CN115197544A - 医用卫生抗菌防紫外功能填充母粒及其用途 - Google Patents
医用卫生抗菌防紫外功能填充母粒及其用途 Download PDFInfo
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Abstract
本发明公开了一种医用卫生抗菌防紫外填充母粒,该填充母粒由塑料基材和平均粒径≤20nm的纳米功能粉体混合,再添加助剂造粒而制成,纳米功能粉体的添加量为填充母粒的5‑20wt%,助剂添加量为填充母粒的0.3‑0.6wt%,其中:纳米功能粉体为抗菌防病毒纳米粉体和抗紫外纳米粉体,抗菌防病毒纳米粉体为载有铜、锌的石墨烯、活性炭或沸石纳米粉体,抗紫外纳米粉体选自氧化铈纳米粉体、二氧化钛纳米粉体和氧化锌纳米粉体。本发明填充母粒具备抗菌、防病毒、抗紫外等功能,在医药卫生包装材料、医用辅料、卫生防护材料等领域有重要应用价值。
Description
技术领域
本发明涉及一种医用卫生抗菌防紫外功能填充母粒,此外,本发明还涉及该填充母粒的用途。
背景技术
一般母粒的功能性往往比较单一,在单一的领域能够发挥很好的作用,例如,抗紫外母粒(中国专利CN107418159A)以制备BOPET紫外屏蔽膜,隔热母粒用于BOPET窗膜(中国专利CN108530843A),抗菌聚酯母粒用以高温纺丝成纤维(中国专利CN109280345A)等等。而在复合功能性方面,尚有着进一步开发和探索的广阔领域,且对于提升材料功能和使用价值有着重要意义。
由于无机纳米粒子性能稳定,具备很好的耐候性和耐加工性,一直是功能母粒常用的材料。而载体的应用可有助于保持材料的长期稳定性和分散性,减小外界如水、氧气等因素对于功能物质的干扰,提高材料实际的应用价值。另一方面,通过几种纳米粒子的复合,可实现协同的多种功能,有利于应对各种不同的实际使用场景。在医用卫生领域,相较于现有技术的单一功能材料,抗菌、防病毒、抗紫外等复合功能在医用卫生包装材料、医用辅料中的应用,是新型的技术应用。这在医用包装、医用辅料、卫生防护材料等领域有着数以十万亿的产业规模,具备十分广阔的市场空间和发展前景。
发明内容
针对现有技术的上述不足,根据本发明的实施例,希望提供一种具有抗菌、防病毒、抗紫外等复合功能的医用卫生填充母粒,并提出其在医用包装材料、医用辅料和卫生防护材料中的用途。
根据实施例,本发明提供的一种医用卫生抗菌防紫外填充母粒,该填充母粒由塑料基材和平均粒径≤20nm的纳米功能粉体混合,再添加助剂造粒而制成,纳米功能粉体的添加量为填充母粒的5-20wt%,助剂添加量为填充母粒的0.3-0.6wt%,其中:
塑料基材选自聚乙烯、聚丙烯、聚氯乙烯、聚甲基丙烯酸甲酯、聚对苯二甲酸乙二酯、聚对苯二甲酸丁二酯、聚丁二酸丁二醇酯、聚苯乙烯、聚碳酸酯、聚乳酸和聚己内酯;
纳米功能粉体为抗菌防病毒纳米粉体和抗紫外纳米粉体,抗菌防病毒纳米粉体的添加量为填充母粒的3-12w%,抗紫外纳米粉体的添加量为填充母粒的2-8wt%;抗菌防病毒纳米粉体为载有铜、锌的石墨烯、活性炭或沸石纳米粉体,抗紫外纳米粉体选自氧化铈纳米粉体、二氧化钛纳米粉体和氧化锌纳米粉体;
助剂为分散剂、抗氧化剂和偶联剂,分散剂的添加量为填充母粒的0.1-0.2wt%,抗氧化剂的添加量为填充母粒的0.1-0.2wt%,偶联剂的添加量为填充母粒的0.1-0.2wt%;分散剂选自羟乙基乙撑双硬脂酰胺、乙二醇聚氧乙烯醚和油酸酰胺;抗氧化剂选自四-(二丁基羟基氢化肉桂酸)季戊四醇酯、硫代二丙酸双十八醇酯、硫代二丙酸双十二醇酯、季戊四醇二亚磷酸双十八酯和三(2,4-二叔丁基苯基)亚磷酸酯;偶联剂选自钛酸酯偶联剂和铝酸酯偶联剂。
根据一个实施例,本发明前述医用卫生抗菌防紫外填充母粒中,抗菌防病毒纳米粉体的制备过程包括如下步骤:
(1)动态过程。将1质量份载体粉体投入到含有20-30质量份的水和乙醇(水与乙醇的体积比为1:2)的容器中,超声1-5h后,将0.5-0.7质量份的还原剂和0.3-0.5质量份的分散剂加入到该容器中。将混合液放入含有锆球的高速旋转的分散桶中滚动球磨3-5天,得到粉体分散液。
(2)静态过程。将0.1-0.3质量份的醋酸铜和0.4-0.6质量份的醋酸锌溶于水和乙醇的混合液体(水与乙醇的体积比为1:2)。调节pH为4-6。在50-60℃,搅拌和超声下,将溶液在30-120min内加入至前述分散液后,继续维持4-8h。
(3)离心分离,乙醇重复清洗3次,并在40-60℃下隔氧干燥24-48h,得到平均粒径≤20nm的抗菌防病毒纳米粉体。
步骤(1)中,所述分散剂选自聚乙二醇,聚丙烯酸钠,纤维素磺酸钠;还原剂选自硼氢化钠和硫代硫酸钠。
根据一个实施例,本发明前述医用卫生抗菌防紫外填充母粒中,抗紫外纳米粉体的制备过程包括如下步骤:
(1)将抗紫外粉体材料投入到含有水和乙醇(水与乙醇的体积比为1:2)的容器中,超声 1-5h后,放入含有锆球的高速旋转的分散桶中滚动球磨3-5天,得到粉体分散液。
(2)该粉体分散液离心处理,用乙醇和水分别清洗2次,冷冻干燥24-48h,得到平均粒径≤20nm的抗紫外纳米粉体。
本发明前述医用卫生抗菌防紫外填充母粒的制备过程并无特别之处。将平均粒径≤ 20nm的抗菌防病毒纳米粉体、平均粒径≤20nm的抗紫外纳米粉体与基材及助剂共混,造粒,制得医用卫生抗菌防紫外功能填充母粒,可在医用包装材料、医用敷料等医用卫生领域广泛应用。
相比现有技术,随后的实施例和试验例将证明,本发明医用卫生抗菌防紫外功能填充母粒具有以下优点:母粒功能复合协同,性能突出,具备抗菌、防病毒、抗紫外等综合功能;制备过程简便,绿色环保,适应工业化生产,具有成本优势;在医用包装、医用辅料、医用辅料、卫生防护材料等领域可具备重要的应用价值。
具体实施方式
下面结合具体实施例,进一步阐述本发明。这些实施例应理解为仅用于说明本发明而不用于限制本发明的保护范围。在阅读了本发明记载的内容之后,本领域技术人员可以对本发明作各种改动或修改,这些等效变化和修改同样落入本发明权利要求所限定的范围。
本发明以下实施例中所使用的原料如无特别标示均为市售产品。
实施例1
抗菌防病毒纳米粉体通过以下过程制备:
(1)将100g活性炭粉体投入到含有2kg水和乙醇(水与乙醇的体积比为1:2)的容器中,超声2h后,将50g硼氢化钠,5g聚乙二醇,20g聚丙烯酸钠,加入到该容器中。将混合液放入含有锆球的高速旋转的分散桶中滚动球磨3天,得到平均粒径≤20nm的粉体分散液。
(2)将30g醋酸铜和60g醋酸锌溶于600ml水和乙醇的混合液体(水与乙醇的体积比为 1:2)。调节pH为4。在55℃,搅拌和超声下,将溶液在80min内加入至前述分散液后,继续维持6h。
(3)离心分离,乙醇重复清洗3次,并在40℃下隔氧干燥48h,得到平均粒径≤20nm的抗菌防病毒纳米粉体。
抗紫外纳米粉体制备过程如下:
(1)将30g氧化铈粉体,20g二氧化钛粉体,20g氧化锌粉体投入到含有水和乙醇(水与乙醇的体积比为1:2)的容器中,超声3h后,放入含有锆球的高速旋转的分散桶中滚动球磨3天,得到粉体分散液。
(2)该粉体分散液离心处理,用乙醇和水分别清洗2次,冷冻干燥48h,得到平均粒径≤20nm的抗紫外纳米粉体。
将100g抗菌防病毒纳米粉体,60g抗紫外纳米粉体,640g聚对苯二甲醇乙二酯塑料切片,0.5g硫代二丙酸双十二醇酯,0.7g季戊四醇二亚磷酸双十八酯,0.3g三(2,4-二叔丁基苯基)亚磷酸酯,0.8g铝酸酯偶联剂,1g羟乙基乙撑双硬脂酰胺。在充分搅拌的情况下,加入到塑料造粒机中,制得医用卫生抗菌防紫外功能填充母粒。
实施例2
抗菌防病毒纳米粉体通过以下过程制备:
(1)将100g沸石粉体投入到含有2.5kg水和乙醇(水与乙醇的体积比为1:2)的容器中,超声3h后,将60g硼氢化钠,10g聚乙二醇,30g聚丙烯酸钠,加入到该容器中。将混合液放入含有锆球的高速旋转的分散桶中滚动球磨4天,得到平均粒径≤20nm的粉体分散液。
(2)将15g醋酸铜和60g醋酸锌溶于500ml水和乙醇的混合液体(水与乙醇的体积比为 1:2)。调节pH为5.5。在50℃,搅拌和超声下,将溶液在90min内加入至前述分散液后,继续维持5h。
(3)离心分离,乙醇重复清洗3次,并在60℃下隔氧干燥24h,得到平均粒径≤20nm的抗菌防病毒纳米粉体。
抗紫外纳米粉体制备过程如下:
(1)将30g氧化铈粉体,30g二氧化钛粉体,25g氧化锌粉体投入到含有水和乙醇(水与乙醇的体积比为1:2)的容器中,超声3h后,放入含有锆球的高速旋转的分散桶中滚动球磨3天,得到粉体分散液。
(2)该粉体分散液离心处理,用乙醇和水分别清洗2次,冷冻干燥48h,得到平均粒径≤20nm的抗紫外纳米粉体。
将100g抗菌防病毒纳米粉体,70g抗紫外纳米粉体,680g聚丙烯塑料切片,0.8g四-(二丁基羟基氢化肉桂酸)季戊四醇酯,0.6g季戊四醇二亚磷酸双十八酯,1g铝酸酯偶联剂,1.2g油酸酰胺。在充分搅拌的情况下,加入到塑料造粒机中,制得医用卫生抗菌防紫外功能填充母粒。
实施例3
抗菌防病毒纳米粉体通过以下过程制备:
(1)将100g石墨烯粉体投入到含有2kg水和乙醇(水与乙醇的体积比为1:2)的容器中,超声2h后,将50g硫代硫酸钠和30g纤维素磺酸钠加入到该容器中。将混合液放入含有锆球的高速旋转的分散桶中滚动球磨3天,得到平均粒径≤20nm的粉体分散液。
(2)将20g醋酸铜和50g醋酸锌溶于500ml水和乙醇的混合液体(水与乙醇的体积比为 1:2)。调节pH为4。在50℃,搅拌和超声下,将溶液在50min内加入至前述分散液后,继续维持5h。
(3)离心分离,乙醇重复清洗3次,并在40℃下隔氧干燥48h,得到平均粒径≤20nm的抗菌防病毒纳米粉体。
抗紫外纳米粉体制备过程如下:
(1)将30g氧化铈粉体,20g二氧化钛粉体,20g氧化锌粉体投入到含有水和乙醇(水与乙醇的体积比为1:2)的容器中,超声3h后,放入含有锆球的高速旋转的分散桶中滚动球磨3天,得到粉体分散液。
(2)该粉体分散液离心处理,用乙醇和水分别清洗2次,冷冻干燥48h,得到平均粒径≤20nm的抗紫外纳米粉体。
将100g抗菌防病毒纳米粉体,60g抗紫外纳米粉体,640g聚氯乙烯塑料切片,0.8g硫代二丙酸双十八醇酯,0.8g三(2,4-二叔丁基苯基)亚磷酸酯,0.9g钛酸酯偶联剂,1.2g乙二醇聚氧乙烯醚,在充分搅拌的情况下,加入到塑料造粒机中,制得医用卫生抗菌防紫外功能填充母粒。
实施例4
抗菌防病毒纳米粉体通过以下过程制备:
(1)将100g活性炭粉体投入到含有2.5kg水和乙醇(水与乙醇的体积比为1:2)的容器中,超声4h后,将50g硼氢化钠,40g纤维素磺酸钠,加入到该容器中。将混合液放入含有锆球的高速旋转的分散桶中滚动球磨5天,得到平均粒径≤20nm的粉体分散液。
(2)将10g醋酸铜和50g醋酸锌溶于500ml水和乙醇的混合液体(水与乙醇的体积比为 1:2)。调节pH为6。在55℃,搅拌和超声下,将溶液在60min内加入至前述分散液后,继续维持4h。
(3)离心分离,乙醇重复清洗3次,并在40℃下隔氧干燥48h,得到平均粒径≤20nm的抗菌防病毒纳米粉体。
抗紫外纳米粉体制备过程如下:
(1)将20g氧化铈粉体,40g二氧化钛粉体,10g氧化锌粉体投入到含有水和乙醇(水与乙醇的体积比为1:2)的容器中,超声4h后,放入含有锆球的高速旋转的分散桶中滚动球磨4天,得到粉体分散液。
(2)该粉体分散液离心处理,用乙醇和水分别清洗2次,冷冻干燥48h,得到平均粒径≤20nm的抗紫外纳米粉体。
将100g抗菌防病毒纳米粉体,60g抗紫外纳米粉体,640g聚乙烯塑料切片,0.7g硫代二丙酸双十二醇酯,0.7g三(2,4-二叔丁基苯基)亚磷酸酯,1.2g钛酸酯偶联剂,1.3g乙二醇聚氧乙烯醚。在充分搅拌的情况下,加入到塑料造粒机中,制得医用卫生抗菌防紫外功能填充母粒。
实施例5
抗菌防病毒纳米粉体通过以下过程制备:
(1)将100g石墨烯粉体投入到含有2.5kg水和乙醇(水与乙醇的体积比为1:2)的容器中,超声4h后,将60g硼氢化钠,10g聚乙二醇,30g纤维素磺酸钠,加入到该容器中。将混合液放入含有锆球的高速旋转的分散桶中滚动球磨4天,得到平均粒径≤20nm的粉体分散液。
(2)将15g醋酸铜和40g醋酸锌溶于400ml水和乙醇的混合液体(水与乙醇的体积比为 1:2)。调节pH为5。在55℃,搅拌和超声下,将溶液在50min内加入至前述分散液后,继续维持4h。
(3)离心分离,乙醇重复清洗3次,并在50℃下隔氧干燥48h,得到平均粒径≤20nm的抗菌防病毒纳米粉体。
抗紫外纳米粉体制备过程如下:
(1)将40g氧化铈粉体,30g二氧化钛粉体投入到含有水和乙醇(水与乙醇的体积比为 1:2)的容器中,超声4h后,放入含有锆球的高速旋转的分散桶中滚动球磨4天,得到粉体分散液。
(2)该粉体分散液离心处理,用乙醇和水分别清洗2次,冷冻干燥48h,得到平均粒径≤20nm的抗紫外纳米粉体。
将100g抗菌防病毒纳米粉体,60g抗紫外纳米粉体,640g聚氯乙烯塑料切片,0.6g硫代二丙酸双十二醇酯,0.5g季戊四醇二亚磷酸双十八酯,0.5g季戊四醇二亚磷酸双十八酯,1g铝酸酯偶联剂,1.2g羟乙基乙撑双硬脂酰胺。在充分搅拌的情况下,加入到塑料造粒机中,制得医用卫生抗菌防紫外功能填充母粒。
实施例6
抗菌防病毒纳米粉体通过以下过程制备:
(1)将100g沸石粉体投入到含有2kg水和乙醇(水与乙醇的体积比为1:2)的容器中,超声4h后,将60g硫代硫酸钠,20g聚乙二醇,20g聚丙烯酸钠,加入到该容器中。将混合液放入含有锆球的高速旋转的分散桶中滚动球磨4天,得到平均粒径≤20nm的粉体分散液。
(2)将20g醋酸铜和40g醋酸锌溶于500ml水和乙醇的混合液体(水与乙醇的体积比为 1:2)。调节pH为4。在50℃,搅拌和超声下,将溶液在90min内加入至前述分散液后,继续维持5h。
(3)离心分离,乙醇重复清洗3次,并在60℃下隔氧干燥24h,得到平均粒径≤20nm的抗菌防病毒纳米粉体。
抗紫外纳米粉体制备过程如下:
(1)将40g二氧化钛粉体,40g氧化锌粉体投入到含有水和乙醇(水与乙醇的体积比为 1:2)的容器中,超声4h后,放入含有锆球的高速旋转的分散桶中滚动球磨4天,得到粉体分散液。
(2)该粉体分散液离心处理,用乙醇和水分别清洗2次,冷冻干燥48h,得到平均粒径≤20nm的抗紫外纳米粉体。
将100g抗菌防病毒纳米粉体,70g抗紫外纳米粉体,680g聚乳酸塑料切片,0.5g硫代二丙酸双十八醇酯,0.5g季戊四醇二亚磷酸双十八酯,0.5g三(2,4-二叔丁基苯基)亚磷酸酯,1.2g铝酸酯偶联剂,1.3g乙二醇聚氧乙烯醚。在充分搅拌的情况下,加入到塑料造粒机中,制得医用卫生填充母粒。
试验例
以各实施例制备的医用卫生填充母粒,按5%的质量比与对应的基材母粒共混挤出,采用双向拉伸工艺制备得到50μm厚度的薄膜,并对其性能进行检测。抗紫外性能利用紫外分光光度计进行测试。抗菌测试参照抗菌塑料的抗菌性能试验方法QB/T2591-2003进行测试,抗病毒测试参照塑料和其他非多孔表面抗病毒活性的测定ISO21702-2019进行测试。
所得结果如表1所示。可以看到,由各实施例母粒样品所制备的薄膜具备突出的抗菌、防病毒、抗紫外功能。薄膜抗菌效果可达99%以上,抗病毒效果可达95%以上,紫外阻隔率可达99.9%。这些结果充分表明,本发明所制备的医用卫生填充母粒具备很好的抗菌性能和抗病毒性能,同时兼具突出的抗紫外性能。其作为功能性母粒,其制备过程简便且绿色环保,协同性能突出,涉及应用领域十分广泛,在医用包装材料、医用辅料、健康卫生材料等领域均有着重要的实用价值。
表1.各实施例所制样品性能测试结果
Claims (5)
1.一种医用卫生抗菌防紫外填充母粒,其特征在于,该填充母粒由塑料基材和平均粒径≤20nm的纳米功能粉体混合,再添加助剂造粒而制成,纳米功能粉体的添加量为填充母粒的5-20wt%,助剂添加量为填充母粒的0.3-0.6wt%,其中:
塑料基材选自聚乙烯、聚丙烯、聚氯乙烯、聚甲基丙烯酸甲酯、聚对苯二甲酸乙二酯、聚对苯二甲酸丁二酯、聚丁二酸丁二醇酯、聚苯乙烯、聚碳酸酯、聚乳酸和聚己内酯;
纳米功能粉体为抗菌防病毒纳米粉体和抗紫外纳米粉体,抗菌防病毒纳米粉体的添加量为填充母粒的3-12w%,抗紫外纳米粉体的添加量为填充母粒的2-8wt%;抗菌防病毒纳米粉体为载有铜、锌的石墨烯、活性炭或沸石纳米粉体,抗紫外纳米粉体选自氧化铈纳米粉体、二氧化钛纳米粉体和氧化锌纳米粉体;
助剂为分散剂、抗氧化剂和偶联剂,分散剂的添加量为填充母粒的0.1-0.2wt%,抗氧化剂的添加量为填充母粒的0.1-0.2wt%,偶联剂的添加量为填充母粒的0.1-0.2wt%;分散剂选自羟乙基乙撑双硬脂酰胺、乙二醇聚氧乙烯醚和油酸酰胺;抗氧化剂选自四-(二丁基羟基氢化肉桂酸)季戊四醇酯、硫代二丙酸双十八醇酯、硫代二丙酸双十二醇酯、季戊四醇二亚磷酸双十八酯和三(2,4-二叔丁基苯基)亚磷酸酯;偶联剂选自钛酸酯偶联剂和铝酸酯偶联剂。
2.根据权利要求1所述的医用卫生抗菌防紫外填充母粒,其特征在于,抗菌防病毒纳米粉体的制备过程包括如下步骤:
(1)动态过程:将1质量份载体粉体投入到含有20-30质量份的水和乙醇,且水与乙醇的体积比为1:2的容器中,超声1-5h后,将0.5-0.7质量份的还原剂和0.3-0.5质量份的分散剂加入到该容器中;将混合液放入含有锆球的高速旋转的分散桶中滚动球磨3-5天,得到粉体分散液;
(2)静态过程:将0.1-0.3质量份的醋酸铜和0.4-0.6质量份的醋酸锌溶于水和乙醇的混合液体,所述混合液体中水与乙醇的体积比为1:2,调节pH为4-6,在50-60℃,搅拌和超声下,将溶液在30-120min内加入至前述分散液后,继续维持4-8h;
(3)离心分离,乙醇重复清洗3次,并在40-60℃下隔氧干燥24-48h,得到平均粒径≤20nm的抗菌防病毒纳米粉体。
3.根据权利要求2所述的医用卫生抗菌防紫外填充母粒,其特征在于,步骤(1)中,所述分散剂选自聚乙二醇、聚丙烯酸钠和纤维素磺酸钠,所述还原剂选自硼氢化钠和硫代硫酸钠。
4.根据权利要求1所述的医用卫生抗菌防紫外填充母粒,其特征在于,抗紫外纳米粉体的制备过程包括如下步骤:
(1)将抗紫外粉体材料投入到含有水和乙醇,且水与乙醇的体积比为1:2的容器中,超声1-5h后,放入含有锆球的高速旋转的分散桶中滚动球磨3-5天,得到粉体分散液;
(2)该粉体分散液离心处理,用乙醇和水分别清洗2次,冷冻干燥24-48h,得到平均粒径≤20nm的抗紫外纳米粉体。
5.权利要求1-4中任何一项所述的医用卫生填充母粒在医用包装材料、医用辅料和卫生防护材料中的用途。
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