欧美日韩视频精品一区二区,手机看片久久高清国产日韩,日韩中文字幕在线亚洲一区,亚洲国产日韩无在线播放,2015日韩永久免费视频播放,亚洲欧美专区精品伊人久久,色综合久久天天综合观看

0086 391 3299607

TECHNICAL

2Plastic refining characteristics of several common rubber

Release:emykpehf View:1399

1: natural rubber and natural rubber more easy to obtain plasticity. The initial viscosity of low viscosity and low viscosity standard maleic rubber is generally not required to be refined. If other types of standard rubber Mooney viscosity is greater than 60, will still be plastication. Natural rubber mixing machine mixing, roller temperature is 30 DEG -40 DEG, time is about 15-20min. When the temperature reached 120 degrees Celsius, the time was about 3-5min. When the addition of plasticizer or plastic solution

2: natural rubber and natural rubber more easy to obtain plasticity. The initial viscosity of low viscosity and low viscosity standard maleic rubber is generally not required to be refined. If other types of standard rubber Mooney viscosity is greater than 60, will still be plastication. Natural rubber mixing machine mixing, roller temperature is 30 DEG -40 DEG, time is about 15-20min. When the temperature reached 120 degrees Celsius, the time was about 3-5min. When the addition of plasticizer or plastic solution


Recommended Information

  • Telephone
  • message
    Message
  • map
    Map
  • ewm
    QR code