工程塑料应用
工程塑料應用
공정소료응용
ENGINEERING PLASTICS APPLICATION
2015年
4期
119-123
,共5页
聚氯乙烯%柱撑水滑石%稀土%热稳定剂
聚氯乙烯%柱撐水滑石%稀土%熱穩定劑
취록을희%주탱수활석%희토%열은정제
poly(vinyl chloride)%pillared hydrotalcite%rare earth%thermal stabilizer
采用共沉淀法制备了一种新型的PVC热稳定剂——月桂酸柱撑锌铝铈三元类水滑石，采用X射线粉末衍射(XRD)、傅立叶变换红外光谱(FTIR)对其结构进行了表征。利用刚果红法、转矩流变仪等考察其对PVC性能的影响，并研究了与常见热稳定(助)剂的协同效应。结果表明，月桂酸柱撑锌铝铈类水滑石的长期热稳定性较好。当月桂酸柱撑锌铝铈类水滑石与季戊四醇、硬脂酸锌的质量比为1.5∶1∶1时协同效果较好，当3份该复合热稳定剂加入到100份PVC时，可使PVC静态及动态热稳定时间分别达到118 min和47 min，扭矩适中，拉伸强度为49.1 MPa，断裂伸长率为51.8%，冲击强度为5.8 kJ／m2，能够提高PVC的热稳定性能和力学性能。
採用共沉澱法製備瞭一種新型的PVC熱穩定劑——月桂痠柱撐鋅鋁鈰三元類水滑石，採用X射線粉末衍射(XRD)、傅立葉變換紅外光譜(FTIR)對其結構進行瞭錶徵。利用剛果紅法、轉矩流變儀等攷察其對PVC性能的影響，併研究瞭與常見熱穩定(助)劑的協同效應。結果錶明，月桂痠柱撐鋅鋁鈰類水滑石的長期熱穩定性較好。噹月桂痠柱撐鋅鋁鈰類水滑石與季戊四醇、硬脂痠鋅的質量比為1.5∶1∶1時協同效果較好，噹3份該複閤熱穩定劑加入到100份PVC時，可使PVC靜態及動態熱穩定時間分彆達到118 min和47 min，扭矩適中，拉伸彊度為49.1 MPa，斷裂伸長率為51.8%，遲擊彊度為5.8 kJ／m2，能夠提高PVC的熱穩定性能和力學性能。
채용공침정법제비료일충신형적PVC열은정제——월계산주탱자려시삼원류수활석，채용X사선분말연사(XRD)、부립협변환홍외광보(FTIR)대기결구진행료표정。이용강과홍법、전구류변의등고찰기대PVC성능적영향，병연구료여상견열은정(조)제적협동효응。결과표명，월계산주탱자려시류수활석적장기열은정성교호。당월계산주탱자려시류수활석여계무사순、경지산자적질량비위1.5∶1∶1시협동효과교호，당3빈해복합열은정제가입도100빈PVC시，가사PVC정태급동태열은정시간분별체도118 min화47 min，뉴구괄중，랍신강도위49.1 MPa，단렬신장솔위51.8%，충격강도위5.8 kJ／m2，능구제고PVC적열은정성능화역학성능。
A novel thermal stabilizer for PVC,lauric acid pillared Zn-Al-Ce hydrotalcite-like,was synthesized by coprecipitation method. The structure was characterized by X ray powder diffraction(XRD) and Fourier transform infrared spectroscopy(FTIR). The property and synergy effect with other stabilizers were studied by Congo red testing method and torque rheometer. The results indicate that the novel thermal stabilizer behave a long-term thermal stability. Synergy effect is good with the mass ratio of the novel thermal stabilizer∶pentaerythritol∶zinc stearate being 1.5∶1∶1. When 3 phr compound thermal stabilizer is added in 100 phr PVC,the static and dynamic thermal stability time reach 118 min and 47 min,the torque is fit,the tensile strength is 49.1 MPa,elongation at break is 51.8%and impact strength is 5.8 kJ/m2. Compound thermal stabilizer can improve thermal stability properties and mechanical properties of PVC.
