钢桶密封胶的研制

叙述了以胶乳为主体材料研制成的钢桶密封胶。介绍了反应是及工艺流程，论述了ｐＨ值、固含量、粘度等对密封胶性能的影响．     

汽车用水基密封胶的制备

通过对不同的填料和用量的选择，研制成了水基汽车密封胶，应用于轻型汽车的整体密封，具有以水替代溶剂，节约能源、减少污染、贮存期长、使用安全、价格低廉等待点。     

染料敏化纳米晶太阳能电池用密封胶

染料敏化纳米晶太阳能电池(DSSC)因其制造成本远低于单晶硅和多晶硅太阳能电池,在石油资源紧张的现代备受瞩目,是继燃料电池之后新能源开发的又一热点。在实用化过程中,电解液的密封是一个至关重要又难于解决的关键技术。本文就电解液密封的技术要求介绍三键公司开发的紫外线固化型密封胶。     

汽车风挡玻璃用密封胶的结构与性能研究

研究了三种汽车风挡玻璃用单组分PU(聚氨酯)密封胶和SPU(硅烷改性聚氨酯)密封胶。采用红外光谱(FT-IR)、凝胶渗透色谱(GPC)法分析了三种密封胶的结构和相对分子质量,并对其固化行为、粘接性能和力学性能等进行了研究。结果表明:相对湿度越大(或固化温度越高),则三种密封胶的表干时间越短且固化速率越大;在三种密封胶的储存过程中,其表干时间和固化速率变化不大,稳定性较好;SPU密封胶与基材的粘接性能优于PU密封胶;PU密封胶的拉伸强度(≥8.2 MPa)和撕裂强度(19 N/mm)均优于SPU密封胶的拉伸强度(5.8 MPa)和撕裂强度(13 N/mm)。     

利用双酚A副产生产制桶用密封胶

本文介绍了使用双酚A生产过程中的副产物研制改性酚醛胶的工艺过程,这种酚醛胶可用于制桶密封用,经实验表明,可满足工艺要求。     

聚氨酯密封胶及其进展

对聚氨酯密封胶的性能、组成、原料、制备方法、应用和发展状况进行了总结，并简要综述了该领域的技术进展。     

无溶剂不干型液体密封胶的研究

以低分子质量聚异丁烯类聚合物为主体 ,配以各种添加剂制备一种新型单组分无溶剂型密封胶。它具有长期不干性和永久粘性 ,可用于汽车密封条的密封、建筑行业的密封、防水、嵌缝等方面。     

传感器用沥青密封胶的研制

提出了一种用于密封测力传感器导线盒的热熔密封胶配方，分别讨论了沥青、橡胶、增粘剂、填料等各成分对密封胶的影响。     

我国汽车制造业用胶粘剂、密封剂预测

本文简要介绍了汽车用胶情况,并对我国“八五”期间汽车制造业用胶粘剂、密封剂作了预测。     

单组份聚氨酯弹性密封胶的研究

本文是单组份湿固化聚醚型聚酯密封胶的合成与研究。该胶由二官能度和三官能度聚醚与ＴＤＩ反应制成预聚体后再加入多种填料和催化剂制成。讨论了ＴＤＩ用量,反应温度,聚醚的组成及填料对该胶的影响。     

Synthesis of new sulfonated copolyimides in organic and ionic liquid media for fuel cell application

New sulfonated copolyimides containing ether, carbonyl, and bulky naphthyl group in backbone were synthesized in two reaction media: organic solvent and ionic liquid media. For this purpose a new sulfonated diamine (BANBPDS) and an unsulfonated diamine (BANBP) was prepared through reactions of 4,4′‐dichlorobenzophenone‐3,3′‐disulfonic acid, and also 4,4′‐dichlorobenzophenone with 5‐amino‐1‐sodium naphthoxide, respectively. Three series of sulfonated copolyimide with different sulfonation contents (40–80%) were prepared by reaction of the sulfonated diamine (BANBPDS) in companion with three unsulfonated diamines including BANBP, 4,4′‐oxydianiline (ODA), and 1,8‐diamino‐3,6‐dioxaoctane (DADO) with 1,4,5,8‐naphthalene tetracarboxylic dianhydride (NTDA). Two media were selected for preparation of copolyimides. Copolyimides synthesized in ionic liquid had higher inherent viscosity and higher molecular weight in comparison with similar copolyimides that were synthesized via common organic solvent method. Incorporation of flexible groups in polyimide structures increased solubility and processability of the copolyimides. After characterization of polymers with common methods, their water uptake, water stability, ion exchange capacity (IEC), thermal behavior and stability, crystallinity, and morphology were studied. The polymers showed suitable properties including high thermal stability and ion exchange capacity, which were the basic requirements for application as fuel cell membranes. © 2011 Wiley Periodicals, Inc. J Appl Polym Sci, 2012     

建筑用弹性密封胶的选用

从分子结构和热失重分析着手,介绍了4种建筑用弹性密封胶的性能优缺点;并按用胶领域对建筑用弹性密封胶的选用给出了建议。     

水基预涂型锁固密封胶概况

国外从20世纪70年代就开展预涂型锁固密封胶的研究及应用工作,因其可部分代替液态型厌氧胶,提高汽车等机械行业生产自动化水平,国内也从上世纪80年代开展预涂型锁固密封胶的研究,并在东风汽车公司成功应用;预涂型锁固密封胶分溶剂型及水基型两大类,水基型具有安全环保等优势,本文概述了水基预涂型密封胶的国内外技术发展概况,主要对水基型预涂微胶囊厌氧锁固密封胶和单组分水基型预涂密封胶的研究、性能及应用情况作了简要的介绍和展望。     

微生物燃料电池研究和应用方面的最新进展

微生物燃料电池是一种利用微生物的催化作用将化学能转变为电能的生物装置。微生物燃料电池在作为可替代性能源、新颖的污水处理方法以及氧和污染物的生物传感器等方面具有较大的潜能,但仍需进一步优化。本文确定了限制微生物燃料电池应用操作的几种因素,并在其性能提高方面进行了探讨。     

Sulfonated multiblock copolynaphthalimides for polymer electrolyte fuel cell application

Sulfonated multiblock copolynaphthalimides (multiblock co-SPIs) were prepared by two-pot polymerization method from 1,4,5,8-naphthalenetetracarboxylic dianhydride, sulfonated diamine of 4,4′-bis(4-aminophenoxy)-3,3′-bis(4-sulfophenyl)biphenyl (BAPSPB) and nonsulfonated diamine of 4,4′-diaminophenyl hexafluoropropane. The multiblock co-SPI (BA1) with hydrophilic/hydrophobic block length of 20/10 and ion exchange capacity (IEC) of 1.67 meq g⁻¹ exhibited larger water uptake, larger in-plane and through-plane proton conductivity (σ∥ and σ⊥, respectively) than the random co-SPI with the similar IEC. The multiblock co-SPI (BA2) with the longer block length of 20/20 exhibited the large σ∥ and σ⊥ comparable to those of BA1, in spite of the smaller IEC of 1.35 meq g⁻¹. Both the multiblock and random co-SPIs showed the moderate anisotropic proton conductivity (σ_⊥/σ_//≒ 0.70) as well as anisotropic membrane swelling with about three times larger through-plane swelling than in-plane swelling. The TEM observation revealed that BA2 had an isotropic and inhomogeneous morphology with indistinct microphase-separated structure, whereas the random co-SPIs had a homogeneous morphology. The behavior of BAPSPB-based multiblock co-SPI membranes were quite different from that of the multiblock co-SPIs based on 2,2′-bis(4-sulfophenoxy)benzidine, which was due to the presence of two flexible ether bonds in BAPSPB moiety of the main chain. Even under the low humidification of 27/27% RH at 90 °C and 0.2 MPa, BA2 exhibited the fairly high PEFC performance; namely, cell voltage of 0.67 V at load current density of 0.5 A cm⁻² and maximum output of 0.51 W cm⁻², which were much larger than those of BA1 and the random co-SPI (RA1) with IEC of 1.84 meq g⁻¹, and have the high potential as PEM for PEFC applications.     

阻燃型双组份聚氨酯密封胶粘剂的研制与应用

本文以聚醚多元醇和甲苯二异氰酸酯为原料．用多元醇和芳香族二胺为扩链剂和交联剂，添加反应型阻燃剂及其它配合剂，制备了阻燃型双组份无溶剂聚氨酯密封胶粘剂，通过控制阻燃剂的用量来调节该胶的操作时间．并且考察了环境温度及催化剂种类等对该胶操作时间的影响，固化时间对该胶剪切强度的影响，以及应用情况。