摘要
通过开炼机、密炼机、橡胶加工分析仪、毛细管流变仪考察了国产溶聚丁苯橡胶（SSBR，牌号为T2000R）的基本加工性能，并与乳聚丁苯橡胶（ESBR，牌号为1502）进行了比较分析。结果表明，当开炼机辊筒温度控制在35—50℃，且前辊温度稍低于后辊温度，缩小辊距时，SSBR—T2000R包辊良好；为使SSBR—T2000R的密炼机混炼达到良好效果，密炼机温度开始应控制在60～80℃，且需采用增强剂或生胶分批加入的混炼工艺；与ESBR-1502相比，在较低温度（小于77℃）、低剪切频率（小于30s^-1）的条件下，如混炼、压延工艺，SSBR—T2000R混炼胶的剪切黏度和剪切模量较低，具有良好的加工性能；在挤出工艺中，SSBR—T2000R的剪切黏度较ESBR-1502稍高，应提高其加工温度，以100-130℃为宜。可使挤出物外观光滑。
The fundamental processing perform- ance of solution polymerized styrene-butadiene rubber （SSBR-T 2000 R） was investigated with open mill, internal mixer, rubber processing analyzer, and capillary rheometer,and compared with those of emulsion styrene-butadiene rubber （ ESBR-1502 ） . The results showed that SSBR-T 2000 R had good banding on open mill when the roll temperature was 35 -50℃, the temperature of front roll was lower than that of back roll, and the nip was lessened. In order to improve the mixing efficiency of SSBR-T 2000 R, the temperature of internal mixer should be controlled to 60 - 80℃ , and the reinforcer or the rubber was added in batches. At low temperature less 30 s-l SSBR- an 77 %）and low shear rate（less than , for example in mixing or calendering, 2000 R compounds had lower shear viscosity, shear modulus and better processing performance. In extrusion process, the shear viscosity of SSBR-T 2000 R compound was higher than that of ESBR-1502, so the higher processing temperature of 100 - 130℃ was recommended.
出处
《合成橡胶工业》
CAS
CSCD
2010年第3期211-216,共6页
China Synthetic Rubber Industry
基金
国家自然科学基金资助项目(20674043)
关键词
溶聚丁苯橡胶
乳聚丁苯橡胶
混炼
流变性能
挤出
加工性能
solution polymerized styrene-butadiene rubber
emulsion styrene-butadiene rubber
mixing
rheological property
extrusion
processing performance
