摘要
分析了DQ-V-01催化剂的物理和化学性质。该催化剂的比表面积为363.90 m^2/g、孔体积为0.37 cm^3/g,较DQ-Ⅲ催化剂大幅度增加。采用DQ-V-01催化剂在Spheripol工艺聚丙烯装置上生产了共聚产品EPS30R,在气相反应压力低于1.1 MPa、气相反应器料位为50%时,共聚产品中的乙烯质量分数大于10%.其常温冲击强度由原来的512 J/m提高到634 J/m,低温冲击强度由原来的62 J/m提高到73 J/m,而弯曲模量基本不变,达到理想的刚韧平衡,产品综合性能优良。
The physical and chemical properties of catalyst DQ -V-01 were analyzed. The results showed that the specific area and pore volume of the catalyst was 360.9 m^2/g and 0.37 cm^3/g, respectively, both increasing in large magnitude compared with catalyst DQ-Ⅲ. The catalyst was used to produce propylene copolymer EPS30R in a Spheripol process polypropylene （PP） plant. In case the reaction pressure was below 1.1 MPa and feedstock level was at 50% in the gas reactor, the ethylene content in the resultant copolymer was higher than 10%, the copelymer＇s impact strength at ambient temperature increased to 634 J/m from its original value 512 J/m and low temperature impact strength rose to 73 J/m from 62 J/m, whereas the copolymer＇s flexural modulus kept unchanged and approached an ideal equilibrium between rigidity and toughness. The comprehensive performance of the copolymer product was superior.
出处
《合成树脂及塑料》
EI
CAS
北大核心
2007年第6期42-44,共3页
China Synthetic Resin and Plastics
关键词
聚丙烯
DQ催化剂
共聚合
冲击强度
polypropylene
DQ catalysts
copolymerization
impact strength
