大豆基木材胶黏剂的研究进展

随着近年来环境保护与资源节约受到重视,开发环保高效的新一代木材胶黏剂已经成为研究热点.大豆蛋白作为最具应用前景的天然胶黏剂之一,被进行了充分的改性研究.综述了近年来围绕大豆蛋白作为木材胶黏剂应用而进行的改性研究.并对研究中存在的问题和将来的发展方向进行了归纳和展望.     

木材用蛋白基胶黏剂专利技术现状分析

大豆蛋白胶黏剂是最具应用前景的天然胶黏剂之一,为了进一步提高胶合强度低、存储期短、耐水性差等缺陷,大豆蛋白胶黏剂被进行了充分的改性研究。本文介绍了大豆蛋白的特点和耐水机理,以及对近年来围绕大豆蛋白作为木材胶黏剂的应用而进行改性研究的专利技术发展现状进行了分析。     

硅橡胶胶黏剂改性研究进展

硅橡胶胶黏剂具有优异的耐热、耐寒、耐老化性,对紫外线、臭氧作用稳定,耐气候性和电性能良好,在电子电器、汽车、机械、建筑、医疗等行业得到广泛应用。对于硅橡胶胶黏剂的改性研究,主要包括对聚硅氧烷的结构改性,合成和选用新的黏附促进剂,添加各种助剂等,以提高胶黏剂的粘接性能或获得其他性能。本文介绍了硅橡胶胶黏剂种类、性能与应用,并对硅橡胶胶黏剂在粘接性、导电性、导热性、力学性能等的改性研究进展进行了概述。     

用木质素改性胶黏剂

介绍了用木质素改性酚醛 ,脲醛与聚氨酯胶黏剂的研究及发展情况。     

大豆蛋白基胶黏剂的研究进展

针对大豆蛋白基胶黏剂的耐水和胶接性能的改性方法,进行了系统性总结,主要有化学改性、物理改性、防霉改性、热压参数对胶黏剂性能影响。同时指出大豆蛋白胶黏剂存在的问题,对其未来相关研究展望。     

大豆蛋白复合胶黏剂的研究进展

综述了国内外大豆蛋白复合胶黏剂的制备方法,包括大豆蛋白-PF、大豆蛋白-UF胶黏剂和大豆蛋白-丙烯酸酯复合胶黏剂的制备方法,及大豆蛋白复合胶黏剂制备中大豆蛋白表面的改性,着重对目前最常用的硅烷偶联剂和偶氮类化合物两种修饰方法进行了介绍。还介绍了大豆蛋白复合胶黏剂在人造板、造纸等工业领域中的应用,并对复合材料的应用前景进行了展望。     

异氰酸酯胶黏剂的改性及研究进展

综述了异氰酸酯胶黏剂的优缺点,介绍了当今对异氰酸酯胶黏剂改性的物理改性和化学改性方法,并针对物理改性中的共混改性、填充改性以及化学改性中的交联改性的方法分别进行了详细的介绍;同时对近几年来国内外针对异氰酸酯胶黏剂改性的最新研究动态进行了阐述分析,最后对今后异氰酸酯胶黏剂改性的研究发展前景做出了展望。     

国内有机硅改性胶黏剂的研究进展

综述了近年来国内有机硅改性胶黏剂的研究进展,对有机硅改性环氧树脂、丙烯酸树脂、酚醛树脂、脲醛树脂和聚氨酯胶黏剂的制备和性能进行了较为详尽的叙述,展望了有机硅改性胶黏剂的发展前景。     

丙烯酸酯改性聚氨酯胶黏剂

叙述了丙烯酸酯改性聚氨酯胶黏剂的3种制作方法:共混法;互穿聚合物网络法;接枝法。简述了几种典型共混物组成,详述了互穿聚合物网络和接枝聚合物的制法。     

改性水性聚氨酯胶黏剂研究进展

介绍了水性聚氨酯胶黏剂的分类和合成方法。综述了水性聚氨酯的改性方法,包括丙烯酸酯改性、环氧树脂改性、有机氟改性、有机硅改性、纳米材料改性、复合改性和超支化预聚体改性。比较了各种改性方法的优势和缺陷,提出了每种方法改性的胶黏剂的适用领域,指出了水性聚氨酯胶黏剂的发展趋势。     

大豆基胶粘剂的研究进展

介绍了大豆蛋白的结构与组成,综述了近年来国内外大豆基胶粘剂的发展概况和改性进展,提出了研发中存在的问题以及发展大豆基胶粘剂的意义。     

改性大豆蛋白胶粘剂的研究进展

天然高分子大豆蛋白有着一些卓越的功能特性，可以用作胶粘剂。而改性大豆蛋白胶粘剂功能特性更优越。近几十年，作为环境友好绿色化工产品，改性大豆蛋白胶粘剂的研究与应用开发均取得了很大的进展，综述了大豆蛋白改性技术、改性大豆蛋白胶粘剂的特性及其应用。     

Preparation of soy protein concentrate and isolate from extruded-expelled soybean meals

Soy protein concentrates (SPC) and soy protein isolates (SPI) were produced from hexane-defatted soy white flakes and from two extruded-expelled (EE) soy protein meals with different degrees of protein denaturation. Processing characteristics, such as yield and protein content, and the key protein functional properties of the products were investigated. Both acid-and alcohol-washed SPC from the two EE meals had higher yields but lower protein contents than that from white flakes. Generally, SPC from an acid wash had much better functional properties than those from an alcohol wash. The SPI yield was highly proportional to the protein dispersibility index (PDI) of the starting material, so the EE meal with lower PDI had lower SPI recovery. The protein content in SPI prepared from EE meals was about 80%, which was lower than from white flakes. Nevertheless, SPI from EE meals showed functional properties similar to or better than those from white flakes. The low protein contents in SPC and SPI made from EE meals were mainly due to the presence of residual oil in the final products. SPI made from EE meals had higher concentration of glycinin relative to β-conglycinin than that from white flakes.     

大豆蛋白胶粘剂的化学改性研究进展

由于石油危机和环境污染,传统的甲醛胶粘剂受到了严峻挑战,用天然可再生物质制取环保、绿色胶粘剂已成为趋势。文章就大豆蛋白胶粘剂性能、化学改性方法及其在环保型胶粘剂的应用前景进行全面描述。     

甲基丙烯酸缩水甘油酯对大豆蛋白塑料改性作用研究

用模压的方法制备了甲基丙烯酸缩水甘油酯(GMA)改性大豆分离蛋白质(SPI)塑料。表征了GMA改性SPI塑料的力学性能、耐水性,并分析了GMA与SPI之间的相互作用。结果表明GMA在模压过程中,环氧基与蛋白质分子间发生接枝和交联反应,同时自聚,在GMA含量较低时可以同时对SPI塑料起到增强和增塑作用,但是随着GMA含量增加,交联作用增强,塑料的断裂伸长率下降。     

Surface modification of poly (ethylene terephthalate) fabric by soy protein isolate hydrogel for wound dressing application

In this study, a composite of poly (ethylene terephthalate) (PET) fabric and soy protein isolate (SPI) hydrogel loaded with gabapentin was developed. For covalent attachment of SPI on the surface of PET fabric, graft polymerization of acrylic acid (AA) on the surface of PET fabric was performed and then carboxyl groups available in the structure of AA were activated using EDAC and then SPI was coated on the surface of PET fabric. The results revealed appropriate connection between hydrogel and modified fabric. The hydrogel was characterized by swelling test and the drug release behavior was investigated. It was found that the casting temperature affects the swelling ratio of the hydrogel and an appropriate release profile of the drug was observed. The surface of fabric was characterized by contact angle measurement, electron microscopy, and infrared spectroscopy. In vitro cell culture study was performed using NIH 3T3 mouse fibroblasts to investigate the biocompatibility of final composite and MTS results along with morphology of cells on the surface of PET fabric coated with SPI revealed the biocompatibility of final product and no cell cytotoxicity was observed in modified PET fabric.     

改性大豆分离蛋白对顺丁橡胶/丁苯橡胶复合材料性能的影响

将糊化改性的大豆分离蛋白( SPI)等量替代炭黑填充至顺丁橡胶/丁苯橡胶中,研究了改性SPI的粒径和热性能,考察了改性SPI用量对橡胶复合材料物理机械性能、热性能、压缩生热性能的影响,并与白炭黑和轻质碳酸钙填充复合材料进行了对比.结果表明,改性SPI的中位径由原来的115.25 μm减小至37.63 μm,比表面积由原...     

Preparation and characterization of soy protein isolate films modified with sorghum wax

The effect of increasing the concentration of sorghum wax paste on the characteristics of soy protein isolate (SPI) films was investigated. Water vapor permeability (WVP), tensile strength (TS), elongation at break (E), and total soluble matter (TSM) of cast SPI films were determined. Sorghum wax paste extracted with ethanol was added to film-forming solutions of SPI at 5, 10, 15, or 20% w/w of protein. As the concentration of wax paste increased, mean WVP, E, and TSM values of SPI-sorghum-wax-paste composite films decreased and were lower than those of control SPI films. Mean TS values were lower than the control upon addition of 5 and 10% wax paste; however, TS values increased at 15 and 20% was concentrations. Although no differences in components of sorghum wax were observed between paste extracted with ethanol and wax extracted with hexane, paste extracted with ethanol was miscible with the filmforming solution. SPI-sorghum wax paste films had better water barrier and physical properties compared to control films.     

改性大豆蛋白标签胶的研究

以大豆蛋白为主要原料、正十二硫醇为改性剂,制备改性大豆蛋白标签胶。通过单因素试验法考察了m(蛋白质)∶m(水)比例、改性剂用量、反应体系pH值、反应温度和反应时间等因素对标签胶的黏度、粘接力和耐水性能等影响,并采用正交试验法进一步优选出制备标签胶的最佳工艺条件。结果表明:当反应温度为70℃、m(蛋白质)∶m(水)=1∶8.0、V(改性剂)=0.60 mL和反应时间为40 min时,改性标签胶的综合性能相对最好。     

改性大豆蛋白胶粘剂的研究进展

综述了碱降解改性大豆蛋白胶粘剂的研究进展以及接枝共聚反应在交联改性反应中的重要性,认为在复合碱降解改性大豆蛋白基础上进行接枝共聚改性作为一种与交联反应方法平行的改进方法或补充方法是可行的。