CN114642214A - 一种抗菌材料 - Google Patents
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Abstract
本发明提供一种抗菌材料,包含氮化硅与活性炭之结合,所述抗菌材料可以大幅提升滤材与抗菌布料的抗病毒与抗菌能力,并增加对异味的吸附。
Description
技术领域
本发明提供一种抗菌材料,包含氮化硅与活性炭之结合。所述抗菌材料可以大幅提升滤材与抗菌布料的抗病毒与抗菌能力,并且增加对异味的吸附。
背景技术
具有多孔隙特性的布料,非常适合作为口罩、空调等气体过滤材料,但长期使用易在布料孔隙内孳生细菌或产生异味问题,能通过一种含有银离子之活性炭不织布结构(M522734)改善此问题。
然而活性炭接触空气中水气时,水分会在活性炭多孔隙表面凝结,导致吸附效果下降,且上述银离子或其他抗菌材料都需要接触才能达成抗菌效果,若材料无法密集的区域会导致抗菌性能下降的问题,同时银离子对人体是否有生物毒性及银离子生产价格,都为上述应用的限制。
近年开始针对不具有生物毒性的抗病或抗菌材料开发,包括使用氮化硅与氮化硼烧结体组成抗菌材料(JP2020-19677A),或氮化硅粉末作为涂层加工于对象表面,作为抵抗病毒的材料(US2020/0079651A1),但上述应用仅单纯提供灭菌功能,不具备吸附能力,因此无法提供完整之抗病毒、抗菌及消除异味之防护。
发明内容
为解决上述问题,本发明提供一种抗菌材料,包含氮化硅与活性炭之结合。本发明人意外发现,氮化硅能降低凝结在活性炭表面的水分,使活性炭维持原有多孔隙特性,进而达到吸附能力更持久的功效;并利用氮化硅将吸附于滤材之细菌、病毒破坏,如此可大幅提升材料的抗病毒与抗菌能力,并且增加对异味的吸附。
基于上述目的,本发明提供一种抗菌材料,该材料包含一活性炭与氮化硅之结合,活性炭材料具有多孔隙特性,主动吸附异味、病毒及细菌,再者氮化硅材料中具有不稳定之悬键(dangling bond)、不饱和键和/或其他未配对键合(free bonding)等活性官能基,使表面会强力与水分子反应并且释出氨(NH3),而吸附于活性炭材料表面之细菌或病毒会在氨作用下失去活性,同时水分子在强力与氮化硅材料结合的状况下,会减少水分凝结于活性炭表面,在交互作用下延长原本活性炭材料的吸附效果,并使本发明具有更佳的抗病毒与抗菌性能。
本发明提供一种抗菌材料,其中氮化硅所占比例为氮化硅与活性炭两种材料总重量的1~99wt%。
本发明提供一种抗菌材料,其中该氮化硅为含有α相及β相之混合相,而α相占氮化硅之比例为1~99%。
在本发明提供的抗菌材料中,其中氮化硅可为氮化硅粉末或预成型氮化硅的形式,上述预成型之方式不限于黏着、涂布、粉末烧结、编织氮化硅纤维或其他方式附着于天然或人造纤维等方式而实现;所述天然纤维可为植物纤维、木纤维、动物纤维或矿物纤维,如棉、麻、亚麻、磨木纸浆、蚕丝、石绵等;所述人造纤维可为再生纤维、半合成纤维和合成纤维,如嫘萦、醋酸纤维、耐纶、奥纶、达克纶等。
在本发明提供的抗菌材料中,其中活性炭可为活性炭粉末、活性炭纤维或预成型之活性炭的形式,上述预成型之活性炭可通过加热、涂布或其他方式附着于天然或人造纤维而实现;所述天然纤维可为植物纤维、木纤维、动物纤维或矿物纤维,如棉、麻、亚麻、磨木纸浆、蚕丝、石绵等;所述人造纤维可为再生纤维、半合成纤维或合成纤维,如嫘萦、醋酸纤维、耐纶、奥纶、达克纶等。
在本发明提供的抗菌材料中,所述活性炭与氮化硅之结合顺序不无影响其主要功能与特性。
在本发明中,所述活性炭与氮化硅之结合,包括两者以化学方式相结合,也包括两者以物理方式相接触、混合,也包括兼有化学方式和物理方式的结合和混合。
有关本申请的其它功效及实施例的详细内容,配合图式说明如下。
附图说明
为了更清楚地说明本申请实施例或现有技术中的技术方案,下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍,显而易见地,下面描述中的附图仅仅是本申请中记载的一些实施例,对于本领域普通技术人员来讲,在不付出创造性劳动的前提下,还可以根据这些附图获得其它的附图。
图1系本发明之第一实施例示意图,其中100为本发明的一种抗菌材料,101为氮化硅材料,102为活性炭材料;
图2系本发明之第二实施例示意图,其中200为本发明的一种抗菌材料,201为氮化硅与活性炭之混合颗粒;202为经编织的聚酯纤维布;
图3系本发明之第三实施例示意图,其中300为本发明的一种抗菌材料,301为活性炭材料,302为聚酯纤维无纺布,303为氮化硅材料。
具体实施方式
在下文的实施方式中所述的位置关系,包括:上,下,左和右,若无特别指明,皆是以图式中组件绘示的方向为基准。
参阅图1为本发明的第一实施例,其中揭示本发明之抗菌材料100,其中包括氮化硅材料101与活性炭材料102,本实施例中氮化硅材料101为氮化硅粉末,占整体重量的10wt%,且含有α相及β相之混合相,而α相比例为10%,活性炭材料102为活性炭纤维布,氮化硅材料101通过液体分散后进行喷涂,实现氮化硅材料101固定于活性炭材料102表面。
在第一实施例中,抗菌材料100作为口罩或外部防护衣,当接触到细菌、病毒或异味分子时,首先所述细菌、病毒或异味分子会受到具有多孔隙特性的活性炭材料102吸附,然而同时氮化硅材料101中具有不稳定之悬键(dangling bond)、不饱和键及/或其他未配对键合(free bonding)等活性官能基会强力与空气中之水分作用,并且释放出氨(NH3),化学式如下:
Si3N4+6H2O→3SiO2+4NH3
SiO2+2H2O→Si(OH)4
于氨(NH3)存在的环境下,会诱发细菌、病毒内RNA发生碱性转酯化交换作用,进而使吸附于活性炭材料102的细菌、病毒失去活性无法进一步增生,同时水分会优先与氮化硅作用,凝结在活性炭材料102表面的机率降低,提升活性炭对于异味吸附的能力,在吸附与抗菌同时作用下,本发明的抗菌材料作为口罩或防护衣,能拥有更好的抗病毒与抗菌性能。
实施例2
本发明的第二实施例如图2所示,其中揭示本发明之抗菌材料200,其中氮化硅材料与活性炭材料通过湿式球磨进行混合,形成混合颗粒201,混合时氮化硅材料之重量占氮化硅与活性炭材料混合总重的5%,且氮化硅含有α相及β相之混合相,而α相比例为30%,混合颗粒201通过液体涂布方式将颗粒固定于编织后聚酯纤维布202,由于聚酯纤维经常被用作日常生活中之衣裤帽子等材料,因此通过此结合更提升原有织物的功能性,使得成品能够具有抗病毒及抗菌之功效。
实施例3
本发明的另一实施例如图3所示,其中揭示本发明之抗菌材料剖面图300,其中活性炭材料301为高效率粉状活性炭,已于聚酯纤维不织布302制造过程中通过高温气氛稳固黏着于纤维表面,再通过液体涂布方式将氮化硅材料303固定于聚酯纤维无纺布302之纤维表面,氮化硅材料303重量占氮化硅与活性炭材料总重的20%,且氮化硅含有α相及β相之混合相,而α相比例为35%,通过以上比例加以组合,可使得聚酯纤维无纺布302能具有抗病及抗菌之功效,作为滤网产品可提升抗病毒及抗菌能力。
以上所述的实施例及/或实施方式,仅是用以说明实现本申请技术的较佳实施例及/或实施方式,并非对本申请技术的实施方式作任何形式上的限制,任何本领域技术人员,在不脱离本申请内容所公开的技术手段的范围,当可作些许的更动或修饰为其它等效的实施例,但仍应视为与本申请实质相同的技术或实施例。
Claims (9)
1.一种抗菌材料,其特征在于,所述材料包含活性炭与氮化硅。
2.根据权利要求1所述的抗菌材料,其特征在于,其中所述氮化硅的重量占氮化硅与活性炭两种材料总重量的1~99wt%。
3.根据权利要求1所述的抗菌材料,其特征在于,其中所述氮化硅含有α相及β相之混合相,而α相之比例为1~99%。
4.根据权利要求1所述的抗菌材料,其特征在于,其中所述氮化硅是氮化硅粉末或预成型氮化硅的形式,所述预成型的方式包括黏着、涂布、粉末烧结、编织氮化硅纤维或其他方式附着于天然纤维或人造纤维而实现。
5.根据权利要求4所述的抗菌材料,其特征在于,其中所述天然纤维是植物纤维、木纤维、动物纤维或矿物纤维,如棉、麻、亚麻、磨木纸浆、蚕丝、石绵等;所述人造纤维是再生纤维、半合成纤维或合成纤维,如嫘萦、醋酸纤维、耐纶、奥纶、达克纶等。
6.根据权利要求1所述的抗菌材料,其特征在于,其中所述活性炭材料是活性炭粉末、活性炭纤维或预成型活性炭的形式,其中所述预成型活性炭可通过加热、涂布或其他方式附着于纤维而实现。
7.根据权利要求6所述的抗菌材料,其特征在于,其中所述纤维为天然纤维或人造纤维,所述天然纤维是植物纤维、木纤维、动物纤维或矿物纤维,如棉、麻、亚麻、磨木纸浆、蚕丝、石绵等;所述人造纤维是再生纤维、半合成纤维或合成纤维,如嫘萦、醋酸纤维、耐纶、奥纶、达克纶等。
8.根据权利要求1所述的抗菌材料,其特征在于,其中所述活性炭与氮化硅以任意合适的方式结合。
9.根据权利要求8所述的抗菌材料,其特征在于,其中所述结合包括两者以化学方式相结合,也包括两者以物理方式相接触、混合,也包括兼有化学方式和物理方式的结合和混合。
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