UFPR粒子改性胎面胶复合材料的抗滑性能研究

发布时间：2018-07-08 15:23

本文选题：胎面胶 + 复合材料　；参考：《青岛科技大学》2017年硕士论文

【摘要】：本文采用对丁苯橡胶乳液和丁腈橡胶乳液进行辐照硫化和喷雾干燥的方法,制备出苯乙烯(St)含量分别为26%、50%、60%的DB-26、DB-50、DB-60等三种UFPSBR粒子超细全硫化粉末丁苯橡胶粒子(UFPSBR)和丙烯腈含量为26%的DJ-26超细全硫化粉末丁腈橡胶粒子(UFPNBR),并研究了上述超细全硫化粉末橡胶粒子(UFPR)对乳聚丁苯橡胶(ESBR)/天然橡胶(NR)/炭黑胎面胶复合材料、溶聚丁苯橡胶(SSBR)/顺丁橡胶(BR)/白炭黑胎面胶复合材料)的性能影响。一方面,研究DB-50、DB-60两种UFPSBR粒子的结构、用量、交联密度对ESBR/NR/炭黑复合材料的抗滑性能的影响;另一方面,研究DB-26、DB-50、DB-60三种UFPSBR粒子和DJ-26一种UFPNBR粒子的结构、用量、极性对SSBR/BR/白炭黑复合材料的抗滑性能影响。重点探究了各种UFPR粒子对两种胎面胶复合材料的动态力学性能和表面性能的影响,进一步丰富了UFPR粒子改性ESBR/NR/炭黑、SSBR/BR/白炭黑胎面胶复合材料的抗滑性能作用机制,为制备高性能的ESBR/NR/炭黑胎面胶与SSBR/BR/白炭黑胎面胶复合材料提供新思路。物理机械性能研究表明,UFPSBR粒子可明显提高ESBR/NR/炭黑胎面胶复合材料和SSBR/BR/白炭黑胎面胶复合材料的耐磨性能(提高率达66%),同时降低UFPR/SSBR/BR/白炭黑胎面胶复合材料的压缩疲劳温升(降低率达25%),提高了汽车高速安全行驶性。动态力学性能(DMA)研究结果表明,DB-50粒子能够提高UFPR/ESBR/NR/炭黑胎面胶复合材料的抗湿滑性能,随着UFPSBR粒子添加份数、辐射剂量的增加,抗湿滑性能提高越明显;DB-2612phr、DB-5012phr、DJ-2612phr粒子可以同时提高UFPR/SSBR/BR/白炭黑胎面胶复合材料的tan?(0 oC)值,提高了胎面胶的抗湿滑性能。胎面胶复合材料的表面润湿性能研究表明,UFPSBR粒子均能改善UFPR/ESBR/NR/炭黑胎面胶复合材料的水浸润性(?减小了56 o),且随着辐射剂量的增大,水接触角增大,浸润性能下降,刺破水膜效果减小,抗湿滑性能降低。DB-26、DB-50和DB-60粒子均能明显的改善UFPR/SSBR/BR/白炭黑胎面胶复合材料的水浸润性;与此同时,UFPR/SSBR/BR/白炭黑复合材料的微观粗糙度均明显大于基体材料,刺破水膜的能力较强,提高了UFPR/SSBR/BR/白炭黑绿色胎面胶复合材料的抗湿滑性能。与此同时,UFPR/ESBR/NR/炭黑胎面胶复合材料的表面微观粗糙度越大,水接触角越小,抗湿滑性能越高。胎面胶复合材料的微观粗糙度、动静摩擦系数研究结果表明,DB-603phr可以提高UFPR/SSBR/BR/白炭黑复合材料的动摩擦系数,使复合材料的干抓着力提高,从而提高了材料的抗干滑性能。动态力学性能研究结果表明,UFPR粒子均能提高胎面胶复合材料tan?(30 oC)值,即提高了抗干滑性能,且随着辐射剂量、用量的增加,抗干滑性能提高越明显(提高率达64%);UFPSBR粒子可使UFPR/SSBR/BR/白炭黑复合材料的抗干滑性能增加,且随着苯乙烯含量的增加,抗干滑性能增加(提高率达37%)。
[Abstract]:The irradiation vulcanization and spray drying of styrene-butadiene rubber emulsion and acrylonitrile-butadiene rubber emulsion were carried out. Three kinds of UFPSBR particles (UFPSBR) and DJ-26 ultrafine vulcanized NBR particles (UFPNBR) containing 60% styrene (St) and 60% UFPSBR particles were prepared, respectively. The ultrafine vulcanized NBR particles were studied. Powder Rubber Particle (UFPR) / ESBR / NR / carbon Black tread Composites, The properties of SSBR / Br / silica tread composites were studied. On the one hand, the effects of structure, dosage and crosslinking density of DB-50 / DB-60 UFPSBR particles on the skid resistance of ESBR / NR- / carbon black composites were studied, on the other hand, the structure and amount of DB-26 DB-50 DB-60 UFPSBR particles and DJ-26 UFPNBR particles were studied. The effect of polarity on the skid resistance of SSBR / R / silica composites. The effects of various UFPR particles on the dynamic mechanical properties and surface properties of two kinds of tread composites were investigated, which further enriched the mechanism of skid resistance of ESBR / NR / carbon black SSBR / Br / silica tread composites modified by UFPR particles. A new idea is provided for the preparation of high performance ESBR / NR / carbon black tread rubber and SSBR / R / silica tread composite. The study of physical and mechanical properties shows that UFPSBR particles can significantly improve the wear resistance of ESBR / NR / carbon black tread composites and SSBR / R / silica tread composites (up to 66%), and reduce the compression fatigue of UFPRP / SSBR / BRR / silica tread composites. Temperature rise (reduction rate up to 25%), improve the speed and safety of the vehicle driving. The results of dynamic mechanical properties (DMA) show that the wet-slip resistance of UFPR-ESBR / NR- / carbon black tread composites can be improved by the addition of UFPSBR particles, and the radiation dose increases with the addition of UFPSBR particles. The higher the wet-slip resistance is, the more obvious the DJ-2612phr particles can increase the tan-( 0) value of UFPR-SSBR / silica tread rubber composite, and improve the wet-slip resistance of tread rubber. The surface wetting properties of tread rubber composites show that UFPSBR particles can improve the water wettability of UFPR-ESBR / NR / carbon black tread composites. With the increase of radiation dose, the water contact angle increased, the wetting property decreased, the effect of piercing film decreased, and the wet-slip resistance decreased. DB-26 DB-50 and DB-60 particles could obviously improve the water wettability of UFPR-SBR / Br / silica tread rubber composites. At the same time, the microcosmic roughness of UFPR-SSBR / R / silica composite is obviously higher than that of matrix material, and the ability of piercing water film is stronger, which improves the wet-slip resistance of UFPR-SSBR / SSBR / silica green tread composite. At the same time, the higher the surface roughness of UFPR-ESBR / NR / carbon black tread composite is, the smaller the water contact angle is, and the higher the wet-slip resistance of UFPR-ESBR / NR / carbon black tread composite is. The results show that the dynamic friction coefficient of UFPR-SSBR / CB / silica composites can be improved by using DB-603phr, and the dry grabbing force of the composites can be improved, thus improving the dry slip resistance of the composites. The results of dynamic mechanical properties study show that all UFPR particles can improve the tan-( 30 OC) value of the tread rubber composite, that is, the dry slip resistance is improved, and with the increase of radiation dose and dosage, The higher the dry slip resistance of UFPR / SSBR / silica composites is (64%), the higher the dry slip resistance of UFPR-SSBR / silica composites is, and with the increase of styrene content, the dry-slip resistance of UFPR-SSBR / silica composites increases (up to 37%).
【学位授予单位】：青岛科技大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TQ336.1;TB33

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