不同材料对缺气保用轮胎支撑胶性能的影响  

Effect of Different Materials on Properties of Support Compound for Run-flat Tire

作　　者：张静 王君 黄义钢 王巧平 李治韬 ZHANG Jing;WANG Jun;HUANG Yigang;WANG Qiaoping;LI Zhitao(Qingdao Doublestar Tire Industry Co.,Ltd,Qingdao 266400,China)

机构地区：[1]青岛双星轮胎工业有限公司,山东青岛266400

出　　处：《轮胎工业》2023年第9期539-544,共6页Tire Industry

摘　　要：研究高顺式聚丁二烯复合橡胶(VCR)、炭黑、补强树脂、硫黄和促进剂对缺气保用轮胎支撑胶性能的影响。结果表明:VCR、炭黑、补强树脂、促进剂和硫黄用量的增大均可提高硫化胶的硬度和定伸应力,在一定范围内,炭黑用量的增大可提高硫化胶的拉伸强度和抗破坏能力,硫黄用量的增大则导致硫化胶的拉伸强度下降;VCR、炭黑及补强树脂用量增大在提高硫化胶硬度的同时均导致生热增大,但提高相同硬度时,VCR和炭黑胶料的生热明显低于补强树脂胶料且具有更小的终动压缩率,促进剂和硫黄用量增大在提高硫化胶硬度的同时可降低生热,减小终动压缩率;在一定范围内增大VCR或炭黑用量不会对硫化胶的耐屈挠疲劳性能产生不利影响,增大补强树脂用量可提高硫化胶的耐屈挠疲劳性能,但增大促进剂或硫黄用量会降低硫化胶的耐屈挠疲劳性能。The effect of the amount of high cis-polybutadiene rubber(VCR),carbon black,reinforcing resin,sulfur and accelerator on the properties of the support compound for run-flat tires was studied.The results showed that,the hardness and modulus of the vulcanizates increased with the increase of the amount of VCR,carbon black,reinforcing resin,accelerator and sulfur,and the tensile strength and damage resistance were improved within a certain range with the increase of the amount of carbon black,while the tensile strength decreased with the increase of the amount of sulfur.In addition,the heat build-up of the vulcanizates increased with the increase of the amount of VCR,carbon black and reinforcing resin,while the heat generation of the vulcanizates with increased amount of VCR or carbon black was significantly lower than that of the vulcanizates with increased amount of reinforcing resin when their hardness increase was the same,and the final dynamic compression ratio of the vulcanizates with more VCR or carbon black was smaller.On the contrary,the heat build-up and final dynamic compression ratio of the vulcanizates were reduced with the increase of the amount of accelerator and sulfur.Moreover,it was found that the flexural fatigue resistance of the vulcanizates was not adversely affected by increasing the amount of VCR or carbon black within a certain range,and it could be improved by increasing the amount of reinforcing resin,but it would be reduced with the increase of the amount of accelerant or sulfur.

关 键 词：VCR 炭黑 补强树脂 硫黄 促进剂 缺气保用轮胎 支撑胶 

分 类 号：TQ330.38[化学工程—橡胶工业] TQ332TQ333.2