高性能环氧树脂涂料固化剂

通过对几种常用环氧树脂常温固化剂性能的比较和应用结果表明,以天然腰果壳油合成的长链的取代酚醛胺固化剂,具有优异的综合防护性能,是环氧树脂高性能化的一种途径。     

Efficient curing of high performance coatings using high peak irradiance uv light

Conclusions  The result from the study indicate:

环氧树脂涂料用脂肪族二胺加成物固化剂

介绍了一类性能独特的脂肪族和脂环族二胺加成物环氧固化剂,其毒性低、气味小。用其制备的涂料具有良好的耐化学腐蚀性、高硬度和良好的光泽性。     

聚异氰酸酯固化剂在热固性氟粉末涂料中的应用

探讨了聚异氰酸酯固化剂交联反应机理。介绍了热固性氟粉末涂料的制备,分析了选择不同类型的聚异氰酸酯固化剂对热固性氟粉末涂膜性能的影响,从而制得了综合性能优异的热固性氟粉末涂料。     

聚氨酯粉末涂料树脂及固化剂的选择

讨论了树脂、固化剂、助剂以及工艺条件对聚氨酯粉末涂料涂膜性能的影响及选择,最终得到了最优化的配方方案。     

改性胺固化剂对防腐涂料的影响

利用缩水甘油醚和二乙烯三胺制得端氨基环氧-胺加成物作为固化剂,采用扫描电镜探讨了不同类型固化剂对涂层乳液粒径、表观形貌的影响;利用交流阻抗技术研究了不同固化剂对涂层耐蚀性的影响。结果表明:共混封端的固化剂的乳化性能较好,乳液的平均粒径较小,其制备的涂层耐蚀性最好。     

High performance waterborne coatings based on dispersions of a solid epoxy resin and an amine-functional curing agent

A novel, waterborne epoxy system comprised of non-ionic stabilized dispersions of a solid epoxy resin and an amine curing agent has been designed for ambient-cure coatings. The performance characteristics of coatings formulated from the new system have been compared to a standard system. The new system produced formulated coatings with robust performance over a wide range of amine-to-epoxy stoichiometries (65 to 130%). At 100% stoichiometry, the new system was found to have lower VOC, faster hardness development, better gloss, and higher impact resistance than the standard system. The new formulations also exhibited superior water and salt spray resistance, and a definitive viscosity rise at the end of potlife. Unlike the standard system, coating morphology of the new waterborne system was found to be similar to a solvent-based coating. For the new system, good coalescing solvents, as judged by gloss and gloss potlife, were found to have low solubility parameters and high boiling points. Presented at the 76th Annual Meeting of the Federation of Societies for Coatings Technology, on October 15, 1998, in New Orleans, LA. P.O. Box 1380, Houston, TX 77251-1380.     

交联剂在室温固化双组分水性涂料中的应用

用多异氰酸酯型、氮丙啶型和环氧基型三种室温固化交联剂分别固化丙烯酸聚氨酯分散体水性涂料,测定并比较了交联涂膜的性能。结果发现,环氧型交联剂固化的产物综合性能最好,主要表现在涂膜硬度、附着力、耐水性、耐溶剂性、耐污渍性和耐烫性上比未交联涂料和其他两种交联剂固化的涂料要好得多。此外,配漆后的适用期很长,施工方便程度类似于单组分涂料。     

环氧粉末涂料低温固化剂的合成及应用

以4,4-二苯基甲烷二异氰酸酯(MD I)和3-二甲基氨基丙胺为原料,合成了一种有机脲类低温固化剂二苯基甲烷-4,4-二[N,N-二甲氨基丙脲],并改进了粉末涂料的生产工艺,使环氧粉末涂料在低温下实现完全固化。环氧粉末涂料中加入11%有机脲类固化剂,可以在130℃8 min和140℃4 min的条件下实现完全固化,使粉末涂料应用于塑料制品、纸张、纸板及木材等热敏性基材的表面涂膜成为可能。     

High performance coatings based on novel penetrative curing: Cationic electrodeposition coatings cured at ambient temperature

Cationic electrodeposition coatings were cured with a penetrative crosslinker at ambient temperature. This method is based on a novel technology in which coating films are dipped in aqueous crosslinker solution which moves into the film, accompanied by crosslinking. Pencil hardness, impact strength, solvent resistance and water resistance were improved with dipping time, that is, with the penetration of crosslinking. On the contrary, corrosion resistance was controlled by two opposing factors arising from the crosslinking—strengthening of the coating barrier property and weakening of the adhesion force. Excellent protective coatings were obtained by selection of resins and control of crosslinking. This system is well suited for the coatings on huge, complex structures in finished condition incorporated with glass, plastic, etc. 17-1, Higashi Yawata 4-Chome, Hiratsuka-Shi, 254.     

辐射固化涂料

0506093 可UV固化的底涂组合物、用于金属涂覆的底涂膜形成方法及汽车用的车灯反射镜；0506094 光催化涂料，“Frescera P”；0506095 100％UV固化涂料的最佳消光效应；0506096 木器涂料用UV固化水分散体；0506097 可辐射固化的组合物及其涂层形成方法……     

辐射固化涂料

光固化和稳定的涂料及其制法：WO2004—99 302，UV固化涂料的均匀固化及其辐射设备：JP2004—244 474，户外耐候可光聚合涂料、涂料制备及涂覆的物件或设备：US2004—242 735，可辐射固化环氧(甲基)丙烯酸酯组合物的制备：WO2004—92 289，具有良好耐久性和贮存稳定性的可辐射固化树脂组合物：WO2004—55 091……     

辐射固化涂料

通过UV固化低聚物助剂网络体系控制清漆原位流变性：US2004—151 843[美国专利申请公开]，美国：Ford Global．Technologies，Inc．(Weingartz，Timothy P)．聚光灯中UV固化氨基甲酸酯丙烯酸酯[刊，英]／Fischer．Wolfgang等／／European Coatings Journal ．可辐射固化液态树脂组合物及其涂布的光纤：JP2004-182 860[日本专利公开]，日本：Shin-Etsu Chemical Industry Co．，Ltd．(Ueno，Masaya等)．UV固化涂料组合物：JP2004-224 961[日本专利公开]，日本：Dainippon Ink and Chemicals，Inc．(Takayanagi．Yasuo)．     

辐射固化涂料

生产二轮车用UV固化涂料和设备；UV固化汽车清漆的交替固化法；耐热光固化底漆和带有这种底漆层的金属闪光物品；辐射固化涂料用水性非离子稳定环氧树脂组合物；辐射固化组合物、耐划伤固化膜的形成、固化产物及防反射材料；     

辐射固化涂料

0502081 含有羟基胺酯引发剂的涂料组合物及IR／UV固化涂层：WO2004-81 100[国际专利申请，英]／瑞士：Ciba Specialty Chemicals Holding Inc．(Wolf，Jean-Piece等)；0502082 用于可固化作为耐污改性剂的热稳定型光固化组合物：JP2004-168 896[日本专利公开]／日本：Asahi Glass Co．，Ltd．(Futami，Tatsuhiro等)；0502083 UV固化聚合物组合物及其涂装的光盘：JP2004-256 681[日本专利公开]／日本：Dainippon Ink and Chemicals，Inc．(Saito，Koichi等)；0502084 UV固化热熔融胶粘剂：WO2004-83 302[国际专利申请，德]／瑞士：Collano Ag(Christelle等）；0502085 贮存稳定性和附着力优异的热固性可辐射固化的树脂组合物及其固化工艺：JP2004-285 119[日本专利公开]／日本：Arakawa Chemical Industries，Ltd．(Konda，Masaaki等)。