Currently, the number of standing bamboos in the country exceeds 28 billion, the planting area exceeds 7 million hectares, and the bamboo stockpiles are approximately 500 million tons. Bamboo winding composite material is a bio-based material independently developed in China with

Abstract

China is the world's most important bamboo-producing country and enjoys the reputation of " bamboo kingdom". Currently, the number of standing bamboos in the country exceeds 28 billion, the planting area exceeds 7 million hectares, and the bamboo stockpiles are approximately 500 million tons. Under the "double carbon" goal, bamboo winding is presented to the world with the image of "green, environmentally friendly, ecological and energy-saving". Bamboo winding composite material is a bio-based material independently developed in China with complete intellectual property rights. It has many advantages such as light weight, high strength, renewable, low-carbon energy saving and green environmental protection. It is currently used in municipal administration, transportation, military industry, water conservancy and There are a large number of applications in construction and other fields, and its industrial chain covers the primary, secondary and tertiary industries. In an environment where bamboo winding technology is becoming increasingly mature, the output value of the bamboo winding industry will exceed trillions in the future, becoming a "new engine" to promote the high-quality development of China's economy. At the same time, with the popularization of bamboo winding technology, China's "lucid waters and green mountains" will be better built, thereby achieving sustainable development goals.

1 Introduction

In recent years, the domestic bio-based materials industry has developed rapidly, maintaining an average annual growth rate of more than 20%. The market scale has continued to expand, and product categories have continued to enrich, providing "green" raw materials for the transformation and upgrading of the manufacturing industry. In " Made in China 2025", nanomaterials and bio-based materials are listed as frontier areas of new materials; in the " "13th Five-Year Plan" National Science and Technology Innovation Plan ", it is also clearly stated that "we must promote bio-based materials, Large-scale production and application of bio-based chemicals, etc." The "14th Five-Year Plan" not only symbolizes that our country has embarked on a new journey towards becoming a modern and powerful country, but also ushered in new development opportunities for the bio-based materials industry. The "good and fast" development of bio-based materials can not only help achieve the strategic goal of becoming a material power, but also greatly increase the "green" content of China's manufacturing. Bamboo winding composite material is China's first new bio-based material. It uses natural bamboo as the basic material, thermosetting resin as the adhesive, and is made by the winding process. It can replace plastic, steel, metal, wood and cement. and other traditional materials. Bamboo winding composite materials are widely used in the manufacture of pipe corridors, pipelines, high-speed rail carriages, modular houses, military products, etc. They play an important role in promoting the green transformation of traditional industries, helping China build a world material power, and achieving sustainable development goals. irreplaceable role.

2 Bamboo winding overview

Bamboo winding composite material is a new bio-based material that uses water-soluble amino resin as the adhesive and is processed by the winding process. It is a joint venture between the R&D team of the International Bamboo and Rattan Center and Zhejiang Xinzhou Bamboo-based Composite Materials Technology Co., Ltd. and developed through more than 10 years of joint efforts, it is a new bio-based material. Bamboo winding technology has broken the inherent understanding of the application of bamboo formed by mankind for thousands of years and started a new journey of transformation of the traditional bamboo industry. Bamboo winding composite material technology can be widely used in municipal administration, water conservancy, construction, transportation, petrochemical industry, marine, aerospace, national defense construction and other fields, and plays an important role in the development of the national economy.

At present, the main uses of bamboo winding technology and composite materials are: (1) Bamboo winding composite pipe. Bamboo winding composite pipe maximizes the axial tensile strength of bamboo fiber while producing stress-free defect distribution within the pipe structure, thus ensuring that the pipe has stronger pressure-bearing capacity. (2) Bamboo winding pipe gallery. The bamboo winding pipe corridor is made of bamboo as the basic material, thermosetting resin as the adhesive, and processed by winding technology. It has the characteristics of strong performance, low cost, long life, green and low carbon, and easy installation. It can replace the currently commonly used Pipe corridors made of prefabricated or cast-in-situ reinforced concrete can be used as materials for urban infrastructure. (3) Bamboo wrapped around high-speed rail carriages. Bamboo-wrapped high-speed rail carriages have the characteristics of low cost, green and low carbon, strong safety, good sound insulation effect, and renewable resources, and can meet the country's "lightweight and green" development requirements for the transportation industry. (4) Bamboo wrapped modular house.The decoration of all rooms of the bamboo-wound modular house is completed in the factory. After the whole unit is transported to the destination, it can be put into use immediately, which can greatly reduce the construction waste on site. This kind of house has the advantages of being green, environmentally friendly, portable, thermally insulated and earthquake-resistant. It can be used in the construction of shelters to contribute to epidemic prevention and control. It can also be used to build emergency symbiosis bases to effectively respond to various emergency emergencies. In particular, the traditional model of building rural housing with bricks, tiles, reinforced concrete, etc. can be changed so that farmers can live in new, green, comfortable, and safe houses. (5) Bamboo wrapped military products. Bamboo winding composite materials have the advantages of high strength, light weight, good stealth performance, strong deformation resistance, non-flammability, sound insulation and heat insulation, and good seawater resistance. They have extremely broad application prospects in the military industry. For example: On the eve of August 1, 2018, my country successfully developed a portable bamboo-wound rocket launcher barrel, which has the advantages of low cost, light weight, small deformation, and high temperature resistance, and has huge potential in military applications.

3 Development status of my country's bamboo industry

Currently, there are more than 500 varieties of bamboo in my country, mainly distributed in 16 provinces including Guangxi, Guangdong, Jiangxi, Fujian, Anhui, and Zhejiang. According to data from the "Three Land Adjustments", the current bamboo planting area across the country has exceeded 7 million hectares.

html Over the past 20 years, my country's bamboo industry has achieved remarkable development results, making great contributions to increasing farmers' income, promoting regional economic development, and ensuring national ecological security. First, product types are more abundant. At present, the products of the bamboo industry mainly include bamboo building materials, bamboo artificial panels, bamboo fiber products, bamboo pulp papermaking, bamboo handicrafts, bamboo daily necessities, bamboo vinegar liquid, bamboo charcoal, bamboo leaf extract, and bamboo shoot processing Bamboo products are widely used in furniture, packaging, transportation, construction, health care, medicine, tourism, textiles, decoration, food, papermaking and many other fields. Second, the scale of the industry continues to expand. In the past 15 years, the average annual growth rate of the total output value of the bamboo industry has been more than 10%. In 2020, my country's total bamboo output exceeded 3.2 billion (as shown in Figure 1), and the total output value of the bamboo industry exceeded 300 billion yuan. Third, the effect of enriching the people has become increasingly prominent. The bamboo industry involves primary, secondary and tertiary industries, has a long industrial chain, strong employment capacity, and has achieved remarkable results in increasing agricultural income. In Anji, Zhejiang, Jianou, Fujian, and Luzhou, Sichuan, the bamboo industry has become a local pillar industry. Fourth, innovation capabilities have been greatly improved. At present, my country's bamboo processing and utilization technology has reached the world's leading level, and a large number of new products and technologies have emerged, mainly including bamboo-wood composite, bamboo recombined lumber, bamboo integrated lumber , bamboo winding, etc. Fifth, global influence continues to strengthen. The International Bamboo and Rattan Organization, with my country as the "host", is growing day by day, with 48 member countries, transforming bamboo and rattan from "poor people's wood" into globally recognized "green gold".

Data source: "China Statistical Yearbook 2021"

Figure 1 China's bamboo production from 2016 to 2020

4 The important role of bamboo winding in sustainable development

4.1 The role of bamboo winding in carbon sequestration and carbon reduction

To achieve In the high-end development of my country's bamboo industry, the National Forestry and Grassland Administration's Bamboo Winding Composite Materials Engineering Technology Research Center has achieved remarkable results in the field of bamboo winding through 145 years of hard research. Currently, 290 patents have been successfully authorized, including 76 invention patents and 18 foreign invention patents; and, 1 group standard, 2 industry standards, and 1 national standard have been formed. Bamboo winding composite materials have strong corrosion resistance, weather resistance, safety, deformation resistance, pressure bearing capacity, long service life, etc., and have a long life cycle. They are suitable for cement, steel, bricks, plastics and fiberglass. An ideal substitute for high energy consumption materials. The promotion and use of bamboo winding composite materials can replace high-energy-consuming and high-pollution materials, and can achieve very obvious carbon reduction effects.Taking the annual production of 10 million tons of bamboo winding composite pipes instead of spiral welded pipes as an example, carbon dioxide emissions can be reduced by 52.23 million tons; taking the annual assembly of 100 million square meters of bamboo winding material houses as an example, carbon dioxide emissions can be reduced by 17.8 million tons. .

The role of bamboo winding in carbon sequestration and carbon reduction is mainly reflected in the following two aspects: On the one hand, bamboo has strong carbon storage capacity during its growth process. According to relevant studies, one hectare of moso bamboo can store 5.09 tons of carbon per year, which is 1.33 times that of tropical rainforest and 1.46 times that of Chinese fir. However, currently, about 110 million tons of bamboo are idle in my country every year, accounting for 73.3%. Long-term idleness will cause the degradation of bamboo forests and even cause the death of bamboos. On the other hand, the production process of bamboo winding composite materials has strong carbon reduction capabilities. For example, through comparison with five traditional pipe production processes, it can be seen that no process carbon emissions are produced during the production of bamboo winding composite pipes, and the energy consumption level of the entire process is also significantly lower than that of traditional pipes. At present, the proportion of fossil energy consumption is still over 85%. Replacing traditional pipes with bamboo winding composite pipes can achieve obvious carbon reduction and energy saving benefits. Taking a pipe with a diameter of 1000mm and a pressure level of 0.6MPa as an example, the energy consumption per unit length of the bamboo winding composite pipe is only 54.9 kgce/m, which is similar to that of plastic pipes, welded steel pipes , ductile iron pipes , and reinforced concrete drainage Compared with prestressed steel cylinder concrete pipe , the energy saving is 64.2%, 77.6%, 77.3%, 32.2%, 38.3% respectively; the carbon emission per unit length of pipe production of bamboo winding composite pipe is only 125.7 kgCO2/m, which is higher than the above five types. Pipelines reduce carbon emissions by 225.4kgCO2/m, 485.8 kgCO2/m, 487.3 kgCO2/m, 149.4 kgCO2/m, and 159.0 kgCO2/m respectively (as shown in Table 1).

Table 1 Comparison of energy consumption and carbon emissions during the entire production process of each pipeline (pipe diameter 1000 mm, pressure level 0.6 MPa)

4.2 The role of bamboo winding in rural revitalization

In my country, the population in mountainous areas accounts for the total population of the country. The proportion of mountainous areas in the total land area is 56%, and the mountainous area accounts for 69% of the total land area. The social and economic development in mountainous areas is relatively backward, and people's livelihood problems are more obvious. However, bamboo forests are mostly distributed in mountainous areas and are the most critical source of income for local finance and people in mountainous areas. In recent years, the average annual growth rate of bamboo planting area in my country has exceeded 200,000 hectares. Actively promoting the development of the bamboo winding industry can speed up the cultivation and production of bamboo resources, create more benefits for people in mountainous areas, and help achieve the goal of rural revitalization.

First, create more jobs. There are approximately 400 million tons of bamboo resources that can be cut down and utilized in the world every year. If all bamboo resources are used to develop the bamboo winding industry, 80 million farmers can be employed and the average household income can be increased by US$600. From the perspective of bamboo resource cultivation, manufacturing 10 million tons of bamboo winding composite pipes requires 25 million tons of moso bamboo, with a market value of approximately 20 billion yuan, which can increase the income of 5 million farmers. From the perspective of bamboo processing, the production of 60 million tons of bamboo raw materials can create employment for 9 million workers. In terms of the production of bamboo winding composite materials, processing 150 million tons of bamboo winding products can create 1.45 million jobs and the per capita income can exceed US$9,000.

Secondly, promote the good economic development of bamboo producing areas. The annual production capacity of the standardized production module of bamboo winding composite pipe is 20,000 tons, and the annual sales are 250 million yuan; if 500 modules can be deployed nationwide within 5 years, the annual production capacity of bamboo winding products will reach 10 million tons, The annual output value of the entire industry chain will exceed 350 billion yuan. Bamboo winding composite pipes have broad prospects in the international infrastructure market and will gradually become popular in rail transit, water diversion pipelines, urban pipe corridors, power pipelines and other fields in the future. With the continuous improvement and widespread application of bamboo winding technology, it can effectively promote the economic development of bamboo producing areas. The large-scale development of the bamboo winding industry can greatly improve the utilization efficiency of bamboo resources and significantly increase the added value of bamboo forests. Vigorously developing the bamboo winding industry can create more jobs for farmers, increase farmers' income, and thus promote the sound development of the rural economy.

5 Accelerate the development of the bamboo winding industry and help achieve sustainable development

5.1 Further strengthen the top-level strategic design of the bamboo winding industry

First of all, from the top-level design ideas of the industry, we must pay close attention to the strategic development needs of the bamboo winding industry, focus on key issues, and comprehensively Give full play to regional and resource advantages, further expand the industrial chain, improve the value chain, and integrate the supply chain to promote the "good and fast" development of the bamboo winding industry. First, make rational use of modern smart technology to build a smart bamboo winding industry, always adhere to innovation as the core driving force, and establish and improve a modern market system, processing system and operating system to achieve the "high-quality, multi-format" development of the bamboo winding industry. Implement the concept of modern agricultural operation and actively explore core technological changes in all aspects of bamboo winding industry operations with "mechanization and intelligence" as key breakthroughs to achieve "intensive, mechanized, and large-scale" development of the bamboo winding industry; implement the concept of modern industry , rationally build a bamboo winding industrial park and comprehensively develop bamboo winding deep processing products. Second, further broaden the horizons of business and trade, vigorously develop the commercial bamboo winding industry, build a modern commercial market system, and accelerate the international trade of bamboo winding products. Third, adhere to the principle of global openness, vigorously develop the bamboo humanities industry, and realize the innovative development of the bamboo winding cultural industry.

Secondly, from the perspective of major industrial projects, first, adhere to modern industrial thinking and carry out deep processing and intelligent actions of bamboo winding products. Improve and strengthen the bamboo winding industry and rationally lay out the bamboo winding industry base. Second, support the construction of “Smart China” and actively carry out smart management actions. Build an expert decision-making support service system, product quality traceability system, precise production management system, etc. for the "Smart Bamboo Winding Industry", and promote the construction of a big data cloud platform for the bamboo winding industry. Third, accurately align with the “Belt and Road” strategy, carry out global business operations, and continue to expand the overseas market for bamboo winding products. Build a global business and trade expo park for the bamboo winding industry, build a global financial center for the bamboo winding industry, a bamboo winding tourist shopping center and a bamboo winding product trading center.

5.2 Further improve the standardization work of the bamboo winding industry

First, comprehensively deploy the preliminary research on important standards for the bamboo winding industry. Science and technology are an important foundation for bamboo winding industry standards. In accordance with the construction needs of the bamboo and rattan standard system, preliminary research on the bamboo winding industry standards should be strengthened and the standard level should be further improved to ensure the advancement, rationality and feasibility of the bamboo winding industry standards. According to important national strategic needs, promotion projects and scientific research plans, comprehensive research is conducted on important standards for the bamboo winding industry. Standards are an effective channel to achieve seamless connection between technology and industry. Focusing on the bamboo winding industry, we should strengthen industry standard research, absorb new research results in a timely manner, continuously improve the standard level, upgrade technologies with completely independent intellectual property rights to industrial standards, and coordinate and promote standard research, formulation and industrialization to ensure The effectiveness and advancement of industrial standards.

Second, mobilize bamboo winding enterprises to actively participate in standardization work. Enterprises are the "main force" in formulating industrial standards. Product quality is a concentrated expression of enterprise management work. Industrial standards need to be implemented by enterprises, and enterprises are usually the most familiar with industry conditions and production conditions. Without enterprises, standards can be formulated Participation will make it less operable. When products are processed in , there are often many factors that affect product quality. Enterprises rely on several standards to constrain the production process, thereby controlling the impact of various factors to a minimum level and avoiding product quality problems. The most effective measure to prevent enterprises from "bringing private interests" is to make the process of standard revision and review as public as possible; when writing bamboo winding industry standards, relevant writers need to extensively solicit well-known enterprises, design units, universities and colleges, and Based on the opinions of scientific research institutions, on the premise of meeting the requirements of "applicability, simplicity and comprehensiveness", the preparation of bamboo winding industry standards should be completed with high quality.

Third, increase the publicity and implementation of bamboo winding industry standards.The ultimate goal of revising standards is to serve practice, not only to play a good guiding role, but also to play a good normative role. Taking "revision of standards for practice" as the fundamental starting point for carrying out standardization work in the bamboo winding industry. Increase the publicity and implementation of bamboo winding industry standards, aiming to allow standard executors to fully understand and grasp the requirements and parameters of industry standards, so that industry standards can be effectively implemented in the daily production and operation processes of enterprises. Bamboo winding industry standards can only play a corresponding role through publicity and implementation; if they cannot be effectively implemented, even the best standards will be just "a piece of paper" and difficult to play their specific role. It is necessary to make full use of new media, forums, conferences and other methods to carry out standard interpretation, publicity and training and other related work, further strengthen the understanding and understanding of standards by enterprises and relevant personnel, and accelerate the implementation and implementation of standards. Continuously optimize the bamboo winding industry standards and evaluate the effectiveness of the industry standards in a timely manner to ensure the rationality, standardization and operability of the bamboo winding industry standards.

5.3 Further enrich and innovate bamboo winding industry products

In order to meet the major strategic requirements such as rural revitalization and low-carbon development, the "14th Five-Year Plan" period needs to focus on innovative development of new bamboo products with the characteristics of competitiveness, high value and green environmental protection. technology and new products. Focus on the research and development of bamboo winding technology and composite materials, and deepen the application of bamboo winding technology and materials in fields such as water conservancy, construction, packaging, military, sports, and automobiles. In the process of product innovation and development in the bamboo winding industry, the following principles should be strictly adhered to: First, product functionality. Based on the characteristics of bamboo winding composite materials, strengthen its anti-cracking, waterproof, mildew-proof, flame-retardant, anti-discoloration, durability and other functions, focusing on the development of multi-functional products that can effectively meet people's needs for "clothing, food, housing and transportation" Bamboo wrapping products. Second, technical specialization. The advantageous innovative technologies of bamboo winding composite materials can be effectively exploited, such as weaving, winding and other innovative technologies that use bamboo winding materials with strong toughness and strength to develop high-value products that are different from wood. Third, the processing is extreme. From the micro-nano level, we pursue the ultimate quality of bamboo winding product processing; from the element application perspective, we pursue the ultimate application of bamboo parenchyma cells, fibers, and three major components. Fourth, the design is novel. Based on modern aesthetics and personalized demands, and fully combining the natural color, texture, structure, smell and other characteristics of bamboo, we focus on developing bamboo winding products that meet ergonomic requirements and give full play to bamboo's advantages of environmental protection and high flexibility.

The above-mentioned innovative development of bamboo winding products requires the support of science and technology. Therefore, while developing the bamboo winding industry, we should clarify the industry ideas and clarify the key development directions in 2025. In terms of scientific research work, we will make every effort to build the National Engineering Laboratory or National Key Laboratory , etc., keep a close eye on the global scientific and application frontiers of bamboo winding, benchmark against the world's top levels, and actively promote the "original and subversive" development of China's bamboo winding technology. We will deepen the exploration of the ultimate production technology of bamboo winding composite materials in the high-precision field, build a comprehensive evaluation model for bamboo winding products, etc. Encourage central enterprises and state-owned enterprises to participate in the construction of the bamboo winding industry, give full play to the advantages of state-owned capital platforms, and accelerate the development of the bamboo winding industry.

5.4 Further increase scientific and technological support for the bamboo winding industry

First, set up an expert service team. Focusing on leading enterprises, universities, and scientific research institutions in various regions, we will create a top talent pool for the bamboo winding industry's "technological innovation-marketing-industrial economy" and set up an expert service team. Arrange industry experts to provide consulting services on cutting-edge trends in the bamboo winding industry and "stuck neck" technologies, provide strong technical support for bamboo winding enterprises, scientific research, investment promotion, etc., and establish and improve the "resource cultivation-product processing-" bamboo winding industry -Product Quality" standard system, with "Agricultural Products Geographical Indication Products" as symbols, guiding major provinces and cities across the country to build a bamboo winding industry brand system. Second, build a bamboo winding talent training mechanism.Rely on leading enterprises and universities to continuously improve the bamboo winding talent training system and cultivate more talents for the "good and fast" development of the bamboo winding industry. Third, build a promotion mechanism for bamboo winding technology. Build a four-level promotion mechanism of "province - city (state) - county (city, district) - township (town)" to provide services for the application of bamboo winding standard systems and the promotion of scientific and technological achievements. Fourth, establish a bamboo winding industry research center. In the key development areas of the bamboo winding industry, relying on local leading enterprises and competent authorities, joint enterprises and scientific research institutions have established bamboo winding industry research centers, thereby promoting the "good and fast" development of the regional bamboo winding industry.

6 Conclusion

In summary, bamboo winding technology has effectively filled the gap in the bamboo industry. This technology has completely independent intellectual property rights and is at the leading level in the world. Bamboo winding technology and bamboo winding composite materials are of great significance in implementing the "two mountains" concept and achieving the "double carbon" goal. From the perspective of sustainable development of human society, the bamboo winding industry plays an extremely important role in carbon sequestration and carbon reduction and in promoting rural revitalization. Under the new development concept of and , measures should be taken to further strengthen the top-level strategic design of the bamboo winding industry, further improve the standardization work of the bamboo winding industry, further enrich and innovate the bamboo winding industry, and further increase the scientific and technological support for the bamboo winding industry to promote The high-quality development of the bamboo winding industry helps achieve sustainable development goals. (Author: Academician Tang Jian) ​​

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