CN105219290A - A kind of preparation method of anti-xanthochromia glazing film - Google Patents
A kind of preparation method of anti-xanthochromia glazing film Download PDFInfo
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- CN105219290A CN105219290A CN201510735841.1A CN201510735841A CN105219290A CN 105219290 A CN105219290 A CN 105219290A CN 201510735841 A CN201510735841 A CN 201510735841A CN 105219290 A CN105219290 A CN 105219290A
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Abstract
The invention discloses a kind of preparation method of anti-xanthochromia glazing film, its glue is mixed by component A and B component: component A is polyacrylate dispersion; B component is the strong reductant aqueous solution.The present invention by removing the possibility that S element significantly reduces glue xanthochromia in polyacrylate dispersion preparation process, prepares the later stage at glue simultaneously and adds strong reductant, finally reach good anti-xanthochromia effect.The properties of the glazing film be prepared into this emulsion adhesive is good, and in 5 years quality guaranteed perioves, glue xanthochromia does not occur and preparation technology is simple, pollution-free, with low cost, is applicable to large-scale industrial production.
Description
Technical field
The present invention relates to the preparation method of emulsion-type polyacrylic ester glazing film, especially a kind of preparation method of anti-xanthochromia emulsion-type polyacrylic ester glazing film.
Background technology
Along with industrial development, technical progress, pressure sensitive adhesive quality improves constantly, and use range is also more and more extensive.In the past, most pressure sensitive adhesive was solvent pressure-sensitive adhesive, considered from environment protection, the factor such as to economize on resources, in recent years Water-borne modification gradually,
Glazing film adhesive tape applies to the print protection of the printing surfaces such as printing, ink jet printing, planography; to avoid moisture content, sun damages print; but traditional glazing film emulsion acrylate tackiness agent poor water resistance, easier xanthochromia, the peeling force rolled out are heavier, easily cause white line.
A kind of glazing film emulsion adhesive has been invented for improving these shortcoming Taiwan Siwei Enterprise Co., Ltd., coat on polypropylene screen, substantially can solve the problem, but the glazing film that this tackiness agent is made is after the hot and humid encased conveying of last issue, due to superposition phenomenon, the glazing film (general length is 5000-10000m) of rolling there will be Yellowing, affect the attractive in appearance of adhesive article.
summary of the invention:
The object of the present invention is to provide a kind of preparation method of anti-xanthochromia glazing film.For achieving the above object, technical scheme of the present invention is as follows:
Anti-xanthochromia glazing film uses anti-xanthochromia emulsion-type acrylate resin, its by weight percentage, this tackiness agent is mixed by component A and B component:
The emulsion 94-96% of component A to be polyacrylic ester be main component
B component is strong reductant aqueous solution 4-6%
The formula of the component A of emulsion-type acrylate resin of the present invention comprises by the percentages accounting for component A gross weight:
Soft monomer 20-30%
Hard monomer 5-10%
Function monomer 0.5-5%
Emulsifying agent 1.2-5%
Initiator 0.1-0.3%
Oxygenant and sweetening agent 0.1-0.2%
Reductive agent 0.1-0.2%
PH adjusting agent 0.4-0.8%
Water 60%-70%
Component A forms through letex polymerization by above formula
Described soft monomer is one or more in n-butyl acrylate, Isooctyl acrylate monomer, ethyl propenoate, ethyl acrylate.Described hard monomer is one or more in methyl methacrylate, vinylbenzene, vinyl cyanide, vinyl acetate.Described function monomer be vinylformic acid, methacrylic acid, methylene-succinic acid, toxilic acid, fumaric acid, N hydroxymethyl acrylamide, Hydroxyethyl acrylate, Propylene glycol monoacrylate, glycidyl acrylate one or more.Described emulsifying agent is polyoxyethylene nonylphenol ether.Described initiator is one or both in Potassium Persulphate, ammonium persulphate.Described oxygenant is hydrogen peroxide.Described reductive agent is inferior sodium phosphate.Described pH adjusting agent is ammoniacal liquor.Described sweetening agent is hydrated barta.
Preferably, described initiator and sweetening agent add by mol ratio 1:1 proportioning.
The B component of emulsion-type acrylate resin of the present invention is mixed by strong reductant inferior sodium phosphate and water.Comprise by the percentages accounting for B component gross weight:
Inferior sodium phosphate 15-30%
Water 70-85%
The preparation method of emulsion-type acrylate resin provided by the invention comprises following processing step:
(1) by the recipe ratio of component A, the 35-40% of the 30-35% of the 20-25% of water gross weight, emulsifying agent gross weight, initiator gross weight, all soft monomer, hard monomer and function monomer emulsification 15-20min in pre-emulsification device are obtained pre-emulsion.The 30-35% of water gross weight, emulsifying agent, initiator, chain-transfer agent are added in polymerization reactor, when stirring is warming up to 25-55 DEG C, add the 40-50% of pre-emulsion weight, after reaction 30-40min, drip residue pre-emulsion, control reaction times 4h, after insulation 1h, cooling, is cooled to 70 DEG C, add oxygenant, after 5min, add reductive agent.Be cooled to 50 DEG C of dischargings.Add sweetening agent and by ammoniacal liquor adjust ph to 7-8, adding water is adjusted to 30-40% by tackiness agent solid content, filters and obtains component A.
(2), under room temperature, B component is slowly added in component A, after being uniformly mixed, obtained anti-xanthochromia emulsion-type acrylate resin of the present invention.
(3) will with RK line rod spreader pressure sensitive adhesive will be coated on super transparent BOPP film, heat up dry, curling after namely obtain tape.
The invention has the beneficial effects as follows: (1) emulsion-type acrylate resin comprises component A and a small amount of B component, after B component is slowly dissolved in component A, due to the long-term restraining effect to oxidizing reaction of the strong reductant in component (B), make polyacrylate latex grain in use by the dioxygen oxidation in air, thus can not guarantee that the adhesive coating of adhesive tape can not be oxidized to yellow.(2) emulsifying agent such as sodium laurylsulfonate or Sodium dodecylbenzene sulfonate will do not added in general preparation process containing S element in preparation process, can reduce the risk of the oxidized after yellowing of adhesive tape effectively.(3) add sweetening agent and the S element added in the initiator such as Potassium Persulphate, ammonium persulphate is become precipitation by filtering removal.In sum, the present invention by removing the possibility that S element significantly reduces glue xanthochromia in polyacrylate dispersion preparation process, prepares the later stage at glue simultaneously and adds strong reductant, finally reach good anti-xanthochromia effect.
The properties of the glazing film be prepared into this emulsion adhesive is good, and in 5 years quality guaranteed perioves, glue xanthochromia does not occur and preparation technology is simple, pollution-free, with low cost, is applicable to large-scale industrial production.
embodiment:
The embodiment below enumerated is specifically described the present invention, but the present invention is not limited in these examples.Percentage ratio (except particularly pointing out) in following examples is all weight percentage.
According to the formula of table one, component A is formed by letex polymerization.According to the formula of table two, B component is mixed in stirred at ambient temperature by water and strong reductant inferior sodium phosphate.According to the formula of table three, B component is slowly added in component A and mixes in stirred at ambient temperature, be i.e. obtained emulsion-type acrylate resin.This tackiness agent now-making-now-using, performance is best.
With RK line rod spreader by glue application on super transparent BOPP film, film thickness is 18mm, and bondline thickness is about 15mm, is warming up to 100-120 DEG C, dry after bondline thickness be about 7mm, namely obtain glazing film after curling.Glazing film is cut into wide 25mm, the batten of long 200mm, for test.And the 25mm glazing film bought from four-dimensional company is cut into wide 25mm, the batten of long 200mm, use as a comparison sample.
The formula of component A in tackiness agent:
a12%；b15%；c6%；d1%；e2%；f0.25%；g0.05%；h0.3%；i0.5%；j62.9%。
Note: a=n-butyl acrylate, b=ethyl propenoate, c=methyl methacrylate, d=vinylformic acid, e=polyoxyethylene nonylphenol ether, f=ammonium persulphate and hydrated barta, g=hydrogen peroxide, h=inferior sodium phosphate, i=Nitrogen element quality are ammoniacal liquor, the j=water of 15%.
Table one: the formula of B component in tackiness agent
Table two: the formula of emulsion-type acrylate resin
| Recipe ingredient (accounting for the weight ratio of component (A), %) | Recipe ingredient (accounting for the weight ratio of component (B), %) |
| 95 | 5 |
Table three: the properties of sample four-dimensional on sample and market in embodiment and xanthochromia performance
Note: xanthochromia performance test conditions is: temperature 70 C, humidity 95%R.H., fixed temperature and humidity uninterrupted 72 hours or 720 hours, tape width is 48mm, internal diameter 300mm, length 200m.
Claims (3)
1. a preparation method for anti-xanthochromia glazing film, is characterized in that, comprises following processing step:
The first step is the preparation of anti-xanthochromia glazing film component A: by the recipe ratio of component A, and the 35-40% of the 30-35% of the 20-25% of water gross weight, emulsifying agent gross weight, initiator gross weight, all soft monomer, hard monomer and function monomer emulsification 15-20min in pre-emulsification device are obtained pre-emulsion; The 30-35% of water gross weight, emulsifying agent, initiator, chain-transfer agent are added in polymerization reactor, when stirring is warming up to 25-55 DEG C, add the 40-50% of pre-emulsion weight, after reaction 30-40min, drip residue pre-emulsion, control reaction times 4h, after insulation 1h, cooling, is cooled to 70 DEG C, add oxygenant, after 5min, add reductive agent; Be cooled to 50 DEG C of dischargings; Add sweetening agent and by ammoniacal liquor adjust ph to 7-8, adding water is adjusted to 30-40% by tackiness agent solid content, filters and obtains component A; The formula of the component A of described anti-xanthochromia emulsion-type acrylate resin comprises by the percentages accounting for component A gross weight:
Soft monomer 45-55%
Hard monomer 2-5%
Function monomer 2-8%
Emulsifying agent 1.2-6%
Initiator 0.1-0.3%
Oxygenant and sweetening agent 0.1-0.2%
Reductive agent 0.2-0.5%
PH adjusting agent 0.4-0.8%
Water 40%-50%;
Second step is the preparation of anti-xanthochromia glazing film: under room temperature, B component is slowly added in component A, after being uniformly mixed, and obtained anti-xanthochromia emulsion-type acrylate resin of the present invention; By weight percentage, this tackiness agent is mixed by component A and B component described anti-xanthochromia emulsion-type acrylate resin:
The emulsion 94-96% of component A to be polyacrylic ester be main component
B component is strong reductant aqueous solution 4-6%;
The B component of described anti-xanthochromia emulsion-type acrylate resin is mixed by strong reductant inferior sodium phosphate and water; Comprise by the percentages accounting for B component gross weight:
Inferior sodium phosphate 15-30%
Water 70-85%;
3rd step: will with RK line rod spreader pressure sensitive adhesive will be coated on super transparent BOPP film, heat up dry, curling after namely obtain glazing film.
2. the preparation method of anti-xanthochromia glazing film as claimed in claim 1, is characterized in that, described soft monomer is one or more in n-butyl acrylate, Isooctyl acrylate monomer, ethyl propenoate, ethyl acrylate; Described hard monomer is one or more in methyl methacrylate, vinylbenzene, vinyl cyanide, vinyl acetate; Described function monomer be vinylformic acid, methacrylic acid, methylene-succinic acid, toxilic acid, fumaric acid, N hydroxymethyl acrylamide, Hydroxyethyl acrylate, Propylene glycol monoacrylate, glycidyl acrylate one or more; Described emulsifying agent is polyoxyethylene nonylphenol ether; Described initiator is one or both in Potassium Persulphate, ammonium persulphate; Described oxygenant is hydrogen peroxide; Described reductive agent is inferior sodium phosphate; Described pH adjusting agent is ammoniacal liquor; Described sweetening agent is hydrated barta.
3. the preparation method of anti-xanthochromia glazing film as claimed in claim 1 or 2, is characterized in that, described initiator and sweetening agent add by mol ratio 1:1 proportioning.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106832085A (en) * | 2016-12-31 | 2017-06-13 | 上海巴德富实业有限公司 | A kind of high temperature resistant, high rigidity acrylate and vinyl acetate emulsion of color inhibition and preparation method thereof |
| CN107815265A (en) * | 2017-11-21 | 2018-03-20 | 江门新时代包装材料有限公司 | A kind of preparation method and formula of super clear pressure-sensitive adhesive band |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102863929A (en) * | 2012-09-17 | 2013-01-09 | 马千里 | Anti-yellowing emulsion polyacrylic ester pressure-sensitive adhesive and preparation method thereof |
| CN103146326A (en) * | 2013-03-14 | 2013-06-12 | 马千里 | Emulsion type acrylic ester adhesive for anti-yellowing polishing membrane and preparation method thereof |
-
2015
- 2015-11-02 CN CN201510735841.1A patent/CN105219290A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102863929A (en) * | 2012-09-17 | 2013-01-09 | 马千里 | Anti-yellowing emulsion polyacrylic ester pressure-sensitive adhesive and preparation method thereof |
| CN103146326A (en) * | 2013-03-14 | 2013-06-12 | 马千里 | Emulsion type acrylic ester adhesive for anti-yellowing polishing membrane and preparation method thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106832085A (en) * | 2016-12-31 | 2017-06-13 | 上海巴德富实业有限公司 | A kind of high temperature resistant, high rigidity acrylate and vinyl acetate emulsion of color inhibition and preparation method thereof |
| CN107815265A (en) * | 2017-11-21 | 2018-03-20 | 江门新时代包装材料有限公司 | A kind of preparation method and formula of super clear pressure-sensitive adhesive band |
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Application publication date: 20160106 |