广州化工
廣州化工
엄주화공
GUANGZHOU CHEMICAL INDUSTRY AND TECHNOLOGY
2011年
19期
56-58
,共3页
硫脲%稀土%热稳定剂%PVC
硫脲%稀土%熱穩定劑%PVC
류뇨%희토%열은정제%PVC
thiourea%rare earth%themal stabilizer%PVC
以硫脲、稀土镧为主要原料,制备了新型的稀土复合热稳定剂,并利用稀土热稳定剂与其他热稳定剂之间的协同效应,使它们按一定比例配合使用,以达到延长稳定时间的目的。实验结果表明,添加硫脲的稀土复合热稳定剂与传统热稳定稳定剂相比可以更显著地提高PVC的热稳定性能。将其与Zn（C17 H35 COO）2和Ca（C17H35COO）2按一定比例配合后,其热稳定效果更佳。
以硫脲、稀土鑭為主要原料,製備瞭新型的稀土複閤熱穩定劑,併利用稀土熱穩定劑與其他熱穩定劑之間的協同效應,使它們按一定比例配閤使用,以達到延長穩定時間的目的。實驗結果錶明,添加硫脲的稀土複閤熱穩定劑與傳統熱穩定穩定劑相比可以更顯著地提高PVC的熱穩定性能。將其與Zn（C17 H35 COO）2和Ca（C17H35COO）2按一定比例配閤後,其熱穩定效果更佳。
이류뇨、희토란위주요원료,제비료신형적희토복합열은정제,병이용희토열은정제여기타열은정제지간적협동효응,사타문안일정비례배합사용,이체도연장은정시간적목적。실험결과표명,첨가류뇨적희토복합열은정제여전통열은정은정제상비가이경현저지제고PVC적열은정성능。장기여Zn（C17 H35 COO）2화Ca（C17H35COO）2안일정비례배합후,기열은정효과경가。
Thiourea and lanthanum was used as the main raw material to preparate a new composite heat stabilizer.With the synery between rare-earth thermal stabilizer and other heat stabilizers and match them at a certain percentage,the stabilization time was extend.The results showed that compared to conventional heat stabilizers,thermal stability can be significantyly improved by the new type of composite rare earth heat stabilizer with thiourea.It matched with Zinc stearate or Calcium stearate at some certain percentage and gained beter results.
