CN114016330A - 一种高透滤纸及其制备方法 - Google Patents

一种高透滤纸及其制备方法 Download PDF

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CN114016330A
CN114016330A CN202110847259.XA CN202110847259A CN114016330A CN 114016330 A CN114016330 A CN 114016330A CN 202110847259 A CN202110847259 A CN 202110847259A CN 114016330 A CN114016330 A CN 114016330A
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filter paper
slurry
pulp
fiber
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李文翱
刘勇
余竹良
徐伟勋
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Zhejiang Aoli New Material Technology Co ltd
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Abstract

本发明公开了一种高透滤纸及其制备方法，旨在解决滤纸再双面树脂层的夹持下，透气性不佳的问题。其技术方案要点是：包括滤纸本体，其是由下述重量份的原料制得：木浆纤维60～65份，麻纤维5～10份，苇浆纤维10～15份，醋酸纤维25～28份，微晶纤维素3～8份份，改性纳米海泡石粉1～2份，纯丙乳液1～2份，钠基澎润土1～2份，云母粉0.5～1份，羧甲基纤维素0.5～0.8份,硅酸铝1～2份，椰油酸二乙醇酰胺1～2份，PAE湿强剂0.2～0.4份，分散剂1～3份。本发明通过设置单层的树脂层在保证透气性的同时，提高了滤纸的耐水性、耐候性以及耐破度。

Description

一种高透滤纸及其制备方法
技术领域
本发明涉及过滤材料及其制备方法，更具体地说，它涉及一种高透滤纸及 其制备方法。
背景技术
滤纸具有纤维交错形成的三维网络结构，可以使固体、液体通过的同时， 对固体微粒进行阻挡，是空气净化设备或液体过滤设备的重要组成部件。
滤清器用滤纸，决定着机滤清器的性能，其主要用于过滤进入发动机的空 中的颗粒状杂质以及水分等。目前的滤清器用滤纸一般由用普通木浆为主要成 分制成的一种纸质的过滤层组成，由于普通木浆纤维较细、紧度高，因此所制 成的滤纸普遍存在着紧度高、过滤效率低、寿命短等缺点，而且纸质的滤纸还 普遍存在固化性差，耐水性、耐候性不够的缺点，当空气湿度改变时，纸张容 易产生变形，进而影响过滤效果。
传统的滤纸为了改善滤纸的耐水性和耐破度，在滤纸的两面均设有树脂层， 双面树脂层虽然能够大幅提高滤纸的耐水性、耐候性和耐破度，延长使用寿命， 但是其严重影响了滤纸的透气度，不仅降低了通气效率，而且使得滤纸容易积 蓄热量，从而导致温度升高，对滤纸的热稳定性具有较高的要求。
因此需要提出一种方案来解决这个问题。
发明内容
针对现有技术存在的不足，本发明的目的在于提供一种高透滤纸及其制备 方法，通过设置单层的树脂层在保证透气性的同时，提高了滤纸的耐水性、耐 候性以及耐破度。
本发明的上述技术目的是通过以下技术方案得以实现的：一种高透滤纸及 其制备方法，包括滤纸本体，其是由下述重量份的原料制得：木浆纤维60～65 份，麻纤维5～10份，苇浆纤维10～15份，醋酸纤维25～28份，微晶纤维素3～ 8份，改性纳米海泡石粉1～2份，纯丙乳液1～2份，钠基澎润土1～2份，云 母粉0.5～1份，羧甲基纤维素0.5～0.8份,硅酸铝1～2份，椰油酸二乙醇酰 胺1～2份，PAE湿强剂0.2～0.4份，分散剂1～3份。
本发明进一步设置为：所述滤纸本体的一侧设置有树脂层，其是由下述重 量份的原料制得：酚氧树脂60～75份、玉米生物基纤维100～200份、聚碳化 二亚胺10～35份、有机柔性纤维20～40份、负电改性艾末中长纤维100～300 份。
本发明的上述技术目的还通过以下技术方案得以实现的：所述高透滤纸的 制备方法，包括以下步骤：1)对丝木浆纤维、麻纤维、苇浆纤维、醋酸纤维混 合后进行打浆，浆料浓度为1.9～2.5wt％，在打浆的过程中加入微晶纤维素、 改性纳米海泡石粉，打浆至浆料叩解度为12～14°SR后，加入PAE湿强剂再进 行磨浆，直至叩解度为16～20°SR，制得浆料a；
2)将椰油酸二乙醇酰胺加入到所述浆料a中，搅拌均匀后制得浆料b；将 分散剂加入到所述浆料b中，分散均匀后加水调节浆料浓度至1.5～1.9wt％， 将其余原料按照重量份加入浆料b中，搅拌均匀后制得浆料c；对浆料c进行上 网抄造成型后，制得过滤纸本体；
3)对玉米生物基纤维、有机柔性纤维、负电改性艾末中长纤维进行打浆， 浆料浓度为2.5～3.0％，打浆至浆料叩解度为16～18°SR后，再进行磨浆，直 至叩解度为26～30°SR，制得浆料A；将酚氧树脂加入到所述浆料A中，搅拌 均匀后制得浆料B；将聚碳化二亚胺加入到所述浆料B中，分散均匀后加水调节 浆料浓度至1.3～1.7wt％，制得浆料C，对浆料C进行上网抄造成型后，制得 树脂层；
4)将所述滤纸本体和树脂层进行贴合，然后经过抽真空压榨、烘干后制得 滤纸成品。
综上所述，本发明具有以下有益效果：
本发明的滤纸具有良好的透气性和过滤效果，且在保证良好透气性的同时， 通过单面的树脂层提高了滤纸的耐水性、耐候性以及耐破度。
具体实施方式
为了使本领域的技术人员更好地理解本发明的技术方案，下面结合具体实 施例对本发明作进一步详细的描述，需要说明的是，在不冲突的情况下，本申 请的实施例及实施例中的特征可以相互组合。
在本发明的描述中，需要说明的是，除非另有明确的规定和限定，术语“安 装”、“设置有”、“套设置/接”、“连接”等，应做广义理解，例如“连接”， 可以是固定连接，也可以是可拆卸连接，或一体地连接；可以是机械连接，也 可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个 元件内部的连通。对于本领域的普通技术人员而言，可以具体情况理解上述术 语在本发明中的具体含义。
下面对本发明进行详细描述。
实施例一：一种高透滤纸及其制备方法，包括滤纸本体，其是由下述重量 份的原料制得：木浆纤维60份，麻纤维5份，苇浆纤维10份，醋酸纤维25份， 微晶纤维素3份，改性纳米海泡石粉1份，纯丙乳液1份，钠基澎润土1份， 云母粉0.5份，羧甲基纤维素0.5份,硅酸铝1份，椰油酸二乙醇酰胺1份，PAE 湿强剂0.2份，分散剂1份。
滤纸本体的一侧设置有树脂层，其是由下述重量份的原料制得：酚氧树脂 60～75份、玉米生物基纤维100份、聚碳化二亚胺10份、有机柔性纤维20份、 负电改性艾末中长纤维100份。
高透滤纸的制备方法，包括以下步骤：1)对丝木浆纤维、麻纤维、苇浆纤 维、醋酸纤维混合后进行打浆，浆料浓度为1.9wt％，在打浆的过程中加入微晶 纤维素、改性纳米海泡石粉，打浆至浆料叩解度为12°SR后，加入PAE湿强剂 再进行磨浆，直至叩解度为16°SR，制得浆料a；
2)将椰油酸二乙醇酰胺加入到浆料a中，搅拌均匀后制得浆料b；将分散 剂加入到浆料b中，分散均匀后加水调节浆料浓度至1.5wt％，将其余原料按照 重量份加入浆料b中，搅拌均匀后制得浆料c；对浆料c进行上网抄造成型后， 制得过滤纸本体；
3)对玉米生物基纤维、有机柔性纤维、负电改性艾末中长纤维进行打浆， 浆料浓度为2.5％，打浆至浆料叩解度为16°SR后，再进行磨浆，直至叩解度 为26°SR，制得浆料A；将酚氧树脂加入到浆料A中，搅拌均匀后制得浆料B； 将聚碳化二亚胺加入到浆料B中，分散均匀后加水调节浆料浓度至1.3wt％，制 得浆料C，对浆料C进行上网抄造成型后，制得树脂层；
4)将滤纸本体和树脂层进行贴合，然后经过抽真空压榨、烘干后制得滤纸 成品。
实施例二：一种高透滤纸及其制备方法，包括滤纸本体，其是由下述重量 份的原料制得：木浆纤维65份，麻纤维10份，苇浆纤维15份，醋酸纤维28 份，微晶纤维素8份，改性纳米海泡石粉2份，纯丙乳液2份，钠基澎润土2 份，云母粉1份，羧甲基纤维素0.8份,硅酸铝2份，椰油酸二乙醇酰胺2份， PAE湿强剂0.4份，分散剂3份。
滤纸本体的一侧设置有树脂层，其是由下述重量份的原料制得：酚氧树脂 75份、玉米生物基纤维200份、聚碳化二亚胺35份、有机柔性纤维40份、负 电改性艾末中长纤维300份。
高透滤纸的制备方法，包括以下步骤：1)对丝木浆纤维、麻纤维、苇浆纤 维、醋酸纤维混合后进行打浆，浆料浓度为2.5wt％，在打浆的过程中加入微晶 纤维素、改性纳米海泡石粉，打浆至浆料叩解度为14°SR后，加入PAE湿强剂 再进行磨浆，直至叩解度为20°SR，制得浆料a；
2)将椰油酸二乙醇酰胺加入到浆料a中，搅拌均匀后制得浆料b；将分散 剂加入到浆料b中，分散均匀后加水调节浆料浓度至1.9wt％，将其余原料按照 重量份加入浆料b中，搅拌均匀后制得浆料c；对浆料c进行上网抄造成型后， 制得过滤纸本体；
3)对玉米生物基纤维、有机柔性纤维、负电改性艾末中长纤维进行打浆， 浆料浓度为3.0％，打浆至浆料叩解度为18°SR后，再进行磨浆，直至叩解度 为30°SR，制得浆料A；将酚氧树脂加入到浆料A中，搅拌均匀后制得浆料B； 将聚碳化二亚胺加入到浆料B中，分散均匀后加水调节浆料浓度至1.7wt％，制 得浆料C，对浆料C进行上网抄造成型后，制得树脂层；
4)将滤纸本体和树脂层进行贴合，然后经过抽真空压榨、烘干后制得滤纸 成品。
实施例三：一种高透滤纸及其制备方法，包括滤纸本体，其是由下述重量 份的原料制得：木浆纤维62份，麻纤维8份，苇浆纤维13份，醋酸纤维26份， 微晶纤维素5份份，改性纳米海泡石粉1.2份，纯丙乳液1.3份，钠基澎润土 1.8份，云母0.7份，羧甲基纤维素0.7份,硅酸铝1.5份，椰油酸二乙醇酰胺 1.4份，PAE湿强剂0.3份，分散剂2份。
滤纸本体的一侧设置有树脂层，其是由下述重量份的原料制得：酚氧树脂 70份、玉米生物基纤维150份、聚碳化二亚胺20份、有机柔性纤维30份、负 电改性艾末中长纤维150份。
高透滤纸的制备方法，包括以下步骤：1)对丝木浆纤维、麻纤维、苇浆纤 维、醋酸纤维混合后进行打浆，浆料浓度为2wt％，在打浆的过程中加入微晶纤 维素、改性纳米海泡石粉，打浆至浆料叩解度为13°SR后，加入PAE湿强剂再 进行磨浆，直至叩解度为18°SR，制得浆料a；
2)将椰油酸二乙醇酰胺加入到浆料a中，搅拌均匀后制得浆料b；将分散 剂加入到浆料b中，分散均匀后加水调节浆料浓度至1.7wt％，将其余原料按照 重量份加入浆料b中，搅拌均匀后制得浆料c；对浆料c进行上网抄造成型后， 制得过滤纸本体；
3)对玉米生物基纤维、有机柔性纤维、负电改性艾末中长纤维进行打浆， 浆料浓度为2.6％，打浆至浆料叩解度为17°SR后，再进行磨浆，直至叩解度 为27°SR，制得浆料A；将酚氧树脂加入到浆料A中，搅拌均匀后制得浆料B； 将聚碳化二亚胺加入到浆料B中，分散均匀后加水调节浆料浓度至1.6wt％，制 得浆料C，对浆料C进行上网抄造成型后，制得树脂层；
4)将滤纸本体和树脂层进行贴合，然后经过抽真空压榨、烘干后制得滤纸 成品。
实施例1-3制得的滤纸本体的各性能检测如表1所示：
Figure BDA0003181109120000071
表1
本发明中所用原料、设备，若无特别说明，均为本领域的常用原料、设备； 本发明中所用方法，若无特别说明，均为本领域的常规方法。
以上所述仅是本发明的优选实施方式，本发明的保护范围并不仅局限于上 述实施例，凡属于本发明思路下的技术方案均属于本发明的保护范围。应当指 出，对于本技术领域的普通技术人员来说，在不脱离本发明原理前提下的若干 改进和润饰，这些改进和润饰也应视为本发明的保护范围。

Claims (3)

1.一种高透滤纸及其制备方法，包括滤纸本体，其特征在于：其是由下述重量份的原料制得：木浆纤维60～65份，麻纤维5～10份，苇浆纤维10～15份，醋酸纤维25～28份，微晶纤维素3～8份，改性纳米海泡石粉1～2份，纯丙乳液1～2份，钠基澎润土1～2份，云母粉0.5～1份，羧甲基纤维素0.5～0.8份,硅酸铝1～2份，椰油酸二乙醇酰胺1～2份，PAE湿强剂0.2～0.4份，分散剂1～3份。
2.根据权利要求1所述的一种高透滤纸及其制备方法，其特征在于：所述滤纸本体的一侧设置有树脂层，其是由下述重量份的原料制得：酚氧树脂60～75份、玉米生物基纤维100～200份、聚碳化二亚胺10～35份、有机柔性纤维20～40份、负电改性艾末中长纤维100～300份。
3.根据权利要求1～2任一所述高透滤纸的制备方法，包括以下步骤：1)对丝木浆纤维、麻纤维、苇浆纤维、醋酸纤维混合后进行打浆，浆料浓度为1.9～2.5wt％，在打浆的过程中加入微晶纤维素、改性纳米海泡石粉，打浆至浆料叩解度为12～14°SR后，加入PAE湿强剂再进行磨浆，直至叩解度为16～20°SR，制得浆料a；
2)将椰油酸二乙醇酰胺加入到所述浆料a中，搅拌均匀后制得浆料b；将分散剂加入到所述浆料b中，分散均匀后加水调节浆料浓度至1.5～1.9wt％，将其余原料按照重量份加入浆料b中，搅拌均匀后制得浆料c；对浆料c进行上网抄造成型后，制得过滤纸本体；
3)对玉米生物基纤维、有机柔性纤维、负电改性艾末中长纤维进行打浆，浆料浓度为2.5～3.0％，打浆至浆料叩解度为16～18°SR后，再进行磨浆，直至叩解度为26～30°SR，制得浆料A；将酚氧树脂加入到所述浆料A中，搅拌均匀后制得浆料B；将聚碳化二亚胺加入到所述浆料B中，分散均匀后加水调节浆料浓度至1.3～1.7wt％，制得浆料C，对浆料C进行上网抄造成型后，制得树脂层；
4)将所述滤纸本体和树脂层进行贴合，然后经过抽真空压榨、烘干后制得滤纸成品。
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CN102877376A (zh) * 2012-09-25 2013-01-16 蚌埠凤凰滤清器有限责任公司 一种醋酸纤维滤纸
CN103382687A (zh) * 2013-06-26 2013-11-06 蚌埠首创滤清器有限公司 一种耐热型滤清器滤纸及其制备方法
CN105951527A (zh) * 2016-05-28 2016-09-21 杭州特种纸业有限公司 一种内燃机滤清器用滤纸及其制备方法
CN107869092A (zh) * 2017-11-07 2018-04-03 佛山市豹王滤芯制造有限公司 一种滤清器用复合滤纸及其制备方法

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CN102877376A (zh) * 2012-09-25 2013-01-16 蚌埠凤凰滤清器有限责任公司 一种醋酸纤维滤纸
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