大豆油衍生物及其在聚氨酯中的应用

介绍了作为天然可再生资源的大豆油的结构、组成及其大豆油衍生物的合成和在异氰酸酯型聚氨酯和新型的非异氰酸酯型聚氨酯(NIPU)方面的应用。其中,大豆油衍生物包括环氧大豆油、羟基多元醇大豆油、环状碳酸酯和含噁唑烷酮环的预聚物等。由环氧大豆油合成的环状碳酸酯制备的新型非异氰酸酯型聚氨酯可改善传统异氰酸酯型聚氨酯的许多特性,具有较好的耐热性和耐化学品性。     

大豆油型非异氰酸酯聚氨酯的合成与表征

以环氧大豆油为原料合成了大豆油环碳酸酯(CSBO),并进一步与脂肪族伯胺反应合成了大豆油型非异氰酸酯聚氨酯(E-NIPU)。利用FT-IR、GPC、元素分析等分析手段对产物的结构进行了表征。     

大豆油基聚酯多元醇的合成及其在聚氨酯泡沫中的应用

以大豆油、苯酐、对苯二甲酸和小分子醇为原料,通过酯化–酯交换反应,制得了酸值0.5mg/g的大豆油基聚酯多元醇。通过FTIR(傅里叶变换红外)、~1H-NMR(核磁共振氢谱)的结构表征,确认了大豆油成功引入聚酯分子链中。同时,考察了大豆油用量对聚酯多元醇品质和聚氨酯泡沫性能的影响。结果表明,原料体系中含有质量分数15%～25%大豆油合成的聚酯多元醇时外观及加工性能较好,由其制备的聚氨酯泡沫的低温尺寸稳定性优异。     

大豆油衍生物的制备及其在涂料中的应用

大豆油是一种来自于大豆的可再生的丰富的自然资源,以其为原料可以制备多种具有工业应用价值的大豆油衍生物,如环氧大豆油及大豆油多羟基化合物等,这些衍生物具有对环境无毒害且可降解的优异特性,在涂料工业中得到广泛应用,越来越受到研究者的青睐。重点了介绍大豆油衍生物的制备及其在涂料工业中的应用。     

大豆油多元醇的改性及其在聚氨酯泡沫塑料中的应用研究进展

综述了将大豆油进行改性制备大豆油多元醇,替代石油基聚醚多元醇制备聚氨酯的研究进展,并展望了大豆油在制备聚氨酯泡沫塑料中的应用前景和发展趋势。主要从4个方面进行了介绍:羟基化合物改性大豆油制备聚氨酯泡沫塑料、巯基乙醇改性大豆油制备聚氨酯泡沫塑料、引入第三组分制备聚氨酯复合材料、特殊官能团改性大豆油多元醇制备聚氨酯泡沫塑料等。     

大豆油及其衍生物在新能源和新材料中的应用研究进展

大豆油及其衍生物以其良好的环保性和资源可再生性,在新能源和新材料等领域有着广泛应用。本文介绍了作为可再生资源的大豆油的结构和组成成分,大豆油及其衍生物在生物柴油、油墨以及聚氨酯新材料等方面的应用研究进展。     

大豆油多元醇的制备及其在聚氨酯硬泡中的应用

通过实验制备出大豆油多元醇Soy-450,并应用于聚氨酯硬泡中,通过改变Soy-450的替代用量来研究其对硬泡性能的影响。随着Soy-450替代量的增加,发泡性能和尺寸稳定性有所下降,密度增大;当替代量为10~50份时,具有更高的垂直压缩强度;与石油基硬泡相比,大豆油基硬泡具有更好的热稳定性。     

大豆油基聚氨酯泡沫塑料的研究进展

本文着重介绍将大豆油进行改性制备的大豆油多元醇作为制备聚氨酯泡沫塑料的研究方法及其研究进展,并展望了大豆油在制备聚氨酯泡沫塑料的应用前景和发展趋势。     

大豆油基聚氨酯的研究及应用进展

综述了大豆油基聚氨酯的制备方法及应用,以大豆油为绿色原料,通过环氧化得到环氧大豆油,利用环氧大豆油开环制得大豆油基多元醇,再用此多元醇与异氰酸酯反应得到大豆油基聚氨酯泡沫、大豆油基聚氨酯乳液以及溶剂型大豆油基聚氨酯树脂。同时介绍了大豆油基聚氨酯在泡沫、涂料、胶粘剂等领域的具体应用。     

非异氰酸酯聚氨酯最新研究进展与应用

综述了非异氰酸酯聚氨酯(NIPU)及其两种合成原料环碳酸酯齐聚物和胺类齐聚物的最新研究进展,讨论了环碳酸酯和胺类齐聚物的合成方法以及NIPU的合成机理,介绍了NIPU的应用范围、发展前景及国外企业对于此类新型材料的最新研发情况和工业动态。最后指出原料易制备、无毒安全、价格便宜的NIPU是今后研究的重点。     

非异氰酸酯聚氨酯的研究进展及应用

综述了非异氰酸酯聚氨酯(NIPU)的合成原理与性能特点,讨论了两种合成原料环碳酸酯齐聚物和胺类齐聚物的合成方法及最新研究进展,介绍了NIPU的应用范围及发展前景.     

Straightforward Synthesis of Amido Polyols from Epoxidized Soybean Oil for Polyurethane Films

This work reports a straightforward and selective method for the preparation of a polyol that can be used in the manufacture of polyurethane (PU) films. The polyol, from the N-hydroxyalkylamides family, is obtained from the selective amidation and oxirane ring opening of epoxidized soybean oil (ESO) with the amino alcohol N-methylethanolamine (N-MEA). The reaction is carried out under mild conditions and in the absence of solvents and catalysts. Other similar amino alcohols (namely monoethanolamine (ETA), 5-amino-1-pentanol (PEA), and 2-(2-aminoethoxy)ethanol (AEE)) are also used to carried out the amidation of ESO. However, for these amines, the amidation and/or oxirane ring opening of ESO is not complete. Therefore, the N-hydroxyalkylamide obtained from the amidation of ESO with N-MEA is chosen as the polyol for the preparation of PU films. The PU films are obtained from the reaction with a trimer of hexamethylene diisocyanate (Tolonate) and hexamethylene diisocyanate (HDI). Curing proceeds at room temperature, without catalyst. It is shown that the properties of the resulting PU films are dependent on the amount of Tolonate in the formulation.     

环氧大豆油增塑剂的应用及其研究进展

环氧大豆油作为常用的辅助增塑剂,拥有价廉、无毒、原料来源广泛等优异的性能,能显著提高材料的柔韧性,起到良好的增塑作用,并能改善材料的缺陷等。同时,通过对环氧基的改性,在植物油基聚合物领域有潜在应用价值,能减少石油化工及煤化工衍生物的依赖,符合绿色环保的要求。根据以上特点,综述其在聚乳酸、紫外光固化涂料、聚氨酯、植物油基泡沫塑料、环氧树脂等聚合物领域的应用及其进展。     

Incorporation of carbon dioxide into soybean oil and subsequent preparation and studies of nonisocyanate polyurethane networks

Epoxidized soybean oil was effectively converted to carbonated soybean oil (CSBO) containing five‐membered cyclic carbonates by reaction with carbon dioxide in the presence of tetrabutylammonium bromide as catalyst at 110°C in high yield. CSBO could easily react with di‐ or tri‐ primary amines to give the corresponding nonisocyanate polyurethane networks (NIPUs). A model reaction between CSBO and n‐butylamine showed the effective ring opening of five‐membered cyclic carbonate moieties in the triglyceride molecules by the amine to form β‐hydroxyurethane systems. NIPUs were further characterized by the three techniques of solvent extraction, dynamical mechanical analysis, and limited tensile testing. The data from these methods confirmed the network character of all materials and also showed how the levels of extractables, Tg, and mechanical properties varied with type of amine and, in the case of ethylenediamine, the effect of stoichiometry. © 2004 Wiley Periodicals, Inc. J Appl Polym Sci 92: 883–891, 2004     

The Film Properties of Waterborne Polyurethane Modified by Epoxidized Soybean Oil and Styrene

The waterborne polyurethane (WPU) modified by epoxidized soybean oil (ESO) and styrene (St) (WPU-ESO-St) was synthesized by free-radical emulsion polymerization using styrene (St) as a monomer, and azodiisobutyronitrile (AIBN) as initiator. The research on the mechanical properties of the film showed that with the increasing of the [NCO]/[OH] ratio, the contents of ESO, DAAM and the St, the tensile strength increased, and elongation at break decreased. The surface morphology of the film was characterized by atomic force microscopy (AFM). The glass transition temperature (Tg) of the film was characterized by differential scanning calorimetry (DSC) analysis.     

氢过氧化大豆油还原制备羟基大豆油

用亚硫酸钠还原氢过氧化大豆油制备羟基大豆油,并考察了溶剂种类,溶剂浓度,温度,还原剂亚硫酸钠量及还原时间对反应的影响.在实验条件下,最佳工艺条件为：15℃、以88.2 ％（V/V体系）的乙醇为溶剂、n（Na2SO3）∶n（-OOH）=1.2∶1、反应1.5h.氢过氧化大豆油的转化率达95.8％.     

非异氰酸酯聚氨酯的研究进展

简要概述了非异氰酸酯聚氨酯(NIPU)的合成原理与性能特点,介绍了典型NIPU、杂化非异氰酸酯聚氨酯(HNIPU)、硅氧烷改性非异氰酸酯聚氨酯、丙烯酸改性杂化非异氰酸酯聚氨酯(A-HNIPU)等几种非异氰酸酯聚氨酯的研究进展,展望了此类材料的应用现状与发展前景。