1) amino carboxylic modified UF resin
氨基羧酸改性脲醛树脂
2) modified urea-formaldehyde resin
改性脲醛树脂
1.
Research on a novel modified urea-formaldehyde resin with water-proof and heat-resistance;
耐水耐热型改性脲醛树脂的研制
2.
The paper introduces the decorative three-ply wood for the exhibition made by impregnating modified urea-formaldehyde resin and hot pressing,the reason that causes much flexibility of this sheet during the piling at room temperature and the inquiry about the modification of the above-mentioned urea-formaldehyde resin with an acrylic resin.
介绍由改性脲醛树脂浸胶热压工艺制得的装饰展板在存放中翘曲度变大的原因,并探讨了用丙烯酸树脂对其对性。
3) Modified UF resin
改性脲醛树脂
1.
Relationship between syntheticprocess and gluing property of modified UF resin
改性脲醛树脂合成工艺与胶合性能的关系
2.
Primary factors analysis was used in this paper to analyze the factors affected the main guidelines such as the content of free formaldehyde,the solid content and storage stability in the synthesis process of modified UF resins using starchy oxide as the modifier.
采用主因子分析法探讨了氧化淀粉改性脲醛树脂的合成工艺中,影响游离甲醛含量、固含量、贮存稳定性等技术指标的主要因素。
4) Isocyanate modified resin adhesive systems
异氰酸酯改性的脲醛树脂和酚醛树脂胶
5) alkyd modified t-octylphenolic resin
醇酸改性辛基酚醛树脂
1.
The alkyd modified t-octylphenolic resin was prepared by alcoholized linseed oil with pentaerythritol,rosin and octylphenolic resin.
亚麻油用季戊四醇醇解后与松香对辛基酚醛树脂进行改性合成了醇酸改性辛基酚醛树脂。
6) Isocyanate modified urea formaldehyde resin systems
异氰酸酯改性的脲醛树脂
补充资料：脲醛树脂
| 脲醛树脂 ure-aformaldehyde resins 尿素与甲醛反应得到的聚合物。又称脲甲醛树脂。英文缩写UF。加工成型时发生交联，制品为不溶不熔的热固性树脂。固化后的脲醛树脂颜色比酚醛树脂浅，呈半透明状，耐弱酸、弱碱，绝缘性能好，耐磨性极佳，价格便宜，但遇强酸、强碱易分解，耐候性较差。商品名Beetle。尿素与37％甲醛水溶液在酸或碱的催化下可缩聚得到线性脲醛低聚物，工业上以碱作催化剂，95℃左右反应，甲醛／尿素之摩尔比为1.5～2.0，以保证树脂能固化。反应第一步生成一和二羟甲基脲，然后羟甲基与氨基进一步缩合，得到可溶性树脂，如果用酸催化，易导致凝胶。产物需在中性条件下才能贮存。线性脲醛树脂以氯化铵为固化剂时可在室温固化。模塑粉则在130～160℃加热固化，促进剂如硫酸锌、磷酸三甲酯、草酸二乙酯等可加速固化过程。脲醛树脂主要用于制造模压塑料，制造日用生活品和电器零件，还可作板材粘合剂、纸和织物的浆料、贴面板、建筑装饰板等。由于其色浅和易于着色，制品往往色彩丰富瑰丽。 |
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条