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| 改性伊利石在天然橡胶中的应用研究 |
| Application of Modified Illite in Natural Rubber |
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| DOI： |
| 中文关键词: 伊利石 改性 天然橡胶 酸洗 十六烷基三甲基溴化铵 接枝 |
| 英文关键词: illite modification natural rubber acid treatment hexadecyl trimethyl ammonium bromide graf |
| 基金项目: |
| 中图分类号:TQ330. 38＋3；TQ332. 1 |
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| 中文摘要: |
| 用盐酸酸洗和十六烷基三甲基溴化铵（CTAB）接枝改性伊利石，并研究改性伊利石在天然橡胶中的应用。结果表明：与改性伊利石相比，改性酸洗伊利石的热质量损失率和CTAB接枝量更大；改性质量分数为0. 01盐酸酸洗伊利石的CTAB接枝量最大，改性质量分数为0. 05盐酸酸洗伊利石未接枝CTAB；随着改性酸洗伊利石用量增大，胶料的门尼粘
度提高，硫化速度总体略有减慢，交联密度总体增大；伊利石和改性酸洗伊利石胶料的硬度、300%定伸应力、拉伸强度和撕裂强度明显提高，其中改性酸洗伊利石胶料的物理性能略优；添加10份改性酸洗伊利石胶料的拉伸强度最大。 |
| 英文摘要: |
| Illite was treated by hydrochloride and then grafted with hexadecyl trimethyl ammonium bromide（CTAB），and the application of acid-treated and CTAB-grafted illite in natural rubber（NR） was studied. The results showed that，compared with CTAB-modified illite without acid treatment，acid-treated and CTAB-grafted illite showed a higher mass loss rate in thermal decomposition and had a larger amount of grafted CTAB. It was found that when the mass fraction of hydrochloride was 0. 01，the acid-treated illite
possessed the largest amount of grafted CTAB，and when the mass fraction of hydrochloride was 0. 05，CTAB could not be grafted on the acid-treated illite. With the increasing of acid amount in the treatment process of illite，the Mooney viscosity of the acid-treated and CTAB-grafted illite filled NR compound increased，curing speed slightly decreased，and crosslinking density increased. With illite，either modified or unmodified，the hardness，modulus at 300% elongation，tensile strength and tear strength of illite filled NR compounds increased significantly. However，the physical properties of the compound with the acid-treated and CTABgrafted illite were better，and the compound with 10 phr acid-treated and CTAB-grafted illite possessed the maximum tensile strength. |
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