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玻璃纤维复合毡,加筋毡研制和生产最早是在英国和美国.复合毡、加筋毡适用于煤焦油及石油沥青的热浸渍作业,作为涂层的加强材料,一般加筋毡作为内缠绕带,复合毡为外缠绕带. 我厂从1990年9月份开始试制,经过一年多的努力,我们研制开发复合网布,加筋用纱,专用的复合粘结剂,并研制成功了复合毡、加筋毡生产线,现已生产近140万m~2.由于该产品生产工艺条件要求 相似文献
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玻纤增强PP热塑性片材的制备及力学性能研究 总被引:1,自引:0,他引:1
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。 相似文献
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无缀玻璃纤维针织复合毡及原料的质量秦皇岛仙岛复合材料有限公司田继岚1概述无缀玻璃纤维针织复合毡也称缝编毡。它是一种无纺玻纤制品,是做玻璃钢产品的新型增强材料。复合毡是用缝编机,把玻璃纤维无捻粗纱,按特定方向排布,缝制成毡。它比以往其它种类的增强材料具... 相似文献
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介绍了启动型铅酸蓄电池的四大主要隔板之一,由玻纤薄毡和玻璃纤维纸复合而成的铅酸蓄电池复合玻璃纤维隔板(简称复合隔板)。由于复合隔板的玻纤薄毡使用上的特殊要求,基质量受诸多因素的影响,其中蓄电池用玻纤薄毡的氯含量,将会直接影响蓄电池的使用寿命。针对蓄电池用玻纤薄毡生产中出现的氯含量超标的质量问题,进行了氯含量的分析测定。结果表明:纤维素中的氯离子含量过高是引起产品不合格的主要原因。并将实验结果应用于生产,解决了蓄电池用玻纤薄毡的质量问题。 相似文献
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<正> 针织复合毡是在短切毡与方格布缝编复合毡的基础上研究出来的,它去掉了传统织物的皱褶,即方格布生产工艺中的经纬交联而形成的皱褶,实际上它既不同于普通的玻纤布,也不同于通常概念的毡。针织复合毡中纤维的平直排列可充分发挥纤维的强度和刚度,使复合材料的性能得到明显提高。国外有文献报道,在同样纤维体积比下,复合毡增强的复合材料比普通织物增强的复合材料抗拉模量高出一倍,吸收冲击能量也高出一倍以上。所以,近年来,欧美的 相似文献
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由玻纤薄毡和玻璃纤维纸复合而成的铅酸蓄电池复合玻璃纤维隔板(简称复合隔板),是启动型铅酸蓄电池四大主要隔板之一。复合隔板的玻纤薄毡使用上有特殊要求,其质量的好坏,固然受诸多因素的影响,其中蓄电池用玻纤薄毡的KMnO4还原物,将会直接影响蓄电池的使用寿命,对生产厂家的产品合格率、优质品率及企业效益产生深刻影响。本文针对蓄电池用玻纤薄毡生产中出现的KMnO4还原物超标的质量问题,在实验室中对与生产有关的化工原料、玻纤纱、水,参照机械工业部JB/T7630.1-1998《铅酸蓄电池超细玻璃纤维隔板》的测试方法,按照生产工艺配方,将生产中所涉及到的化工原料制作成供测试用的分析试样,进行KMnO4还原物的分析测定。结果表明:纤维素中的KMnO4还原物过高、烘干温度过低是引起产品不合格的主要原因。并将实验结果应用于生产,解决了蓄电池用玻纤薄毡的质量问题。 相似文献
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研究了热塑性树脂PP(聚丙烯)浸渍黄麻纤维毡的速率及相关因素,以解决天然纤维毡增强热塑性复合材料中连续熔融浸渍,考察了浸渍速率、温度等参数对其加工成型及力学性能的影响.用改装的毛细管流变仪作为实验装置,以一维Darcy定律处理实验数据,研究了压力对毡体空隙率以及熔体粘度对浸渍速率的影响.结果显示,相同的压力下,浸渍速率和熔体粘度成反比,麻纤维毡的压缩空隙率都要高于玻璃纤维毡.通过对纤维毡体结构、可压缩性、纤维直径以及毡体渗透率进行对比,进一步讨论了纤维毡浸渍速率的影响因素.表明麻纤维平均直径远大于玻璃纤维,纤维堆叠产生的空隙明显大于玻璃纤维且在麻纤维毡中不存在玻璃纤维毡中的束内浸渍,麻毡的浸渍速率约为玻纤毡的3.5倍,平均渗透率K约为玻纤毡的14倍.运用毛细管模型计算了两种毡体的Kozeny常数,其值分别为2950和442. 相似文献
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介绍了玻璃纤维工业自上世纪30年代末工业化生产以来,经过60多年发展形成的特点和“十五”期间我国玻璃纤维工业发展概况。探求了“十一五”期间的发展机会。描述了我国针织物、湿法毡、涂层织物、连续原丝毡、针刺毡等产品的发展情况和圣哥班集团玻纤产品开发概况。 相似文献
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以工业废渣为主要原料研制了低温一次快烧生料无光釉,分析探讨了废渣无光釉的化学组成和烧成条件,该釉不仅适于一次低温快烧工艺,而且可显著降低釉料成本,在墙地砖生产中有较大应用价值。 相似文献
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Impregnation rate of thermoplastic resin (polypropylene) in jute fiber mat and influence of relative factors on impregnation were studied, aiming to develop the continuous melt impregnation technique and to investigate the effect of impregnation rate and temperature on processing conditions and mechanical properties of natural fiber mat-reinforced thermoplastics. Influence of pressure on porosity of fiber mat and effect of melt viscosity on impregnation rate were also investigated. The modified capillary rheometer was used as apparatus and experimental data were analyzed based on the one-dimension Darcy’s law. Results showed that at a given pressure, the impregnation rate is inversely proportional to melt viscosity and jute fiber mat has higher porosity than glass fiber mat. The architecture, compressibility, permeability and fiber diameter of jute fiber mat were compared with those of glass fiber mat and their effects on impregnation were discussed further. It could be seen that the average diameter of jute fiber is much bigger; the porosity of jute fiber mat is significantly higher and inner bundle impregnation does not exist in jute fiber mat. Therefore, it is not difficult to understand why the impregnation rate in jute fiber mat is 3.5 times higher and permeability is 14 times greater. Kozeny constants of jute and glass fiber mats calculated based on the capillary model are 2950 and 442, respectively. 相似文献
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介绍了玻璃纤维工业自上世纪30年代末工业化生产以来,经过60多年发展形成的特点和“十五”期间我国玻璃纤维工业发展概况。探求了“十一五”期间的发展机会。描述了我国针织物、湿法毡、涂层织物、连续原丝毡、针刺毡等产品的发展情况和圣哥班集团玻纤产品开发概况。 相似文献
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为了提高乳剂毡的粘结性,尤其是毡的浸透性、力学性能,研究了粘结剂配方中丙烯酸、丙烯酸丁酯、丙烯酸异辛酯、自制特殊单体以及乳化体系、单体配比等对粘结剂性能的影响。其主要是在合成过程中尽量调整最佳单体配比、乳化剂用量,尽量减小毡在苯乙烯中浸透速度、浸透终态的影响。 相似文献
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Manohar Kakunuri Nandula D. Wanasekara Chandra S. Sharma Mudrika Khandelwal Stephen J. Eichhorn 《应用聚合物科学杂志》2017,134(15)
Three‐dimensional polymer nanofibrous mats with tunable wettability have been fabricated using a single step non‐conductive template assisted electrospinning process. Cellulose acetate nanofibers are electrospun over a nylon mesh, which acts as the template. The as‐deposited fiber mat is removed from this template to produce a free standing three‐dimensional micropatterned nanofibrous mat. By simply varying the template mesh dimensions, the fraction of the air‐liquid interface can be changed which allows control of the wetting mechanics. It is shown that the water contact angle can be varied from about 30° for a planar network to about 140° for a patterned mat implying a complete transition from hydrophilic to hydrophobic behavior. Furthermore, upon stretching the fiber mat loses its pattern irreversibly and reducing the contact angle from 140° to 110° with increasing stretching. © 2017 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2017 , 134, 44709. 相似文献
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The mechanical properties and the surface property of wood flour/continuous glass mat/polypropylene composites have been investigated. The suitability of wood flour as a filler for continuous glass mat–reinforced polypropylene has been tested using different mesh sizes (e.g., 20 and 40 mesh), as well as by varying the weight percentage of wood flour from 0%– 30%. Moreover, different treatments such as coupling agent A‐1100 and functionalized polypropylene grafting with maleic anhydride, and so forth, have also been used to improve the compatibility of wood flour and glass fiber with the polymer resin. In addition, the effects of the surface weight of glass mat and matrix resin have been studied. The extent of the improvement in mechanical properties depends on the wood flour content and size, the surface weight of the glass mat, the matrix resin, and the surface treatment of wood flour. After adding wood flour, the contact angle of distilled water on the composite surface decreases and the polar component of surface tension increases. © 2002 Wiley Periodicals, Inc. J Appl Polym Sci 85: 536–544, 2002 相似文献