Home > News > Industry News > Melamine modified urea-formaldehyde resin introduction
News
Company News
Industry News
Contact Us
C:+8615269057636
Email:anny@sanxinwood.com
WhatsApp:+8615269057636 Contact Now
Latest News

Wood Adhesives fungicides and preservatives

http://www.muyehuagong.com/index.php?_m=mod_article&_a=article_content&article_id=169 WoodFeatures adhesive material in its production, storage and ap...

The weather

It is a little cold today, we have to keep warm, the temperature will rise tomorrow.

Paulownia tomentosa

Paulownia is popular for roadside planting and as an ornamental tree in China. It is soft and of little value when grown on plantations generally has ...

How to Make a Paulownia Kite Board

http://www.seabreeze.com.au/Articles/Kitesurfing/How-to-make-a-Paulownia-Kite-Board_5798724.aspx The above interlinkage shows how to make a paulownia ...

temperature

The temperature slowly rose up,the weather is getting warmer, this year is the twelfth lunar month sixteen beginning of spring, when the New Year is e...

Holiday News

Time flies!The new year is coming soon,but we still remember clearly about the time of last year.Our New year holiday is from January 1 to January 3...

Paulownia finger-board

Today came two customers to our factory to see paulownia finger joint board, it seems that they are very satisfied with our finger joints,they praised...

Paulownia wood board Features

Paulownia is also due to impervious smoke, moisture barrier, easy to insects, etc., in terms of daily necessities, is an ideal material for the manufa...

Paulownia tree

About two years before, Mr E bought a Paulownia tree roots in our town and took it back to their countries, taking into account the problem of soil a...

from seed to board

product

News

Melamine modified urea-formaldehyde resin introduction

Guo Network 2015-01-10 09:42:13
Solid Urea-formaldehyde resin after a structured, there are still such as hydroxy, amino, imino, carbonyl and other hydrophilic groups. With three amine modified polyurethane urea resin aim is poor water resistance, high free formaldehyde content of the reason for the presence of urea-formaldehyde resin, with a Quantitative modified melamine, urea-formaldehyde resin to improve the water resistance, dimensional stability, crack resistance, abrasion resistance and reduce the free formaldehyde content. Practice proved that melamine modified urea formaldehyde resin adhesive is put Effective method for high performance. Back in 1944, McHale on melamine urea formaldehyde resin to improve water resistance. In 1947, Delmonte to improve resistance to boiling water with melamine urea formaldehyde resin Performance, the results shown in Fig. 1. 1965 Houwink and Salomon urea formaldehyde resin, melamine resin adhesives, melamine urea formaldehyde resin adhesive co-condensation boiling water resistant capabilities Comparing the results shown in Figure 2. The figure shows that melamine modified urea-formaldehyde resin adhesive water resistance near melamine resin adhesive. Chang Jun of the resorcinol, melamine and other modifiers for comparison Comparative studies, noting with resorcinol and melamine urea formaldehyde resin modified to improve the water resistance of the most significant, but melamine modified urea formaldehyde resin bonding strength and better color finished board. The study shows that by Blomquist trimer Melamine urea formaldehyde resin modified with resorcinol stronger than the high temperature performance of its products. Kehre noted that, compared with other modifiers melamine, particleboard obtained with high dimensional stability and lower thickness swelling