CN106519373A - 一种具有抗菌保鲜的负离子母粒及其制备方法 - Google Patents
一种具有抗菌保鲜的负离子母粒及其制备方法 Download PDFInfo
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Abstract
本发明公开了一种具有抗菌保鲜的负离子母粒及其制备方法,所述的具有抗菌保鲜的负离子母粒由树脂、负离子粉、色粉、润滑剂、偶联剂和其他助剂组成。该母粒粒具有自动释放负离子功能,从而实现材料的抗菌、净化空气和食物保鲜的功能;该母粒与不同树脂基体相容性好,具有广谱性,同时制备工艺简单,生产成本低廉。
Description
技术领域
本发明属于高分子复合材料技术领域,具体涉及一种具有抗菌保鲜的负离子母粒及其制备方法。
背景技术
母粒(Color Master Batch)的全称叫母粒粒,也叫色种,是一种新型高分子材料专用着色剂,亦称颜料制备物(Pigment Preparation)。母粒主要用在塑料中。母粒由颜料或染料、载体和添加剂三种基本要素所组成,是把超常量的颜料均匀附载于树脂之中而制得的聚集体,可称颜料浓缩物(Pigment Concentration),所以它的着色力高于颜料本身。加工时使颜料在制品中具有更好的分散性,母粒生产过程中须对颜料进行细化处理,以提高颜料的分散性和着色力。
相比与其他着色方式,母粒粒主要有以下优点:1.专用母粒的载体与制品的塑料品种相同,具有良好的匹配性,加热熔融后颜料颗粒能很好地分散于制品塑料中。2.有利于保持颜料的化学稳定性。直接使用颜料的话,由于在贮存和使用过程中颜料直接接触空气,颜料会吸水、氧化等现象,而做成母粒后,由于树脂载体将颜料和空气、水分隔离,可以使颜料的品质长期不变。3.保证制品颜色的稳定。母粒颗粒与树脂颗粒相近,在计量上更方便准确,混合时不会粘附于容器上,与树脂的混合也较均匀,因此可以保证添加量的稳定,从而保证制品颜色的稳定。4.保护操作人员的健康。颜料一般是粉状,添加和混合时容易飞扬,被人体吸入后将影响操作人员的健康。5.保持环境的洁净。6.使用方便。
负离子粉,是人类利用自然界产生负离子的原理,人工合成或者配比的一种复合矿物,一般都是电气石粉+镧系元素或者稀土元素,其中稀土元素的配比比例大大超过了电气石粉,稀土占到了60%以上是稀土在产生负离子,还是电气石在产生负离子,目前学术界尚有争论。
空气是由无数分子、原子组成的。当空气中的分子或原子失去或获得电子后,便形成带电的粒子,称为离子;带正电荷的叫正离子,带负电荷的叫负离子。负离子是空气中一种带负电荷的气体离子,负离子不仅能促成人体合成和储存维生素,强化和激活人体的生理活动,对人体及其他生物的生命活动有着 十分重要的影响,因此它又被称为“空气维生素”。并认为它像食物的维生素一样,对人体及其他生物的生命活动有着十分重要的影响,有的甚至认为空气负离子与长寿有关,称它为“长寿素”。对于每个正负离子而言,它的寿命是短暂的,一般只存在几十分钟。因此,雷雨过后人们能够感觉到空气短暂的清新。
中国发明专利CN203657323U公开一种冰箱及冰箱盖板,本专利公开一种冰箱盖板的新型结构,通过优化冰箱盖板出风口的设计,实现节能降耗。
中国发明专利CN101545153A公开了一种负离子涤纶有色纤维及其制备和应用,该专利将含有负离子的母粒与涤纶切片和母粒粒经过熔融纺丝,制备具有负离子效应的有色纤维,但该专利中负离子母粒只能应用涤纶纤维的生产工艺。
中国实用新型专利CN 202522007 U公布了一种具有降解农药、杀菌、除臭、保鲜功能的冰箱,该专利公布的抗菌冰箱,通过在冰箱内胆、出风口等表面涂覆光触媒涂层,然后通过高压模块和离子发射针组成的系统,在通电的情况下逐渐释放负离子,在断电的情况下释放负离子将停止,这样释放负离子的过程必须在通电的情况下才能够实现,这样不仅消耗电能,而且随着使用时间的增加,负离子数快速降低。
发明内容
本发明针对现有技术中存在的应用单一、生产工艺复杂提供了一种适用于工业化连续生产、性价比高、应用广的抗菌负离子母粒粒。
本发明的另一个目的是提供一种具有抗菌保鲜的负离子母粒及其制备方法,为了达到上述目的,本发明是通过下列技术方案来实现的:一种具有抗菌保鲜的负离子母粒及其制备方法,包括:树脂10-90份、负离子粉0-50份、色粉0.1-40份、偶联剂0.01-5份、润滑剂0.01-15份、其他助剂0-60。
上述方案的优选方案是,
所述抗菌保鲜负离子母粒,首先将负离子粉、分散剂、偶联剂、润滑剂和其他助剂加入到一定温度的高速混合机中搅拌均匀,接着加入树脂继续混合,然后将搅拌均匀的混合物经挤出机熔融挤出,最后经切粒机进行造粒制备母粒粒。
所述的树脂为热塑性树脂,其中包括:聚丙烯、聚乙烯、丙烯氰-丁二烯-苯乙烯共聚物(ABS)、聚苯乙烯(GPPS)、高抗冲聚苯乙烯(HIPS)、乙烯- 乙酸乙烯脂共聚物(EVA)中一种或几种。
所述的负离子粉的负离子数大于10000个/cm3。
所述色粉包括无机颜料、有机颜料和染料中的一种或几种。
所述润滑剂为白油、乙撑双硬脂酰胺(EBS)、硬脂酸钙、硅酮粉、聚乙烯蜡中的至少一种。
所述偶联剂为硅烷类、铝酸酯类和钛酸酯类中至少一种。
所述的其他助剂包括碳酸钙、硫酸钡、抗氧剂、光稳剂。
本发明制备的一种抗菌保鲜的负离子母粒粒以热塑性树脂为基体,将负离子粉、颜料和其他功能性能助剂经过有效复配,能够满足不同材料和制品对负离子数量的需要和其他功能的需要进行调节。
本发明与现有技术相比,具有以下优点:
本发明公布的抗菌保鲜负离子母粒加入到树脂中注塑成制件后,不需要借助电能或其他设备能持续自发释放负离子,实现保鲜和抗菌的作用。
本发明中抗菌保鲜负离子母粒根据应用对象选用不同的树脂做载体,实现负离子粉和色粉的有效分散,能够与不同树脂很好的相容。
本发明中除抗菌保鲜的负离子母粒的制备方法简单,易于工业化批量生产,制备的负离子母粒便于运输和储存。
具体实施方式:
下面给出实施例以对本发明进行具体的描述,有必要在此指出的是以下实施例只用于对本发明进行进一步说明,不能理解为对本发明保护范围的限制,该领域的技术熟练人员根据本发明内容对本发明做出的一些非本质的改进和调整仍属于本发明的保护范围。
在本发明中,一种抗菌保鲜负离子母粒是先按重量配比称取负离子粉、色粉、偶联剂、润滑剂和其他助剂在一定温度的高速混合机中高速搅拌活化一定时间,然后,加入重量配比的树脂进行高速混合均匀,最后,将该混合物经过双螺杆挤出机进行挤出造粒,得到抗菌保鲜负离子母粒。在抗菌保鲜负离子母粒具体应用体系中,将该母粒粒和树脂按照重量比混合均匀后直接注塑成型或者挤出成型。
实施例1
按重量配比分别称取负离子数为20000的负离子粉0.1份,硅烷偶联剂0.01 份,润滑剂聚乙烯蜡3份,碳酸钙40份,放入80℃恒温高速搅拌机中,密闭上盖后,搅拌均匀后关闭高搅机;然后加入聚乙烯56.88份搅拌均匀后,加入双螺杆挤出机中,经熔融挤后,经过水冷,由切粒机切成长度为1-3mm的粒子,得到抗菌保鲜负离子母粒粒。
实施例2
按重量配比分别称取负离子数为10000的负离子粉5份,有机色粉0.3份,无机色粉39.7份,硅烷偶联剂0.1份,润滑剂聚乙烯蜡15份,放入40℃恒温高速搅拌机中,密闭上盖后,搅拌均匀后关闭高搅机;然后加入聚丙烯39.9份搅拌均匀后,加入双螺杆挤出机中,经熔融挤后,经过水冷,由切粒机切成长度为1-3mm的粒子,得到抗菌保鲜负离子母粒粒。
实施例3
按重量配比分别称取负离子数为30000的负离子粉30份,有机色粉1份,无机色粉20份,钛酸酯偶联剂5份,润滑剂EBS 5份,放入30℃恒温高速搅拌机中,密闭上盖后,搅拌均匀后关闭高搅机;然后加入EVA 39份搅拌均匀后,加入双螺杆挤出机中,经熔融挤后,经过水冷,由切粒机切成长度为1-3mm的粒子,得到抗菌保鲜负离子母粒粒。
实施例4
按重量配比分别称取负离子数为25000的负离子粉40份,有机色粉3份,无机色粉10份,铝酸酯偶联剂3份,润滑剂硅酮粉2份,润滑剂聚乙烯蜡1份,白油1份,放入60℃恒温高速搅拌机中,密闭上盖后,搅拌均匀后关闭高搅机;然后加入ABS 40份搅拌均匀后,加入双螺杆挤出机中,经熔融挤后,经过水冷,由切粒机切成长度为1-3mm的粒子,得到抗菌保鲜负离子母粒粒。
实施例5
按重量配比分别称取负离子数为15000的负离子粉50份,有机染料1份,无机色粉10份,铝酸酯偶联剂3份,硅烷偶联剂2份,润滑剂硅酮粉2份,润滑剂聚乙烯蜡1份,硫酸钡10份,放入60℃恒温高速搅拌机中,密闭上盖后,搅拌均匀后关闭高搅机;然后加入HIPS 20份搅拌均匀后,加入双螺杆挤出机中,经熔融挤后,经过水冷,由切粒机切成长度为1-3mm的粒子,得到抗菌保鲜负离子母粒粒。
实施例6
按重量配比分别称取负离子数为13000的负离子粉40份,无机色粉1份,铝酸酯偶联剂1份,硅烷偶联剂2份,润滑剂硅酮粉2份,润滑剂聚乙烯蜡1份,抗氧剂0.3份,光稳剂1份,放入60℃恒温高速搅拌机中,密闭上盖后,搅拌均匀后关闭高搅机;然后加入GPPS 51.7份搅拌均匀后,加入双螺杆挤出机中,经熔融挤后,经过水冷,由切粒机切成长度为1-3mm的粒子,得到抗菌保鲜负离子母粒粒。
实施例7
按重量配比分别称取负离子数为18000的负离子粉35份,有机染料5份,铝酸酯偶联剂2份,润滑剂硅酮粉2份,,抗氧剂0.5份,光稳剂1份,放入60℃恒温高速搅拌机中,密闭上盖后,搅拌均匀后关闭高搅机;然后加入聚丙烯54.5份搅拌均匀后,加入双螺杆挤出机中,经熔融挤后,经过水冷,由切粒机切成长度为1-3mm的粒子,得到抗菌保鲜负离子母粒粒。
实施例8
按重量配比分别称取负离子数为28000的负离子粉5份,有机染料5份,铝酸酯偶联剂2份,润滑剂硅酮粉2份,放入60℃恒温高速搅拌机中,密闭上盖后,搅拌均匀后关闭高搅机;然后加入聚丙烯86份搅拌均匀后,加入双螺杆挤出机中,经熔融挤后,经过水冷,由切粒机切成长度为1-3mm的粒子,得到抗菌保鲜负离子母粒粒。
将上述实施例1-8中的样品分别按照表1的配比制成样片,分别测试负离子数和大肠杆菌数量。
从表中的数据可以,该抗菌保鲜负离子母粒与不同树脂基体进行复配制成标准样片,均能够释放一定量的负离子。这样可以根据不同制件的应用要求,制备不同负离子数的产品,从而满足不同制件对负离子含量的要求。同时从标准样片抗菌率的指标来看,所有样品的抗菌率均大于90%,表明上述样品均具有抗菌性。由于上述样品均能释放负离子,用这些材料制备成的制品,即可不间断的自动释放负离子,这些负离子将会中和空气中悬浮的阳离子,从而保持所在空间空气的清新。上述材料释放的负离子均大于1000个/cm3,所以上述材料均具有很好的保鲜性能。
以上显示和描述了本发明的基本原理和主要特征。本行业的技术人员应该了解,本发明不受上述实施例的限制,上述实施例和说明书中描述的只是说明本发明的原理,在不脱离本发明精神和范围的前提下,本发明还会有各种变化和改进,这些变化和改进都落入要求保护的本发明范围内。本发明的要求保护范围由所附的权利要求书及其等效物界定。
Claims (8)
1.一种具有抗菌保鲜的负离子母粒及其制备方法,其特征在于:所述母粒粒是由下列组份按重量份制备而成:
树脂:10-90份
负离子粉:0.1-50份
色粉:0-40份
偶联剂:0.01-5份
润滑剂:0.01-15份
其他助剂:0-60。
2.根据权利要求1所述的一种具有抗菌保鲜的负离子母粒,其特征在于:所述母粒粒制备方法是,首先将负离子粉、分散剂、偶联剂、润滑剂和其他助剂加入到一定温度的高速混合机中搅拌均匀,接着加入树脂继续混合,然后将搅拌均匀的混合物经挤出机熔融挤出,最后经切粒机进行造粒制备母粒粒。
3.根据权利要求1所述的一种具有抗菌保鲜的负离子母粒,其特征在于:所述的树脂为热塑性树脂,其中包括:聚丙烯、聚乙烯、丙烯氰-丁二烯-苯乙烯共聚物(ABS)、聚苯乙烯(GPPS)、高抗冲聚苯乙烯(HIPS)、乙烯-乙酸乙烯脂共聚物(EVA)中一种或几种。
4.根据权利要求1所述的一种具有抗菌保鲜的负离子母粒,其特征在于:所述的负离子粉的负离子数大于10000个/cm3。
5.根据权利要求1所述的一种具有抗菌保鲜的负离子母粒,其特征在于:所述色粉包括无机颜料、有机颜料和染料中的一种或几种。
6.根据权利要求1所述的一种具有抗菌保鲜的负离子母粒,其特征在于:所述润滑剂为白油、乙撑双硬脂酰胺(EBS)、硬脂酸钙、硅酮粉、聚乙烯蜡中的至少一种。
7.根据权利要求1所述的一种具有抗菌保鲜的负离子母粒,其特征在于:所述偶联剂为硅烷类、铝酸酯类和钛酸酯类中至少一种。
8.根据权利要求1所述的一种具有抗菌保鲜的负离子母粒,其特征在于:所述的其他助剂包括碳酸钙、硫酸钡、抗氧剂、光稳剂。
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