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。
The effects of foaming agent and hardening resin on the properties of light natural rubber materials were investigated by uniform design method.The results showed that the dosage of foaming 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.Compared 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.
作者
方兆森
翟俊学
刘浩
牛明哲
陈峰
FANG Zhao-sen;ZHAI Jun-xue;LIU Hao;NIU Ming-zhe;CHEN Feng(Qingdao University of Science and Technology,Qingdao 266042,China)
出处
《特种橡胶制品》
CAS
2024年第1期1-5,共5页
Special Purpose Rubber Products
基金
国家自然科学基金(编号51773104、51373085)。
关键词
天然橡胶
发泡
增硬
配方设计
natural rubber
foaming
hardening
recipe design
