CN107802879A - 一种尿不湿用吸水高分子材料及其制备方法 - Google Patents
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Abstract
本发明公开了一种尿不湿用吸水高分子材料及其制备方法,吸水高分子材料包含如下按重量份计的组分:穿心莲10‑30份、铁树根5‑15份、连翘30‑50份、知母5‑20份、虎杖15‑25份、丝素蛋白10‑25份、丙烯酸40‑50份、海藻酸钠凝胶4‑8份、氢氧化钠25‑40份、丙烯酸羟乙酯2‑15份、丙三醇5‑20份、聚丙烯酰胺5‑12份、引发剂0.5‑5份和N,N‑亚甲基双丙烯酰胺0.01‑0.05份。本发明公开了尿不湿用吸水高分材料制备方法的具体步骤。用本发明吸水高分子材料制备的尿不湿具有较大的吸收尿液的能力和较快的吸收速率及持久抗菌抑菌的功能,有效保护婴幼儿免受细菌感染,为婴幼儿提供持久保护。
Description
技术领域
本发明涉及一种婴儿用品领域,特别涉及一种尿不湿用吸水高分子材料及其制备方法。
背景技术
随着经济的发展和生活节奏的加快,尿不湿成为深受年轻妈妈喜爱的婴儿护理用品之一。“尿不湿”起作用的是由纯木浆和高吸水树脂构成层状结构的吸收芯层。
现有尿不湿的吸水高分子材料种类很多,CN106902379公开了一种魔芋葡甘聚糖环保尿不湿,以魔芋葡甘聚糖、柠檬酸钠、黄柏、薄荷脑、金银花、麝香为原料制备得到魔芋葡甘聚糖环保尿不湿,该尿不湿可生物降解,但吸水量不大。
发明内容
本发明要解决的技术问题是:本发明提供一种尿不湿用吸水高分子材料,具有吸收尿液量大,持久抗菌抑菌的特点,本发明提供一种尿不湿用吸水高分子材料的制备方法。
为了解决上述技术问题,本发明尿不湿用吸水高分子材料,包含如下按重量份计的组分:穿心莲10-30份、铁树根5-15份、连翘30-50份、知母5-20份、虎杖15-25份、丝素蛋白10-25份、丙烯酸40-50份、海藻酸钠凝胶4-8份、氢氧化钠25-40份、丙烯酸羟乙酯2-15份、丙三醇5-20份、聚丙烯酰胺5-12份、引发剂0.5-5份和N,N-亚甲基双丙烯酰胺0.01-0.05份。
进一步地,引发剂是质量比为8:2的过硫酸钾与亚硫酸钠的混合物。
为了使海藻酸钠凝胶的形态呈多孔状以提高吸水高分子材料的吸水量,海藻酸钠凝胶的制备方法是:将海藻酸钠溶于蒸馏水配制成质量分数为2%的海藻酸钠溶液,将氯化钙溶于蒸馏水中,配制成质量分数为5%的氯化钙溶液,按重量份取20份氯化钙溶液和5份海藻酸钠溶液,将氯化钙溶液倒入海藻酸钠溶液中搅拌均匀,置于60℃恒温水浴中,然后按重量份加入碳酸氢钠2份,在超声波中混合均匀,超声波的频率为20KHz,超声波的功率密度为0.4W/cm2,静置5-15min,然后用清水漂洗凝胶体,洗去凝胶体表面富余的氯化钙,制备得到多孔的海藻酸钠凝胶;
为了增大高分子材料的吸水保水能力,并使用本发明高分子材料制备的尿不湿具有长久抗菌抑菌的功能,本发明一种尿不湿用吸水高分子材料的制备方法,包括如下步骤:
(1)将穿心莲、铁树根、连翘、知母和虎杖放入水中煎煮2-3次,过滤,将每次过滤的滤液合并,然后加入丝素蛋白,在120-150℃进行干燥包衣,得第一缓释颗粒;
(2)取氢氧化钠配制成质量分数50%的氢氧化溶液,将氢氧化钠溶液置于滴液漏斗中,以8g/min的滴加速度加入到丙烯酸中,滴加结束后迅速搅拌混合液至均匀,得第一混合物,搅拌速度为420r/min,丙烯酸的中和度为70%;
(3)将丙烯酸羟乙酯、丙三醇、聚丙烯酰胺和海藻酸钠凝胶加入到第一混合物中,混合均匀,升温至60-80℃,搅拌均匀,然后加入引发剂和N,N-亚甲基双丙烯酰胺,混合均匀,在65℃反应4.5h,得到第二混合物;
(4)将第二混合物在-2℃冷冻室冷冻3h,再在室温融化,然后将第一缓释颗粒和第二混合物分别投入双螺杆挤出机中,于100-160℃下挤出得到吸水高分子材料。
本发明的有益效果是:将穿心莲、铁树根、连翘、知母、虎杖、丝素蛋白制成缓释颗粒,使得用本发明高分子材料制备的尿不湿具有长久抗菌抑菌的效果,有效抑制尿液中滋生的细菌对婴幼儿皮肤的感染,减少红屁股的发生率,由于尿不湿与肌肤摩擦时,缓释颗粒才会破裂发挥作用,所以即使尿不湿长时间存放其抗菌抑菌的功效也不会减少,尿不湿表面也不会发黄;海藻酸钠凝胶、丙三醇、丙烯酸羟乙酯协同作用可进一步增大丙烯酸-聚丙烯酰胺树脂吸收尿液的能力及吸收尿液的速率;控制丙烯酸的中和度、聚合反应温度和对第二混合物进行冻融处理,使制备的高分子材料呈现多孔状的形态,进一步增大了高分子材料的吸收尿液的能力,有效避免了尿不湿使用过程中因排尿量多而产生漏液的现象;本发明产品还具有较好的透气性和柔软性,穿戴舒服。
具体实施方式
本发明通过以下方法制备尿不湿用吸水高分子材料,所述原料均为重量份:
尿不湿用吸水高分子材料的制备方法,包括如下步骤:
(1)将穿心莲、铁树根、连翘、知母和虎杖放入水中煎煮2-3次,过滤,将每次过滤的滤液合并,然后加入丝素蛋白,在120-150℃进行干燥包衣,得第一缓释颗粒;
(2)取氢氧化钠配制成质量分数50%的氢氧化溶液,将氢氧化钠溶液置于滴液漏斗中,以以8g/min的滴加速度加入到丙烯酸中,滴加结束后迅速搅拌混合液至均匀,得第一混合物,搅拌速度为420r/min,丙烯酸的中和度为70%;
(3)将海藻酸钠溶于蒸馏水配制成质量分数为2%的海藻酸钠溶液,将氯化钙溶于蒸馏水中,配制成质量分数为5%的氯化钙溶液,按重量份取20份氯化钙溶液和5份海藻酸钠溶液,将氯化钙溶液倒入海藻酸钠溶液中搅拌均匀,置于60℃恒温水浴中,然后按重量份加入碳酸氢钠2份,在超声波中混合均匀,超声波的频率为20KHz,超声波的功率密度为0.4W/cm2,静置5-15min,然后用清水漂洗凝胶体,洗去凝胶体表面富余的氯化钙,制备得到多孔的海藻酸钠凝胶;
(4)将丙烯酸羟乙酯、丙三醇、聚丙烯酰胺和海藻酸钠凝胶加入到第一混合物中,混合均匀,升温至60-80℃,搅拌均匀,然后加入质量比为8:2的过硫酸钾与亚硫酸钠的混合物和N,N-亚甲基双丙烯酰胺,混合均匀,在65℃反应4.5h,得到第二混合物;
(5)将第二混合物在-2℃冷冻室冷冻3h,再在室温融化,然后将第一缓释颗粒和第二混合物分别投入双螺杆挤出机中,于140℃下挤出得到吸水高分子材料。
本发明具体按上述方法实施了以下几组实施例,每组实施例的组分及含量见表1,每组实施例获得的吸水高分子材料的性能见表2。本发明实施例中引发剂为质量比为8:2的过硫酸钾与亚硫酸钠的混合物。
表1
原料 | 实施例1 | 实施例2 | 实施例3 | 实施例4 | 实施例5 | 实施例6 |
穿心莲 | 20份 | 25份 | 20份 | 25份 | 12份 | 25份 |
铁树根 | 10份 | 10份 | 10份 | 5份 | 12份 | 10份 |
连翘 | 40份 | 45份 | 40份 | 45份 | 32份 | 45份 |
知母 | 15份 | 10份 | 15份 | 5份 | 18份 | 10份 |
虎杖 | 18份 | 20份 | 18份 | 20份 | 20份 | 20份 |
丝素蛋白 | 20份 | 20份 | 20份 | 25份 | 22份 | 20份 |
丙烯酸 | 45份 | 45份 | 50份 | 40份 | 42份 | 40份 |
海藻酸钠凝胶 | 6份 | 6份 | 4份 | 4份 | 4份 | 6份 |
氢氧化钠 | 35份 | 35份 | 40份 | 30份 | 35份 | 32份 |
丙烯酸羟乙酯 | 5份 | 10份 | 12份 | 12份 | 12份 | 5份 |
丙三醇 | 10份 | 15份 | 18份 | 15份 | 16份 | 8份 |
聚丙烯酰胺 | 12份 | 10份 | 12份 | 8份 | 10份 | 6份 |
引发剂 | 4份 | 4份 | 4份 | 3份 | 4份 | 4份 |
交联剂 | 0.03份 | 0.03份 | 0.04份 | 0.02份 | 0.03份 | 0.04份 |
对以上实施例得到的吸水高分子材料进行吸液量、pH、杀菌率、吸液速率的测试,测试结果如表一所示。其中吸液量、pH、吸液速率的测试方法依据中华人民共和国国家标准,纸尿裤吸水树脂GB/T22905-2008以及卫生巾高吸水树脂GB/T22975-2008,杀菌率测试方法依据中华人民共和国国家标准,一次性使用卫生用品卫生标准GB/T15979-2002。
表2
吸液量g/g | pH | 杀菌率% | 吸液速率s | |
实施例1 | 983 | 6.0 | 88 | 48 |
实施例2 | 1164 | 6.2 | 92 | 42 |
实施例3 | 912 | 6.3 | 91 | 54 |
实施例4 | 1069 | 6.2 | 86 | 55 |
实施例5 | 1085 | 6.2 | 92 | 52 |
实施例6 | 1156 | 6.2 | 89 | 43 |
从表中可以看出,本发明提供的吸水高分子材料具有较大的吸液量和较快的吸液速率,可较好的吸收尿液,有效避免尿液的返渗和漏液;本发明吸水高分子材料还具有较好的杀菌性能,即使长时间存放也不会影响其杀菌效果,能够持久抗菌抑菌,有效减少因浸有尿液的尿不湿不能及时更换而引起婴幼儿感染细菌,并有效预防婴幼儿红屁股的发生。
Claims (4)
1.一种尿不湿用吸水高分子材料,其特征在于,包含如下按重量份计的组分:穿心莲10-30份、铁树根5-15份、连翘30-50份、知母5-20份、虎杖15-25份、丝素蛋白10-25份、丙烯酸40-50份、海藻酸钠凝胶4-8份、氢氧化钠25-40份、丙烯酸羟乙酯2-15份、丙三醇5-20份、聚丙烯酰胺5-12份、引发剂0.5-5份和N,N-亚甲基双丙烯酰胺0.01-0.05份。
2.根据权利要求1所述的一种尿不湿用吸水高分子材料,其特征在于,所述引发剂是质量比为8:2的过硫酸钾与亚硫酸钠的混合物。
3.根据权利要求1所述的一种尿不湿用吸水高分子材料,其特征在于,所述海藻酸钠凝胶的制备方法是:将海藻酸钠溶于蒸馏水配制成质量分数为2%的海藻酸钠溶液,将氯化钙溶于蒸馏水中,配制成质量分数为5%的氯化钙溶液,按重量份取20份氯化钙溶液和5份海藻酸钠溶液,将氯化钙溶液倒入海藻酸钠溶液中搅拌均匀,置于60℃恒温水浴中,然后按重量份加入碳酸氢钠2份,在超声波中混合均匀,超声波的频率为20KHz,超声波的功率密度为0.4W/cm2,静置5-15min,然后用清水漂洗凝胶体,洗去凝胶体表面富余的氯化钙,制备得到多孔海藻酸钠凝胶;
4.一种如权利要求1所述的尿不湿用吸水高分子材料的制备方法,其特征在于,包括如下步骤:
(1)将穿心莲、铁树根、连翘、知母和虎杖放入水中煎煮2-3次,过滤,将每次过滤的滤液合并,然后加入丝素蛋白,在120-150℃进行干燥包衣,得第一缓释颗粒;
(2)取氢氧化钠配制成质量分数50%的氢氧化溶液,将氢氧化钠溶液置于滴液漏斗中,以8g/min的滴加速度加入到丙烯酸中,滴加结束后迅速搅拌混合液至均匀,得第一混合物,搅拌速度为420r/min,丙烯酸的中和度为70%;
(3)将丙烯酸羟乙酯、丙三醇、聚丙烯酰胺和海藻酸钠凝胶加入到第一混合物中,混合均匀,升温至60-80℃,搅拌均匀,然后加入引发剂和N,N-亚甲基双丙烯酰胺,混合均匀,在65℃反应4.5h,得到第二混合物;
(4)将第二混合物在-2℃冷冻室冷冻3h,再在室温融化,然后将第一缓释颗粒和第二混合物分别投入双螺杆挤出机中,于100-160℃下挤出得到吸水高分子材料。
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