CN115233378A - 一种卫生材料用sm材料的制备方法 - Google Patents
一种卫生材料用sm材料的制备方法 Download PDFInfo
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- CN115233378A CN115233378A CN202211009542.6A CN202211009542A CN115233378A CN 115233378 A CN115233378 A CN 115233378A CN 202211009542 A CN202211009542 A CN 202211009542A CN 115233378 A CN115233378 A CN 115233378A
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- woven fabric
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- melt
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- 238000000034 method Methods 0.000 claims description 18
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 16
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- OSWFIVFLDKOXQC-UHFFFAOYSA-N 4-(3-methoxyphenyl)aniline Chemical compound COC1=CC=CC(C=2C=CC(N)=CC=2)=C1 OSWFIVFLDKOXQC-UHFFFAOYSA-N 0.000 claims description 5
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- 229940037003 alum Drugs 0.000 claims description 5
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- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
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- 229920005552 sodium lignosulfonate Polymers 0.000 claims description 2
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Classifications
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Abstract
本发明公开了一种卫生材料用SM材料的制备方法,属于SM材料技术领域,所述制备方发包括:制备纺粘无纺布,制备熔喷无纺布,制备改性液,复合;所述制备纺粘无纺布,将PP料、熔喷PP料、改性填料、氧化聚乙烯蜡、白油按照重量比为68‑70:3‑5:10‑12:2‑4:1‑3投入混料机中,经过混料后,进行熔融挤压、熔体过滤、熔体计量、纺丝、冷却、气流牵引、成网、热轧粘合后得到初级纺粘无纺布,然后将初级纺粘无纺布在改性液中浸泡,然后干燥,得到纺粘无纺布;本发明能够在提高SM无纺布的透气性和透水蒸气性的同时,提高SM无纺布的强度、柔软度、均匀性,降低SM无纺布的热收缩率。
Description
技术领域
本发明涉及SM材料技术领域,具体涉及一种卫生材料用SM材料的制备方法。
背景技术
目前,消费者除了关心纸尿裤的安全性外,选择纸尿裤更多考虑其舒适性,而透气性又是影响舒适性的一个重要因素。当婴幼儿睡觉或外出前,父母可能为他们穿上纸尿裤,在他们便溺前的好长一段时间,如果纸尿裤透气性不好,婴幼儿会因为纸尿裤不透气,体表温度升高,觉得不舒服,从而引起皮肤不适。另外,在有便溺情况时,纸尿裤与皮肤之间的空隙就会变得湿热,若透水蒸气性好,会减轻湿热的程度,增强舒适度;反之,透水蒸气性太差,产生的焐热感会使婴幼儿不舒服,严重时还会引起湿疹;现有的纸尿裤材料主要是将聚乙烯膜与纺粘无纺布膜进行复合,虽然强度高,抗渗透性好,但是透气性、透湿性和柔软度差,使用熔喷无纺布与纺粘无纺布复合制得SM无纺布,能够解决透气性、透湿性和柔软度的问题,但是SM无纺布易分层,而且强度低,抗渗透性差。
为了提高SM无纺布的强度和抗渗透性,解决易分层的问题,目前最常用的方法是增加无纺布的厚度,但是增加无纺布的厚度的同时,会造成SM无纺布的透气性、透湿性和柔软度降低,还会造成SM无纺布的热收缩率大,均匀性差。目前,还没有能够在提高SM无纺布的强度和抗渗透性性的同时,提高SM无纺布的透气性、透湿性、柔软度、均匀性,避免分层,并降低SM无纺布的热收缩率的方法。
发明内容
针对现有技术存在的不足,本发明提供了一种卫生材料用SM材料的制备方法,能够在提高SM无纺布的强度和抗渗透性性的同时,提高SM无纺布的透气性、透湿性、柔软度、均匀性,避免分层,并降低SM无纺布的热收缩率。
为解决以上技术问题,本发明采取的技术方案如下:
一种卫生材料用SM材料的制备方法,包括:制备纺粘无纺布,制备熔喷无纺布,制备改性液,复合。
所述制备纺粘无纺布,将PP料、熔喷PP料、改性填料、氧化聚乙烯蜡、白油按照重量比为68-70:3-5:10-12:2-4:1-3投入混料机中,经过混料后,进行熔融挤压、熔体过滤、熔体计量、纺丝、冷却、气流牵引、成网、热轧粘合后得到初级纺粘无纺布,然后将初级纺粘无纺布浸入改性液中,在30-35℃下静置20-25min,得到浸泡后的初级纺粘无纺布,然后将浸泡后的初级纺粘无纺布置于50-55℃干燥45-50min,得到纺粘无纺布;
所述制备纺粘无纺布中,所述PP料的MFR范围为35-40g/10min;
所述制备纺粘无纺布中,所述熔喷PP料的MFR范围为1500-1800g/10min;
所述改性填料的制备方法为:将微细二氧化硅气凝胶、纳米碳酸钙、三聚氰胺、木质素磺酸钠、十二烷基苯磺酸钠加入球磨机中进行球磨,控制球磨时的球料比为10-12:1,转速为320-350rpm,时间为30-35min,球磨结束进行紫外-超声处理,控制紫外-超声处理中紫外灯的功率为300-320W,紫外灯中心波长为340-360nm,超声波的输出功率为380-400W,紫外-超声处理时间为20-25min,紫外-超声处理结束,得到改性填料;
所述改性填料的制备中,微细二氧化硅气凝胶、纳米碳酸钙、三聚氰胺、木质素磺酸钠、十二烷基苯磺酸钠的重量比为3-5:18-20:3-7:4-6:1-2;
所述改性填料的制备中,所述纳米碳酸钙的粒径为50-80nm;
所述制备纺粘无纺布中,所述改性液的组成,按重量份计,包括:3-5份聚乙烯醇,2-4份聚乙烯吡咯烷酮,1-2份明矾,0.1-0.3份聚乙烯亚胺,30-35份去离子水;
所述制备纺粘无纺布中,初级纺粘无纺布与改性液的重量比为1:2-2.3。
所述制备熔喷无纺布,将熔喷PP料、聚乙烯蜡、纳米电气石粉、包覆粉末按照重量比为70-75:2-4:6-9:5-8投入混料机中,经过混料后,进行熔融挤压、熔体过滤、熔体计量后,经热气流超倍牵伸后,纤维冷却固化沉积于集网装置上,收卷成网,即得到熔喷无纺布;
所述包覆粉末的制备方法为:将纳米氧化铝、黄原胶、聚乙二醇1500、纳米氮化硼混合后加入球磨机中进行球磨,控制球磨时的球料比为10-12:1,转速为300-320rpm,时间为30-35min,球磨结束后得到混合粉,将混合粉置于包裹液中,进行超声震荡,控制超声震荡的频率为30-40kHz,功率为300-400W,时间为30-35min,超声震荡结束,得到浆料,将浆料置于70-75℃下烘至质量不再发生变化,得到包覆粉末;
所述包覆粉末的制备中,纳米氧化铝、黄原胶、聚乙二醇1500、纳米氮化硼的重量比为22-25:3-5:4-6:2-4;
所述包覆粉末的制备中,混合粉与包裹液的重量比为10:3-4;
所述包裹液的组成,按重量份计,包括:2-4份硅烷偶联剂KH540,1-3份阿拉伯胶,1-2份1,2-丙二醇,1.5-3份葡聚糖,12-15份去离子水。
所述包覆粉末的制备中,所述纳米氧化铝的粒径为180-200nm;
所述包覆粉末的制备中,所述纳米氮化硼的粒径为80-100nm;
所述制备熔喷无纺布中,所述熔喷PP料的MFR范围为1200-1400g/10min;
所述制备熔喷无纺布中,所述纳米电气石粉的粒径为100-120nm。
所述制备改性液,将透明质酸、山梨酸、硝酸银、十二烷基二甲基甜菜碱、甲酸、明胶、去离子水按照重量比为5-7:1-2:0.3-0.5:1.5-2:4-6:1-2:36-38混合均匀,在50-55℃下以100-120rpm的搅拌速度搅拌20-25min,得到初级改性液,对初级改性液进行微波改性,控制微波改性的功率为400-450W,时间为4-6min,微波改性结束得到改性液;
所述制备改性液中,所述透明质酸的重均分子量为100-120万。
所述复合,将改性液喷淋至纺粘无纺布,控制喷淋速度为200-220mL/min,改性液的用量为300-320mL/m2,喷淋结束后置于40-45℃下干燥1.5-2h,得到喷淋后的纺粘无纺布,然后向喷淋后的纺粘无纺布喷热熔胶,控制热熔胶的上胶量为3-5g/m,得到喷胶后的纺粘无纺布,将喷胶后的纺粘无纺布与熔喷无纺布进行复合,得到SM无纺布。
与现有技术相比,本发明的有益效果为:
(1)本发明的卫生材料用SM材料的制备方法,能够提高SM无纺布的透气性和透水蒸气性,制备的SM无纺布的透气度为1.9-2.2cc/cm2•sec,透湿度为13800-14300g/m2•24hr;
(2)本发明的卫生材料用SM材料的制备方法,能够提高SM无纺布的强度,制备的SM无纺布的抓取强度为63-68N,撕裂强度为22-26N,顶破强度为191-197N;
(3)本发明的卫生材料用SM材料的制备方法,能够提高SM无纺布的柔软度,制备的SM无纺布的柔软度为3.65-3.71g;
(4)本发明的卫生材料用SM材料的制备方法,能够提高SM无纺布的均匀性,制备的SM无纺布的纤网不匀率CV值为0.9-1.2%;
(5)本发明的卫生材料用SM材料的制备方法,能够降低SM无纺布的热收缩率,制备的SM无纺布的干热收缩率为0.3-0.5%;
(6)本发明的卫生材料用SM材料的制备方法,能够提高SM无纺布的抗渗透能力,制备的SM无纺布的静水压为73.2-75.7cmH2O,相比较于单独的熔喷无纺布,抗渗透能力大大增强。
具体实施方式
为了对本发明的技术特征、目的和效果有更加清楚的理解,现说明本发明的具体实施方式。
实施例1
一种卫生材料用SM材料的制备方法,具体为:
1.制备纺粘无纺布:将PP料、熔喷PP料、改性填料、氧化聚乙烯蜡、白油按照重量比为68:3:10:2:1投入混料机中,经过混料后,进行熔融挤压、熔体过滤、熔体计量、纺丝、冷却、气流牵引、成网、热轧粘合后得到初级纺粘无纺布,然后将初级纺粘无纺布浸入改性液中,在30℃下静置20min,得到浸泡后的初级纺粘无纺布,然后将浸泡后的初级纺粘无纺布置于50℃干燥45min,得到纺粘无纺布;
所述PP料的MFR范围为35g/10min;
所述熔喷PP料的MFR范围为1500g/10min;
所述改性填料的制备方法为:将微细二氧化硅气凝胶、纳米碳酸钙、三聚氰胺、木质素磺酸钠、十二烷基苯磺酸钠加入球磨机中进行球磨,控制球磨时的球料比为10:1,转速为320rpm,时间为30min,球磨结束进行紫外-超声处理,控制紫外-超声处理中紫外灯的功率为300W,紫外灯中心波长为340nm,超声波的输出功率为380W,紫外-超声处理时间为20min,紫外-超声处理结束,得到改性填料;
其中,微细二氧化硅气凝胶、纳米碳酸钙、三聚氰胺、木质素磺酸钠、十二烷基苯磺酸钠的重量比为3:18:3:4:1;
所述纳米碳酸钙的粒径为50nm;
所述改性液的组成,按重量份计,包括:3份聚乙烯醇,2份聚乙烯吡咯烷酮,1份明矾,0.1份聚乙烯亚胺,30份去离子水;
其中,初级纺粘无纺布与改性液的重量比为1:2。
2.制备熔喷无纺布:将熔喷PP料、聚乙烯蜡、纳米电气石粉、包覆粉末按照重量比为70:2:6:5投入混料机中,经过混料后,进行熔融挤压、熔体过滤、熔体计量后,经热气流超倍牵伸后,纤维冷却固化沉积于集网装置上,收卷成网,即得到熔喷无纺布;
所述包覆粉末的制备方法为:将纳米氧化铝、黄原胶、聚乙二醇1500、纳米氮化硼混合后加入球磨机中进行球磨,控制球磨时的球料比为10:1,转速为300rpm,时间为30min,球磨结束后得到混合粉,将混合粉置于包裹液中,进行超声震荡,控制超声震荡的频率为30kHz,功率为300W,时间为30min,超声震荡结束,得到浆料,将浆料置于70℃下烘至质量不再发生变化,得到包覆粉末;
其中,纳米氧化铝、黄原胶、聚乙二醇1500、纳米氮化硼的重量比为22:3:4:2;
其中,混合粉与包裹液的重量比为10:3;
所述包裹液的组成,按重量份计,包括:2份硅烷偶联剂KH540,1份阿拉伯胶,1份1,2-丙二醇,1.5份葡聚糖,12份去离子水。
所述纳米氧化铝的粒径为180nm;
所述纳米氮化硼的粒径为80nm;
所述熔喷PP料的MFR范围为1200g/10min;
所述纳米电气石粉的粒径为100nm。
3.制备改性液:将透明质酸、山梨酸、硝酸银、十二烷基二甲基甜菜碱、甲酸、明胶、去离子水按照重量比为5:1:0.3:1.5:4:1:36混合均匀,在50℃下以100rpm的搅拌速度搅拌20min,得到初级改性液,对初级改性液进行微波改性,控制微波改性的功率为400W,时间为4min,微波改性结束得到改性液;
所述透明质酸的重均分子量为100万。
4.复合:所述复合,将改性液喷淋至纺粘无纺布,控制喷淋速度为200mL/min,改性液的用量为300mL/m2,喷淋结束后置于40℃下干燥1.5h,得到喷淋后的纺粘无纺布,然后向喷淋后的纺粘无纺布喷热熔胶,控制热熔胶的上胶量为3g/m,得到喷胶后的纺粘无纺布,将喷胶后的纺粘无纺布与熔喷无纺布进行复合,得到SM无纺布。
实施例2
一种卫生材料用SM材料的制备方法,具体为:
1.制备纺粘无纺布:将PP料、熔喷PP料、改性填料、氧化聚乙烯蜡、白油按照重量比为69:4:11:3:2投入混料机中,经过混料后,进行熔融挤压、熔体过滤、熔体计量、纺丝、冷却、气流牵引、成网、热轧粘合后得到初级纺粘无纺布,然后将初级纺粘无纺布浸入改性液中,在32℃下静置22min,得到浸泡后的初级纺粘无纺布,然后将浸泡后的初级纺粘无纺布置于52℃干燥47min,得到纺粘无纺布;
所述PP料的MFR范围为37g/10min;
所述熔喷PP料的MFR范围为1600g/10min;
所述改性填料的制备方法为:将微细二氧化硅气凝胶、纳米碳酸钙、三聚氰胺、木质素磺酸钠、十二烷基苯磺酸钠加入球磨机中进行球磨,控制球磨时的球料比为11:1,转速为330rpm,时间为32min,球磨结束进行紫外-超声处理,控制紫外-超声处理中紫外灯的功率为310W,紫外灯中心波长为350nm,超声波的输出功率为390W,紫外-超声处理时间为22min,紫外-超声处理结束,得到改性填料;
其中,微细二氧化硅气凝胶、纳米碳酸钙、三聚氰胺、木质素磺酸钠、十二烷基苯磺酸钠的重量比为4:19:4:5:1.5;
所述纳米碳酸钙的粒径为70nm;
所述改性液的组成,按重量份计,包括:4份聚乙烯醇,3份聚乙烯吡咯烷酮,1.5份明矾,0.2份聚乙烯亚胺,32份去离子水;
其中,初级纺粘无纺布与改性液的重量比为1:2.2。
2.制备熔喷无纺布:将熔喷PP料、聚乙烯蜡、纳米电气石粉、包覆粉末按照重量比为72:3:7:6投入混料机中,经过混料后,进行熔融挤压、熔体过滤、熔体计量后,经热气流超倍牵伸后,纤维冷却固化沉积于集网装置上,收卷成网,即得到熔喷无纺布;
所述包覆粉末的制备方法为:将纳米氧化铝、黄原胶、聚乙二醇1500、纳米氮化硼混合后加入球磨机中进行球磨,控制球磨时的球料比为11:1,转速为310rpm,时间为32min,球磨结束后得到混合粉,将混合粉置于包裹液中,进行超声震荡,控制超声震荡的频率为35kHz,功率为350W,时间为32min,超声震荡结束,得到浆料,将浆料置于72℃下烘至质量不再发生变化,得到包覆粉末;
其中,纳米氧化铝、黄原胶、聚乙二醇1500、纳米氮化硼的重量比为23:4:5:3;
其中,混合粉与包裹液的重量比为10:3.5;
所述包裹液的组成,按重量份计,包括:3份硅烷偶联剂KH540,2份阿拉伯胶,1.5份1,2-丙二醇,2份葡聚糖,13份去离子水。
所述纳米氧化铝的粒径为190nm;
所述纳米氮化硼的粒径为90nm;
所述熔喷PP料的MFR范围为1300g/10min;
所述纳米电气石粉的粒径为110nm。
3.制备改性液:将透明质酸、山梨酸、硝酸银、十二烷基二甲基甜菜碱、甲酸、明胶、去离子水按照重量比为6:1.5:0.4:1.7:5:1.5:37混合均匀,在52℃下以110rpm的搅拌速度搅拌22min,得到初级改性液,对初级改性液进行微波改性,控制微波改性的功率为420W,时间为5min,微波改性结束得到改性液;
所述透明质酸的重均分子量为110万。
4.复合:所述复合,将改性液喷淋至纺粘无纺布,控制喷淋速度为210mL/min,改性液的用量为310mL/m2,喷淋结束后置于42℃下干燥1.7h,得到喷淋后的纺粘无纺布,然后向喷淋后的纺粘无纺布喷热熔胶,控制热熔胶的上胶量为4g/m,得到喷胶后的纺粘无纺布,将喷胶后的纺粘无纺布与熔喷无纺布进行复合,得到SM无纺布。
实施例3
一种卫生材料用SM材料的制备方法,具体为:
1.制备纺粘无纺布:将PP料、熔喷PP料、改性填料、氧化聚乙烯蜡、白油按照重量比为70:5:12:4:3投入混料机中,经过混料后,进行熔融挤压、熔体过滤、熔体计量、纺丝、冷却、气流牵引、成网、热轧粘合后得到初级纺粘无纺布,然后将初级纺粘无纺布浸入改性液中,在35℃下静置25min,得到浸泡后的初级纺粘无纺布,然后将浸泡后的初级纺粘无纺布置于55℃干燥50min,得到纺粘无纺布;
所述PP料的MFR范围为40g/10min;
所述熔喷PP料的MFR范围为1800g/10min;
所述改性填料的制备方法为:将微细二氧化硅气凝胶、纳米碳酸钙、三聚氰胺、木质素磺酸钠、十二烷基苯磺酸钠加入球磨机中进行球磨,控制球磨时的球料比为12:1,转速为350rpm,时间为35min,球磨结束进行紫外-超声处理,控制紫外-超声处理中紫外灯的功率为320W,紫外灯中心波长为360nm,超声波的输出功率为400W,紫外-超声处理时间为25min,紫外-超声处理结束,得到改性填料;
其中,微细二氧化硅气凝胶、纳米碳酸钙、三聚氰胺、木质素磺酸钠、十二烷基苯磺酸钠的重量比为5:20:7:6:2;
所述纳米碳酸钙的粒径为80nm;
所述改性液的组成,按重量份计,包括:5份聚乙烯醇,4份聚乙烯吡咯烷酮,2份明矾,0.3份聚乙烯亚胺,35份去离子水;
其中,初级纺粘无纺布与改性液的重量比为1:2.3。
2.制备熔喷无纺布:将熔喷PP料、聚乙烯蜡、纳米电气石粉、包覆粉末按照重量比为75:4:9:8投入混料机中,经过混料后,进行熔融挤压、熔体过滤、熔体计量后,经热气流超倍牵伸后,纤维冷却固化沉积于集网装置上,收卷成网,即得到熔喷无纺布;
所述包覆粉末的制备方法为:将纳米氧化铝、黄原胶、聚乙二醇1500、纳米氮化硼混合后加入球磨机中进行球磨,控制球磨时的球料比为12:1,转速为320rpm,时间为35min,球磨结束后得到混合粉,将混合粉置于包裹液中,进行超声震荡,控制超声震荡的频率为40kHz,功率为400W,时间为35min,超声震荡结束,得到浆料,将浆料置于75℃下烘至质量不再发生变化,得到包覆粉末;
其中,纳米氧化铝、黄原胶、聚乙二醇1500、纳米氮化硼的重量比为25:5:6:4;
其中,混合粉与包裹液的重量比为10:4;
所述包裹液的组成,按重量份计,包括:4份硅烷偶联剂KH540,3份阿拉伯胶,2份1,2-丙二醇,3份葡聚糖,15份去离子水。
所述纳米氧化铝的粒径为200nm;
所述纳米氮化硼的粒径为100nm;
所述熔喷PP料的MFR范围为1400g/10min;
所述纳米电气石粉的粒径为120nm。
3.制备改性液:将透明质酸、山梨酸、硝酸银、十二烷基二甲基甜菜碱、甲酸、明胶、去离子水按照重量比为7:2:0.5:2:6:2:38混合均匀,在55℃下以120rpm的搅拌速度搅拌25min,得到初级改性液,对初级改性液进行微波改性,控制微波改性的功率为450W,时间为6min,微波改性结束得到改性液;
所述透明质酸的重均分子量为120万。
4.复合:所述复合,将改性液喷淋至纺粘无纺布,控制喷淋速度为220mL/min,改性液的用量为320mL/m2,喷淋结束后置于45℃下干燥2h,得到喷淋后的纺粘无纺布,然后向喷淋后的纺粘无纺布喷热熔胶,控制热熔胶的上胶量为5g/m,得到喷胶后的纺粘无纺布,将喷胶后的纺粘无纺布与熔喷无纺布进行复合,得到SM无纺布。
对比例1
采用实施例1所述的卫生材料用SM材料的制备方法,其不同之处在于:第1步制备纺粘无纺布步骤中使用纳米碳酸钙代替改性填料。
对比例2
采用实施例1所述的卫生材料用SM材料的制备方法,其不同之处在于:第2步制备熔喷无纺布步骤中省略包覆粉末的加入。
对比例3
采用实施例1所述的卫生材料用SM材料的制备方法,其不同之处在于:省略第3步制备改性液,及第4步复合步骤中省略将改性液喷淋至纺粘无纺布,即直接对纺粘无纺布喷热熔胶后,与熔喷无纺布复合。
对比例4
采用实施例1所述的卫生材料用SM材料的制备方法中第2步制备熔喷无纺布步骤制备的熔喷无纺布。
试验例1
对实施例1-3和对比例1-3制备的卫生材料用SM材料的透气均值、水蒸气透过量、抓取强度、撕裂强度、柔软度、CV值进行测试,测试结果如下:
除非另有说明,本发明中所采用的百分数均为质量百分数。
最后应说明的是:以上所述仅为本发明的优选实施例而已,并不用于限制本发明,尽管参照前述实施例对本发明进行了详细的说明,对于本领域的技术人员来说,其依然可以对前述各实施例所记载的技术方案进行修改,或者对其中部分技术特征进行等同替换。凡在本发明的精神和原则之内,所作的任何修改、等同替换、改进等,均应包含在本发明的保护范围之内。
Claims (10)
1.一种卫生材料用SM材料的制备方法,其特征在于,包括:制备纺粘无纺布,制备熔喷无纺布,制备改性液,复合;
所述制备纺粘无纺布,将PP料、熔喷PP料、改性填料、氧化聚乙烯蜡、白油按照重量比为68-70:3-5:10-12:2-4:1-3投入混料机中,经过混料后,进行熔融挤压、熔体过滤、熔体计量、纺丝、冷却、气流牵引、成网、热轧粘合后得到初级纺粘无纺布,然后将初级纺粘无纺布浸入改性液中,在30-35℃下静置20-25min,得到浸泡后的初级纺粘无纺布,然后将浸泡后的初级纺粘无纺布置于50-55℃干燥45-50min,得到纺粘无纺布。
2.根据权利要求1所述的卫生材料用SM材料的制备方法,其特征在于,所述制备纺粘无纺布中,所述PP料的MFR范围为35-40g/10min;
所述制备纺粘无纺布中,所述熔喷PP料的MFR范围为1500-1800g/10min。
3.根据权利要求1所述的卫生材料用SM材料的制备方法,其特征在于,所述改性填料的制备方法为:将微细二氧化硅气凝胶、纳米碳酸钙、三聚氰胺、木质素磺酸钠、十二烷基苯磺酸钠加入球磨机中进行球磨,控制球磨时的球料比为10-12:1,转速为320-350rpm,时间为30-35min,球磨结束进行紫外-超声处理,控制紫外-超声处理中紫外灯的功率为300-320W,紫外灯中心波长为340-360nm,超声波的输出功率为380-400W,紫外-超声处理时间为20-25min,紫外-超声处理结束,得到改性填料;
所述改性填料的制备中,微细二氧化硅气凝胶、纳米碳酸钙、三聚氰胺、木质素磺酸钠、十二烷基苯磺酸钠的重量比为3-5:18-20:3-7:4-6:1-2;
所述改性填料的制备中,所述纳米碳酸钙的粒径为50-80nm。
4.根据权利要求1所述的卫生材料用SM材料的制备方法,其特征在于,所述制备纺粘无纺布中,所述改性液的组成,按重量份计,包括:3-5份聚乙烯醇,2-4份聚乙烯吡咯烷酮,1-2份明矾,0.1-0.3份聚乙烯亚胺,30-35份去离子水。
5.根据权利要求1所述的卫生材料用SM材料的制备方法,其特征在于,所述制备纺粘无纺布中,初级纺粘无纺布与改性液的重量比为1:2-2.3。
6.根据权利要求1所述的卫生材料用SM材料的制备方法,其特征在于,所述制备熔喷无纺布,将熔喷PP料、聚乙烯蜡、纳米电气石粉、包覆粉末按照重量比为70-75:2-4:6-9:5-8投入混料机中,经过混料后,进行熔融挤压、熔体过滤、熔体计量后,经热气流超倍牵伸后,纤维冷却固化沉积于集网装置上,收卷成网,即得到熔喷无纺布。
7.根据权利要求6所述的卫生材料用SM材料的制备方法,其特征在于,所述包覆粉末的制备方法为:将纳米氧化铝、黄原胶、聚乙二醇1500、纳米氮化硼混合后加入球磨机中进行球磨,控制球磨时的球料比为10-12:1,转速为300-320rpm,时间为30-35min,球磨结束后得到混合粉,将混合粉置于包裹液中,进行超声震荡,控制超声震荡的频率为30-40kHz,功率为300-400W,时间为30-35min,超声震荡结束,得到浆料,将浆料置于70-75℃下烘至质量不再发生变化,得到包覆粉末;
所述包覆粉末的制备中,纳米氧化铝、黄原胶、聚乙二醇1500、纳米氮化硼的重量比为22-25:3-5:4-6:2-4;
所述包覆粉末的制备中,混合粉与包裹液的重量比为10:3-4;
所述包裹液的组成,按重量份计,包括:2-4份硅烷偶联剂KH540,1-3份阿拉伯胶,1-2份1,2-丙二醇,1.5-3份葡聚糖,12-15份去离子水;
所述包覆粉末的制备中,所述纳米氧化铝的粒径为180-200nm;
所述包覆粉末的制备中,所述纳米氮化硼的粒径为80-100nm。
8.根据权利要求6所述的卫生材料用SM材料的制备方法,其特征在于,所述制备熔喷无纺布中,所述熔喷PP料的MFR范围为1200-1400g/10min;
所述制备熔喷无纺布中,所述纳米电气石粉的粒径为100-120nm。
9.根据权利要求1所述的卫生材料用SM材料的制备方法,其特征在于,所述制备改性液,将透明质酸、山梨酸、硝酸银、十二烷基二甲基甜菜碱、甲酸、明胶、去离子水按照重量比为5-7:1-2:0.3-0.5:1.5-2:4-6:1-2:36-38混合均匀,在50-55℃下以100-120rpm的搅拌速度搅拌20-25min,得到初级改性液,对初级改性液进行微波改性,控制微波改性的功率为400-450W,时间为4-6min,微波改性结束得到改性液;
所述制备改性液中,所述透明质酸的重均分子量为100-120万。
10.根据权利要求1所述的卫生材料用SM材料的制备方法,其特征在于,所述复合,将改性液喷淋至纺粘无纺布,控制喷淋速度为200-220mL/min,改性液的用量为300-320mL/m2,喷淋结束后置于40-45℃下干燥1.5-2h,得到喷淋后的纺粘无纺布,然后向喷淋后的纺粘无纺布喷热熔胶,控制热熔胶的上胶量为3-5g/m,得到喷胶后的纺粘无纺布,将喷胶后的纺粘无纺布与熔喷无纺布进行复合,得到SM无纺布。
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WO2024040991A1 (zh) * | 2022-08-23 | 2024-02-29 | 东营俊富净化科技有限公司 | 一种卫生材料用sm材料的制备方法 |
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