螺杆钻具用高弹性模量橡胶的研究  

Study on High Elastic Modulus Rubber for Screw Drill

作　　者：宋建 罗西超 SONG Jian;LUO Xichao(Beijing Petroleum Machinery Co.,Ltd,Beijing 102206,China)

机构地区：[1]北京石油机械有限公司,北京102206

出　　处：《橡胶工业》2020年第10期773-776,共4页China Rubber Industry

基　　金：中国石油天然气集团有限公司科学研究与技术开发项目(2020F-47)。

摘　　要：通过在螺杆钻具电动机定子用橡胶配方中增添改性纳米碳化硅粉体或炭黑N440或分散预处理12687增硬树脂或调整硫黄用量来提高硫化胶弹性模量。结果表明:增添改性纳米碳化硅粉体,可延长胶料的t10和t90,增大硫黄用量,可缩短胶料的t10和t90;增添改性纳米碳化硅粉体的硫化胶的弹性模量最高,增添炭黑N440的硫化胶的弹性模量次之;增添改性纳米碳化硅粉体的硫化胶的硬度、100%定伸应力和拉伸强度最高,拉断永久变形较小,磨耗质量损失最小,满足设计要求。The elastic modulus of the vulcanized rubber could be improved by adding modified nano silicon carbide powder,carbon black N440,dispersion pretreatment 12687 hardening resin,or adjusting the amount of sulfur in the rubber formula for the motor stator of the screw drill.The results showed that,the t10 and t90 of the compound could be prolonged by adding modified nano silicon carbide powder,and the t10 and t90 of the compound would be shortened by increasing the amount of sulfur.The elastic modulus of the vulcanizate with the addition of modified nano silicon carbide powder was the highest,followed by that of the vulcanizate with carbon black N440.The hardness,modulus at 100%elongation and tensile strength of the vulcanizate with modified nano silicon carbide powder were the highest,the permanent deformation at break was small,and the abrasion loss was minimal,which met the design requirements.

关 键 词：螺杆钻具 电动机定子 丁腈橡胶 弹性模量 改性纳米碳化硅粉体 炭黑 增硬树脂 硫黄 

分 类 号：TQ336.5[化学工程—橡胶工业] TQ333.7