光敏聚酰亚胺的研究与应用进展

光敏聚酰亚胺因其优良的综合性能,被广泛地应用于微电子领域的绝缘层和保护层等。本文综述了光敏聚酰亚胺(PSPI)的最新研究进展、发展概况,并且分别对负性光敏聚酰亚胺和正性光敏聚酰亚胺的结构、性能、合成方法以及相关材料的实际应用进行了系统的阐述。     

光纤涂料

9905194光敏聚酞亚胺的进展及其在光纤涂料中的应用[l=U]/吴立华等//涂料l:业一199{),29(6)一36一38 概述了负性光敏聚酚亚胺的研究进展和光纤涂料当前研究的热点,提出了将负性光敏聚酞亚胺用于耐高温光纤涂料的新设想。参2:29905195光纤涂覆用固化速度快的辐射固化组合物:w098一39374〔国际专利申请,英]/荷兰:Dsm.N.V(Chawla,Chander Prakash等)一1998.9.11一科页,一US40725(1997.3.7):IPC C08G18/81 ·种可辐射固化的组合物含有可辐射固化的单体或低聚物,如氨从甲酸醋丙烯酸醋,包括可提高固化速度的辐射固化单体或低聚物(带有多l个…     

负性光敏聚酰亚胺的研究进展

综述了负性光敏性聚酰亚胺的研究进展,着重介绍了商业上广泛使用的3种类型的光敏性聚酰亚胺的优缺点及对其的改性工作,并对这种材料的发展给予了展望.     

聚酰亚胺的改性及应用进展

介绍了聚酰亚胺的合成工艺路线和研究动向,重点介绍了可溶性聚酰亚胺和透明性聚酰亚胺.对聚酰亚胺在新领域中的应用进行了概述,尤其采用光敏聚酰亚胺应用于紫外光（UV）固化耐高温涂料体系的可行性进行了展望.     

Ube Industries首创光敏性聚酰亚胺

日本Ube Industries公司首创了一种电子级光敏性聚酰亚胺,可用作涂料聚合物。这一     

水性涂料

200606055 含醌酮二叠氮化物磺酸酯光敏剂的正性光敏聚酰亚胺涂料组合物;200606056 耐油和油脂渗透性好的屏蔽涂料组合物；200606057 透明硬涂层用组合物及其制备；200606058 快干水性涂料组合物；200606059 耐热树脂组合物及基于该组合物的水稀释涂料。     

涂料技术市场

快速固化内层光纤涂料湖北省化学研究所与武汉邮电科学院密切协作,研制成功WF-102UV快速固化内层光纤涂料,于1986年11月通过湖北省科委组织的技术鉴定。该涂料以有机硅丙烯酸酯、聚氨酯丙烯酸酯两种光敏树脂为基料,用交联度调节剂改性,加入高效光敏剂和增感剂制成。涂     

光敏型聚酰亚胺的研究进展

光敏型聚酰亚胺(PSPI)是一类在高分子链上兼有光敏基团和亚胺环的高性能高分子材料。光敏型聚酰亚胺是具有优良的机械强度、热稳定性、化学稳定性和低介电常数的高性能材料,因而其广泛应用于微电子、航空航天及光电子等领域。主要介绍了近几年来光敏型聚酰亚胺树脂的合成及应用,并对其发展的方向进行了讨论。     

光敏聚酰亚胺抗蚀剂的研究

光敏聚酰亚胺是近２０年来随着微电子工业的发展而迅速崛起的一类新型高分子材料，它广泛应用于微电子领域，在航空航天等尖端工业中也有着重要用途．预亚胺化可溶性负性光敏聚酰亚胺光致抗蚀剂在简化光刻工艺，增强耐热性，提高图形留膜率等方面具有诱人的前景［１～２］．１　实验部分１－１　材料（１）利用３种二胺单体分别和二苯甲酮四羧酸二酐（ＢＴＤＡ）和少量活性偶联剂———二氨基二苯氧基二甲基硅烷通过低温溶液缩聚高温化学亚胺化的方法制备了３种光敏树脂，并采用ＩＲ、ＵＶ、ＤＳＣ、ＴＧＡ等方法对所得树脂的结构和性能进…     

UV树脂对UV涂料附着力的影响规律探索

UV树脂(光敏树脂)对UV涂料(光敏涂料)的附着力受到多种因素的影响,本文首先阐述了光敏树脂与光敏涂料,其次分析了紫外光固化树脂涂料的配方和控制底漆的固化程度对光敏涂料附着力的影响。     

Interfacial adhesion between embedded fibre optic sensors and epoxy matrix in composites

Fibre optic (FO) sensors are becoming increasingly popular for different applications in structural monitoring. Among their excellent properties, a strong interest for this type of sensors are represented by the possibility of embedding FOs inside composite components. In this case, one of the factors that significantly influence the efficiency of the whole Structural Health Monitoring (SHM) system is the interfacial adhesion between FO sensors and the host material. The main objective of this work is to investigate the interfacial adhesion between embedded fibre optic sensors and epoxy matrix to find the best type of optical fibre to be used in epoxy matrices to produce smart composites. Four types of optical fibres with different diameters and coatings (i.e. polyimide, polyacrylate and ormoceramic) were used. Pull-out tests were carried out and different methods were used to obtain the composite/optical fibre interfacial properties. Finally, an optical microscopy and Scanning Electron Microscopy (SEM) analysis were performed to characterize the fibre/matrix interfaces. It was found that the optical fibre that presented the highest energy required for interface rupture and, consequently, less invasiveness to the host material was the ormoceramic fibre with the smallest diameter.     

Surfactant effect on DLP fabrication of silica fibre preforms

Three-dimensional (3D) printing based on digital light processing (DLP), for its great advantage in dealing with material and structural complexities, is being engaged for the fabrication of custom-designed silica optical fibre preforms. Resin preparation and printing are key processes critical to DLP fabrication of optical fibre preforms with high silica loading. In this work, the surfactant effect on preparation of resin and DLP printing of optical fibre preforms for higher silica loading is investigated. Based on our experimental studies of the rheological and photocuring properties of resins and the quality of printed silica fibre preforms, we find that, in the case where 2-phenoxyethanol (POE) is usually added as the surfactant, the resin has higher viscosity and results in poorer preform quality. By removing POE from resin ingredients and designing a multi-step resin processing with appropriate settling and degassing processes, fibre preforms with high silica loading up to 0.8 (w/w) have been successfully fabricated.     

The Interfacial Bond Strength in Glass Fibre-Polyester Resin Composite Systems

The interfacial bond strength in glass fibre-polyester resin composites has been investigated using various experimental techniques. These included blocks of resin containing fibre (in which, depending on the geometry of the specimen, failure occurs in either a shear or tensile mode) the pullout of a fibre from a disc of resin and a short beam shear test for interlaminar shear strength determination.

Low power optical microscopy and optical retardation measurements of stress induced birefringence were used to detect the difference between intact and debonded fibre resin interfaces. The shear modulus and shear strength of the resin were obtained from torsion tests on cylindrical rods of the resin.

The single fibre shear debonding specimen and the short beam shear test are shown to be the most viable test methods but interpretation of the results is complicated by the various modes of failure possible and by the different stress states which exist in the area of the specimen where debonding starts. Stress concentration factors obtained by finite element analysis and photoelastic analysis have been applied to the results from these tests and the corrected interfacial bond strengths are in close agreement.

The real interfacial bond strengths of well bonded glass-fibre polyester resin systems is shown to be of the order of 70 MN m^-2.     

The Interfacial Bond Strength in Glass Fibre-Polyester Resin Composite Systems

The interfacial bond strength in glass fibre-polyester resin composites has been investigated using various experimental techniques. These included blocks of resin containing fibre (in which, depending on the geometry of the specimen, failure occurs in either a shear or tensile mode) the pullout of a fibre from a disc of resin and a short beam shear test for interlaminar shear strength determination.

Low power optical microscopy and optical retardation measurements of stress induced birefringence were used to detect the difference between intact and debonded fibre resin interfaces. The shear modulus and shear strength of the resin were obtained from torsion tests on cylindrical rods of the resin.

The single fibre shear debonding specimen and the short beam shear test are shown to be the most viable test methods but interpretation of the results is complicated by the various modes of failure possible and by the different stress states which exist in the area of the specimen where debonding starts. Stress concentration factors obtained by finite element analysis and photoelastic analysis have been applied to the results from these tests and the corrected interfacial bond strengths are in close agreement.

The real interfacial bond strengths of well bonded glass-fibre polyester resin systems is shown to be of the order of 70 MN m^?2.     

Photochemical formation of palladium patterns on surface-modified polyimide resin

A simplified method for forming a palladium circuit pattern on polyimide resin substrate was proposed. The carboxyl group, as a cation exchange group, was formed on the polyimide resin surface by a potassium hydroxide treatment. Palladium(II) ion was then adsorbed onto the surface modified polyimide resin by ion exchange. Ultraviolet irradiation of this palladium(II) ion absorbed resin with sodium formate coated on its surface resulted in the formation of a palladium thin film. Irradiation through a metal-on-quartz mask onto the modified polyimide resin surface photoreduced the palladium ion into metallic palladium circuit patterns easily without using a plating resist.     

高性能聚酰亚胺复合材料的研究进展

综述了国内外高性能聚酰亚胺复合材料的研究进展,主要包括以双马来酰亚胺树脂、反应型聚酰亚胺（PMR型聚酰亚胺）树脂及乙炔基封端聚酰亚胺树脂作为基体材料的复合材料,也包括以聚酰亚胺纤维作为增强体的复合材料,针对结构与性能的关系以及材料的性能优化进行了介绍,并对聚酰亚胺复合材料的发展方向进行了展望。     

光固化光纤彩色涂料的研制

采用环氧丙烯酸酯和脂肪族聚氨酯丙烯酸酯共混的方法研制了一种新型光固化光纤彩色涂料。研究了基料树脂、活性稀释剂、光引发剂、颜料、助剂等对涂料综合性能的影响。结果表明，环氧丙烯酸树脂与脂肪族聚氨酯丙烯酸酯配比为40：20，单、双、多官能团稀释单体配比为3：20：10，复合光引发剂用量10％，有机颜料用量1．5％，所配制的光固化光纤涂料性能优良。     

Effect of heat and mechanical effects on optical fibres with different coatings

The effect of different coatings on the sensitivity of an optical fibre to heat and mechanical effects was investigated. The thickness of the coatings at which the sensitivity of the fibres to external effects is not a function of random variations in its diameter was determined. The values of the coefficients of the sensitivity of the fibre to external effects for a determined coating thickness were found. Moscow State Textile University. Translated fromKhimicheskie Volokna, No. 6, pp. 52–53, November–December, 1999.     

聚酰亚胺改性环氧树脂研究进展

用聚酰亚胺改性环氧树脂是得到高性能环氧树脂的有潜力途径。介绍了2种合成聚酰亚胺改性环氧树脂的方法:聚酰亚胺共混改性环氧树脂和聚酰亚胺固化剂固化环氧树脂,以及其树脂的结构和性能,并对其应用前景进行了展望。     

水性聚氨酯涂料光泽控制——理论与实践

光泽作为涂料的一个重要的美学价值体现,很大程度上影响涂装产品的客户需求。为了控制水性聚氨酯涂料的光泽,需要从理论上了解涂料光泽与树脂结构的关系。文章首先介绍了涂料光泽的基本理论,在理论基础上探讨了水性聚氨酯结构(聚合物结构的反射率、折射率、分散体粒径、涂膜表面粗糙度以及成膜过程)对涂料光泽的影响。