When reclaimed materials, sprue materials and added fillers are used to reduce the cost of finished products, today's high raw material costs are the path of every company, but the finished products are fragile and easy to break, and the toughness is not good. A headache!
So how to solve this problem?
First, the most common method of toughening is to mix the new materials with the same amount of recycled materials.
Mixing together with the same amount of new material plus recycled material, this method can drive the toughness of the recycled material because of the good toughness of the raw material. This is also the most common toughening method. It also saves costs.
Second, there is a product for toughening plastics on the market: plastic toughener (plasticizer)
Adding a toughening agent to the recycled material can make the recycled material toughen.
Toughener is generally divided into: particle toughening agent, liquid toughening agent, powder toughening agent.
Three kinds of toughening agents. Each brand of toughening agent is added in different amounts. The price is different. The effect is good toughening agent, which can make the toughness of the recycled material the same as the raw material, sometimes than the raw material. The toughness is good. The toughening agent formulations of various plastics are different.
Third, in addition to the above two methods of toughening, there is also the addition of EVA plastic
EVA: Ethylene-vinyl acetate copolymer is called EVA, and the content of vinyl acetate (VA) is generally 5%~40%. Compared with polyethylene, EVA reduces the high crystallinity due to the introduction of vinyl acetate monomer in the molecular chain. It improves flexibility, impact resistance, filler compatibility and heat sealing properties. Therefore, it is also possible to add EVA to the recycled material, which can improve the flexibility and impact resistance of the recycled material, thereby increasing the toughness of the plastic.
Tips
When the plastic is toughened, the number of plastics recovered is different. The toughening effect required by each person is different, and sometimes the amount of toughening agent added is not the same.