CN112721361A - 一种聚酰亚胺纤维可重复医用防护服材料及其制备方法 - Google Patents
一种聚酰亚胺纤维可重复医用防护服材料及其制备方法 Download PDFInfo
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Abstract
本发明属于生物医学工程领域,是一种医用多功能防护服材料及其制备方法。它包括依次排布的防护层、隔离层和保护层,所述防护层的下表面与隔离层的上表面相连接、隔离层的下表面与保护层的上表面相连接,三层材料复合成为一体,其中防护层为聚酰亚胺纤维面料,隔离层为多功能纳米微孔薄膜材料,保护层为聚酰亚胺纤维混纺织物。本发明利用聚酰亚胺纤维的耐水解、耐高温、阻燃、耐酸碱、耐辐射、耐氧化、抗菌性、亲肤性以及良好加工的性能,透气透湿性能好,耐高温高压,可清洗消毒后重复使用,解决了一次性防护服透气透湿性能差和不能重复使用的难题。
Description
技术领域
本发明属于生物医学工程领域,涉及到一种新型医用多功能防护服材料及其制备方法。
背景技术
生物医用防护服不仅要让医护人员免受诊疗过程中病毒、细菌等各种污染物的感染,抵挡住水液、酒精、油渍侵入,而且要有效抗静电,甚至防止灰尘进入,还要排湿透气、穿着自如。但目前医用防护服虽然防护效果较好,但透气透湿性能很差,医护人员穿着起来显得很厚重,而且很闷热,严重影响了医护人员的工作效率。
现有医用防护服多以涤纶、粘胶等纤维为原料,以普通无纺布、橡胶或涂层面料、闪蒸发一次成型滤材制作的防护服,属“用即弃”的一次性使用型。但由于是一次性使用,防护服本身价格比较高,增加了医疗成本,一次性使用还带来环保问题。同时特别是在大疫情面前,会因防护服的短缺导致医疗救治的无法进行。一时间,医用防护服的短缺成为制约临床抢救的难题。因此,如果防护服能够重复使用,就可以很好的解决此类问题。
发明内容
本发明所要解决的技术问题是针对目前医用防护服透气透湿性能差、不能重复使用等缺点,提供一种透气透湿性能好、可重复使用的聚酰亚胺纤维医用防护服材料。
本发明所要解决的技术问题是通过以下的技术方案来实现的。本发明是一种聚酰亚胺纤维可重复医用防护服材料,其特点是:该可重复医用防护服材料包括三层,分别为防护层、隔离层和保护层,其中防护层为聚酰亚胺纤维面料,隔离层为多功能纳米微孔薄膜材料,保护层为聚酰亚胺纤维混纺织物,所述防护层的下表面与隔离层的上表面相连接、隔离层的下表面与保护层的上表面相连接,三层材料复合成为一体。
本发明优选的技术方案是:
1、所述的防护层为超疏水抗静电聚酰亚胺机织面料,单位面积质量为:50 g/m2~150g/m2,进一步优选70 g/m2~120g/m2,聚酰亚胺纤维占超疏水抗静电聚酰亚胺机织面料总质量的比例大于或等于40%;所述的多功能纳米微孔薄膜材料是PTFE膜、防水透气PU膜,防水透气PE膜中的一种,孔径大小在500~1500纳米,厚度为0.01~0.03mm,孔隙率>70%。
2、所述聚酰亚胺纤维混纺织物为聚酰亚胺纤维与纤维素纤维或蛋白质纤维混纺制成的机织或针织单面薄型织物或网眼织物;其中聚酰亚胺纤维占聚酰亚胺纤维混纺织物总质量的比例大于或等于30%。
3、所述超疏水抗静电聚酰亚胺机织面料中嵌织多条导电纤维,导电纤维选自不锈钢纤维、铜纤维、铝纤维、碳纤维、有机导电纤维中的一种或两种以上的组合。
4、所述的聚酰亚胺纤维可重复医用防护服材料厚度为0.4mm~0.8mm,单位面积质量为140g/m2~240g/m2。
本发明要解决的技术问题还可以通过以下技术方案来进一步实现,本发明还公开了聚酰亚胺医用防护服材料的制备方法,其步骤如下:
(1)防护层加工
将聚酰亚胺纤维或再加入异形截面纤维,再生纤维素纤维,按一定的重量比纺成聚酰亚胺纱线,将聚酰亚胺纱线作为经纱和纬纱,导电纤维按导电纤维之间的距离为0.3cm ~3cm,占织物纤维总质量的3%~8%比例嵌织,编织成聚酰亚胺机织平纹面料,面料织物总紧度不低于90%;
聚酰亚胺机织面料进行超疏水整理,整理是采用浸渍-烘干-焙烘的方式,采用一浸一轧的方式,浸轧水性无氟超疏水整理剂,烘干温度为60℃~80℃,焙烘时间为3~10分钟,焙烘温度为120℃~190℃;
(2)保护层加工
聚酰亚胺纤维混纺织物为聚酰亚胺纤维与纤维素纤维或蛋白质纤维混纺制成的机织或针织单面薄型织物或网眼织物,纤维素纤维选自棉纤维、粘胶纤维、天丝纤维或莫代尔纤维的一种或多种;蛋白质纤维选自蚕丝、绢丝、大豆纤维的一种或多种;
(3)三层复合加工
将聚酰亚胺纤维面料、多功能纳米微孔薄膜材料通过溶剂型粘合剂直接贴合或采用热熔胶膜为黏合剂进行层压复合或采用热熔胶进行热压复合,从而得到复合布料;再将复合布料与聚酰亚胺纤维混纺织物通过溶剂型粘合剂直接贴合或采用热熔胶膜为黏合剂进行层压复合或采用热熔胶进行热压复合,从而得到聚酰亚胺纤维可重复医用防护服材料。
与现有技术相比,本发明的有益效果如下:
(1)本发明的一种聚酰亚胺纤维可重复医用防护服材料是一款可重复使用的医用防护服材料,有效缓解一次性防护服材料“用即弃”对环境造成巨大压力。
(2)本发明的无氟超疏水整理技术防止血液等体液污染物对防护服的玷污,并具有优异高效的拒水性和良好的耐久性,手感好,穿着舒适,不影响透气性。
(3)本发明的隔离层采用多功能纳米微孔薄膜材料,比常规涂层制品的耐水压高,透湿性更好,同时可阻隔各种微小病毒。
(4)本发明选用聚酰亚胺纤维,制备的聚酰亚胺医用防护服材料不仅具有防静电、阻燃、耐高温和耐水解等功能,还具有抗菌、亲肤、透气、手感柔软穿着舒适。
具体实施方式
以下进一步描述本发明的具体技术方案,以便于本领域的技术人员进一步地理解本发明,而不构成对其权利的限制。
实施例1,一种聚酰亚胺纤维可重复医用防护服材料及其制备方法,
聚酰亚胺纤维可重复医用防护服材料包括三层,分别为防护层、隔离层和保护层,其中防护层为聚酰亚胺纤维面料,隔离层为多功能纳米微孔薄膜材料,保护层为聚酰亚胺纤维混纺织物,所述防护层的下表面与隔离层的上表面相连接、隔离层的下表面与保护层的上表面相连接,三层材料复合成为一体。
其中防护层为超疏水抗静电聚酰亚胺机织面料,单位面积质量为120g/m2,聚酰亚胺纤维占织物纤维重量的55%;多功能纳米微孔薄膜材料是PTFE膜、孔径大小为1200纳米,厚度为0.02mm,孔隙率80%;所述聚酰亚胺纤维混纺织物为聚酰亚胺纤维与纤维素纤维或蛋白质纤维混纺制成的机织或针织单面薄型织物或网眼织物;其中聚酰亚胺纤维占聚酰亚胺纤维混纺织物总质量的比例为30%。聚酰亚胺纤维可重复医用防护服材料厚度为0.5mm,单位面积质量为200g/m2。
聚酰亚胺纤维可重复医用防护服材料的制备方法步骤如下:
(1)防护层加工
将聚酰亚胺纤维或再加入异形截面纤维,再生纤维素纤维,按一定的重量比纺成聚酰亚胺纱线,将聚酰亚胺纱线作为经纱和纬纱,采用有机导电纤维;导电纤维之间的距离为2cm;占织物纤维总质量的5%比例嵌织,编织成聚酰亚胺机织平纹面料,面料织物总紧度98%;
聚酰亚胺机织面料进行超疏水整理,整理是采用浸渍-烘干-焙烘的方式,采用一浸一轧的方式,浸轧水性无氟超疏水整理剂,烘干温度为70℃,焙烘时间为6分钟,焙烘温度为150℃;
(2)保护层加工
聚酰亚胺纤维混纺织物为聚酰亚胺纤维与纤维素纤维或蛋白质纤维混纺制成的机织或针织单面薄型织物或网眼织物,纤维素纤维选自棉纤维、粘胶纤维、天丝纤维或莫代尔纤维的一种或多种;蛋白质纤维选自蚕丝、绢丝、大豆纤维的一种或多种;
(3)三层复合加工
将聚酰亚胺纤维面料、多功能纳米微孔薄膜材料通过溶剂型粘合剂直接贴合或采用热熔胶膜为黏合剂进行层压复合或采用热熔胶进行热压复合,从而得到复合布料;将复合布料与聚酰亚胺纤维混纺织物通过溶剂型粘合剂直接贴合或采用热熔胶膜为黏合剂进行层压复合或采用热熔胶进行热压复合,从而得到聚酰亚胺纤维可重复医用防护服材料。
实施例2,一种聚酰亚胺纤维可重复医用防护服材料及其制备方法,
聚酰亚胺纤维可重复医用防护服材料包括三层,分别为防护层、隔离层和保护层,其中防护层为聚酰亚胺纤维面料,隔离层为多功能纳米微孔薄膜材料,保护层为聚酰亚胺纤维混纺织物,所述防护层的下表面与隔离层的上表面相连接、隔离层的下表面与保护层的上表面相连接,三层材料复合成为一体。
其中防护层为超疏水抗静电聚酰亚胺机织面料,单位面积质量为100g/m2,聚酰亚胺纤维占织物纤维重量的40%;多功能纳米微孔薄膜材料是防水透气PU膜、孔径大小为1000纳米,厚度为0.01mm,孔隙率90%;所述聚酰亚胺纤维混纺织物为聚酰亚胺纤维与纤维素纤维或蛋白质纤维混纺制成的机织或针织单面薄型织物或网眼织物;其中聚酰亚胺纤维占聚酰亚胺纤维混纺织物总质量的比例为40%。聚酰亚胺纤维可重复医用防护服材料为0.4mm,单位面积质量为180g/m2。
聚酰亚胺纤维可重复医用防护服材料的制备方法步骤如下:
(1)防护层加工
将聚酰亚胺纤维或再加入异形截面纤维,再生纤维素纤维,按一定的重量比纺成聚酰亚胺纱线,将聚酰亚胺纱线作为经纱和纬纱,采用有机导电纤维;导电纤维之间的距离为3cm;占织物纤维总质量的4%比例嵌织,编织成聚酰亚胺机织平纹面料,面料织物总紧度95%;
聚酰亚胺机织面料进行超疏水整理,整理是采用浸渍-烘干-焙烘的方式,采用一浸一轧的方式,浸轧水性无氟超疏水整理剂,烘干温度为75℃,焙烘时间为5分钟,焙烘温度为170℃;
(2)保护层加工
聚酰亚胺纤维混纺织物为聚酰亚胺纤维与纤维素纤维或蛋白质纤维混纺制成的机织或针织单面薄型织物或网眼织物,纤维素纤维选自棉纤维、粘胶纤维、天丝纤维或莫代尔纤维的一种或多种;蛋白质纤维选自蚕丝、绢丝、大豆纤维的一种或多种;
(3)三层复合加工
将聚酰亚胺面料、多功能纳米微孔薄膜材料通过溶剂型粘合剂直接贴合或采用热熔胶膜为黏合剂进行层压复合或采用热熔胶进行热压复合,从而得到复合布料;将复合布料与聚酰亚胺纤维混纺织物通过溶剂型粘合剂直接贴合或采用热熔胶膜为黏合剂进行层压复合或采用热熔胶进行热压复合,从而得到聚酰亚胺纤维可重复医用防护服材料。
实施例3,一种聚酰亚胺纤维可重复医用防护服材料及其制备方法,
聚酰亚胺纤维可重复医用防护服材料包括三层,分别为防护层、隔离层和保护层,其中防护层为聚酰亚胺纤维面料,隔离层为多功能纳米微孔薄膜材料,保护层为聚酰亚胺纤维混纺织物,所述防护层的下表面与隔离层的上表面相连接、隔离层的下表面与保护层的上表面相连接,三层材料复合成为一体。
其中防护层为超疏水抗静电聚酰亚胺机织面料,单位面积质量为80g/m2,聚酰亚胺纤维占织物纤维重量的60%;多功能纳米微孔薄膜材料是防水透气PE膜、孔径大小为1500纳米,厚度为0.03mm,孔隙率85%;所述聚酰亚胺纤维混纺织物为聚酰亚胺纤维与纤维素纤维或蛋白质纤维混纺制成的机织或针织单面薄型织物或网眼织物;其中聚酰亚胺纤维占聚酰亚胺纤维混纺织物总质量的比例为35%。聚酰亚胺纤维可重复医用防护服材料厚度为0.6mm,单位面积质量为170g/m2。
聚酰亚胺纤维可重复医用防护服材料的制备方法步骤如下:
(1)防护层加工
将聚酰亚胺纤维或再加入异形截面纤维,再生纤维素纤维,按一定的重量比纺成聚酰亚胺纱线,将聚酰亚胺纱线作为经纱和纬纱,采用有机导电纤维;导电纤维之间的距离为1cm;占织物纤维总质量的7%比例嵌织,编织成聚酰亚胺机织平纹面料,面料织物总紧度90%;
聚酰亚胺机织面料进行超疏水整理,整理是采用浸渍-烘干-焙烘的方式,采用一浸一轧的方式,浸轧水性无氟超疏水整理剂,烘干温度为80℃,焙烘时间为8分钟,焙烘温度为185℃;
(2)保护层加工
聚酰亚胺纤维混纺织物为聚酰亚胺纤维与纤维素纤维或蛋白质纤维混纺制成的机织或针织单面薄型织物或网眼织物,纤维素纤维选自棉纤维、粘胶纤维、天丝纤维或莫代尔纤维的一种或多种;蛋白质纤维选自蚕丝、绢丝、大豆纤维的一种或多种;
(3)三层复合加工
将聚酰亚胺面料、多功能纳米微孔薄膜材料通过溶剂型粘合剂直接贴合或采用热熔胶膜为黏合剂进行层压复合或采用热熔胶进行热压复合,从而得到复合布料;将复合布料与聚酰亚胺纤维混纺织物通过溶剂型粘合剂直接贴合或采用热熔胶膜为黏合剂进行层压复合或采用热熔胶进行热压复合,从而得到聚酰亚胺纤维可重复医用防护服材料。
本实施例制得的聚酰亚胺纤维可重复医用防护服材料,相关性能指标如下表:
本发明聚酰亚胺纤维可重复医用防护服材料制成防护服后使用后,在重复使用前可以进行清洗,清洗是先采用25℃~40℃水清选20~40分钟,清洗时可以加入中性清洗剂,清洗后进行灭菌消毒,灭菌在温度121℃、压强是0.1MPa下灭菌30分钟左右,或者在135℃、压强是0.25Mpa 下灭菌6分钟左右。灭菌消毒进行检测,达到防护服标准即可再次使用。
以上各实施例仅用以说明本发明的技术方案,而非对其限制;尽管参照前述各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,或者对其中部分或者全部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范围,这些改进和变形也应视为本发明的保护范围。
Claims (10)
1.一种聚酰亚胺纤维可重复医用防护服材料,其特征在于,该聚酰亚胺纤维医用防护服材料包括三层,分别为防护层、隔离层和保护层,其中防护层为聚酰亚胺纤维面料,隔离层为多功能纳米微孔薄膜材料,保护层为聚酰亚胺纤维混纺织物,所述防护层的下表面与隔离层的上表面相连接、隔离层的下表面与保护层的上表面相连接,三层材料复合成为一体。
2.根据权利要求1所述的聚酰亚胺纤维可重复医用防护服材料,其特征在于:所述的聚酰亚胺纤维面料为超疏水抗静电聚酰亚胺机织面料。
3.根据权利要求2所述的聚酰亚胺纤维可重复医用防护服材料,其特征在于,所述超疏水抗静电聚酰亚胺机织面料单位面积质量为:50 g/m2~150g/m2,优选70 g/m2~120g/m2,聚酰亚胺纤维占超疏水抗静电聚酰亚胺机织面料总质量的比例不小于40%。
4.根据权利要求2所述的聚酰亚胺纤维可重复医用防护服材料,其特征在于,所述超疏水抗静电聚酰亚胺机织面料中嵌织多条导电纤维,导电纤维选自不锈钢纤维、铜纤维、铝纤维、碳纤维、有机导电纤维中的一种或两种以上的组合。
5.根据权利要求1所述的聚酰亚胺纤维可重复医用防护服材料,其特征在于,所述多功能纳米微孔薄膜材料是PTFE膜、防水透气PU膜,防水透气PE膜中的一种。
6.根据权利要求1所述的聚酰亚胺纤维可重复医用防护服材料,其特征在于,所述多功能纳米微孔薄膜材料孔径为500~1500纳米,厚度为0.01~0.03mm,孔隙率>70%。
7.根据权利要求1所述的聚酰亚胺纤维可重复医用防护服材料,其特征在于,所述聚酰亚胺纤维混纺织物为聚酰亚胺纤维与纤维素纤维或蛋白质纤维混纺制成的机织或针织单面薄型织物或网眼织物。
8.根据权利要求1所述的聚酰亚胺纤维可重复医用防护服材料,其特征在于:所述聚酰亚胺纤维占聚酰亚胺纤维混纺织物总质量的比例不小于30%。
9.根据权利要求1所述的聚酰亚胺纤维可重复医用防护服材料,其特征在于,所述的聚酰亚胺纤维可重复医用防护服材料厚度为0.4mm~0.8mm,单位面积质量为140g/m2~240g/m2。
10.一种如权利要求1-9中任意一项所述的聚酰亚胺纤维可重复医用防护服材料的制备方法,其步骤如下:
(1)防护层加工
将聚酰亚胺纤维或再加入异形截面纤维,再生纤维素纤维,纺成聚酰亚胺纱线,将聚酰亚胺纱线作为经纱和纬纱,导电纤维按导电纤维之间的距离为0.3 cm ~3cm,占织物纤维总质量的3%~8%比例嵌织,编织成聚酰亚胺机织平纹面料,面料织物总紧度不低于90%;
聚酰亚胺机织面料进行超疏水整理,整理采用浸渍、烘干、焙烘的方式,采用一浸一轧的方式,浸轧水性无氟超疏水整理剂,烘干温度为60℃~80℃,焙烘时间为3~10分钟,焙烘温度为120℃~190℃;
(2)保护层加工
聚酰亚胺纤维混纺织物是聚酰亚胺纤维与纤维素纤维或蛋白质纤维混纺制成的机织或针织单面薄型织物或网眼织物,纤维素纤维选自棉纤维、粘胶纤维、天丝纤维或莫代尔纤维的一种或多种;蛋白质纤维选自蚕丝、绢丝、大豆纤维的一种或多种;
(3)三层复合加工
将聚酰亚胺纤维面料、多功能纳米微孔薄膜材料通过溶剂型粘合剂直接贴合或采用热熔胶膜为黏合剂进行层压复合或采用热熔胶进行热压复合,从而得到复合布料;再将复合布料与聚酰亚胺纤维混纺织物通过溶剂型粘合剂直接贴合或采用热熔胶膜为黏合剂进行层压复合或采用热熔胶进行热压复合,从而得到聚酰亚胺纤维可重复医用防护服材料。
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