文章摘要
硫黄在天然橡胶/丁苯橡胶并用胶中偏析行为的研究
Study on Segregation Behavior of Sulfur in NR/SBR Blends
投稿时间：2019-12-26  修订日期：2019-12-26
DOI：10.12136/j.issn.1000-890X.2020.11.0827
中文关键词: 硫黄  偏析  天然橡胶  丁苯橡胶  并用胶  交联密度  补强
英文关键词: sulfur  segregation  NR  SBR  blend  crosslinking density  reinforcement
基金项目:国家自然科学基金资助项目（51503114）
作者单位E-mail
韩廷会 青岛科技大学 橡塑材料与工程教育部重点实验室 2669513821@qq.com 
刘宏旭 青岛科技大学 橡塑材料与工程教育部重点实验室  
初　晴 青岛科技大学 橡塑材料与工程教育部重点实验室  
孙　翀 青岛科技大学 橡塑材料与工程教育部重点实验室  
庄　涛* 青岛科技大学 橡塑材料与工程教育部重点实验室 zhuangtao@qust.edu.cn 
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中文摘要:
      制备普通硫黄硫化体系的天然橡胶（NR）/丁苯橡胶（SBR）并用胶，研究硫黄在NR/SBR并用胶中的偏析行为。结果表明：硫黄在NR/SBR并用胶中偏析于SBR相，且在NR和SBR界面处可能存在共交联；NR/SBR并用胶的ｔ10和ｔ90随着NR/SBR并用比的增大而缩短；硫黄用量为2.25份时，NR/SBR并用胶的交联密度和硬度随着NR/SBR并用比的增大而增大；硫黄用量为3.25份时，过硫化的SBR相以“增强微球”在NR基体中起补强作用。
英文摘要:
      Natural rubber （NR）/styrene-butadiene rubber（SBR） blends with common sulfur curing system were prepared，and the segregation behavior of sulfur in the NR/SBR blends was studied. The results showed that，sulfur segregated in the SBR phase，and there might be co-crosslinking at the interface between NR and SBR. The ｔ10 and ｔ90 of the NR/SBR blends was shortened with the increase of the NR/SBR blending ratio. When the amount of sulfur was 2. 25 phr，the crosslinking density and hardness of the NR/SBR blends increased with the increase of the NR/SBR blending ratio. When the amount of sulfur was 3. 25 phr，the over-vulcanized SBR phase acted as the reinforcement microspheres in the NR matrix.
Author NameAffiliationE-mail
HAN Tinghui Qingdao University of Science and Technology 2669513821@qq.com 
LIU Hongxu Qingdao University of Science and Technology  
CHU Qing Qingdao University of Science and Technology  
SUN Chong Qingdao University of Science and Technology  
ZHUANG Tao Qingdao University of Science and Technology zhuangtao@qust.edu.cn 
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