| 木质素用量对乳液共沉天然橡胶性能的影响 |
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| 引用本文： | 李海富,吴明生,邹玉荣.木质素用量对乳液共沉天然橡胶性能的影响[J].特种橡胶制品,2012,33(1):23-26. |
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| 作者姓名： | 李海富 吴明生 邹玉荣 |
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| 作者单位： | 青岛科技大学 橡塑材料与工程教育部重点实验室,山东 青岛,266042 |
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| 摘 要： | 采用共沉方法制备天然橡胶/木质素复合材料,研究了复合材料和炭黑胶料的性能以及木质素用量对天然橡胶性能的影响。结果表明,加有木质素的胶料,随着木质素用量的增加,复合材料的门尼粘度逐渐上升,炭黑胶料的最低转矩(ML)增大,最高转矩(MH)下降,正硫化时间(tc90)延长,焦烧时间(ts1)缩短,炭黑分散性变差,胶料的加工安全性、耐磨性及耐老化性变差,硫化胶的定伸应力降低。当木质素用量在20份以内时,硫化胶的拉伸强度和撕裂强度提高。
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| 关 键 词： | 天然胶乳 共沉 木质素 复合材料 |
Effects of Lignin Content on Properties of Natural Rubber Composite Prepared by Latex Co-precipitation |
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| LI Hai-fu
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WU Ming-sheng
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ZOU Yu-rong.Effects of Lignin Content on Properties of Natural Rubber Composite Prepared by Latex Co-precipitation[J].Special Purpose Rubber Products,2012,33(1):23-26. |
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| Authors: | LI Hai-fu WU Ming-sheng ZOU Yu-rong |
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| Affiliation: | li hai-fu wu ming-sheng zou yu-rong |
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| Abstract: | The natural rubber/lignin composite were prepared by co-precipitation.The effects of lignin content on properties of natural rubber,the properties of the natural rubber/lignin composite and the natural rubber composite filled with carbon black were studied.The results showed that the Mooney viscosity(ML(3+4)120℃) of the composite gradually increased with the increase of lignin content,the ML increased as well as the tc90,while the MH and ts1 reduced.The dispersion effect of carbon black was bad and the composite had poor processing safety,wear resistance and aging resistance.The modulus of the vulcanizates decreased.The tensile strength and tear strength of the vulcanizates could be improved when the lignin was added within 20 phr. |
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| Keywords: | natural rubber latex co-precipitation lignin composite |
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