工程塑料应用
工程塑料應用
공정소료응용
ENGINEERING PLASTICS APPLICATION
2015年
8期
30-34
,共5页
张金柱%狄烁%程银银%吴木德%何慧
張金柱%狄爍%程銀銀%吳木德%何慧
장금주%적삭%정은은%오목덕%하혜
聚丙烯%各向同性收缩率%各向异性收缩率%收缩率调节剂%聚苯乙烯
聚丙烯%各嚮同性收縮率%各嚮異性收縮率%收縮率調節劑%聚苯乙烯
취병희%각향동성수축솔%각향이성수축솔%수축솔조절제%취분을희
polypropylene%isotropic shrinkage%anisotropic shrinkage%shrinkage rate regulator%polystyrene
通过选定特定熔体流动速率共聚聚丙烯(PP)与纳米CaCO3、滑石粉、短切玻璃纤维(GF)和收缩率调节剂茂金属线性低密度聚乙烯(mPE–LLD)接枝物制备了改性PP材料,研究了各组分对改性PP水平流动方向和垂直流动方向收缩率及力学性能的影响.结果表明,纳米CaCO3及滑石粉的复合加入可减少PP水平和垂直方向收缩率差异,而mPE–LLD接枝物的加入可显著降低PP水平和垂直方向收缩率的差异.当纳米CaCO3、滑石粉、玻璃纤维和mPE–LLD接枝物质量分数分别为5%,20%,8%,5%时,所制得的改性PP水平和垂直方向收缩率分别为0.63%和0.65%,接近各向同性收缩.且所制的改性PP材料的力学性能和收缩接近于高抗冲聚苯乙烯(HIPS)水平,可替代HIPS在家电等产品上应用.
通過選定特定鎔體流動速率共聚聚丙烯(PP)與納米CaCO3、滑石粉、短切玻璃纖維(GF)和收縮率調節劑茂金屬線性低密度聚乙烯(mPE–LLD)接枝物製備瞭改性PP材料,研究瞭各組分對改性PP水平流動方嚮和垂直流動方嚮收縮率及力學性能的影響.結果錶明,納米CaCO3及滑石粉的複閤加入可減少PP水平和垂直方嚮收縮率差異,而mPE–LLD接枝物的加入可顯著降低PP水平和垂直方嚮收縮率的差異.噹納米CaCO3、滑石粉、玻璃纖維和mPE–LLD接枝物質量分數分彆為5%,20%,8%,5%時,所製得的改性PP水平和垂直方嚮收縮率分彆為0.63%和0.65%,接近各嚮同性收縮.且所製的改性PP材料的力學性能和收縮接近于高抗遲聚苯乙烯(HIPS)水平,可替代HIPS在傢電等產品上應用.
통과선정특정용체류동속솔공취취병희(PP)여납미CaCO3、활석분、단절파리섬유(GF)화수축솔조절제무금속선성저밀도취을희(mPE–LLD)접지물제비료개성PP재료,연구료각조분대개성PP수평류동방향화수직류동방향수축솔급역학성능적영향.결과표명,납미CaCO3급활석분적복합가입가감소PP수평화수직방향수축솔차이,이mPE–LLD접지물적가입가현저강저PP수평화수직방향수축솔적차이.당납미CaCO3、활석분、파리섬유화mPE–LLD접지물질량분수분별위5%,20%,8%,5%시,소제득적개성PP수평화수직방향수축솔분별위0.63%화0.65%,접근각향동성수축.차소제적개성PP재료적역학성능화수축접근우고항충취분을희(HIPS)수평,가체대HIPS재가전등산품상응용.
By using the selected melt index co-polypropylene,nano-CaCO3,talcum powder,chopped glass fiber and metallocene polyethylene graft copolymer which acted as conditioning agent concentration percentage,the modified polypropylene materials were prepared.The effects of above groups on the shrink rate and mechanical properties of modified polypropylene in the horizontal and vertical flowing direction were studied.The results show that the combined addition of nano-CaCO3 and talcum powder can partly reduce the difference in the shrink rate of polypropylene between the horizontal and vertical directions,while metallocene polyethylene graft copolymer can significantly reduce.When the mass fraction of nano-CaCO3,talcum powder,glass fiber and metallocene polyethylene graft copolymer is 5%,20%,8%,5%,the shrink rate of gained modified polypropylene materials in horizontal and vertical directions is 0.63% and 0.65%,close to the isotropic shrink rate,and the mechanical properties and concentration of gained modified polypropylene materials are close to those of HIPS,and the materials can replace HIPS to be used for household appliances and other products.
