pp material? Using the toughness of SBS and SEBS, the impact strength, flexural performance and so on can be improved. polypropylene (PP), polyethylene (PE), and polystyrene (PS) are the three major plastic products. SBS's polymer modification is also mainly focused on the modification of these plastics.
To improve compatibility, a brand with high styrene content and matching the molecular weight of the plastic is generally selected. Adding 10% to 15% of SBS to polyethylene (PE), polypropylene (PP), polystyrene (PS) and other plastics for blending and modification can significantly improve its impact, stress cracking and tear resistance, and at the same time improve its softness at room temperature and low temperature. The modified polymer can be widely used in daily necessities, home appliances, automotive parts and other aspects.
For example, blending and modifying PS with SBS can greatly improve the brittleness of PS, so that its impact resistance is significantly enhanced, reaching or exceeding high impact polystyrene (HIPS), while maintaining the original hardness, bending strength and thermal deformation temperature of , and have good transparency. It is widely used as home appliances, transparent boards, instrument shells, and various decorative products.
In addition, SBS can also be used as a blender for some incompatible thermoplastics to control the shrinkage performance of the resin, etc. SEBS is a hydrogenation product of SBS with specific structures and excellent aging resistance. SEBS is also one of the most commonly used plastic modifiers. The plastic varieties that can be modified with SEBS include PP, PS, PA, PPO, PC, etc. The ratio of addition of toughener for
pp material? However, SBS and SEBS are non-polar polymers and have poor compatibility with polar polymers such as PA, PET, and PPO. After chemical modification, polar functional groups can be used as toughening agents or compatibilizers. For example, SEBS modified by maleic anhydride graft is an excellent compatibilizer. Lien TPE manufacturers have developed and produced various plastic toughening agents, and are already a domestic toughening agent brand manufacturer.
