1) Non dewatering UF resin
不脱水脲醛树脂
2) Low toxic urea formaldehyde resin
不脱水低毒脲醛树脂
3) urea-formaldehyde resin
脲醛树脂
1.
Effects of Uron resins and using methods on the performances of urea-formaldehyde resin;
尤戎(Uron)树脂及其用法对脲醛树脂性能的影响
2.
Curing mechanism of urea-formaldehyde resin and its application.;
脲醛树脂固化机理及其应用
3.
Study on synthesis of environmental protection type urea-formaldehyde resin adhesive;
环保型脲醛树脂粘合剂合成的研究
4) urea-formaldehyde
脲醛树脂
1.
Study on experiment of urea-formaldehyde spray drying;
脲醛树脂喷雾干燥实验研究
2.
Studies on Immobilization of β-Cyclodextrin Based onto Urea-formaldehyde Resin;
固载β-环糊精脲醛树脂的合成及其性能研究
3.
Objedtive:To explore the technological conditions about preparing for microcapsules with an urea-formaldehyde resin as wall and with cypermethrin as core material.
目的:探讨以脲醛树脂为壁材,以氯氰菊酯为囊芯物制备聚脲微胶囊的工艺条件。
5) Urea formaldehyde resin
脲醛树脂
1.
Application of air-stripped free formaldehyde from urea formaldehyde resin in rotating packed bed;
旋转填料床脱除脲醛树脂中游离甲醛的应用研究
2.
Synthesis of urea formaldehyde resin——Using NaOH to adjust pH value;
脲醛树脂合成工艺的初步探讨——以NaOH为pH值调节剂的合成方法
3.
This paper introduced some updated urea formaldehyde resin technologies developed in the USA including the high efficient and low solid content resin,the fast curing,resin for core layer,the high strength resin for surface layer,and different resin technologies with low formaldehyde emission developed at Hexion Specialty Chemicals Inc.
介绍瀚森化工公司高效能低固体含量脲醛树脂、快速固化芯层用脲醛树脂、高强度表层用脲醛树脂和低毒脲醛树脂技术。
6) urea resin
脲醛树脂
1.
Quantitative analysis of free formaldehyde content in urea resin by gas chromatography;
脲醛树脂中游离甲醛气相色谱的分析
2.
Mole ratio is the key factor that influenced the formal de hyde content of urea resin.
在制胶过程中 ,进行了 3种摩尔比试验 ,结果表明 ,摩尔比对脲醛树脂中甲醛含量影响极大 ,低摩尔比的脲醛树脂其游离甲醛含量低 ,用其生产的人造板产品 ,甲醛释放量也低 ,符合环保产品的标准。
3.
Magnesium oxychloride cement was modified with urea resin composite additive, the influences of additive content on the properties of cement article and the mechanism of waterproof modification were studied in this paper.
采用脲醛树脂复合外加剂 ,对氯氧镁水泥进行耐水改性 ,探讨了外加剂掺量对制品性能的影响及耐水改性机理。
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