非胶组分对天然橡胶性能的影响研究  

Effect of Non-rubber Components on Properties of NR

作　　者：郭煜雯 赵帅 鲍柯旭 韩冬仁 吴晓辉[1,3,4] 韩冬礼 张振翀 张继川 GUO Yuwen;ZHAO Shuai;BAO Kexu;HAN Dongren;WU Xiaohui;HAN Dongli;ZHANG Zhenchong;ZHANG Jichuan(Beijing University of Chemical Technology,Beijing 100029,China;Hangzhou Guoren Electrical Engineering Co.,Ltd,Hangzhou311200,China;Energy Conservation and Resource Utilization Engineering Research Center of Elastomer Materials,Ministry of Education,Beijing 100029,China;Center of Advanced Elastomer Engineering Research,Beijing 100029,China;Zibo NEVC Advanced Vehicle Materials Technology Innovation Center,Zibo 255020,China;Shandong Light-Chem Far-sight New Materials Technology Co.,Ltd,Zibo256100,China)

机构地区：[1]北京化工大学材料科学与工程学院先进弹性体材料研究中心,北京100029 [2]杭州国仁机电工程有限公司,浙江杭州311200 [3]弹性体材料节能和资源化教育部工程研究中心,北京100029 [4]北京市先进弹性体工程技术研究中心,北京100029 [5]淄博国创中心先进车用材料技术创新中心,山东淄博255020 [6]山东轻化致远新材料科技有限公司,山东淄博256100

出　　处：《橡胶工业》2024年第7期483-493,共11页China Rubber Industry

基　　金：国家重点研发计划项目(2022YFB3704800,2022YFB3704801);国家自然科学基金资助项目(52273051)。

摘　　要：天然橡胶(NR)中非胶组分对其分子结构和性能有很大影响,在NR的分子结构构建过程中有助于NR分子链由线性结构变为网状结构。传统烟胶片和标准胶的制备过程采用酸凝工艺,加之剪切造粒和高温干燥等加工方式,均造成大量非胶组分的流失。本工作采用薄膜干燥法制备的NR在极大程度上避免了非胶组分的流失,通过此法制备的全组分NR胶料表现出良好的力学性能,与分别去除各非胶组分的NR进行性能对比发现:脱除磷脂导致NR胶料的门尼粘度降低26.92%,硫化诱导期缩短24.91%,耐老化性能有所提高;脱除蛋白质导致NR胶料的门尼粘度降低1.72%,硫化诱导期缩短50%,耐老化性能有一定程度提高。The non-rubber components(NRCs)in natural rubber(NR)had a significant impact on its molecular structure and properties.These components contributed to the process of building the molecular structure of NR from a linear structure to a reticulated structure of the NR molecular chain.However,in the preparation of conventional smoked sheet rubber and standard rubber,the acid coagulation process and processing methods such as shear granulation and high-temperature drying resulted in a significant loss of NRCs.The NR prepared by the thin film drying method employed in this study largely avoided this issue.The full-component NR compound prepared by this method exhibited excellent mechanical properties,a comparison of the properties with NR that removed each NRC revealed the following:the removal of phospholipids led to a 26.92%decrease in the Mooney viscosity of NR compound,a 24.91%shortening in the vulcanization induction period,and an improvement in the aging resistance.The removal of proteins led to a 1.72%decrease in the Mooney viscosity of NR compound,a 50%shortening in the vulcanization induction period,and a certain degree of improvement in the aging resistance.

关 键 词：天然橡胶 非胶组分 蛋白质 磷脂 门尼粘度 耐老化性能 

分 类 号：TQ332[化学工程—橡胶工业]