日精品,中国一区同人本子在线无码,√天堂中文www 在线,日韩欧美一二区

Favorite |   GuestBook |   Contact Us  |   ENGLISH  |   CHINESE

Welcome DEZHOU?ZHONGCHUANG?COMPOSITE?MATERIAL?CO.,LTD HomePage!

DEZHOU?ZHONGCHUANG?COMPOSITE?MATERIAL?CO.,LTD
DEZHOU ZHONGCHUANG ENVIRON PROTECTION CO.,LTD

Serive Tel15806862636

Hot KeyWords: carbon fibre,Wind turbine blade,Auto parts,FRP mold,Vacuum forming auxiliary material
CONTACT US
Tel:+86-534-6037681
    DEZHOU?ZHONGCHUANG?COMPOSITE?MATERIAL?CO.,LTD
    Addr:NO.2,HONGRI?LOGISTICS?PARK,DEZHOU,SHANDONG
    DEZHOU ZHONGCHUANG ENVIRON PROTECTION CO.,LTD
    Addr:WORKSHOP 1,DEYI AVENUE,CHONGDE,DEZHOU,SHANDONG
    Mr:Manager Feng
    Mobi:15806862636
    Tel:+86-534-6037681
    Fax:+86-534-6037681
    Email:1144745498@qq.com
Current Location:Home » IndustryNews IndustryNews
Development history of polymer composites
Date:2019-10-19 Hits:

Since the 19th century, human beings began to use modified natural polymer materials. Cremated rubber and nitrocellulose plastics (Celluloid) are two typical examples.

After entering the 20th century, polymer materials have entered a stage of great development. First, in 1907, Leo bakeland invented phenolic plastics. In 1920 Hermann Staudinger put forward the concept of polymer and coined the word makromolekule. In the late 1920s, PVC began to be widely used. In the early 1930s, polystyrene began to be produced on a large scale. In the late 1930s, nylon began to be produced.

With the development of modernization of industrial enterprises, the scale and automation degree of equipment cluster are getting higher and higher. At the same time, the requirements for safe and continuous production of equipment are also getting higher and higher. The traditional equipment maintenance technology based on metal repair method is far from meeting the maintenance requirements for more high-tech equipment, which needs to be developed more for equipment prevention and on-site solution. New technologies and materials, including polymer composite materials, have emerged more new maintenance technologies and materials, so as to solve more problems and meet the maintenance requirements of new equipment operation environment.

After the great development of the 20th century, polymer materials have an important impact on the face of the whole world. Time magazine believes that plastic is the most important invention of the 20th century. Polymer materials have also had an important impact in the field of culture and human life style.

Serive Tel
15806862636
+86-534-6037681

WxChat

DEZHOU?ZHONGCHUANG?COMPOSITE?MATERIAL?CO.,LTD  
Address:NO.2,HONGRI?LOGISTICS?PARK,DEZHOU,SHANDONG
DEZHOU ZHONGCHUANG ENVIRONMENTAL PROTECTION TECHNOLOGY CO., LTD
Address:WORKSHOP 1,DEYI AVENUE,CHONGDE,DEZHOU,SHANDONG
Tel:+86-534-6037681  Fax:+86-534-6037681  E-Mail:1144745498@qq.com
CopyRight©2014-2025 Update:2025-03-17 

国产被操bb视频| 4444精品影院| 成人亚洲国产精品一区不卡| 日韩少妇AV在线不卡中文| 丁香六月中文| 正在播放国产精品久久| 亚洲欧美在线观看视频| 熟妇人妻久久中文字幕无码| 国产精品视频分类精品| 狠狠干狠狠操_| 一本大道日韩无码| 免费无码又爽又刺激网站| 亚洲欧洲黄片在线看| 丁香五香天堂综合小说| 久久丝袜综合网性色AV| 无码不卡超清| 久久久kpd| 国产一久久香蕉国产线看观看| 欧美日韩精品123| 成人无码久久一区二区三区| 99久久国产视频| 国庆假期人比趵突泉里的鱼还多| 伊人亚洲丁香| 成人国产精品免费网站| 日韩精品无码一区二区三区中文| 免费一级毛片观看| 精久久免费视频| 人妻精品动漫H无码| 999国产精品永久免费| 成年人黄色网址| 国产真实老熟女91| 狠狠色丁香久久婷婷综合五月| 在线播放亚洲永久精品ww47| 亚洲人成网线在线播放| 岛国av无码专区免费看| 精品人妻无码区在线视频| 在线亚洲韩国日本一区视频| 国产日本欧美一区二区bt下载| 日韩一区激情免费视频| 亚洲无码中文字幕综合| 性高潮久久久久久97|