在合成橡胶评定试验配方中采用炭黑及氧化锌品种的研究.ppt

在合成橡胶评定试验配方中采用炭黑和氧化锌品种的研究Study on Using Carbon Black and ZnO in Evaluation Experimental Formula of Synthetic Rubber;主要内容 Main content ;1、前 言 Introduction;B. 三个标准 Three standards;C.实验目的Purpose of the experiment ;D. 中国标准参比炭黑IRC4#的研制The manufacture of chinese reference carbon black IRC4# ;2 实验 Experiments;2.1 实验设备 Experimental equipment ;2.2 实验材料Experimental materials ;顺丁橡胶(BR)9000为新疆独山子公司生产; (BR)9000 is produced by Xinjiang Dushanzi Co., Ltd 天然胶为云南产1#烟片胶。 natural rubber is 1# smoke sheet rubber produced in Yunnan. 分析纯ZnO采用成都金山化学试剂有限公司生产的产品（批号090412）。 Analytical reagent ZnO is produced by Chengdu Jinshan Chemical Reagent Plant (Batch No.090412). 其余试验用一般性材料均为市售商品。 Other experimental materials are generally commercially available. ;2.3 实验配方 Experimental formula ;2.4 测试项目Test items ;由于有部分实验室在进行合成胶物理机械性能测试时，未使用橡胶专用ZnO，而是使用分析纯ZnO，本次实验同时研究了这两种ZnO对橡胶物理机械性能的影响。 analytical reagent ZnO and special ZnO for rubber ;3. 结果与讨论 Results and discussions ;3.1 IRB7和IRC4测试结果Test results of of IRB7 and IRC4 ;表2 IRB7和IRC4在SBR1500中的测试值 Table 2 The test value of IRB7 and IRC4 in SBR1500 ;测试项目 Test item ;表4 IRB7和IRC4在NR中的测试结果Table 4 The test value of IRB7 and IRC4 in NR;标准参比炭黑IRB7#和IRC4#测试值比较Standard reference black IRB7 # and IRC4 # Comparison ;2. IRB7#和IRC4#在SBR1500、 BR9000和NR中的测试值相近，都具有较高的稳定性，都适合在合成胶中作质量鉴定用标准参比炭黑。 Test value of IRB7#和IRC4# in SBR1500,BR9000 and NR is similar. Both are highly stable and suitable to be used as standard reference carbon black in quality evaluation of synthetic rubber. 3.在同等试验条件下，IRC4#填充的胶料300%定伸应力略低于IRB7#，而拉断伸长率优于IRB7#，有利于在合成橡胶中作标准参比炭黑使用。 Under the same experimental condition, filler in IRC4# has slightly lower stress at 300% elongation and better elongation at break than IRB7, facilitating it use as standard reference carbon black in synthetic rubber. ;3.3 IRB7#在SBR1500中物理性能随硫化时间的变化Variation of physical property in SBR1500 with vulcanizing time ;图1 SBR1500中拉伸强度变化图 Figure 1 Variation of tensile strength in S