文章摘要
Influence of Ammonia Free Preserving Agent HY on Properties of Natural Rubber
  
DOI：
Key Words: ammonia free preserving agent ；fresh natural rubber latex；physical propertv
Author NameAffiliation
ZHANG Wen-fei Hainan University； AgriculturaL Product Processing Research Institute. Chinese Academy of Tropical Agriculture Science 
CHEN Tao Hainan University 
WANG Ting Hainan University； AgriculturaL Product Processing Research Institute. Chinese Academy of Tropical Agriculture Science 
HUANG Mao-fang AgriculturaL Product Processing Research Institute. Chinese Academy of Tropical Agriculture Science 
ZENG Ri-zhong Rubher Research Institute. Chinese Academy of Tropical Agriculture Science 
GUI Hong-xing AgriculturaL Product Processing Research Institute. Chinese Academy of Tropical Agriculture Science 
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Abstract:
      Using a soluble and non-volatile broad-spectrum bactericide HY as a new ammonia free preserving agent for fresh natural rubber latex（NRL），and the preservation effect and influence of HY on the properties of raw and crosslinked NR were investigated. The result showed that，HY had good effect on the preservation of fresh NRL，the viscosity and pH value remained almost unchanged while the fresh NRL was stored for 120 h，and the addition level of acid for coagulation decreased significantly. The performance of HY preserved raw rubber metthe requirements of standard natural rubber， and the plasticity retention index was 10 units higher than that of ammonia preserved rubber. The physical properties of NR vulcanizate were much better than those of ammonia preserved NR vulcanizate，especially，26% higher for the tensile strength.
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