TPU composite fabric is the main raw material for professional waterproof backpack production, but many people do not know this kind of fabric. In this regard, Love Freedom Luggage has collected and sorted out some relevant knowledge about TPU composite fabrics. Today, follow the footsteps of Love Freedom Luggage to learn about this kind of fabric!
TPU composite fabrics are composed of TPU films laminated on various fabrics to form a A composite material, combining the characteristics of the two to obtain a new type of fabric.
TPU (Thermoplastic polyurethanes), thermoplastic polyurethane , is a linear block copolymer composed of oligomer polyol soft segment and diisocyanate-chain extender hard segment. TPU can be made into a film by casting, blown film, calendaring or coating. It has the advantages of good elasticity, strength, wear resistance, good cold resistance, environmental protection and non-toxic properties.
There are two ways to make TPU composite fabrics. One is called post-pasting: it is first made into a TPU film and then glued to the fabric. The other is called online lamination. Glue is applied to the fabric or no glue is applied, and the TPU is directly glued. Make TPU composite fabric or mesh fabric on the fabric.
The main characteristics of TPU composite fabrics are as follows:
Wide range of hardness: By changing the ratio of the reaction components of TPU composite fabrics, products with different hardnesses can be obtained, and as the hardness increases, the products still maintain good elasticity and Wear resistance.
High mechanical strength: TPU composite fabric products have outstanding load-bearing capacity, impact resistance and shock absorption properties.
Outstanding cold resistance: The glass transition temperature of TPU composite fabric is relatively low, and it still maintains good elasticity, flexibility and other physical properties at minus 35 degrees.
Waterproof backpack made of TPU composite fabric
Good processing performance: TPU composite fabric can be processed using common thermoplastic material processing methods, such as injection molding , extrusion, calendering, etc. At the same time, co-processing of TPU composite fabrics with certain polymer materials can produce polymer alloys with complementary properties. Oil, water and mold resistant. Good recyclability.
Uses of TPU composite fabrics include: inflatable life jackets, diving BC jackets, life rafts, inflatable boats , inflatable tents, military inflatable self-expanding mattresses, massage air bags, medical anti-decubitus mattresses and professional waterproof backpacks.
