抗碱封闭底漆对外墙涂料耐候性的影响因素

探讨抗碱封闭底漆对外墙涂料耐候性的影响因素，重点讨论基料的选择对性能的影响；阴离子、阳离子乳液型底漆；有机、无机复合乳液底漆及颜填料的添加对底漆性能的影响。     

卷材用环氧聚氨酯底漆的研制

介绍了一种采用部分封闭的聚氨酯改性环氧树脂制备可自交联的卷材底漆用树脂的方法。探讨了聚氨酯和聚酰胺的用量对底漆性能的影响。研究了底漆固化程度对面漆性能的影响。     

高性能水性双组分环氧底漆的研制

利用商业化的环氧乳液与聚酰胺固化剂为主要原料设计配方,制备了高性能水性双组分环氧底漆。在试验中分析考察了双组分环氧底漆两组分配比对其防腐蚀性能的影响;同时通过对不同底漆配方的耐盐雾性能测试,研究分析了配方中颜料体积浓度对底漆防护性能的影响。     

水性无机富锌底漆的研究及几种富锌底漆的比较

介绍了影响无机富锌底漆性能的因素,并对几种富锌底漆性能进行了对比。     

厚涂底漆的制备

简介了厚涂底漆的配方和性能,探讨了基料、助剂、粉体、溶剂的配比及用量对厚涂底漆性能的影响。     

新型汽车底漆生产工艺及配方设计

根据汽车底漆的性能和市场要求,研究了以环氧树脂、饱和聚酯树脂和聚氨酯树脂复合作为成膜物,并讨论了颜料、填料及助剂对底漆性能的影响,从而设计出投资少,成本适中,性能优异的新的汽车底漆生产配方和工艺。     

预涂卷材用耐水煮环氧底漆的研制

研制了预涂卷材用耐水煮环氧底漆,探讨了环氧底漆中固化剂、功能助剂和基板等因素对漆膜耐水煮性能的影响。研究结果表明:漆膜的水煮性能主要取决于底漆,同时与基板的类型也有一定的关系。     

环境友好型金属耐腐蚀乳胶底漆的研制

研制了一种环境友好型防腐蚀乳胶底漆，其成分对环境无污染。讨论了颜料种类、颜基比、成膜助剂等对底漆性能的影响，确定了三聚磷酸二氢铝耐腐蚀乳胶底漆的配方和合成工艺。     

高性能醇溶性无机富锌涂料的研制

主要研究了无机硅酸锌底漆的制备工艺,并通过调整水解度,使用不同的树脂加以改性。使用各种试验测试手段对涂膜性能进行了分析检测,并讨论了不同制备工艺对涂膜性能的影响,最终得到涂膜的各项性能完全达到车间底漆和长效防腐底漆的要求。     

汽车用磁性氧化铁环氧底漆

用环氧树脂、磁性氧化铁和固化剂研制成磁性氧化铁环氧底漆。该底漆具有无毒、低温固化、性能好等特点,是一种价廉质优的汽车底漆。介绍了底漆的配方、生产工艺,并列举了漆的各项性能指标。讨论了影响底漆性能的诸因素。     

单罐装聚氨酯底漆的制备及应用

介绍了采用一种新型复合封端异氰酸酯制备高性能单罐装聚氨酯底漆的研制过程及其应用前景。讨论了封端异氰酸酯、含羟基树脂、助剂等对漆膜性能的影响。     

一种聚氨酯密封胶底涂剂的研制

以低相对分子质量的聚酯多元醇、异氰酸酯三聚体、含活性氢的硅烷偶联剂为原料,合成了一种用于促进汽车挡风玻璃与聚氨酯密封胶密封粘接的底涂剂,探讨了聚酯多元醇合成的预聚体加入量和硅烷偶联剂加入量对底涂剂性能的影响。结果表明,制成的底涂剂有较快的表干时间,并对玻璃基材和聚氨酯密封胶都具有优异的粘接力。     

水性聚氨酯底胶的研究

采用水性聚氨酯分散体作为PVDC乳液的底胶（底涂剂）,研究了聚合物多元醇、异氰酸酯、封端剂、润湿剂等对涂膜性能的影响,确定了以苯酐-己二酸聚酯多元醇、TDI／MDI混合并氰酸酯、BDO等为主要原材料合成了水性底胶,实验结果表明,该底胶的各项性能完全达到溶剂型底胶的性能要求,且以水为稀释剂大大降低了原材料成本,同时有利于环保。     

Chemical interactions in the system anodized aluminum—primer—adhesive

Chemical interactions in the primed aluminium/adhesive interphase were examined using IR reflectance spectroscopy. For the case of epoxy primers and polyurethane adhesives, a new absorption was detected and was attributed to an isocyanate group, formed by reaction between the epoxide primer and the polyurethane adhesive. When polyurethane adhesive was applied on a polyurethane primer, such a primer-adhesive interaction was not noticed.     

3D立体幻影涂料的配方设计

采用羟基丙烯酸树脂和异氰酸酯固化剂,添加3D立体魔幻剂和附着力促进剂,获得了3D立体幻影涂料底漆,搭配丙烯酸聚氨酯面漆,研制出3D立体幻影涂料.讨论了树脂、3D立体魔幻剂、附着力促进荆、防沉剂等对涂料性能的影响.根据配方得到的涂膜综合性能良好,具有优美的立体效果.     

Surface Chemical Study of Sheet Molded Composite (SMC) as Related to Adhesion

Surfaces of commercial sheet molded composite (SMC) materials have been characterized by X-ray photoelectron spectroscopy (XPS) before and after various surface treatments. Surface treatments included cleaning with methylene chloride, abrasion using methylene chloride and a Scotch Brite ® abrasive pad, and application of an isocyanate primer. The pretreated SMC materials were bonded using a polyurethane adhesive. Bonded coupons were tested under a variety of conditions using the lap shear technique. Lap shear test results for specimens bonded following the abrasion and primer pretreatment indicated a favorable fracture force and mode of failure. Surface analysis studies were used to characterize the pretreated and failed surfaces.     

工业用改性环氧低表面处理底漆的研制

合成一种分子结构较大的异氰酸酯组分,作为环氧防腐底漆的固化剂,用于改性环氧底漆,使涂膜具有聚氨酯的柔韧性和环氧树脂的附着力,配以磷酸盐活性防锈颜料,使该防锈涂料具有良好的防锈性能、高度的弹性和柔韧性、优异的附着力,用于低表面处理的钢铁表面,可直接刷涂在旧的涂膜上,对底材处理不彻底的钢铁表面也表现出优异的防腐性能。     

Dual cure (UV/thermal) primers for composite substrates—Effect of surface treatment and primer composition on adhesion

It can be concluded by the study of UV primer formulations on sheet molding compound (SMC) substrates that all studied formulation parameters affect adhesion. Moreover, the dual cure approach can result in acceptable adhesion of UV primers on SMC substrates if the coating procedure and composition are well designed. Adhesion of UV cure primers as determined by the cross-cut test is significantly improved in formulations containing solvent. This is a result of enhanced wetting and interaction of the solvent with the SMC substrate, confirmed by contact angle and gravimetric swelling studies. Furthermore, sanded SMC surfaces demonstrated superior UV primer adhesion. This results from the increased surface area of the topography, confirmed by CSLM and the exposure of more oxygen moieties such as pigments and silanols at the air-substrate interface as confirmed by AFM and XPS. The UV films have a higher modulus with increasing resin functionality and resulting cross-link density which correlated with reduced adhesion in formulations without an added isocyanate functional UV monomer. This indicates that cure shrinkage may play a role in the adhesion of UV cure primers and will be investigated further. Also, the added adhesion that an isocyanate functional UV monomer provides results in a significant increase in the glass transition temperature (T_g) giving a glassier film at room temperature.     

Effects of polyacrylic acid primers on adhesion and durability of FPL-etched aluminum/polyurethane systems

It has been determined that when a polyacrylic acid [p(AA)] macromolecule primer is used in polyurethane (PU)/p(AA)/FPL-etched aluminum joint systems, it interacts preferentially both with the hydrated Al₂O₃ or aluminum hydroxide adherend surface through the formation of hydrogen bonds and with the isocyanate groups in the PU adhesive to yield polymer-to-polymer chemical bonding. This chemical crosslinking between the hydrated adherend and the polymeric adhesive acts significantly to promote interfacial adhesive bonds. It appears that a near monolayer of p(AA) is enough to occupy all the available functional groups at the PU and aluminum surface sites. This arrangement plays a key role in improving the adhesion durability of the joint system upon exposure to a hot NaOH solution. It was also determined that the presence of excessive carboxylic acid groups resulting from the use of a thick p(AA) layer caused gel-formation-induced adhesion failures; namely, the locus of failure of the joint after exposure was clearly identified to be cohesive failure in the primer.     

双组分聚氨酯涂料用改性醇酸树脂的研究

采用不同改性的短油度醇酸树脂作甲组分,异氰酸酯预聚物作乙组分,配制双组分聚氨酯涂料,探讨甲组分对双组分聚氨酯涂料性能的影响。结果表明,椰子油改性短油度醇酸树脂,颜色水白、耐黄变性能和丰满度好,可以作为高档的亮光清面漆、耐黄变的面漆用树脂;蓖麻油改性短油度醇酸树脂,颜色较深、丰满度较好、干燥速度慢及柔韧性好,可以作为普通的亮光面漆用树脂;豆油改性短油度醇酸树脂,干燥速度较快,应用于底漆和哑光面漆;合成脂肪酸改性短油度醇酸树脂,颜色水白、流平好、干燥速度慢、丰满度高及硬度高,可以作为高档的亮光面漆用树脂。