亚洲AV无码国产综合专区,亚洲午夜无码久久久久,欧美精品九九99久久在免费线

<ruby id="tot6d"><bdo id="tot6d"></bdo></ruby>
  • <tr id="tot6d"></tr>
  • <del id="tot6d"><small id="tot6d"></small></del>
    <strike id="tot6d"></strike>

  • <nav id="tot6d"></nav>

    <u id="tot6d"><sub id="tot6d"></sub></u>
    <source id="tot6d"><sub id="tot6d"><tbody id="tot6d"></tbody></sub></source>

    Contact Us
    For More Information Call

    0086-13968730831

    Add:26th Lingyun road,Liushi Town,Yueqing City,Zhejiang Province,China

    E-mail:info@jxnele.com

    Nylon cable ties new breakthroughs do not break the nylon cable ties

    2016-11-30  Browse:779
    Winter to, we all know that this thing to the plastic after the winter will become very brittle, what is the reason?

    Plastic is the main component of macromolecular aggregates, macromolecules characterized by low temperature when the slow movement, high temperature, fast movement. In the winter, the molecular movement is slow, when the plastic by external force, the object deformation, due to molecular motion is slow, external force is not easy to pass away (equalize internal stress) or consumed (molecular chain friction), so prone to stress concentration, When the internal stress to a certain extent, the macromolecules on the broken, triggering cracks, cracks will be cited stress concentration and dissemination of plastic on the broken.

    Approach: In general, a small amount of moisture injected into the bag can reduce the fracture
    Back to Home
    亚洲AV无码国产综合专区,亚洲午夜无码久久久久,欧美精品九九99久久在免费线