Efforts to decrease crosslinking extent of polyethylene in a reactive extrusion grafting process

被引：0
|
作者：
Yang, Jinghui [1 ]
Yao, Zhanhai [1 ]
Shi, Dean [1 ]
Huang, Hongliang [1 ]
Wang, Yong [1 ]
Yin, Jinghua [1 ]
机构：
[1] Polymer Physics Laboratory, Changchun Inst. of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
来源：
| 1600年 / John Wiley & Sons Inc, New York, NY, United States卷 / 79期
关键词：
Benzene - Crosslinking - Grafting (chemical) - Methane - Monomers - Oleic acid - Paraffins - Polymethyl methacrylates - Polystyrenes;
D O I：
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学科分类号：
摘要：
Grafting of acrylic acid and glycidyl methacrylate onto low density polyethylene (LDPE) was performed by using a corotating twin-screw extruder. The effects of residence time and concentration of initiator and monomers on degree of grafting and gel content of grafting LDPE were studied systematically. Paraffin, styrene, p-benzoquinone, triphenyl phosphite, tetrachloromethane, and oleic acid were added to try to decrease the extent of crosslinking of LDPE. 4-hydroxyl-2,2,6,6-tetramethyl-1-piperidinyloxy (4-hydroxyl-TEMPO) and dipentamethylenethiuram tetrasulfide were also tried to inhibit crosslinking reaction of LDPE during its extruding grafting process. It was found that p-benzoquinone, triphenyl phosphite and tetrachloromethane were good inhibitors for crosslinking of LDPE.
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