新型无氨保存剂HY对鲜天然胶乳及橡胶性能的影响

以不挥发水溶性广谱抗菌剂三嗪衍生物（HY）为鲜天然胶乳（NRL）的保存剂，研究保存剂HY对NRL．保存效果及天然橡胶（NR）生胶和硫化胶性能的影响。结果表明：采用保存剂HY的NRL保存120 h后，其粘度、pH值变化不大，且后期凝同用酸量显著减小，保存效果较好；NR生胶的各项指标均符合5^#标准胶标准要求，且塑性保持率比氨保存生胶高10个单位值；NR硫化胶的物理性能明显优于氨保存剂硫化胶，尤其是拉伸强度提高了26%;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