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

用对甲基苯磺酰胺改性低克分子比的脲醛树脂。

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

尿醛树脂胶粘剂中的游离甲醛是人造板中主要的污染源。

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

介绍一种粘结强度大、固含量高、低毒环保型的脲醛树脂粘合剂的合成方法。

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

在脲醛树酯中加入其它高分子材料，降低其脆性和收缩性，提高其耐水性。

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

以磺化三聚氰胺和尿素为单体，在酸催化下，合成磺化三聚氰胺尿素甲醛树脂。

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

以十八胺、脲醛树脂、膨润土、基础油为原料在水为溶剂条件下合成了一种新型润滑脂。

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 .

将改性脲醛树酯以液态的形式掺入土中，使聚合物在土中进行交链固化，从而实现对土体的加固。

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.

此种新开发的脲醛树脂，采用特定的先进合成工艺和加入两种改性剂研制而成。

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.

对脲醛树脂胶的贮存稳定性随p H值的变化进行研究，以指导生产，提高产品的适用。

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.

在此基础上，本文通过试验研究，以氯氧镁水泥的试块强度和耐水性为指标，探讨脲醛树脂对氯氧镁水泥耐水性的影响。