摘要
以乙烯 -醋酸乙烯共聚物通过等离子体接枝丙烯酸以达到阻燃的目的。接枝后样品的点燃时间延长、极限氧指数提高、成炭量增加 ,说明接枝后的侧基 (-COOH ,-COONa和 -COOK)在热降解过程中不仅自身参与成炭 ,而且强有力地促进了基体聚合物的成炭过程。
An attempt has been made in this study to render polymers flame retardancy by a grafting method induced by plasma. Based on ethylene-vinyl acetate (EVA) copolymer grafted with acrylic acid, it was found that the time to ignition of the grafted sample was extended. The limiting oxygen index and char residue were raised. This indicates that the side groups of -COOH, -COONa and -COOK in the grafted layer not only can be charred in the thermal degradation stage, but can also promote charring of the substrate polymer.
出处
《功能高分子学报》
CAS
CSCD
2000年第1期85-89,共5页
Journal of Functional Polymers
关键词
阻燃
等离子体
EVA
丙烯酸
表面接枝
flame retardancy
surfaces
plasma
EVA copolymer
acrylic acid
grafting
