气相流化床反应器中乙烯注入量对乙烯/丙烯/1-丁烯无规抗冲共聚聚丙烯结构和性能的影响  

Influence of Ethylene Injection Amount in the Gas Phase Fluidised Bed Reactor on the Structure and Properties of Ethylene/Propylene/1-Butene Random Impact Polypropylene Copolymer

作　　者：白丰铭 马应霞 谢昕 李姝姝 张定军 BAI Fengming;MA Yingxia;XIE Xin;LI Shushu;ZHANG Dingjun(State Key Laboratory of Advanced Processing and Recycling of Nonferrous Metals,School of Material Science and Engineering,Lanzhou University of Technology,Lanzhou 730050,China;Lanzhou Petrochemical Research Center,PetroChina,Lanzhou 730060,China)

机构地区：[1]兰州理工大学材料科学与工程学院,省部共建有色金属先进加工与再利用国家重点实验室,兰州730050 [2]中国石油兰州化工研究中心,兰州730060

出　　处：《材料导报》2022年第10期225-230,共6页Materials Reports

基　　金：国家自然科学基金(51663013);沈阳材料科学国家研究中心-有色金属加工与再利用国家重点实验室联合基金(18LHPY005)。

摘　　要：采用Ziegler-Natta 1型进口催化剂,利用Spheripol中试装置,在环管反应器中用乙烯、丙烯、1-丁烯代替单一的丙烯,通过改变气相流化床反应器中乙烯注入量,制备了一系列乙烯/丙烯/1-丁烯三元无规抗冲共聚聚丙烯(EPBC),利用傅里叶红外光谱仪(Fourier transform infrared spectroscopy,FTIR)、升温淋洗检测仪(Temperature rising elution fractionation,TREF)、乌式黏度计、凝胶渗透色谱仪(Gel permeation chromatography,GPC)、差示扫描量热仪(Differential scanning calorimetry,DSC)、广角X射线衍射仪(Wide-angle X-ray diffraction,WAXD)、扫描电子显微镜(Scanning electron microscopy,SEM)等研究了气相流化床反应器中乙烯注入量对EPBC结构和性能的影响。结果表明,随着气相流化床反应器中乙烯注入量的增加,所制备的EPBC样品抗冲性能逐渐增强,且当乙烯注入量为9.0 kg/h时,获得的样品最大简支梁冲击强度为21.02 kJ/m^(2)。Using Ziegler-Natta 1 imported catalyst in the Spheripol pilot plant,a series of ethylene/propylene/1-butene tertiary random impact polypropylene copolymers(EPBC)were prepared by varying the ethylene injection amount in the gas-phase fluidised bed reactor and replacing single propylene with ethylene,propylene and 1-butene in the ring-tube reactor.The effects of the ethylene injection amount in the gas-phase flui-dised bed reactor on the structure and properties of EPBC were investigated by FTIR,TREF,ubbelohde,GPC,DSC,WAXD and SEM,et al.The results show that with the increase of ethylene injection amount in the gas phase fluidised bed reactor,impact resistance of the obtained EPBC samples gradually increased,and the maximum brief beam impact strength of the sample was 21.02 kJ/m^(2)at the ethylene injection amount of 9.0 kg/h.

关 键 词：气相流化床反应器 无规抗冲共聚聚丙烯 乙烯注入量 抗冲性能 

分 类 号：O632.12[理学—高分子化学]