CN112745771A - 一种丙烯酸酯泡棉胶带及其制备方法 - Google Patents
一种丙烯酸酯泡棉胶带及其制备方法 Download PDFInfo
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- CN112745771A CN112745771A CN202011603943.5A CN202011603943A CN112745771A CN 112745771 A CN112745771 A CN 112745771A CN 202011603943 A CN202011603943 A CN 202011603943A CN 112745771 A CN112745771 A CN 112745771A
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- 239000006260 foam Substances 0.000 title claims abstract description 95
- 239000002390 adhesive tape Substances 0.000 title claims abstract description 65
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- -1 Acrylic ester Chemical class 0.000 title claims description 12
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims abstract description 79
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 claims abstract description 60
- 239000000178 monomer Substances 0.000 claims abstract description 25
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- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 claims description 15
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- LEJBBGNFPAFPKQ-UHFFFAOYSA-N 2-(2-prop-2-enoyloxyethoxy)ethyl prop-2-enoate Chemical compound C=CC(=O)OCCOCCOC(=O)C=C LEJBBGNFPAFPKQ-UHFFFAOYSA-N 0.000 claims description 8
- INQDDHNZXOAFFD-UHFFFAOYSA-N 2-[2-(2-prop-2-enoyloxyethoxy)ethoxy]ethyl prop-2-enoate Chemical compound C=CC(=O)OCCOCCOCCOC(=O)C=C INQDDHNZXOAFFD-UHFFFAOYSA-N 0.000 claims description 8
- BAPJBEWLBFYGME-UHFFFAOYSA-N Methyl acrylate Chemical compound COC(=O)C=C BAPJBEWLBFYGME-UHFFFAOYSA-N 0.000 claims description 8
- CQEYYJKEWSMYFG-UHFFFAOYSA-N butyl acrylate Chemical compound CCCCOC(=O)C=C CQEYYJKEWSMYFG-UHFFFAOYSA-N 0.000 claims description 8
- 239000011521 glass Substances 0.000 claims description 8
- OMPJBNCRMGITSC-UHFFFAOYSA-N Benzoylperoxide Chemical group C=1C=CC=CC=1C(=O)OOC(=O)C1=CC=CC=C1 OMPJBNCRMGITSC-UHFFFAOYSA-N 0.000 claims description 7
- 235000019400 benzoyl peroxide Nutrition 0.000 claims description 7
- CWERGRDVMFNCDR-UHFFFAOYSA-N thioglycolic acid Chemical compound OC(=O)CS CWERGRDVMFNCDR-UHFFFAOYSA-N 0.000 claims description 7
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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 claims description 6
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- KMNCBSZOIQAUFX-UHFFFAOYSA-N 2-ethoxy-1,2-diphenylethanone Chemical compound C=1C=CC=CC=1C(OCC)C(=O)C1=CC=CC=C1 KMNCBSZOIQAUFX-UHFFFAOYSA-N 0.000 claims description 4
- ZWVHTXAYIKBMEE-UHFFFAOYSA-N 2-hydroxyacetophenone Chemical compound OCC(=O)C1=CC=CC=C1 ZWVHTXAYIKBMEE-UHFFFAOYSA-N 0.000 claims description 4
- WNAHIZMDSQCWRP-UHFFFAOYSA-N dodecane-1-thiol Chemical compound CCCCCCCCCCCCS WNAHIZMDSQCWRP-UHFFFAOYSA-N 0.000 claims description 4
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- PSGCQDPCAWOCSH-UHFFFAOYSA-N (4,7,7-trimethyl-3-bicyclo[2.2.1]heptanyl) prop-2-enoate Chemical compound C1CC2(C)C(OC(=O)C=C)CC1C2(C)C PSGCQDPCAWOCSH-UHFFFAOYSA-N 0.000 claims description 3
- VOZRXNHHFUQHIL-UHFFFAOYSA-N glycidyl methacrylate Chemical compound CC(=C)C(=O)OCC1CO1 VOZRXNHHFUQHIL-UHFFFAOYSA-N 0.000 claims description 3
- PBOSTUDLECTMNL-UHFFFAOYSA-N lauryl acrylate Chemical compound CCCCCCCCCCCCOC(=O)C=C PBOSTUDLECTMNL-UHFFFAOYSA-N 0.000 claims description 3
- 239000002994 raw material Substances 0.000 claims description 3
- QZPSOSOOLFHYRR-UHFFFAOYSA-N 3-hydroxypropyl prop-2-enoate Chemical compound OCCCOC(=O)C=C QZPSOSOOLFHYRR-UHFFFAOYSA-N 0.000 claims description 2
- ZHUWXKIPGGZNJW-UHFFFAOYSA-N 6-methylheptyl 3-sulfanylpropanoate Chemical compound CC(C)CCCCCOC(=O)CCS ZHUWXKIPGGZNJW-UHFFFAOYSA-N 0.000 claims description 2
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- 239000000463 material Substances 0.000 description 3
- 238000010526 radical polymerization reaction Methods 0.000 description 3
- 229920001935 styrene-ethylene-butadiene-styrene Polymers 0.000 description 3
- 229920002725 thermoplastic elastomer Polymers 0.000 description 3
- OZAIFHULBGXAKX-UHFFFAOYSA-N 2-(2-cyanopropan-2-yldiazenyl)-2-methylpropanenitrile Chemical compound N#CC(C)(C)N=NC(C)(C)C#N OZAIFHULBGXAKX-UHFFFAOYSA-N 0.000 description 2
- 125000005396 acrylic acid ester group Chemical group 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- GGSUCNLOZRCGPQ-UHFFFAOYSA-N diethylaniline Chemical group CCN(CC)C1=CC=CC=C1 GGSUCNLOZRCGPQ-UHFFFAOYSA-N 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
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- 230000001105 regulatory effect Effects 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- RXQKKPDQYISKHD-UHFFFAOYSA-N 2-ethylhexyl prop-2-enoate;prop-2-enoic acid Chemical compound OC(=O)C=C.CCCCC(CC)COC(=O)C=C RXQKKPDQYISKHD-UHFFFAOYSA-N 0.000 description 1
- 239000006173 Good's buffer Substances 0.000 description 1
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- 238000004132 cross linking Methods 0.000 description 1
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- GYVGXEWAOAAJEU-UHFFFAOYSA-N n,n,4-trimethylaniline Chemical group CN(C)C1=CC=C(C)C=C1 GYVGXEWAOAAJEU-UHFFFAOYSA-N 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- BWJUFXUULUEGMA-UHFFFAOYSA-N propan-2-yl propan-2-yloxycarbonyloxy carbonate Chemical group CC(C)OC(=O)OOC(=O)OC(C)C BWJUFXUULUEGMA-UHFFFAOYSA-N 0.000 description 1
- 150000003254 radicals Chemical class 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000012719 thermal polymerization Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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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
- C09J7/00—Adhesives in the form of films or foils
- C09J7/10—Adhesives in the form of films or foils without carriers
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F2/00—Processes of polymerisation
- C08F2/46—Polymerisation initiated by wave energy or particle radiation
- C08F2/48—Polymerisation initiated by wave energy or particle radiation by ultraviolet or visible light
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
- C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F220/10—Esters
- C08F220/12—Esters of monohydric alcohols or phenols
- C08F220/16—Esters of monohydric alcohols or phenols of phenols or of alcohols containing two or more carbon atoms
- C08F220/18—Esters of monohydric alcohols or phenols of phenols or of alcohols containing two or more carbon atoms with acrylic or methacrylic acids
- C08F220/1804—C4-(meth)acrylate, e.g. butyl (meth)acrylate, isobutyl (meth)acrylate or tert-butyl (meth)acrylate
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
- C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F220/10—Esters
- C08F220/12—Esters of monohydric alcohols or phenols
- C08F220/16—Esters of monohydric alcohols or phenols of phenols or of alcohols containing two or more carbon atoms
- C08F220/18—Esters of monohydric alcohols or phenols of phenols or of alcohols containing two or more carbon atoms with acrylic or methacrylic acids
- C08F220/1808—C8-(meth)acrylate, e.g. isooctyl (meth)acrylate or 2-ethylhexyl (meth)acrylate
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- C09J133/06—Homopolymers or copolymers of esters of esters containing only carbon, hydrogen and oxygen, the oxygen atom being present only as part of the carboxyl radical
- C09J133/062—Copolymers with monomers not covered by C09J133/06
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- C09J133/04—Homopolymers or copolymers of esters
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Abstract
本发明公开了一种丙烯酸泡棉胶带及其制备方法。所述丙烯酸泡棉胶带主要通过两步法实现,首先通过丙烯酸单体的低温可控本体聚合制备出较低粘度的丙烯酸预聚液。接着以丙烯酸预聚液为主体,添加交联剂,光引发剂,发泡剂,在紫外光照射下制备丙烯酸泡棉胶带。所述泡棉胶带具有较好的力学强度,抗冲击性强,泡棉表面无须涂胶即具有粘性,极大的精简了泡棉胶带的制备工序,降低成本。单层泡棉胶带可用于超薄领域。
Description
技术领域
本发明属于泡棉胶带技术领域,尤其涉及一种丙烯酸酯泡棉胶带及其制备方法。
背景技术
泡棉胶带是以高分子材料为基材的发泡材料,具有粘贴牢固,使用快捷等特点,能够起到隔热,防水,减震,密封,吸音等作用,广泛应用在汽车配件,电子器件,手机配件,办公工具等领域。常见的泡棉胶带一般是在泡棉基材上涂敷压敏胶,利用泡棉层达到缓冲减震作用,表面的压敏胶起到粘接作用。这种方式制造的泡棉胶带工艺比较复杂,成本较高。压敏胶层与泡棉层容易发生脱落,影响其力学强度。同时,压敏胶的制备过程中所采用的各种溶剂也会对环境造成污染。为了保证泡棉胶带的缓冲性能,中间泡棉层的厚度无法进一步降低,这就导致多层泡棉胶一般较厚,无法应用在一些超薄场合,限制了泡棉胶带在一些高端领域中的应用。
现有的丙烯酸泡棉胶带技术(CN 110564309 A):公开了一种无溶剂型丙烯酸酯胶黏剂组合物及其超薄泡棉胶带的制备方法,以丙烯酸酯单体为主体材料,配以少量SIS弹性体,通过UV聚合技术,将丙烯酸酯单体和SIS分子聚合成一体。具有超高粘结强度、优良的防水缓冲性能,且生产成本低、工艺简单。
现有的丙烯酸UV固化泡棉胶带技术(CN 110791205 A):公开了一种胶黏剂、UV固化一体成型的自粘性泡棉胶带及制备方法。在胶黏剂的配方原料中采用聚丙烯酸酯与SEBS热塑性弹性体共混,二者的相容性好,可以利用SEBS热塑性弹性体的增韧增强作用,有效提高自粘性泡棉胶带的拉伸强度和剪切强度,具有较高的拉伸强度、优异的抗冲击性能、高剥离强度、高剪切强度、良好防水性等优点。
可见,现有泡棉胶带多采用单次固化方式,将反应单体一锅混合后紫外固化,获得的泡棉胶带单体残余率大,反应不完全,内聚强度低,抗冲击性能弱。
发明内容
本发明目的在于提供一种丙烯酸酯泡棉胶带及其制备方法,其制备一种100%固含量的丙烯酸泡棉胶带,通过热引发与光引发自由基聚合制备丙烯酸泡棉,所得丙烯酸泡棉胶带具有良好的缓冲性能与力学强度。通过使用单独泡棉层作为泡棉胶带,达到精简泡棉胶带的制备工艺,降低制作成本的目的,同时应用在一些超薄场所。
为达到上述目的,本发明采用的技术方案是:一种丙烯酸酯泡棉胶带,包括贴合在一起的丙烯酸泡棉层和离型膜层,所述丙烯酸泡棉层两侧面均具有粘性,粘着力为3~4N/cm,粘着力主要与胶水的本体粘度、弹性模量、分子量与分布、Tg及交联等有关。通过聚合物配方的调控,可以调控粘着力,所述离型膜层双面均设有离型层。
上述技术方案中进一步改进的技术方案如下:
1、上述方案中,所述丙烯酸泡棉层按重量份计,包括以下组分:
2、上述方案中,所述多官能丙烯酸类单体,由二乙二醇二丙烯酸,三乙二醇二丙烯酸,甲基丙烯酸缩水甘油酯,三羟甲基丙烷三丙烯酸酯的一种或者几种组成;
所述光引发剂为安息香甲醚,安息香乙醚,α-羟基苯乙酮,二烷氧基苯乙酮中的任意一种;
所述发泡剂为中空玻璃微珠或发泡塑料微球中的任意一种。
3、上述方案中,所述丙烯酸预聚液为无溶剂聚合反应,所述丙烯酸预聚液原料按重量份数计包括:丙烯酸类单体70~90份,氧化还原引发剂0.05~0.5份,链转移剂0~1份。
4、上述方案中,所述丙烯酸类单体为丙烯酸正丁酯、丙烯酸-2-乙基己酯、丙烯酸异冰片酯、丙烯酸十二烷基酯、丙烯酸、甲基丙烯酸甲酯、丙烯酸羟基丙酯、丙烯酸甲酯中的两种或者以上;
所述氧化还原引发剂包括氧化剂与还原剂,所述氧化剂为过氧化二苯甲酰,还原剂为N,N-二甲基苯胺、N,N-二乙基苯胺或N,N-二甲基对苯甲胺,氧化剂与还原剂摩尔比为1~2:1;
所述链转移剂为十二烷基硫醇、巯基乙醇、巯基乙酸、3-巯基丙酸异辛酯中的一种。
本发明采用的另一技术方案是:一种丙烯酸酯泡棉胶带的制备方法,包括以下步骤:
S1、按比例将丙烯酸类单体、氧化还原引发剂、链转移剂转移到反应釜中,通入氮气,室温混合搅拌30~60分钟,升温至60℃~80℃,反应30~60分钟,得到所述丙烯酸预聚液;
S2、按比例将丙烯酸预聚液、多官能丙烯酸类单体、光引发剂、发泡剂添加到真空反应釜中,混合搅拌60分钟,得到丙烯酸酯泡棉混合物;通过自由基热聚合,制备丙烯酸预聚液,加入加入油溶性氧化还原氧化还原引发剂,使其在低温本体聚合,控制反应热,防止聚合反应发生爆聚。控制氧化还原引发剂添加量调控胶水分子量及分布,将预聚物与发泡剂,固化剂混合,用紫外灯进一步固化,提高内聚,添加的发泡剂提高缓冲能力。
S3、将丙烯酸酯泡棉混合物涂布在离型膜层上,使用紫外光照射固化得到所述丙烯酸酯泡棉胶带。
上述技术方案中进一步改进的技术方案如下:
1、上述方案中,所述步骤S3中涂布厚度为100~400μm。
由于上述技术方案的运用,本发明与现有技术相比具有下列优点:
本发明丙烯酸酯泡棉胶带的制备方法,其采用两步法制备泡棉胶带,通过低温自由基聚合实现了反应过程安全可控,温度的可控,避免爆聚。所制备的泡棉胶带内聚强度高,缓冲能力强,避免了UV固化过程中单体反应不完全的问题;泡棉表面无须涂胶即具有粘性,极大的精简了泡棉胶带的制备工序,降低成本。
本发明丙烯酸酯泡棉胶带的制备方法,采用光热引发自由基聚合的方式制备丙烯酸泡棉胶带,避免了溶剂的使用,对环境友好,固含量达到100%;泡棉胶带的单层结构在兼顾粘性与缓冲性能的同时,可极大减小泡棉层的厚度,拓宽了泡棉胶带在超薄领域中的应用。
具体实施方式
下面结合实施例对本发明作进一步描述:
一种丙烯酸酯泡棉胶带,包括贴合在一起的丙烯酸泡棉层和离型膜层,所述丙烯酸泡棉层两侧面均具有粘性,粘着力为3~4N/cm及以上,所述离型膜层双面均设有离型层。
实施例1:一种丙烯酸酯泡棉胶带的制备方法,包括以下步骤:
(1)丙烯酸预聚液的制备:按重量份数计,包括70份丙烯酸类单体,具体包括60份丙烯酸正丁酯和10份丙烯酸;还包括氧化还原引发剂0.1份,具体为氧化剂为过氧化二苯甲酰,还原剂为N,N-二甲基苯胺,氧化剂与还原剂摩尔比为1:1;混合后加入反应釜中混合室温搅拌,通入氮气,搅拌30分钟,升温至40℃,继续反应60分钟,停止反应,得到丙烯酸预聚液。
(2)丙烯酸泡棉胶带的制备:按重量份数计,加入100份丙烯酸预聚液,0.1份三羟甲基丙烷三丙烯酸酯,0.1份的安息香乙醚,1份的中空玻璃微珠,搅拌60分钟后,将混合物涂布到离型膜上,涂布厚度为200μm。在发射波长为365nm紫外光LED灯进行固化,所述紫外线的强度为6000mJ/cm2,得到泡棉胶带。
实施例2:一种丙烯酸酯泡棉胶带的制备方法,包括以下步骤:
(1)丙烯酸预聚液的制备:按重量份数计,包括90份丙烯酸类单体,具体为80份丙烯酸-2-乙基己脂和10份甲基丙烯酸甲酯,还包括氧化还原引发剂0.5份,氧化剂为过氧化二苯甲酰,还原剂为N,N-二乙基苯胺,氧化剂与还原剂摩尔比为2:1,1份的巯基乙醇,加入反应釜中混合搅拌,通入氮气,搅拌40分钟,升温至60℃,继续反应30分钟,停止反应,得到丙烯酸预聚液。
(2)丙烯酸泡棉胶带的制备:按重量份数计,加入100份丙烯酸预聚液,2份三乙二醇二丙烯酸,3份的安息香甲醚,10份的中空玻璃微珠,搅拌60分钟后,将混合物涂布到离型膜上,涂布厚度为400μm。在发射波长为365nm紫外光LED灯进行固化,所述紫外线的强度为5000mJ/cm2,得到泡棉胶带。
实施例3:一种丙烯酸酯泡棉胶带的制备方法,包括以下步骤:
(1)丙烯酸预聚液的制备:按重量份数计,包括包括90份丙烯酸类单体,具体为70份丙烯酸正丁酯和20份丙烯酸甲酯,还包括氧化还原引发剂0.4份,氧化剂为过氧化二苯甲酰,还原剂为N,N-二甲基对苯甲胺,氧化剂与还原剂摩尔比为1.5:1,0.1份的巯基乙酸,加入反应釜中混合搅拌,通入氮气,搅拌40分钟,升温至50℃,继续反应30分钟,停止反应,得到丙烯酸预聚液。
(2)丙烯酸泡棉胶带的制备:按重量份数计,加入100份丙烯酸预聚液,0.8份二乙二醇二丙烯酸,1份的α羟基苯乙酮,8份的中空玻璃微珠,搅拌60分钟后,将混合物涂布到离型膜上,涂布厚度为100μm。在发射波长为365nm紫外光LED灯进行固化,所述紫外线的强度为7000mJ/cm2,得到泡棉胶带。
实施例4:一种丙烯酸酯泡棉胶带的制备方法,包括以下步骤:
(1)丙烯酸预聚液的制备:按重量份数计,包括90份丙烯酸类单体,具体为30份丙烯酸正丁酯、40份丙烯酸-2-乙基己酯和20份甲基丙烯酸甲酯,还包括氧化还原引发剂0.2份,氧化剂为过氧化二苯甲酰,还原剂为N,N-二甲基对苯甲胺,氧化剂与还原剂摩尔比为1.7:1,0.5份的十二烷基硫醇,加入反应釜中混合搅拌,通入氮气,搅拌60分钟,升温至40℃,继续反应50分钟,停止反应,得到丙烯酸预聚液。
(2)丙烯酸泡棉胶带的制备:按重量份数计,加入100份丙烯酸预聚液,0.1份甲基丙烯酸缩水甘油酯,1份三羟甲基丙烷三丙烯酸酯,2份的二烷氧基苯乙酮,10份的发泡塑料微球,搅拌60分钟后,将混合物涂布到离型膜上,涂布厚度为200μm。在发射波长为365nm紫外光LED灯进行固化,所述紫外线的强度为8000mJ/cm2,得到泡棉胶带。
实施例5:一种丙烯酸酯泡棉胶带的制备方法,包括以下步骤:
(1)丙烯酸预聚液的制备:按重量份数计,包括80份丙烯酸类单体,具体为60份丙烯酸正丁酯、10份丙烯酸异冰片酯和10份丙烯酸十二烷基酯,还包括1份氧化还原引发剂0.3份,氧化剂为过氧化二碳酸二异丙酯,2份的3-巯基丙酸异辛酯苯甲酰,还原剂为N,N-二甲基对苯甲胺,氧化剂与还原剂摩尔比为1.2:1,加入反应釜中混合搅拌,通入氮气,搅拌30分钟,升温至45℃,继续反应40分钟,停止反应,得到丙烯酸预聚液。
(2)丙烯酸泡棉胶带的制备:按重量份数计,加入100份丙烯酸预聚液,2份三羟甲基丙烷三丙烯酸,3份的安息香甲醚,10份的发泡塑料微球,搅拌60分钟后,将混合物涂布到离型膜上,涂布厚度为100μm。在发射波长为365nm紫外光LED灯进行固化,所述紫外线的强度为6000mJ/cm2,得到泡棉胶带。
对比例1:一种泡棉胶带的制备方法,包括以下步骤:
(1)取70份丙烯酸类单体,包括60份丙烯酸正丁酯,10份丙烯酸,0.1份过氧化二苯甲酰,0.5份的十二烷基硫醇,加入反应釜中混合搅拌,通入氮气,搅拌30分钟。
(2)取100份上述混合物,加入0.1份三羟甲基丙烷三丙烯酸酯,0.1份的安息香乙醚,1份的中空玻璃微珠,搅拌60分钟后,将混合物涂布到离型膜上,涂布厚度为200μm。在发射波长为365nm紫外光LED灯进行固化,所述紫外线的强度为6000mJ/cm2,得到泡棉胶带。
对比例2:一种泡棉胶带的制备方法,包括以下步骤:
(1)取90份丙烯酸类单体,包括80份丙烯酸-2-乙基己脂,10份甲基丙烯酸甲酯,0.4份偶氮二异丁腈,0.2份的巯基乙醇,加入反应釜中混合搅拌,通入氮气,搅拌40分钟。
(2)取100份上述混合物,加入0.4份三乙二醇二丙烯酸,0.6份的安息香甲醚,4份的中空玻璃微珠,搅拌60分钟后,将混合物涂布到离型膜上,涂布厚度为400μm。在发射波长为365nm紫外光LED灯进行固化,所述紫外线的强度为5000mJ/cm2,得到泡棉胶带。
对比例3:一种泡棉胶带的制备方法,包括以下步骤:
(1)取90份丙烯酸类单体,包括70份丙烯酸正丁酯,20份丙烯酸甲酯,0.5份偶氮二异庚腈,0.1份的巯基乙酸,加入反应釜中混合搅拌,通入氮气,搅拌50分钟。
(2)取100份丙烯酸预聚液,加入2份二乙二醇二丙烯酸,3份的α羟基苯乙酮,10份的中空玻璃微珠,搅拌60分钟后,将混合物涂布到离型膜上,涂布厚度为100μm。在发射波长为365nm紫外光LED灯进行固化,所述紫外线的强度为7000mJ/cm2,得到泡棉胶带。
将实施例1-3与对比例1-3制备的泡棉材料按照GB/T 7125-1999测试了其厚度与剥离力,结果如表1所示:
表1:泡棉胶带性能检测结果
本发明上述内容进一步解释如下:
本发明提供的两步法制备泡棉胶带,反应过程安全可控,所制备的泡棉胶带内聚强度高、粘着力高,缓冲能力强、无残胶。
上述实施例只为说明本发明的技术构思及特点,其目的在于让熟悉此项技术的人士能够了解本发明的内容并据以实施,并不能以此限制本发明的保护范围。凡根据本发明精神实质所作的等效变化或修饰,都应涵盖在本发明的保护范围之内。
Claims (7)
1.一种丙烯酸酯泡棉胶带,其特征在于:包括贴合在一起的丙烯酸泡棉层和离型膜层,所述丙烯酸泡棉层两侧面均具有粘性,粘着力为3~4N/cm,所述离型膜层双面均设有离型层。
3.根据权利要求2所述的丙烯酸酯泡棉胶带,其特征在于:所述丙烯酸预聚液为无溶剂聚合反应,所述丙烯酸预聚液原料按重量份数计包括:丙烯酸类单体70~90份,氧化还原引发剂0.05~0.5份,链转移剂0~1份。
4.根据权利要求3所述的丙烯酸酯泡棉胶带,其特征在于:所述丙烯酸类单体为丙烯酸正丁酯、丙烯酸-2-乙基己酯、丙烯酸异冰片酯、丙烯酸十二烷基酯、丙烯酸、甲基丙烯酸甲酯、丙烯酸羟基丙酯、丙烯酸甲酯中的两种或者以上;
所述氧化还原引发剂包括氧化剂与还原剂,所述氧化剂为过氧化二苯甲酰,还原剂为N,N-二甲基苯胺、N,N-二乙基苯胺或N,N-二甲基对苯甲胺,氧化剂与还原剂摩尔比为1~2:1;
所述链转移剂为十二烷基硫醇、巯基乙醇、巯基乙酸、3-巯基丙酸异辛酯中的一种。
5.根据权利要求2所述的丙烯酸酯泡棉胶带,其特征在于:所述多官能丙烯酸类单体,由二乙二醇二丙烯酸,三乙二醇二丙烯酸,甲基丙烯酸缩水甘油酯,三羟甲基丙烷三丙烯酸酯的一种或者几种组成;
所述光引发剂为安息香甲醚,安息香乙醚,α-羟基苯乙酮,二烷氧基苯乙酮中的任意一种;
所述发泡剂为中空玻璃微珠或发泡塑料微球中的任意一种。
6.一种权利要求1~5任一所述的丙烯酸酯泡棉胶带的制备方法,其特征在于:包括以下步骤:
S1、按比例将丙烯酸类单体、氧化还原引发剂、链转移剂转移到反应釜中,通入氮气,室温混合搅拌30~60分钟,升温至40℃~60℃,反应30~60分钟,得到所述丙烯酸预聚液;
S2、按比例将丙烯酸预聚液、多官能丙烯酸类单体、光引发剂、发泡剂添加到真空反应釜中,混合搅拌60分钟,得到丙烯酸酯泡棉混合物;
S3、将丙烯酸酯泡棉混合物涂布在离型膜层上,使用紫外光照射固化得到所述丙烯酸酯泡棉胶带。
7.根据权利要求4所述的丙烯酸酯泡棉胶带的制备方法,其特征在于:所述步骤S3中涂布厚度为100~400μm。
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CN114752013A (zh) * | 2022-05-16 | 2022-07-15 | 安徽富印新材料有限公司 | 一种耐高温丙烯酸泡棉胶胶带的制备方法 |
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