高分子通报
高分子通報
고분자통보
POLYMER BULLETIN
2010年
2期
103-106
,共4页
杨韶辉%刘民英%付鹏%王玉东%陈占有%张彦昌%赵清香
楊韶輝%劉民英%付鵬%王玉東%陳佔有%張彥昌%趙清香
양소휘%류민영%부붕%왕옥동%진점유%장언창%조청향
2,6-萘二甲酸%1,13-十三碳二胺%非等温结晶%结晶动力学%差示扫描量热
2,6-萘二甲痠%1,13-十三碳二胺%非等溫結晶%結晶動力學%差示掃描量熱
2,6-내이갑산%1,13-십삼탄이알%비등온결정%결정동역학%차시소묘량열
2,6-Naphthalene dicarboxylic acid%1,13-Tridecamethylene diamine%Non-isothermal crystallization%Crystallization kinetics%Differential scanning calorimetry
采用DSC方法研究了PA18N在不同降温速率下的结晶过程,并利用Avrami方程研究了其非等温结晶动力学.在非等温结晶过程中,随着降温速率的增大,结晶温度向低温偏移.综合利用Avrami方程得到Avrami指数为1.35～1.88和结晶速率常数Z_c≈1;并求得其结晶活化能为-58.42kJ/mol.结果表明,PA13N的结晶能力小于其他脂肪族尼龙.
採用DSC方法研究瞭PA18N在不同降溫速率下的結晶過程,併利用Avrami方程研究瞭其非等溫結晶動力學.在非等溫結晶過程中,隨著降溫速率的增大,結晶溫度嚮低溫偏移.綜閤利用Avrami方程得到Avrami指數為1.35～1.88和結晶速率常數Z_c≈1;併求得其結晶活化能為-58.42kJ/mol.結果錶明,PA13N的結晶能力小于其他脂肪族尼龍.
채용DSC방법연구료PA18N재불동강온속솔하적결정과정,병이용Avrami방정연구료기비등온결정동역학.재비등온결정과정중,수착강온속솔적증대,결정온도향저온편이.종합이용Avrami방정득도Avrami지수위1.35～1.88화결정속솔상수Z_c≈1;병구득기결정활화능위-58.42kJ/mol.결과표명,PA13N적결정능력소우기타지방족니룡.
The non-isothermal crystallization processes and kinetics of poly(tridecame thylene2,6-naphthalamide)(PA13N)were studied by DSC.The Avrami equation can be used in the primary stage of non-isothermal crystallization kinetics.For the non-isothermal crystallization,the peak temperature of the DSC curves gradually decreases with cooling rate increasing.According to Avrami equation,the ratio of Avrami index was calculated as 1.35 ～1.88,the crystallization rate constant 1,the activation energy-58.42kJ/mol.The results showed that PA13 was harder to be crystallized as compared with other aliphatic nylon.
