Page 102 - 《橡塑技术与装备》2020年21期(11月上半月橡胶)
P. 102

橡塑技术与装备(橡胶)                              CHINA RUBBER/PLASTICS  TECHNOLOGY  AND EQUIPMENT (RUBBER)

                                                  表 5   车间小试性能数据表
                                    项目                  正常胶            试验胶            检测标准
                            门尼黏度 [M L (1+4)100℃ ]         75             76            76±5
                           门尼焦烧时间 t 5 (130℃)/min         20.8           19.5          15.0~25.0
                          流变仪数据(150℃ ×30 min)
                                  M L (dN . m)            3.2           3.2            3.1±0.5
                                  M H (dN . m)           15.9           16.5          16.0±2.0
                                   t 10 /min              6.5           6.1           5.8±0.5
                                   T 50 /min              9.5           9.8           8.7±1.0
                                   T 90 /min             17.4           18.3          16.5±2.0
                                 硫化胶性能
                               邵尔 A 型硬度 / 度               64             65            63±3
                              10% 定伸应力 /MPa              0.81           0.83             /
                              50% 定伸应力 /MPa              1.66           1.73          1.55±0.5
                              100% 定伸应力 /MPa             2.95           3.00           2.7±1.0
                              200% 定伸应力 /MPa             7.72           7.75             /
                              300% 定伸应力 /MPa             13.30         13.63          12.0±1.5
                                拉伸强度 /MPa                17.42         19.04           ≥ 16.5
                                断裂伸长率 /%                 382            406           410±60
                                 永久变形 /%                  10             10            13±4
                               撕裂强度 /kN . m -1            35             38              /
                                   回弹 /%                  34             33              /
                                 密度 /mg . m  -3          1.141         1.141           1.140
                            阿克隆磨耗 /cm . 1.61 km  -1      0.098         0.107          ≤ 0.200
                                       3
                               炭黑分散等级 /X                  7              8              ≥ 7

                        表 6 试验轮胎耐久试验结果                         的气孔较正常胎面胶料多。
                试验累计时间 /h     44.1   试验累计里程 /km    5 368.7
                胎冠表面温度℃       51.6  花纹沟底温度 /℃       53.2
                                                               参考文献 :
                                                               [1]   Wo l f f  S,God  U, Wa n g  M J, e t  a l . Si l i c a - b a o e d  t r e a d
             了硫化,并降低了胶料加工安全性。                                      compounda[J].European Rubber Journal,1994,176(1):16.
                                                               [2]   郑涛,李民军,潘存孝,等 . 一次法混炼工艺对轮胎胎面胶性
                (3)在物理性能方面,拉伸强度、撕裂强度、断
                                                                   能的影响 [B]. 轮胎工业,2016,36(11):679-682.
             裂伸长率、硬度略提高,阿克隆磨耗量略提高,其它                           [3]   王中江,郑涛,李民军,等 .SSM 一步法炼胶工艺对胎面气孔
             的性能比较接近。1  165  MP 白炭黑的补强效果优于 1                       率的影响 [J]. 轮胎工业,2017,37(1):40-43.
             115 MP。                                           [4]   李民军,郑涛,SSM 法和传统炼胶工艺生产的胎面胶料性能
                                                                   对比 [B]. 世界橡胶工业,2016,43(5):1-11.
                (4)在胎面部件压出压延中,1 165 MP 试验胶料


              Influence of different grades of white carbon black on the performance
                                              of semi-steel tire tread


                                Ning Weiming, Jiang Yanhua, Guo Zhigang, Lu Dandan, Li Haiyan
                      (Shandong Fengyuan Tire Manufacturing Co. LTD., Zaozhuang 277300, Shandong, China)

                 Abstract: Through the analysis of the tensile strength, tear strength, elongation at break and hardness of
             different grades of silica, the results show that when 1 165 MP white carbon black is used in the compound,
             the Mooney viscosity data is better than 1 115 MP white carbon black. High specific surface area white
             carbon black delays vulcanization due to the more hydroxyl groups on its surface, which results in shorter
             scorch time, increased vulcanization time, and reduced rubber processing safety. The test data of physical
             properties show that its tensile strength, tear strength, elongation at break, and hardness are slightly increased,
             Akron abrasion is slightly increased, and other properties are relatively close. Therefore, the reinforcing effect
             of 1 165 MP white carbon black is better than that of 1115 MP.
                 Key words: 1 165 MP; white carbon black; 1 115 MP; specific surface area
                                                                                                         (R-11)

             ·50·                                                                            第 46 卷  第  21 期
   97   98   99   100   101   102   103   104   105   106   107