β－羟烷基酰胺（SA552）的合成及其应用

β－羟烷基酰胺是聚酯粉末涂料一种新的高效无毒固化剂。文章简介了β－羟烷基酰胺的制备方法及在粉末涂料中的应用试验，结果表明可替代传统的ＴＧＩＣ固化剂。     

β—羟烷基酰胺（SA552）的合成及其应用

β－羟烷基酰胺是聚酯粉末涂料一种新的高效无毒固化剂。文章简介了β－羟烷基酰胺的制备方法及在粉末涂料中的应用试验，结果表明可替代传统的ＴＧＩＣ固化剂。     

羟烷基酰胺的合成与应用进展

粉末涂料具有环保、经济、性能卓越的优点，目前受到涂料界的广泛关注，其在家用电器、汽车、机械等领域的应用越来越广。羟烷基酰胺作为一种粉末涂料用固化剂，可用于羧基聚酯粉末涂料的固化。与异氰脲酸三缩水甘油酯（TGIC）固化剂相比，二者固化涂膜的性能相当，但羟烷基酰胺毒性低、反应活性和储存稳定性好且涂膜可低温固化，因此羟烷基酰胺有可能逐步取代TGIC。羟烷基酰胺的合成方法有多条途径，其中以二元羧酸酯与醇胺经氨解反应和酰氯与醇胺经氨解反应为主。在系统综述羟烷基酰胺合成方法基础上，简述了其在粉末涂料方面的应用进展。     

户外粉末涂料用羟烷基酰胺研究进展

介绍并比较了户外粉末涂料用固化剂TGIC的替代产品的优缺点以及羟烷基酰胺（Primid）的市场状况、合成方法、化学性能，包括其用于粉末涂料的改进品种。重点介绍了羟烷基酰胺体系粉末涂料的消光方法和提高其脱气性能的方法。     

耐候型聚酯粉末涂料固化剂的研究进展

介绍了市场上主要的聚酯粉末涂料固化剂,对比了异氰脲酸三缩水甘油酯、国产β-羟烷基酰胺类固化剂和均苯三甲酸三缩水甘油酯固化剂制备的涂层性能,探讨了未来粉末涂料用固化剂发展的新趋势.     

聚酯／β—羟烷基酰胺粉末涂料

本文较深入地讨论了聚酯／β－羟烷基酰胺粉末涂料的化学。描述了β－羟烷基酰胺和羟基化合物间反应的基本化学原理及其对β－羟烷基酰胺作羧基聚酯交联剂的实用意义,给出了用该体系的单体模型物质所得的β－羟烷基酰胺酯的耐ＵＶ性和耐水解性结果,并证实了聚酯／β－羟烷基酰胺体系实用于户外耐久粉末涂料中基料的有效性。     

HAA在耐候粉末涂料中的应用

介绍了异氰脲酸三缩水甘油酯(TGIC)用作羧基聚酯粉末涂料固化剂时的缺点,指出羟烷基酰胺(HAA)取代TGIC是耐候粉末涂料的发展趋势,讨论了HAA粉末涂料的优缺点以及制造与应用中的注意事项。     

新型固化剂β-羟烷基酰胺的合成与表征

以对苯二甲酸(PTA)和氯化亚砜(SOCl2)为原料在相转移催化剂的作用下合成了对苯二甲酰氯(TPC),再将TPC与乙醇胺反应制备了β-羟烷基酰胺N1,N4-二(2-羟乙基)-对苯二甲酰胺(BAET)。通过红外光谱、核磁共振氢谱、DSC及TG分析对产物的结构和性能进行了研究。结果表明,合成物为目标产物;BAET熔融过程出现熔融双峰(结晶不完善所致);BAET的热分解温度为299℃,是一种优良的耐热型固化剂。     

羟烷基酰胺体系低温固化超耐候粉末涂料用聚酯树脂的合成研究

为克服聚酯树脂的性能缺陷,进一步提升羟烷基酰胺体系超耐候粉末涂料的耐候性能,使用溶液聚合制备环氧基丙烯酸酯预聚物,通过研究丙烯酸预聚物环氧值、用量对改性聚酯性能的影响,考察酸解剂对聚酯性能的作用,采用酯化缩聚工艺设计并制备出适用于羟烷基酰胺（ Primid）体系低温固化超耐候粉末涂料的新型聚酯树脂。结果表明：合成的新型聚酯具有高反应活性, 160 ℃固化涂层可兼顾耐冲击性和流平效果,涂料同时具有优异的贮存稳定性和突出的超耐候性。     

聚酯/TGIC型与聚酯/HAA型粉末涂层机械性能对比研究

采用同一聚酯树脂按当量比分别与异氰脲酸三缩水甘油酯(TGIC)、羟烷基酰胺(HAA)两种固化剂制备粉末涂料涂层,用冲击实验、杯突实验、T弯实验、电子万能试验机和动态热机械分析仪等实验方法对涂层力学性能进行研究,结果发现,TGIC体系粉末涂层的刚性要大于HAA体系涂层,但两者的力学性能基本一致。     

增强三元乙丙橡胶粘合性能的研究

研究烷基酚醛树脂用量、硫化剂DCP/TAIC用量比、增塑剂用量以及硫化工艺对三元乙丙橡胶(EPDM)粘合性能的影响。结果表明:烷基酚醛树脂可提高EPDM与聚酯线绳的粘合性能;随硫化剂DCP/TAIC用量比增大,EPDM与聚酯线绳的粘合性能先提高后保持不变,用量比为9/1时综合性能最佳;EPDM与聚酯线绳的粘合性能随增塑剂2280用量增大几乎呈线性下降趋势;在充分硫化情况下,低温长时间硫化和高温快速硫化工艺对粘合性能影响不大,为提高生产效率,EPDM汽车多楔带可采用高温快速硫化工艺。     

氟改性粉末涂料的研制

主要介绍了氟改性粉末涂料的两种试验路线：羟氨基反应是羟基树脂用氨基固化剂进行固化：羟羧基反应是用羟基氟树脂、羧基聚酯和异氰脲醛三缩水甘油酯（TGIC）进行固化。同时与国外同类产品进行了性价比较。     

纯聚酯户外消光粉末涂料的制备

以高黏度、低酸值的含羧基饱和聚酯树脂为基料,以含有缩水甘油基的丙烯酸树脂为消光固化剂制备纯聚酯户外消光粉末涂料。介绍了该涂料的制备工艺,并讨论了原材料和生产条件对产品性能的影响。     

Role of functionalized terminal groups in formation of nanofibrillar morphology of hyperbranched polyesters

A series of amphiphilic hyperbranched polymers with a polyester-polyol core and 64 terminal hydroxyl groups were modified by substituting various terminal groups: alkyl tails, amino, and carboxyl groups. The effect of the pendant groups' chemical composition on the resulting surface morphology within Langmuir-Blodgett monolayers with respect to their ability to form nanofibrillar surface structures was investigated. We demonstrated that the amphiphilicity of the polyester core with 64 hydroxyl groups can be achieved if a fraction of alkyl tails (C15) is higher than 1/4. Nanofibrillar morphology was consistently formed as the highly polar functional groups were added to the polyester cores in combination with a significant (>30%) fraction of alkyl terminal groups. Addition of amino end groups was observed to be much more effective in promoting the nanofibrillar assembly than the addition of carboxyl end groups.     

β-烷基酰胺低温固化粉末涂料用聚酯树脂的合成研究

研究了合成β-羟烷基酰胺低温固化耐候粉末涂料用聚酯树脂的配方,讨论了不同单体对树脂Tg、反应性及粉末涂料涂层的机械性能和涂层其他性能的影响。     

海洋操作平台钢结构用防护涂料的制备与性能

以聚己内酯、新戊二醇与顺丁烯二酸酐合成了聚酯树脂,然后与六亚甲基二异氰酸酯(HDI)反应以提高支化度,引入有机硅后再同丙烯酸单体反应制得丙烯酸改性聚酯树脂。以此丙烯酸改性聚酯树脂和适量的颜填料为甲组分、拜耳3390固化剂为乙组分,开发了适用于海洋气候的钢结构表面防护涂层。研究了顺丁烯二酸酐含量、丙烯酸改性聚酯树脂羟基含量、n(─NCO)∶n(─OH)值和聚合条件对面漆性能的影响。当顺丁烯二酸酐的用量为聚酯树脂的5%,自制的丙烯酸改性聚酯树脂羟基含量为4.5%±0.3%,n(─NCO)∶n(─OH)=1.1~1.4时,所制备的丙烯酸改性聚酯树脂面漆配以环氧富锌底漆及环氧云母氧化铁中涂漆得到的涂层体系能够满足海上平台钢结构的防护要求。     

Study on film forming organo-copper polymer

Film forming organo-copper polymer was synthesized from diethanol amine. The organo-copper polymer (copper salt of polyester amide) contains long chain amide in the side group. The intermediates and the final products were characterized for chemical structure, molecular weight, copper content, curing and thermal properties of cured resin. Organo-copper polymer was used as soluble resin to formulate a coating. Mechanical strength and leaching behavior of the coating were studied. The coating was found to be self-polishing in nature.     

Study on film forming organo-copper polymer

Film forming organo-copper polymer was synthesized from diethanol amine. The organo-copper polymer (copper salt of polyester amide) contains long chain amide in the side group. The intermediates and the final products were characterized for chemical structure, molecular weight, copper content, curing and thermal properties of cured resin. Organo-copper polymer was used as soluble resin to formulate a coating. Mechanical strength and leaching behavior of the coating were studied. The coating was found to be self-polishing in nature.     

Novel crosslinking system with hydroxyl-containing polymer, alicyclic polyepoxide and polyalkoxysilane

The crosslinking system based on the reaction among alicyclic epoxide group, hydroxyl group and alkoxysilyl group in the presence of aluminum β-diketone chelate have been developed. Five kinds of reaction are possible, and the result of gas chromatography and infrared analyses indicated that the main reaction is the ring-opening reaction of alicyclic epoxide group with hydroxyl group and/or hydroxysilyl group. The acrylic resin obtained by free radical polymerization of these three kinds of functional monomers and non-functional monomers showed good curing property, and the film was superior in acid rain resistance and outdoor durability. The resin is suitable to use in automotive 2coat–1bake clear coat. The viscosity of this binder system was remarkably reduced by addition of a low molecular weight alicyclic polyepoxide compound and an alkoxysilane oligomer without affecting to its good curing property. Such a system made it possible to design novel high solid coatings. It was found that the crosslinking could be extended to the combination of a polyester polyol, an alicyclic epoxide compound and an alkoxysilane oligomer. In this case, it was necessary that the polyester polyol contained highly reactive terminal hydroxyl group in the branch chains.     

Synthesis of hyperbranched polyester‐amides and their application as crosslinkers for polyurethane curing systems

A series of hyperbranched polyester‐amides (S1, S2, S3) with trimethylolpropane as a core molecule were synthesized using core‐dilution/slow monomer addition strategy. The products were characterized by FTIR, ¹³C NMR, GPC, TGA, hydroxyl value measurement, and viscosity measurement. The result showed that the hyperbranched polyester‐amides synthesized had narrow molecular weight distribution and high degree of branching (DB). The hyperbranched polyester‐amides synthesized were used as crosslinkers for polyurethane curing systems and the mechanical properties of the polyurethane curing systems were investigated. It was found that the best tensile property and tear strength were obtained when the S2 were used as crosslinkers and the molar ratio of  OH and  NCO was 1 : 1. It was also found that the polyurethane curing systems had the highest hardness and T_g when the S3 were used as crosslinkers. © 2011 Wiley Periodicals, Inc. J Appl Polym Sci, 2011