摘要
利用自制熔体微分静电纺丝装置,添加相对分子质量调节剂CR76,进行聚丙烯（PP）熔体微分静电纺丝,讨论了CR76含量及纺丝温度对PP熔体黏度及纤维直径的影响.结果表明：在200 ～ 280℃加工温度下,添加质量分数2％ ～ 10％ CR76的PP熔体黏度降低到纯PP的25％以下;提高CR76含量与纺丝温度有助于PP纤维直径细化;添加质量分数10％ CR76,纺丝温度280℃,制备的PP纤维直径大都小于lμm,平均直径可达970 nm.
Polypropylene （PP） melt was electrospun into fibers by adding relative molecular weight regulator CR76 on a self- made melt differential electrospinning unit. The effects of CR76 content and spinning temperature on PP melt viscosity and fiber diameter were discussed. The result showed that PP melt viscosity was decreased to less than 25% of the viscosity of pure PP as the addition of CR76 was 2% - 10% by mass fraction and the spinning temperature was 200 - 280 ℃ ; the increase of CR76 con- tent and spinning temperature helped the thinning of PP fiber; the produced PP fiber had the diameter generally below 1 p,m and the average diameter of 970 nm as the mass fraction of CR76 was 10% and the spinning temperature was 280 ℃.
出处
《合成纤维工业》
CAS
北大核心
2014年第4期22-25,共4页
China Synthetic Fiber Industry
基金
北京市自然科学基金资助项目(2141002)
关键词
聚丙烯
静电纺丝
熔体微分
相对分子质量调节剂
纤维细化
纤维直径
polypropylene
electrospinning
melt differential
relative molecular weight regulator
fiber thinning
fiber diame-ter
