CN106192601A - 高强度芳纶纸及其制备方法 - Google Patents

高强度芳纶纸及其制备方法 Download PDF

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CN106192601A
CN106192601A CN201610726530.3A CN201610726530A CN106192601A CN 106192601 A CN106192601 A CN 106192601A CN 201610726530 A CN201610726530 A CN 201610726530A CN 106192601 A CN106192601 A CN 106192601A
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钟洲
王丽丽
车明国
丁秀臣
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Super Gomez New Materials Ltd By Share Ltd
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Abstract

本发明公开了一种高强度芳纶纸及其制备方法，所述高强度芳纶纸包括水刺无纺布层和芳纶纤维纸，所述水刺无纺布层和所述芳纶纤维纸复合，所述水刺无纺布层由相互缠绕的第一芳纶短切纤维组成，所述芳纶纤维纸由相互缠绕的第二芳纶短切纤维及芳纶沉析纤维组成，部分所述第一芳纶短切纤维与部分所述第二芳纶短切纤维相互缠绕，部分所述第一芳纶短切纤维与部分所述芳纶沉析纤维相互缠绕，所述芳纶纤维纸的厚度大于等于所述水刺无纺布层的厚度。与现有技术相比，本发明所述高强度芳纶纸具有由相互缠绕的第一芳纶短切纤维组成的水刺无纺布层，所述水刺无纺布层具有较好的机械强度，提高了所述高强度芳纶纸的使用寿命。

Description

高强度芳纶纸及其制备方法
技术领域
本发明涉及一种高强度芳纶纸及其制备方法。
背景技术
芳纶绝缘纸，也称芳纶纸，其具有较好的热稳定性、阻燃性、耐高温绝缘性和化学稳定性，因此被广泛应用于航空航天、交通、电子等领域。现有的芳纶纸通常采用对位芳纶短切纤维、间位芳纶浆粕和粘合剂组成，芳纶纸成纸的机械强度低，容易撕裂，导致使用寿命较短，因此，有必要提供一种新的芳纶纸来解决上述问题。
发明内容
本发明的目的在于提供一种强度大、使用寿命长的高强度芳纶纸。
为了实现上述目的，本发明所采用的技术方案如下：
一种高强度芳纶纸，包括水刺无纺布层和芳纶纤维纸，所述水刺无纺布层和所述芳纶纤维纸复合，所述水刺无纺布层由相互缠绕的第一芳纶短切纤维组成，所述芳纶纤维纸由相互缠绕的第二芳纶短切纤维及芳纶沉析纤维组成，部分所述第一芳纶短切纤维与部分所述第二芳纶短切纤维相互缠绕，部分所述第一芳纶短切纤维与部分所述芳纶沉析纤维相互缠绕，所述芳纶纤维纸的厚度大于等于所述水刺无纺布层的厚度。
优选的，所述第一芳纶短切纤维为卷曲纤维。
优选的，所述水刺无纺布层的克重为10-50g/m2。
本发明还提供一种制备所述高强度芳纶纸的制备方法，包括以下步骤：
a)采用水刺方法，利用卷曲的芳纶短切纤维制备水刺无纺布层；
b)配置所需浓度的纤维浆料，所述纤维浆料中包括芳纶短切纤维和芳纶沉析纤维，搅拌所述纤维浆料使其混合均匀；
c)对所述纤维浆料进行打浆疏解处理，制成造纸浆料；
d)将所述造纸浆料上网成型并送上造纸机经过网部滤水、压榨脱水、烘缸干燥、压光卷取，并进行裁切生产出芳纶纤维纸；
e)将所述芳纶纤维纸与所述水刺无纺布层贴合，然后进行高温热压处理，使所述芳纶纤维纸与所述水刺无纺布层复合，形成所述高强度芳纶纸。
优选的，所述纤维浆料中的芳纶短切纤维的质量百分数为10-50wt％，所述纤维浆料中的芳纶短切纤维的质量百分数为50-90wt％。
与现有技术相比，本发明高强度芳纶纸及其制备方法的有益效果在于：本发明所述高强度芳纶纸具有由相互缠绕的第一芳纶短切纤维组成的水刺无纺布层，所述水刺无纺布层具有较好的机械强度，提高了所述高强度芳纶纸使用寿命。
附图说明
图1为本发明所述高强度芳纶纸一实施例的结构示意图。
图中各标记如下：1、芳纶纤维纸；2、水刺无纺布层。
具体实施方式
下面结合具体实施例对本发明进一步进行描述。
本发明提供一种高强度芳纶纸，包括水刺无纺布层2和芳纶纤维纸1，所述水刺无纺布层2和所述芳纶纤维纸1复合，所述水刺无纺布层2由相互缠绕的第一芳纶短切纤维组成，所述芳纶纤维纸1由相互缠绕的第二芳纶短切纤维及芳纶沉析纤维组成，部分所述第一芳纶短切纤维与部分所述第二芳纶短切纤维相互缠绕，部分所述第一芳纶短切纤维与部分所述芳纶沉析纤维相互缠绕，所述芳纶纤维纸1的厚度大于等于所述水刺无纺布层2的厚度。
其中，所述第一芳纶短切纤维为卷曲纤维。所述水刺无纺布层2的克重为10-50g/m2。所述第一芳纶短切纤维的强度好，采用水刺方法制得的水刺无纺布的强力较大。
本发明还提供一种制备所述高强度芳纶纸的制备方法，包括以下步骤：
a)采用水刺方法，利用卷曲的芳纶短切纤维制备水刺无纺布层2；
b)配置所需浓度的纤维浆料，所述纤维浆料中包括10-50％的芳纶短切纤维和50-90％的芳纶沉析纤维，搅拌所述纤维浆料使其混合均匀；
c)对所述纤维浆料进行打浆疏解处理，制成造纸浆料；
d)将所述造纸浆料上网成型并送上造纸机经过网部滤水、压榨脱水、烘缸干燥、压光卷取，并进行裁切生产出芳纶纤维纸1；
e)将所述芳纶纤维纸1与所述水刺无纺布层2贴合，然后进行高温热压处理，使所述芳纶纤维纸1与所述水刺无纺布层2复合，形成所述高强度芳纶纸。
在本发明中，所述纤维浆料中的芳纶短切纤维的质量百分数为10-50wt％，所述纤维浆料中的芳纶短切纤维的质量百分数为50-90wt％。
在本发明一实施例中，所述纤维浆料中的芳纶短切纤维的质量百分数为10wt％，所述纤维浆料中的芳纶短切纤维的质量百分数为90wt％。
在本发明另一实施例中，所述纤维浆料中的芳纶短切纤维的质量百分数为50wt％，所述纤维浆料中的芳纶短切纤维的质量百分数为50wt％。
在本发明另一实施例中，所述纤维浆料中的芳纶短切纤维的质量百分数为30wt％，所述纤维浆料中的芳纶短切纤维的质量百分数为70wt％。
综上所述，本发明所述高强度芳纶纸具有由相互缠绕的第一芳纶短切纤维组成的水刺无纺布层2，所述水刺无纺布层2具有较好的机械强度，提高了所述高强度芳纶纸使用寿命。
以上示意性的对本发明及其实施方式进行了描述，该描述没有限制性，附图中所示的也只是本发明的实施方式之一，实际的结构并不局限于此。所以，如果本领域的普通技术人员受其启示，在不脱离本发明创造宗旨的情况下，不经创造性的设计出与该技术方案相似的结构方式及实施例，均应属于本发明的保护范围。

Claims (5)

1.一种高强度芳纶纸，其特征在于，包括水刺无纺布层和芳纶纤维纸，所述水刺无纺布层和所述芳纶纤维纸复合，所述水刺无纺布层由相互缠绕的第一芳纶短切纤维组成，所述芳纶纤维纸由相互缠绕的第二芳纶短切纤维及芳纶沉析纤维组成，部分所述第一芳纶短切纤维与部分所述第二芳纶短切纤维相互缠绕，部分所述第一芳纶短切纤维与部分所述芳纶沉析纤维相互缠绕，所述芳纶纤维纸的厚度大于等于所述水刺无纺布层的厚度。
2.如权利要求1所述的高强度芳纶纸，其特征在于，所述第一芳纶短切纤维为卷曲纤维。
3.如权利要求1所述的高强度芳纶纸，其特征在于，所述水刺无纺布层的克重为10-50g/m2。
4.一种如权利要求1至3任一所述的高强度芳纶纸的制备方法，其特征在于，包括以下步骤：
a)采用水刺方法，利用卷曲的芳纶短切纤维制备水刺无纺布层；
b)配置所需浓度的纤维浆料，所述纤维浆料中包括芳纶短切纤维和芳纶沉析纤维，搅拌所述纤维浆料使其混合均匀；
c)对所述纤维浆料进行打浆疏解处理，制成造纸浆料；
d)将所述造纸浆料上网成型并送上造纸机经过网部滤水、压榨脱水、烘缸干燥、压光卷取，并进行裁切生产出芳纶纤维纸；
e)将所述芳纶纤维纸与所述水刺无纺布层贴合，然后进行高温热压处理，使所述芳纶纤维纸与所述水刺无纺布层复合，形成所述高强度芳纶纸。
5.一种如权利要求4所述的高强度芳纶纸的制备方法，其特征在于，在步骤b)中，所述纤维浆料中的芳纶短切纤维的质量百分数为10-50wt％，所述纤维浆料中的芳纶短切纤维的质量百分数为50-90wt％。
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CN108754856A (zh) * 2018-07-03 2018-11-06 安徽宜民服饰股份有限公司 一种选择性阻隔紫外线的植物纤维水刺无纺布加工工艺

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CN1834342A (zh) * 2006-04-13 2006-09-20 烟台氨纶股份有限公司 一种间位芳纶纸及其制备方法
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108754856A (zh) * 2018-07-03 2018-11-06 安徽宜民服饰股份有限公司 一种选择性阻隔紫外线的植物纤维水刺无纺布加工工艺
CN108754856B (zh) * 2018-07-03 2019-08-30 安徽宜民服饰股份有限公司 一种选择性阻隔紫外线的植物纤维水刺无纺布加工工艺

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