互穿聚合物网络阻尼材料

综述了近年来国内外有关阻尼材料的研究成果,提出互穿聚合物网络（ＩＰＮ）作为一种阻尼材料,具有其他类型高分子材料不能比拟的优势,同时展望了ＩＰＮ阻尼材料的研究前景。     

互穿聚合物网络阻尼材料研究进展

综述了互穿聚合物网络(IPN)阻尼材料的阻尼理论,阻尼性能的评价方法;对IPN阻尼材料的制备和应用进行了评述,并展望了高性能IPN阻尼材料发展趋势和应用前景。     

互穿聚合物网络阻尼性能的评价

从聚合物相容性及形态结构，单体结构和单体配比等几方面对互穿聚合物网络（ＩＰＮ）阻尼性能的影响进行了讨论。在此基础上提出一种简便和定量的评价ＩＰＮ阻尼性能的方法：△ＬＰ＝１０ｌｏｇ（Ｑ／４πｒ＾２＋４／Ｒ１）／（Ｑ／４π／Ｒ２）；并指出ＩＰＮ阻尼材料的有效ｔａｎδ下限为０．３。     

卫穿聚合物网络阻尼材料研究进展

综述了互穿聚合物网络（IPN）阻尼材料的阻尼理论,阻尼性能的评价方法,对IPN阻尼材料的制备和应用进行了评述,并展望了高性能IPN阻尼材料发展和应用前景。     

聚氨酯阻尼材料研究进展

对聚氨酯阻尼材料的阻尼原理、成型方法、性能评价、影响其阻尼性能的关键因素、材料用途等方面作了综述,展望了其应用前景。     

聚氨酯互穿网络聚合物的研究进展

概述了聚氨酯－丙烯酸酯互穿网络溶液法和乳液法合成工艺，性能：介绍了环氧丙烯酸酯－聚氨酯，聚碳酸酯－聚氨酯互穿网络的合成工艺，性能及研究进展。     

新型三元互穿聚合物网络阻尼材料的研制

采用平衡溶胀工艺,合成了具有宽温域、高阻尼值的新型三元互穿聚合物网络.透射电镜证明了乳液交联反应的发生和互穿网络的结构.分别通过对乳液及乳胶膜性能的测试和比较,发现三元互穿聚合物网络相容性和阻尼性均优于二元互穿聚合物网络.     

聚苯乙烯互穿聚合物网络研究进展

综述了聚苯乙烯互穿聚合物网络的研究进展,阐述了分步互穿聚合物网络、同步互穿聚合物网络、半互穿聚合物网络和胶乳互穿聚合物网络的制备方法,介绍了组成和制备方法对PS互穿聚合物网络的相态结构和互穿聚合物网络相容性的影响。阐述了PS互穿聚合物网络的组成和结构对于力学性能、热力学性能、流变性能、气体透过率和吸附性的影响,最后综述PS互穿聚合物网络存在的问题及发展趋势。     

聚氨酯／环氧树脂互穿聚合物网络阻尼性能的研究

本文采用同步法合成一系列聚氨脂/环氧树脂(PU/EP)IPN 试样,研究改变多元醇类型,分子量大小,交联剂(3OH/2OH)及催化剂用量等对 IPN 阻尼性能、形态和涂膜的力学性能的影响规律。结果表明,聚氨酯所采用的多元醇链结构越柔曲、分子量越大,阻尼温度区间越宽广,涂膜的力学性能也越好。IPN 的互穿程度随交联剂(30H/2OH)的提高而增加,动态力学谱上两个为Tg 转变峰消失变为单一Tg 转变峰,相分离逐渐减少,电镜形态分布证实了上述结果。     

丙烯酸酯系胶乳互穿聚合物网络的合成及阻尼性能

以种子乳液聚合法合成了聚苯乙烯／聚丙烯酸乙酯、聚甲基丙烯酸乙酯／聚丙烯酸丁酯的核-壳胶乳互穿聚合物网络(LIPN),分别测试了不同配比LIPN及其共混物的阻尼性能、物理机械性能和吸水性能。结果表明,LIPN共混物是具有阻尼温域宽、阻尼性能优、物理机械性能良好和吸水率较低的阻尼材料,其阻尼性能主要取决于共混组分的性能、配比和内耗能的贡献,并且与共混物的织态结构也密切相关。     

Correlation between mechanical damping and interphase content in interpenetrating polymer networks

Recently, some interpenetrating polymer networks with good mechanical damping properties have been synthesized. However, the effect of morphology on this property has not yet been clearly elucidated. Herein, two polystyrene–polyurethane interpenetrating polymer networks, which were grafted using TMI [benzene‐1‐(1‐isocyanato‐1‐methyl ethyl)‐3‐(1‐methylenyl)] and HEMA (2‐hydroxyethyl methacrylate), respectively, have been investigated, as model samples, by modulated‐temperature differential scanning calorimetry and by dynamical mechanical thermal analysis. The results indicate that there is a correlation between mechanical damping and both interphase content and the distribution of composition in the interphase region. The findings should provide valuable information for the design of future damping materials. © 2001 John Wiley & Sons, Inc. J Appl Polym Sci 81: 2439–2442, 2001     

PMMA/P(BA-co-AA)界面交联LIPN阻尼材料的研究

用种子乳液聚合法合成了PMMA／P（BA－co-AA)界面交联乳胶互穿聚合物网络材料。动态力学谱结果表明，界面交联能提高乳胶互穿聚合物网络的高温阻尼性能；拉伸实验结果表明，界面交联提高了乳胶互穿聚合物网络的抗拉强度和断裂伸长率。     

具有良好阻尼性能的蓖麻油互穿网络弹性体

由蓖麻油、甲苯二异氰酸酯(TDI)、单端羟基(甲基)丙烯酸酯预聚物及/或(甲基)丙烯酸酯单体出发,在二丁基二月桂酸锡及氧化还原引发剂存在下合成了四种接枝型互穿网络聚合物(IPN)。研究了产物的力学性能及动态力学性质。结果表明,某些接枝IPN,例如蓖麻油/TDI/单端羟基甲基丙烯酸丁酯预聚物/单端羟基丙烯酸丁酯预聚物组成的IPN,蓖麻油/TDI/丙烯酸丁酯单体/单端羟基甲基丙烯酸乙酯预聚物组成的IPN及蓖麻油/TDI/甲基丙烯酸乙酯单体/单端羟基甲基丙烯酯丁酯预聚物组成的IPN均呈现突出的阻尼行为,tanδ>0.3的温度范围很广,而且最大的tanδ大于1.1。这些IPN呈现良好的橡胶样力学性能。     

国内互穿网络结构阻尼涂料的研究进展

在总结了国内聚合物基阻尼涂料的研究基础上,详细综述了互穿网络(IPN)结构、乳液互穿网络(LIPN)结构聚合物基阻尼涂料的种类及研究现状,并展望了聚合物基阻尼涂料研究的发展趋势和前景。     

宽温域高阻尼互穿聚合物网络材料的结构与性能

以环氧丙烯酸酯和甲基丙烯酸丁酯(二者质量比为2/1)混合物为乙烯基酯树脂(VER)。1,4-丁二醇为扩链荆,采用“同步互穿”工艺,室温下与聚氨酯(PU)预聚物固化制备了低温至室温区阻尼温域近70℃、损耗因子(tanδ)大于0．4的PU/VER互穿聚合物网络(IPN)。结果表明,当PU/VER(质量比,下同)为70/30时,IPN的tanδ大于0.7的阻尼温域近40℃。采用傅里叶变换红外光谱仪及原子力显微镜考察了试样的连续相构成及微观结构表明,形成的双相连续“同步互穿”体系的相畴尺寸在纳米级范围,组成比为70/30的IPN较50/50者相容性好。力学性能测试结果表明,随VER用量的增加．试样具有由弹性到脆性的形变规律。     

互穿聚合物网络研究进展

综述了互穿聚合物网络（ＩＰＮ）研究的进展，介绍了ＩＰＮ在体系，表征，应用等方面的新动向。     

Characterization of castor oil–based interpenetrating polymer networks of PU/PS

A series of interpenetrating polymer networks (IPNs) of polyurethane/polystyrene (PU/PS; 90/10, 75/25, 60/40, and 50/50) have been synthesized by condensation reaction of castor oil with methylene diisocyanate and styrene, employing benzoyl peroxide as initiator. Polystyrene is extracted from IPNs by the Soxhlet extraction method. The IPNs of PU/PS before and after PS extraction were characterized for physical, optical, and X-ray diffraction properties. © 1998 John Wiley & Sons, Inc. J Appl Polym Sci 68: 1739–1743, 1998     

Improved toughening diamine-based polybenzoxazines constructed by controllable curing in polyhexahydrotriazine interpenetrating polymer networks

A series of diamine-based polybenzoxazine (PDMB)/polyhexahydrotriazine (PHT) interpenetrating polymer networks (IPNs) were successfully prepared by sequential polymerization. For the IPN structures, the mechanical and thermal properties were explored. Fourier transform infrared spectrometric studies provide evidence of intermolecular hydrogen bonding (OH…O) between PDMB and PHT, and the compatibility of these two polymers was enhanced by this hydrogen bonding. The homogeneous structures in the PDMB/PHT IPNs with a micro-level phase separation were observed from scanning electron microscope analysis. PDMB, however, is too fragile to form a film. Compared to pure PHT, PDMB/PHT IPNs exhibit 190% higher tensile strength and 284% higher elongation. PDMB/PHT-0.8 reaches an elongation at break of 12.40% and tensile strength of 118.67 MPa, showing better mechanical properties than the other PDMB/PHT IPNs. Results of dynamic thermomechanical analysis indicate a higher heat resistance for PDMB/PHT-0.8, and its glass transition temperature reached 238 °C. © 2022 Society of Chemical Industry.     

Structure and damping properties of polydimethylsiloxane and polymethacrylate sequential interpenetrating polymer networks

By using the technology of the sequential interpenetrating polymer network, a series of novel damping materials based on a polydimethylsiloxane (PDMS)/polyacrylate (PAC) matrix with polymethacrylate (PMAC) were synthesized. They have a controllable broad transition peak spanning the temperature range of 150–220°C and the medial value of loss factor with maximum of 0.35–0.60. Dynamic mechanical analysis (DMA), differential scanning calorimetry (DSC), and atomic force microscopy (AFM) were applied to analyze and characterize the transition behavior and the microphase structure of the materials. It was found that the size and height of a transition peak at both the low‐ and the high‐temperature zones change as a function not only of the concentration of PMAC and PDMS but also of the kind of PMAC; simultaneously, the low‐ temperature behavior was also governed by the crystallization of PDMS. The content of the crosslinking agent exerts a significant influence on the configuration of the curves of the transition peaks. AFM shows a characteristic phase morphology of double‐phase continuity containing a transition layer and domain less than 1 μm, indicating that the interwoven multilayer networks are the key to incorporation of the immiscible components and form a broad damping functional region. © 2002 Wiley Periodicals, Inc. J Appl Polym Sci 85: 545–551, 2002