胶粘剂新专利

胶粘剂制品 US 20100206760 A1 2010-08-19 这种胶粘剂制品包含一个可破裂的容器和一个湿固化组成物。可破裂的容器为封闭的腔,湿固化组分放置在封闭腔内。湿固化组分包含一种预聚物（异氰酸盐组分和与其反应组分的反应产物）,还包含催化剂组分和酸性卤化物组分。此胶粘剂制品可用于各个行业和各种应用,如建筑、工业和住宅建筑等。     

车用树脂基复合材料结构件的应用研究

在中低温、低压条件下,采用对模制造车用树脂基复合材料大型结构件是未来发展趋势。反应性的热固性液态树脂在较低压力下注入含有干纤维预成型体的模腔中,树脂将模腔中的空气排出,同时浸润纤维。模腔充满后,注射过程结束,树脂开始固化,树脂固化达到一定强度后开模,取出制品。工艺类型和设备变化灵活,可设计性强,具有良好表面质量、高尺寸精度。成型过程苯乙烯排放量小,有利于环保。应用目标是开发重型卡车、电动汽车、高速列车、轿车用树脂基复合材料结构构件领域并实现产业化。     

RTM成型工艺的理论研究

本文论述了ＲＴＭ成型工艺的基本原理及工艺流程。利用固化以应动力学方程和能量控制方程得出了模腔中的温度分布，并对树脂固化程度进行预测；利用Ｄａｒｃｙ定律和流体动状态的控制微分方程，导出了注模时间的理论计算公式。     

用离心浇注法制造液体橡胶薄壁产品时工艺参数的选择

用离心成型方法制造热固性液体聚合物制品[1;2,见16,17页],方便了高粘度橡胶的加工。但是,当离心浇注参数选择不当时,胶料在充满模腔之前就完成固化,使产品变成废品。此外,表面张力也有碍薄膜材料的成型和狭窄模腔的填充。     

有机无机杂化涂料的防腐蚀性能

有机无机杂化涂料在较高温度下固化时，涂层的湿附着力好。采用有机无机组分适当配比、提高固化湿度、电泳涂装和加入片状颜料都能够降低杂化涂层的通透性，从而提高防腐蚀性能。有机缓蚀剂和铈离子被用于替代高毒性六价铬盐钝化颜料。为能起长效的保护作用，把有机缓蚀剂存储在β-环糊精的内腔中形成复合物，或把有机缓蚀剂填充在多水高岭土管腔中，     

模具温度的反馈控制

众所周知,在注射成型中,模具温度直接影响着制品质量、成本、成型周期等。一般来说,刚注射到模具内的树脂温度约为200℃左右,而后经过冷却固化成型,由模腔内取出时须在60℃以下。在模具设计时就     

复合材料液体模塑成型技术

复合材料液体模塑成型技术(简称LCM)是指将液态聚合物注入铺有纤维预成型体的闭合模腔中，或加热熔化，预先放入模腔内的树脂膜，液态聚合物在流动充模的同时完成树脂／纤维的浸润并经固化成型为制品的一类制备技术。树脂传递模塑、真空辅助树脂传递模塑、树脂浸渍模塑成型工艺、树脂膜渗透成型工艺和结构反应注射模塑成型是最常见的先进LCM工艺技术。这类工艺的共同特点是将纤维预成型体放入模腔内，     

塑胶模具应用技巧

模具为生产制品不可或缺的工具，大致可按加工原理和应用，分为塑胶模、冲压模、压铸模、锻造模等四大类。对於塑胶模具而言，注塑机的喷嘴会将加热后的颗粒状塑胶原料(即熔融)射入模腔，冷却固化后便可开模,     

制备碳纤维壳体的方法及其热胀元件和壳体结构

本发明公开一种制备碳纤维壳体的方法,其首先将碳纤维布覆盖于一内模的外表面,接着合上外模,使碳纤维布被夹于内模与外模之间的模腔中。其中,碳纤维布与模腔内壁面之间还设置有一薄片状的热胀元件,该热胀元件包括有一可剥离的离型膜和附着于该离型膜表面的膨胀膜片,并该模腔的宽度大于固化前叠层碳纤维布的厚度+热胀元     

陶瓷专利

专利名称：用于着色陶瓷的饱和可溶性盐的浆料；专利名称：高反射、吸紫外陶瓷釉料及使用该陶瓷釉料制备陶瓷聚光腔的方法；专利名称：紫外光固化陶瓷涂料；专利名称：高性能耐磨陶瓷材料；专利名称：双层陶瓷隔热杯及其制备方法；[编者按]     

Mussel adhesive protein as an environmentally-friendly harmless wood furniture adhesive

Recent adhesive technologies have focused on the development of high-quality and eco-friendly adhesives. Thus, there is a gradual shift from the currently used chemical-based adhesives toward harmless adhesives with improved quality and performance. Here, we evaluated the potential use of bacteria-produced recombinant mussel adhesive protein (MAP) as a harmless wood furniture adhesive. We formulated a MAP wood adhesive as an inclusion body type for economical preparation, and we confirmed its harmlessness through the non-detection of volatile organic compounds and heavy metals. The formulated MAP showed sufficiently strong bulk adhesive strength for the dried gluing of wood adherends. We also found that the formulated MAP wood adhesive exhibits robust adhesion in various environmental conditions, including open assembly times, incubation times, temperatures, and humidity levels. In summary, the developed recombinant MAP could be successfully used as a promising environmentally-friendly, harmless wood furniture adhesive.     

一种用于PVC粘接的环氧树脂胶粘剂

为解决PVC的粘接问题,采用自制对软质PVC具有良好亲合作用的改性环氧树脂增韧树脂制备的环氧树脂胶粘剂,室温固化24h或70℃固化1h可以达到软质PVC材料破坏,使用温度80～100℃。     

我国鞋用胶粘剂的市场与展望

目前,我国年产鞋量为60亿双,随着经济的增长,在加入WTO后,我国年产鞋量可稳定在70亿~80亿双。溶剂胶制造简单、使用方便、粘合力强,是广泛使用的大底胶,但环境污染严重,即将面临着被环保型胶取代的局面;具有环保性的热熔胶可用于绷帮、涂包头、鞋帮部件抿边、粘衬里、包鞋跟和面料复合,但用它来粘大底,还满足不了穿着的要求,须从增强分子间作用力和快速渗透功能两方面改进;水基胶尽管还存在粘合强度不高、水分蒸发慢等不足,但由于是目前污染最少的胶种而倍受关注;无溶剂胶省去了聚合、溶解、挥发干燥等诸多程序,同样也具有广阔的发展前景。     

近年来建筑结构胶粘剂的研究及应用

叙述了建筑结构胶的发展简史,介绍了近年来国内各类建筑结构胶研究开发情况,并就该胶应用研究中所获得的成果作了说明,例举了某些典型应用实例,关于今后的发展也提出了意见。     

实木复合地板用无醛胶粘剂研究

以多异氰酸酯为交联剂 ,聚乙烯醇与橡胶乳液的复合共混及各成分的改性 ,制成水性树脂—弹性复合体系胶粘剂。用此种无醛胶粘剂压制的三层实木复合地板的物理力学性能完全达到国家检测标准 ;在生产中可操作性强 ,完全满足现有的工艺要求 ;无甲醛公害 ;其原料成本低。     

LARCTMTPI Containing Pendant Phenoxy Moieties

The poly(keto-imide), LARC^TM-TPI, was developed in the late 1970's and has proven to be remarkable stable as a high temperature adhesives. Thermal aging results that were generated at both NASA Langley Research Center and at Boeing Aerospace Company proved this material to be stable in adhesive bond form for at least 60,000 hours at 232°C. A commercial form of LARC^TM-TPI was made available in the mid-to-late 1980's by Mitsui Toatsu Chemicals, Inc. (MTC). Since that time, MTC has optimized the process for manufacturing LARC^TM-TPI with the major improvements being in molecular weight control. Most recently, MTC synthesized a derivatized version of LARC^TM-TPI which contains pendant phenoxy moieties. This material is soluble in a number of organic solvents and it exhibits outstanding melt-flow properties which make it attractive as a hot-melt-processable polyimide adhesive. The synthesis and characterization of this novel material is the subject of this research paper.     

室温快固型双组分胶粘剂配方研究

以聚醚、甲苯二异氰酸酯和甲基丙烯酸羟乙酯为基本原料合成聚氨酯丙烯酸酯(PUA),采取氧化还原引发方式,用PUA及其它活性单体和添加剂制备出一种室温快固型双组分胶粘剂;通过正交试验考察了配比对定位固化时间及粘接强度的影响。该胶粘剂对钢片的粘接剪切强度可达8．5MPa,定位固化时间最短为50s。     

铜粉导电胶的制备研究

一种铜粉导电胶 ,由E51环氧树脂、密胺 -脲醛树脂MF ,铜粉及少量添加剂组成 ,固化温度为 1 0 0℃ ,体积电阻率≤ 3.6× 1 0 - 3Ω·cm ,该导电胶可应用在电子工业中。     

Improvements and limitation of soy protein-based adhesive: A review

Soy protein is known for its eco-friendly, sustainable, and biodegradable qualities that are likely used as raw material in producing bioadhesive. However, soy protein-based adhesive are lacking in terms of adhesive strength and water-resistance compared to commercial formaldehyde-based adhesives such as phenol and urea-formaldehyde resin. Therefore, continuous research has been done to improve adhesive performance. This can be done via physical or modification methods, including the usage of cross-linking agents, structural modification, enzymatic modification, and the addition of additives. This review will cover these modification methods that give significant enhancement to the water-resistance and adhesive strength of soy protein-based adhesives.     

耐高温环氧树脂胶粘剂的研制

介绍了一种无溶剂２００℃固化２ｈ,耐高温２５０℃环氧树脂胶粘剂,具有良好的耐热和耐湿热老化性。用于航空发动机的制造和修理。