喷射成型用玻璃纤维增强型浸润剂的研究

本文较详细地讨论了增强型浸润剂各组分的作用和影响增强型浸润剂性能的各种因素，分析了各成分对玻璃纤维性能及喷射成型工艺的影响，提出了合理的配方及配制工艺，通过实验最终得到了同时满足玻璃纤维生产工艺要求及喷射成型工艺要求的喷射成型用增强型浸润剂。该增强型浸润剂的应用提高了玻璃纤维的集束性、硬挺性和抗静电性等，这些性能的提高使喷射成型工艺更加完善，效率更为提高。     

新型增强型玻璃纤维浸润剂的研制

本文介绍一种新型水溶性树脂及用该树脂配制的增强型玻璃纤维浸润剂配方,以及该浸润剂的应用评价。     

玻璃纤维浸润剂性能的试验方法简介

玻璃纤维浸润剂必须提供某些物理性能,使玻璃纤维厂能够顺利地生产原丝和玻璃纤维产品的加工。用于增强有机聚合物的增强型浸润剂,还要赋予玻璃纤维原丝及玻璃纤维产品某些性能,使其在制造复合材料时能够顺利地操作;增强型浸润剂还必须具备一些化学性能,使复合材料在各种使用条件下,具有较好的物理、化学、力学、老化性能。评价一个浸润剂配方的性能优劣,一般要从以下四个方面来考虑: 一、浸润剂在拉丝作业中必须提供的性能在拉丝作业中,浸润剂把若干根单丝粘结为一股原丝,这就要求: 1.在拉丝作业中,起到保护单丝的作用,在生产厂和使用单位加工原丝的过程中,     

SB-j增强型玻璃纤维浸润剂的使用

玻璃纤维增强材料和树脂基体是玻璃钢的主要原材料。为了获得性能好、质量高的玻璃钢,除提高玻璃纤维和树脂性能外,还需改善树脂与纤维之间的界面状况。界面状况受着保留在玻璃纤维表面上浸润剂的影响。通常的做法是对玻璃纤维表面进行化学处理或使用增强型浸润剂。本文较系统的介绍了一种新型增强型玻璃纤维浸润剂SB-j浸润剂的使用情况。     

增强型玻璃纤维浸润剂的开发情况和今后意见

玻璃纤维浸润剂是使玻璃纤维产品具有不同性能和用途的重要的、不可缺少的组成部分。国外玻璃纤维企业十分重视对浸润剂的研究、开发和推广应用。在我国,随着玻璃纤维工业的发展,玻璃纤维用于增强材料的比重日益增大,对玻璃纤维产品提出了越来越高的要求,因此对增强型玻璃纤维浸润剂的研究开发也越来越得到重视,并取得了一定的成绩。但由于种种原因,到目前为止用增强型玻璃纤维浸润剂生产的玻璃纤维产品的实际用量仍然很少。     

略谈浸润剂配制之操作

略谈浸润剂配制之操作丹阳玻璃纤维厂武丹生浸润剂在玻纤生产中占有极其重要的地位，浸润剂质量的好坏，配方合理与否直接影响到无捻粗纱的质量和品质。在玻纤生产完善的条件下，凡更换一种浸润剂就能开发出一种新的增强型玻纤产品。在浸润剂基本原料性能及其配方已经确定...     

短切玻璃纤维增强型浸润剂试验

一、概述 生产玻璃毡与玻璃钢波形瓦时,要求玻璃纤维具有良好的短切加工性能与树脂浸透性能等,而我厂现用玻璃纤维的浸润剂无法达到这些要求,因此进行了短切玻璃纤维增强型浸润剂试验工作。 增强型浸润剂不仅要满足拉丝和短切加工要求,而且要满足树脂浸透性及复合材料性能要求。我们在国内已有原材料的基础上,着重做了改进纤维短切加工性能与改善树脂浸透性能工作。通过实验,小样试验,     

浅析增强型玻璃纤维浸润剂使用过程中的油泥现象

浅析增强型玻璃纤维浸润剂使用过程中的油泥现象新泰市玻纤玻钢总厂袁久勇１前言在连续玻璃纤维的拉制过程中，需要在玻璃纤维单丝表面涂覆一层有机混合物，即玻璃纤维浸润剂，以提供玻璃纤维拉制性能和加工性能。浸润剂在贮存、输送、涂覆使用各环节往往会在容器、管道、...     

浅谈增强型浸润剂

树脂与玻璃纤维之间的界面粘结好坏直接影响玻璃钢复合材料的性能。界面状况受着保留在玻璃纤维表面上浸润剂的影响。合理使用浸润剂使制品的力学性能:如干湿强度、电性能、耐湿性能及化学稳定性等均有明显提高和改善。更能满足制品在各种特定条件下的应用性能要求。无疑的,玻璃纤维增强型浸润剂的研究,有利于提高产品的性能,将推动着玻璃钢的发展。增强型玻璃纤维浸润剂一般是通过前处理工艺复盖在玻璃纤维表面上。当玻璃纤维制成玻璃钢时,浸润剂就在树脂/玻璃纤维之间形成一个界面层,界面面积是非常大的。按纤维直径为14微米,玻璃钢的包胶量为50％,则密度为1.7g/cm~3。计算就25×     

羟乙氨基聚酯树脂的合成及应用

阐述了羟乙氨基聚酯树脂的合成配方及工艺条件，用该树脂代替ＳＲ－１树脂配成增强型浸润剂进行玻璃纤维拉丝实验，获得良好效果。     

玻璃纤维增强热塑性片(板)材发展概况

分别介绍了国外3种玻璃纤维增强热塑性塑料产品即玻纤毡增强热塑性片材、短纤维增强热塑性片材和连续纤维增强热塑性片(板)材的发展概况、品牌产品、主要性能和用途,以期对我国玻璃纤维增强热塑性塑料产品的开发有所参考.     

电子级玻璃纤维生产原料选用、配方设计及质量控制

介绍了电子级玻璃纤维实际生产新原料的选用、配方设计、熔制氧化一还原状态量化管理。探讨各种原料质量控制。对比不同原料配方生产的拉丝成品率、满筒率、中空纤维、能耗等。阐述了各项控制指标的配合应用、精细化玻璃纤维生产管理。     

玻纤增强PP热塑性片材的制备及力学性能研究

采用熔融浸渍法制备了玻璃纤维毡增强聚丙烯（PP）热塑性复合片材；通过在PP中加入复合改性PP改善了基体与增强纤维间的相容性；考察了相容剂、PP种类及玻纤毡种类对复合片材的影响。结果表明，相容剂的加入可使复合片材的拉伸强度提高29％、拉伸模量提高23％、弯曲强度提高42％、弯曲模量提高25％；高熔体质量流动速率PP可使片材的弯曲与冲击性能进一步改善。连续玻纤毡和长玻纤毡增强PP复合片材，前者综合力学性能良好，而后者则冲击强度较弱、弯曲性能加强。     

Performance Improvement of Glass Fiber/Epoxy Composites Upon Integrating with N-(2-Aminoethyl)-3-aminopropyltrimethoxysilane Functionalized Graphene Oxide

Journal of Inorganic and Organometallic Polymers and Materials - Surface tuned GO sheets are considered the opportune pothunter for the reinforcement of conventional glass fiber reinforced...     

Stampable nylon sheets: Reinforcing with long glass fibers

Glass fiber reinforced thermoplastics have been utilized for many years in automotive and other high-performance applications. One of the newest processing methods for these materials is “stamping”, a process in which a reinforced thermoplastics sheet is heated and rapidly formed into a shaped object between matched metal dies. Advantages of products produced by this method include the following: parts consolidation, excellent strength, low cycle times even for very large objects, low finishing and tooling costs, and utilization of existing metal forming equipment. An extremely broad range of physical properties can be provided by tailoring both composition and construction of the composite sheets to the end-use requirements. The purpose of this paper is to discuss the material properties which can be achieved in stampable nylon-6 sheets as compared to corresponding injection molded compositions. The prime differences in composition between glass fiber reinforced stampable sheets and reinforced injection molded parts is the length and distribution of the glass fiber reinforcement utilized in each process. After injection molding, glass fibers are on the order of 0.015 to 0.030 in. in length, while after stamping the fibers may be of infinite length. This difference in length, in combination with the uniform fiber distribution obtained during stamping, leads to important improvements in heat and impact resistance and uniformity of properties.     

短切原丝毡用玻璃纤维增强型浸润剂的研究

本文主要叙述了短切原丝毡 (简称短切毡 )用玻璃纤维增强型浸润剂的试验研究过程 ,重点讲述了短切毡用原丝必须具备的性能 ,通过实验最终得出了同时满足拉丝工艺、烘干工艺和短切毡成毡工艺的玻纤增强型浸润剂。该浸润剂赋予原丝良好的集束性、切割性、分散性和快速的浸透性 ,并提出满足这些性能原丝的硬挺度必须适中 ,这样的原丝才能生产出优质的短切毡     

玻纤增强基材的创新与发展

分析了当今下游复合材料工业的发展对玻纤增强基材发展的需要。重点介绍了风电叶片用玻纤纱、技术织物、复合织物、预浸渍制品、预成型增强体等各类玻纤增强基材以及增强热塑性塑料用的短切纤维、混合纱、LFT、GMT、GMT-D、LFT—D、增强热塑性片材等各类玻纤增强基材。并为玻纤增强基材如何促进这两类复合材料产品的发展提出建议。     

Microscopical damage mechanisms in glass fiber reinforced polypropylene

The damage mechanisms in two structurally different glass mat reinforced polypropylene materials were studied. In situ microscopy was applied during the tensile testing of thin notched sheets. Micrographs of the damage processes in the two materials are presented. The major points of damage initiation were transversely oriented fibers and fiber bundles. In the swirled mat material, cracks grew along the fiber bundles; crack formation and growth was relatively unaffected by macroscopical stress concentration. In the short fiber material, crack growth occurred at the notch. In both materials the maximum load was determined by the fibers oriented in the longitudinal direction. The different damage mechanisms were interpreted in terms of damage zone size. © 1998 John Wiley & Sons, Inc. J Appl Polym Sci 69: 1319–1327, 1998     

Model for Sintering Devitrifying Glass Particles with Embedded Rigid Fibers

We extend the Clusters model to account for the presence of rigid inclusions and use it to analyze the experimental sintering kinetics of composites of 60SiO₂·24B₂O₃·16Na₂O glass particles and zirconia fibers. We followed the densification kinetics of such composites as a function of the particle size, volume fraction of fibers, fiber to pore size ratio, temperature, and time of thermal treatment. The parameters of the extended Clusters model are the glass particle size distribution and shape factor, the fiber volume fraction and radii, the glass viscosity and surface tension, the number of nucleating sites per unit surface, and the crystal growth rate in the parent glass. Hydrostatic tensions caused by the fibers were also included in the calculations. The modified Clusters model with only one adjustable parameter, which is largely dominated by viscosity but also includes particle shape, allowed us to account for the effect of surface crystallization and fiber content as inhibitors of densification and successfully describe the sintering kinetics of the studied composites.     

Elastic modulus prediction based on thermal conductivity for silica aerogels and fiber reinforced composites

The speed of sound is a critical parameter in the test of mechanical and thermal properties. In this work, we proposed a testing method to obtain the elastic modulus of silica aerogel from the sound speed formulas. The solid thermal conductivity of the silica aerogel is experimentally measured for predicting the sound speeds, and then the elastic modulus is calculated based on the elasticity sound speed model. The experimental data of the solid thermal conductivity of silica aerogels with different densities are employed and the obtained elastic modulus is fitted as a power-law exponential function of the density. Two existing sound speed models and three groups of available experimental data are also employed to validate the present fitting relation, and good agreement is obtained for the silica aerogel in the density range of 150–350 kg/m³. The fitting formula can also be extended to estimate the elastic modulus of the glass fiber-reinforced silica aerogel composite. The results show that the elastic modulus of the aerogel composite is sensitive to the glass fiber volume fraction, while the thermal conductivity is weakly dependent on the glass fiber volume fraction at room temperature in the studied range of fiber volume fraction.