玻璃钢表面裂纹的探讨

玻璃钢表面裂纹的探讨钱传文（南京玻璃钢总厂２１００１１）为了保护玻璃钢制品的表面，改善制品的外观、耐气候性及耐水性等，常需在玻璃钢制品的表面涂上一层胶衣。不饱和聚酯胶衣具有高弹性、高冲击强度、耐气候性、吸水性低等优点；模具用胶衣树脂具有较好的耐磨性和...     

介绍一种玻璃钢废气治理系统

介绍一种玻璃钢废气治理系统孔祥文（中山市金马游乐设备实业公司５２８４０２）在生产聚酯玻璃钢时，有大量苯乙烯气体挥发出来；在玻璃钢喷漆时，也有相当多的有害溶剂挥发、飞散到环境中。玻璃钢生产产生的各种废气直接排放到大气中，不仅造成资源的浪费，也产生大气环...     

聚酯玻璃钢氙灯加速老化弯曲强度的分形现象研究

对聚酯玻璃钢进行实验室氙灯加速老化试验,测试了聚酯玻璃钢不同老化时间的弯曲强度。研究发现,弯曲强度与老化时间关系的现象是分形的,采用改变观察尺度计算方法对分形部分进行了分形维数的计算,得到聚酯的分形维数为1.24、含碳酸钙聚酯玻璃钢的分形维数为1.12、聚酯玻璃钢的分形维数为1.08,这说明氙灯加速老化下弯曲强度变化的复杂程度是按聚酯、含碳酸钙聚酯玻璃钢、聚酯玻璃钢顺序依次降低的。     

抗静电玻璃钢的研究和应用

本文对不饱和聚酯玻璃钢的静电消除、预防以及抗静电玻璃钢的应用等作一简单介绍。     

3301聚酯玻璃钢在硫铵生产中的应用

介绍了3301不饱和聚酯树脂及其整体玻璃钢制品的性能和应用情况，结果表明，聚酯玻璃钢设备和管道具有良好的耐腐蚀性能。     

玻璃钢筋增强水泥复合材料的性能研究

本文设计了不同成分配比的环氧、聚酯玻璃钢,并进行了力学性能和耐久性的试验研究,测定了在不同条件下钢筋、玻璃钢筋与水泥砂浆的结合强度。     

玻璃钢的阻燃机理与途径

本文介绍了玻璃钢的可燃性以及不同类型阻燃添加剂的阻燃机理,最后提出了提高聚酯玻璃钢和环氧玻璃钢阻燃性的途径。     

关于增进聚酯玻璃钢抗水泡化性能的研究与开发

水泡化是聚酯玻璃钢开始损坏的一种迹象。本文概述了聚酯玻璃钢水泡化的主要影响因素，以及增进其抗水泡化性能的整体增强结构设计的优化组合方案。     

阻燃剂在聚酯玻璃钢中的应用

本文介绍了各种阻燃剂和复合的阻燃剂对聚酯玻璃钢的阻燃效果。     

新型无机玻璃钢波纹瓦

以无机材料为胶凝剂,用玻璃纤维及其织物增强的复合材料,人们习惯通称为无机玻璃钢。由于其性能近似于普通聚酯玻璃钢,而在某些产品上又完全可以代替聚酯玻璃钢,同时又具有价格低廉、工艺方便、性能优异的特点,近年来,在合成树脂价格不断上涨的情况下,无机玻璃钢逐渐被人们所重视。 这里所说的无机玻璃钢,就是以普通氧化镁为胶凝材料,氯化镁为固化剂,添加少量辅助材料,用普通0.2mm玻璃布和废玻纤纱增强的无机玻璃钢波纹瓦。早在50年代,国内建筑行业就选用镁氧水泥加1/3的松木屑,浇铸门窗框     

不饱和聚酯树脂及其玻璃钢阻燃性的研究

本文以不饱和聚酯树脂为研究对象，探讨其浇铸体和玻璃钢的阻燃规律，寻求阻燃性能优异、力学性能满足要求、工艺可行、成本低的面板用树脂体系。     

DMC模塑面板的翘曲变形及其控制

探讨了结构、模具设计、模压工艺条件、整形处理及涂漆等因素对不饱和聚酯树脂DMC模塑面板翘曲变形的影响,并提出相应的控制措施。     

The potential of unsaturated polyesters in biomedicine and tissue engineering: Synthesis,structure-properties relationships and additive manufacturing

The success of Tissue Engineering (TE) based approaches is strongly dependent on the development of novel biomaterials for the design of 3D matrices with tailored biomechanical properties to promote the regeneration of human tissues and organs.This review covers the critical aspects related with the preparation of new unsaturated polyester (UP) resin formulations with suitable biological, chemical, thermal and morphological properties for the additive manufacturing (AM) of TE constructs. In this context, the basic principles of available AM technologies, with a special focus on novel stereolithography processes such as microstereolithography (micro-SLA), stereo-thermal-lithography (STLA), two-photon polymerization (TPP) and nanostereolithography (nano-SLA), are also presented and discussed. Ultimately, the present review will provide a better insight into the limitations and potential of combining UP and AM towards the rationale design/fabrication of complex artificial tissue substitutes.     

玻璃钢动态力学性能的实验研究

本文利用分离式Ｈｏｐｋｉｎｓｏｎ压杆研究了国产环氧玻璃钢和聚酯玻璃钢在平均应变率为１０＾３ｓ＾－＾１下的动态学力学性能，给出了这两种材料在冲击压缩下的弹性模量和能量吸收率，为新型飞行保护头盔的设计提供了材料的实验依据。     

Properties and Aggregate Structure of Unsaturated Polyester/Phenolic Resin Blends

In this study, unsaturated polyester resin (UP) is blended with resole type phenolic resin, co-crosslinking process performed and the resin blends show miscibility and interpenetration network (IPN) structure. Differential scanning calorimetry (DSC) and dynamic mechanical analysis (DMA) are employed to examine the aggregate structure of crosslinked network of the UP/phenolic resin blend. Tensile fractured sections of the resin blends are observed using scanning electronic microscopy (SEM) to shed light on their miscibility. Tensile and flexural tests were also conducted to examine the mechanical properties of the UP/phenolic resin blends. The results show that UP20/Ph80 and UP40/Ph60 resin blends have well-formed Interpenetrating Network (IPN) structures while phase separation is observed for UP60/Ph40 resin blend. Finally, thermal cure of UP80/Ph20 resin blend is incomplete, thus showing immiscibility. The mechanical properties of all resin blends at different mixing proportions deviate from a linear relationship and show a concave curve, indicating the non-additive effect of blending.     

Viscosities of unsaturated polyester resins: Combining effects of prepolymer structure,resin composition,and temperature

The effects of temperatures, styrene concentration, and molecular composition of unsat-urated polyester (UP) prepolymers on the viscosity of UP-styrene systems are studied. The viscosity of UP resins follows the Arrhenius-type expression with resin temperature as well as with the styrene molar fraction of the resin. The two Arrhenius correlations can be combined into a simple dual-Arrhenius equation by combination rule. This dual-Arrhenius equation comprises pseudo viscosity parameters of styrene monomer and UP prepolymer, respectively. The pseudo viscosity parameters of styrene monomer are experimentally found constant; while those of UP prepolymer seem to be number-average molecular weight correlated rather than weight-average molecular weight correlated. The UP prepolymers having different molecular structures show different pseudo viscosity parameters due to their own molecular interaction parameters. The pseudo viscosity parameters of UP'prepolymers should be determined experimentally for the time being. © 1996 John Wiley & Sons, Inc.     

Comparison of “all trans” enzymatically prepared unsaturated polyesters with chemically synthesized and industrial polyesters

The synthesis of unsaturated polyesters (UP) by high-temperature polycondensation is accompanied by isomerization of the double bond from the cis to the trans configuration. The presence of the trans double bonds facilitates crosslinking and may have an important influence on rheological and mechanical properties of the UP and the cured end product. All-trans polyesters are not available on the market. A study of “all-trans” low-temperature polycondensation based on chemical and enzymatic lipase catalysis was recently reported. This paper presents the characteristics of lipase-synthesized UP vs. general-purpose UP, as obtained by X-ray, differential scanning calorimetry (DSC), and other methods. In contrast to the commercial amorphous UP, crystallinity was found in the “alltrans” enzymatically and chemically synthesized UP. The crystallinity of the enzymatically and chemically synthesized UP. The crystallinity of the enzymatically synthesized UP was confirmed by higher values of elasticity. DSC analyses complemented the results obtained by other methodologies.     

苯乙烯对植物纤维渗透性及UP复合材料成型质量影响

为提高真空辅助树脂注射成型工艺制备植物纤维增强复合材料的生产效率和成型质量,以苯乙烯为稀释剂,以不同黏度不饱和聚酯树脂(UP)和苎麻织物制备苎麻织物增强UP复合材料.基于达西定律研究UP黏度对苎麻增强体渗透率的影响,结合复合材料纤维体积分数、力学性能以及内部缺陷对复合材料成型质量进行分析.结果表明,随着UP黏度降低,增...     

玻璃钢蒙皮/聚氨酯泡沫塑料夹芯结构无人机机翼制造（一）工艺方案设计

某型号无人机机翼为内部结构复杂的玻璃钢蒙皮／全容腔填充聚氨酯泡沫塑料夹芯结构,本文介绍了一种采用灌注发泡法制造该机翼的工艺技术,采用该技术制造的杨翼已经过了飞行试验并通过了系统设计定型。