CN105887572A - 一种热固性机油滤纸 - Google Patents

一种热固性机油滤纸 Download PDF

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CN105887572A
CN105887572A CN201610224767.1A CN201610224767A CN105887572A CN 105887572 A CN105887572 A CN 105887572A CN 201610224767 A CN201610224767 A CN 201610224767A CN 105887572 A CN105887572 A CN 105887572A
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吴安波
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Hangzhou Special Paper Industry Co Ltd
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Abstract

本发明涉及一种热固性机油滤纸，包括纸质的过滤层，过滤层表面均匀涂布树脂层，过滤层由以下重量份的原料组成：竹浆纤维70‑100份、玉米纤维20‑25份、菠萝纤维10‑15份、改性纳米地开石3‑5份、玻璃微珠1‑2份、磁性粒子3‑5份与湿强剂2‑5份，树脂层由以下重量份的原料组成：酚醛树脂40‑50份、聚丙烯酸酯20‑30份与助剂6‑10份。本发明具有良好的耐水性以及耐油性，固化效率高，安全环保，提高生产效率，并且增强了滤纸的韧性，提高了滤清器滤清效率以及使用寿命。

Description

一种热固性机油滤纸
技术领域
本发明涉及一种滤纸，尤其涉及一种具有良好的耐水性、固化性、耐油性、耐高温、耐溶剂性能的热固性机油滤纸。
背景技术
作为一种有效的过滤介质，过滤纸已经被广泛地用于各个领域。汽车机油滤纸是汽车机油滤清器的关键组成部分，为适应内燃机机油过滤要求，汽车机油滤纸必须耐高温、耐油，并具有高的挺度和耐破度，它决定着汽车机油滤清器的性能。
目前汽车机油滤纸的材质主要是含有高分子涂层的纸张，高分子材料的性质决定着机油滤纸的性能和使用寿命。国内现有的机油滤纸用高分子涂层主要是丙烯酸类树脂，此类机油滤纸产品的主要缺点是：耐高温性能差、吸潮率高和使用寿命短。国外常用的高分子涂层主要是酚醛树脂，此类机油滤纸产品的耐高温性能好，吸潮率低，使用寿命长；但所使用酚醛树脂一般是溶于有机溶剂中，因此制备时对环境的污染大，生产安全系数低，生产成本高。
而机油滤纸通常包括用普通木浆为主要成分制成的一种纸制的过滤层，由于普通木浆纤维较细、紧度高，因此所制成的机油滤纸普遍存在着紧度高、过滤效率低、寿命短等缺点，而且纸制的机油滤纸还普遍存在固化性、耐水性和耐油性差。
机油滤清器在实际使用中，有很多有害杂质不能被纸滤芯有效滤除，在这些杂志中，由于铁磁性杂质相对细小而坚硬，所以以铁磁性杂质居多，它对发动机损害也最大。
发明内容
本发明的目的是为了解决现有机油滤纸固化性、耐水性和耐油性差的缺陷而提供一种具有良好的耐水性、固化性、耐油性、耐高温、耐溶剂性能的热固性机油滤纸。
为了实现上述目的，本发明采用以下技术方案：
一种热固性机油滤纸，包括纸质的过滤层，过滤层表面均匀涂布树脂层，过滤层由以下重量份的原料组成：针叶漂白木浆70-120份、麻浆纤维30-40份、玉米纤维20-25份、菠萝纤维10-15份、改性纳米地开石3-5份、玻璃微珠1-2份、磁性粒子3-5份与湿强剂2-5份，树脂层由以下重量份的原料组成：酚醛树脂40-50份、聚丙烯酸酯20-30份与助剂6-10份。在本技术方案中，添加磁性粒子能够很好地过滤掉发动机燃烧时产生的金属杂质，保护发动机以及提高滤清器效率，安全环保，具有良好的耐水性以及耐油性。
作为优选，改性纳米地开石的制备方法为：将地开石粉碎成2-3cm后放入质量分数72-78％的的过氧化氢溶液中，超声震荡10-12h，取出干燥后在450-500℃下煅烧2-3h，而后研磨成纳米粉末得到改性纳米地开石，超声功率为85-90kw。
作为优选，磁性粒子为20-50nm的氧化铁磁性粒子。
作为优选，助剂为光敏增效剂、增韧剂与硅藻土，光敏增效剂、增韧剂与硅藻土的质量比为5:2:3。
作为优选，所述热固性机油滤纸定量为130-187g/㎡，厚度为0.35-0.39mm。
作为优选，所述热固性机油滤纸的制备方法为：
a)改性纳米地开石的制备方法为：将地开石粉碎成2-3cm后放入质量分数72-78％的的过氧化氢溶液中，超声震荡10-12h，取出干燥后在450-500℃下煅烧2-3h，而后研磨成纳米粉末得到改性纳米地开石，超声功率为85-90kw，备用；
b)将针叶漂白木浆、麻浆纤维、玉米纤维、菠萝纤维、改性纳米地开石、玻璃微珠、磁性粒子与湿强剂混合进行打浆处理，打浆度为35-36°SR，湿重7.6-8g，然后对打浆得到的浆料进行筛选、净化及漂洗；漂洗后抄纸成型，得到原纸，干燥；
c)在酚醛树脂粉碎成粒径为15-20μm的粉料然后加入聚丙烯酸酯与助剂，混合均匀后涂布在步骤b)得到的原纸表面，涂布量为40-55g/㎡，涂布后经紫外光辐射完成预固化；然后在90-100℃下干燥60-75s，得到热固性机油滤纸。在本技术方案中，光固化具有高效、节能、环保快速的优点，本发明选用光固化来固化树脂层，提高生产效率，并且可以提高树脂层的耐水、耐油性能，使得其在机油滤清器中的挺度高、寿命长。
作为优选，步骤c)中紫外光源的波长为280-350nm，紫外光辐射的时间为35-45s。
作为优选，增韧剂为聚乙二醇、聚三羟基丙烷或壳聚糖。
本发明的有益效果是：本发明具有良好的耐水性以及耐油性，固化效率高，安全环保，提高生产效率，并且增强了滤纸的韧性，提高了滤清器滤清效率以及使用寿命。
具体实施方式
下面将对本发明实施例中的技术方案进行清楚、完整的描述，显然，所描述的实施例仅是本发明的一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其它实施例，都属于本发明保护的范围。
磁性粒子为20-50nm的氧化铁磁性粒子。
实施例1
一种热固性机油滤纸，包括纸质的过滤层，过滤层表面均匀涂布树脂层，过滤层由以下重量份的原料组成：针叶漂白木浆70份、麻浆纤维30份、玉米纤维20份、菠萝纤维10份、改性纳米地开石3份、玻璃微珠1份、磁性粒子3份与湿强剂2份，树脂层由以下重量份的原料组成：酚醛树脂40份、聚丙烯酸酯20份与助剂6份。助剂为光敏增效剂、增韧剂与硅藻土，光敏增效剂、增韧剂与硅藻土的质量比为5:2:3，增韧剂为聚乙二醇。
所述热固性机油滤纸的制备方法为：
a)改性纳米地开石的制备方法为：将地开石粉碎成2-3cm后放入质量分数72％的的过氧化氢溶液中，超声震荡10h，取出干燥后在450℃下煅烧2h，而后研磨成纳米粉末得到改性纳米地开石，超声功率为85kw，备用；
b)将针叶漂白木浆、麻浆纤维、玉米纤维、菠萝纤维、改性纳米地开石、玻璃微珠、磁性粒子与湿强剂混合进行打浆处理，打浆度为35-36°SR，湿重7.6g，然后对打浆得到的浆料进行筛选、净化及漂洗；漂洗后抄纸成型，得到原纸，干燥；
c)在酚醛树脂粉碎成粒径为15-20μm的粉料然后加入聚丙烯酸酯与助剂，混合均匀后涂布在步骤b)得到的原纸表面，涂布量为40g/㎡，涂布后经紫外光辐射完成预固化，紫外光源的波长为280-350nm，紫外光辐射的时间为35s；然后在90℃下干燥60s，得到热固性机油滤纸。
实施例2
一种热固性机油滤纸，包括纸质的过滤层，过滤层表面均匀涂布树脂层，过滤层由以下重量份的原料组成：针叶漂白木浆100份、麻浆纤维35份、玉米纤维23份、菠萝纤维12份、改性纳米地开石4份、玻璃微珠2份、磁性粒子4份与湿强剂3份，树脂层由以下重量份的原料组成：酚醛树脂45份、聚丙烯酸酯25份与助剂7份。助剂为光敏增效剂、增韧剂与硅藻土，光敏增效剂、增韧剂与硅藻土的质量比为5:2:3，增韧剂为聚三羟基丙烷。
所述热固性机油滤纸的制备方法为：
a)改性纳米地开石的制备方法为：将地开石粉碎成2-3cm后放入质量分数75％的的过氧化氢溶液中，超声震荡11h，取出干燥后在480℃下煅烧3h，而后研磨成纳米粉末得到改性纳米地开石，超声功率为88kw，备用；
b)将针叶漂白木浆、麻浆纤维、玉米纤维、菠萝纤维、改性纳米地开石、玻璃微珠、磁性粒子与湿强剂混合进行打浆处理，打浆度为35-36°SR，湿重7.8g，然后对打浆得到的浆料进行筛选、净化及漂洗；漂洗后抄纸成型，得到原纸，干燥；
c)在酚醛树脂粉碎成粒径为15-20μm的粉料然后加入聚丙烯酸酯与助剂，混合均匀后涂布在步骤b)得到的原纸表面，涂布量为45g/㎡，涂布后经紫外光辐射完成预固化，紫外光源的波长为280-350nm，紫外光辐射的时间为40s；然后在95℃下干燥70s，得到热固性机油滤纸。
实施例3
一种热固性机油滤纸，包括纸质的过滤层，过滤层表面均匀涂布树脂层，过滤层由以下重量份的原料组成：针叶漂白木浆120份、麻浆纤维40份、玉米纤维25份、菠萝纤维15份、改性纳米地开石5份、玻璃微珠2份、磁性粒子5份与湿强剂5份，树脂层由以下重量份的原料组成：酚醛树脂50份、聚丙烯酸酯30份与助剂10份。助剂为光敏增效剂、增韧剂与硅藻土，光敏增效剂、增韧剂与硅藻土的质量比为5:2:3，增韧剂为壳聚糖。
所述热固性机油滤纸的制备方法为：
a)改性纳米地开石的制备方法为：将地开石粉碎成2-3cm后放入质量分数78％的的过氧化氢溶液中，超声震荡12h，取出干燥后在500℃下煅烧3h，而后研磨成纳米粉末得到改性纳米地开石，超声功率为90kw，备用；
b)将针叶漂白木浆、麻浆纤维、玉米纤维、菠萝纤维、改性纳米地开石、玻璃微珠、磁性粒子与湿强剂混合进行打浆处理，打浆度为35-36°SR，湿重8g，然后对打浆得到的浆料进行筛选、净化及漂洗；漂洗后抄纸成型，得到原纸，干燥；
c)在酚醛树脂粉碎成粒径为15-20μm的粉料然后加入聚丙烯酸酯与助剂，混合均匀后涂布在步骤b)得到的原纸表面，涂布量为55g/㎡，涂布后经紫外光辐射完成预固化，紫外光源的波长为280-350nm，紫外光辐射的时间为45s；然后在100℃下干燥75s，得到热固性机油滤纸。
本发明实施例1-3制备的热固性机油滤纸的测定结果见表1。定量的测定采用GB/T451.2-2002纸和纸板定量的测定法；耐破度的测定采用GB/T454-2002纸耐破度的测定。
表1、测定结果
实施例1 实施例2 实施例3
定量(g/㎡) 139 155 210
厚度(mm) 0.35 0.37 0.39
瓦楞深度(mm) 0.1 0.2 0.3
透气度(L/㎡*S) 355 325 345
最大孔径(μm) 85 90 100
耐破度(Kpa) 300 320 315
平均孔径(μm) 65 75 80
交货水分(％) 5 7 6
应当理解的是，对于本领域普通技术人员来说，可以根据上述说明加以改进或变换，而所有这些改进和变换都应属于本发明所附权利要求的保护范围。

Claims (8)

1.一种热固性机油滤纸，其特征在于，包括纸质的过滤层，过滤层表面均匀涂布树脂层，过滤层由以下重量份的原料组成：针叶漂白木浆70-120份、麻浆纤维30-40份、玉米纤维20-25份、菠萝纤维10-15份、改性纳米地开石3-5份、玻璃微珠1-2份、磁性粒子3-5份与湿强剂2-5份，树脂层由以下重量份的原料组成：酚醛树脂40-50份、聚丙烯酸酯20-30份与助剂6-10份。
2.根据权利要求1所述的一种热固性机油滤纸，其特征在于，改性纳米地开石的制备方法为：将地开石粉碎成2-3cm后放入质量分数72-78％的的过氧化氢溶液中，超声震荡10-12h，取出干燥后在450-500℃下煅烧2-3h，而后研磨成纳米粉末得到改性纳米地开石，超声功率为85-90kw。
3.根据权利要求1所述的一种热固性机油滤纸，其特征在于，磁性粒子为20-50nm的氧化铁磁性粒子。
4.根据权利要求1所述的一种热固性机油滤纸，其特征在于，助剂为光敏增效剂、增韧剂与硅藻土，光敏增效剂、增韧剂与硅藻土的质量比为5:2:3。
5.根据权利要求1所述的一种热固性机油滤纸，其特征在于，所述热固性机油滤纸定量为129-210g/㎡，厚度为0.35-0.39mm。
6.根据权利要求1所述的一种热固性机油滤纸，其特征在于，所述热固性机油滤纸的制备方法为：
a)改性纳米地开石的制备方法为：将地开石粉碎成2-3cm后放入质量分数72-78％的的过氧化氢溶液中，超声震荡10-12h，取出干燥后在450-500℃下煅烧2-3h，而后研磨成纳米粉末得到改性纳米地开石，超声功率为85-90kw，备用；
b)将针叶漂白木浆、麻浆纤维、玉米纤维、菠萝纤维、改性纳米地开石、玻璃微珠、磁性粒子与湿强剂混合进行打浆处理，打浆度为35-36°SR，湿重7.6-8g，然后对打浆得到的浆料进行筛选、净化及漂洗；漂洗后抄纸成型，得到原纸，干燥；
c)在酚醛树脂粉碎成粒径为15-20μm的粉料然后加入聚丙烯酸酯与助剂，混合均匀后涂布在步骤b)得到的原纸表面，涂布量为40-55g/㎡，涂布后经紫外光辐射完成预固化；然后在90-100℃下干燥60-75s，得到热固性机油滤纸。
7.根据权利要求6所述的一种热固性机油滤纸，其特征在于，步骤c)中紫外光源的波长为280-350nm，紫外光辐射的时间为35-45s。
8.根据权利要求4所述的一种热固性机油滤纸，其特征在于，增韧剂为聚乙二醇、聚三羟基丙烷或壳聚糖。
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