群发资讯网

1·In this paper, p-methylphenyl sulphonylamine was used to modify urea formaldehyde resin with low molar ratio.

2·The free formaldehyde of the urea formaldehyde resin adhesive agent is the main pollution source of artificial board.

3·A novel method for producing urea formaldehyde resin with intensive viscidity, high solid content and low toxicity is introduced in this report.

4·Macromolecule materials are added into urea formaldehyde resin to decrease its brittleness and contractility, and increase its water resistance.

5·With sulfonated melamine and urea as monomers and acids as catalysts, the synthesis of sulfonated melamine urea formaldehyde resin is carried out.

6·A new kind of grease was synthesized with octadecylamine, urea formaldehyde resin, bentonite and base oil under the condition of water as solvent.

7·The improved urea formaldehyde resin in liquid form is injected into soil. Withe cross polymer solidification happening in the soil, the soil is strengthened .

8·The new urea formaldehyde resin for plywood was developed, by using a specifically designed, advanced synthesis process with two modifiers added in its final stage.

9·The storing stability of urea formaldehyde resin adhesive with the change of PH value is researched in attempt to guide the production and imporove the application for products.

10·Base on this, the influence of urea formaldehyde resin on the water resistance of MOC was investigated through an experimental study with strength and water-resistance as evaluation indexes.