CN112593407A - 一种绒面型苯乙烯-丁二烯嵌段共聚物基超细纤维合成革及其生产方法 - Google Patents
一种绒面型苯乙烯-丁二烯嵌段共聚物基超细纤维合成革及其生产方法 Download PDFInfo
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- styrene
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- 229920003048 styrene butadiene rubber Polymers 0.000 title claims abstract description 82
- 239000002649 leather substitute Substances 0.000 title claims abstract description 75
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 26
- 239000002131 composite material Substances 0.000 claims abstract description 87
- 239000000463 material Substances 0.000 claims abstract description 75
- 239000004745 nonwoven fabric Substances 0.000 claims abstract description 34
- 239000003513 alkali Substances 0.000 claims abstract description 20
- 238000005516 engineering process Methods 0.000 claims abstract description 15
- 239000002585 base Substances 0.000 claims abstract description 12
- 238000007730 finishing process Methods 0.000 claims abstract description 11
- 238000005507 spraying Methods 0.000 claims abstract description 11
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 66
- 229920000728 polyester Polymers 0.000 claims description 45
- 229920002292 Nylon 6 Polymers 0.000 claims description 20
- 239000013067 intermediate product Substances 0.000 claims description 18
- 238000005406 washing Methods 0.000 claims description 18
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 16
- 238000006386 neutralization reaction Methods 0.000 claims description 12
- 239000011248 coating agent Substances 0.000 claims description 9
- 238000000576 coating method Methods 0.000 claims description 9
- VMNKHSPZIGIPLL-UHFFFAOYSA-N [3-hydroxy-2,2-bis(hydroxymethyl)propyl] dihydrogen phosphite Chemical compound OCC(CO)(CO)COP(O)O VMNKHSPZIGIPLL-UHFFFAOYSA-N 0.000 claims description 8
- 238000001816 cooling Methods 0.000 claims description 8
- 238000001035 drying Methods 0.000 claims description 8
- 239000004088 foaming agent Substances 0.000 claims description 8
- 238000005470 impregnation Methods 0.000 claims description 8
- 239000004408 titanium dioxide Substances 0.000 claims description 8
- 238000007766 curtain coating Methods 0.000 claims description 7
- 230000003472 neutralizing effect Effects 0.000 claims description 6
- 238000001125 extrusion Methods 0.000 claims description 4
- 238000002791 soaking Methods 0.000 claims description 3
- 239000000758 substrate Substances 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 229920001410 Microfiber Polymers 0.000 claims 2
- 239000003658 microfiber Substances 0.000 claims 2
- 238000000889 atomisation Methods 0.000 abstract description 9
- FACXGONDLDSNOE-UHFFFAOYSA-N buta-1,3-diene;styrene Chemical compound C=CC=C.C=CC1=CC=CC=C1.C=CC1=CC=CC=C1 FACXGONDLDSNOE-UHFFFAOYSA-N 0.000 description 80
- 229920000468 styrene butadiene styrene block copolymer Polymers 0.000 description 80
- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 description 14
- 238000002360 preparation method Methods 0.000 description 13
- 239000010985 leather Substances 0.000 description 10
- 238000005096 rolling process Methods 0.000 description 9
- 238000013329 compounding Methods 0.000 description 8
- 238000002347 injection Methods 0.000 description 8
- 239000007924 injection Substances 0.000 description 8
- OSWFIVFLDKOXQC-UHFFFAOYSA-N 4-(3-methoxyphenyl)aniline Chemical compound COC1=CC=CC(C=2C=CC(N)=CC=2)=C1 OSWFIVFLDKOXQC-UHFFFAOYSA-N 0.000 description 7
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 238000005303 weighing Methods 0.000 description 6
- 239000000047 product Substances 0.000 description 5
- 239000012466 permeate Substances 0.000 description 4
- 229920002635 polyurethane Polymers 0.000 description 4
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- 239000002002 slurry Substances 0.000 description 4
- 238000011161 development Methods 0.000 description 3
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- 102000008186 Collagen Human genes 0.000 description 1
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- IZUPBVBPLAPZRR-UHFFFAOYSA-N pentachlorophenol Chemical compound OC1=C(Cl)C(Cl)=C(Cl)C(Cl)=C1Cl IZUPBVBPLAPZRR-UHFFFAOYSA-N 0.000 description 1
- 230000036314 physical performance Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
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Abstract
本发明公开了一种绒面型苯乙烯‑丁二烯嵌段共聚物基超细纤维合成革及其生产方法,涉及超细纤维合成革技术领域。通过采用淋涂和挤压的方式,将苯乙烯‑丁二烯嵌段共聚物物料与海岛纤维非织造布基材渗入复合,得到复合材料;再通过蒸汽碱减量技术处理所得复合材料,得到苯乙烯‑丁二烯嵌段共聚物/超细纤维复合材料;对所得苯乙烯‑丁二烯嵌段共聚物/超细纤维复合材料进行后整理工艺,得到绒面型苯乙烯‑丁二烯嵌段共聚物基超细纤维合成革。本发明技术生产过程清洁环保,所得产品手感柔软丰满,雾化值小于4mg,气味小于3级,可作为鞋面材料,与SBS注塑鞋底具有很好的粘合强度,可生产高性能的防滑运动鞋,也可作为汽车座椅的环保蒙皮材料。
Description
技术领域
本发明属于超细纤维合成革技术领域,涉及一种绒面型苯乙烯-丁二烯嵌段共聚物基超细纤维合成革及其生产方法。
背景技术
由于用来生产天然皮革的原料皮资源有限,而且天然皮革的生产是一个高能耗、高污染的过程,会给环境带来极大的污染负荷。近年来,人们对天然皮革本身的安全性也提出了新的标准,严格限制天然皮革中存在的Cr(Ⅵ)、偶氮染料、五氯苯酚(PCP)及游离甲醛等有毒化学品。从原料皮资源、环境保护、产品安全和市场的角度来看,天然皮革的生产和使用都面临着极大的挑战。
基于以上原因,世界各国都在加速开发新的代替天然皮革的新材料。其中超细纤维合成革的开发,堪称新材料互相结合的典范。超细纤维合成革是以超细纤维非织造为基材,浸渍具有开孔结构的聚氨酯浆料,经一系列复杂工艺加工而成。由于超细纤维的直径几乎达到纳米级尺寸,有巨大的比表面积,与天然皮革中的束状胶原纤维极其相似,在物理性能方面可以与天然皮革相媲美,它完成了由“仿制”到“变换”的过程,成为代替天然皮革的最佳材料。
然而由于原料皮的短缺和环境污染问题,皮革工业的持续衰退已经不可避免。因此,开发高性能的超细纤维合成革成为研究工作重点。
目前,运动鞋材是超细纤维合成革最大的应用领域之一,特别是近年来兴起的防滑型高级运动鞋,采用苯乙烯-丁二烯嵌段共聚物(SBS)注塑鞋底,现有的聚氨酯造面的超细纤维合成革难以和SBS鞋底粘合,成为了一个瓶颈性的技术难题。
发明内容
为了克服上述现有技术的缺点,本发明的目的在于提供一种绒面型苯乙烯-丁二烯嵌段共聚物基超细纤维合成革及其生产方法,解决了现有聚氨酯造面的超细纤维合成革难以和苯乙烯-丁二烯嵌段共聚物基材料有效粘合的问题。
为了达到上述目的,本发明采用以下技术方案予以实现:
本发明公开了一种绒面型苯乙烯-丁二烯嵌段共聚物基超细纤维合成革的生产方法,包括:先采用淋涂技术,将苯乙烯-丁二烯嵌段共聚物物料淋涂于海岛纤维非织造布基材上,然后采用挤压技术,使苯乙烯-丁二烯嵌段共聚物物料渗入海岛纤维非织造布基材中,冷却后得到复合材料;采用蒸汽碱减量技术处理所得复合材料,得到苯乙烯-丁二烯嵌段共聚物/超细纤维复合材料;对所得苯乙烯-丁二烯嵌段共聚物/超细纤维复合材料进行后整理工艺,得到绒面型苯乙烯-丁二烯嵌段共聚物基超细纤维合成革。
优选地,苯乙烯-丁二烯嵌段共聚物物料的配方为:以质量份数计,苯乙烯-丁二烯嵌段共聚物50~80份,色粉1~5份,AC发泡剂0.2~1.8份,10号白油5~15份,钛白粉1~3份,季戊四醇亚磷酸酯0.1~0.2份。
优选地,海岛纤维非织造布基材为尼龙6/碱溶性聚酯海岛纤维非织造布或聚酯/碱溶性聚酯海岛纤维非织造布。
优选地,淋涂技术的具体操作为:将苯乙烯-丁二烯嵌段共聚物经物料螺杆机后从狭缝模头挤出,淋涂在海岛纤维非织造布基材上;挤压技术的具体操作通过轧棍挤压实现。
进一步优选地,螺杆机的温度为160℃~190℃。
优选地,蒸汽碱减量技术的具体操作包括:
先将所得复合材料于碱液槽中浸渍后通过轧棍进行挤压,然后通过蒸汽烘箱进行减量操作,减量操作后通过中和槽中和,中和后通过水洗槽水洗,水洗结束后得到复合材料中间产物,将所得复合材料中间产物通过烘箱干燥后,得到苯乙烯-丁二烯嵌段共聚物/超细纤维复合材料。
进一步优选地,碱液槽中含有5%~10%的氢氧化钠,碱液槽中碱液的浸渍量为所得复合材料质量的80%~90%。
进一步优选地,中和槽中含有5%~10%甲酸。
进一步优选地,蒸汽烘箱的温度为90℃~95℃,减量时间为20~40min。
进一步优选地,得到复合材料中间产物的pH值为6.5~7.5。
本发明还公开了采用上述生产方法制得的一种绒面型苯乙烯-丁二烯嵌段共聚物基超细纤维合成革。
与现有技术相比,本发明具有以下有益效果:
本发明公开了一种绒面型苯乙烯-丁二烯嵌段共聚物基超细纤维合成革的生产方法,通过采用淋涂和挤压的方式,将苯乙烯-丁二烯嵌段共聚物(简称SBS)熔融浆料与海岛纤维非织造布基材渗入复合,得到复合材料;再通过蒸汽碱减量技术和后整理工艺,以此成功制得绒面型苯乙烯-丁二烯嵌段共聚物基超细纤维合成革。因此,本发明所述的技术生产过程清洁环保,适合工业生产中推广使用。
进一步地,本发明所述制备方法能够用于尼龙6(PA6)/碱溶性聚酯(COPET)海岛纤维非织造布或聚酯(PET)/碱溶性聚酯(COPET)海岛纤维非织造布作为海岛纤维非织造布基材。
进一步地,本发明采用螺杆机和狭缝模头,实施淋涂复合技术,有效的解决了高粘度浆料和纤维基材的复合难题。
本发明还公开了采用上述生产方法制得的绒面型苯乙烯-丁二烯嵌段共聚物基超细纤维合成革,利用其中所含苯乙烯-丁二烯嵌段共聚物组分与现有苯乙烯-丁二烯嵌段共聚物基制品具有相同的主链结构组成、而具有高度相容性,有效解决了现有聚氨酯造面的超细纤维合成革难以和苯乙烯-丁二烯嵌段共聚物有效粘合的问题。本发明制得的绒面型苯乙烯-丁二烯嵌段共聚物基超细纤维合成革产品,具有手感柔软丰满、雾化值小于4mg、气味小于3级的性能特点,因此可作为鞋面材料,实现与SBS注塑鞋底良好粘合,可生产高性能的防滑运动鞋,也可作为汽车座椅的环保蒙皮材料。
具体实施方式
为了使本技术领域的人员更好地理解本发明方案,下面将结合本发明实施例,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的实施例,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,都应当属于本发明保护的范围。
需要说明的是,本发明的说明书和权利要求书中的术语“第一”、“第二”等是用于区别类似的对象,而不必用于描述特定的顺序或先后次序。应该理解这样使用的数据在适当情况下可以互换,以便这里描述的本发明的实施例能够以除了在这里描述的那些以外的顺序实施。此外,术语“包括”和“具有”以及他们的任何变形,意图在于覆盖不排他的包含,例如,包含了一系列步骤或单元的过程、方法、系统、产品或设备不必限于清楚地列出的那些步骤或单元,而是可包括没有清楚地列出的或对于这些过程、方法、产品或设备固有的其它步骤或单元。
下面结合具体实施例对本发明做详细说明:
实施例1
1)苯乙烯-丁二烯嵌段共聚物(SBS)物料的制备
以质量份数计,称取SBS 50份,色粉1份,AC发泡剂0.2份,10号白油5份,钛白粉1份,季戊四醇亚磷酸酯0.1份,混合得到SBS物料。
2)绒面型苯乙烯-丁二烯嵌段共聚物基超细纤维合成革的制备
①淋涂复合:采用螺杆机和狭缝模头,控制螺杆机内温度在160℃,将步骤1)所得SBS物料经过螺杆机后从狭缝模头挤出,淋涂在尼龙6/碱溶性聚酯海岛纤维非织造布(尼龙6(PA6)/碱溶性聚酯(COPET)海岛纤维非织造布)上,在通过一对轧棍的挤压,使SBS物料渗入尼龙6/碱溶性聚酯海岛纤维非织造布中,冷却后得到复合材料;
②蒸汽碱减量:将步骤①所得复合材料通过含有5%(w/w)氢氧化钠的碱液槽后,通过轧棍进行挤压,其中,控制碱液槽中碱液的浸渍量为步骤①所得复合材料质量的80%;然后继续通过蒸汽烘箱,控制蒸汽温度在90℃,减量20min,减量结束后继续通过含有5%(w/w)甲酸的中和槽中和,中和后再通过水洗槽水洗,得到复合材料中间产物,使所得复合材料中间产物的pH值降到6.5后,再继续通过烘箱干燥,即可得到苯乙烯-丁二烯嵌段共聚物/超细纤维复合材料(SBS/PA6超细纤维复合材料);
③后整理:将步骤②所得苯乙烯-丁二烯嵌段共聚物/超细纤维复合材料(SBS/PA6超细纤维复合材料)经过剖层、磨皮、摔软等后整理工艺,即可得到绒面型SBS基超细纤维合成革。
本实施例制得的绒面型苯乙烯-丁二烯嵌段共聚物(SBS)基超细纤维合成革,手感柔软丰满,其雾化值小于4mg,其气味小于3级,可作为鞋面材料,与SBS注塑鞋底具有很好的粘合强度,可生产高性能的防滑运动鞋,也可作为汽车座椅的环保蒙皮材料。
实施例2
1)苯乙烯-丁二烯嵌段共聚物(SBS)物料的制备
以质量份数计,称取SBS 50份,色粉1份,AC发泡剂0.2份,10号白油5份,钛白粉1份,季戊四醇亚磷酸酯0.1份,混合得到SBS物料。
2)绒面型苯乙烯-丁二烯嵌段共聚物基超细纤维合成革的制备
①淋涂复合:采用螺杆机和狭缝模头,控制螺杆机内温度在160℃,将步骤1)所得SBS物料经过螺杆机后从狭缝模头挤出,淋涂在聚酯/碱溶性聚酯海岛纤维非织造布(聚酯(PET)/碱溶性聚酯(COPET)海岛纤维非织造布)上,在通过一对轧棍的挤压,使SBS物料渗入聚酯/碱溶性聚酯海岛纤维非织造布中,冷却后得到复合材料;
②蒸汽碱减量:将步骤①所得复合材料通过含有5%(w/w)氢氧化钠的碱液槽后,通过轧棍进行挤压,其中,控制碱液槽中碱液的浸渍量为步骤①所得复合材料质量的80%;然后继续通过蒸汽烘箱,控制蒸汽温度在90℃,减量20min,减量结束后继续通过含有5%(w/w)甲酸的中和槽中和,中和后再通过水洗槽水洗,得到复合材料中间产物,使所得复合材料中间产物的pH值降到6.5后,再继续通过烘箱干燥,即可得到苯乙烯-丁二烯嵌段共聚物/超细纤维复合材料(SBS/PET超细纤维复合材料);
③后整理:将步骤②所得苯乙烯-丁二烯嵌段共聚物/超细纤维复合材料(SBS/PET超细纤维复合材料)经过剖层、磨皮、摔软等后整理工艺,即可得到绒面型SBS基超细纤维合成革。
本实施例制得的绒面型苯乙烯-丁二烯嵌段共聚物(SBS)基超细纤维合成革,手感柔软丰满,其雾化值小于4mg,其气味小于3级,可作为鞋面材料,与SBS注塑鞋底具有很好的粘合强度,可生产高性能的防滑运动鞋,也可作为汽车座椅的环保蒙皮材料。
实施例3
1)苯乙烯-丁二烯嵌段共聚物(SBS)物料的制备
以质量份数计,称取SBS 80份,色粉5份,AC发泡剂1.8份,10号白油15份,钛白粉3份,季戊四醇亚磷酸酯0.2份,混合得到SBS物料。
2)绒面型苯乙烯-丁二烯嵌段共聚物基超细纤维合成革的制备
①淋涂复合:采用螺杆机和狭缝模头,控制螺杆机内温度在190℃,将步骤1)所得SBS物料经过螺杆机后从狭缝模头挤出,淋涂在尼龙6/碱溶性聚酯海岛纤维非织造布上,在通过一对轧棍的挤压,使SBS物料渗入尼龙6/碱溶性聚酯海岛纤维非织造布中,冷却后得到复合材料;
②蒸汽碱减量:将步骤①所得复合材料通过含有10%(w/w)氢氧化钠的碱液槽后,通过轧棍进行挤压,其中,控制碱液槽中碱液的浸渍量为步骤①所得复合材料质量的90%;然后继续通过蒸汽烘箱,控制蒸汽温度在95℃,减量40min,减量结束后继续通过含有10%(w/w)甲酸的中和槽中和,中和后再通过水洗槽水洗,得到复合材料中间产物,使所得复合材料中间产物的pH值降到7.5后,再继续通过烘箱干燥,即可得到苯乙烯-丁二烯嵌段共聚物/超细纤维复合材料(SBS/PA6超细纤维复合材料);
③后整理:将步骤②所得苯乙烯-丁二烯嵌段共聚物/超细纤维复合材料(SBS/PA6超细纤维复合材料)经过剖层、磨皮、摔软等后整理工艺,即可得到绒面型SBS基超细纤维合成革。
本实施例制得的绒面型苯乙烯-丁二烯嵌段共聚物(SBS)基超细纤维合成革,手感柔软丰满,其雾化值小于4mg,其气味小于3级,可作为鞋面材料,与SBS注塑鞋底具有很好的粘合强度,可生产高性能的防滑运动鞋,也可作为汽车座椅的环保蒙皮材料。
实施例4
1)苯乙烯-丁二烯嵌段共聚物(SBS)物料的制备
以质量份数计,称取SBS 80份,色粉5份,AC发泡剂1.8份,10号白油15份,钛白粉3份,季戊四醇亚磷酸酯0.2份,混合得到SBS物料。
2)绒面型苯乙烯-丁二烯嵌段共聚物基超细纤维合成革的制备
①淋涂复合:采用螺杆机和狭缝模头,控制螺杆机内温度在190℃,将步骤1)所得SBS物料经过螺杆机后从狭缝模头挤出,淋涂在聚酯/碱溶性聚酯海岛纤维非织造布上,在通过一对轧棍的挤压,使SBS物料渗入聚酯/碱溶性聚酯海岛纤维非织造布中,冷却后得到复合材料;
②蒸汽碱减量:将步骤①所得复合材料通过含有10%(w/w)氢氧化钠的碱液槽后,通过轧棍进行挤压,其中,控制碱液槽中碱液的浸渍量为步骤①所得复合材料质量的90%;然后继续通过蒸汽烘箱,控制蒸汽温度在95℃之间,减量40min,减量结束后继续通过含有10%(w/w)甲酸的中和槽中和,中和后再通过水洗槽水洗,得到复合材料中间产物,使所得复合材料中间产物的pH值降到7.5后,再继续通过烘箱干燥,即可得到苯乙烯-丁二烯嵌段共聚物/超细纤维复合材料(SBS/PET超细纤维复合材料);
③后整理:将步骤②所得苯乙烯-丁二烯嵌段共聚物/超细纤维复合材料(SBS/PET超细纤维复合材料)经过剖层、磨皮、摔软等后整理工艺,即可得到绒面型SBS基超细纤维合成革。
本实施例制得的绒面型苯乙烯-丁二烯嵌段共聚物(SBS)基超细纤维合成革,手感柔软丰满,其雾化值小于4mg,其气味小于3级,可作为鞋面材料,与SBS注塑鞋底具有很好的粘合强度,可生产高性能的防滑运动鞋,也可作为汽车座椅的环保蒙皮材料。
实施例5
1)苯乙烯-丁二烯嵌段共聚物(SBS)物料的制备
以质量份数计,称取SBS 68份,色粉2份,AC发泡剂1.4份,10号白油9份,钛白粉1.8份,季戊四醇亚磷酸酯0.16份,混合得到SBS物料。
2)绒面型苯乙烯-丁二烯嵌段共聚物基超细纤维合成革的制备
①淋涂复合:采用螺杆机和狭缝模头,控制螺杆机内温度在178℃,将步骤1)所得SBS物料经过螺杆机后从狭缝模头挤出,淋涂在尼龙6/碱溶性聚酯海岛纤维非织造布上,在通过一对轧棍的挤压,使SBS物料渗入尼龙6/碱溶性聚酯海岛纤维非织造布中,冷却后得到复合材料;
②蒸汽碱减量:将步骤①所得复合材料通过含有8%(w/w)氢氧化钠的碱液槽后,通过轧棍进行挤压,其中,控制碱液槽中碱液的浸渍量为步骤①所得复合材料质量的82%;然后继续通过蒸汽烘箱,控制蒸汽温度在92℃,减量35min,减量结束后继续通过含有8%(w/w)甲酸的中和槽中和,中和后再通过水洗槽水洗,得到复合材料中间产物,使所得复合材料中间产物的pH值降到7后,再继续通过烘箱干燥,即可得到苯乙烯-丁二烯嵌段共聚物/超细纤维复合材料(SBS/PA6超细纤维复合材料);
③后整理:将步骤②所得苯乙烯-丁二烯嵌段共聚物/超细纤维复合材料(SBS/PA6超细纤维复合材料)经过剖层、磨皮、摔软等后整理工艺,即可得到绒面型SBS基超细纤维合成革。
本实施例制得的绒面型苯乙烯-丁二烯嵌段共聚物(SBS)基超细纤维合成革,手感柔软丰满,其雾化值小于4mg,其气味小于3级,可作为鞋面材料,与SBS注塑鞋底具有很好的粘合强度,可生产高性能的防滑运动鞋,也可作为汽车座椅的环保蒙皮材料。
实施例6
1)苯乙烯-丁二烯嵌段共聚物(SBS)物料的制备
以质量份数计,称取SBS 52份,色粉4份,AC发泡剂0.9份,10号白油12份,钛白粉2.3份,季戊四醇亚磷酸酯0.13份,混合得到SBS物料。
2)绒面型苯乙烯-丁二烯嵌段共聚物基超细纤维合成革的制备
①淋涂复合:采用螺杆机和狭缝模头,控制螺杆机内温度在163℃,将步骤1)所得SBS物料经过螺杆机后从狭缝模头挤出,淋涂在聚酯/碱溶性聚酯海岛纤维非织造布上,在通过一对轧棍的挤压,使SBS物料渗入聚酯/碱溶性聚酯海岛纤维非织造布中,冷却后得到复合材料;
②蒸汽碱减量:将步骤①所得复合材料通过含有7%(w/w)氢氧化钠的碱液槽后,通过轧棍进行挤压,其中,控制碱液槽中碱液的浸渍量为步骤①所得复合材料质量的87%;然后继续通过蒸汽烘箱,控制蒸汽温度在94℃,减量35min,减量结束后继续通过含有6%(w/w)甲酸的中和槽中和,中和后再通过水洗槽水洗,得到复合材料中间产物,使所得复合材料中间产物的pH值降到7.2后,再继续通过烘箱干燥,即可得到苯乙烯-丁二烯嵌段共聚物/超细纤维复合材料(SBS/PET超细纤维复合材料);
③后整理:将步骤②所得苯乙烯-丁二烯嵌段共聚物/超细纤维复合材料(SBS/PET超细纤维复合材料)经过剖层、磨皮、摔软等后整理工艺,即可得到绒面型SBS基超细纤维合成革。
本实施例制得的绒面型苯乙烯-丁二烯嵌段共聚物(SBS)基超细纤维合成革,手感柔软丰满,其雾化值小于4mg,其气味小于3级,可作为鞋面材料,与SBS注塑鞋底具有很好的粘合强度,可生产高性能的防滑运动鞋,也可作为汽车座椅的环保蒙皮材料。
综上所述,本发明涉及超细纤维合成革技术领域,特别涉及一种绒面型SBS基超细纤维合成革及其生产方法。该发明以尼龙6(PA6)/碱溶性聚酯(COPET)海岛纤维非织造布或聚酯/碱溶性聚酯海岛纤维非织造布为海岛纤维非织造布基材,采用淋涂和挤压的方式,将苯乙烯-丁二烯嵌段共聚物(简称SBS)熔融浆料与海岛纤维非织造布基材复合,得到SBS/海岛纤维非织造超细的复合材料。再通过蒸汽碱减量技术和后整理工艺,得到绒面型SBS基超细纤维合成革。本发明技术生产过程清洁环保,本发明制得的绒面型SBS基超细纤维合成革产品手感柔软丰满,雾化值小于4mg,气味小于3级,可作为鞋面材料,与SBS注塑鞋底具有很好的粘合强度,可生产高性能的防滑运动鞋,也可作为汽车座椅的环保蒙皮材料。
以上内容仅为说明本发明的技术思想,不能以此限定本发明的保护范围,凡是按照本发明提出的技术思想,在技术方案基础上所做的任何改动,均落入本发明权利要求书的保护范围之内。
Claims (10)
1.一种绒面型苯乙烯-丁二烯嵌段共聚物基超细纤维合成革的生产方法,其特征在于,包括:先采用淋涂技术,将苯乙烯-丁二烯嵌段共聚物物料淋涂于海岛纤维非织造布基材上,然后采用挤压技术,使苯乙烯-丁二烯嵌段共聚物物料渗入海岛纤维非织造布基材中,冷却后得到复合材料;采用蒸汽碱减量技术处理所得复合材料,得到苯乙烯-丁二烯嵌段共聚物/超细纤维复合材料;对所得苯乙烯-丁二烯嵌段共聚物/超细纤维复合材料进行后整理工艺,得到绒面型苯乙烯-丁二烯嵌段共聚物基超细纤维合成革。
2.根据权利要求1所述的一种绒面型苯乙烯-丁二烯嵌段共聚物基超细纤维合成革的生产方法,其特征在于,苯乙烯-丁二烯嵌段共聚物物料的配方为:以质量份数计,苯乙烯-丁二烯嵌段共聚物50~80份,色粉1~5份,AC发泡剂0.2~1.8份,10号白油5~15份,钛白粉1~3份,季戊四醇亚磷酸酯0.1~0.2份。
3.根据权利要求1所述的一种绒面型苯乙烯-丁二烯嵌段共聚物基超细纤维合成革的生产方法,其特征在于,海岛纤维非织造布基材为尼龙6/碱溶性聚酯海岛纤维非织造布或聚酯/碱溶性聚酯海岛纤维非织造布。
4.根据权利要求1所述的一种绒面型苯乙烯-丁二烯嵌段共聚物基超细纤维合成革的生产方法,其特征在于,淋涂技术的具体操作为:将苯乙烯-丁二烯嵌段共聚物经物料螺杆机后从狭缝模头挤出,淋涂在海岛纤维非织造布基材上。
5.根据权利要求4所述的一种绒面型苯乙烯-丁二烯嵌段共聚物基超细纤维合成革的生产方法,其特征在于,螺杆机的温度为160℃~190℃。
6.根据权利要求1所述的一种绒面型苯乙烯-丁二烯嵌段共聚物基超细纤维合成革的生产方法,其特征在于,蒸汽碱减量技术的具体操作包括:
先将所得复合材料于碱液槽中浸渍后通过轧棍进行挤压,然后通过蒸汽烘箱进行减量操作,减量操作后通过中和槽中和,中和后通过水洗槽水洗,水洗结束后得到复合材料中间产物,将所得复合材料中间产物通过烘箱干燥后,得到苯乙烯-丁二烯嵌段共聚物/超细纤维复合材料。
7.根据权利要求6所述的一种绒面型苯乙烯-丁二烯嵌段共聚物基超细纤维合成革的生产方法,其特征在于,碱液槽中含有5%~10%氢氧化钠,碱液槽中碱液的浸渍量为所得复合材料质量的80%~90%。
8.根据权利要求6所述的一种绒面型苯乙烯-丁二烯嵌段共聚物基超细纤维合成革的生产方法,其特征在于,蒸汽烘箱的温度为90℃~95℃,减量时间为20~40min。
9.根据权利要求6所述的一种绒面型苯乙烯-丁二烯嵌段共聚物基超细纤维合成革的生产方法,其特征在于,得到复合材料中间产物的pH值为6.5~7.5。
10.采用权利要求1~9任意一项所述生产方法制得的一种绒面型苯乙烯-丁二烯嵌段共聚物基超细纤维合成革。
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