玻纤增强聚丙烯材料耐高温冷却液老化性能研究

Study on High Temperature Coolant Aging Resistance of Glass Fiber Reinforced Polypropylene Materials

研究了短玻纤增强聚丙烯材料各组分对耐高温冷却液老化后性能保持率的影响,结果表明:在30%玻纤增强聚丙烯材料中,基体树脂使用高结晶M1200HS时,耐高温冷却液的老化性能保持率为84%;随着接枝物含量增加,耐高温冷却液老化性能保持率先增加后降低,接枝物质量分数为3%时,耐高温冷却液老化性能保持率最优为84%;随着玻纤含量增加,耐高温冷却液老化性能保持率逐渐降低;随着玻纤保留长度下降,耐高温冷却液老化性能保持率逐渐提高,当玻纤保留长度为380μm时,老化性能保持率达到92%。

The high temperature coolant aging resistance of each component of short glass fiber reinforced polypropylene was studied.The results show that in 30%glass fiber reinforced polypropylene material,when the matrix resin uses high crystalline M1200HS,the aging resistance performance retention rate of high temperature coolant aging resistance is 84%.As the content of grafted polymer increases,the high temperature coolant aging resistance performance retention rate first increases and then decreases.When the mass fraction of grafted polymer is 3%,the optimal high temperature coolant aging resistance performance retention rate is 84%.As the content of fiberglass increases,the coolant aging resistance performance retention rate gradually decreases.As the retention length of glass fibers decreases,the high temperature coolant aging resistance performance retention rate gradually increases.When the retention length of glass fibers is 380μm,the aging performance retention rate reaches 92%.