CN111607902A - 一种具有粗糙表面的疏水熔喷布及其制备方法 - Google Patents
一种具有粗糙表面的疏水熔喷布及其制备方法 Download PDFInfo
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Abstract
本发明实施例涉及熔喷布技术领域,具体公开了一种具有粗糙表面的疏水熔喷布,所述的疏水熔喷布包括如下按重量份组成的原料:聚丙烯切片40‑60份、聚丁烯对苯二甲酸酯切片15‑20份、氯化联苯3‑5份、二硫化钼3‑5份、无机阻燃剂1‑5份、纳米纤维材料20‑25份。本发明实施例还公开了一种所述的具有粗糙表面的疏水熔喷布的制备方法。本发明以聚丙烯切片、聚丁烯对苯二甲酸酯切片为基体,通过加入、氯化联苯、无机阻燃剂和二硫化钼进行改性,可以大幅提升熔喷加工中熔体流动性,对熔喷得到的熔喷布涂覆一层纳米纤维材料,调整疏水性处理的参数,有效改变熔喷布表面的润湿性能,提高水的表面张力,提升熔喷布的疏水性。
Description
技术领域
本发明实施例涉及熔喷布技术领域,具体是一种具有粗糙表面的疏水熔喷布及其制备方法。
背景技术
寻求和开发研制具备超疏水性能的新型材料一直是人们所关注的课题,也是多年来仿生学领域研究的热点之一。超疏水织物因优异的抗粘结、防污和自清洁等特殊性能而备受人们的青睐,可广泛应用在防雨/防污户外服、潜水衣、室内装饰织物、野营帐篷、军用作战服、工业用防水布、医药卫生用纺织品等方面。
聚丙烯本身为无毒、无臭、无味的乳白色高结晶的聚合物,它对水特别稳定,几乎不吸水。
而以聚丙烯为主要原料的熔喷布,纤维直径可以达到1~5微米,这些具有独特的毛细结构的超细纤维可以增加单位面积纤维的数量和表面积,从而使熔喷布在具有很好的透气性的同时,还具有良好的拒水性能。近年来,拒水透气织物在工业和生活中需求越来越多,研究者们采用各种方法处理织物表面,以求达到理想的拒水透气效果。现有的对熔喷布的超疏水处理,无法达到更好的的疏水效果。
发明内容
本发明实施例的目的在于提供一种具有粗糙表面的疏水熔喷布及其制备方法,以解决上述背景技术中提出的问题。为实现上述目的,本发明实施例提供如下技术方案:
一种具有粗糙表面的疏水熔喷布,所述的疏水熔喷布包括如下按重量份组成的原料:聚丙烯切片40-60份、聚丁烯对苯二甲酸酯切片15-20份、氯化联苯3-5份、二硫化钼3-5份、无机阻燃剂1-5份、纳米纤维材料20-25份。
作为本发明实施例技术方案的进一步限定,所述的疏水熔喷布包括如下按重量份组成的原料:聚丙烯切片45-55份、聚丁烯对苯二甲酸酯切片17-19份、氯化联苯3.5-4.5份、二硫化钼3.5-4.5份、无机阻燃剂2-4份、纳米纤维材料22-24份。
作为本发明实施例技术方案的进一步限定,所述的疏水熔喷布包括如下按重量份组成的原料:聚丙烯切片50份、聚丁烯对苯二甲酸酯切片18份、氯化联苯4份、二硫化钼4份、无机阻燃剂3份、纳米纤维材料23份。
作为本发明实施例技术方案的进一步限定,所述的疏水熔喷布表面具有凹凸粗糙结构。
作为本发明实施例技术方案的进一步限定,所述熔喷布的纤维直径为2.5-4um,表面粗糙度参数Ra为0.1um-0.3um。
作为本发明实施例技术方案的进一步限定,所述无机阻燃剂包括氢氧化铝、氢氧化镁的任意一种。
一种所述的具有粗糙表面的疏水熔喷布的制备方法,所述的制备方法包括以下具体步骤:
S10、将干燥后的改性树脂切片喂入螺杆挤出机中,经过加热管融后由管体分配管道到达喷头前端的喷丝口,并由喷丝口喷出;同时,管体会受到喷丝口两侧与溶体挤出方向成一定角度的高温、高压气流的喷吹,在这两股高速热气流的作用下熔体被拉伸成超细纤维,并通过与周围冷空气的热交换固化成丝;
S20、固化后的纤维在气流的作用下沉积在接收装置上,通过自身的粘合作用形成熔喷布;
S30、在熔喷布上涂覆一层纳米纤维材料;二氧化硅颗粒、二氧化钛颗粒以及二氧化锌颗粒都是纳米级的颗粒,具有良好的疏水性,本步骤中的作用是将纳米纤维材料涂覆在纺织纤维上,使得每一根纺织纤维都具有了一定的疏水性;
S40、将涂覆有纳米纤维材料的熔喷布夹在两层目数为300-700目的筛网中,并送入热轧机中热轧,热轧后的熔喷布从两层筛网中取出,即得表面具有凹凸粗糙结构的疏水熔喷布。
作为本发明实施例技术方案的进一步限定,所述改性树脂切片的制备方法为:将聚丙烯切片、聚丁烯对苯二甲酸酯切片、氯化联苯、无机阻燃剂和二硫化钼放入真空烘箱中干燥。
作为本发明实施例技术方案的进一步限定,所述改性树脂切片的制备方法还包括将干燥后的聚丙烯切片、聚丁烯对苯二甲酸酯切片、氯化联苯、无机阻燃剂和二硫化钼在双螺杆挤出机中共混,将熔体细流在水槽中冷凝,之后经风干机风干,切粒机切粒,得到改性树脂切片。
作为本发明实施例技术方案的进一步限定,所述的纳米纤维材料为二氧化硅颗粒、二氧化钛颗粒以及二氧化锌颗粒中的一种。
与现有技术相比,本发明实施例的有益效果是:
本发明以聚丙烯切片、聚丁烯对苯二甲酸酯切片为基体,通过加入、氯化联苯、无机阻燃剂和二硫化钼进行改性,可以大幅提升熔喷加工中熔体流动性,制备出一种孔径较小、过滤精度较高的改性熔喷布,制备得到的熔喷布强度高、弹性好;同时,对熔喷得到的熔喷布涂覆一层纳米纤维材料,调整疏水性处理的参数,有效改变熔喷布表面的润湿性能,提高水的表面张力,提升熔喷布的疏水性。
具体实施方式
为了使本发明所要解决的技术问题、技术方案及有益效果更加清楚明白,以下结合实施例,对本发明进行进一步详细说明。应当理解,此处所描述的具体实施例仅仅用以解释本发明,并不用于限定本发明。
实施例1
在本发明提供的实施例中,一种具有粗糙表面的疏水熔喷布,所述的疏水熔喷布包括如下按重量份组成的原料:聚丙烯切片40份、聚丁烯对苯二甲酸酯切片15份、氯化联苯3份、二硫化钼3份、无机阻燃剂1份、纳米纤维材料20份。
进一步的,所述的疏水熔喷布表面具有凹凸粗糙结构。
进一步的,所述熔喷布的纤维直径为2.5um,表面粗糙度参数Ra为0.1um。
进一步的,所述的无机阻燃剂包括氢氧化铝。
一种所述的具有粗糙表面的疏水熔喷布的制备方法,其特征在于,所述的制备方法包括以下具体步骤:S10、将干燥后的改性树脂切片喂入螺杆挤出机中,经过加热管融后由管体分配管道到达喷头前端的喷丝口,并由喷丝口喷出;同时,管体会受到喷丝口两侧与溶体挤出方向成一定角度的高温、高压气流的喷吹,在这两股高速热气流的作用下熔体被拉伸成超细纤维,并通过与周围冷空气的热交换固化成丝;
S20、固化后的纤维在气流的作用下沉积在接收装置上,通过自身的粘合作用形成熔喷布;
S30、在熔喷布上涂覆一层纳米纤维材料;二氧化硅颗粒、二氧化钛颗粒以及二氧化锌颗粒都是纳米级的颗粒,具有良好的疏水性,本步骤中的作用是将纳米纤维材料涂覆在纺织纤维上,使得每一根纺织纤维都具有了一定的疏水性;
S40、将涂覆有纳米纤维材料的熔喷布夹在两层目数为300目的筛网中,并送入热轧机中热轧,热轧后的熔喷布从两层筛网中取出,即得表面具有凹凸粗糙结构的疏水熔喷布。
进一步的,所述改性树脂切片的制备方法为:将聚丙烯切片、聚丁烯对苯二甲酸酯切片、氯化联苯、无机阻燃剂和二硫化钼放入真空烘箱中干燥。
进一步的,所述改性树脂切片的制备方法还包括将干燥后的聚丙烯切片、聚丁烯对苯二甲酸酯切片、氯化联苯、无机阻燃剂和二硫化钼在双螺杆挤出机中共混,将熔体细流在水槽中冷凝,之后经风干机风干,切粒机切粒,得到改性树脂切片。
进一步的,所述的纳米纤维材料为二氧化硅颗粒。
实施例2
在本发明提供的实施例中,一种具有粗糙表面的疏水熔喷布,所述的疏水熔喷布包括如下按重量份组成的原料:聚丙烯切片45份、聚丁烯对苯二甲酸酯切片17份、氯化联苯3.5份、二硫化钼3.5份、无机阻燃剂2份、纳米纤维材料22份。
进一步的,所述的疏水熔喷布表面具有凹凸粗糙结构。
进一步的,所述熔喷布的纤维直径为3um,表面粗糙度参数Ra为0.2um。
进一步的,所述的无机阻燃剂包括氢氧化铝。
一种所述的具有粗糙表面的疏水熔喷布的制备方法,其特征在于,所述的制备方法包括以下具体步骤:S10、将干燥后的改性树脂切片喂入螺杆挤出机中,经过加热管融后由管体分配管道到达喷头前端的喷丝口,并由喷丝口喷出;同时,管体会受到喷丝口两侧与溶体挤出方向成一定角度的高温、高压气流的喷吹,在这两股高速热气流的作用下熔体被拉伸成超细纤维,并通过与周围冷空气的热交换固化成丝;
S20、固化后的纤维在气流的作用下沉积在接收装置上,通过自身的粘合作用形成熔喷布;
S30、在熔喷布上涂覆一层纳米纤维材料;二氧化硅颗粒、二氧化钛颗粒以及二氧化锌颗粒都是纳米级的颗粒,具有良好的疏水性,本步骤中的作用是将纳米纤维材料涂覆在纺织纤维上,使得每一根纺织纤维都具有了一定的疏水性;
S40、将涂覆有纳米纤维材料的熔喷布夹在两层目数为400目的筛网中,并送入热轧机中热轧,热轧后的熔喷布从两层筛网中取出,即得表面具有凹凸粗糙结构的疏水熔喷布。
进一步的,所述改性树脂切片的制备方法为:将聚丙烯切片、聚丁烯对苯二甲酸酯切片、氯化联苯、无机阻燃剂和二硫化钼放入真空烘箱中干燥。
进一步的,所述改性树脂切片的制备方法还包括将干燥后的聚丙烯切片、聚丁烯对苯二甲酸酯切片、氯化联苯、无机阻燃剂和二硫化钼在双螺杆挤出机中共混,将熔体细流在水槽中冷凝,之后经风干机风干,切粒机切粒,得到改性树脂切片。
进一步的,所述的纳米纤维材料为二氧化硅颗粒。
实施例3
在本发明提供的实施例中,一种具有粗糙表面的疏水熔喷布,所述的疏水熔喷布包括如下按重量份组成的原料:聚丙烯切片50份、聚丁烯对苯二甲酸酯切片18份、氯化联苯4份、二硫化钼4份、无机阻燃剂3份、纳米纤维材料23份。
进一步的,所述的疏水熔喷布表面具有凹凸粗糙结构。
进一步的,所述熔喷布的纤维直径为3um,表面粗糙度参数Ra为0.2um。
进一步的,所述的无机阻燃剂包括氢氧化镁。
一种所述的具有粗糙表面的疏水熔喷布的制备方法,其特征在于,所述的制备方法包括以下具体步骤:S10、将干燥后的改性树脂切片喂入螺杆挤出机中,经过加热管融后由管体分配管道到达喷头前端的喷丝口,并由喷丝口喷出;同时,管体会受到喷丝口两侧与溶体挤出方向成一定角度的高温、高压气流的喷吹,在这两股高速热气流的作用下熔体被拉伸成超细纤维,并通过与周围冷空气的热交换固化成丝;
S20、固化后的纤维在气流的作用下沉积在接收装置上,通过自身的粘合作用形成熔喷布;
S30、在熔喷布上涂覆一层纳米纤维材料;二氧化硅颗粒、二氧化钛颗粒以及二氧化锌颗粒都是纳米级的颗粒,具有良好的疏水性,本步骤中的作用是将纳米纤维材料涂覆在纺织纤维上,使得每一根纺织纤维都具有了一定的疏水性;
S40、将涂覆有纳米纤维材料的熔喷布夹在两层目数为500目的筛网中,并送入热轧机中热轧,热轧后的熔喷布从两层筛网中取出,即得表面具有凹凸粗糙结构的疏水熔喷布。
进一步的,所述改性树脂切片的制备方法为:将聚丙烯切片、聚丁烯对苯二甲酸酯切片、氯化联苯、无机阻燃剂和二硫化钼放入真空烘箱中干燥。
进一步的,所述改性树脂切片的制备方法还包括将干燥后的聚丙烯切片、聚丁烯对苯二甲酸酯切片、氯化联苯、无机阻燃剂和二硫化钼在双螺杆挤出机中共混,将熔体细流在水槽中冷凝,之后经风干机风干,切粒机切粒,得到改性树脂切片。
进一步的,所述的纳米纤维材料为二氧化钛颗粒。
实施例4
在本发明提供的实施例中,一种具有粗糙表面的疏水熔喷布,所述的疏水熔喷布包括如下按重量份组成的原料:聚丙烯切片55份、聚丁烯对苯二甲酸酯切片19份、氯化联苯4.5份、二硫化钼4.5份、无机阻燃剂4份、纳米纤维材料24份。
进一步的,所述的疏水熔喷布表面具有凹凸粗糙结构。
进一步的,所述熔喷布的纤维直径为3.5um,表面粗糙度参数Ra为0.3um。
进一步的,所述的无机阻燃剂包括氢氧化镁。
一种所述的具有粗糙表面的疏水熔喷布的制备方法,其特征在于,所述的制备方法包括以下具体步骤:S10、将干燥后的改性树脂切片喂入螺杆挤出机中,经过加热管融后由管体分配管道到达喷头前端的喷丝口,并由喷丝口喷出;同时,管体会受到喷丝口两侧与溶体挤出方向成一定角度的高温、高压气流的喷吹,在这两股高速热气流的作用下熔体被拉伸成超细纤维,并通过与周围冷空气的热交换固化成丝;
S20、固化后的纤维在气流的作用下沉积在接收装置上,通过自身的粘合作用形成熔喷布;
S30、在熔喷布上涂覆一层纳米纤维材料;二氧化硅颗粒、二氧化钛颗粒以及二氧化锌颗粒都是纳米级的颗粒,具有良好的疏水性,本步骤中的作用是将纳米纤维材料涂覆在纺织纤维上,使得每一根纺织纤维都具有了一定的疏水性;
S40、将涂覆有纳米纤维材料的熔喷布夹在两层目数为600目的筛网中,并送入热轧机中热轧,热轧后的熔喷布从两层筛网中取出,即得表面具有凹凸粗糙结构的疏水熔喷布。
进一步的,所述改性树脂切片的制备方法为:将聚丙烯切片、聚丁烯对苯二甲酸酯切片、氯化联苯、无机阻燃剂和二硫化钼放入真空烘箱中干燥。
进一步的,所述改性树脂切片的制备方法还包括将干燥后的聚丙烯切片、聚丁烯对苯二甲酸酯切片、氯化联苯、无机阻燃剂和二硫化钼在双螺杆挤出机中共混,将熔体细流在水槽中冷凝,之后经风干机风干,切粒机切粒,得到改性树脂切片。
进一步的,所述的纳米纤维材料为二氧化锌颗粒。
实施例5
在本发明提供的实施例中,一种具有粗糙表面的疏水熔喷布,所述的疏水熔喷布包括如下按重量份组成的原料:聚丙烯切片60份、聚丁烯对苯二甲酸酯切片20份、氯化联苯5份、二硫化钼5份、无机阻燃剂5份、纳米纤维材料25份。
进一步的,所述的疏水熔喷布表面具有凹凸粗糙结构。
进一步的,所述熔喷布的纤维直径为4um,表面粗糙度参数Ra为0.3um。
进一步的,所述的无机阻燃剂包括氢氧化铝。
一种所述的具有粗糙表面的疏水熔喷布的制备方法,其特征在于,所述的制备方法包括以下具体步骤:S10、将干燥后的改性树脂切片喂入螺杆挤出机中,经过加热管融后由管体分配管道到达喷头前端的喷丝口,并由喷丝口喷出;同时,管体会受到喷丝口两侧与溶体挤出方向成一定角度的高温、高压气流的喷吹,在这两股高速热气流的作用下熔体被拉伸成超细纤维,并通过与周围冷空气的热交换固化成丝;
S20、固化后的纤维在气流的作用下沉积在接收装置上,通过自身的粘合作用形成熔喷布;
S30、在熔喷布上涂覆一层纳米纤维材料;二氧化硅颗粒、二氧化钛颗粒以及二氧化锌颗粒都是纳米级的颗粒,具有良好的疏水性,本步骤中的作用是将纳米纤维材料涂覆在纺织纤维上,使得每一根纺织纤维都具有了一定的疏水性;
S40、将涂覆有纳米纤维材料的熔喷布夹在两层目数为700目的筛网中,并送入热轧机中热轧,热轧后的熔喷布从两层筛网中取出,即得表面具有凹凸粗糙结构的疏水熔喷布。
进一步的,所述改性树脂切片的制备方法为:将聚丙烯切片、聚丁烯对苯二甲酸酯切片、氯化联苯、无机阻燃剂和二硫化钼放入真空烘箱中干燥。
进一步的,所述改性树脂切片的制备方法还包括将干燥后的聚丙烯切片、聚丁烯对苯二甲酸酯切片、氯化联苯、无机阻燃剂和二硫化钼在双螺杆挤出机中共混,将熔体细流在水槽中冷凝,之后经风干机风干,切粒机切粒,得到改性树脂切片。
进一步的,所述的纳米纤维材料为二氧化钛颗粒。
综上所述,本发明实施例以聚丙烯切片、聚丁烯对苯二甲酸酯切片为基体,通过加入、氯化联苯、无机阻燃剂和二硫化钼进行改性,可以大幅提升熔喷加工中熔体流动性,制备出一种孔径较小、过滤精度较高的改性熔喷布,制备得到的熔喷布强度高、弹性好;同时,对熔喷得到的熔喷布涂覆一层纳米纤维材料,调整疏水性处理的参数,有效改变熔喷布表面的润湿性能,提高水的表面张力,提升熔喷布的疏水性。
以上所述仅为本发明的较佳实施例而已,并不用以限制本发明,凡在本发明的精神和原则之内所作的任何修改、等同替换和改进等,均应包含在本发明的保护范围之内。
Claims (10)
1.一种具有粗糙表面的疏水熔喷布,其特征在于,所述的疏水熔喷布包括如下按重量份组成的原料:聚丙烯切片40-60份、聚丁烯对苯二甲酸酯切片15-20份、氯化联苯3-5份、二硫化钼3-5份、无机阻燃剂1-5份、纳米纤维材料20-25份。
2.根据权利要求1所述的具有粗糙表面的疏水熔喷布,其特征在于,所述的疏水熔喷布包括如下按重量份组成的原料:聚丙烯切片45-55份、聚丁烯对苯二甲酸酯切片17-19份、氯化联苯3.5-4.5份、二硫化钼3.5-4.5份、无机阻燃剂2-4份、纳米纤维材料22-24份。
3.根据权利要求2所述的具有粗糙表面的疏水熔喷布,其特征在于,所述的疏水熔喷布包括如下按重量份组成的原料:聚丙烯切片50份、聚丁烯对苯二甲酸酯切片18份、氯化联苯4份、二硫化钼4份、无机阻燃剂3份、纳米纤维材料23份。
4.根据权利要求1-3任一所述的具有粗糙表面的疏水熔喷布,其特征在于,所述的疏水熔喷布表面具有凹凸粗糙结构。
5.根据权利要求4所述的具有粗糙表面的疏水熔喷布,其特征在于,所述熔喷布的纤维直径为2.5-4um,表面粗糙度参数Ra为0.1um-0.3um。
6.根据权利要求5所述的具有粗糙表面的疏水熔喷布,其特征在于,所述的无机阻燃剂包括氢氧化铝、氢氧化镁的任意一种。
7.一种如权利要求1-6任一所述的具有粗糙表面的疏水熔喷布的制备方法,其特征在于,所述的制备方法包括以下具体步骤:
S10、将干燥后的改性树脂切片喂入螺杆挤出机中,经过加热管融后由管体分配管道到达喷头前端的喷丝口,并由喷丝口喷出;同时,管体会受到喷丝口两侧与溶体挤出方向成一定角度的高温、高压气流的喷吹,在这两股高速热气流的作用下熔体被拉伸成超细纤维,并通过与周围冷空气的热交换固化成丝;
S20、固化后的纤维在气流的作用下沉积在接收装置上,通过自身的粘合作用形成熔喷布;
S30、在熔喷布上涂覆一层纳米纤维材料;
S40、将涂覆有纳米纤维材料的熔喷布夹在两层目数为300-700目的筛网中,并送入热轧机中热轧,热轧后的熔喷布从两层筛网中取出,即得表面具有凹凸粗糙结构的疏水熔喷布。
8.根据权利要求7所述的具有粗糙表面的疏水熔喷布的制备方法,其特征在于,所述改性树脂切片的制备方法为:将聚丙烯切片、聚丁烯对苯二甲酸酯切片、氯化联苯、无机阻燃剂和二硫化钼放入真空烘箱中干燥。
9.根据权利要求8所述的具有粗糙表面的疏水熔喷布的制备方法,其特征在于,所述改性树脂切片的制备方法还包括将干燥后的聚丙烯切片、聚丁烯对苯二甲酸酯切片、氯化联苯、无机阻燃剂和二硫化钼在双螺杆挤出机中共混,将熔体细流在水槽中冷凝,之后经风干机风干,切粒机切粒,得到改性树脂切片。
10.根据权利要求9所述的具有粗糙表面的疏水熔喷布的制备方法,其特征在于,所述的纳米纤维材料为二氧化硅颗粒、二氧化钛颗粒以及二氧化锌颗粒中的一种。
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