亚洲综合色婷婷五月-中文字幕破解无码在线观看-一本—道久久a久久精品蜜桃-蜜臀aⅴ无码中文字字幕蜜桃-亚洲AV片无码久久五月无遮掩 -日韩一区二区三区四区在线免费视频

Modify this message : Who Invented Superplasticizer?

Promotion Infomations

Open Directory: *

Information Type: *

CompanyBrandProductSell OfferBuy OfferServicesSolutionsIndustryNews & EventsExhibitionGlossaryKnowledge BaseArticleJobsWebsite & LinksImagesDownloadVenture InvestmentBusiness CooperationSales PromotionOthers

Title: *

Details: *

The Japanese catalyst company Tsubaki Hengxiong invented the polycarboxylic acid water-reducing agent in the 1980s. Its molecular structure is no longer the same as the linear structure of the previous high-efficiency water-reducing agent. Comb-shaped molecular structure composed of chains and long polyoxyethylene side chains. Immediately afterwards, an ester-based carboxylate water-reducing agent obtained by copolymerization of alkoxy polyethylene glycol acrylate and methacrylic acid monomer was invented. It has created a new situation in the research and application of polyzhi carboxylic acid water reducer. In 1986, it was the first time to obtain the exclusive use of polycarboxylic acid high-performance water-reducing agent. In 1984, Keichi Ono of Nippon Electric Co., Ltd. synthesized carboxylic acid-based water-reducing agent using carboxylic acid-ethylene polymerization.

Upload Photo:

* (jpg , gif , png) format

Contact Infomations

Full Name: *

Email: *

Mobile:

Company:

Telephone:

Address:

Postcode:

Website:

Options

Keywords:

Period of validity:

* days

Password:*

* You can modify the message with it.

Change Password:

* Reset a New Administrative Password, if need be.

Delete the message

*