CN109468838A - 一种耐磨抗静电无纺布 - Google Patents
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- KKCBUQHMOMHUOY-UHFFFAOYSA-N sodium oxide Chemical compound [O-2].[Na+].[Na+] KKCBUQHMOMHUOY-UHFFFAOYSA-N 0.000 description 1
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Abstract
本发明提供了一种耐磨抗静电无纺布,该无纺布是表面覆有耐磨抗静电涂层的水刺无纺布,所述耐磨抗静电涂层是结合有氧化石墨烯的改性丙烯酸树脂涂层;该耐磨抗静电无纺布的处理方法包括如下几个步骤:(1)改性丙烯酸树脂的合成;(2)纳米氧化锌的制备;(3)将改性丙烯酸树脂、纳米氧化锌混合,加入树脂质量2‑4%的氧化石墨烯、树脂质量1‑3%的湿润分散剂,搅拌均匀,超声分散25‑30min,随后加入树脂质量30%的固化剂和树脂质量15‑20%的无水乙醇,混合均匀,得混合涂料;(4)混合涂料浸涂到水刺无纺布上;本发明所得无纺布具有良好的耐磨性、抗静电性和防水性,有效的弥补了现有无纺布存在的缺陷。
Description
技术领域
本发明涉及无纺布技术领域,具体涉及一种耐磨抗静电无纺布。
背景技术
无纺布(英文名:Non Woven Fabric或者Nonwoven cloth)又称不织布,是由定向的或随机的纤维而构成。因具有布的外观和某些性能而称其为布。
无纺布具有防潮、透气、柔韧、质轻、不助燃、容易分解、无毒无刺激性、色彩丰富、价格低廉、可循环再用等特点。如多采用聚丙烯(pp材质)粒料为原料,经高温熔融、喷丝、铺纲、热压卷取连续一步法生产而成。
目前,制造无尘擦拭纸的常用无纺布有三种。第一种是射流喷网成布法(简称水刺法)制备的不同比例的纤维素短纤(如粘胶纤维)和涤纶短纤结合的无纺布,虽然该无纺布吸水性能较好、但是短纤容易在擦拭过程中脱落,造成对擦拭面的污染。第二种是采用化纤长丝制备的无纺布,如PP熔喷布、PP或PET纺粘布,虽然该无纺布的长纤不易脱落,但是由于化纤表面疏水,因此吸水性能较差。第三种是纤维素长纤无纺布,纤维素长纤不易脱落,吸水性能优异,但是纤维素长纤强度较一般化纤要小,长纤之间的粘结力较弱,在擦拭过程中,纤维素长纤容易被钩断,耐磨性能较差。
在公开日为2012年3月21日公开的一篇中国公开的专利文件CN102383307A中公开了一种用于制造无尘擦拭纸的抗静电耐磨无纺布及其处理方法,抗静电耐磨无纺布是表面涂覆有抗静电涂层的纤维素长纤无纺布或者不同比例的纤维素短纤和涤纶短纤相结合的水刺无纺布,所述的抗静电涂层是结合有带活性基团的抗静电剂的三聚氰胺树脂涂层。处理方法包括(1)配制抗静电涂层溶液,(2)将抗静电涂层溶液通过浸涂工艺涂敷到无纺布上;(3)将含抗静电涂层溶液的无纺布烘干;(4)将烘干后无纺布成卷包装,得到抗静电耐磨无纺布。本发明的抗静电耐磨无纺布抗静电性能持久、耐磨性能好、使用过程中纤维不易被钩断、脱落纤维数少。处理工艺简单、能将抗静电剂牢固结合在无纺布表面、不会对产品产生污染。
但现有的无纺布通常存在耐水性差,抗静电性差,不耐磨的缺陷。
发明内容
针对现有技术中存在的问题,本发明提供了一种耐磨抗静电无纺布,有效的弥补了现有技术存在的无纺布耐水性差,抗静电性差,不耐磨的缺陷。
为实现以上目的,本发明通过以下技术方案予以实现:
一种耐磨抗静电无纺布,该无纺布是表面覆有耐磨抗静电涂层的水刺无纺布,所述耐磨抗静电涂层是结合有氧化石墨烯的改性丙烯酸树脂涂层。
耐磨抗静电无纺布的处理方法包括如下几个步骤:
(1)改性丙烯酸树脂的合成:在装有温度计、搅拌器和冷凝器的三口烧瓶中,加入80-100ml的甲醛溶液,用三乙胺水溶液调节pH一定,加入2-3倍量与甲醛溶液的三聚氰胺,缓慢升温至70-75℃,搅拌混合均匀,30-35min后加入丙烯酸树脂溶液,在1500-1600r/min的条件下搅拌0.5-1h,即得;
(2)纳米氧化锌的制备:在室温下,将25-30ml,0.5mol/l的七水合硫酸锌和50-60ml,0.4mol/l的油酸钠加入200-250ml环己烷中,充分搅拌均匀,静置5-10min,加入70-80ml,0.4mol/l的氢氧化钠,经磁力搅拌一定时间,随后真空干燥,即得;
(3)将改性丙烯酸树脂、纳米氧化锌混合,加入树脂质量2-4%的氧化石墨烯、树脂质量1-3%的湿润分散剂,搅拌均匀,超声分散25-30min,随后加入树脂质量30%的固化剂和树脂质量15-20%的无水乙醇,混合均匀,得混合涂料;
(4)将混合涂料通过浸涂工艺均匀涂敷到水刺无纺布上,并在一定温度条件下烘干,即得耐磨抗静电无纺布。
优选的,所述耐磨抗静电无纺布的处理方法的步骤(1)中用三乙胺水溶液调节pH为8-8.5。
优选的,所述耐磨抗静电无纺布的处理方法的步骤(2)中磁力搅拌时间为30-40min。
优选的,所述耐磨抗静电无纺布的处理方法的步骤(3)中固化剂为乙二胺。
优选的,所述耐磨抗静电无纺布的处理方法的步骤(4)中烘干温度为40-50℃。
本发明的有益效果是:
三聚氰胺经甲醛处理,得醚化三聚氰胺,其中,含有羧甲基、甲氧基和三嗪环结构,作为交联剂引入到丙烯酸树脂溶液中,能够与乳液中的羟基、羧基发生交联缩聚反应,使得丙烯酸树脂大分子间交联形成更加致密的空间网络结构,增加了分子链间作用力,使分子链的刚性增强,抗拉强度增大,形成一定程度网状结构后,耐水性和耐磨性有了明显提高,制备涂料涂覆在无纺布上后,增强了无纺布的耐水性和耐磨性。
氧化石墨烯添加量为丙烯酸树脂溶液的2-4%时,在溶液中分散的比较均匀,氧化石墨烯中的极性官能团能与丙烯酸树脂及固化剂起到交联作用,增强了交联密度,成膜后交联网状结构更加致密,增大了涂层力学强度,提高了耐磨性。
氧化石墨烯、纳米氧化锌、丙烯酸树脂溶液混合,制备涂料,涂覆在无纺布上,使得涂层体积电阻率减小,抗静电性增强,提高了无纺布的抗静电特性。
具体实施方式
为使本发明实施例的目的、技术方案和优点更加清楚,下面将结合本发明实施例,对本发明实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例是本发明一部分实施例,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作出创造性劳动前提下所获得的所有其他实施例,都属于本发明保护的范围。
实施例1:
一种耐磨抗静电无纺布,该无纺布是表面覆有耐磨抗静电涂层的水刺无纺布,所述耐磨抗静电涂层是结合有氧化石墨烯的改性丙烯酸树脂涂层。
上述耐磨抗静电无纺布的处理方法,包括以下步骤:
(1)改性丙烯酸树脂的合成:在装有温度计、搅拌器和冷凝器的三口烧瓶中,加入80ml的甲醛溶液,用三乙胺水溶液调节pH为8.5,加入2倍量与甲醛溶液的三聚氰胺,缓慢升温至75℃,搅拌混合均匀,30min后加入丙烯酸树脂溶液,在1600r/min的条件下搅拌0.5h,即得;
(2)纳米氧化锌的制备:在室温下,将30ml,0.5mol/l的七水合硫酸锌和50ml,0.4mol/l的油酸钠加入250ml环己烷中,充分搅拌均匀,静置5min,加入80ml,0.4mol/l的氢氧化钠,经磁力搅拌30min,随后真空干燥,即得;
(3)将改性丙烯酸树脂、纳米氧化锌混合,加入树脂质量4%的氧化石墨烯、树脂质量1%的湿润分散剂,搅拌均匀,超声分散30min,随后加入树脂质量30%的乙二胺和树脂质量15%的无水乙醇,混合均匀,得混合涂料;
(4)将混合涂料通过浸涂工艺均匀涂敷到水刺无纺布上,并在50℃条件下烘干,即得耐磨抗静电无纺布。
实施例2:
一种耐磨抗静电无纺布,该无纺布是表面覆有耐磨抗静电涂层的水刺无纺布,所述耐磨抗静电涂层是结合有氧化石墨烯的改性丙烯酸树脂涂层。
上述耐磨抗静电无纺布的处理方法,包括以下步骤:
(1)改性丙烯酸树脂的合成:在装有温度计、搅拌器和冷凝器的三口烧瓶中,加入100ml的甲醛溶液,用三乙胺水溶液调节pH为8,加入3倍量与甲醛溶液的三聚氰胺,缓慢升温至70℃,搅拌混合均匀,35min后加入丙烯酸树脂溶液,在1500r/min的条件下搅拌1h,即得;
(2)纳米氧化锌的制备:在室温下,将25ml,0.5mol/l的七水合硫酸锌和60ml,0.4mol/l的油酸钠加入200ml环己烷中,充分搅拌均匀,静置10min,加入70ml,0.4mol/l的氢氧化钠,经磁力搅拌40min,随后真空干燥,即得;
(3)将改性丙烯酸树脂、纳米氧化锌混合,加入树脂质量2%的氧化石墨烯、树脂质量3%的湿润分散剂,搅拌均匀,超声分散25min,随后加入树脂质量30%的乙二胺和树脂质量20%的无水乙醇,混合均匀,得混合涂料;
(4)将混合涂料通过浸涂工艺均匀涂敷到水刺无纺布上,并在40℃条件下烘干,即得耐磨抗静电无纺布。
实施例3:
一种耐磨抗静电无纺布,该无纺布是表面覆有耐磨抗静电涂层的水刺无纺布,所述耐磨抗静电涂层是结合有氧化石墨烯的改性丙烯酸树脂涂层。
上述耐磨抗静电无纺布的处理方法,包括以下步骤:
(1)改性丙烯酸树脂的合成:在装有温度计、搅拌器和冷凝器的三口烧瓶中,加入90ml的甲醛溶液,用三乙胺水溶液调节pH为8,加入2倍量与甲醛溶液的三聚氰胺,缓慢升温至70℃,搅拌混合均匀,30min后加入丙烯酸树脂溶液,在1550r/min的条件下搅拌0.5h,即得;
(2)纳米氧化锌的制备:在室温下,将25ml,0.5mol/l的七水合硫酸锌和55ml,0.4mol/l的油酸钠加入210ml环己烷中,充分搅拌均匀,静置10min,加入75ml,0.4mol/l的氢氧化钠,经磁力搅拌35min,随后真空干燥,即得;
(3)将改性丙烯酸树脂、纳米氧化锌混合,加入树脂质量3%的氧化石墨烯、树脂质量2%的湿润分散剂,搅拌均匀,超声分散30min,随后加入树脂质量30%的乙二胺和树脂质量15%的无水乙醇,混合均匀,得混合涂料;
(4)将混合涂料通过浸涂工艺均匀涂敷到水刺无纺布上,并在45℃条件下烘干,即得耐磨抗静电无纺布。
实施例4:
一种耐磨抗静电无纺布,该无纺布是表面覆有耐磨抗静电涂层的水刺无纺布,所述耐磨抗静电涂层是结合有氧化石墨烯的改性丙烯酸树脂涂层。
上述耐磨抗静电无纺布的处理方法,包括以下步骤:
(1)改性丙烯酸树脂的合成:在装有温度计、搅拌器和冷凝器的三口烧瓶中,加入90ml的甲醛溶液,用三乙胺水溶液调节pH为8.5,加入2倍量与甲醛溶液的三聚氰胺,缓慢升温至75℃,搅拌混合均匀,30min后加入丙烯酸树脂溶液,在1540r/min的条件下搅拌1h,即得;
(2)纳米氧化锌的制备:在室温下,将25ml,0.5mol/l的七水合硫酸锌和60ml,0.4mol/l的油酸钠加入240ml环己烷中,充分搅拌均匀,静置10min,加入70ml,0.4mol/l的氢氧化钠,经磁力搅拌40min,随后真空干燥,即得;
(3)将改性丙烯酸树脂、纳米氧化锌混合,加入树脂质量4%的氧化石墨烯、树脂质量3%的湿润分散剂,搅拌均匀,超声分散30min,随后加入树脂质量30%的乙二胺和树脂质量20%的无水乙醇,混合均匀,得混合涂料;
(4)将混合涂料通过浸涂工艺均匀涂敷到水刺无纺布上,并在50℃条件下烘干,即得耐磨抗静电无纺布。
将本发明所得无纺布与现有技术所提供的无纺布进行对比测试,结果如下:
体积电阻率/10<sup>8</sup>Ω·cm | 纤维脱落数≥100μm | |
实施例1 | 3.2 | 325 |
实施例2 | 3.1 | 320 |
实施例3 | 3.3 | 323 |
实施例4 | 3.2 | 321 |
现有技术 | 5.4 | 547 |
由上表可知,本发明所得无纺布与现有技术提供的相比具有良好的抗静电性和耐磨性。
以上实施例仅用以说明本发明的技术方案,而非对其限制;尽管参照前述实施例对本发明进行了详细的说明,本领域的普通技术人员应当理解:其依然可以对前述各实施例所记载的技术方案进行修改,或者对其中部分技术特征进行等同替换;而这些修改或者替换,并不使相应技术方案的本质脱离本发明各实施例技术方案的精神和范围。
Claims (6)
1.一种耐磨抗静电无纺布,其特征在于,所述耐磨抗静电无纺布无纺布是表面覆有耐磨抗静电涂层的水刺无纺布,所述耐磨抗静电涂层是结合有氧化石墨烯的改性丙烯酸树脂涂层。
2.根据权利要求1所述的耐磨抗静电无纺布,其特征在于,所述耐磨抗静电无纺布的处理方法包括如下几个步骤:
(1)改性丙烯酸树脂的合成:在装有温度计、搅拌器和冷凝器的三口烧瓶中,加入80-100ml的甲醛溶液,用三乙胺水溶液调节pH一定,加入2-3倍量与甲醛溶液的三聚氰胺,缓慢升温至70-75℃,搅拌混合均匀,30-35min后加入丙烯酸树脂溶液,在1500-1600r/min的条件下搅拌0.5-1h,即得;
(2)纳米氧化锌的制备:在室温下,将25-30ml,0.5mol/l的七水合硫酸锌和50-60ml,0.4mol/l的油酸钠加入200-250ml环己烷中,充分搅拌均匀,静置5-10min,加入70-80ml,0.4mol/l的氢氧化钠,经磁力搅拌一定时间,随后真空干燥,即得;
(3)将改性丙烯酸树脂、纳米氧化锌混合,加入树脂质量2-4%的氧化石墨烯、树脂质量1-3%的湿润分散剂,搅拌均匀,超声分散25-30min,随后加入树脂质量30%的固化剂和树脂质量15-20%的无水乙醇,混合均匀,得混合涂料;
(4)将混合涂料通过浸涂工艺均匀涂敷到水刺无纺布上,并在一定温度条件下烘干,即得耐磨抗静电无纺布。
3.根据权利要求2所述的耐磨抗静电无纺布,其特征在于,所述步骤(1)中用三乙胺水溶液调节pH为8-8.5。
4.根据权利要求2所述的耐磨抗静电无纺布,其特征在于,所述步骤(2)中磁力搅拌时间为30-40min。
5.根据权利要求2所述的耐磨抗静电无纺布,其特征在于,所述步骤(3)中固化剂为乙二胺。
6.根据权利要求2所述的耐磨抗静电无纺布,其特征在于,所述步骤(4)中烘干温度为40-50℃。
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