CN114736406A - 一种具有抗菌作用的耐低温手套制备工艺 - Google Patents
一种具有抗菌作用的耐低温手套制备工艺 Download PDFInfo
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Abstract
本发明公开了一种具有抗菌作用的耐低温手套制备工艺,本发明涉及手套制备技术领域,先用旋转毛刷刷洗模具,然后晾干,将天然橡胶、丁腈橡胶、乳化液体石蜡、胶体硫磺、氧化锌、促进剂、稳定剂、改性壳聚糖、抗低温助剂,混合均匀,得到橡胶乳,将模具浸渍凝固剂,再将模具浸渍橡胶乳,经过高温干燥,最后冷却,脱模,得到半成品,将半成品手套进行修边和检测,将半成品的手套放入环氧乙烷灭菌设备中进行灭菌,即可得到成品,具备了通过制备改性壳聚糖,提高了壳聚糖对大肠杆菌、荧光假单胞菌、金黄色葡萄球菌、枯草杆菌等的抑制效果,从而提高了手套的抗菌性能,并通过添加抗低温助剂,提高了手套在低温条件下的穿戴柔软性的效果。
Description
技术领域
本发明涉及手套制备技术领域,具体为一种具有抗菌作用的耐低温手套制备工艺。
背景技术
手套由于具有屏障保护作用,能够很好的保护使用者的安全,已经被广泛的应用于人们的生产生活中。根据它的用途的不同,可以分为医用手套、工业手套和家用手套;根据生产制造所用材质的不同,可以分为天然橡胶手套、丁腈手套、PVC手套等,医用抗菌手套是医生在工作中使用的防护用品,目的是为了防止病菌在医生和患者之间相互传播。
目前市场中医用抗菌手套抗菌效果较差,并且在低温下手套很硬,手感很差,难以进行精密操作,影响正常工作,无法满足使用者需要。
发明内容
本发明的目的在于提供一种具有抗菌作用的耐低温手套制备工艺,具备了通过制备改性壳聚糖,提高了壳聚糖对大肠杆菌、荧光假单胞菌、金黄色葡萄球菌、枯草杆菌等的抑制效果,提高了手套的抗菌性能,并通过添加抗低温助剂,提高了手套在低温条件下的穿戴柔软性的效果,解决了目前市场中医用抗菌手套抗菌效果较差,并且在低温下手套很硬,手感很差,难以进行精密操作,影响正常工作,无法满足使用者需要的问题。
为实现上述目的,本发明提供如下技术方案:一种具有抗菌作用的耐低温手套制备工艺,包括以下步骤:
步骤S1:用旋转毛刷刷洗模具,再用60-70℃水冲洗模具,然后晾干;
步骤S2:将天然橡胶、丁腈橡胶、乳化液体石蜡、胶体硫磺、氧化锌、促进剂、稳定剂、改性壳聚糖、抗低温助剂,搅拌混合均匀,得到橡胶乳;
步骤S3:将模具浸渍凝固剂,之后烘干模具,再将模具浸渍橡胶乳,经过高温干燥,最后冷却,把手套从模具上脱下,得到半成品;
步骤S4:将半成品手套进行修边,对修边后的手套进行充气检测和拉力强度检测,并将不合格的手套直接进行销毁处理;
步骤S5:将半成品的手套放入环氧乙烷灭菌设备中进行灭菌,灭菌后即可得到成品。
可选的,所述步骤S2中搅拌速率为100-150r/min,搅拌时间为60min。
可选的,所述步骤S2中改性壳聚糖采用如下方法制备:将壳聚糖投入质量比为10:1的无水甲醇和乙酸的混合溶剂中,将温度升高至45-55℃,逐步滴加丁酮,边搅拌边反应,30-40min后,停止加入丁酮,将溶液的pH调节至6-7,抽滤,取上层固体,环己烷冲洗2-3次,40-45℃真空干燥至恒重,得改性壳聚糖中间体,将改性壳聚糖中间体与100mL异丙醇混合,然后加入8-12mL质量浓度为40%氢氧化钠溶液中,升温至45-55℃,加入三甲基-铵乙酸盐,反应1h,调节pH调节至7,用质量比为10:1的无水甲醇和乙酸的混合溶剂浸泡洗涤2-3次,40-45℃真空干燥至恒重,即可得到改性壳聚糖。
可选的,在进行所述步骤S2前,将氧化锌与3-甲基丙烯酰氧基丙基甲基二甲氧基硅烷混合制备改性氧化锌。
可选的,所述步骤S2中稳定剂为液体钙锌稳定剂、硫醇丁基锡、二月桂酸二丁基锡的一种或两种以上的组合。
可选的,所述步骤S2中促进剂为二乙基二硫代氨基甲酸锌、二丁基二硫代氨基甲酸锌和二甲基二硫代氨基甲酸锌中的一种或多种。
可选的,所述步骤S2中抗低温助剂为硫酸钙晶须、碱式硫酸镁晶须中的一种或两种以上的组合。
可选的,所述步骤S3中凝固剂为硝酸钙溶液。
与现有技术相比,本发明的有益效果如下:
一、本发明通过制备改性壳聚糖,改性壳聚糖提高了壳聚糖的抗菌性能,使产品对大肠杆菌、荧光假单胞菌、金黄色葡萄球菌、枯草杆菌等有更好的抑制作用,提高了手套的抗菌性能。
二、本发明通过设置抗低温助剂为硫酸钙晶须或碱式硫酸镁晶须,硫酸钙晶须具有高强度、高韧性、高绝缘性、耐磨耗、耐高温、耐酸碱、抗腐蚀、易于表面处理、易与聚合物复合、无毒等诸多优良的理化性能,碱式硫酸镁晶须是一种新型无机阻燃、增强纤维材料,与复合塑料相比,具有明显的增强、增刚、阻燃作用,可使制件具有高变形温度,制件表面光洁美观,降低制件的比重,并且无毒环保,有效保证产手套在低温环境下的工作性能,提高了手套的适用性,
三、本发明通过凝固剂为硝酸钙的甲醇溶液,有利于提高手套的穿戴的舒适性,还有利于提高手套的拉伸强度以及耐刺穿性能,使得手套不易受损,使得菌体不易从破损处进入手套中,从而使得手套的抗菌效果较佳。
四、本发明通过天然橡胶和丁腈橡胶的混合,既具有天然橡胶良好的拉伸性能,又避免了丁腈橡胶拉伸性能不好的弊端,还避免了大量使用天然橡胶带来的过敏问题,提高了产品的安全性。
附图说明
图1为本发明工艺流程图。
具体实施方式
下面将结合本发明实施例中的附图,对本发明实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例仅仅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做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。
请参阅图1,本发明提供一种技术方案:一种具有抗菌作用的耐低温手套制备工艺,包括以下步骤:
步骤S1:用旋转毛刷刷洗模具,再用60-70℃水冲洗模具,然后晾干,防止模具表面落有灰尘或者细菌,提高了成品的质量;
步骤S2:将天然橡胶、丁腈橡胶、乳化液体石蜡、胶体硫磺、氧化锌、促进剂、稳定剂、改性壳聚糖、抗低温助剂,搅拌混合均匀,得到橡胶乳;
步骤S3:将模具浸渍凝固剂,之后烘干模具,再将模具浸渍橡胶乳,经过高温干燥,最后冷却,把手套从模具上脱下,得到半成品;
步骤S4:将半成品手套进行修边,对修边后的手套进行充气检测和拉力强度检测,并将不合格的手套直接进行销毁处理,对手套进行修边和检测,保证了成品手套在使用时的稳定性。
步骤S5:将半成品的手套放入环氧乙烷灭菌设备中进行灭菌,灭菌后即可得到成品,环氧乙烷灭菌方法能杀灭所有微生物,包括细菌芽孢,灭菌物品可以被包裹、整体封装,可保持使用前呈无菌状态,相对而言,EO不腐蚀塑料、金属和橡胶,不会使物品发生变黄变脆,能穿透形态不规则物品并灭菌,可用于那些不能用消毒剂浸泡,干热、压力、蒸汽及其他化学气体灭菌之物品的灭菌,提高了产品使用时的安全性。
进一步的,步骤S2中搅拌速率为100-150r/min,搅拌时间为60min,在速率为100-150r/min下搅拌60min,能够使原料充分混合,以便后续处理。
进一步的,步骤S2中改性壳聚糖采用如下方法制备:将壳聚糖投入质量比为10:1的无水甲醇和乙酸的混合溶剂中,将温度升高至45-55℃,逐步滴加丁酮,边搅拌边反应,30-40min后,停止加入丁酮,将溶液的pH调节至6-7,抽滤,取上层固体,环己烷冲洗2-3次,40-45℃真空干燥至恒重,得改性壳聚糖中间体,将改性壳聚糖中间体与100mL异丙醇混合,然后加入8-12mL质量浓度为40%氢氧化钠溶液中,升温至45-55℃,加入三甲基-铵乙酸盐,反应1h,调节pH调节至7,用质量比为10:1的无水甲醇和乙酸的混合溶剂浸泡洗涤2-3次,40-45℃真空干燥至恒重,即可得到改性壳聚糖,改性壳聚糖提高了壳聚糖的抗菌性能,使产品对大肠杆菌、荧光假单胞菌、金黄色葡萄球菌、枯草杆菌等有更好的抑制作用,提高了手套的抗菌性能。
进一步的,进行所述步骤S2前,将氧化锌与3-甲基丙烯酰氧基丙基甲基二甲氧基硅烷混合制备改性氧化锌,改性氧化锌具有高效的生物学活性、吸收率高、抗氧化能力强、安全稳定等特性。
进一步的,步骤S2中稳定剂为液体钙锌稳定剂、硫醇丁基锡、二月桂酸二丁基锡的一种或两种以上的组合,液体钙锌稳定剂分散性、相容性、加工流动性,适应性广,制品表面光洁度优;热稳定性优良,不含重金属及其他有毒成分,无硫化现象;具有优良的电绝缘性,无杂质,具有高效耐候性;适用范围广,实用性强。
进一步的,步骤S2中促进剂为二乙基二硫代氨基甲酸锌、二丁基二硫代氨基甲酸锌和二甲基二硫代氨基甲酸锌中的一种或多种,通过添加促进剂能使硫化剂活化,从而加快硫化剂与橡胶分子的交联反应,达到缩短硫化时间和降低硫化温度的,使产品抗焦烧性强、定伸强度高。
进一步的,步骤S2中抗低温助剂为硫酸钙晶须、碱式硫酸镁晶须中的一种或两种以上的组合,硫酸钙晶须具有高强度、高模量、高韧性、高绝缘性、耐磨耗、耐高温、耐酸碱、抗腐蚀、红外线反射性良好、易于表面处理、易与聚合物复合、无毒等诸多优良的理化性能,碱式硫酸镁晶须是一种新型无机阻燃、增强纤维材料,呈单晶结构,与复合塑料相比,具有明显的增强、增刚、阻燃作用,可使制件具有高变形温度,制件表面光洁美观,降低制件的比重,并且无毒环保,有效保证产手套在低温环境下的工作性能,提高了手套的适用性。
进一步的,步骤S3中凝固剂为硝酸钙溶液,通过凝固剂为硝酸钙的甲醇溶液,有利于提高手套的穿戴的舒适性,还有利于提高手套的拉伸强度以及耐刺穿性能,使得手套不易受损,使得菌体不易从破损处进入手套中,从而使得手套的抗菌效果较佳。
尽管已经示出和描述了本发明的实施例,对于本领域的普通技术人员而言,可以理解在不脱离本发明的原理和精神的情况下可以对这些实施例进行多种变化、修改、替换和变型,本发明的范围由所附权利要求及其等同物限定。
Claims (8)
1.一种具有抗菌作用的耐低温手套制备工艺,其特征在于,包括以下步骤:
步骤S1:用旋转毛刷刷洗模具,再用60-70℃水冲洗模具,然后晾干;
步骤S2:将天然橡胶、丁腈橡胶、乳化液体石蜡、胶体硫磺、氧化锌、促进剂、稳定剂、改性壳聚糖、抗低温助剂,搅拌混合均匀,得到橡胶乳;
步骤S3:将模具浸渍凝固剂,之后烘干模具,再将模具浸渍橡胶乳,经过高温干燥,最后冷却,把手套从模具上脱下,得到半成品;
步骤S4:将半成品手套进行修边,对修边后的手套进行充气检测和拉力强度检测,并将不合格的手套直接进行销毁处理;
步骤S5:将半成品的手套放入环氧乙烷灭菌设备中进行灭菌,灭菌后即可得到成品。
2.根据权利要求1所述的具有抗菌作用的耐低温手套制备工艺,其特征在于:所述步骤S2中搅拌速率为100-150r/min,搅拌时间为60min。
3.根据权利要求1所述的具有抗菌作用的耐低温手套制备工艺,其特征在于,所述步骤S2中改性壳聚糖采用如下方法制备:将壳聚糖投入质量比为10:1的无水甲醇和乙酸的混合溶剂中,将温度升高至45-55℃,逐步滴加丁酮,边搅拌边反应,30-40min后,停止加入丁酮,将溶液的pH调节至6-7,抽滤,取上层固体,环己烷冲洗2-3次,40-45℃真空干燥至恒重,得改性壳聚糖中间体,将改性壳聚糖中间体与100mL异丙醇混合,然后加入8-12mL质量浓度为40%氢氧化钠溶液中,升温至45-55℃,加入三甲基-铵乙酸盐,反应1h,调节pH调节至7,用质量比为10:1的无水甲醇和乙酸的混合溶剂浸泡洗涤2-3次,40-45℃真空干燥至恒重,即可得到改性壳聚糖。
4.根据权利要求1所述的具有抗菌作用的耐低温手套制备工艺,其特征在于:在进行所述步骤S2前,将氧化锌与3-甲基丙烯酰氧基丙基甲基二甲氧基硅烷混合制备改性氧化锌。
5.根据权利要求1所述的具有抗菌作用的耐低温手套制备工艺,其特征在于:所述步骤S2中稳定剂为液体钙锌稳定剂、硫醇丁基锡、二月桂酸二丁基锡的一种或两种以上的组合。
6.根据权利要求1所述的具有抗菌作用的耐低温手套制备工艺,其特征在于:所述步骤S2中促进剂为二乙基二硫代氨基甲酸锌、二丁基二硫代氨基甲酸锌和二甲基二硫代氨基甲酸锌中的一种或多种。
7.根据权利要求1所述的具有抗菌作用的耐低温手套制备工艺,其特征在于:所述步骤S2中抗低温助剂为硫酸钙晶须、碱式硫酸镁晶须中的一种或两种以上的组合。
8.根据权利要求1所述的具有抗菌作用的耐低温手套制备工艺,其特征在于:所述步骤S3中凝固剂为硝酸钙溶液。
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