CN115595800B - 抗吸附耐磨抗划型有机硅皮革及其制备方法 - Google Patents
抗吸附耐磨抗划型有机硅皮革及其制备方法 Download PDFInfo
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- 239000010985 leather Substances 0.000 title claims abstract description 63
- 238000001179 sorption measurement Methods 0.000 title claims abstract description 27
- 230000003678 scratch resistant effect Effects 0.000 title claims abstract description 21
- 238000002360 preparation method Methods 0.000 title abstract description 15
- 239000002346 layers by function Substances 0.000 claims abstract description 57
- 239000010410 layer Substances 0.000 claims abstract description 51
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 35
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 35
- 239000010703 silicon Substances 0.000 claims abstract description 35
- 239000002344 surface layer Substances 0.000 claims abstract description 31
- 239000011248 coating agent Substances 0.000 claims abstract description 19
- 238000000576 coating method Methods 0.000 claims abstract description 19
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- 229920005989 resin Polymers 0.000 claims abstract description 7
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- -1 polydimethylsiloxane Polymers 0.000 claims description 40
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- 229920002554 vinyl polymer Polymers 0.000 claims description 23
- 230000001070 adhesive effect Effects 0.000 claims description 20
- 239000003795 chemical substances by application Substances 0.000 claims description 20
- 239000000853 adhesive Substances 0.000 claims description 19
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- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 claims description 16
- 239000003054 catalyst Substances 0.000 claims description 14
- 239000000945 filler Substances 0.000 claims description 14
- 238000002156 mixing Methods 0.000 claims description 13
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical group [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 12
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 11
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 10
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- 239000001257 hydrogen Substances 0.000 claims description 10
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- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 8
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- JUJWROOIHBZHMG-UHFFFAOYSA-N Pyridine Chemical compound C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 claims description 8
- 239000003112 inhibitor Substances 0.000 claims description 8
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- KPUWHANPEXNPJT-UHFFFAOYSA-N disiloxane Chemical class [SiH3]O[SiH3] KPUWHANPEXNPJT-UHFFFAOYSA-N 0.000 claims description 6
- 229920002545 silicone oil Polymers 0.000 claims description 6
- 239000000843 powder Substances 0.000 claims description 5
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims description 4
- 229910019142 PO4 Inorganic materials 0.000 claims description 4
- 229910000323 aluminium silicate Inorganic materials 0.000 claims description 4
- 150000001408 amides Chemical class 0.000 claims description 4
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 4
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 claims description 4
- 239000003063 flame retardant Substances 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 4
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- 229910052697 platinum Inorganic materials 0.000 claims description 4
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- ISIJQEHRDSCQIU-UHFFFAOYSA-N tert-butyl 2,7-diazaspiro[4.5]decane-7-carboxylate Chemical compound C1N(C(=O)OC(C)(C)C)CCCC11CNCC1 ISIJQEHRDSCQIU-UHFFFAOYSA-N 0.000 claims description 4
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- MWSKJDNQKGCKPA-UHFFFAOYSA-N 6-methyl-3a,4,5,7a-tetrahydro-2-benzofuran-1,3-dione Chemical compound C1CC(C)=CC2C(=O)OC(=O)C12 MWSKJDNQKGCKPA-UHFFFAOYSA-N 0.000 claims description 2
- FHVDTGUDJYJELY-UHFFFAOYSA-N 6-{[2-carboxy-4,5-dihydroxy-6-(phosphanyloxy)oxan-3-yl]oxy}-4,5-dihydroxy-3-phosphanyloxane-2-carboxylic acid Chemical compound O1C(C(O)=O)C(P)C(O)C(O)C1OC1C(C(O)=O)OC(OP)C(O)C1O FHVDTGUDJYJELY-UHFFFAOYSA-N 0.000 claims description 2
- BOTDANWDWHJENH-UHFFFAOYSA-N Tetraethyl orthosilicate Chemical group CCO[Si](OCC)(OCC)OCC BOTDANWDWHJENH-UHFFFAOYSA-N 0.000 claims description 2
- 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 2
- 229940072056 alginate Drugs 0.000 claims description 2
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- IYABWNGZIDDRAK-UHFFFAOYSA-N allene Chemical group C=C=C IYABWNGZIDDRAK-UHFFFAOYSA-N 0.000 claims description 2
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- 125000004122 cyclic group Chemical group 0.000 claims description 2
- 239000012975 dibutyltin dilaurate Substances 0.000 claims description 2
- VONWDASPFIQPDY-UHFFFAOYSA-N dimethyl methylphosphonate Chemical compound COP(C)(=O)OC VONWDASPFIQPDY-UHFFFAOYSA-N 0.000 claims description 2
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- 239000003822 epoxy resin Substances 0.000 claims description 2
- 125000003916 ethylene diamine group Chemical group 0.000 claims description 2
- 239000000835 fiber Substances 0.000 claims description 2
- NBVXSUQYWXRMNV-UHFFFAOYSA-N fluoromethane Chemical compound FC NBVXSUQYWXRMNV-UHFFFAOYSA-N 0.000 claims description 2
- 239000004745 nonwoven fabric Substances 0.000 claims description 2
- 125000000843 phenylene group Chemical group C1(=C(C=CC=C1)*)* 0.000 claims description 2
- UEZVMMHDMIWARA-UHFFFAOYSA-M phosphonate Chemical compound [O-]P(=O)=O UEZVMMHDMIWARA-UHFFFAOYSA-M 0.000 claims description 2
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 claims description 2
- 229920000647 polyepoxide Polymers 0.000 claims description 2
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 claims description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract description 9
- 239000000741 silica gel Substances 0.000 abstract description 7
- 229910002027 silica gel Inorganic materials 0.000 abstract description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract description 3
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- 239000002649 leather substitute Substances 0.000 description 6
- 239000001055 blue pigment Substances 0.000 description 3
- 239000006229 carbon black Substances 0.000 description 3
- 229910000428 cobalt oxide Inorganic materials 0.000 description 3
- IVMYJDGYRUAWML-UHFFFAOYSA-N cobalt(ii) oxide Chemical group [Co]=O IVMYJDGYRUAWML-UHFFFAOYSA-N 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- 239000000428 dust Substances 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 3
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 3
- NDLPOXTZKUMGOV-UHFFFAOYSA-N oxo(oxoferriooxy)iron hydrate Chemical group O.O=[Fe]O[Fe]=O NDLPOXTZKUMGOV-UHFFFAOYSA-N 0.000 description 3
- 238000011056 performance test Methods 0.000 description 3
- 239000001054 red pigment Substances 0.000 description 3
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
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- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- SKRWFPLZQAAQSU-UHFFFAOYSA-N stibanylidynetin;hydrate Chemical compound O.[Sn].[Sb] SKRWFPLZQAAQSU-UHFFFAOYSA-N 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/12—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins
- D06N3/128—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins with silicon polymers
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- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/0002—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate
- D06N3/0004—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate using ultra-fine two-component fibres, e.g. island/sea, or ultra-fine one component fibres (< 1 denier)
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- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/0002—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate
- D06N3/0011—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate using non-woven fabrics
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- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/0056—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the compounding ingredients of the macro-molecular coating
- D06N3/0059—Organic ingredients with special effects, e.g. oil- or water-repellent, antimicrobial, flame-resistant, magnetic, bactericidal, odour-influencing agents; perfumes
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- D06N3/0088—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the application technique by directly applying the resin
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- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/0086—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the application technique
- D06N3/0095—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the application technique by inversion technique; by transfer processes
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- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
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- D06N2209/00—Properties of the materials
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Abstract
本发明公开了一种抗吸附耐磨抗划型有机硅皮革及其制备方法,涉及有机硅皮革技术领域。由上到下依次设置的第一层面层、第二层功能层、第三层粘接层以及基层。将第二层有机硅胶料涂覆于离型纸上硫化,硫化后便得到第二层功能层;在第二层功能层上继续涂覆第三层有粘接性的有机硅胶料,并与基材贴合硫化,便得到初始皮革;降温后将初始皮革与离型纸剥离,再在第二功能层下涂覆第一层树脂胶料,在无尘环境下硫化后便得到抗吸附、耐磨抗划型有机硅皮革。本发明有机硅皮革表面摩擦力小、抗吸附、粘接能力强,具有优异耐磨性和抗刮伤性,其制备全程低碳环保,无有害物质释放或水污染,绿色安全,适合连续化生产。
Description
技术领域
本发明涉及有机硅皮革技术领域,尤其涉及一种抗吸附耐磨抗划型有机硅皮革及其制备方法。
背景技术
目前,市场上的PU/PVC等合成革在长时间的使用或放置的情况下,会使皮革内残存的溶剂、增塑剂不断释放,对人的健康非常不利。而有机硅皮革在耐水解、低VOC、无异味、环保等性能上具有很大的优势,成为其他面料所不能比拟和取代的产品。此外,有机硅皮革还有自身优异的其他特性:耐候性、阻燃性、防污易打理,亲肤不致敏,耐磨耐用,安全无毒等性能十分突出。当有机硅皮革选用有机硅材质涂层,使其分子间隙大于空气分子,小于水分子,水分子无法透过,而水蒸气则可以通过表面蒸发出来,可以做到有效的防水透气,且具有防潮、防霉、防菌等功能。因此有机硅皮革被广泛用于酒店、医疗、家居、3C、汽车、儿童等各大行业。
但在有机硅皮革使用过程中,发现其存在面层强度稍弱于PU合成革,表面摩擦力大,易于吸附灰尘、毛发、毛絮、黑东西等,粘接强度差,出现了爆皮,耐磨性差和抗刮伤性差等一系列问题。
公开号CN105696361A公开了一种超柔软有机硅皮革及其制备方法、公开号CN108286195A公开了一种发泡型有机硅合成革及其制备方法,这两个专利申请方案主要强调有机硅皮革的柔软性,并未提及吸附性和耐磨性,产品实用性差。
公开号CN103821008A公开了一种三层结构的有机硅合成革及其制备方法,其底层胶具有粘合作用,并且赋予柔软顺滑的特性;面层减少灰尘吸附,赋予干爽耐磨性能。但该产品整体柔软性、耐磨性不好,因其使用基胶,导致胶料黏度较大,涂布操作不方便。
公开号CN105623274A公开了一种抗静电有机硅合成革,在加入纳米级锑锡氧化物粉之后可以降低皮革表面的电阻率效果,然而该合成革吸附能力依然没得到根本改善,也未提产品的耐磨性、手感等方面的性能。
发明内容
为了解决上述技术问题,本发明提供了一种抗吸附耐磨抗划型有机硅皮革及其制备方法,得到的有机硅皮革表面摩擦力小、抗吸附、粘接能力强,具有优异耐磨性和抗刮伤性,其制备全程低碳环保,无有害物质释放或水污染,绿色安全,适合连续化生产。
为实现此技术目的,本发明采用如下方案:
抗吸附耐磨抗划型有机硅皮革,为层状结构,其特征在于,由上至下依次为面层、功能层、粘结层和基层。
进一步地,按质量份数计,面层的原料成分为:环氧有机硅树脂30~60份,固化剂5~10份,固化促进剂0.3~1份,面层填料20~40份,定向剂5~10份,面层色浆1~5份,疏油疏水剂2~6份。
进一步地,环氧有机硅树脂为聚二甲基硅氧烷和环氧树脂的嵌段共聚物,其黏度为30~50秒(涂4杯代表用4#粘度杯),环氧含量为0.02~0.06%;固化剂为正硅酸乙脂或甲基四氢邻苯二甲酸酐;固化促进剂为乙二烯三胺或二月桂酸二丁基锡;面层填料为纳米级二氧化硅溶胶包覆铝粉;定向剂为硅酮流平剂、氟碳流平剂、丙烯酸酯聚硅氧烷中的任意一种;面层色浆为分散在硅油中的颜料(根据产品需要,黑色颜料为炭黑,白色颜料为氧化钛,黄色颜料为天然含铁化合物,红色颜料为氧化铁,蓝色颜料为氧化钴等);疏油疏水剂的结构式为:
进一步地,按质量份数计,功能层的原料成分如下:乙烯基聚硅氧烷20~40份,功能层架桥剂5~20份,功能层填料35~55份,功能层色浆0~5份,功能层催化剂0.01~0.05份,功能层抑制剂0.001~0.01份,阻燃剂1~5份。
进一步地,乙烯基聚硅氧烷为端乙烯基聚硅氧烷与侧乙烯基硅氧烷按照2:1质量比混合而成,端乙烯基聚硅氧烷黏度为1000~5000mPa·s,侧乙烯基硅氧烷黏度为300~500mPa·s,总乙烯基的摩尔百分含量为0.20~0.36%;功能层架桥剂为侧含氢硅氧烷,黏度为200~300mPa·s,侧含氢硅氧烷中活性氢的质量百分含量为0.12~0.35%;功能层填料为硅铝酸盐类复配粉料、滑石粉、碳酸钙、钛白粉中的一种或两种以上,功能层填料使用前需要在高温400~600℃煅烧2h;功能层色浆为分散在硅油中的颜料(根据产品需要,黑色颜料为炭黑,白色颜料为氧化钛,黄色颜料为天然含铁化合物,红色颜料为氧化铁,蓝色颜料为氧化钴等);功能层催化剂为铂系催化剂,功能层催化剂中Pt质量含量为2000~4000ppm;功能层抑制剂为多乙烯基聚硅氧烷、吡啶、不饱和酰胺类、有机酸或亚磷酸中的任意一种;阻燃剂为环状磷酸酯、笼状磷酸酯、甲基膦酸二甲酯、烯烃基膦酸酯、酰胺膦酸酯中的任意一种。
进一步地,按质量份数计,粘接层的原料成分如下:乙烯基聚硅氧烷20~40份,粘接层架桥剂5~20份,粘接层填料35~55份,粘接剂1~4份,乙酰丙酮锆1~3份,粘接层色浆0~5份,粘接层催化剂0.01~0.05份,粘接层抑制剂0.001~0.01份。
进一步地,乙烯基聚硅氧烷为端乙烯基聚硅氧烷与侧乙烯基硅氧烷按照2:1质量比混合,端乙烯基聚硅氧烷黏度为1000~5000mPa·s,侧乙烯基硅氧烷黏度为300~500mPa·s,总乙烯基链节的摩尔百分含量为0.20~0.36%;粘接层架桥剂结构式为侧含氢硅氧烷,黏度为20~30mPa·s,其中活性氢的质量百分含量为0.32~0.35%;粘接层填料为硅铝酸盐类复配粉料、滑石粉、碳酸钙、钛白粉中的一种或者两种以上,粘接层填料使用前需要在高温400~600℃煅烧2h;粘接剂的结构通式为其中R代表亚甲基、亚乙基或亚苯基中的任意一种,粘接剂的黏度为30~50mPa·s;粘接层色浆为分散在硅油中的颜料(根据产品需要,黑色颜料为炭黑,白色颜料为氧化钛,黄色颜料为天然含铁化合物,红色颜料为氧化铁,蓝色颜料为氧化钴等);粘接层催化剂为铂系催化剂,Pt含量为2000~4000ppm;粘接层抑制剂为多乙烯基聚硅氧烷、吡啶、不饱和酰胺类、有机酸或亚磷酸中的任意一种。
进一步地,基层为超细海藻纤维无纺布。
进一步地,面层厚度为30~50μm,功能层厚度为200~500μm,粘接层厚度为5~80μm,基层厚度为0.6mm。
抗吸附耐磨抗划型有机硅皮革的制备方法,按如下步骤进行:
S1、将功能层的原料按照配比在高速分散机中混合均匀后,涂覆在离型纸上,功能层厚度为200~500μm,在60~100℃烘烤5~10分钟,便得到功能层;
S2、待功能层降温后,将粘接层的原料按照配比在高速分散机中混合均匀,并涂覆在功能层裸露面上,粘接层厚度为50~80μm,并将基材贴合上面,在100~140℃烘烤5~10分钟,便得到初始皮革;
S3、待初始皮革降温、初始皮革与离型纸剥离后,将面层原料按配比在高速分散机中混合均匀,并涂覆在功能层离型纸剥离后的新裸露面上,面层厚度为30~50μm,在无尘环境条件下室温固化至表干后,在60~80℃烘烤2~4h,得到抗吸附耐磨抗划型有机硅皮革。
与现有技术相比,本发明的有益效果在于:本发明由上到下依次设置的第一层面层、第二层功能层、第三层粘接层以及基层。先需要在离型纸上涂覆两遍第二层功能层胶料;固化降温后然后涂覆第三层粘接层胶料,并与基材贴合;最后在第二功能层下涂覆第一层面层胶料。这样制备的有机硅皮革表面摩擦力小、抗吸附、粘接能力强,具有优异耐磨性和抗刮伤性,其制备方法操作简单,全程低碳环保,无有害物质释放或水污染,适合连续化生产。
附图说明
图1为本发明实施例提供的抗吸附耐磨抗划型有机硅皮革的层状结构示意图;
图中标记为:1、面层;2、功能层;3、粘接层;4、基层。
具体实施方式
为充分了解本发明之目的、特征及功效,借由下述具体的实施方式,对本发明做详细说明,但本发明并不仅仅限于此。
抗吸附耐磨抗划型有机硅皮革的制备方法,按如下步骤进行:
S1、将功能层2有机硅胶料按表1配比在高速分散机中混合均匀后,涂覆在离型纸上,厚度为200~500μm,在60~100℃烘烤5~10分钟,便得到第二层功能层2。
S2、待功能层2降温后,将粘接层3有机硅胶料按原料配比在高速分散机中混合均匀后,涂覆在第二层功能层2上,厚度为50~80μm,并将基层4贴合上面,在100~140℃烘烤5~10分钟,便得到初始皮革。
S3、待初始皮革降温、初始皮革与离型纸剥离后,将面层1有机硅胶料按原料配比在高速分散机中混合均匀后,涂覆在功能层下,厚度为30~50μm,在无尘环境条件下室温固化至表干后在60~80℃烘烤2~4h,即得到抗吸附耐磨抗划型有机硅皮革。
按照本发明的技术方案做六组实施例,其中实施例1~6的原料和制备方法相同,不同之处在于原料配比、粘接层中的粘接剂用量、胶层的厚度不同,以分别考察其对防尘性、耐磨性、柔软度等性能的影响,具体的用量、配比如表1所示。
表1实施例1~6实验原料配比
对比例1:
1)选用的胶层为市售的有机硅皮革胶料;
2)有机硅皮革制备方法:
a、将有机硅面层胶胶料按配比在高速分散机中混合均匀后,涂覆在离型纸上,厚度为100μm,在100℃烘烤10分钟;
b、待其降温后,将有机硅中间层胶胶料按配比在高速分散机中混合均匀后,涂覆其上,厚度为150μm,在100℃烘烤10分钟;
c、待其降温后,将有机硅粘接胶按原料配比在高速分散机中混合均匀后,涂覆其上,厚度为60μm,并将基材贴合上面,在100-140℃烘烤5-10分钟,待初始皮革降温后将有机硅皮革与离型纸剥离,即可得到有机硅皮革产品。
对比例2:选用的有机硅皮革产品为市售的有机硅皮革产品。
对实施例1~6及对比例1、2中制备的有机硅皮革产品进行如下性能检测:
1、防污性
依照GB/T 30159.1-2013《纺织品防污性能的检测和评价第1部分:耐沾污性》规定,其结果等级由1到5级,级数越高表示其污物残留越少,即去污性越佳;级数越小表示污物残留越多,即去污性差。
2、耐磨性
依照QB/T2726-2005的规定,采用CS-17砂轮、试验负荷1000g。
3、柔软度
依照EN ISO17235-2002:皮革、物理和机械试验:软化度测定、ISO17235-2002:皮革、物理性能及机械性能试验劲度的测定,采用皮革柔软度试验机进行测试,测试环直径为其结果下陷距离越大,代表的有机硅皮革柔软度越好。
4、180°剥离破坏
依照GB/T8949-1995中的5.9的规定进行。
参照上述性能测试标准,对实施例1~6及对比例1、2进行性能测试,其检测结果如表2所示。
表2实施例1~4及对比例1、2中制备的有机硅皮革性能测试数据
由表2可以看出,利用本发明方法制备的有机硅皮革在吸附性、耐磨性、柔软度及180°剥离破坏均具有明显优势,通过耐沾污性对比可知,实施例1~4的级别更高,说明耐沾污性强,吸附力低。由于实施例1功能层厚度为200μm,导致其下陷距离小,柔软度稍弱。综合分析,本发明的有机硅皮革明显优于对比例中的有机硅皮革。
最后,需要注意的是:以上列举的仅是本发明的优选实施例,当然本领域的技术人员可以对本发明进行改动和变型,倘若这些修改和变型属于本发明权利要求及其等同技术的范围之内,均应认为是本发明的保护范围。
Claims (8)
1.一种抗吸附耐磨抗划型有机硅皮革,为层状结构,其特征在于,由上至下依次为面层、功能层、粘结层和基层;
按质量份数计,面层的原料成分为:
环氧有机硅树脂 30~60份,
固化剂 5~10份,
固化促进剂 0.3~1份,
面层填料 20~40份,
定向剂 5~10份,
面层色浆 1~5份,
疏油疏水剂 2~6份;
环氧有机硅树脂为聚二甲基硅氧烷和环氧树脂的嵌段共聚物,其黏度为30~50秒,环氧含量为0.02~0.06%;
固化剂为正硅酸乙脂或甲基四氢邻苯二甲酸酐;
固化促进剂为乙二烯三胺或二月桂酸二丁基锡;
面层填料为纳米级二氧化硅溶胶包覆铝粉;
定向剂为硅酮流平剂、氟碳流平剂、丙烯酸酯聚硅氧烷中的任意一种;
面层色浆为分散在硅油中的颜料;
疏油疏水剂的结构式为:
。
2. 根据权利要求1所述的抗吸附耐磨抗划型有机硅皮革,其特征在于,按质量份数计,功能层的原料成分如下:
乙烯基聚硅氧烷 20~40份
功能层架桥剂 5~20份
功能层填料 35~55份
功能层色浆 0~5份
功能层催化剂 0.01~0.05份
功能层抑制剂 0.001~0.01份
阻燃剂 1~5份。
3.根据权利要求2所述的抗吸附耐磨抗划型有机硅皮革,其特征在于,
乙烯基聚硅氧烷为端乙烯基聚硅氧烷与侧乙烯基硅氧烷按照2:1质量比混合而成,端乙烯基聚硅氧烷黏度为1000~5000mPa·s,侧乙烯基硅氧烷黏度为300~500mPa·s,总乙烯基的摩尔百分含量为0.20~0.36%;
功能层架桥剂侧含氢硅氧烷,黏度为200~300mPa·s,侧含氢硅氧烷中活性氢的质量百分含量为0.12~0.35%;
功能层填料为硅铝酸盐类复配粉料、滑石粉、碳酸钙、钛白粉中的一种或两种以上,功能层填料使用前需要在高温400~600℃煅烧2h;
功能层色浆为分散在硅油中的颜料;
功能层催化剂为铂系催化剂,功能层催化剂中Pt质量含量为2000~4000ppm;
功能层抑制剂为多乙烯基聚硅氧烷、吡啶、不饱和酰胺类、有机酸或亚磷酸中的任意一种;
阻燃剂为环状磷酸酯、笼状磷酸酯、甲基膦酸二甲酯、烯烃基膦酸酯、酰胺膦酸酯中的任意一种。
4. 根据权利要求1所述的抗吸附耐磨抗划型有机硅皮革,其特征在于,按质量份数计,粘接层的原料成分如下:
乙烯基聚硅氧烷 20~40份
粘接层架桥剂 5~20份
粘接层填料 35~55份
粘接剂 1~4份
乙酰丙酮锆 1~3份
粘接层色浆 0~5份
粘接层催化剂 0.01~0.05份
粘接层抑制剂 0.001~0.01份。
5.根据权利要求4所述的抗吸附耐磨抗划型有机硅皮革,其特征在于,
乙烯基聚硅氧烷为端乙烯基聚硅氧烷与侧乙烯基硅氧烷按照2:1质量比混合,端乙烯基聚硅氧烷黏度为1000~5000mPa·s,侧乙烯基硅氧烷黏度为300~500mPa·s,总乙烯基的摩尔百分含量为0.20~0.36%;
粘接层架桥剂为侧含氢硅氧烷,黏度为20~30mPa·s,其中活性氢的质量百分含量为0.32~0.35%;
粘接层填料为硅铝酸盐类复配粉料、滑石粉、碳酸钙、钛白粉中的一种或者两种以上,粘接层填料使用前需要在高温400~600℃煅烧2h;
粘接剂的结构通式为,其中R代表亚甲基、亚乙基或亚苯基中的任意一种,粘接剂的黏度为30~50mPa·s;
粘接层色浆为分散在硅油中的颜料;
粘接层催化剂为铂系催化剂,Pt含量为2000~4000ppm;
粘接层抑制剂为多乙烯基聚硅氧烷、吡啶、不饱和酰胺类、有机酸或亚磷酸中的任意一种。
6.根据权利要求1所述的抗吸附耐磨抗划型有机硅皮革,其特征在于,基层为超细海藻纤维无纺布。
7.根据权利要求1-6任一项所述的抗吸附耐磨抗划型有机硅皮革,其特征在于,面层厚度为30~50μm,功能层厚度为200~500μm,粘接层厚度为5~80μm,基层厚度为0.6mm。
8.一种权利要求1-7任一项所述的抗吸附耐磨抗划型有机硅皮革的制备方法,其特征在于,按如下步骤进行:
S1、将功能层的原料按照配比在高速分散机中混合均匀后,涂覆在离型纸上,功能层厚度为200~500μm,在60~100℃烘烤5~10分钟,便得到功能层;
S2、待功能层降温后,将粘接层的原料按照配比在高速分散机中混合均匀,并涂覆在功能层裸露面上,粘接层厚度为50~80μm,并将基材贴合在粘接层上面,在100~140℃烘烤5~10分钟,便得到初始皮革;
S3、待初始皮革降温、初始皮革与离型纸剥离后,将面层原料按配比在高速分散机中混合均匀,并涂覆在功能层离型纸剥离后的新裸露面上,面层厚度为30~50μm,在无尘环境条件下室温固化至表干后,在60~80℃烘烤2~4h,得到抗吸附耐磨抗划型有机硅皮革。
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