CN114716964B - 一种太阳能背板材料粘结用uv固化胶水及其制备方法 - Google Patents
一种太阳能背板材料粘结用uv固化胶水及其制备方法 Download PDFInfo
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- CN114716964B CN114716964B CN202111658346.7A CN202111658346A CN114716964B CN 114716964 B CN114716964 B CN 114716964B CN 202111658346 A CN202111658346 A CN 202111658346A CN 114716964 B CN114716964 B CN 114716964B
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- 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 5
- OMIGHNLMNHATMP-UHFFFAOYSA-N 2-hydroxyethyl prop-2-enoate Chemical compound OCCOC(=O)C=C OMIGHNLMNHATMP-UHFFFAOYSA-N 0.000 claims description 4
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- UPMLOUAZCHDJJD-UHFFFAOYSA-N 4,4'-Diphenylmethane Diisocyanate Chemical compound C1=CC(N=C=O)=CC=C1CC1=CC=C(N=C=O)C=C1 UPMLOUAZCHDJJD-UHFFFAOYSA-N 0.000 claims description 2
- 239000005057 Hexamethylene diisocyanate Substances 0.000 claims description 2
- KXBFLNPZHXDQLV-UHFFFAOYSA-N [cyclohexyl(diisocyanato)methyl]cyclohexane Chemical compound C1CCCCC1C(N=C=O)(N=C=O)C1CCCCC1 KXBFLNPZHXDQLV-UHFFFAOYSA-N 0.000 claims description 2
- RRAMGCGOFNQTLD-UHFFFAOYSA-N hexamethylene diisocyanate Chemical compound O=C=NCCCCCCN=C=O RRAMGCGOFNQTLD-UHFFFAOYSA-N 0.000 claims description 2
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- VFHVQBAGLAREND-UHFFFAOYSA-N diphenylphosphoryl-(2,4,6-trimethylphenyl)methanone Chemical compound CC1=CC(C)=CC(C)=C1C(=O)P(=O)(C=1C=CC=CC=1)C1=CC=CC=C1 VFHVQBAGLAREND-UHFFFAOYSA-N 0.000 description 7
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- STFXXRRQKFUYEU-UHFFFAOYSA-N 16-methylheptadecyl prop-2-enoate Chemical compound CC(C)CCCCCCCCCCCCCCCOC(=O)C=C STFXXRRQKFUYEU-UHFFFAOYSA-N 0.000 description 1
- YRTNMMLRBJMGJJ-UHFFFAOYSA-N 2,2-dimethylpropane-1,3-diol;hexanedioic acid Chemical compound OCC(C)(C)CO.OC(=O)CCCCC(O)=O YRTNMMLRBJMGJJ-UHFFFAOYSA-N 0.000 description 1
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- UHFFVFAKEGKNAQ-UHFFFAOYSA-N 2-benzyl-2-(dimethylamino)-1-(4-morpholin-4-ylphenyl)butan-1-one Chemical compound C=1C=C(N2CCOCC2)C=CC=1C(=O)C(CC)(N(C)C)CC1=CC=CC=C1 UHFFVFAKEGKNAQ-UHFFFAOYSA-N 0.000 description 1
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- DAKWPKUUDNSNPN-UHFFFAOYSA-N Trimethylolpropane triacrylate Chemical compound C=CC(=O)OCC(CC)(COC(=O)C=C)COC(=O)C=C DAKWPKUUDNSNPN-UHFFFAOYSA-N 0.000 description 1
- 230000006750 UV protection Effects 0.000 description 1
- HVVWZTWDBSEWIH-UHFFFAOYSA-N [2-(hydroxymethyl)-3-prop-2-enoyloxy-2-(prop-2-enoyloxymethyl)propyl] prop-2-enoate Chemical compound C=CC(=O)OCC(CO)(COC(=O)C=C)COC(=O)C=C HVVWZTWDBSEWIH-UHFFFAOYSA-N 0.000 description 1
- UKLDJPRMSDWDSL-UHFFFAOYSA-L [dibutyl(dodecanoyloxy)stannyl] dodecanoate Chemical group CCCCCCCCCCCC(=O)O[Sn](CCCC)(CCCC)OC(=O)CCCCCCCCCCC UKLDJPRMSDWDSL-UHFFFAOYSA-L 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
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- GCTPMLUUWLLESL-UHFFFAOYSA-N benzyl prop-2-enoate Chemical compound C=CC(=O)OCC1=CC=CC=C1 GCTPMLUUWLLESL-UHFFFAOYSA-N 0.000 description 1
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- KBLWLMPSVYBVDK-UHFFFAOYSA-N cyclohexyl prop-2-enoate Chemical compound C=CC(=O)OC1CCCCC1 KBLWLMPSVYBVDK-UHFFFAOYSA-N 0.000 description 1
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- XXMIOPMDWAUFGU-UHFFFAOYSA-N hexane-1,6-diol Chemical compound OCCCCCCO XXMIOPMDWAUFGU-UHFFFAOYSA-N 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
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- PBOSTUDLECTMNL-UHFFFAOYSA-N lauryl acrylate Chemical class CCCCCCCCCCCCOC(=O)C=C PBOSTUDLECTMNL-UHFFFAOYSA-N 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- YLHXLHGIAMFFBU-UHFFFAOYSA-N methyl phenylglyoxalate Chemical compound COC(=O)C(=O)C1=CC=CC=C1 YLHXLHGIAMFFBU-UHFFFAOYSA-N 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 125000004430 oxygen atom Chemical group O* 0.000 description 1
- XNGIFLGASWRNHJ-UHFFFAOYSA-L phthalate(2-) Chemical compound [O-]C(=O)C1=CC=CC=C1C([O-])=O XNGIFLGASWRNHJ-UHFFFAOYSA-L 0.000 description 1
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- 239000004250 tert-Butylhydroquinone Substances 0.000 description 1
- 235000019281 tert-butylhydroquinone Nutrition 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
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Classifications
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J175/00—Adhesives based on polyureas or polyurethanes; Adhesives based on derivatives of such polymers
- C09J175/04—Polyurethanes
- C09J175/14—Polyurethanes having carbon-to-carbon unsaturated bonds
- C09J175/16—Polyurethanes having carbon-to-carbon unsaturated bonds having terminal carbon-to-carbon unsaturated bonds
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/08—Processes
- C08G18/10—Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
- C08G18/12—Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step using two or more compounds having active hydrogen in the first polymerisation step
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/42—Polycondensates having carboxylic or carbonic ester groups in the main chain
- C08G18/4266—Polycondensates having carboxylic or carbonic ester groups in the main chain prepared from hydroxycarboxylic acids and/or lactones
- C08G18/4269—Lactones
- C08G18/4277—Caprolactone and/or substituted caprolactone
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/42—Polycondensates having carboxylic or carbonic ester groups in the main chain
- C08G18/44—Polycarbonates
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
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- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/65—Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen
- C08G18/66—Compounds of groups C08G18/42, C08G18/48, or C08G18/52
- C08G18/6633—Compounds of group C08G18/42
- C08G18/6637—Compounds of group C08G18/42 with compounds of group C08G18/32 or polyamines of C08G18/38
- C08G18/664—Compounds of group C08G18/42 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/3203
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
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- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
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- C08G18/671—Unsaturated compounds having only one group containing active hydrogen
- C08G18/672—Esters of acrylic or alkyl acrylic acid having only one group containing active hydrogen
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
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- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
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- C08G18/74—Polyisocyanates or polyisothiocyanates cyclic
- C08G18/75—Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic
- C08G18/751—Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic containing only one cycloaliphatic ring
- C08G18/752—Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic containing only one cycloaliphatic ring containing at least one isocyanate or isothiocyanate group linked to the cycloaliphatic ring by means of an aliphatic group
- C08G18/753—Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic containing only one cycloaliphatic ring containing at least one isocyanate or isothiocyanate group linked to the cycloaliphatic ring by means of an aliphatic group containing one isocyanate or isothiocyanate group linked to the cycloaliphatic ring by means of an aliphatic group having a primary carbon atom next to the isocyanate or isothiocyanate group
- C08G18/755—Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic containing only one cycloaliphatic ring containing at least one isocyanate or isothiocyanate group linked to the cycloaliphatic ring by means of an aliphatic group containing one isocyanate or isothiocyanate group linked to the cycloaliphatic ring by means of an aliphatic group having a primary carbon atom next to the isocyanate or isothiocyanate group and at least one isocyanate or isothiocyanate group linked to a secondary carbon atom of the cycloaliphatic ring, e.g. isophorone diisocyanate
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
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- Polymers & Plastics (AREA)
- Adhesives Or Adhesive Processes (AREA)
Abstract
本发明涉及C08G18/44,具体涉及一种太阳能背板材料粘结用UV固化胶水及其制备方法。原料包括光固化树脂。本发明采用无溶剂的胶水来替代溶剂型胶水,帮助客户实现环保生产,实现快速固化,提升生产效率,而且粘接力好,解决了PVDF的低表面能粘接问题。
Description
技术领域
本发明涉及C08G18/44,具体涉及一种太阳能背板材料粘结用UV固化胶水及其制备方法。
背景技术
目前,太阳能背板上覆膜粘接主要使用双组份溶剂型胶水,在其实际操作过程中,却存在一些难点,比如:溶剂的处理或者循环利用问题;双组份胶水粘接后的材料需要在特定烘房内进行熟化,由此引起的能源消耗、存放场地及生产效率问题。考虑到效率,能耗和环保的问题,单组份无溶剂胶水的切换使用是一个研究方向,光固化具有操作灵活、过程环保的特点,开发出符合背板材料粘接的紫外光固化胶水是本发明的主要目的。。
专利CN201610490145.3一种太阳能背板胶粘剂及其制备方法聚丙烯酸酯多元醇,聚碳酸酯多元醇,偶联剂,固化剂等相互作用,耐高温水解性优良,具有很长的使用寿命。
专利CN201611079378.0一种用于太阳能的粘胶剂组合物及其制备方法通过聚酯改性丙烯酸树脂,聚酯树脂,异氰酸酯固化剂之间的相互作用,具有良好的抗环境侵蚀能力,绝缘性优良。
但现有技术中制备得到的太阳能背板材料粘结用UV固化胶水由于PVDF的低表面能低,导致与背板的粘接性差,而且耐老化性差,无法长时间使用,增加了使用成本。
发明内容
为了解决上述技术问题,本发明的第一个方面提供了一种太阳能背板材料粘结用UV固化胶水,原料包括光固化树脂。
优选的,所述光固化树脂包括以下原料:按质量份计,异氰酸酯65-75份,羟基数目≥2的化合物A 180-230份,至少含有一个羟基和/或碳碳双键的化合物B 35-45份,至少含有一个羟基和/或苯环的化合物C1-2份。
优选的,所述异氰酸酯包括甲苯2,4二异氰酸酯、异佛尔酮二异氰酸酯、二苯基甲烷二异氰酸酯、二环己基甲烷二异氰酸酯、六亚甲基二异氰酸酯的至少一种。
进一步优选的,所述异氰酸酯为异佛尔酮二异氰酸酯。
优选的,所述羟基数目≥2的化合物A的平均分子量为1000-3000。
优选的,所述羟基数目≥2的化合物A的羟值50-120KOHmg/g,酸值为≤0.5KOHmg/g。
优选的,所述羟基数目≥2的化合物A包括聚四氢呋喃醚二醇,聚己二酸乙二醇酯,聚己二酸丁二醇酯,聚己二酸新戊二醇酯,聚己二酸己二醇酯,聚邻苯二甲酸二乙二醇酯,聚己内酯多元醇,聚碳酸酯多元醇的至少一种。
进一步优选的,所述羟基数目≥2的化合物A包括聚己内酯多元醇,聚碳酸酯多元醇。所述聚己内酯多元醇,聚碳酸酯多元醇的质量比为(3-5):(5-7)。
优选的,所述聚己内酯多元醇为聚己内酯二元醇。
优选的,所述聚己内酯多元醇的平均分子量为1000-1100。
优选的,所述聚己内酯多元醇的羟值为100-120KOHmg/g。
优选的,所述聚碳酸酯多元醇为聚碳酸酯二元醇。
优选的,所述聚碳酸酯多元醇的平均分子量为2000。
优选的,所述聚碳酸酯多元醇的羟值为50-65KOHmg/g。
优选的,所述至少含有一个羟基和/或碳碳双键的化合物B为一个羟基和碳碳双键的化合物,
进一步优选的,所述至少含有一个羟基和/或碳碳双键的化合物B至少含有一个羟基和碳碳双键。
优选的,所述至少含有一个羟基和碳碳双键的化合物B包括羟乙基丙烯酸酯,羟丙基丙烯酸酯,甲基羟乙基丙烯酸酯,1,4环己基二甲醇丙烯酸酯,季戊四醇三丙烯酸酯的至少一种。
进一步优选的,所述至少含有一个羟基和碳碳双键的化合物B含有一个羟基和一个碳碳双键。
更进一步优选的,所述含有一个羟基和一个碳碳双键的化合物B包括羟乙基丙烯酸酯。
优选的,所述至少含有一个羟基和/或苯环的化合物C包括含有两个羟基和一个苯环。
优选的,所述含有两个羟基和一个苯环的化合物C包括对苯二酚,邻苯二酚,间苯二酚,叔丁基对苯二酚的至少一种。
优选的,所述含有两个羟基和一个苯环的化合物C包括对苯二酚。
优选的,所述光固化树脂的制备方法,包括以下步骤:
1)向装有搅拌器、温度计的四口瓶中加入化合物A,升温到110-130℃,在0.09-0.10MPa条件下负压脱水1.5-2.5h,去除负压后降温到50-70℃,边搅拌边加入异氰酸酯,然后缓慢升温至80-90℃,反应2-4h后,降温至50-60℃即得预聚体溶液。
2)将化合物B,化合物C以及催化剂混合搅拌均匀得到混合物,然后在搅拌状态下滴加混合物到的预聚体溶液中,1.5-1.5h内滴加完毕,然后加热升温至70-90℃,跟踪检测-NCO的质量含量,当游离-NCO质量含量低于0.1%时,停止反应即得光固化树脂。
优选的,所述一种太阳能背板材料粘结用UV固化胶水,还包括以下原料:丙烯酸酯类化合物,光引发剂,助剂。
优选的,所述一种太阳能背板材料粘结用UV固化胶水,按质量百分数计,包括光固化树脂50-80份,丙烯酸酯类化合物20-50份,光引发剂3-6份,助剂0.5-2份。
优选的,所述丙烯酸酯类化合物的官能度为1-3。
优选的,所述丙烯酸酯类化合物的官能度为单官能度丙烯酸酯类化合物。
优选的,所述单官能度丙烯酸酯类化合物包括乙氧基乙氧基乙基丙烯酸酯,乙氧基化丙烯酸月桂酯,异冰片丙烯酸酯,丙烯酸异十八烷基酯,丙烯酸苄基酯,丙烯酸环己酯的至少一种。
进一步优选的,所述单官能度丙烯酸酯类化合物为异冰片丙烯酸酯。
优选的,所述丙烯酸酯类化合物的质量含量为23-35%。
优选的,所述光引发剂为自由基型光引发剂。
优选的,所述自由基型光引发剂包括2-羟基-2-甲基-1-苯基丙酮,1-羟基环己基苯基甲酮,2-甲基-2-(4-吗啉基)-1-[4-(甲硫基)苯基]-1-丙酮,2-二甲氨基-2-苄基-1-[4-(4-吗啉基)苯基]-1-丁酮,2-羟基-2-甲基-1-[4-(2-羟基乙氧基)苯基]-1-丙酮,2,4,6-三甲基苯甲酰基-二苯基氧化膦,2,4,6-三甲基苯甲酰基苯基膦酸乙酯,苯甲酰甲酸甲酯的至少一种。
进一步优选的,所述光引发剂包括1-羟基环己基苯基甲酮和2,4,6-三甲基苯甲酰基-二苯基氧化膦。所述1-羟基环己基苯基甲酮和2,4,6-三甲基苯甲酰基-二苯基氧化膦的质量比为(3-5):(3-5)。
优选的,所述助剂包括流平剂,分散剂,润湿剂,消泡剂,附着力促进剂的至少一种。
优选的,所述流平剂包括丙烯酸酯共聚体。
优选的,所述太阳能背板材料粘结用UV固化胶水的固化条件:UV能量500-800mj/cm2,UV光强150-200mw/cm2。
本发明的第二个方面提供了一种太阳能背板材料粘结用UV固化胶水的制备方法,包括以下步骤:按质量称取各原料,将各原料依次加入,搅拌均匀即得。
有益效果:
1)本发明通过制备特定光固化树脂并限定体系中丙烯酸酯类化合物,光引发剂,助剂等物质的具体种类和含量,制备得到的UV固化胶水具有耐老化性好,粘结强度高,固化速度快等优点。
2)由于PVDF表面张力低,难以粘结,聚碳酸酯二元醇含有更多的氧原子,与PVDF表面之间的氢键作用更强,具有更高粘结强度,但仅采用聚碳酸酯二元醇制备得到的UV固化胶水断裂伸长率,弯曲性能等较差,本发明采用聚己内酯二元醇与聚碳酸酯二元醇进行复配,增加UV固化胶水固化后的柔韧性,进一步提高拉伸性能。同时本发明进一步限定平均分子量为1000-1100,羟值为100-120KOHmg/g的聚己内酯二元醇和平均分子量为2000,羟值为50-65KOHmg/g的聚碳酸酯二元醇进行复配,控制体系中活性基团数目,分子链更容易结晶,提高其耐热稳定性,防止其发生老化,提高固化速度和耐盐雾性。
3)本发明通过采用单官能度丙烯酸酯类化合物异冰片丙烯酸酯,其含有的活性基团增加光固化树脂分子链之间的内聚能,改善了体系的剪切粘度,使得UV固化胶水具有更好的涂布性能的同时进一步增大了剥离强度和热稳定性,避免交联程度过大导致出现界面破坏,导致剥离强度和耐老化性下降。
4)现有不透明材料使用UV粘合剂普遍面临固化慢的问题,本发明采用1-羟基环己基苯基甲酮和2,4,6-三甲基苯甲酰基-二苯基氧化膦作为光引发剂,提高了对紫外光辐照的吸收量,显著加快了固化速度,提升生产效率。尤其是质量比(3-5):(3-5)时,同时避免交联密度过大,影响透光性和稳定性。
5)本发明所述太阳能背板材料粘结用UV固化胶水不含有溶剂,有助于实现环保生产,按照GB/T2790-1995C进行测试得到的太阳能背板材料粘结用UV固化胶水的剥离强度>6N;老化后强度>5N,同时耐高湿高热,粘结强度高,耐紫外线性能优异。
具体实施方式
实施例
实施例1
一种太阳能背板材料粘结用UV固化胶水,包括光固化树脂。
所述光固化树脂包括以下原料:按质量份计,异氰酸酯69.32份,羟基数目≥2的化合物A200份,至少含有一个羟基和/或碳碳双键的化合物B40.63份,至少含有一个羟基和/或苯环的化合物C1.55份。
所述异氰酸酯为异佛尔酮二异氰酸酯。所述异佛尔酮二异氰酸酯为包括75%顺式和25%反式异构体的混合物。型号:科思创(原拜耳)Desmodur I。
所述羟基数目≥2的化合物A包括聚己内酯多元醇,聚碳酸酯多元醇。所述聚己内酯多元醇,聚碳酸酯多元醇的质量比为4:6。
所述聚己内酯多元醇为聚己内酯二元醇,平均分子量为1003.5。羟值为112±4KOHmg/g,酸值为0.25KOHmg/g。在60℃下的粘度为150±mPa·s。型号:巴斯夫BASFCapromer PD1-10。
所述聚碳酸酯多元醇为聚碳酸酯二元醇,平均分子量为2000。羟值为56±5KOHmg/g,酸值为≤0.1KOHmg/g。所述聚碳酸酯多元醇的聚合单体包括1,5-戊二醇和1,6-己二醇。型号:PH 200。
所述异氰酸酯,化合物A均购自广州昊毅新材料科技股份有限公司。
所述至少含有一个羟基和/或碳碳双键的化合物B至少含有一个羟基和碳碳双键。所述化合物B包括羟乙基丙烯酸酯。
所述至少含有一个羟基和/或苯环的化合物C包括含有两个羟基和一个苯环。所述化合物C包括对苯二酚。
所述光固化树脂的制备方法,包括以下步骤:
1)向装有搅拌器、温度计的四口瓶中加入化合物A,升温到120℃,在0.095MPa条件下负压脱水2h,去除负压后降温到60℃,边搅拌边加入异氰酸酯,然后缓慢升温至85℃,反应3h后,降温至55℃即得预聚体溶液。
2)将化合物B,化合物C以及0.1份催化剂混合搅拌均匀得到混合物,然后在搅拌状态下滴加混合物到的预聚体溶液中,1h内滴加完毕,然后加热升温至80℃,跟踪检测-NCO的质量含量,当游离-NCO质量含量低于0.1%时,停止反应即得光固化树脂。所述催化剂为二月桂酸二丁基锡。
所述一种太阳能背板材料粘结用UV固化胶水,按质量百分数计,包括光固化树脂70份,丙烯酸酯类化合物25份,光引发剂4份,助剂1份。
所述丙烯酸酯类化合物的官能度为单官能度丙烯酸酯类化合物。所述单官能度丙烯酸酯类化合物为异冰片丙烯酸酯。
所述光引发剂包括1-羟基环己基苯基甲酮和2,4,6-三甲基苯甲酰基-二苯基氧化膦。所述1-羟基环己基苯基甲酮和2,4,6-三甲基苯甲酰基-二苯基氧化膦的质量比为4:4。所述光引发剂购自广州市广传电子材料有限公司,型号:184,TPO。
所述助剂包括流平剂。所述流平剂包括丙烯酸酯共聚体。所述流平剂购自东莞市合力化工贸易有限公司,型号BYK358N。
一种太阳能背板材料粘结用UV固化胶水的制备方法,包括以下步骤:按质量称取各原料,将各原料依次加入,搅拌均匀即得。
实施例2
一种太阳能背板材料粘结用UV固化胶水,具体实施方式同实施例1,不同之处在于所述聚己内酯多元醇,聚碳酸酯多元醇的质量比为5:7。
实施例3
一种太阳能背板材料粘结用UV固化胶水,具体实施方式同实施例1,不同之处在于所述UV固化胶水原料包括光固化树脂66份,丙烯酸酯类化合物28份,光引发剂5份,助剂1份。
对比例1
一种太阳能背板材料粘结用UV固化胶水,具体实施方式同实施例1,不同之处在于述丙烯酸酯类化合物为三羟甲基丙烷三丙烯酸酯。
对比例2
一种太阳能背板材料粘结用UV固化胶水,具体实施方式同实施例1,不同之处在于所述聚碳酸酯多元醇为聚碳酸酯二元醇,平均分子量为3000。羟值为37±3KOHmg/g,酸值为≤0.1KOHmg/g。型号:PH 300。
性能测试
1.基材:电晕处理的PET和PVDF膜。
涂布方式:辊涂,干胶时厚度为8微米;
固化方式:UV能量700mj/cm2(高压汞灯),UV光强180mw/cm2。
2.按照GB/T 31034-2014进行测试,测试项目和测试条件如表1所述:
表1
表2性能测试结果
表3性能测试结果
Claims (3)
1.一种太阳能背板材料粘结用UV固化胶水,其特征在于, 按质量百分数计,原料包括光固化树脂50-80份,丙烯酸酯类化合物20-50份,光引发剂3-6份,助剂0.5-2份;
所述丙烯酸酯类化合物的官能度为单官能度丙烯酸酯类化合物;所述单官能度丙烯酸酯类化合物为异冰片丙烯酸酯;
所述光固化树脂包括以下原料:按质量份计,异氰酸酯65-75份,羟基数目≥2的化合物A 180-230份,至少含有一个羟基和碳碳双键的化合物B 35-45份,至少含有一个羟基和/或苯环的化合物C 1-2份;
所述羟基数目≥2的化合物A包括聚己内酯多元醇,聚碳酸酯多元醇;所述聚己内酯多元醇,聚碳酸酯多元醇的质量比为(3-5):(5-7);
所述聚己内酯多元醇为聚己内酯二元醇;所述聚己内酯多元醇的平均分子量为1000-1100;所述聚己内酯多元醇的羟值为100-120KOHmg/g;
所述聚碳酸酯多元醇为聚碳酸酯二元醇,平均分子量2000,羟值为50-65KOHmg/g;
所述至少含有一个羟基和碳碳双键的化合物B包括羟乙基丙烯酸酯,羟丙基丙烯酸酯,甲基羟乙基丙烯酸酯,1,4环己基二甲醇丙烯酸酯的至少一种;
所述至少含有一个羟基和/或苯环的化合物C包括对苯二酚。
2.根据权利要求1所述的一种太阳能背板材料粘结用UV 固化胶水,其特征在于,所述异氰酸酯包括甲苯2 ,4二异氰酸酯、异佛尔酮二异氰酸酯、二苯基甲烷二异氰酸酯、二环己基甲烷二异氰酸酯、六亚甲基二异氰酸酯的至少一种。
3.一种根据权利要求1所述的一种太阳能背板材料粘结用UV 固化胶水的制备方法,其特征在于,包括以下步骤:按质量称取各原料,将各原料搅拌均匀即得。
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