合成树脂及塑料
閤成樹脂及塑料
합성수지급소료
CHINA SYNTHETIC RESIN AND PLASTICS
2015年
1期
67-70
,共4页
聚酯热熔胶%滑石粉%非等温结晶%相对结晶度
聚酯熱鎔膠%滑石粉%非等溫結晶%相對結晶度
취지열용효%활석분%비등온결정%상대결정도
polyester hot melt adhesive%talc%non-isothermal crystallization%relative crystallinity
采用差示扫描量热仪研究了滑石粉原位聚合对聚酯热熔胶非等温结晶性能的影响，并用Takhor方程和莫志深非等温结晶动力学新方程处理所得数据。结果表明：滑石粉原位聚合显著促进了聚酯热熔胶的结晶，提高了结晶速率，表现在结晶温度和结晶活化能大幅提高，当降温速率分别为5，10℃/min时，半结晶时间缩短50%以上。动力学分析表明：莫志深方程适合描述聚酯热熔胶的非等温结晶过程，在达到相同相对结晶度时，加入滑石粉的聚酯热熔胶所需降温速率更小，缩短了热熔胶涂覆后的冷却固化时间。
採用差示掃描量熱儀研究瞭滑石粉原位聚閤對聚酯熱鎔膠非等溫結晶性能的影響，併用Takhor方程和莫誌深非等溫結晶動力學新方程處理所得數據。結果錶明：滑石粉原位聚閤顯著促進瞭聚酯熱鎔膠的結晶，提高瞭結晶速率，錶現在結晶溫度和結晶活化能大幅提高，噹降溫速率分彆為5，10℃/min時，半結晶時間縮短50%以上。動力學分析錶明：莫誌深方程適閤描述聚酯熱鎔膠的非等溫結晶過程，在達到相同相對結晶度時，加入滑石粉的聚酯熱鎔膠所需降溫速率更小，縮短瞭熱鎔膠塗覆後的冷卻固化時間。
채용차시소묘량열의연구료활석분원위취합대취지열용효비등온결정성능적영향，병용Takhor방정화막지심비등온결정동역학신방정처리소득수거。결과표명：활석분원위취합현저촉진료취지열용효적결정，제고료결정속솔，표현재결정온도화결정활화능대폭제고，당강온속솔분별위5，10℃/min시，반결정시간축단50%이상。동역학분석표명：막지심방정괄합묘술취지열용효적비등온결정과정，재체도상동상대결정도시，가입활석분적취지열용효소수강온속솔경소，축단료열용효도복후적냉각고화시간。
The?non-isothermal?crystallization?properties?of?polyester?hot?melt?adhesive?modified?by?in-situ?polymerization?with?talc?were?studied?by?differential?scanning?calorimetry(DSC).?The?kinetic?data?obtained?were?processed?by?Takhor?equation?and?Mo′s?new?non-isothermal?crystallization?equation.?The?results?show?that?the?in-situ?polymerization?with?talc?significantly?promotes?the?crystallization?of?the?polyester?hot?melt?adhesive.?The?crystallization?rate?improves?greatly,?mainly?in?the?increase?of??crystallization?temperature?and?activation?energy.?Half-crystallization?time?is?being?shortened?by?more?than?50%?at?the?cooling?rate?of?5,10?℃/min?respectively.?The?kinetic?analysis?results?show?that?Mo′s?equation?is?suitable?to?describe?the?non-isothermal?crystallization?process?of?the?polyester?hot?melt?adhesive.?The?polyester?hot?melt?adhesive?adding?talc?needs?lower?cooling?rate?when?achieving?the?same?relative?crystallinity,which?means?the?shortened?cooling?and?curing?time?in?the?hot?melt?adhesive?coating.
