CN107699186A - 一种改性医用硅橡胶压敏胶及其制备方法 - Google Patents

一种改性医用硅橡胶压敏胶及其制备方法 Download PDF

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CN107699186A
CN107699186A CN201710929324.7A CN201710929324A CN107699186A CN 107699186 A CN107699186 A CN 107699186A CN 201710929324 A CN201710929324 A CN 201710929324A CN 107699186 A CN107699186 A CN 107699186A
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史月龙
吴英亮
汤静
吴坤林
刘文斌
孔玉琴
曾宋君
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Nanjing Tuai Bio Pharmaceutical Technology Co
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Abstract

本发明公开了一种改性医用硅橡胶压敏胶及其制备方法。该压敏胶包括按重量份数计的组分:硅橡胶本体35‑45份、改性剂5‑18份、高分子亲水性化合物20‑28份、添加剂5‑10份;所述添加剂由增粘树脂、抗氧化剂、抑菌剂和润滑剂按照重量比1:1:1:1混合而成;所述改性剂由马来酸接枝剂、纳米二氧化钛和羟基聚硅氧烷混合而成。先称取各组分;再制备改性剂;复配制备压敏胶。本发明压敏胶粘接力强、杀菌能力强、创面使用后感染率低,且生物相容性好。

Description

一种改性医用硅橡胶压敏胶及其制备方法
技术领域
本发明属于压敏胶技术领域,具体涉及一种改性医用硅橡胶压敏胶及其制备方法。
背景技术
压敏胶粘剂是一种自胶粘物质,在较小的作用力下就能形成比较牢固的粘接力,它在两物体表面之间形成的粘接力主要是范德华力,因而,粘接面形成后,粘接表面的结构没有被破坏。乳液型聚丙烯酸酯压敏胶因污染小、性能稳定、合成条件容易控制等优点深受广大群众的喜欢,但乳液型聚丙烯酸酯的粘接性能差,难以平衡内聚强度、剥离强度和初粘力,因而如何提高其力学性能是当前急需解决的问题。
药物透皮吸收,即药物与局部皮肤接触,穿过角质层,扩散透过皮肤,然后由毛细血管吸收而进入体循环的一种给药方式。随着高分子辅料的发展,尤其使压敏胶在医药领域的发展和应用,开发了一些新的剂型,如涂膜剂、膜剂、凝胶剂、巴布剂、穴位贴敷剂、气雾剂等。
发明内容
针对现有技术的不足,本发明的目的在于提供一种改性医用硅橡胶压敏胶及其制备方法,该压敏胶粘接力强、杀菌能力强、创面使用后感染率低,且生物相容性好。
为解决现有技术问题,本发明采取的技术方案为:
一种改性医用硅橡胶压敏胶,包括按重量份数计的组分:硅橡胶本体35-45份、改性剂5-18份、高分子亲水性化合物20-28份、添加剂5-10份;所述添加剂由增粘树脂、抗氧化剂、抑菌剂和润滑剂按照重量比1:1:1:1混合而成;所述改性剂由马来酸接枝剂、纳米二氧化钛和羟基聚硅氧烷混合而成。
优选地,上述改性医用硅橡胶压敏胶,包括按重量份数计的组分:硅橡胶本体42份、改性剂10份、高分子亲水性化合物25份、添加剂8份。
优选地,所述增粘树脂为松香酯。
优选地,所述抗氧化剂为质量分数为10-30%的银杏提取物。
优选地,所述抑菌剂为粒径为10-25μm的纳米银或壳聚糖。
优选地,所述高分子亲水性化合物由聚乙二醇与丙烯酰胺缩合而成。
上述改性医用硅橡胶压敏胶的制备方法,包括以下步骤:步骤1,称取各组分;步骤2,将马来酸接枝剂和羟基聚硅氧烷混合投入反应釜中,加热至60-70℃时,加入纳米二氧化钛继续搅拌得改性剂;步骤3,将硅橡胶本体投入反应釜中融化,再加入改性剂、高分子亲水性化合物和添加剂,1500-1800rpm的速度搅拌后,投入挤出机中挤出,即可。
与现有技术相比,本发明压敏胶通过对硅橡胶本体进行改性接入纳米二氧化钛,再与其他组分复配混合制备所得,制备方法简单,设备需求量低,所得压敏胶生物相容性好,杀菌能力强,使用后创面感染率低。
具体实施方式
下面通过具体实施例对本发明作进一步详细介绍。
实施例1
一种改性医用硅橡胶压敏胶,包括按重量份数计的组分:硅橡胶本体35份、改性剂5份、高分子亲水性化合物20份、添加剂5份;所述添加剂由增粘树脂、抗氧化剂、抑菌剂和润滑剂按照重量比1:1:1:1混合而成;所述改性剂由马来酸接枝剂、纳米二氧化钛和羟基聚硅氧烷混合而成。
其中,所述增粘树脂为松香酯。所述抗氧化剂为质量分数为10%的银杏提取物。所述抑菌剂为粒径为10μm的纳米银。所述高分子亲水性化合物由聚乙二醇与丙烯酰胺缩合而成,两者的摩尔比为2:1。
上述改性医用硅橡胶压敏胶的制备方法,包括以下步骤:步骤1,称取各组分;步骤2,将马来酸接枝剂和羟基聚硅氧烷混合投入反应釜中,加热至60℃时,加入纳米二氧化钛继续搅拌得改性剂;步骤3,将硅橡胶本体投入反应釜中融化,再加入改性剂、高分子亲水性化合物和添加剂,1500rpm的速度搅拌后,投入挤出机中挤出,即可。
实施例2
一种改性医用硅橡胶压敏胶,包括按重量份数计的组分:硅橡胶本体42份、改性剂10份、高分子亲水性化合物25份、添加剂8份;所述添加剂由增粘树脂、抗氧化剂、抑菌剂和润滑剂按照重量比1:1:1混合而成;所述改性剂由马来酸接枝剂、纳米二氧化钛和羟基聚硅氧烷混合而成。
其中,所述增粘树脂为松香酯。所述抗氧化剂为质量分数为20%的银杏提取物。所述抑菌剂为壳聚糖。所述高分子亲水性化合物由聚乙二醇与丙烯酰胺缩合而成,两者摩尔比为1:1。
上述改性医用硅橡胶压敏胶的制备方法,包括以下步骤:步骤1,称取各组分;步骤2,将马来酸接枝剂和羟基聚硅氧烷混合投入反应釜中,加热至68℃时,加入纳米二氧化钛继续搅拌得改性剂;步骤3,将硅橡胶本体投入反应釜中融化,再加入改性剂、高分子亲水性化合物和添加剂,1700rpm的速度搅拌后,投入挤出机中挤出,即可。
实施例3
一种改性医用硅橡胶压敏胶,包括按重量份数计的组分:硅橡胶本体45份、改性剂18份、高分子亲水性化合物28份、添加剂10份;所述添加剂由增粘树脂、抗氧化剂、抑菌剂和润滑剂按照重量比1:1:1混合而成;所述改性剂由马来酸接枝剂、纳米二氧化钛和羟基聚硅氧烷混合而成。
其中,所述增粘树脂为松香酯。所述抗氧化剂为质量分数为30%的银杏提取物。所述抑菌剂为粒径为20μm的纳米银。所述高分子亲水性化合物由聚乙二醇与丙烯酰胺缩合而成,两者摩尔比3:1。
上述改性医用硅橡胶压敏胶的制备方法,包括以下步骤:步骤1,称取各组分;步骤2,将马来酸接枝剂和羟基聚硅氧烷混合投入反应釜中,加热至70℃时,加入纳米二氧化钛继续搅拌得改性剂;步骤3,将硅橡胶本体投入反应釜中融化,再加入改性剂、高分子亲水性化合物和添加剂,1800rpm的速度搅拌后,投入挤出机中挤出,即可。
对比例
一种改性医用硅橡胶压敏胶,包括按重量份数计的组分:硅橡胶本体42份、高分子亲水性化合物25份、添加剂8份;所述添加剂由增粘树脂、抗氧化剂、抑菌剂和润滑剂按照重量比1:1:1混合而成。
其中,所述增粘树脂为松香酯。所述抗氧化剂为质量分数为20%的银杏提取物。所述抑菌剂为壳聚糖。所述高分子亲水性化合物由聚乙二醇与丙烯酰胺缩合而成,两者摩尔比为1:1。
上述改性医用硅橡胶压敏胶的制备方法,包括以下步骤:步骤1,称取各组分;步骤2,将硅橡胶本体投入反应釜中融化,再加入改性剂、高分子亲水性化合物和添加剂,1700rpm的速度搅拌后,投入挤出机中挤出,即可。
对实施例1-3和对比例的压敏胶性能进行检测,检测方法采用常规检测方法。
从上述结果可以看出,本发明压敏胶性能优良,抗剥离,透气性好,杀菌率高,使用后残留量小,且生物相容性好,不易引起过敏反应。
另外,本发明不限于上述实施方式,只要在不超出本发明的范围内,可以采取各种方式实施本发明。

Claims (7)

1.一种改性医用硅橡胶压敏胶,其特征在于,包括按重量份数计的组分:硅橡胶本体35-45份、改性剂5-18份、高分子亲水性化合物20-28份、添加剂5-10份;所述添加剂由增粘树脂、抗氧化剂、抑菌剂和润滑剂按照重量比1:1:1:1混合而成;所述改性剂由马来酸接枝剂、纳米二氧化钛和羟基聚硅氧烷混合而成。
2.根据权利要求1所述的一种改性医用硅橡胶压敏胶,其特征在于,上述改性医用硅橡胶压敏胶,包括按重量份数计的组分:硅橡胶本体42份、改性剂10份、高分子亲水性化合物25份、添加剂8份。
3.根据权利要求1所述的一种改性医用硅橡胶压敏胶,其特征在于,所述增粘树脂为松香酯。
4.根据权利要求1所述的一种改性医用硅橡胶压敏胶,其特征在于,所述抗氧化剂为质量分数为10-30%的银杏提取物。
5.根据权利要求1所述的一种改性医用硅橡胶压敏胶,其特征在于,所述抑菌剂为粒径为10-25μm的纳米银或壳聚糖。
6.根据权利要求1所述的一种改性医用硅橡胶压敏胶,其特征在于,所述高分子亲水性化合物由聚乙二醇与丙烯酰胺缩合而成。
7.基于权利要求1所述的一种改性医用硅橡胶压敏胶的制备方法,其特征在于,包括以下步骤:步骤1,称取各组分;步骤2,将马来酸接枝剂和羟基聚硅氧烷混合投入反应釜中,加热至60-70℃时,加入纳米二氧化钛继续搅拌得改性剂;步骤3,将硅橡胶本体投入反应釜中融化,再加入改性剂、高分子亲水性化合物和添加剂,1500-1800rpm的速度搅拌后,投入挤出机中挤出,即可。
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