PP CB5108H油化

pp cb5108h油化--b5108h的主要特性有:

通过 rohs 认证

高刚度

高光泽度

共聚物

耐冲击

房屋

电气用具

家庭应用

汽车行业

食品接触应用

pp is easy to break and degrade under the action of light andheat. pp without stabilizer will become brittle when heated formore than half an hour at 150 c or exposed to sunshine for 12 days.pp powder without stabilizer will degrade seriously in indoorshelter for 4 months and emit obvious acid taste. adding more than0.2% antioxidant before granulation of pp powder can effectivelyprevent the degradation and aging of pp in the process ofprocessing and use. antioxidants can be divided into twocategories: free radical chain reaction terminators, also known asmain antioxidants and peroxide decomposition agents, also known asauxiliary antioxidants. rational combination of main and auxiliaryantioxidants will play a good synergistic effect. after leaving thedie, if pp is cooled slowly in air, larger grains will be formedand the transparency of the product is low. if the film is water as follows, the molecule movement of pp is frozen rapidlyand the crystal can not be formed, then the film is completelytransparent. the shrinkage rate of pp is larger than that of absplastics, reaching over 2%, which is much larger than that of absplastics by 0.5%.