文章摘要
超细碳酸钙填充粉末SBR的制备及其硫化胶的性能
Properties of SBR Powder Filled with Ultra-fine Calcium Carbonate and Its Vulcanizate
  
DOI：
中文关键词: 粉末SBR  包覆剂  超细碳酸钙
英文关键词: SBR powder  encapsulant  ultra-fine calcium carbonate
基金项目:
作者单位
王炼石 华南理工大学 
吴向东 华南理工大学 
贾德民 华南理工大学 
郑立楷 华南理工大学 
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中文摘要:
      填充型粉末SBR以高分子电解质为包覆剂，以超细碳酸钙为填充剂通过共沉法制成,在适当的反应条件下其粒径≤0.9mm。粉末SBR硫化胶有良好的力学性能，包覆剂对SBR有补强作用。SEM分析显示超细碳酸钙在硫化胶中主要以原生粒子和团粒存在，其位径分别为0.05和1μm左右。DSC分析表明，在粉末橡胶中，SBR的玻璃化温度Tg和包覆剂晶体的熔点Tm随着超细碳酸钙填充量的增加而下降。
英文摘要:
      The filled SBR powder was prepared by co-precipitation with polyelectrolyte as encapsulant，ultra-fine calcium carbonate as filler.The product with particle size ≤ O.9mm could be obtained under appropriate conditions.The vulcanizate of SBR powder showed good mechanical properties because of the reinforcement of encapsulant.It was showed by SEM that the ultra-fine calcium carbonate was present in the vulcanizate primarily in the form of primary and aggregated particules with the size of about O.05μm and 1μm respectively.It was showed by DSC that Tg of SBR in the filled SBR powder and Tg of the encapsulant crystal decreased as the level of the ultra-fine calcium carbonate increased.
Author NameAffiliation
Wang Lianshi South China University of Science and Technology 
Wu Xiangdong South China University of Science and Technology 
Jia Demin South China University of Science and Technology 
Zheng Likai South China University of Science and Technology 
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