CN115450057A - 一种耐腐蚀仿皮面料的制备方法 - Google Patents
一种耐腐蚀仿皮面料的制备方法 Download PDFInfo
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- 239000004744 fabric Substances 0.000 title claims abstract description 61
- 239000010985 leather Substances 0.000 title claims abstract description 58
- 238000005260 corrosion Methods 0.000 title claims abstract description 37
- 230000007797 corrosion Effects 0.000 title claims abstract description 35
- 238000002360 preparation method Methods 0.000 title claims abstract description 15
- 239000000843 powder Substances 0.000 claims abstract description 52
- 239000004814 polyurethane Substances 0.000 claims abstract description 35
- 229920002635 polyurethane Polymers 0.000 claims abstract description 34
- 239000002002 slurry Substances 0.000 claims abstract description 27
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims abstract description 23
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims abstract description 23
- 238000003756 stirring Methods 0.000 claims abstract description 23
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 23
- 238000001035 drying Methods 0.000 claims abstract description 20
- 239000002131 composite material Substances 0.000 claims abstract description 18
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 16
- 229920001730 Moisture cure polyurethane Polymers 0.000 claims abstract description 16
- 239000011248 coating agent Substances 0.000 claims abstract description 16
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract description 16
- 238000000576 coating method Methods 0.000 claims abstract description 13
- 108010073771 Soybean Proteins Proteins 0.000 claims abstract description 11
- 239000012065 filter cake Substances 0.000 claims abstract description 11
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- 239000003795 chemical substances by application Substances 0.000 claims abstract description 10
- 239000002250 absorbent Substances 0.000 claims abstract description 9
- 230000002745 absorbent Effects 0.000 claims abstract description 9
- 239000008367 deionised water Substances 0.000 claims abstract description 9
- 229910021641 deionized water Inorganic materials 0.000 claims abstract description 9
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- 238000001132 ultrasonic dispersion Methods 0.000 claims abstract description 6
- 229940001941 soy protein Drugs 0.000 claims abstract description 3
- 238000006243 chemical reaction Methods 0.000 claims description 26
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 24
- 238000000034 method Methods 0.000 claims description 23
- VSCWAEJMTAWNJL-UHFFFAOYSA-K aluminium trichloride Chemical compound Cl[Al](Cl)Cl VSCWAEJMTAWNJL-UHFFFAOYSA-K 0.000 claims description 16
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 claims description 15
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims description 14
- WERYXYBDKMZEQL-UHFFFAOYSA-N butane-1,4-diol Chemical compound OCCCCO WERYXYBDKMZEQL-UHFFFAOYSA-N 0.000 claims description 14
- 239000000084 colloidal system Substances 0.000 claims description 14
- RTZKZFJDLAIYFH-UHFFFAOYSA-N ether Substances CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 13
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 12
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims description 12
- 239000006185 dispersion Substances 0.000 claims description 11
- 238000010438 heat treatment Methods 0.000 claims description 11
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 10
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- 229920000909 polytetrahydrofuran Polymers 0.000 claims description 7
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- QAOWNCQODCNURD-UHFFFAOYSA-N sulfuric acid Substances OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 7
- JVYDLYGCSIHCMR-UHFFFAOYSA-N 2,2-bis(hydroxymethyl)butanoic acid Chemical compound CCC(CO)(CO)C(O)=O JVYDLYGCSIHCMR-UHFFFAOYSA-N 0.000 claims description 6
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 claims description 6
- PIICEJLVQHRZGT-UHFFFAOYSA-N Ethylenediamine Chemical compound NCCN PIICEJLVQHRZGT-UHFFFAOYSA-N 0.000 claims description 5
- UKLDJPRMSDWDSL-UHFFFAOYSA-L [dibutyl(dodecanoyloxy)stannyl] dodecanoate Chemical compound CCCCCCCCCCCC(=O)O[Sn](CCCC)(CCCC)OC(=O)CCCCCCCCCCC UKLDJPRMSDWDSL-UHFFFAOYSA-L 0.000 claims description 5
- 239000012975 dibutyltin dilaurate Substances 0.000 claims description 5
- FAHBNUUHRFUEAI-UHFFFAOYSA-M hydroxidooxidoaluminium Chemical compound O[Al]=O FAHBNUUHRFUEAI-UHFFFAOYSA-M 0.000 claims description 5
- IQPQWNKOIGAROB-UHFFFAOYSA-N isocyanate group Chemical group [N-]=C=O IQPQWNKOIGAROB-UHFFFAOYSA-N 0.000 claims description 5
- 238000006386 neutralization reaction Methods 0.000 claims description 5
- 229910052757 nitrogen Inorganic materials 0.000 claims description 5
- 239000012295 chemical reaction liquid Substances 0.000 claims description 4
- 239000005058 Isophorone diisocyanate Substances 0.000 claims description 3
- 239000013530 defoamer Substances 0.000 claims description 3
- NIMLQBUJDJZYEJ-UHFFFAOYSA-N isophorone diisocyanate Chemical compound CC1(C)CC(N=C=O)CC(C)(CN=C=O)C1 NIMLQBUJDJZYEJ-UHFFFAOYSA-N 0.000 claims description 3
- -1 ether diol Chemical class 0.000 claims 1
- 239000002649 leather substitute Substances 0.000 abstract description 4
- 239000010410 layer Substances 0.000 description 8
- 239000004721 Polyphenylene oxide Substances 0.000 description 4
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 4
- 238000002485 combustion reaction Methods 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- 150000001875 compounds Chemical class 0.000 description 4
- 229920000570 polyether Polymers 0.000 description 4
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- 229910052710 silicon Inorganic materials 0.000 description 4
- 239000010703 silicon Substances 0.000 description 4
- 238000004898 kneading Methods 0.000 description 3
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 description 2
- VXAUWWUXCIMFIM-UHFFFAOYSA-M aluminum;oxygen(2-);hydroxide Chemical compound [OH-].[O-2].[Al+3] VXAUWWUXCIMFIM-UHFFFAOYSA-M 0.000 description 2
- 230000000844 anti-bacterial effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 229910021389 graphene Inorganic materials 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000002344 surface layer Substances 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
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- 230000004075 alteration Effects 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000003670 easy-to-clean Effects 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 235000014347 soups Nutrition 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
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Abstract
本发明公开了一种耐腐蚀仿皮面料的制备方法,属于人造皮革技术领域,将氧化石墨烯粉末和羟基氧化铝粉末加入烧瓶中,然后加入乙醇溶液超声分散,水热反应,过滤,将滤饼洗涤,干燥,粉碎,得到复合物粉末;将大豆蛋白用去离子水分散,然后再加入复合物粉末、色浆、紫外线吸收剂、消泡剂、分散剂和聚氨酯预聚体,剪切分散后加入聚氨酯固化剂搅拌混合,脱泡,得到改性聚氨酯浆料;将改性聚氨酯浆料刮涂在离型纸上,在涂布好的改性聚氨酯浆料上覆上一层基布并以基布作为底层,干燥,揭去离型纸进行压花、揉纹,最后用皮革涂饰剂涂膜,得到耐腐蚀仿皮面料;耐腐蚀仿皮面料具有较好的耐腐蚀性和耐折牢度,同时具有爽滑、柔软的使用体验。
Description
技术领域
本发明属于人造皮革技术领域,具体涉及一种耐腐蚀仿皮面料的制备方法。
背景技术
皮革是经过脱毛和鞣制等处理加工得到的动物皮,具有抵抗腐败的作用,应用广泛。但是动物皮处理工序复杂,容易带有难闻气味,并且高端真皮面料价格昂贵。仿皮面料通常以织物为底基,表面覆膜,光滑美观,耐水性强,易于清洗。仿皮按材料进行区分一般包括PU人造革和PVC人造革,其表面和牛皮相比较很难区分,手感和真皮相比更为柔软舒适,并且价格比真皮便宜,所以应用范围也十分广泛。
在一些特殊使用场景下,所使用的仿皮面料也需要具有相应的功能性。例如餐饮场所带有仿皮面料的座椅等常常容易受到汤汁、油污的侵蚀,加速仿皮面料的腐败。在仿皮面料表层涂布防腐蚀涂层,但是一段时间后就会被磨损殆尽,无法满足使用需求,所以提出一种耐腐蚀仿皮面料的制备方法。
发明内容
本发明的目的在于提供一种耐腐蚀仿皮面料的制备方法,以解决背景技术中的问题。
本发明的目的可以通过以下技术方案实现:
一种耐腐蚀仿皮面料的制备方法,包括如下步骤:
步骤一:在氮气的保护下,将4,4'-二环己基甲烷二异氰酸酯、分子量为2000的聚四氢呋喃醚二醇和2,2-二羟甲基丁酸加入烧瓶中,然后加入二月桂酸二丁基锡,在80-85℃的条件下搅拌反应2.5-3h,然后加入1,4-丁二醇,在70-75℃的条件下继续反应2.5-3h,加入三乙胺中和反应,然后加入乙二胺消耗掉反应体系中的异氰酸酯基团,得到聚氨酯预聚体;
步骤二:将氧化石墨烯粉末和羟基氧化铝粉末加入烧瓶中,然后加入质量分数为50%的乙醇溶液超声分散40-60min,得到分散液;将分散液采用水热反应法,在180℃的条件下反应10-12h,然后过滤反应物,将滤饼洗涤,真空干燥,粉碎,得到复合物粉末;
步骤三:将大豆蛋白用去离子水分散,然后再加入复合物粉末、色浆、紫外线吸收剂、消泡剂、分散剂和聚氨酯预聚体,在20-25℃的条件下剪切分散2-3h,最后加入聚氨酯固化剂搅拌混合,脱泡,得到改性聚氨酯浆料;
步骤四:将改性聚氨酯浆料刮涂在离型纸上,涂布厚度为0.8-1.5mm,在涂布好的改性聚氨酯浆料上覆上一层基布并以基布作为底层,然后转移至烘箱中在160-180℃的条件下进行干燥,干燥后揭去离型纸进行压花、揉纹,最后用皮革涂饰剂涂膜,得到耐腐蚀仿皮面料。
进一步地,步骤一中4,4'-二环己基甲烷二异氰酸酯、聚四氢呋喃醚二醇、2,2-二羟甲基丁酸、1,4-丁二醇的用量比为39g:57g:5.5g:0.35g:2.7g。
进一步地,步骤二中氧化石墨烯粉末、羟基氧化铝粉末和乙醇溶液的用量比为1g:1g:1mL。
进一步地,步骤三中大豆蛋白、去离子水、复合物粉末、色浆、紫外线吸收剂、消泡剂、分散剂、聚氨酯预聚体和聚氨酯固化剂的用量比为10-12g:90g:10-12g:5-8g、0.2-0.3g:0.2-0.8g:0.5g:35-38g:7-8g。
进一步地,色浆为水性皮革色浆。
进一步地,紫外吸收剂的型号为UV-326。
进一步地,消泡剂为聚醚改性有机硅消泡剂。
进一步地,分散剂的型号为A168。
进一步地,聚氨酯固化剂为TDI、IPDI和HDI中的任意一种。
进一步地,氧化石墨烯粉末通过如下步骤制备:
将石墨粉加入烧瓶中,然后向烧瓶中加入浓硫酸和质量分数为85%的磷酸,搅拌5-10min后在冰浴的条件下加入高锰酸钾粉末,升温至20-24℃并搅拌10-12h;将质量分数为25%的过氧化氢溶液预冷至0℃,然后在冰浴的条件下将预冷后的过氧化氢溶液加入烧瓶中,直到反应体系不产生气泡后停止反应,过滤,将滤饼洗涤,干燥,粉碎,得到氧化石墨烯粉末;
进一步地,石墨粉、浓硫酸、磷酸、高锰酸钾粉末和过氧化氢溶液的用量比为1.5g:200mL:23mL:9g:40mL。
进一步地,羟基氧化铝粉末通过如下步骤制备:
将无水氯化铝粉末和无水甲醇加入反应釜中搅拌反应30-50min,将反应液转移至坩埚中,用燃烧炉在180-200℃的条件下加热2-4h,得到羟基氧化铝胶体,然后将羟基氧化铝胶体在室温下通风干燥,粉碎,得到羟基氧化铝粉末。
进一步地,无水氯化铝粉末和无水甲醇的用量比为1g:40mL。
本发明的有益效果:
本发明耐腐蚀仿皮面料具有较好的耐腐蚀性和耐折牢度,同时具有爽滑、柔软的使用体验。其中,无水甲醇和无水氯化铝发生复分解反应,生成氢氧化铝胶体,然后在高温加热的条件下转化为无色的羟基氧化铝胶体,干燥粉碎后得到纳米级的羟基氧化铝粉末,具有较好的分散性和耐酸碱性能;氧化石墨烯具有较好的抗菌能力和耐腐蚀性,以羟基氧化铝为载体通过水热反应制备出复合物粉,有助于氧化石墨烯在聚氨酯预聚体中的分散性能,并且羟基氧化铝在仿皮面料接触明火时脱水生成氧化铝,复合物粉末的添加有利于增加仿皮面料的耐腐蚀性、抗菌性和阻燃性。聚氨酯预聚体用含有大豆蛋白的去离子水搅拌乳化,大豆蛋白起到填充作用,有利于增加改性聚氨酯浆料的黏度和稳定性,防止复合物粉末的添加降低仿皮面料的强度和手感,使制备出的耐腐蚀仿皮面料质感细腻,具有更好柔韧性和舒适度。
具体实施方式
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作出创造性劳动前提下所获得的所有其它实施例,都属于本发明保护的范围。
实施例1
制备复合物粉末,包括如下步骤:
步骤S1:将1.5g石墨粉加入烧瓶中,然后向烧瓶中加入200mL浓硫酸和23mL质量分数为85%的磷酸,搅拌5min后在冰浴的条件下加入9g高锰酸钾粉末,升温至20℃并搅拌10h;将40mL质量分数为25%的过氧化氢溶液预冷至0℃,然后在冰浴的条件下将预冷后的过氧化氢溶液加入烧瓶中,直到反应体系不产生气泡后停止反应,过滤,将滤饼洗涤,干燥,粉碎,得到氧化石墨烯粉末;
步骤S2:将1g无水氯化铝粉末和40mL无水甲醇加入反应釜中搅拌反应30min,将反应液转移至坩埚中,用燃烧炉在180℃的条件下加热2h,得到羟基氧化铝胶体,然后将羟基氧化铝胶体在室温下通风干燥,粉碎,得到羟基氧化铝粉末。
步骤S3:将1g氧化石墨烯粉末和1g羟基氧化铝粉末加入烧瓶中,然后加入1mL质量分数为50%的乙醇溶液超声分散40min,得到分散液;将分散液采用水热反应法,在180℃的条件下反应10h,然后过滤反应物,将滤饼洗涤,真空干燥,粉碎,得到复合物粉末。
实施例2
制备复合物粉末,包括如下步骤:
步骤S1:将1.5g石墨粉加入烧瓶中,然后向烧瓶中加入200mL浓硫酸和23mL质量分数为85%的磷酸,搅拌8min后在冰浴的条件下加入9g高锰酸钾粉末,升温至22℃并搅拌11h;将40mL质量分数为25%的过氧化氢溶液预冷至0℃,然后在冰浴的条件下将预冷后的过氧化氢溶液加入烧瓶中,直到反应体系不产生气泡后停止反应,过滤,将滤饼洗涤,干燥,粉碎,得到氧化石墨烯粉末;
步骤S2:将1g无水氯化铝粉末和40mL无水甲醇加入反应釜中搅拌反应40min,将反应液转移至坩埚中,用燃烧炉在190℃的条件下加热3h,得到羟基氧化铝胶体,然后将羟基氧化铝胶体在室温下通风干燥,粉碎,得到羟基氧化铝粉末。
步骤S3:将1g氧化石墨烯粉末和1g羟基氧化铝粉末加入烧瓶中,然后加入1mL质量分数为50%的乙醇溶液超声分散50min,得到分散液;将分散液采用水热反应法,在180℃的条件下反应11h,然后过滤反应物,将滤饼洗涤,真空干燥,粉碎,得到复合物粉末。
实施例3
制备复合物粉末,包括如下步骤:
步骤S1:将1.5g石墨粉加入烧瓶中,然后向烧瓶中加入200mL浓硫酸和23mL质量分数为85%的磷酸,搅拌10min后在冰浴的条件下加入9g高锰酸钾粉末,升温至24℃并搅拌12h;将40mL质量分数为25%的过氧化氢溶液预冷至0℃,然后在冰浴的条件下将预冷后的过氧化氢溶液加入烧瓶中,直到反应体系不产生气泡后停止反应,过滤,将滤饼洗涤,干燥,粉碎,得到氧化石墨烯粉末;
步骤S2:将1g无水氯化铝粉末和40mL无水甲醇加入反应釜中搅拌反应50min,将反应液转移至坩埚中,用燃烧炉在200℃的条件下加热4h,得到羟基氧化铝胶体,然后将羟基氧化铝胶体在室温下通风干燥,粉碎,得到羟基氧化铝粉末。
步骤S3:将1g氧化石墨烯粉末和1g羟基氧化铝粉末加入烧瓶中,然后加入1mL质量分数为50%的乙醇溶液超声分散60min,得到分散液;将分散液采用水热反应法,在180℃的条件下反应12h,然后过滤反应物,将滤饼洗涤,真空干燥,粉碎,得到复合物粉末。
实施例4
制备耐腐蚀仿皮面料,包括如下步骤:
步骤一:在氮气的保护下,将39g 4,4'-二环己基甲烷二异氰酸酯、57g分子量为2000的聚四氢呋喃醚二醇和5.5g 2,2-二羟甲基丁酸加入烧瓶中,然后加入0.35g二月桂酸二丁基锡,在80℃的条件下搅拌反应2.5h,然后加入1,4-丁二醇,在70℃的条件下继续反应2.5h,加入三乙胺中和反应,然后加入2.7g乙二胺消耗掉反应体系中的异氰酸酯基团,得到聚氨酯预聚体;
步骤二:将10g大豆蛋白用90g去离子水分散,然后再加入10g按实施例1在方法制得的复合物粉末、5g水性皮革色浆、0.2g紫外线吸收剂UV-326、0.2g聚醚改性有机硅消泡剂、0.5g分散剂A168和35g聚氨酯预聚体,在20℃的条件下剪切分散2h,最后加入7g TDI搅拌混合,脱泡,得到改性聚氨酯浆料;
步骤三:将改性聚氨酯浆料刮涂在离型纸上,涂布厚度为0.8mm,在涂布好的改性聚氨酯浆料上覆上一层基布并以基布作为底层,然后转移至烘箱中在160℃的条件下进行干燥,干燥后揭去离型纸进行压花、揉纹,最后用皮革涂饰剂涂膜,得到耐腐蚀仿皮面料。
实施例5
制备耐腐蚀仿皮面料,包括如下步骤:
步骤一:在氮气的保护下,将39g4,4'-二环己基甲烷二异氰酸酯、57g分子量为2000的聚四氢呋喃醚二醇和5.5g 2,2-二羟甲基丁酸加入烧瓶中,然后加入0.35g二月桂酸二丁基锡,在82℃的条件下搅拌反应2.8h,然后加入1,4-丁二醇,在72℃的条件下继续反应2.8h,加入三乙胺中和反应,然后加入2.7g乙二胺消耗掉反应体系中的异氰酸酯基团,得到聚氨酯预聚体;
步骤二:将11g大豆蛋白用90g去离子水分散,然后再加入11g按实施例1在方法制得的复合物粉末、6g水性皮革色浆、0.25g紫外线吸收剂UV-326、0.5g聚醚改性有机硅消泡剂、0.5g分散剂A168和36g聚氨酯预聚体,在23℃的条件下剪切分散2.5h,最后加入7.5gIPDI搅拌混合,脱泡,得到改性聚氨酯浆料;
步骤三:将改性聚氨酯浆料刮涂在离型纸上,涂布厚度为1.2mm,在涂布好的改性聚氨酯浆料上覆上一层基布并以基布作为底层,然后转移至烘箱中在170℃的条件下进行干燥,干燥后揭去离型纸进行压花、揉纹,最后用皮革涂饰剂涂膜,得到耐腐蚀仿皮面料。
实施例6
制备耐腐蚀仿皮面料,包括如下步骤:
步骤一:在氮气的保护下,将39g 4,4'-二环己基甲烷二异氰酸酯、57g分子量为2000的聚四氢呋喃醚二醇和5.5g 2,2-二羟甲基丁酸加入烧瓶中,然后加入0.35g二月桂酸二丁基锡,在85℃的条件下搅拌反应3h,然后加入1,4-丁二醇,在75℃的条件下继续反应3h,加入三乙胺中和反应,然后加入2.7g乙二胺消耗掉反应体系中的异氰酸酯基团,得到聚氨酯预聚体;
步骤二:将12g大豆蛋白用90g去离子水分散,然后再加入12g按实施例1在方法制得的复合物粉末、8g水性皮革色浆、0.3g紫外线吸收剂UV-326、0.8g聚醚改性有机硅消泡剂、0.5g分散剂A168和38g聚氨酯预聚体,在25℃的条件下剪切分散3h,最后加入8g HDI搅拌混合,脱泡,得到改性聚氨酯浆料;
步骤三:将改性聚氨酯浆料刮涂在离型纸上,涂布厚度为1.5mm,在涂布好的改性聚氨酯浆料上覆上一层基布并以基布作为底层,然后转移至烘箱中在180℃的条件下进行干燥,干燥后揭去离型纸进行压花、揉纹,最后用皮革涂饰剂涂膜,得到耐腐蚀仿皮面料。
对比例1:在实施例6的基础上,不添加大豆蛋白,其余步骤保持不变,制备出仿皮面料。
对比例2:在实施例6的基础上不添加复合物粉末,其余步骤保持不变,制备出仿皮面料。
对比例3:在实施例6的基础上,将复合物粉末替换为氧化石墨烯粉末,其余步骤保持不变,制备出仿皮面料。
对实施例4-实施例6和对比例1-对比例3进行性能测试,根据QB/T4046-2010,检测各组仿皮面料的断裂伸长率、耐折牢度(25℃,3.5万次)和手感等指标;将各组仿皮面料浸渍在浓度为3.5%的氯化钠溶液中20天,然后检测其耐腐蚀效率。结果如表1所示:
表1
由表1可以看出,实施例4-实施例6中制备的仿皮面料具有较好的强度、耐折牢度和耐腐蚀性,并且手感柔软、触感爽滑。
需要说明的是,在本文中,诸如术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含,从而使得包括一系列要素的过程、方法、物品或者设备不仅包括那些要素,而且还包括没有明确列出的其他要素,或者是还包括为这种过程、方法、物品或者设备所固有的要素。
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 (10)
1.一种耐腐蚀仿皮面料的制备方法,其特征在于,包括如下步骤:
步骤一:将氧化石墨烯粉末和羟基氧化铝粉末加入烧瓶中,然后加入乙醇溶液超声分散40-60min,得到分散液;将分散液采用水热反应法在180℃的条件下反应10-12h,过滤,将滤饼洗涤,干燥,粉碎,得到复合物粉末;
步骤二:将大豆蛋白用去离子水分散,然后再加入复合物粉末、色浆、紫外线吸收剂、消泡剂、分散剂和聚氨酯预聚体,在20-25℃的条件下剪切分散2-3h,最后加入聚氨酯固化剂搅拌混合,脱泡,得到改性聚氨酯浆料;
步骤三:将改性聚氨酯浆料刮涂在离型纸上,在涂布好的改性聚氨酯浆料上覆上一层基布并以基布作为底层,在160-180℃的条件下进行干燥,干燥后揭去离型纸进行压花、揉纹,最后用皮革涂饰剂涂膜,得到耐腐蚀仿皮面料。
2.根据权利要求1所述的一种耐腐蚀仿皮面料的制备方法,其特征在于,步骤一中所述氧化石墨烯粉末、羟基氧化铝粉末和乙醇溶液的用量比为1g:1g:1mL。
3.根据权利要求1所述的一种耐腐蚀仿皮面料的制备方法,其特征在于,所述聚氨酯预聚体通过如下步骤制备:
在氮气的保护下,将4,4'-二环己基甲烷二异氰酸酯、聚四氢呋喃醚二醇和2,2-二羟甲基丁酸加入烧瓶中,加入二月桂酸二丁基锡在80-85℃的条件下搅拌反应2.5-3h,加入1,4-丁二醇在70-75℃的条件下反应2.5-3h,加入三乙胺中和反应,然后加入乙二胺消耗掉反应体系中的异氰酸酯基团,得到聚氨酯预聚体。
4.根据权利要求3所述的一种耐腐蚀仿皮面料的制备方法,其特征在于,所述4,4'-二环己基甲烷二异氰酸酯、聚四氢呋喃醚二醇、2,2-二羟甲基丁酸、1,4-丁二醇的用量比为39g:57g:5.5g:0.35g:2.7g。
5.根据权利要求1所述的一种耐腐蚀仿皮面料的制备方法,其特征在于,步骤二中所述大豆蛋白、去离子水、复合物粉末、色浆、紫外线吸收剂、消泡剂、分散剂、聚氨酯预聚体和聚氨酯固化剂的用量比为10-12g:90g:10-12g:5-8g、0.2-0.3g:0.2-0.8g:0.5g:35-38g:7-8g。
6.根据权利要求1所述的一种耐腐蚀仿皮面料的制备方法,其特征在于,所述氧化石墨烯粉末通过如下步骤制备:
将石墨粉加入烧瓶中,然后向烧瓶中加入浓硫酸和质量分数为85%的磷酸,搅拌5-10min后在冰浴的条件下加入高锰酸钾粉末,升温至20-24℃并搅拌10-12h;将质量分数为25%的过氧化氢溶液预冷至0℃,然后在冰浴的条件下将预冷后的过氧化氢溶液加入烧瓶中,直到反应体系不产生气泡后停止反应,过滤,将滤饼洗涤,干燥,粉碎,得到氧化石墨烯粉末。
7.根据权利要求6所述的一种耐腐蚀仿皮面料的制备方法,其特征在于,石墨粉、浓硫酸、磷酸、高锰酸钾粉末和过氧化氢溶液的用量比为1.5g:200mL:23mL:9g:40mL。
8.根据权利要求1所述的一种耐腐蚀仿皮面料的制备方法,其特征在于,所述羟基氧化铝粉末通过如下步骤制备:
将无水氯化铝粉末和无水甲醇加入反应釜中搅拌反应30-50min,将反应液转移至坩埚中,180-200℃的条件下加热2-4h,得到羟基氧化铝胶体,将羟基氧化铝胶体干燥,粉碎,得到羟基氧化铝粉末。
9.根据权利要求8所述的一种耐腐蚀仿皮面料的制备方法,其特征在于,所述无水氯化铝粉末和无水甲醇的用量比为1g:40mL。
10.根据权利要求1所述的一种耐腐蚀仿皮面料的制备方法,其特征在于,所述聚氨酯固化剂为TDI、IPDI和HDI中的任意一种。
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