合成树脂及塑料
閤成樹脂及塑料
합성수지급소료
CHINA SYNTHETIC RESIN AND PLASTICS
2014年
1期
56-58
,共3页
聚氯乙烯%混合料%混料工艺
聚氯乙烯%混閤料%混料工藝
취록을희%혼합료%혼료공예
polyvinyl chloride%blends%blending process
采用星型混合器研究了混料时间、起始温度、搅拌速率等对软质聚氯乙烯（PVC）树脂混合料混合效果的影响，并采用转矩流变仪研究了PVC混合料的塑化性能。结果表明：搅拌速率越快，PVC吸收增塑剂的速率越快，吸收时间缩短；起始温度越高，PVC吸收增塑剂的时间、干点出现时间以及最大扭矩出现时间均明显加快；物料混合过程中加入增塑剂的最佳温度为70~82℃；混料时间过长对混合效果影响不大，混合20min即可。
採用星型混閤器研究瞭混料時間、起始溫度、攪拌速率等對軟質聚氯乙烯（PVC）樹脂混閤料混閤效果的影響，併採用轉矩流變儀研究瞭PVC混閤料的塑化性能。結果錶明：攪拌速率越快，PVC吸收增塑劑的速率越快，吸收時間縮短；起始溫度越高，PVC吸收增塑劑的時間、榦點齣現時間以及最大扭矩齣現時間均明顯加快；物料混閤過程中加入增塑劑的最佳溫度為70~82℃；混料時間過長對混閤效果影響不大，混閤20min即可。
채용성형혼합기연구료혼료시간、기시온도、교반속솔등대연질취록을희（PVC）수지혼합료혼합효과적영향，병채용전구류변의연구료PVC혼합료적소화성능。결과표명：교반속솔월쾌，PVC흡수증소제적속솔월쾌，흡수시간축단；기시온도월고，PVC흡수증소제적시간、간점출현시간이급최대뉴구출현시간균명현가쾌；물료혼합과정중가입증소제적최가온도위70~82℃；혼료시간과장대혼합효과영향불대，혼합20min즉가。
The influences of the blending time, initial temperature and stirring rate on the blending effect of soft polyvinyl chloride (PVC) blends were studied with a star-shaped mixer. The plasticity of PVC blends was researched with a torque rheometer. The results show that the higher the stirring rate is, the higher the plastici-zers absorption rate of PVC is, and therefore the absorption time is shortened. The plasticizers absorption, the occurrence of dry point and maximum torque accelerate significantly with increasing the initial temperature. The optimal temperature for adding plasticizers in the mixing process is 70-82 ℃. Excessively long blending time has little influence on the blending effect, and it is adequate for the blending to last for 20 minutes.
