摘要
采用凝胶色谱仪、升温淋洗分析仪、差示扫描量热仪以及X射线衍射仪对国产耐热聚丙烯H8020和2种进口耐热聚丙烯的结构进行表征,进一步采用熔体流动速率仪、万能材料试验机、摆锤冲击仪以及维卡热变形测定仪对性能进行测定。结果表明,H8020的弯曲强度为39.4 MPa、弯曲模量为1820 MPa、拉伸强度为37.5 MPa、冲击强度为3.2 kJ/m^2,具有良好的刚韧平衡性,热变形温度为115℃,维卡软化温度为158℃,综合性能达到甚至超过国外同类材料。
The structure of heat-resistant polypropylene special material(H8020)was characterized by gel permeation chromatography,temperature rising elution fractionation,differential scanning calorimetry and X-ray diffractometer,and its mechanical and heat-resistant properties were investigated by melting flow rate instrument,universal material testing machine,pendulum machine and thermal deformation&Vicat softening temperature tester.The results indicated that the heat-resistant polypropylene exhibited the flexural strength of 39.4 MPa,the flexural modulus of 1820 MPa,the tensile strength of 37.5 MPa and the izod impact strength of 3.2 kJ/m^2,presenting a good balance between rigidity and toughness.Moreover,this special material also showed a thermal deformation temperature of 115℃and a Vicat softening temperature of 158℃.It is concluded that the comprehensive performance of the domestic product H8020 is superior to that of foreign products.
作者
康文倩
马宗立
高玉林
王雄
杨宝
闫功臣
KANG Wenqian;MA Zongli;GAO Yulin;WANG Xiong;YANG Bao;YAN Gongchen(PetroChina Lanzhou Petrochemical Research Center,Lanzhou 730060,China;PetroChina South China Chemicals Marketing Company,Guangzhou 510000,China;PetroChina Lanzhou Petrochemical Company,Lanzhou 730060,China)
出处
《中国塑料》
CAS
CSCD
北大核心
2020年第7期10-13,共4页
China Plastics
关键词
耐热聚丙烯
均聚聚丙烯
冲击强度
heat-resistant polypropylene
homo-polypropylene
impact strength
