CN109385902A - 超疏水棉纤维材料及其制备方法 - Google Patents
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Abstract
本发明公开了一种超疏水棉纤维材料,其制备原料包括棉纤维材料、二氧化硅溶胶、聚硅氧烷、烷烃硅氧烷、氢氧化钠。该超疏水棉纤维材料具有很好的超疏水性能和透气性能,可以应用在服饰面料、包装、卫生用品等领域。本发明还公开了超疏水棉纤维材料的制备方法,该制备方法所使用原料易的、操作简便和对环境友好。
Description
技术领域
本发明涉及一种具有超疏水性能的纤维材料及其制备方法。
背景技术
纤维素是自然界储量最为丰富的天然高分子,可迅速再生,可以说取之不尽用之不竭。而且纤维素还具有易降解,无污染,易于改性等多个优点。到目前为止,纤维素及其衍生物已经广泛应用于塑料、纺织、造纸、食品、日化、医药、建筑和生物等领域,并有可能成为化学和化工的主要原料之一。发展纤维素材料对改善生态环境,改变人类饮食结构,增加能源,发展新型材料等都将具有非常重大的意义。
目前,具有良好防水透气性能的服装受到大众的喜欢。通常所用的防水服装是含有塑料或橡胶成分的复合材料,在保证防水的同时,透气性能受到影响。而使用有机高分子材料制成的服装,其透气性能也不如纯纤维素面料。因此,在保证透气性的同时兼顾防水性,疏水的纤维素类材料是最理想的材料之一。
日用品和食品包装中气体透过性在延长保存期或保存新鲜度上有重要功能。但是一般用的纸质包装袋由于其强烈的吸水性,受到了限制。通常采用的纸/塑料复合材料可以降低其吸水效果,但气体透过性能明显降低,很难满足包装的要求。因此,开发具有疏水、透气性能的纸质包装材料就显得尤为重要。
超疏水表面是指与水的接触角大于150°的表面。一般来说,超疏水表面可以通过两种方法来制备:一种是在聚硅氧烷(接触角大于90°)表面构建粗糙结构;另一种是在粗糙表面修饰低表面能的物质。超疏水表面因其具有拒水、防污、防粘以及自清洁等性能而逐渐受到人们的青睐。
尽管已经有了很多可以制备超疏水棉纤维材料的方法,但是成功的范例大多采用的工艺较为复杂,不利于实际应用。因此,我们需要一种符合环保条件、工艺简单、成本低,可以应用于工业化大批量生产,同时使纤维得到优良的柔软性和平滑性,改善纤维的亲水性能。
发明内容
为解决现有技术的不足,达到上述目的,本发明首先提供一种超疏水棉纤维材料,其制备原料包括棉纤维材料、二氧化硅溶胶、聚硅氧烷、烷烃硅氧烷、氢氧化钠。
优选地,所述聚硅氧烷为聚十六烷基甲基硅氧烷、聚十六烷基甲氧基硅氧烷和聚十六烷基乙氧基硅氧烷中的一个。
优选地,所述棉纤维材料为木棉纤维。
优选地,所述烷烃硅氧烷是甲基甲氧基硅氧烷、乙基甲氧基硅氧烷、丙基甲氧基硅氧烷和十二烷基甲氧基硅氧烷中的一种。
更优选地,所述烷烃硅氧烷是乙基甲氧基硅氧烷、丙基甲氧基硅氧烷和十二烷基甲氧基硅氧烷中的一种。
本发明还提供一种超疏水棉纤维材料的制备方法,其步骤包括:
(1)将1-10g聚硅氧烷、1-10g烷烃硅氧烷加入到50-100g二氧化硅溶胶中,50-100℃下搅拌10-70min,得混合溶胶A;
(2)向质量分数为1-10%的氢氧化钠水溶液中通入氮气,氢氧化钠∶氮气的质量配比为1∶20,以制备氢氧化钠无氧水溶液;
(3)取步骤(2)所得的氢氧化钠无氧水溶液5-20g,将其加入步骤(1)的混合溶胶A中,50-80℃下,搅拌10-70min,得混合溶胶B;
(4)30-60℃下,将棉纤维材料浸入步骤(3)的混合溶胶B中,浸渍20-60min后,过滤,将固体在100℃下烘干12min,再放入预热到180℃的烘箱中烘60min,即得超疏水棉纤维材料。
优选地,所述聚硅氧烷为聚二甲基硅氧烷、聚十六烷基甲基硅氧烷、聚十六烷基甲氧基硅氧烷和聚十六烷基乙氧基硅氧烷中的一个。
优选地,所述棉纤维材料为木棉纤维。
优选地,所述烷烃硅氧烷是二甲基二甲氧基硅烷、甲基甲氧基硅氧烷、乙基甲氧基硅氧烷、丙基甲氧基硅氧烷和十二烷基甲氧基硅氧烷中的一种。
优选地,所述烷烃硅氧烷是乙基甲氧基硅氧烷、丙基甲氧基硅氧烷和十二烷基甲氧基硅氧烷、二甲基二甲氧基硅烷中的一种。
本发明制备的超疏水棉纤维材料,具有良好的疏水能力。同时本发明的制备方法原料易的、操作简便的要求。
具体实施方式
下面结合具体实施例,进一步阐述本发明。应当理解为,这些实施例仅用于说明本发明而不用于限制本发明的范围。在阅读了本发明记载的内容之后,本领域普通技术人员可以对本发明作各种改动或修改,这些形式同样落于本申请权利要求书所限定的范围内。
实施例1
一种超疏水棉纤维材料的制备方法,其步骤为:
(1)将1g聚二甲基硅氧烷、1g二甲基二甲氧基硅烷加入到50g二氧化硅溶胶中,50℃下搅拌10min,得混合溶胶A;
(2)向质量分数为1%的氢氧化钠水溶液中通入氮气,氢氧化钠∶氮气的质量配比为1∶20,以制备氢氧化钠无氧水溶液;
(3)取步骤(2)所得的氢氧化钠无氧水溶液5g,将其加入步骤(1)的混合溶胶A中,50℃下,搅拌10min,得混合溶胶B;
(4)30℃下,将木棉纤维浸入步骤(3)的混合溶胶B中,浸渍20min后,过滤,将固体在100℃下烘干12min,再放入预热到180℃的烘箱中烘60min,即得超疏水棉纤维材料。
实施例2
一种超疏水棉纤维材料的制备方法,其步骤为:
(1)将10g聚二甲基硅氧烷、10g二甲基二甲氧基硅烷加入到100g二氧化硅溶胶中,100℃下搅拌70min,得混合溶胶A;
(2)向质量分数为10%的氢氧化钠水溶液中通入氮气,氢氧化钠∶氮气的质量配比为1∶20,以制备氢氧化钠无氧水溶液;
(3)取步骤(2)所得的氢氧化钠无氧水溶液20g,将其加入步骤(1)的混合溶胶A中,80℃下,搅拌70min,得混合溶胶B;
(4)60℃下,将木棉纤维浸入步骤(3)的混合溶胶B中,浸渍60min后,过滤,将固体在100℃下烘干12min,再放入预热到180℃的烘箱中烘60min,即得超疏水棉纤维材料。
实施例3
一种超疏水棉纤维材料的制备方法,其步骤为:
(1)将4g聚二甲基硅氧烷、5g二甲基二甲氧基硅烷加入到78g二氧化硅溶胶中,80℃下搅拌35min,得混合溶胶A;
(2)向质量分数为3%的氢氧化钠水溶液中通入氮气,氢氧化钠∶氮气的质量配比为1∶20,以制备氢氧化钠无氧水溶液;
(3)取步骤(2)所得的氢氧化钠无氧水溶液15g,将其加入步骤(1)的混合溶胶A中,70℃下,搅拌28min,得混合溶胶B;
(4)50℃下,将木棉纤维浸入步骤(3)的混合溶胶B中,浸渍30min后,过滤,将固体在100℃下烘干12min,再放入预热到180℃的烘箱中烘60min,即得超疏水棉纤维材料。
实施例4
一种超疏水棉纤维材料的制备方法,其步骤为:
(1)将4g聚二甲基硅氧烷、5g二甲基二甲氧基硅烷、5g二甲基亚砜、1g异丙醇加入到78g二氧化硅溶胶中,80℃下搅拌35min,得混合溶胶A;
(2)向质量分数为3%的氢氧化钠水溶液中通入氮气,氢氧化钠∶氮气的质量配比为1∶20,以制备氢氧化钠无氧水溶液;
(3)取步骤(2)所得的氢氧化钠无氧水溶液15g,将其加入步骤(1)的混合溶胶A中,70℃下,搅拌28min,得混合溶胶B;
(4)50℃下,将木棉纤维浸入步骤(3)的混合溶胶B中,浸渍30min后,过滤,将固体在100℃下烘干12min,再放入预热到180℃的烘箱中烘60min,即得超疏水棉纤维材料。
实施例5
一种超疏水棉纤维材料的制备方法,其步骤为:
(1)将4g聚二甲基硅氧烷、5g二甲基二甲氧基硅烷、5g二甲基亚砜、1g异丙醇、2g 3-(4-甲基-1H-咪唑-1-基)-5-(三氟甲基)苯胺、0.5g硅烷偶联剂KH-560、1g 1, 5-萘二磺酸加入到78g二氧化硅溶胶中,80℃下搅拌35min,得混合溶胶A;
(2)向质量分数为3%的氢氧化钠水溶液中通入氮气,氢氧化钠∶氮气的质量配比为1∶20,以制备氢氧化钠无氧水溶液;
(3)取步骤(2)所得的氢氧化钠无氧水溶液15g,将其加入步骤(1)的混合溶胶A中,70℃下,搅拌28min,得混合溶胶B;
(4)50℃下,将木棉纤维浸入步骤(3)的混合溶胶B中,浸渍30min后,过滤,将固体在100℃下烘干12min,再放入预热到180℃的烘箱中烘60min,即得超疏水棉纤维材料。
对比例1
一种超疏水棉纤维材料的制备方法,其步骤为:
(1)将4g聚二甲基硅氧烷、5g二甲基二甲氧基硅烷、1g异丙醇加入到78g二氧化硅溶胶中,80℃下搅拌35min,得混合溶胶A;
(2)向质量分数为3%的氢氧化钠水溶液中通入氮气,氢氧化钠∶氮气的质量配比为1∶20,以制备氢氧化钠无氧水溶液;
(3)取步骤(2)所得的氢氧化钠无氧水溶液15g,将其加入步骤(1)的混合溶胶A中,70℃下,搅拌28min,得混合溶胶B;
(4)50℃下,将木棉纤维浸入步骤(3)的混合溶胶B中,浸渍30min后,过滤,将固体在100℃下烘干12min,再放入预热到180℃的烘箱中烘60min,即得超疏水棉纤维材料。
对比例2
一种超疏水棉纤维材料的制备方法,其步骤为:
(1)将4g聚二甲基硅氧烷、5g二甲基二甲氧基硅烷、5g二甲基亚砜加入到78g二氧化硅溶胶中,80℃下搅拌35min,得混合溶胶A;
(2)向质量分数为3%的氢氧化钠水溶液中通入氮气,氢氧化钠∶氮气的质量配比为1∶20,以制备氢氧化钠无氧水溶液;
(3)取步骤(2)所得的氢氧化钠无氧水溶液15g,将其加入步骤(1)的混合溶胶A中,70℃下,搅拌28min,得混合溶胶B;
(4)50℃下,将木棉纤维浸入步骤(3)的混合溶胶B中,浸渍30min后,过滤,将固体在100℃下烘干12min,再放入预热到180℃的烘箱中烘60min,即得超疏水棉纤维材料。
对比例3
一种超疏水棉纤维材料的制备方法,其步骤为:
(1)将4g聚二甲基硅氧烷、5g二甲基二甲氧基硅烷、5g二甲基亚砜、1g异丙醇、2g 3-(4-甲基-1H-咪唑-1-基)-5-(三氟甲基)苯胺、0.5g硅烷偶联剂KH-560加入到78g二氧化硅溶胶中,80℃下搅拌35min,得混合溶胶A;
(2)向质量分数为3%的氢氧化钠水溶液中通入氮气,氢氧化钠∶氮气的质量配比为1∶20,以制备氢氧化钠无氧水溶液;
(3)取步骤(2)所得的氢氧化钠无氧水溶液15g,将其加入步骤(1)的混合溶胶A中,70℃下,搅拌28min,得混合溶胶B;
(4)50℃下,将木棉纤维浸入步骤(3)的混合溶胶B中,浸渍30min后,过滤,将固体在100℃下烘干12min,再放入预热到180℃的烘箱中烘60min,即得超疏水棉纤维材料。
对比例4
一种超疏水棉纤维材料的制备方法,其步骤为:
(1)将4g聚二甲基硅氧烷、5g二甲基亚砜、1g异丙醇、2g 3-(4-甲基-1H-咪唑-1-基)-5-(三氟甲基)苯胺、0.5g硅烷偶联剂KH-560、1g 1, 5-萘二磺酸加入到78g二氧化硅溶胶中,80℃下搅拌35min,得混合溶胶A;
(2)向质量分数为3%的氢氧化钠水溶液中通入氮气,氢氧化钠∶氮气的质量配比为1∶20,以制备氢氧化钠无氧水溶液;
(3)取步骤(2)所得的氢氧化钠无氧水溶液15g,将其加入步骤(1)的混合溶胶A中,70℃下,搅拌28min,得混合溶胶B;
(4)50℃下,将木棉纤维浸入步骤(3)的混合溶胶B中,浸渍30min后,过滤,将固体在100℃下烘干12min,再放入预热到180℃的烘箱中烘60min,即得超疏水棉纤维材料。
测试
测试上述实施例1-5以及对比例1-4所得超疏水棉纤维材料的水接触角,结果见下表1:
示例 | 水接触角 |
实施例1 | 151° |
实施例2 | 147° |
实施例3 | 155° |
实施例4 | 162° |
实施例5 | 168° |
对比例1 | 148° |
对比例2 | 146° |
对比例3 | 158° |
对比例4 | 157° |
Claims (10)
1.一种超疏水棉纤维材料,其特征在于,其制备原料包括棉纤维材料、二氧化硅溶胶、聚硅氧烷、烷烃硅氧烷、氢氧化钠。
2.如权利要求1所述的一种超疏水棉纤维材料,其特征在于,所述聚硅氧烷为聚二甲基硅氧烷、聚十六烷基甲基硅氧烷、聚十六烷基甲氧基硅氧烷和聚十六烷基乙氧基硅氧烷中的一个。
3.如权利要求1所述的一种超疏水棉纤维材料,其特征在于,所述棉纤维材料为木棉纤维。
4.如权利要求1-2任一个所述的一种超疏水棉纤维材料,其特征在于,所述烷烃硅氧烷是甲基甲氧基硅氧烷、乙基甲氧基硅氧烷、丙基甲氧基硅氧烷和十二烷基甲氧基硅氧烷、二甲基二甲氧基硅烷中的一种。
5.如权利要求1-4所述的一种超疏水棉纤维材料,其特征在于,所述烷烃硅氧烷是乙基甲氧基硅氧烷、丙基甲氧基硅氧烷和十二烷基甲氧基硅氧烷、二甲基二甲氧基硅烷中的一种。
6.一种超疏水棉纤维材料的制备方法,其特征在于,步骤包括:
(1)将1-10g聚硅氧烷、1-10g烷烃硅氧烷加入到50-100g二氧化硅溶胶中,50-100℃下搅拌10-70min,得混合溶胶A;
(2)向质量分数为1-10%的氢氧化钠水溶液中通入氮气,氢氧化钠∶氮气的质量配比为1∶20,以制备氢氧化钠无氧水溶液;
(3)取步骤(2)所得的氢氧化钠无氧水溶液5-20g,将其加入步骤(1)的混合溶胶A中,50-80℃下,搅拌10-70min,得混合溶胶B;
(4)30-60℃下,将棉纤维材料浸入步骤(3)的混合溶胶B中,浸渍20-60min后,过滤,将固体在100℃下烘干12min,再放入预热到180℃的烘箱中烘60min,即得超疏水棉纤维材料。
7.根据权利要求6所述的方法,其中所述聚硅氧烷为聚十六烷基甲基硅氧烷、聚十六烷基甲氧基硅氧烷和聚十六烷基乙氧基硅氧烷中的一个。
8.根据权利要求6所述的方法,其中所述棉纤维材料为木棉纤维。
9.根据权利要求6所述的方法,其中所述烷烃硅氧烷是甲基甲氧基硅氧烷、乙基甲氧基硅氧烷、丙基甲氧基硅氧烷和十二烷基甲氧基硅氧烷中的一种。
10.根据权利要求9所述的方法,其中所述烷烃硅氧烷是乙基甲氧基硅氧烷、丙基甲氧基硅氧烷和十二烷基甲氧基硅氧烷中的一种。
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