硬脂酸钙和硬脂酸锌对PVC_AC配方体系发泡温度的影响.pdfVIP

35 6 Vo.l 35 No. 6 2006 6 Applied Chem ical Industry Jun. 2006 PVC /AC 杨 波, 刘东辉 ( , 650224) : PVC , AC , /AC, AC; /AC 0 B 4B , AC 82e 68e ; /AC 0B 3B , AC 85e 66e ; , : PVC/AC; ; ; : TQ 325. 3 : A : 67 - 3206( 2006) 06- 0435- 02 Effect of stearic calcium and stearic zinc on foam ing temperature in PVC/AC system YAN G B o, L I U D ong-hu i ( The School of B iological and Chem ical Engineering, Kunm ingUn ivers ity of Science andTechnology, Kunm ing 650224, China) Abstract: In flexible PVC m aterial, the foam ing temperature are determ ined under different ratio of wt o k inds of accelerants) ) ) stearic calcium and stearic zinc to azodicarbam ide ( AC). The resu lts show ed that the foam ing temperaturew ill decrease in aw ayw ith the increase of the ratio of accelerants to AC; the foa- m ing temperature drops from 82e to 68e when the ratio of stearic calcium toAC increased from 0 B to 4B ; the foam ing temperature drops from 85e to 66e w hen the ratio of stearic zinc toAC increased from 0B to 3B ; w hile the tendency of temperature transformation is unobvious under some ratios, som e- tmi es it fluctuates even has sudden change. K ey w ord s: PVC /AC; stearic calcium; stearic zinc; foam ing temperature [ 2] , , , [ ] [ ] , ,