雾化喷射压力对氧化石墨烯-SiO<sub>2</sub>/天然橡胶复合材料性能的影响

边慧光; 常天浩; 牛广智; 汪传生; 宋凤鹏; 刘洁

doi:10.13801/j.cnki.fhclxb.20190122.003

雾化喷射压力对氧化石墨烯-SiO₂/天然橡胶复合材料性能的影响

青岛科技大学机电工程学院, 青岛 266061

基金项目: 山东省成果转化（2014CGZH0405）；山东省科技发展计划（2013TD16006）；山东省高等学校科技计划（J15LB73）；青岛市应用基础研究计划（16-5-1-100-jch）；山东省重点研发计划（2019GGX102018）；青创科技计划（2019KJB007）；山东省自然科学基金资助项目（ZR2016XJ003）

详细信息

通讯作者:
汪传生,教授,博士生导师,研究方向为高分子材料加工机械,E-mail:wcsmta@qust.edu.cn

中图分类号: TB332
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出版历程
- 收稿日期: 2018-10-24
- 刊出日期: 2019-11-14

Effect of atomizing spray pressure on performance of graphene oxide-SiO₂/ natural rubber composite

College of Mechanical and Electrical Engineering, Qingdao University of Science and Technology, Qingdao 266061, China

摘要

摘要: 采用自主研发的雾化溅射干燥法制备氧化石墨烯（GO）-SiO₂/天然橡胶复合材料，基于雾化法中物料液柱在高压作用下撞击高温金属壁面发生溅射爆破，实现液滴的二次分散和水分的瞬间脱除，保持填料GO-SiO₂在天然胶乳中的高分散状态。探究了雾化溅射干燥法喷射压力大小对填料GO-SiO₂分散的影响及对GO-SiO₂/天然橡胶复合材料性能的影响。实验表明，过高或过低的压力都不利于高性能GO-SiO₂/天然橡胶母胶的制备，当喷射压力为0.8 MPa时，填料GO-SiO₂在天然橡胶的分散效果最好，制备的GO-SiO₂/天然橡胶复合材料的综合性能最优，其中拉伸强度为31.2 MPa，撕裂强度达到89.01 kNm^-1，断裂伸长率为670.90%，在60℃左右损耗因子更低。
- 湿法混炼 /
- 雾化溅射干燥法 /
- 喷射压力 /
- 氧化石墨烯(GO) /
- 复合材料
Abstract: The graphene oxide(GO)-SiO₂/natural rubber composite was prepared by a self-developed spray sputtering drying method. Based on the principle of sputter blasting of the liquid column at high pressure against the metal wall with high temperature, achieved the secondary dispersion of droplets and the instantaneous removal of moisture and keeping the high dispersion state of GO-SiO₂ fillers in the natural latex. The effect of the spray pressure on the dispersion of GO-SiO₂ fillers and on GO-SiO₂/natural rubber composite by spray sputtering drying method was investigated. The experimental results show that higher or lower pressure is not conducive to the preparation of high-performance masterbatch. When the spray pressure is 0.8 MPa, the dispersion effect of GO-SiO₂ filler in the rubber is the best, and GO-SiO₂/natural rubber composite has the best comprehensive properties. The tensile strength is 31.2 MPa, the tear strength is 89.01 kNm^-1, the elongation at break is 670.90%, and the loss factor is lower at about 60℃.
- wet mixing /
- spray sputtering drying method /
- spray pressure /
- graphene oxide(GO) /
- composites

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