环氧树脂／聚氨酯互穿网络的研究

本文对用同步法制备环氧树脂／聚氨酯互穿网络体系的研究表明：不同组成的环氧树脂、聚氨酯，不同体系的促进剂（催化剂）对互穿网络的机械性能均有影响。     

环氧树脂／聚氨酯互穿网络的研究

本文对用同步法制备不同配比的环氧脂／氨酯互穿网络体系进行了研究。结果表明，体系中当环氧树脂与聚氨酯的配比为９０：１０时，两相相容性好，互穿程度高，综合机械性能提高，并可提高环氧树脂的韧性。     

蓖麻油聚氨酯／聚甲基丙烯酸甲酯互穿网络聚合物的研究

本文用同步法合成了蓖麻油聚氯酯/聚甲基丙烯酸甲酯(CO-PU/PMMA)互穿网络聚合物(IPN),用付里叶红外跟踪了 IPN 的生成过程。对不同组成比 IPN的形态及性能进行了研究。结果表明:该 IPN 属相容性较差体系,成网不同步和聚合物热力学上的不相容是产生相分离的主要原因。加入网间接枝剂及改变 PU 网络的3OH/2OH 比值都可以有效地改善该 IPN 相容性。     

聚氨酯环氧树脂互穿网络的性能研究

本文以Ｎ，Ｎ－二甲基苄胺和二月桂酸二丁基锡为催化剂合成聚氨酯环氧树脂互穿网络弹性体，考察了产物的力学性能和热学性能。实验结果表明，ＩＰＮＰＵ／ＥＰ比纯ＰＵ具有更好的物理机枪豚加工性能，拉伸强度得到很大提高，并在ＥＰ含量为２０％时达到最大，而热稳定性有所降低。     

聚氨酯／聚苯乙烯互穿聚合物网络的结构与性能研究

通过改变组分比研究了PU/PS IPN结构与性能变化的规律。结果表明,在PU/PS为70/30时,电镜照片上呈现精细的细胞结构,相区尽寸缩小,网络间互穿程度最高,且溶胀度最低。热力学性能也同时出现最佳值,     

环氧—丙烯酸酯／聚氨酯互穿网络涂料的研制

采用一种新型活性催化剂，在常温下制不氧一丙烯酸酯，再与蓖麻油聚氨酯预聚体制成互穿网络涂料。讨论了不氧－丙烯酸酯／聚氨酯的比例秒同环氧－丙烯酸酯对涂层性能的影响。实验表明，互穿网络涂料的物理性能与耐化学腐蚀性均在较大提高。     

聚氨酯／苯乙烯互穿网络膜的实验研究

以亲水性强的聚乙二醇（PEG）和甲苯二异氰酸酯（TDI）为原料制备聚氨酯预聚体，而由苯乙烯（ST）和二乙烯苯（DVB）制得交联聚苯乙烯（PS），得到的渗透汽化膜可以进行水／乙醇混合液的分离，通过测试膜的性能，结果显示膜的分离效果较好，运用SEM对膜进行了表征。     

聚氨酯／聚丙烯酸酯类胶乳互穿聚合物网络的研制

采用两步法合成了聚氨酯（ＰＵ）聚丙烯酸酯（ＰＡＡ）胶乳互穿聚合物网络（ＬＩＰＮ）。试验结果表明ＰＵ／ＰＡＡ ＬＩＰＮ具有核壳结构。     

聚氨酯／聚丙烯酸酯类胶乳互穿聚合物网络的研制

采用两步法合成了聚氨酯聚丙烯酸酯（ＰＡＡ）胶乳互穿聚合物网络（ＬＩＰＮ）。试验结果表明ＰＵ／ＰＡＡ ＬＩＰＮ具有核壳结构。     

纤维素纤维增强聚氨酯／环氧树脂互穿网络硬质泡沫塑料的研究

本文采用聚醚多元醇重量份数１％的活性纤维素作为聚氨酯／环氧树脂互穿网络硬质泡沫塑料的增强材料，以提高物理机械性能，研究结果表明，添加极少量活性纤维即可显著提高泡沫塑料的压缩强度，拉伸强度及在１５０℃下的尺寸稳定性和耐热性。     

Morphologies and Mechanical Properties of Polyurethane/Epoxy Resin Interpenetrating Network Composites Modified with Kaolin

Polyurethane/epoxy resin (PU/EP)/dimethyl sulfoxide modified kaolin (PU/EP/K-DMSO) interpenetrating network composites were prepared by in situ intercalation method. FT-IR showed that hydrogen bonding existed between kaolin and PU/EP matrix. The structure of composites was characterized by XRD, SEM and TEM. The result indicated that: K-DMSO by a nanometer size and homodisperse in the PU/EP matrix. The analysis of images obtained by polarizing microscope showed that bubble diameter has decreased with the K-DMSO added. Mechanical test results indicated that: the tensile and compression strength of the PU/EP/K-DMSO composites are superior to those of the PU/EP IPNs.     

Thermal and X-Ray Diffraction Studies on Interpenetrating Polymer Networks of Soybean Oil-Based Polyurethane and Cardanol-Based Dye

The mixed ester polyol (MEP) is obtained from refined soybean oil on treatment with glycerol at 210°C in presence of lithrage. The probable structure of MEP was established by IR spectra. The polyurethane synthesized from MEP and diphenyl methane diisocyanate (DPMDI) with varying NCO:OH ratios were reacted with cardanol-o-aminophenol dye using ethyleneglycol dimethacrylate (EGDM) as a cross-linking agent and benzoyl peroxide as initiator. The PU was thoroughly characterized by IR spectroscopy. The thermal behavior of the Interpenetrating polymer networks was characterized by TG and the Morphology was studied by XRD studies.     

聚碳酸酯型聚氨酯—环氧树脂IPN的性能及结构形态

由甲苯二异氰酸酯和聚六亚甲基碳酸酯二醇制备聚氨酯预聚体,再由该预聚体、双酚A环氧树脂等用同步法合成了聚碳酸酯型聚氨酯-环氧树脂互穿网络聚合物（PCPU－EPIPN）。红外光谱分析表明PCPU和EP两组分间存在一定的化学结合。差示扫描量热分析及热重分析研究表明：IPN在高温区存在单一玻璃化转变峰,当PCPU与EP的质量比mU／mE＝25／75时,IPN的Tg最高且热稳定性最好。透射电镜和扫描隧道显微镜研究表明,PCPU与EP的配比对IPN的形态结构有显著的影响。应力-应变测试发现：当mU／mE＝25／75时IPN体系力学性能最佳。     

聚氨酯胶粘剂研究的进展

概述了近年来国内外聚氨酯胶粘剂研究开发和应用进展,重点介绍了聚氨酯胶粘剂的发展动态和几类主要的聚氨酯胶粘剂。针对我国实际情况对今后的发展作出了展望     

Studies on interpentrating polymer networks of polyurethane and polybismaleimide. I. Polyurethane and bismaleimide-urethane copolymer

The interpenetrating polymer networks (IPNs) of polyurethane (PU) and the mixture of bismaleimide (BMI) and the 2-hydroxylethyl methacrylate (HEMA)-terminated PU prepolymer (HPU) were prepared by using a simultaneous polymerization technique. The effects of the PU molecular weight and the amounts of the PU on the mechanical properties, thermal stability, and dynamic mechanical properties are discussed. The IPNs exhibited superior ultimate tensile strength as the polyol of PU and HPU in the IPNs is based on poly(tetramethylene oxide) (PTMO) glycol of molecular weight 1000 (PTMO1000). Izod impact property of the IPNs indicated that the PU(PTMO1000)/BMI-HPU(PTMO1000) IPNs had much more significant improvement than that of the PU(PTM02000)/BMI-HPU(PTMO2000) IPNs. Better thermal stability was shown by the IPNs as compared with the components of the networks, i.e. PU or BMI-HPU copolymers. The dynamic mechanical analysis (DMA) indicates that these IPNs show various shifts in the loss moduli(E) at the high and low temperature transition peaks for various molecular weight of the polyol employed in the PU. Better compatibility between BMI and PU was found as the PU(PTMO1000) was employed.To whom all correspondence should be addressed.     

三元互穿聚合物网络弹性体的合成与性能

合成了以聚氨酯 (PU)为第一网络的三元IPN聚氨酯 /环氧树脂 /聚丙二醇二丙烯酸酯 (IPNPU/EP/PPGDA)互穿聚合物网络。分析了IPN的力学性能和萃取特性 ,结果表明 ,三元IPN的组成对力学性能和萃取特性有明显影响。该种弹性体具有优异的耐溶剂性 ,乙酸乙酯连续热萃取率仅为 5 %～ 11%。综合性能优异的三元IPN弹性体组成为m(PU) /m(EP) /m(PPGDA) =70 /2 5 /5 ,其机械性能为 :Ts=34 7MPa ,E =437% ,回弹性R =37%     

纤维素纤维增强聚氨酯／酚醛环氧树脂互穿网络硬质泡沫塑料的研究

纤维素纤维作为聚氨酯／酚醛环氧树脂互穿网络硬质泡沫塑料的增强材料，以提高物理力学性能。研究结果表明：添加低重量份数的纤维素纤维即可显著提高泡沫塑料的压缩强度、拉伸强度及在１５０℃下的尺寸稳定性和耐热性。     

胶粘层对PU涂覆产品的影响

介绍了ＰＵ涂层产品加工中,胶粘层对涂覆产品的外观和内在性能的影响,说明了对于不同的ＰＵ涂覆产品应选择不同的加工方法,以满足各种产品的质量要求。     

PU/EP共混物中的化学反应及粘接性能的研究

合成聚氨酯（PU）预聚体同环氧树脂（EP）共混,加入扩链剂、交联剂,制得PU／EP复合材料,用红外光谱分析研究了共混体系中的化学反应,考察了两聚合物组成对聚合物网络间互穿程度的影响,研究了共混物的粘接性能。     

氰酸酯/聚甲基丙烯酸甲酯互穿聚合物网络的探究

用同步法合成了氰酸酯/聚甲基丙烯酸甲酯(CE/PMMA)互穿聚合物网络(IPN),研究了甲基丙烯酸甲酯(MMA)含量对CE/PMMA-IPN体系力学性能及密度的影响。结果表明CE/PMMA-IPN体系的性能比单一树脂的优异。