发泡剂和增硬树脂对轻质天然橡胶材料性能的影响
Effects of Foaming Agents and Hardening Resins on Properties of Light Natural Rubber Materials
方兆森 1翟俊学 1刘浩 1牛明哲 1陈峰1
作者信息
- 1. 青岛科技大学橡塑材料与工程教育部重点实验室 ,青岛 266042
- 折叠
摘要
采用均匀设计法,考察了发泡剂和增硬树脂对轻质天然橡胶材料性能的影响.结果表明,发泡剂N,N'-二亚硝基五亚甲基四胺(H)和增硬树脂(P1)用量变化对NR密度和拉伸强度等有显著影响.增大发泡剂H和增硬树脂P用量,发泡压力增大,硫化起步提前,最高硫化扭矩先增大后减小,拉伸强度和密度均呈线性变化.与单一发泡剂H胶料相比,发泡剂偶氮二甲酰胺(AC)/发泡剂H并用胶料硬度、密度、撕裂强度和定伸应力均较高,发泡材料孔径较小;发泡剂4,4'-氧代双苯磺酰肼(OBSH)/发泡剂H并用胶料密度最小,拉伸强度最大.
Abstract
The effects of foaming agent and hardening resin on the properties of light natural rub-ber materials were investigated by uniform design method.The results showed that the dosage of foa-ming agent N,N'-dinitrosopentamethylenetetramine(H)and hardening resin(P1)had a significant effect on NR density and tensile strength.Increasing the amount of foaming agent H and hardening resin P,the foaming pressure increased,the vulcanization started earlier,the highest vulcanization torque increased first and then decreased,and the tensile strength and density changed linearly.Com-pared with the single foaming agent(H)compound,the hardness,density,tear strength and modulus of the foaming agent azodicarbonamide(AC)/foaming agent(H)blend rubber are higher,and the pore size of the foaming material was smaller.Foaming agent 4,4'-oxodiphenylsulfonyl hydrazide(OBSH)/foaming agent(H)blend rubber had the lowest density and the highest tensile strength.
关键词
天然橡胶/发泡/增硬/配方设计Key words
natural rubber/foaming/hardening/recipe design引用本文复制引用
基金项目
国家自然科学基金(51773104)
国家自然科学基金(51373085)
出版年
2024
NETL
NSTL
维普
万方数据