PA6在受限条件下的非等温结晶行为  

Non-isothermal crystallization behavior of polyamide 6 under confined condition

作　　者：张晓红[1] 谭邦会[1] 刘轶群[1] 高建明[1] 黄帆[1] 宋志海[1] 陈志达[1] 魏根栓[2] 乔金梁[1] 

机构地区：[1]中国石油化工股份有限公司北京化工研究院,北京100013 [2]北京大学化学与生命科学工程学院应用化学系,北京100086

出　　处：《合成树脂及塑料》2005年第5期54-58,共5页China Synthetic Resin and Plastics

基　　金：国家重点基础研究专项经费(G1999064800)资助。

摘　　要：采用共混的方法制备了聚酰胺(PA)6/羧基丁苯粉末橡胶新型热塑性弹性体。通过差示扫描量热法研究了该弹性体中PA6基体在受限条件下的非等温结晶行为。研究发现,羧基丁苯粉末橡胶对PA6具有异相成核作用,可提高PA6的结晶温度和结晶速率;PA6在受限条件下有利于生成γ晶型,且随着羧基丁苯粉末橡胶含量以及吸收剂量的提高,更易生成γ晶型。This paper prepared a novel kind of thermoplastic elastomer （TPE） with blending process from polyamide 6 （PA 6） and ultra-fine full-vulcanized carboxylic styrene-butadiene powdered rubber （CSB-UFPR）. The non-isothermal crystallization behavior of PA 6 as matrix that was confined in TPE was studied by means of differential scanning calorimetry. The results reveal that CSB-UFPR can act as a heterogeneous nucleating agent for PA 6 crystallization, thereby being able to increase crystallization temperature and crystallization rate of PA 6. Under the confined condition PA 6 favor the crystal phase of 3＇ instead of γ, and increasing CSB-UFPR content and absorbent dosage can significantly benefit the formation of crystal phase of γ.

关 键 词：聚酰胺6 羧基丁苯橡胶 受限 非等温结晶 

分 类 号：TQ323.6[化学工程—合成树脂塑料工业]