CN108060585A - 一种高强度医用涂布无纺布的制备方法 - Google Patents
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Abstract
本发明公开了一种高强度医用涂布无纺布的制备方法,包括如下步骤:S1、向甲基丙烯酸酯共聚乳液中依次加入纳米碳化硅、耐候母粒粉、苎麻纤维素、二苯甲酮溶液后,搅拌得到涂料;S2、将无纺布样品浸泡于丙酮溶液中20‑25min后,用去离子水反复冲洗,烘干备用;S3、采用干法直接涂层的方法将步骤1制得的涂料刮涂于步骤2烘干待用的无纺布上;S4、将刮涂后的无纺布置于紫外下辐照;S5、将步骤4中辐照后的无纺布在100‑130℃的烘道内干燥18‑30min。本发明采用涂料对无纺布样品进行刮涂干燥后获得的涂布无纺布不仅耐久性能极佳,且无毒、质地柔软、透气好。
Description
技术领域
本发明涉及无纺布制造技术领域,具体涉及一种高强度医用涂布无纺布的制备方法。
背景技术
无纺布是一种非织造布,它是直接利用高聚物切片、短纤维或长丝将纤维通过气流或机械成网,然后经过水刺,针刺,或热轧加固,最后经过后整理形成的无编织的布料。具有柔软、透气和平面结构的新型纤维制品,优点是不产生纤维屑,强韧、耐用、丝般柔软,也是增强材料的一种,而且还有棉质的感觉,和棉织品相比,无纺布的袋子容易成形,而且造价便宜。
医用无纺布产品主要包括一次性口罩、防护服、手术衣、隔离衣、实验服。但是现有的医用无纺布常常强度和耐久性较差。
发明内容
基于背景技术存在的技术问题,本发明提出了一种高强度医用涂布无纺布的制备方法,本发明环保无污染,制得的医用涂布无纺布具有较高的强度和较好的耐久性。
本发明提出的一种高强度医用涂布无纺布的制备方法,包括如下步骤:
S1、向甲基丙烯酸酯共聚乳液中依次加入纳米碳化硅、耐候母粒粉、苎麻纤维素、二苯甲酮溶液后,搅拌得到涂料;
S2、将无纺布样品浸泡于丙酮溶液中20-25min后,用去离子水反复冲洗,烘干备用;
S3、采用干法直接涂层的方法将步骤1制得的涂料刮涂于步骤2烘干待用的无纺布上;
S4、将刮涂后的无纺布置于紫外下辐照;
S5、将步骤4中辐照后的无纺布在100-130℃的烘道内干燥18-30min。
优选地,S1中,甲基丙烯酸酯共聚乳液为50-60wt%的水分散型甲基丙烯酸酯共聚乳液。
优选地,S1中,甲基丙烯酸酯共聚乳液为甲基丙烯酸甲酯-甲基丙烯酸乙酯共聚乳液。
优选地,S1中,二苯甲酮溶液的质量分数为25-35wt%。
优选地,S1中,搅拌的时间为60-70min。
优选地,S1中,甲基丙烯酸酯共聚乳液、纳米碳化硅、耐候母粒粉、苎麻纤维素、二苯甲酮溶液的质量比为30-50:4-7:3-6:2-5:10-15。
优选地,S2中,丙酮溶液的浓度为12-20wt%。
优选地,S4中,紫外的辐照时间为20-25min。
本发明采用涂料对无纺布样品进行刮涂干燥后获得的涂布无纺布不仅耐久性能极佳,且无毒、质地柔软、透气好。本发明采用甲基丙烯酸酯共聚乳液、纳米碳化硅、耐候母粒粉、苎麻纤维素、二苯甲酮溶液混合制得涂料,其中,纳米碳化硅具备良好的机械性能和三维结构的稳定性;苎麻纤维素具有较高的取向度及结晶度,力学性能优异,将两者与耐候母粒粉配合作用,增韧的效果增强,显著提高无纺布的强度,使无纺布不易开裂、不变色,且有较大的伸展率;添加甲基丙烯酸酯共聚乳液,以二苯甲酮为引发剂,在紫外照射下引入酯基,改善无纺布的疏水性,减少细菌的滋生,提升无纺布的耐污效果。
具体实施方式
下面,通过具体实施例对本发明的技术方案进行详细说明。
实施例1
一种高强度医用涂布无纺布的制备方法,包括如下步骤:
S1、向甲基丙烯酸酯共聚乳液中依次加入纳米碳化硅、耐候母粒粉、苎麻纤维素、二苯甲酮溶液后,搅拌得到涂料;
S2、将无纺布样品浸泡于丙酮溶液中20min后,用去离子水反复冲洗,烘干备用;
S3、采用干法直接涂层的方法将步骤1制得的涂料刮涂于步骤2烘干待用的无纺布上;
S4、将刮涂后的无纺布置于紫外下辐照;
S5、将步骤4中辐照后的无纺布在130℃的烘道内干燥18min。
实施例2
一种高强度医用涂布无纺布的制备方法,包括如下步骤:
S1、向甲基丙烯酸酯共聚乳液中依次加入纳米碳化硅、耐候母粒粉、苎麻纤维素、二苯甲酮溶液后,搅拌得到涂料;
S2、将无纺布样品浸泡于丙酮溶液中25min后,用去离子水反复冲洗,烘干备用;
S3、采用干法直接涂层的方法将步骤1制得的涂料刮涂于步骤2烘干待用的无纺布上;
S4、将刮涂后的无纺布置于紫外下辐照;
S5、将步骤4中辐照后的无纺布在100℃的烘道内干燥30min;
其中,S1中,甲基丙烯酸酯共聚乳液为60wt%的水分散型甲基丙烯酸酯共聚乳液。
实施例3
一种高强度医用涂布无纺布的制备方法,包括如下步骤:
S1、向甲基丙烯酸酯共聚乳液中依次加入纳米碳化硅、耐候母粒粉、苎麻纤维素、二苯甲酮溶液后,搅拌得到涂料;
S2、将无纺布样品浸泡于丙酮溶液中22min后,用去离子水反复冲洗,烘干备用;
S3、采用干法直接涂层的方法将步骤1制得的涂料刮涂于步骤2烘干待用的无纺布上;
S4、将刮涂后的无纺布置于紫外下辐照;
S5、将步骤4中辐照后的无纺布在110℃的烘道内干燥20min;
其中,S1中,甲基丙烯酸酯共聚乳液为50wt%的水分散型甲基丙烯酸酯共聚乳液;
S1中,甲基丙烯酸酯共聚乳液为甲基丙烯酸甲酯-甲基丙烯酸乙酯共聚乳液。
实施例4
一种高强度医用涂布无纺布的制备方法,包括如下步骤:
S1、向甲基丙烯酸酯共聚乳液中依次加入纳米碳化硅、耐候母粒粉、苎麻纤维素、二苯甲酮溶液后,搅拌得到涂料;
S2、将无纺布样品浸泡于丙酮溶液中23min后,用去离子水反复冲洗,烘干备用;
S3、采用干法直接涂层的方法将步骤1制得的涂料刮涂于步骤2烘干待用的无纺布上;
S4、将刮涂后的无纺布置于紫外下辐照;
S5、将步骤4中辐照后的无纺布在120℃的烘道内干燥25min;
其中,S1中,甲基丙烯酸酯共聚乳液为55wt%的水分散型甲基丙烯酸酯共聚乳液;
S1中,甲基丙烯酸酯共聚乳液为甲基丙烯酸甲酯-甲基丙烯酸乙酯共聚乳液;
S1中,二苯甲酮溶液的质量分数为25wt%;
S1中,搅拌的时间为70min;
S1中,甲基丙烯酸酯共聚乳液、纳米碳化硅、耐候母粒粉、苎麻纤维素、二苯甲酮溶液的质量比为30:7:3:5:10;
S2中,丙酮溶液的浓度为20wt%;
S4中,紫外的辐照时间为20min。
实施例5
一种高强度医用涂布无纺布的制备方法,包括如下步骤:
S1、向甲基丙烯酸酯共聚乳液中依次加入纳米碳化硅、耐候母粒粉、苎麻纤维素、二苯甲酮溶液后,搅拌得到涂料;
S2、将无纺布样品浸泡于丙酮溶液中24min后,用去离子水反复冲洗,烘干备用;
S3、采用干法直接涂层的方法将步骤1制得的涂料刮涂于步骤2烘干待用的无纺布上;
S4、将刮涂后的无纺布置于紫外下辐照;
S5、将步骤4中辐照后的无纺布在125℃的烘道内干燥28min;
其中,S1中,甲基丙烯酸酯共聚乳液为58wt%的水分散型甲基丙烯酸酯共聚乳液;
S1中,甲基丙烯酸酯共聚乳液为甲基丙烯酸甲酯-甲基丙烯酸乙酯共聚乳液;
S1中,二苯甲酮溶液的质量分数为35wt%;
S1中,搅拌的时间为60min;
S1中,甲基丙烯酸酯共聚乳液、纳米碳化硅、耐候母粒粉、苎麻纤维素、二苯甲酮溶液的质量比为50:4:6:2:15;
S2中,丙酮溶液的浓度为12wt%;
S4中,紫外的辐照时间为25min。
以上所述,仅为本发明较佳的具体实施方式,但本发明的保护范围并不局限于此,任何熟悉本技术领域的技术人员在本发明揭露的技术范围内,根据本发明的技术方案及其发明构思加以等同替换或改变,都应涵盖在本发明的保护范围之内。
Claims (8)
1.一种高强度医用涂布无纺布的制备方法,其特征在于,包括如下步骤:
S1、向甲基丙烯酸酯共聚乳液中依次加入纳米碳化硅、耐候母粒粉、苎麻纤维素、二苯甲酮溶液后,搅拌得到涂料;
S2、将无纺布样品浸泡于丙酮溶液中20-25min后,用去离子水反复冲洗,烘干备用;
S3、采用干法直接涂层的方法将步骤1制得的涂料刮涂于步骤2烘干待用的无纺布上;
S4、将刮涂后的无纺布置于紫外下辐照;
S5、将步骤4中辐照后的无纺布在100-130℃的烘道内干燥18-30min。
2.根据权利要求1所述高强度医用涂布无纺布的制备方法,其特征在于,S1中,甲基丙烯酸酯共聚乳液为50-60wt%的水分散型甲基丙烯酸酯共聚乳液。
3.根据权利要求1或2所述高强度医用涂布无纺布的制备方法,其特征在于,S1中,甲基丙烯酸酯共聚乳液为甲基丙烯酸甲酯-甲基丙烯酸乙酯共聚乳液。
4.根据权利要求1-3任一项所述高强度医用涂布无纺布的制备方法,其特征在于,S1中,二苯甲酮溶液的质量分数为25-35wt%。
5.根据权利要求1-4任一项所述高强度医用涂布无纺布的制备方法,其特征在于,S1中,搅拌的时间为60-70min。
6.根据权利要求1-5任一项所述高强度医用涂布无纺布的制备方法,其特征在于,S1中,甲基丙烯酸酯共聚乳液、纳米碳化硅、耐候母粒粉、苎麻纤维素、二苯甲酮溶液的质量比为30-50:4-7:3-6:2-5:10-15。
7.根据权利要求1-6任一项所述高强度医用涂布无纺布的制备方法,其特征在于,S2中,丙酮溶液的浓度为12-20wt%。
8.根据权利要求1-7任一项所述高强度医用涂布无纺布的制备方法,其特征在于,S4中,紫外的辐照时间为20-25min。
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