CN107964731A - 低还原物、低离子含量蓄电池隔板毡及其制备方法 - Google Patents

低还原物、低离子含量蓄电池隔板毡及其制备方法 Download PDF

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CN107964731A
CN107964731A CN201711187046.9A CN201711187046A CN107964731A CN 107964731 A CN107964731 A CN 107964731A CN 201711187046 A CN201711187046 A CN 201711187046A CN 107964731 A CN107964731 A CN 107964731A
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周栋
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Ningbo Penghui Micro Technology Co Ltd
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Abstract

本发明涉及一种低还原物、低离子含量蓄电池隔板毡及其制备方法，其特征在于它由段装玻璃纤维与粘结剂通过纤维成型、浸胶、烘干、收卷工序制得，其中玻璃纤维质量分数为70～90％，粘合剂质量分数为10～30％。本低还原物、低离子含量蓄电池隔板毡厚度均匀；无孔洞，无污渍等；还原物的含量低；氯离子、铁离子的含量低；耐酸性好，制品强度高。本低还原物、低离子含量蓄电池隔板毡的制备方法生产的产品稳定，运行平稳。

Description

低还原物、低离子含量蓄电池隔板毡及其制备方法
技术领域
本发明涉及一种低还原物、低离子含量蓄电池隔板毡及其制备方法，属于蓄电池基材领域。
背景技术
随着社会的不断发展，以及人们生活水平的提高，人们对于物质生活的要求也越来越高。其中新材料的发展尤为突出，玻璃纤维产品新的应用研发及市场开拓也应该积极运作。目前隔板毡主要用于蓄电池制造领域，并显示出明显的高孔率、低电阻、耐高温和抗氧化的性能，如粘度小、悬浮性好、收缩率低等，因而可以有效的防止蓄电池极板由于汽车颠簸而引起的活性物质的脱落，可延长蓄电池的使用寿命15％-20％。
但是在使用过程中，因为玻璃纤维中存在还原性物质，并且还原物的含量很难控制，从而影响到蓄电池的性能和质量。
发明内容
根据以上技术的不足，本发明要解决的技术问题是：提供一种蓄电池隔板毡及其制备方法，它的还原物和离子含量低。
本发明解决其技术问题所采用的技术方案是：一种低还原物、低离子含量蓄电池隔板毡，其特征在于它由段装玻璃纤维与粘结剂通过纤维成型、浸胶、烘干、收卷工序制得，其中玻璃纤维质量分数为70～90％，粘合剂质量分数为10～30％。
所述的粘结剂是改性聚丙烯酸酯。
所述的改性聚丙烯酸酯的固含量为40～50％。
所述的低还原物、低离子含量蓄电池隔板毡的制备方法，其特征在于包括如下步骤：
(1)纤维丝剪切：按照设备要求将玻璃纤维按尺寸剪切好；
(2)粘结剂制备：按照粘结剂配制工艺单，逐项加入纯水、偶联剂、高速渗透剂、聚丙烯酸树脂、消泡剂，所加入的偶联剂、告诉渗透剂、消泡剂都是行业内常用的，为公知技术；
(3)纤维成型：水中使用增粘剂，并在成型器上部加装稳流器；
(4)浸胶：粘结剂利用施胶器，均匀的浇注到毡面上，控制抽吸负压为-30～-40bar；
(5)烘干：烘干温度控制在100～250℃，烘干后聚丙烯酸酯固化程度在95～99％，低还原物、低离子含量蓄电池隔板毡表面平整，不分层；
(6)收卷：烘干结束后，将低还原物、低离子含量蓄电池隔板毡收卷。
所述的增粘剂为羟乙基纤维素，用量为0.1～0.2％。
所述的稳流器底部低于液面。
本发明的有益效果是：厚度均匀；无孔洞，无污渍等；还原物的含量低；氯离子、铁离子的含量低；耐酸性好，制品强度高。本低还原物、低离子含量蓄电池隔板毡的制备方法生产的产品稳定，运行平稳。
具体实施方式
实施例1
取规格为“R61-13-18”短切纤维3.18吨，按照设备要求将玻璃纤维切成长度为12毫米/段。
粘结剂的配制为：脲醛树脂54.7kg，聚丙烯酸酯粘结剂450kg，KH-560偶联剂17.8kg，DSC-1分散剂81kg，KLD-930消泡剂22.8kg。在19.5T水中加羟乙基纤维素39.8kg，通过成型工序使其成型，粘结剂利用施胶器，均匀的浇注到毡面上，控制抽吸负压为-30bar；施胶后至烘干区进行烘干，烘干温度为100℃，烘干后聚丙烯酸酯固化程度在95％，低还原物、低离子含量蓄电池隔板毡表面平整，不分层，烘干结束后将低还原物、低离子含量蓄电池隔板毡收卷，产量85663.2m2，合格品量83896m2，作废品量：1767.2m2。
产品性能指标为：纵横向拉伸断裂强力168N/5cm，横向拉伸断裂强力：88N/5cm，单位面积质量41.5g/m2，厚度0.50mm，可燃物含量14.8％，含水率0.71％。
实施例2
取规格为“R61-13-18”短切纤维3.54吨，按照设备要求将玻璃纤维切成长度为12毫米/段。
粘结剂的配制为：脲醛树脂45.6kg，聚丙烯酸酯粘结剂501kg，KH-560偶联剂15.8kg，DSC-1分散剂79kg，KLD-930消泡剂15.8kg。在19.6T水中加羟乙基纤维素22kg，通过成型工序使其成型，粘结剂利用施胶器，均匀的浇注到毡面上，控制抽吸负压为-35bar；施胶后至烘干区进行烘干，烘干温度为180℃，烘干后聚丙烯酸酯固化程度在99％，低还原物、低离子含量蓄电池隔板毡表面平整，不分层，烘干结束后将低还原物、低离子含量蓄电池隔板毡收卷，产量84986.7m2，合格品量82998.7m2，作废品量：1998m2。
产品性能指标为：纵横向拉伸断裂强力167N/5cm，横向拉伸断裂强力：85N/5cm，单位面积质量41.3g/m2，厚度0.51mm，可燃物含量14.6％，含水率0.78％。
实施例3
取规格为“R61-13-18”短切纤维2.97吨，按照设备要求将玻璃纤维切成长度为12毫米/段。
粘结剂的配制为：脲醛树脂66.3kg，聚丙烯酸酯粘结剂400kg，KH-560偶联剂18.9kg，DSC-1分散剂89kg，KLD-930消泡剂29.6kg。在22.4T水中加羟乙基纤维素35kg，通过成型工序使其成型，粘结剂利用施胶器，均匀的浇注到毡面上，控制抽吸负压为-39bar；施胶后至烘干区进行烘干，烘干温度为240℃，烘干后聚丙烯酸酯固化程度在97％，低还原物、低离子含量蓄电池隔板毡表面平整，不分层，烘干结束后将低还原物、低离子含量蓄电池隔板毡收卷，产量82666.9m2，合格品量81005.5m2，作废品量：1661.4m2。
产品性能指标为：纵横向拉伸断裂强力170N/5cm，横向拉伸断裂强力：90N/5cm，单位面积质量41.9g/m2，厚度0.55mm，可燃物含量14.1％，含水率0.69％。

Claims (6)

1.一种低还原物、低离子含量蓄电池隔板毡，其特征在于由段装玻璃纤维与粘结剂通过纤维成型、浸胶、烘干、工序制得，其中玻璃纤维质量分数为70～90％，粘合剂质量分数为10～30％。
2.根据权利要求1所述的低还原物、低离子含量蓄电池隔板毡，其特征在于所述的粘结剂是改性聚丙烯酸酯。
3.根据权利要求2所述的低还原物、低离子含量蓄电池隔板毡，其特征在于所述的改性聚丙烯酸酯的固含量为40～50％。
4.根据权利要求1、2或3所述的低还原物、低离子含量蓄电池隔板毡的制备方法，其特征在于包括如下步骤：
(1)纤维丝剪切：按照设备要求将玻璃纤维按尺寸剪切好；
(2)粘结剂制备：按照粘结剂配制工艺单，逐项加入纯水、偶联剂、高速渗透剂、聚丙烯酸树脂、消泡剂；
(3)纤维成型：水中使用增粘剂，并在成型器上部加装稳流器；
(4)浸胶：粘结剂利用施胶器，均匀的浇注到毡面上，控制抽吸负压为-30～-40bar；
(5)烘干：烘干温度控制在100～250℃，烘干后聚丙烯酸酯固化程度在95～99％，低还原物、低离子含量蓄电池隔板毡表面平整，不分层；
(6)收卷：烘干结束后，将低还原物、低离子含量蓄电池隔板毡收卷。
5.根据权利要求4所述的低还原物、低离子含量蓄电池隔板毡的制备方法，其特征在于所述的增粘剂为羟乙基纤维素，用量为0.1～0.2％。
6.根据权利要求4所述的低还原物、低离子含量蓄电池隔板毡的制备方法，其特征在于所述的稳流器底部低于液面。
CN201711187046.9A 2017-11-18 2017-11-18 低还原物、低离子含量蓄电池隔板毡及其制备方法 Pending CN107964731A (zh)

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Application publication date: 20180427