纳米碳酸钙对溶聚丁苯橡胶胶料的补强作用

Reinforcing Effect of Nanometer Calcium Carbonate on S SBR Compound

探讨了纳米碳酸钙中白燕华ＣＣ对溶聚丁苯橡胶（ＳＳＢＲ）胶料的补强作用。结果表明，白燕华ＣＣ与ＳＳＢＲ的混炼加工工艺完全可行；单用白燕华ＣＣ作补强填料时，随着其用量的增大，ＳＳＢＲ胶料的硫化速度加快，强力性能显著提高，硬度变化不大；白燕华ＣＣ与ＨＡＦ并用具有协同作用，可使ＳＳＢＲ胶料的物理性能满足实际使用要求；白燕华ＣＣ／ＨＡＦ并用的ＳＳＢＲ／ＮＲ和ＳＳＢＲ／ＢＲ并用胶硫化速度较快。

The reinforcing effect of the nanometer calcium carbonate Baiyanhua CC on the S SBR compound was investigated.The results showed that Baiyanhua CC was easy to incorporate into S SBR compound by using the conventional mixing process;when Baiyanhua CC was used as the only reinforcing filler in S SBR compound,the curing rate increased,the tensile strength improved and the hardness changed little as the level of Baiyanhua CC increased;Baiyanhua CC /HAF had a synergistic effect resulting in a S SBR compound with satisfactory physical properties;and the Baiyanhua CC /HAF reinforced S SBR/NR or S SBR/BR compounds gave faster curing rate,better processability and physical properties.