共查询到19条相似文献,搜索用时 62 毫秒
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<正>由福建农林大学材料工程学院研发的木材工业用环保型耐水性大豆基蛋白质胶粘剂,日前经省级专家鉴定,证明其已达到国际同类产品的先进水平。福建尤溪三林木业有限公司已决定投资兴建年产5 000 t的环保型耐水性大豆基蛋白质胶粘剂生产线。 相似文献
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《中国胶粘剂》2016,(2)
采用A-SPI[酸热处理SPI(大豆分离蛋白)]和交联改性剂[PAE(聚酰胺多胺环氧氯丙烷树脂)]对D-SPI(热碱液化SPI)进行复合改性,制备PAE改性SPI基木材胶粘剂。以干态胶接强度、耐水煮胶接强度为考核指标,采用单因素试验法优选出制备PAE改性SPI基胶粘剂的优化配方,并揭示了PAE对SPI基胶粘剂耐水性的改善机制。研究结果表明:制备PAE改性SPI基胶粘剂的优化配方为m(D-SPI)∶m(A-SPI)=1∶3、w(PAE)=30%(相对于胶粘剂质量而言);由优化配方胶粘剂制备的胶合板,经28 h煮-烘-煮循环处理后,其耐水煮胶接强度(1.25 MPa)满足Ⅰ类胶合板的指标要求。 相似文献
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Xin Li Donghai Wang Jo A. Ratto 《Journal of Adhesion Science and Technology》2013,27(18-19):2065-2074
Making thin-layered fiberboard and recycling the fiberboard materials are two major approaches to save quantities of wood fiber in fiberboard manufacture, which offer both environmental and economic benefits to the society and industry. The objective of this research was to develop high-strength, thin-layered pulp fiberboards (TLPBs) using sodium dodecyl sulfate (SDS)-modified soy protein adhesives for packaging applications. SDS-modified soy protein adhesives demonstrated significantly higher bonding strength than did unmodified soy protein adhesive. Results showed that the TLPB with SDS-modified soy flour adhesive (0.05?g/cm2 area density and 0.6?mm of thickness) had stronger tensile strength, similar burst index, and similar or better water soaking properties in comparison to commercial solid fiberboard (1.24?g/cm2 area density and 1.7?mm thickness). 相似文献
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大豆7S与11S球蛋白尿素变性后的粘接性质研究 总被引:2,自引:0,他引:2
随着人们对环境保护意识的增加和地球有限资源的缺乏,大豆蛋白在胶粘剂工业中的应用也越来越显示出强大的吸引力,鉴于前人的研究成果,文章研究了大豆7S和11S球蛋白经过尿素变性后在松木、樱桃木和胡桃木上的粘接强度和湿润能力。结果表明在不同的木块上不同胶粘剂有不同的粘接强度和湿润性能。7S大豆蛋白尿素变性后在硬木上有较好的湿润性。1M尿素变性赋予11S蛋白的粘接强度最高,3M尿素变性后,7S蛋白在硬木上的粘接强度大于11S蛋白。蛋白质的二级结构测量表明β-折叠对于3 M尿素变性后的大豆蛋白在硬木上的粘接强度起着重要作用,而无规则卷曲是降低1 M尿素变性7S大豆蛋白粘接强度的主要因素。 相似文献
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Adhesion properties of soy protein with fiber cardboard 总被引:19,自引:0,他引:19
Zhikai Zhong X. Susan Sun Xiaohua Fang Jo A. Ratto 《Journal of the American Oil Chemists' Society》2001,78(1):37-41
Adhesion properties of soy protein isolate (SPI) on fiber cardboard and effects of press conditions, pre-pressing drying time,
and protein concentrations on gluing strength were investigated. Shear strength increased as press time, press pressure, and/or
press temperature increased. The effect of temperature on shear strength became more significant at high press pressure. The
shear strength of the SPI adhesive on fiber cardboard decreased by 12–25% after water soaking. Shear strength increased as
pre-pressing drying time increased and reached its maximal value at about 10 min. An SPI/water ratio of 12∶100 (w/w) gave
the highest gluing strength. The specimens showed complete cohesive failure (fiber cardboard failure) except for soaked specimens
pressed at low press temperature, low pressure, and short press time. Specimens pressed at 25°C and 2 MPa for 5 min with pre-pressing
drying time of 10 min and an SPI/water ratio of 12∶100 (w/w) had T-peel strength and tensile bonding strength of 1.15 N/mm
and 0.62 MPa, respectively, without water soaking, and 1.11 N/mm and 0.24 MPa, respectively, with water soaking. 相似文献
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以大豆蛋白胶为竹材胶合板的无甲醛胶黏剂,研究了胶合板的热压工艺。结果表明,大豆蛋白胶的竹材胶合板的最佳热压工艺参数:热压时间50 min,热压压力17 MPa,热压温度140℃,施胶量400 g/m2。在此条件下,胶合板在胶合强度和耐水性方面均高于国家标准Ⅱ类胶合板要求。 相似文献