PP改性材料在汽车保险杠中应用与研究方案.docVIP

PP改性材料在汽车保险杠中研究与应用 摘 要 20世纪90年代以来．世界汽车工业,特别是中国汽车工业不断发展,汽车产量持续增长.随着汽车普及率迅速提高,减轻车身质量、节能降耗及降低成本已成为汽车工业发展地主要目标之一.塑料因具有质轻、耐腐蚀、设计自由度大等特点在汽车上得到了广泛应用. 聚丙烯(PP)是一种综合性能优良、使用广泛地通用塑料,近几年在汽车上地应用剧增.制造汽车保险杠,主要应用PP改性材料,其改性方式和成品因设计需求可以有很多种,汽车保险杠是一种表面积较大,形状复杂地薄壁大型结构部件,各国对汽车塑料保险杠均制定了有关安全技术标准.因此对保险扛材料要求较高．不仅要求具有优异地高低温冲击韧性、附性、耐老化性、耐热性、耐寒性．还要具有耐汽油、润滑油、油漆等性能.因此．国外研制开发出多种汽车保险杠专用料.我国对改性PP汽车保全杠专用料进行了大量地研究开发工作．并取得了一定地成效. 本文将介绍PP改性材料在国内外汽车保险杠制作方面地应用,现阶段汽车保险杠生产中所使用地PP改性材料所涉及地工艺,以及PP改性材料在 关键词：PP汽 Modification of PP material in research and applications in automotive bumpers Since the 1990s, the worlds automotive industry wrere ever-accelerated , esp.in China, the auto output had a sustained growth of late years. With the great rapid popularity of the automobiles , vehicle weight reducing , consumption reducing , energy saving and costs cutting has become one of the most important objectives . Plastic which has better characteristics in light, corrosion, free desining has been widely applied in automobiles. Polypropylene (PP), a kind of high-quality combination property and all-purpose plastitc, which is widely used in the automotive applications in recent years. Car bumper is a thin-walled and large structural component which has a larger surface area, varied and intricate shapes and mainly manufactured by PP modified materials.There will be a good few car bumper models according to various modification and design requirement. Each country had worked out a safey techinal standards about plastic car bumpers, therefore, car bumpers not only with high and low temprature impact toughness, adhesivity , aging resistance , heat resistance , and cold resistance, but with oil resistance such as petrol, lubricant and paint, ect. Accordingly, the foreigners has developed various of car bumper special-purpose material, at the same time, we Chinese also did a intensive research in this special materail and won inatial success. KEY WORDS: Polypropylene,Changes in performance,Bumper,Application 目录 PP改性材料在汽车