CN106012683A - 一种抗污、高接触面积的双层复合燃油滤纸及其制备方法 - Google Patents
一种抗污、高接触面积的双层复合燃油滤纸及其制备方法 Download PDFInfo
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Abstract
本发明公开了一种抗污、高接触面积的双层复合燃油滤纸及其制备方法,其特征在于,是由以下重量份的原料制得:环糊精1‑3,阔叶木浆纤维10‑20,草木灰1‑2,针叶松木浆纤维10‑20,涤纶纤维10‑20,海泡石纳米纤维10‑20,花生壳1‑2,Fe2O3 3‑5,TiO2 5‑10,MgO 4‑8,硅烷偶联剂KH560 25‑35,聚氧化乙烯水溶液15‑20,钛酸酯偶联剂DNZ201 2‑4,异丙醇50‑60,苯丙乳液5‑10,聚丙烯酸酯乳液适量;本发明改善了层与层之间的空隙,同时保留了明显的孔隙梯度,提高过滤效率;滤纸进行压皱处理,增大了燃油和滤纸的接触面积,进一步提高过滤效率;配合添加了环糊精,能与污染物形成稳定的包络物,从而减少环境污染。
Description
技术领域
本发明涉及一种燃油滤纸,属于过滤材料领域,具体涉及一种抗污、高接触面积的双层复合燃油滤纸及其制备方法。
背景技术
燃油滤纸是一种经过树脂浸渍加工的过滤用纸,主要作用是除去燃油中的杂质,防止发动机零件过度磨损,延长其寿命。燃油处理技术是一种主要针对燃料而实施的改进技术。这种方法的实施提高了发动机燃烧效率,减少污染物排放。
光催化降解技术是一种利用具有光催化功能的光半导体材料进行催化降解反应的应用技术。光催化降解材料在紫外线的照射下会产生自由电子和空穴,因而具有很强的光氧化还原能力,对汽车尾气中的有机物和无机物起到氧化分解的作用。TiO2是最典型的光半导体材料,受光后会生成氧化还原性较强的氢氧自由基,这部分自由基会通过氧化还原反应将汽车尾气中的有机物质和有害气体转化为H2O、CO和盐等排入大气中。TiO2是一种氧化还原催化剂在反应的过程中不会直接参与其中,且催化性具有永久性,不会随反应时间的延长而消耗。
李燕霞在《有机无机复合过滤材料的设计》中,利用木浆和合成纤维合成了一种单层的有机无机复合过滤材料,孔隙的梯度还不够明显,过滤精度欠佳,同时滤纸的接触面积、强度、耐火性也存在着改进的空间。
发明内容
基于以上思考,本发明的目的在于提供一种燃油滤纸的配方,对燃油滤纸存在的过滤精度不好,接触面积小,强度耐火度欠佳进行改进,本发明采用的技术方案如下:
一种抗污、高接触面积的双层复合燃油滤纸,其特征在于,由以下重量份的原料制成:
环糊精1-3,阔叶木浆纤维10-20,草木灰1-2,针叶松木浆纤维10-20,涤纶纤维10-20,海泡石纳米纤维10-20,花生壳1-2,Fe2O3 3-5,TiO2 5-10,MgO 4-8,硅烷偶联剂KH560
25-35,聚氧化乙烯水溶液15-20,钛酸酯偶联剂DNZ201 2-4,异丙醇50-60,苯丙乳液5-10,聚丙烯酸酯乳液适量;
所述聚氧化乙烯水溶液浓度为0.007%-0.010%,苯丙乳液的固含量为40-50%,聚丙烯酸酯乳液固含量为30-50%。
一种抗污、高接触面积的双层复合燃油滤纸形状为褶皱状的皱纹纸。
一种抗污、高接触面积的双层复合燃油滤纸及其制备方法,其特征在于,由以下步骤制成:
a.
将Fe2O3、TiO2、MgO分散于1/2异丙醇中,加入钛酸酯偶联剂DNZ201和聚氧化乙烯水溶液,室温下磁力搅拌1-3h,然后经旋转蒸发干燥、干法研磨,得到在有机溶剂和纤维中分散性好的混合物;
b.
将花生壳、阔叶木浆纤维、草木灰、针叶松木浆纤维放入碎浆机中碎解,再由打浆机打浆,加入1/2苯丙乳液、1/2环糊精、1/2步骤a所得混合物,控制打浆浓度为4-8%,得到浆料;对得到的浆料进行压榨,得到含水量≤55%的原纸后,用聚丙烯酸酯乳液对其表面进行涂布,放入弧形干燥器中干燥,得到第一层滤纸;
c.
将涤纶纤维和海泡石纳米纤维加入到硅烷偶联剂KH560和剩余1/2异丙醇的混合液中,充分搅拌 10-30min 后,静置 5-10min,过滤,80-120℃条件下烘干,得到混合物;
d.
将步骤c得到的混合物放入碎浆机中碎解,再由打浆机打浆,加入剩余1/2苯丙乳液、1/2环糊精、1/2步骤a所得混合物,控制打浆浓度为4-8%,得到第二层浆料;
e. 将步骤b所得第一层滤纸小心的放入手抄片器中,使滤纸面积刚好覆盖抄片网面;将步骤d所得第二层浆料沿着引流棒缓慢覆盖第一层滤纸表面,再缓慢加水至适量,轻轻的搅拌数次,真空脱水成形;将抄好的双层复合滤纸放入弧形干燥器中干燥后,进行压纹起皱处理,即可。
本发明的有益效果为:采用在干燥层表面直接抄造的工艺方法,改善了层与层之间的空隙,同时保留了明显的孔隙梯度,提高过滤效率;添加一定量的海泡石纤维可调节滤纸的孔径和增加耐破度;加入Fe2O3和TiO2 ,对汽车尾气中的有机物和无机物起到氧化分解的作用;加入MgO使滤纸具有阻燃的特性,保证其使用安全,延长使用寿命;用钛酸酯偶联剂和分散剂对Fe2O3、TiO2和MgO进行处理,使得其在纤维中具有良好的分散性、相容性和稳定性;对滤纸进行压皱处理,增大了燃油和滤纸的接触面积,进一步提高过滤效率;配合添加了环糊精,能与污染物形成稳定的包络物,从而减少环境污染。
具体实施方式
为了使本发明实现的技术手段、创作特征、达成目的与功效易于明白了解,下面结合具体实施例,进一步阐述本发明。
实施例
一种抗污、高接触面积的双层复合燃油滤纸,其特征在于,由以下重量份的原料制成:
环糊精3,阔叶木浆纤维20,草木灰2,针叶松木浆纤维20,涤纶纤维20,海泡石纳米纤维20,花生壳2,Fe2O3 5,TiO2 10,MgO 8,硅烷偶联剂KH560
35,聚氧化乙烯水溶液20,钛酸酯偶联剂DNZ201 4,异丙醇60,苯丙乳液10,聚丙烯酸酯乳液适量;
所述聚氧化乙烯水溶液浓度为0.007%-0.010%,苯丙乳液的固含量为40-50%,聚丙烯酸酯乳液固含量为30-50%。
所述的一种抗污、高接触面积的双层复合燃油滤纸形状为褶皱状的皱纹纸。
所述的一种抗污、高接触面积的双层复合燃油滤纸及其制备方法,其特征在于,由以下步骤制成:
a.
将Fe2O3、TiO2、MgO分散于1/2异丙醇中,加入钛酸酯偶联剂DNZ201和聚氧化乙烯水溶液,室温下磁力搅拌1-3h,然后经旋转蒸发干燥、干法研磨,得到在有机溶剂和纤维中分散性好的混合物;
b.
将花生壳、阔叶木浆纤维、草木灰、针叶松木浆纤维放入碎浆机中碎解,再由打浆机打浆,加入1/2苯丙乳液、1/2环糊精、1/2步骤a所得混合物,控制打浆浓度为4-8%,得到浆料;对得到的浆料进行压榨,得到含水量≤55%的原纸后,用聚丙烯酸酯乳液对其表面进行涂布,放入弧形干燥器中干燥,得到第一层滤纸;
c.
将涤纶纤维和海泡石纳米纤维加入到硅烷偶联剂KH560和剩余1/2异丙醇的混合液中,充分搅拌 10-30min 后,静置 5-10min,过滤,80-120℃条件下烘干,得到混合物;
d.
将步骤c得到的混合物放入碎浆机中碎解,再由打浆机打浆,加入剩余1/2苯丙乳液、1/2环糊精、1/2步骤a所得混合物,控制打浆浓度为4-8%,得到第二层浆料;
e. 将步骤b所得第一层滤纸小心的放入手抄片器中,使滤纸面积刚好覆盖抄片网面;将步骤d所得第二层浆料沿着引流棒缓慢覆盖第一层滤纸表面,再缓慢加水至适量,轻轻的搅拌数次,真空脱水成形;将抄好的双层复合滤纸放入弧形干燥器中干燥后,进行压纹起皱处理,即可。
本发明的技术指标为:
CO的过滤效率≥8%,HC的过滤效率≥11%,NOx 的过滤效率≥ 44%。
Claims (3)
1.一种抗污、高接触面积的双层复合燃油滤纸,其特征在于,由以下重量份的原料制成:
环糊精1-3,阔叶木浆纤维10-20,草木灰1-2,针叶松木浆纤维10-20,涤纶纤维10-20,海泡石纳米纤维10-20,花生壳1-2,Fe2O3 3-5,TiO2 5-10,MgO 4-8,硅烷偶联剂KH560 25-35,聚氧化乙烯水溶液15-20,钛酸酯偶联剂DNZ201 2-4,异丙醇50-60,苯丙乳液5-10,聚丙烯酸酯乳液适量;
所述聚氧化乙烯水溶液浓度为0.007%-0.010%,苯丙乳液的固含量为40-50%,聚丙烯酸酯乳液固含量为30-50%。
2.根据权利要求1所述的一种抗污、高接触面积的双层复合燃油滤纸形状为褶皱状的皱纹纸。
3.根据权利要求1所述的一种抗污、高接触面积的双层复合燃油滤纸及其制备方法,其特征在于,由以下步骤制成:
a.
将Fe2O3、TiO2、MgO分散于1/2异丙醇中,加入钛酸酯偶联剂DNZ201和聚氧化乙烯水溶液,室温下磁力搅拌1-3h,然后经旋转蒸发干燥、干法研磨,得到在有机溶剂和纤维中分散性好的混合物;
b.
将花生壳、阔叶木浆纤维、草木灰、针叶松木浆纤维放入碎浆机中碎解,再由打浆机打浆,加入1/2苯丙乳液、1/2环糊精、1/2步骤a所得混合物,控制打浆浓度为4-8%,得到浆料;对得到的浆料进行压榨,得到含水量≤55%的原纸后,用聚丙烯酸酯乳液对其表面进行涂布,放入弧形干燥器中干燥,得到第一层滤纸;
c.
将涤纶纤维和海泡石纳米纤维加入到硅烷偶联剂KH560和剩余1/2异丙醇的混合液中,充分搅拌 10-30min 后,静置 5-10min,过滤,80-120℃条件下烘干,得到混合物;
d.
将步骤c得到的混合物放入碎浆机中碎解,再由打浆机打浆,加入剩余1/2苯丙乳液、1/2环糊精、1/2步骤a所得混合物,控制打浆浓度为4-8%,得到第二层浆料;
e. 将步骤b所得第一层滤纸小心的放入手抄片器中,使滤纸面积刚好覆盖抄片网面;将步骤d所得第二层浆料沿着引流棒缓慢覆盖第一层滤纸表面,再缓慢加水至适量,轻轻的搅拌数次,真空脱水成形;将抄好的双层复合滤纸放入弧形干燥器中干燥后,进行压纹起皱处理,即可。
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