醇酸树脂及其涂料

醇酸树脂的转相乳化；豆油脚脂肪酸制备松香改性醇酸树脂的配方研究；高性能水性醇酸氨基涂料的制备；     

松香改性豆油酸醇酸树脂的合成研究

以大豆油脚为原料提取豆油脂肪酸,并依此研究了松香改性豆油酸醇酸树脂的合成.获得的树脂和漆产品性能良好,降低了污染和能源消耗,较天然桐油和亚麻油等原料有明显优势,经济效益高.     

葵花油醇酸树脂漆

葵花油的保色性和不泛黄性优于豆油,且其颜色也比豆油浅。它不仅可作印铁罩光漆、清漆,而且可代替豆油作白色磁漆或其他浅色磁漆,性能指标达到规定要求。本文列举了葵花油醇酸树脂、印铁罩光漆、清漆、磁漆的配方、简单生产工艺和性能指标。     

豆油脂肪酸在涂料中的应用

以豆油脂肪酸代替豆油生产醇酸树脂和聚氨酯涂料，既可减少工序，节省成本，又能提高产品质量。本文介绍了豆油脂肪酸的生产原理和在涂料行业中的应用。     

缓蚀剂丙烯海松酸（乙二胺）酰胺改性醇酸树脂磁漆

以干性长油度醇酸树脂为主要成膜物质,加入适量的缓蚀剂丙烯海松酸(乙二胺)酰胺(APAA-DEA)及其他助剂,制备了松香基醇酸树脂磁漆。采用极化曲线、交流阻抗技术及盐雾试验等研究了APAA-DEA用量对长油度醇酸树脂磁漆防腐性能的影响。结果表明,加入0.3 g APAA-DEA时,涂层的腐蚀电流较低,腐蚀电位及保护效率,阻抗弧、涂层的硬度和附着力均较高,且涂层表干、实干时间缩短。盐雾试验测试结果与电化学测试一致,涂层防腐蚀性能明显提高。     

户外用丙烯酸改性醇酸树脂磁漆的制备

介绍了一种户外用丙烯酸改性醇酸树脂的合成工艺，并对由它制备的磁漆性能与普通醇酸树脂制备的磁漆性能作了对比。讨论了合成树脂工艺及原材料对涂膜性能的影响。     

改性醇酸快干磁漆的研制

利用资源丰富的C5石油树脂对醇酸树脂进行改性,制备出性能优异的快干磁漆。考察了醇酸树脂油度、醇酸树脂和石油树脂的配比、溶剂的类型、制备工艺等对产品性能的影响。     

水性醇酸树脂的合成及性能研究

通过脂肪酸法，选用豆油脂肪酸、偏苯三甲酸酐和不同的多元醇、多元酸制备了一系列水性醇酸树脂，用苯甲酸、顺丁烯二酸酐和油酸对其改性进行了研究。通过对合成产品性能如黏度、粒径、硬度、附着力、耐水性、耐汽油性等的研究，确定了综合性能较好的水性醇酸树脂。     

松香改性水可稀释型醇酸树脂的合成与性能研究

以豆油脂肪酸（ SFA）、松香、三羟甲基丙烷（ TMP）、邻苯二甲酸酐（ PA）、苯甲酸（ BA）为原料,选用 1,2,4-偏苯三酸酐（ TMA）为单体合成水性醇酸树脂。通过改变水性醇酸树脂中松香占原材料的摩尔分数,考察松香作为醇酸树脂硬度改性剂在改善水可稀释型醇酸漆膜的干燥时间与硬度方面的可行性,探究松香的含量对树脂物理性能、黏度、粒径与漆膜初期干燥速率、物理性能、耐介质性的影响。结果表明：随着松香含量的增加,醇酸树脂的颜色从棕黄色过渡到黑褐色,树脂黏度、漆膜硬度、 24 h后漆膜摆杆硬度持续时间及漆膜耐介质性也会随之增加。当松香含量为 0时,醇酸树脂的黏度为 2 540 mPa·s,漆膜铅笔硬度为 2B,24 h后漆膜摆杆硬度持续时间为 15 s,随着松香占原材料摩尔分数从 1.6%增加至 6.5%时,不仅树脂的黏度从 2 622 mPa·s逐渐增大至 2 726 mPa·s;而且漆膜铅笔硬度从 B增加到 H,24 h后漆膜摆杆硬度持续时间也由原来 15 s增加至 25 s。     

醇酸树脂及其涂料

,801034由可再生的原材料制得的可用作涂料的水性醇酸树脂乳液:EP741175〔欧洲专利醇酸树脂及其涂料1998年公开,德〕/德国:HoeehstA一G.(Zoeller,Joaehim等)一1996.11.6一6页一DE19515915(1995.5.2);IPC C09D167/08 题述乳液中的醇酸树脂和乳化剂均由可再生的原材料制得。该乳液包含由脂肪酸或油以及带OH和/或CO,H基的多官能化合物制得的醇酸树脂。由豆油609、甘油17鲍、唬拍酸配2159和松香1009制得醇酸树脂(I)(OH值为60、油度为60%)。将12009、豆油脂肪酸169和25%NH3 39在70℃下混合6omin,在70℃下加人1759水,得到乳白色粘稠的55…     

利用大豆油脚制备松香改性醇酸树脂

以大豆油脚为原料,研制的松香改性醇酸树脂,性能可靠、质量稳定。可代替市场紧缺的天然桐油和亚麻油,加工成各色醇酸调和瓷漆和脂酸调和瓷漆。介绍了原料配方、生产指标、产品性能及应用的经济效益。     

高性价比顺丁烯二酸醇酸树脂的研制及其应用

以顺丁烯二酸酐、豆油酸、松香和季戊四醇合成醇酸树脂,再与颜填料配制成质量好、价格较低的醇酸树脂漆。介绍了树脂原材料的选择,基本配比和技术指标,生产工艺及应用实例,讨论了影响其性能指标的主要因素。     

水溶性苯乙烯改性醇酸树脂的合成工艺研究

采用脂肪酸法合成基础醇酸树脂,然后用苯乙烯和丙烯酸接枝共聚,制得了水溶性苯乙烯改性醇酸树脂.通过探讨油度、K值、苯乙烯、丙烯酸用量等因素对改性后树脂成膜性能的影响,确定了水溶性苯乙烯改性醇酸树脂的最佳工艺和配方;同时比较了水溶性常规未改性醇酸清漆、溶剂型苯乙烯改性醇酸清漆与水溶性苯乙烯改性醇酸清漆的性能优劣.结果表明:水溶性苯乙烯改性醇酸树脂较未改性醇酸树脂干性、硬度有了较大提高,与溶剂型苯乙烯改性醇酸树脂相当;当选取油度60％、K值1.05、苯乙烯质量分数35％、丙烯酸质量分数6.5％时,水溶性苯乙烯改性醇酸树脂白干表干达到0.5 h,实干20 h,硬度HB,水溶性优异,漆膜耐水、耐碱性获得很大提高,同时兼具了性能要求和环保要求.     

Grafting sites of acrylic mixed monomers onto unsaturated fatty acids: Part 2

Acrylic groups were grafted onto alkyds via free radical chemistry. The alkyd comprised soybean oil, glycerol, phthalic anhydride, and tetrahydrophthalic anhydride. To closely model acrylated-alkyds, a mixture of four acrylic monomers were copolymerized with the alkyd including: methyl methacrylate (MMA), butyl acrylate (BA), methacrylic acid (MAA), and vinyltrimethyoxysilane (VTMS). Two different initiator systems were used, benzoyl peroxide (BPO) and 2,2′-azobisisobutyronitrile (AIBN), for comparison. To elucidate the grafting sites, 1D NMR spectroscopy and 2D NMR spectroscopy were used. Gradient heteronuclear multiple quantum correlation (gHMQC) was needed to assign the chemical shifts of the 1D carbon and proton NMR spectra. The gHMQC spectra provided evidence of acrylic–alkyd grafted structures formed at doubly allylic hydrogens located on the fatty acid chains. As a side reaction, acrylic groups were grafted into the polyester backbone of the alkyd via hydrogen abstraction of the glycerol. The gHMQC spectra show no evidence of grafting across double bonds on either the fatty acid side chains or the THPA backbone. It was also determined that choice of initiator has no effect on graft location. However, the system initiated with BPO provided spectral evidence of the formation of benzoic acid, which shows that the peroxide initiator can directly abstract the doubly allylic hydrogen. The side product, isobutyronitrile did not appear in the spectra obtained from the AIBN initiated system.     

Fully renewable limonene‐derived polycarbonate as a high‐performance alkyd resin

Limonene‐derived polycarbonate‐based alkyd resins (ARs) have been prepared by copolymerization of limonene dioxide with CO₂, catalysed by a β‐diiminate zinc–bis(trimethylsilyl)amido complex, and subsequent chemical modification with soybean oil fatty acids using triphenylethylphosphonium bromide as the catalyst. This quantitative partial modification was realized via epoxy–carboxylic acid chemistry, affording ARs with higher oil lengths, lower polydispersities and higher glass transition temperatures (T_g) in comparison to a conventional polyester AR based on phthalic acid, multifunctional polyol pentaerythritol and soybean fatty acid. The novel limonene polycarbonate AR and the conventional polyester AR were evaluated as coatings and both the physical drying (without the presence of the oxidative drying accelerator Borchi® Oxy Coat) and chemical curing (with Borchi® Oxy Coat) processes of these coatings were monitored by measuring the König hardness and complex modulus development with time. A better performance was obtained for the alkyd paint containing polycarbonates modified with fatty acids (FA‐PCs), which showed a faster chemical drying, a higher König hardness and a higher T_g in coating evaluation, demonstrating that the fully renewable FA‐PCs are promising resins for alkyd paint applications. © 2019 Society of Chemical Industry     

Factors influencing the stability and film properties of acrylic/alkyd water-reducible hybrid systems using a response surface technique

Acrylic-grafted-alkyd resins were prepared by free radical chemistry. Long, medium, and short oil alkyds were prepared using soybean oil, glycerol, phthalic anhydride (PA), and tetrahydrophthalic anhydride (THPA) and used as the alkyd phase. Acrylic co-monomer formulas containing methyl methacrylate (MMA), butyl acrylate (BA), methacrylic acid (MAA), and vinyl trimethoxysilane (VTMS) were polymerized in the presence of the different alkyds using 2,2′-azobisisobutyronitrile (AIBN) as the initiator to obtain the final grafted structures. Design of experiments was used to understand how different variables in the synthesis of the acrylated-alkyds affect the film performance. A Box–Behnkin design was used, varying the oil length of the alkyd phase, the degree of unsaturation in the polyester backbone, and acrylic to alkyd ratio. Acrylic–alkyd hybrid resins were reduced with an amine/water mixture. The hydrolytic stability of hybrid alkyd dispersed in water was evaluated. Cured films were prepared and basic coatings properties were also evaluated. It was found that the oil length of the alkyd is the most dominant factor for final coatings properties of the resins. The hydrolytic stability was dependent on the acrylic to alkyd ratio. The oil length of the alkyd backbone had a minimal effect on stability of the resin and film performance.     

The use of aminolysis,aminoglycolysis, and simultaneous aminolysis–hydrolysis products of waste PET for production of paint binder

This work is concerned with the use of aminolysis, aminoglycolysis, and simultaneous aminolysis–hydrolysis products of waste PET for production of paint binder based on alkyd resin. For this purpose, first, aminolysis, aminoglycolysis, and simultaneous hydrolysis–aminolysis reactions of waste PET were carried out in the presence of different chemical agents in xylene medium at high pressures. Reactions of waste PET flakes obtained from grinding postconsumer water bottles were carried out in an autoclave at higher temperatures. Then, four alkyd resins, formulated to have oil content 40–50%, were prepared using these depolymerization products. One of resins is “reference alkyd resin” which was prepared by using soybean oil fatty acid, phthalic anhydride, glycerine, and ethylene glycol for comparison. Other three alkyds are “depolymerization product‐based alkyd resins” in which depolymerization products is used instead of ethylene glycol. Then, the physical and chemical surface coating properties and thermal behaviors of alkyd resins films were investigated comparatively. As a result, we concluded that aminolysis, aminoglycolysis, and simultaneous aminolysis‐hydrolysis products of waste PET are suitable for manufacturing both air drying and oven curing paint binder based on alkyd resins. The film prepared from alkyd resin based on simultaneous aminolysis‐hydrolysis product showed extremely good surface coating properties and thermal stability. POLYM. ENG. SCI., 54:2272–2281, 2014. © 2013 Society of Plastics Engineers     

溚尔油醇酸树脂的改性及应用

介绍一种粗尔油醇酸树脂的改性方法及改性树脂在涂料中的应用。使用工厂的废副产物脂肪酸与一种聚合物进行改性,制得改性树脂用于涂料,使涂料的性能获得了提高,既为企业带来了效益,也减少了废物对环境的污染。     

Investigation of the effect of hydrolysis products of postconsumer polyethylene terephthalate bottles on the properties of alkyd resins

Hydrolysis of waste polyethylene terephthalate (PET) flakes obtained from grinding postconsumer bottles was carried out at 200–230°C and molar ratios of PET/H₂O were taken as 1/5; 1/10; 1/20. The reaction products, when extracted with boiling water, yielded a water soluble crystallizable fraction (WSCF) and a water insoluble fraction (WIF). These fractions were characterized by acid and hydroxyl value determinations and DSC analysis. WSCF and WIF were used for preparation of alkyd resins. Five long oil alkyd resins were prepared from phthalic anhydride (PA) (reference alkyd resin) or hydrolysis products of the waste PET (PET‐based alkyd resin), pentaerithrithol (PE), soybean oil fatty acid (SOFA), and ethylene glycol (EG). Film properties and thermal degradation stabilities of these alkyd resins were investigated. Drying time, hardness, alkaline resistance, and thermal oxidative degradation resistance of the PET‐based alkyd resins are better than these properties of reference resin. The results show that hydrolysis products of waste PET obtained from postconsumer bottles are suitable for manufacturing of alkyd resins. POLYM. ENG. SCI., 2013. © 2012 Society of Plastics Engineers