PA6德国巴斯夫B3EG6巴斯夫

之后跌如钢铁企业、钢铁加工企业、火力发电等污染大户
pp because the homopolymer pp temperature is higher than 0c, very brittle, so many commercial pp materials are 1~4% ethylene random copolymer/higher proportion of ethylene content of the segment copolymer. copolymer type pp material has lower thermal distortion temperature (100c), low transparency, low gloss&low rigidity, but has stronger impact strength. the strength of pp increases with the increase of ethylene content.