CN102426494B - Bonding method of touch screen substrates, and binder for same - Google Patents

Bonding method of touch screen substrates, and binder for same Download PDF

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CN102426494B
CN102426494B CN 201110288966 CN201110288966A CN102426494B CN 102426494 B CN102426494 B CN 102426494B CN 201110288966 CN201110288966 CN 201110288966 CN 201110288966 A CN201110288966 A CN 201110288966A CN 102426494 B CN102426494 B CN 102426494B
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substrate
acrylate
meth
adhesive
binder
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CN102426494A (en )
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柳成良
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上海佑威新材料科技有限公司
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Abstract

本发明公开了一种触摸屏基板的粘合方法,包括如下步骤:(1)准备欲粘合的基板,所述基板上具有阴影区域和透明区域;(2)将底涂粘结剂均匀涂布于一基板一面的阴影区域;(3)将主体粘结剂均匀涂布于基板同一面的透明区域;(4)将另一基板贴于涂有底涂粘结剂和主体粘结剂的基板上;(5)使用UV灯对两基板进行预固化;(6)使用UV灯对完成预固化的两基板进行紫外辐照固化;(7)将两基板置入烘箱内烘烤。 The present invention discloses a method of bonding a touch screen substrate, comprising the steps of: (1) preparing a substrate to be bonded, the shaded region and a transparent region on the substrate; (2) the binder is uniformly applied undercoating in a shaded area of ​​one surface of the substrate; (3) the binder is uniformly applied to a substrate body with one surface of a transparent region; (4) affixed to the other substrate coated with the primer and adhesive binders substrate body on; (5) using a UV lamp at two pre-cured substrate; (6) using a UV lamp at two pre-cured substrate after UV curing radiation; (7) the two substrates into the oven baking. 本发明还公开了触摸屏基板粘合的粘结剂,包括底涂粘结剂和主体粘结剂,可在较低温度下固化和凝固,固化时间短,且主体粘结剂不含有过氧化物,可室温储存,不会导致储存中变黄和触摸屏可视区域变黄。 The present invention also discloses a touch panel substrate are bonded binder, undercoating comprising a binder and the binder main body, and solidifying the curable at lower temperatures, curing time is short, and the body adhesive does not contain a peroxide , can be stored at room temperature, it does not cause yellowing storage area and the touch screen visible yellowing.

Description

一种触摸屏基板的粘合方法及其粘结剂 A touch screen method of bonding a substrate and a binder

技术领域 FIELD

[0001] 本发明涉及触摸屏制作技术领域,尤其指一种触摸屏基板的粘合方法,同时,本发明还公开了触摸屏基板粘合的粘结剂。 [0001] The present invention relates to the technical field of the touch screen, particularly to a method of bonding a touch screen substrate, while the present invention also discloses a touch panel substrate bonding adhesive.

背景技术 Background technique

[0002] 触摸屏手机一出现,就成为了手机市场上的新宠,深受广大消费者的欢迎。 [0002] Touch screen phones appeared, became the new darling of the mobile phone market, welcomed by consumers. 但触摸屏中各基板之间的粘合却一直是困扰各手机生产商家的技术难题。 However, the adhesion between the touch screen in each substrate has been plagued by technical problems is the mobile phone production businesses. 研制高质量的基板粘合剂已成为业内研究的热点。 Development of high-quality substrate adhesive industry has become a hot research. 例如美国的3M InnovativeProperties Company于2010年3月24日递交了PCT国际申请W02010/111316A2,其涉及具有显示触摸屏的光学组件,其中基板采用粘合剂层进行粘结。 Such as the US 3M InnovativeProperties Company on March 24, 2010 filed a PCT International Application W02010 / 111316A2, which relates to an optical assembly having a touch screen display, wherein the substrate layer is bonded with an adhesive. 所述粘合剂包括多官能(甲基)丙烯酸酯低聚物和单官能(甲基)丙烯酸酯的活性稀释剂的反应产物以及增塑剂,其中,粘合剂中的反应产物可采用紫外光引发剂引发聚合反应而得到。 The adhesive comprises a polyfunctional (meth) acrylate oligomer and a monofunctional (meth) acrylate reactive diluent and the reaction product of a plasticizer, wherein the reaction product of UV adhesive may be employed obtained photoinitiator to initiate polymerization. 但是,这种依靠UV光固化粘合剂,在一些具体的应用领域中亦存在难以克服的困难,如,各基材之间存在阴影区域,即存在紫外光/可见光不能透过的区域(比如基板边框的油墨区,触摸屏上的软电路板等),从而导致粘合剂不能完全固化的情形,并会相应导致未粘合边缘的腐蚀、老化疲劳或粘结剥离的问题。 However, this relies on UV light curing adhesive, insurmountable difficulties also exist in some fields of application, e.g., the presence of the shaded area between the substrates, i.e. the presence area ultraviolet / visible impermeable (such as the substrate ink border region, the flexible circuit board on the touch screen, etc.), resulting in a case where the adhesive is not completely cured, and accordingly cause unbonded edge corrosion, aging or fatigue adhesive peeling.

[0003] 为了解决阴影区域的固化问题,行内做了进一步的探索研究,提出了双固化粘合剂及其固化方法,将紫外辐照固化和热固化或潮气固化相结合,但其缺陷和不足仍然明显,如热固化的主体胶黏剂中通常含有过氧化物作为自由基引发剂,而过氧化物会导致胶黏剂在储存过程中变黄,即使固化后也会导致触摸屏可视区域变黄。 [0003] In order to solve the problem of solidification of the shaded area, the line made further studies to explore the proposed dual cure adhesive and curing method, ultraviolet radiation curing and thermal curing or curing with moisture binding, but the defects and deficiencies still evident, such as thermally curable adhesives body usually contains a peroxide as a radical initiator, the peroxide can cause yellowing of the adhesive during storage, also cause the touch screen even after the curing becomes visible region yellow. 另外,含有过氧化物的主体胶黏剂需要低温储存,给运输和储存带来不便。 Further, the body adhesive containing a peroxide requires cryogenic storage, transportation and storage to inconvenience. 而潮气固化需要的时间长,以使潮气扩散到全部阴影区域,影响触摸屏的质量。 And the long time required for moisture cure, so that the moisture diffusion into the entire shaded area, affecting the quality of the touch screen.

[0004] 最近又出现了将过氧化物加入主题胶黏剂中,配合含有叔胺、取代硫脲、取代吡啶、醛胺缩合物等还原剂和少量过度金属离子催化剂的底涂粘结剂,利用氧化还原反应产生自由基,在常温进行阴影区域的固化。 [0004] Recently, there has been the topic Adhesive peroxide was added, with containing tertiary amines, substituted thioureas, substituted pyridine reducing agent, aldehyde amine condensates and other transition metal ion catalyst and a small amount of an adhesive primer, redox reaction using a free radical, curing at normal temperature shaded area. 使用时将底涂粘结剂涂在阴影区域,可视区域利用紫外线固化。 When using the primer adhesive is applied in a shadow region, visible region by ultraviolet curing. 这种方法虽然避免了加热,但主体胶黏剂中仍含有过氧化物,仍然不能避免胶黏剂在储存过程中变黄,触摸屏可视区域变黄的缺陷。 Although this method avoids heating, but still contains a peroxide body adhesives, can not be averted adhesive yellowing during storage, the touch screen viewable area yellowing defect.

发明内容 SUMMARY

[0005] 本发明针对现有技术之不足和缺陷,提供一种触摸屏基板的粘合方法,工艺简单,可操作性强;同时本发明还提供了触摸屏基板粘合的粘结剂,本发明中在阴影区域使用的粘结剂可以在较低温度下固化和凝固,不需要像潮气固化那样等待很长时间,其主体粘结剂中不含有过氧化物,可以在室温下储存,不会导致储存中变黄和触摸屏可视区域变黄。 [0005] The present invention is directed to defects and deficiencies of the prior art, there is provided a touch panel substrate bonding method, the process is simple, easy to operate; The invention also provides an adhesive bonding the touch screen substrate, the present invention the binder used in the shadow region can be cured at a lower temperature and solidified, does not need to wait as long as moisture curing, which does not contain a peroxide main binder, can be stored at room temperature, does not cause storage yellowing and yellowing of the touch screen viewable area.

[0006] 为了实现上述发明目的,本发明提供以下技术方案: [0006] In order to achieve the above object, the present invention provides the following technical solutions:

[0007] 本发明所述的一种触摸屏基板的粘合方法,包括如下步骤: [0007] A touch screen substrate bonding method according to the present invention, comprising the steps of:

[0008] (I)准备欲粘合的基板,所述基板上具有阴影区域和透明区域; [0008] (I) preparing a substrate to be bonded, with the shaded region and a transparent region on a substrate;

[0009] (2)将配制好的底涂粘结剂均匀涂布于一基板一面的阴影区域,静置待底涂粘结剂中有机溶剂完全挥发; [0009] (2) the preparation of a good uniform coating on the adhesive primer shaded region of one surface of a substrate, a primer was allowed to stand until complete evaporation of the organic solvent in the binder;

[0010] (3)将配制好的主体粘结剂均匀涂布于步骤(2)所述基板同一面的透明区域; [0010] (3) The prepared adhesive was uniformly applied to the body in step (2) one surface of the substrate with a transparent region;

[0011] (4)将另一基板贴于步骤(3)所述的基板上涂有底涂粘结剂和主体粘结剂的一面上; [0011] (4) affixed to the other substrate in step (3) is coated with an adhesive primer on one surface and the adhesive on the body of the substrate;

[0012] (5)使用UV灯对步骤⑷所述的两基板进行预固化; [0012] (5) the step of using a UV lamp according ⑷ two pre-cured substrate;

[0013] (6)使用UV灯对步骤(5)完成预固化的两基板进行紫外辐照固化; [0013] (6) using a UV lamp at step (5) to complete the pre-cured by ultraviolet radiation curing the substrates;

[0014] (7)将两基板置入烘箱内烘烤。 [0014] (7) The substrate was placed into two baking oven.

[0015] 其中,步骤(5)所述UV灯预固化的福照能量1000mj/cm2,福照功率为100mw/cm2,辐照时间为10秒。 [0015] wherein, in step (5) of the pre-cured UV lamp fu as energy 1000mj / cm2, fu as a power of 100mw / cm2, irradiation time was 10 seconds.

[0016] 其中,步骤(6)所述UV灯紫外辐照固化的辐照能量3000mj/cm2,辐照功率为IOOmw/cm2,福照时间为30秒。 [0016] wherein, in step (6) the ultraviolet lamp UV irradiation energy radiation curable 3000mj / cm2, irradiation power of IOOmw / cm2, fu as time of 30 seconds.

[0017] 其中,步骤(7)所述烘烤温度为70_90°C,烘烤时间为20-40分。 [0017] wherein, in step (7) of the baking temperature is 70_90 ° C, baking time of 20-40 minutes.

[0018] 所述粘合方法中用到的底涂粘结剂包含的各组份及其重量份如下: [0018] and the parts by weight of each component used in the method of bonding primer binder comprises the following:

[0019]热引发剂 1.0-10.0 % [0019] Thermal initiator 1.0 to 10.0%

[0020]有机溶剂 90-99%; [0020] 90-99% organic solvent;

[0021] 所述热引发剂包括但不限于过氧化物,过硫酸盐,偶氮二异丁腈;所述有机溶剂包括但不限于丙酮,甲醇,乙醇,异丙醇,石油醚,正己烷,正庚烷,环己烷,二氯甲烷,氯仿,乙酸乙酯。 [0021] The thermal initiators include, but are not limited to, peroxides, persulfates, azo-bis-isobutyronitrile; the organic solvent include, but are not limited to acetone, methanol, ethanol, isopropanol, petroleum ether, n-hexane , n-heptane, cyclohexane, methylene chloride, chloroform, ethyl acetate.

[0022] 进一步的,所述过氧化物包括但不限于过氧化二苯甲酰,过氧化二月桂酰,过氧化二碳酸二(十六烷基)酯,过氧化二碳酸二(十四烷基)酯,2,5-二甲基-2,5-双(2-乙基己酰过氧)己烷,过氧-2-乙基己酸叔丁酯,过氧二乙基乙酸叔丁酯,1,1,3,3-四甲基丁基过氧化-2-乙基己酯中的一种或多种混和。 [0022] Further, the peroxide including but not limited to, dibenzoyl peroxide, dilauroyl peroxide, di (cetyl) peroxydicarbonate, di (tetradecane yl) ester, 2,5-dimethyl-2,5-bis (2-ethyl hexanoyl peroxy) hexane, t-butyl peroxy-2-ethylhexanoate, t-butylperoxy diethyl acetate butyl, 1,1,3,3-tetramethylbutyl peroxy-2-ethylhexyl acrylate, one or more mixed.

[0023] 所述粘合方法中用到的主体涂粘结剂包含的各组份及其重量份如下: [0023] and the parts by weight of each component used in the method adhesive coated adhesive body comprising the following:

[0024](甲基)丙烯酸酯单体 10-70% [0024] (meth) acrylate monomer 10-70%

[0025](甲基)丙烯酸酯树脂 10-50% [0025] (meth) acrylate resin 10-50%

[0026]光引发剂 0.5-5.0% [0026] 0.5 to 5.0% photoinitiator

[0027]增塑剂 10-60%。 [0027] 10-60% plasticizer.

[0028] 所述(甲基)丙烯酸酯单体包括但不限于(甲基)丙烯酸羟丙酯,(甲基)丙烯酸羟乙酯,(甲基)丙烯酸羟丁酯,(甲基)丙烯酸异冰片酯,(甲基)丙烯酸四氢呋喃酯,乙氧基(甲基)丙烯酸酯,(甲基)丙烯酸十二酯,(甲基)丙烯酸十酯,(甲基)丙烯酸十三酯中的一种或多种混合。 [0028] The (meth) acrylate monomers include, but are not limited to (meth) acrylate, hydroxypropyl (meth) acrylate, hydroxypropyl (meth) acrylate, hydroxy butyl (meth) acrylate isobornyl (meth) acrylate, tetrahydrofurfuryl acrylate, ethoxy (meth) acrylate, (meth) acrylate, lauryl (meth) acrylate ten acrylate, (meth) acrylate, tridecyl acrylate in or more mixed.

[0029] 所述(甲基)丙烯酸酯树脂包括但不限于聚醚(甲基)丙烯酸酯,聚酯(甲基)丙烯酸酯,聚氨酯(甲基)丙烯酸酯,含(甲基)丙烯酸酯活性官能团的聚丁二烯,含(甲基)丙烯酸酯活性官能团的聚异戊二烯橡胶中的一种或多种混和。 [0029] The (meth) acrylate resin include, but are not limited to, polyether (meth) acrylates, polyester (meth) acrylates, urethane (meth) acrylate, a (meth) acrylate activity functional group-polybutadiene, polyisoprene rubber containing (meth) acrylate reactive functional group of one or more mixed.

[0030] 所述(甲基)丙烯酸酯单体以及(甲基)丙烯酸酯树脂一起构成底涂粘结剂的粘结主体试剂。 Together constitute an adhesive bonding undercoat agent of the body [0030] (meth) acrylate monomers and (meth) acrylate resin.

[0031] 所述光引发剂包括但不限于二苯甲酮和取代的二苯甲酮、苯乙酮和取代的苯乙酮、苯偶姻及其烷基酯;咕吨酮和取代的咕吨酮、氧化膦、二乙氧基苯乙酮、苯偶姻甲醚、苯偶姻乙醚、苯偶姻异丙醚、二乙氧基咕吨酮、氯代硫代咕吨酮、N-甲基二乙醇胺二苯甲酮、2-羟基-2-甲基-1-苯基丙-1-酮、2-苄基-2-( 二甲基氨基)-1-[4-(4_吗啉基)苯基]-1-丁酮,1-羟基环己基苯基酮、2-甲基-1-[4-(甲硫基)苯基]-2-吗啉代丙-1-酮、2-苄基-2-N,N- 二甲基氨基-1- (4-吗啉基苯基)-1- 丁酮、1-羟基环己基苯基酮和二苯甲酮的结合物、2,2_ 二甲氧基-2-苯基苯乙酮中的一种或多种混和。 [0031] The photoinitiators include but are not limited to, benzophenone and substituted benzophenones, acetophenone and substituted acetophenones, benzoin and its alkyl esters; xanthone and substituted cushions thioxanthone, phosphine oxides, diethoxy acetophenone, benzoin methyl ether, benzoin ethyl ether, benzoin isopropyl ether, diethoxy-xanthone, chloro-thio-xanthone, N- methyl diethanolamine benzophenone, 2-methyl-1-phenyl-propan-1-one, 2-benzyl-2- (dimethylamino) -1- [4- (4 _ morpholinyl) phenyl] -1-butanone, 1-hydroxy cyclohexyl phenyl ketone, 2-methyl-1- [4- (methylthio) phenyl] -2-morpholino-propan-1 -1-butanone, 1-hydroxycyclohexyl phenyl ketone and binding ketone, 2-benzyl -2-N, N- dimethylamino-1- (4-morpholinophenyl) benzophenone product, 2,2_-dimethoxy-2-phenylacetophenone a ketone in a mixture or more. 引发剂主要作用在光照的情况下引发反应。 The main role of initiator to initiate the reaction in the case of illumination.

[0032] 其中,增塑剂包括但不限于聚酯多元醇、聚醚多元醇、液体聚丁二烯、液体聚异戊二烯非活性树脂中的一种或多种混和。 [0032] wherein the plasticizers include, but are not limited to, polyester polyols, polyether polyols, liquid polybutadiene, liquid polyisoprene inactive in one or more of the resin mixture. 增塑剂主要用于调节底涂粘结剂的各种物理性能。 Plasticizer mainly for adjusting various physical properties of the adhesive primer.

[0033] 本发明的有益效果为:本发明还公开了触摸屏基板粘合的粘结剂,包括底涂粘结剂和主体粘结剂,可在较低温度下固化和凝固,固化时间短,且主体粘结剂中不含有过氧化物,可室温储存,不会导致储存中变黄和触摸屏可视区域变黄。 [0033] Advantageous effects of the present invention are: The present invention also discloses a touch panel substrate are bonded binder, undercoating comprising a binder and the binder main body, and solidifying the curable at lower temperatures, short curing time, and the binder main body does not contain a peroxide, can be stored at room temperature, it does not cause yellowing storage area and the touch screen visible yellowing.

具体实施方式 detailed description

[0034] 下面结合具体实施例对本发明进行详细描述。 Specific embodiments of the present invention will be described in detail [0034] below in conjunction.

[0035] 实施例一 [0035] Example a

[0036] 先准备具有阴影区域和透明区域的基板;后取45.0g异丙醇和50.0g乙酸乙酯加入搅拌器中混合均匀,再加入5.0g2, 2-偶氮二异丁腈,搅拌至无可见颗粒,搅拌过程中控制温度不高于20°C,制得底涂粘结剂,取一定量制得的底涂粘结剂均匀涂布于基板一面的阴影区域,静置待底涂粘结剂中有机溶剂完全挥发;再取10.0g(甲基)丙烯酸羟丙酯,50.0g聚醚(甲基)丙烯酸酯以及37.5g聚酯多元醇加入搅拌器中搅拌30分钟,然后加入 [0036] a substrate having a first region and a transparent region of the shadow; after taking 45.0g isopropanol and 50.0g of ethyl acetate were added uniformly mixed with a stirrer, was added 5.0g2, 2- azobisisobutyronitrile, stirring until no visible particles, the mixing process control temperature no higher than 20 ° C, to prepare an adhesive primer, a certain amount of the prepared primer adhesive uniformly coated on one surface of the substrate of the shaded region, the primer adhesive to be left coalescent complete evaporation of the organic solvent; then take 10.0 g (meth) acrylate, 50.0 g of polyether (meth) acrylate, and 37.5g polyester polyol was added with stirring with a stirrer for 30 minutes, followed by addition of

2.5gN-甲基二乙醇胺二苯甲酮搅拌60-90分钟使N-甲基二乙醇胺二苯甲酮完全溶解,制得主体粘结剂,取一定量主体粘结剂均匀涂布于基板同一面的透明区域;取另一基板贴于上述基板上涂有底涂粘结剂和主体粘结剂的一面上;使用UV灯对两基板进行预固化,预固化的辐照能量lOOOmj/cm2,辐照功率为lOOmw/cm2,辐照时间为10秒;使用UV灯对完成预固化的两基板进行紫外辐照固化,紫外辐照固化的辐照能量3000mj/cm2,辐照功率为IOOmw/cm2,辐照时间为30秒;最后,将基底放置在80°C烘箱20分钟,完成阴影区域的固化。 2.5gN- methyldiethanolamine benzophenone stirred for 60-90 minutes to N- methyldiethanolamine benzophenone is completely dissolved, to obtain a binder main body, take a certain amount of the adhesive was uniformly applied to a substrate in the same body transparent areas of the face; take another substrate affixed to one surface of the substrate coated with the primer and adhesive binder main body; two substrates using a UV lamp to pre-cure, the pre-curing radiation energy lOOOmj / cm2, irradiation power of lOOmw / cm2, irradiation time was 10 seconds; two UV lamp for curing the substrate after pre-curing is ultraviolet radiation, the irradiation energy of ultraviolet radiation-curable 3000mj / cm2, irradiation power of IOOmw / cm2 irradiation time was 30 seconds; and then, the substrate is placed in an oven at 80 ° C for 20 minutes to complete the curing of the shaded area.

[0037] 测定发现,不透光的阴影区域已完全固化,60°C,95%湿度老化lOOOh,可视区域无明显黄变。 [0037] Measurement found, opaque shadow region is fully cured, 60 ° C, 95% humidity aging lOOOh, no yellowing visible region.

[0038] 实施例二 [0038] Second Embodiment

[0039] 先准备具有阴影区域和透明区域的基板;后取29.0g甲苯、25.0g正己烷以及45.0g氯仿加入搅拌器中混合均匀,再加入1.0g过氧化二月桂酰,搅拌至无可见颗粒,搅拌过程中控制温度不高于20°C,制得底涂粘结剂,取一定量制得的底涂粘结剂均匀涂布于基板一面的阴影区域,静置待底涂粘结剂中有机溶剂完全挥发;再取70.0g(甲基)丙烯酸异冰片酯,10.0g聚酯(甲基)丙烯酸酯以及19.5g聚醚多元醇加入搅拌器中搅拌30分钟,然后加入0.5g2-羟基-2-甲基-1-苯基丙-1-酮搅拌60-90分钟使2-羟基-2-甲基-1-苯基丙-1-酮完全溶解,制得主体粘结剂,取一定量主体粘结剂均匀涂布于基板同一面的透明区域;取另一基板贴于上述基板上涂有底涂粘结剂和主体粘结剂的一面上;使用UV灯对两基板进行预固化,预固化的福照能量1000mj/cm2,福照功率为100mw/cm2,福照时间为10秒;使用UV灯对 [0039] a substrate having a first region and a transparent region of the shadow; after taking 29.0g of toluene, 25.0 g of n-hexane was added and uniformly mixed with a stirrer 45.0g of chloroform, and then added 1.0g dilauroyl peroxide, stirred until no visible particles , during stirring to control the temperature of not higher than 20 ° C, to prepare an adhesive primer, a certain amount of the prepared primer adhesive uniformly coated on one surface of the substrate of the shaded area, allowed to stand until the adhesive primer complete evaporation of the organic solvent; then take 70.0 g of (meth) acrylate, 10.0 g of polyester (meth) acrylate, and 19.5g polyether polyol to the mixer for 30 minutes, followed by addition of hydroxy 0.5g2- methyl-1-phenyl-propan-1-one was stirred for 60-90 min 2-hydroxy-2- methyl-1-phenyl-propan-1-one was completely dissolved to prepare an adhesive body, taken amount of binder is uniformly applied to a substrate body with one surface of the transparent area; take another substrate affixed to one surface of the substrate coated with the primer and adhesive binder main body; two UV lamp to substrate was pre curing the pre-cured fu as energy 1000mj / cm2, fu as a power of 100mw / cm2, fu as time was 10 seconds; the use of a UV lamp 成预固化的两基板进行紫外辐照固化,紫外辐照固化的辐照能量3000mj/Gm2,福照功率为100mw/cm2,福照时间为30秒;最后,将基底放直在70 C供箱30分钟,完成阴影区域的固化。 To two pre-cured substrate ultraviolet radiation curing, the irradiation energy of ultraviolet radiation-curable 3000mj / Gm2, fu as a power of 100mw / cm2, fu as time of 30 seconds; and finally, the substrate is placed in direct supply tank 70 C for 30 minutes to complete the curing of the shaded area.

[0040] 测定发现,不透光的阴影区域已完全固化,60°C,95%湿度老化lOOOh,可视区域无明显黄变。 [0040] Measurement found, opaque shadow region is fully cured, 60 ° C, 95% humidity aging lOOOh, no yellowing visible region.

[0041] 实施例三 [0041] Example three

[0042] 先准备具有阴影区域和透明区域的基板;后取30.0g甲苯、30.0g丙酮以及30.0g二氯甲烷加入搅拌器中混合均匀,再加入10.0g过氧化二苯甲酰,搅拌至无可见颗粒,搅拌过程中控制温度不高于20°C,制得底涂粘结剂,取一定量制得的底涂粘结剂均匀涂布于基板一面的阴影区域,静置待底涂粘结剂中有机溶剂完全挥发;再取15.0g乙氧基(甲基)丙烯酸酯,20.0g聚氨酯(甲基)丙烯酸酯以及60.0g液体聚丁二烯加入搅拌器中搅拌30分钟,然后加入5.0gl-轻基环己基苯基酮搅拌60-90分钟使1-轻基环己基苯基酮完全溶解,制得主体粘结剂,取一定量主体粘结剂均匀涂布于基板同一面的透明区域;取另一基板贴于上述基板上涂有底涂粘结剂和主体粘结剂的一面上;使用UV灯对两基板进行预固化,预固化的辐照能量1000mj/Gm2,辐照功率为lOOmw/cm2,辐照时间为10秒;使用UV灯对完成预 [0042] a substrate having a first region and a transparent region of the shadow; toluene after taking 30.0g, 30.0g and 30.0g acetone was uniformly mixed with a stirrer was added methylene chloride, and then 10.0g of dibenzoyl peroxide were added and stirred until no visible particles, the mixing process control temperature no higher than 20 ° C, to prepare an adhesive primer, a certain amount of the prepared primer adhesive uniformly coated on one surface of the substrate of the shaded region, the primer adhesive to be left coalescent complete evaporation of the organic solvent; then take 15.0g ethoxymethyl (meth) acrylate, 20.0 g of urethane (meth) acrylate, and 60.0g of liquid polybutadiene was added was stirred with a stirrer for 30 minutes, followed by addition of 5.0 gl- light cyclohexyl phenyl ketone was stirred for 60-90 minutes to light 1- cyclohexyl phenyl ketone was completely dissolved to prepare an adhesive body, take a certain amount of the adhesive was uniformly applied to a substrate body with one surface of a transparent region; take another substrate affixed to one surface of the substrate coated with the primer and adhesive binder main body; two substrates using a UV lamp to pre-cure, the pre-curing radiation energy 1000mj / Gm2, irradiation power is lOOmw / cm2, irradiation time was 10 seconds; using a UV lamp to complete the pre- 固化的两基板进行紫外辐照固化,紫外辐照固化的辐照能量3000mj/cm2,辐照功率为IOOmw/cm2,福照时间为30秒;最后,将基底放置在90 °C烘箱40分钟,完成阴影区域的固化。 Two cured substrate ultraviolet radiation curing, the irradiation energy of ultraviolet radiation-curable 3000mj / cm2, irradiation power of IOOmw / cm2, fu as time of 30 seconds; and finally, the substrate is placed in an oven at 90 ° C for 40 minutes complete curing of the shaded area.

[0043] 测定发现,不透光的阴影区域已完全固化,60°C,95%湿度老化lOOOh,可视区域无明显黄变。 [0043] Measurement found, opaque shadow region is fully cured, 60 ° C, 95% humidity aging lOOOh, no yellowing visible region.

[0044] 以上仅是本发明的优选实施方式,应当指出,对于本技术领域的普通技术人员来说,在不脱离本发明原理的前提下,还可以做出若干改进和润饰,这些改进和润饰也应视为本发明的保护范围。 [0044] The above are only preferred embodiments of the present invention, it should be noted that those of ordinary skill in the art, in the present invention without departing from the principles of the premise, can make various improvements and modifications, improvements and modifications of these also it is considered the scope of the present invention.

Claims (7)

  1. 1.一种触摸屏基板的粘合方法,包括如下步骤: (1)准备欲粘合的基板,所述基板上具有阴影区域和透明区域; (2)将配制好的底涂粘结剂均匀涂布于一基板一面的阴影区域,静置待底涂粘结剂中有机溶剂完全挥发; (3)将配制好的主体粘结剂均匀涂布于步骤(2)所述基板同一面的透明区域; (4)将另一基板贴于步骤(3)所述的基板上涂有底涂粘结剂和主体粘结剂的一面上; (5)使用UV灯对步骤(4)所述的两基板进行预固化; (6)使用UV灯对步骤(5)完成预固化的两基板进行紫外辐照固化; (7)将两基板置入烘箱内烘烤; 步骤(5)所述UV灯预固化的福照能量1000mj/cm2,福照功率为100mw/cm2,福照时间为10秒;步骤(6)所述UV灯紫外福照固化的福照能量3000mj/cm2,福照功率为100mw/cm2,福照时间为30秒; 步骤(7)所述烘烤温度为70-90°C,烘烤时间为20-40分钟; 其中所述粘合方法中用到的底 CLAIMS 1. A method of bonding a touch screen substrate, comprising the steps of: (1) preparing a substrate to be bonded, the shaded region and a transparent region on the substrate; (2) the prepared primer coating, and adhesive distributed in the shaded region of one surface of a substrate, a primer was allowed to stand until complete evaporation of the organic solvent binder; (3) the prepared adhesive was uniformly applied to the body in step (2) one surface of the substrate with the transparent area ; (4) affixed to the other substrate in step (3) is coated with an adhesive primer on one surface and the adhesive on the body of the substrate; according to (5) using a UV lamp at step (4) two pre-cured substrate; (6) using a UV lamp at step (5) of the two substrates to complete a pre-cured by ultraviolet radiation curable; (7) into two substrates in the oven baking; step (5) the UV lamp pre Fu Chiu energy curable 1000mj / cm2, fu as a power of 100mw / cm2, fu as time was 10 seconds; UV-fu as a UV lamp curing step (6) fu as energy 3000mj / cm2, fu as a power of 100mw / cm2, for 30 seconds according to Fu; step (7) of the baking temperature is 70-90 ° C, baking time of 20-40 minutes; wherein the adhesive substrate used in the method 涂粘结剂包含的各组份及其重量份如下:· 热引发剂1.0-10.0% 有机溶剂90-99% ; 所述粘合方法中用到的主体涂粘结剂包含的各组份及其重量份如下:(曱基)丙烯酸酯单体 10-70%(曱基)丙烯酸酯树脂 10-50%光引发剂 0.5-5.0% 增塑剂 10-60%。 Parts by weight of each component and the coating binder comprises the following: · thermopolymerization initiator is 1.0 to 10.0% of organic solvent, 90-99%; the adhesive body used in the method of coating comprising a binder and the components parts by weight which follows :( Yue-yl) acrylic acid ester monomer 10 to 70% (Yue-yl) acrylate resin, photoinitiator 10-50% 10-60% 0.5-5.0% plasticizer.
  2. 2.一种如权利要求1所述粘合方法中用到的底涂粘结剂,其特征在于,热引发剂包括但不限于过氧化物,过硫酸盐,偶氮二异丁腈;有机溶剂包括但不限于丙酮,甲醇,乙醇,异丙醇,石油醚,正己烷,正庚烷,环己烷,二氯甲烷,氯仿,乙酸乙酯。 A pressure-sensitive adhesive as a primer used in the method as claimed in claim binder, wherein the thermal initiators include, but are not limited to, peroxides, persulfates, azobis isobutyronitrile; Organic solvents include, but are not limited to acetone, methanol, ethanol, isopropanol, petroleum ether, n-hexane, n-heptane, cyclohexane, methylene chloride, chloroform, ethyl acetate.
  3. 3.根据权利要求2所述的底涂粘结剂,其特征在于:过氧化物包括但不限于过氧化二苯甲酰,过氧化二月桂酰,过氧化二碳酸二(十六烷基)酯,过氧化二碳酸二(十四烷基)酯,2,5-二甲基-2,5-双(2-乙基己酰过氧)己烧,过氧-2-乙基己酸叔丁酯,过氧二乙基乙酸叔丁酯,1,1,3,3-四甲基丁基过氧化-2-乙基己酯中的一种或多种混和。 Primer binder according to claim 2, characterized by: the peroxide including but not limited to, dibenzoyl peroxide, dilauroyl peroxide, di (hexadecyl) peroxydicarbonate, di (tetradecyl) ester, 2,5-dimethyl-2,5-bis (2-ethyl hexanoyl peroxy) hexyl burning, peroxy-2-ethylhexanoate t-butyl, t-butyl peroxy diethyl acetate, 1,1,3,3-tetramethylbutyl peroxy-2-ethylhexyl acrylate, one or more mixed.
  4. 4.一种如权利要求1所述粘合方法中用到的主体涂粘结剂,其特征在于:(甲基)丙烯酸酯单体包括但不限于(甲基)丙烯酸羟丙酯,(甲基)丙烯酸羟乙酯,(甲基)丙烯酸羟丁酯,(甲基)丙烯酸异冰片酯,(甲基)丙烯酸四氢呋喃酯,乙氧基(甲基)丙烯酸酯,(甲基)丙烯酸十二酯,(甲基)丙烯酸十酯,(甲基)丙烯酸十三酯中的一种或多种混合。 4. A method as in claim 1 used in bonding the adhesive-coated body as claimed in claim, wherein meth) acrylate monomers include, but are not limited to (meth) acrylate, hydroxypropyl (meth yl) acrylate, (meth) acrylate, hydroxy butyl (meth) acrylate, (meth) acrylate, tetrahydrofurfuryl acrylate, ethoxy (meth) acrylate, (meth) acrylate, lauryl ester, (meth) acrylate ten acrylate, (meth) one or more mixture of tridecyl acrylate.
  5. 5.根据权利要求4所述的主体涂粘结剂,其特征在于:(甲基)丙烯酸酯树脂包括但不限于聚醚(甲基)丙烯酸酯,聚酯(甲基)丙烯酸酯,聚氨酯(甲基)丙烯酸酯,含(甲基)丙烯酸酯活性官能团的聚丁二烯,含(甲基)丙烯酸酯活性官能团的聚异戊二烯橡胶中的一种或多种混和。 5. The coated adhesive body according to claim 4, characterized in that meth) acrylate resin include, but are not limited to, polyether (meth) acrylates, polyester (meth) acrylates, urethane ( meth) acrylate, a (meth) acrylate reactive functional group of polybutadiene, polyisoprene rubber containing (meth) acrylate reactive functional group of one or more mixed.
  6. 6.根据权利要求5所述的主体涂粘结剂,其特征在于:光引发剂包括但不限于二苯甲酮和取代的二苯甲酮、苯乙酮和取代的苯乙酮、苯偶姻及其烷基酯;咕吨酮和取代的咕吨酮、氧化膦、二乙氧基苯乙酮、苯偶姻甲醚、苯偶姻乙醚、苯偶姻异丙醚、二乙氧基咕吨酮、氯代硫代咕吨酮、N-甲基二乙醇胺二苯甲酮、2-羟基-2-甲基-1-苯基丙-1-酮、2-苄基-2-( 二甲基氨基)-1-[4-(4_吗啉基)苯基]-1- 丁酮,1-羟基环己基苯基酮、2-甲基-1- [4-(甲硫基)苯基]-2-吗啉代丙-1-酮、2-苄基-2-N,N- 二甲基氨基-1- (4-吗啉基苯基)-1- 丁酮、1-轻基环己基苯基酮和二苯甲酮的结合物、2, 2- 二甲氧基-2-苯基苯乙酮中的一种或多种混和。 6. The coated adhesive body according to claim 5, wherein: photoinitiators include but are not limited to, benzophenone and substituted benzophenones, acetophenone and substituted acetophenones, benzoin benzoin and its alkyl esters; substituted xanthone and xanthone, phosphine oxides, diethoxy acetophenone, benzoin methyl ether, benzoin ethyl ether, benzoin isopropyl ether, diethoxy xanthone, chloro-thio-xanthone, N- methyl diethanolamine benzophenone, 2-methyl-1-phenyl-propan-1-one, 2-benzyl-2- ( dimethylamino) -1- [4- (4_ morpholinyl) phenyl] -1-butanone, 1-hydroxy cyclohexyl phenyl ketone, 2-methyl-1- [4- (methylthio ) phenyl] -2-morpholino-propan-1-one, 2-benzyl -2-N, N- dimethylamino-1- (4-morpholinophenyl) -1-butanone, 1 - light cyclohexyl phenyl ketone and benzophenone conjugate, 2, 2-dimethoxy-2-phenylacetophenone a ketone in a mixture or more.
  7. 7.根据权利要求6所述的主体涂粘结剂,其中增塑剂包括但不限于聚酯多元醇、聚醚多元醇、液体聚丁二烯、`液体聚异戊二烯非活性树脂中的一种或多种混和。 7. The adhesive coated body according to claim 6, wherein the plasticizers include, but are not limited to, polyester polyols, polyether polyols, liquid polybutadiene, liquid polyisoprene `inactive resin one or more mixed.
CN 201110288966 2011-09-26 2011-09-26 Bonding method of touch screen substrates, and binder for same CN102426494B (en)

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