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Do you know the role of high density oxidized polyethylene wax SN3316 in pultrusion process?

Do you know the role of high density oxidized polyethylene wax SN3316 in pultrusion process?

2022-01-10

As a kind of high-performance additive, high-density oxidized polyethylene wax is commonly used in PVC hard products industry, coating industry, textile industry, papermaking industry and so on. In fact, high-density oxidized polyethylene wax is widely used, and its application fields are constantly penetrating, and many fields are constantly developed.

The pultrusion process of carbon fiber reinforced epoxy resin composites refers to the process of pulling out the continuous carbon fiber impregnated with epoxy resin through a heating die to form a predetermined section profile. Its procedure is: impregnating carbon fiber reinforced material with resin; After the carbon fiber is preformed, it enters the heating mold for further impregnation, matrix resin curing and composite setting; Cut the profile according to the required length. In this process, there are two ways to impregnate carbon fiber with epoxy resin: one is glue tank impregnation. That is, the reinforcement material is dipped into the resin tank and then enters the mold. This method is usually used; The second is injection impregnation. In the pultrusion process of carbon fiber reinforced epoxy resin composites, the raw materials involved include epoxy resin, carbon fiber, anhydride fiber, accelerator and release agent. Epoxy resin is the matrix material, carbon fiber is the reinforcing material, and high-density ope wax SN3316 is the release agent.

In the pultrusion molding process of carbon fiber reinforced epoxy resin composites, the resin system and release agent are evenly mixed with a mass ratio of 100:1 and injected into the rubber groove of the pultrusion equipment. The pultrusion die adopts three-stage gradient temperature heating mode, with a temperature of 120-160 ℃ and a pultrusion speed of 0.3-0.6m/min to prepare pultruded carbon fiber unidirectional composites. Some composites are cured for 1h after being below 200 ℃ In this process, high-density oxidized polyethylene wax SN3316 can improve resin flow, improve pultrusion linear speed, improve product surface quality, and do not affect the subsequent processing of products.

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