CN100343348C - Hot sealing coating for calorifier aluminum foil, and its preparation method and coating method - Google Patents
Hot sealing coating for calorifier aluminum foil, and its preparation method and coating method Download PDFInfo
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- CN100343348C CN100343348C CNB2005101229131A CN200510122913A CN100343348C CN 100343348 C CN100343348 C CN 100343348C CN B2005101229131 A CNB2005101229131 A CN B2005101229131A CN 200510122913 A CN200510122913 A CN 200510122913A CN 100343348 C CN100343348 C CN 100343348C
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Abstract
The present invention discloses a heat-sealing coating for heater aluminum foil and a preparation and a coating methods thereof. The components of the coating are ternary chlorine vinegar resins with carboxyl, butyl methacrylate, dioctyl phthalate, butanone and ethyl acetate. The present invention comprises the preparation method that the ternary chlorine vinegar resins with carboxyl are firstly manufactured; the raw materials are added in a high-speed dispersion machine for stir and dissolution according to the mixture ratio; the heat-sealing coating can be manufactured after all the resins are homogeneously and consistently dissolved. The present invention has a coating process that the ethyl acetate is used for diluting the heat-sealing coating; blue dyes are added in for homogeneous stir; a net roller coating method is adopted for coating; solidification is carried out after the coating. The present invention has the advantages of strong cohesive force of a PVC heating wire and the aluminum foil, bend resistance, water resistance, heat resistance and a good cold-heat resistant cycle. Compared with the sandwich type structure of the aluminum foil, the heating wire and the aluminum foil, the present invention has the advantages of lower product cost, simple heater manufacture process and more reliable and safer performance.
Description
One, technical field
The present invention relates to a kind of refrigerator, heating floor or toilet calorifier aluminum foil material and preparation method thereof, particularly a kind of hot sealing coating for calorifier aluminum foil and preparation and coating process.
Two, background technology
Along with the development of refrigerator industry and the raising of living standards of the people, Defrost technology for refrigerator has had further development, abroad refrigerator of making such as (Japan state) almost all adopts the calorifier aluminium foil to form heater, to substitute the old-fashioned well heater that adds auxiliary electrical stopband or aluminium foil, heating line, aluminium foil sandwich style, realize the defrosting electronization, and safety performance there has been sufficient assurance.The calorifier aluminium foil is at surface coated one deck polyvinyl chloride thermoplastically of optical aluminum foil heat-sealing coating, and this coating requires bonding force good with aluminium foil, and can with polyvinyl chloride (PVC) the line heat-seal bond of generating heat, to form the generating component of various structures.For reaching described requirement, hot sealing coating for calorifier aluminum foil is most important, and the method for its coating also is important factor, but at present the used heat sealable coating of calorifier aluminium foil and the method for coating also do not reach requirement.
Three, summary of the invention
1, goal of the invention: the present invention seeks to deficiency at the prior art existence, propose a kind ofly to improve bonding force between aluminium foil and the PVC heating-wire, thereby have resistance to bend(ing), thermotolerance, hot sealing coating for calorifier aluminum foil and preparation and coating process that water tolerance is stronger by heat sealable coating.
2, technical scheme: for achieving the above object, heat-sealing coating of the present invention is characterized in that the component of this coating and weight proportion are: band carboxyl ternary vinyl chloride-vinyl acetate resin 5～20%, butyl methacrylate 10～20%, dioctyl phthalate 0.5～5%, butanone 30～45%, vinyl acetic monomer 30～45%;
Wherein: the component and the weight proportion of band carboxyl ternary vinyl chloride-vinyl acetate resin are: vinylchlorid 15～36%, vinyl acetate between to for plastic 1～12%, Kunshun butene two acid mono-character ester 0.1～1.5%, distilled water 60～80%, dibenzoyl peroxide 0.1～0.5%, sodium bicarbonate 0.1～0.5%, polyvinyl alcohol 0.01～0.1%, trieline 0.1～0.5%.
Heat-sealing preparation method for coating of the present invention is characterized in that this method may further comprise the steps:
(1) preparation of band carboxyl ternary vinyl chloride-vinyl acetate resin: clean autoclave and agitator with distilled water, above-mentioned other component except that vinylchlorid is joined in the autoclave, cover tight charging opening, logical nitrogen flooding is evicted air in the still from, adds vinylchlorid by the high-pressure charging mouth, finishes to start the agitator stirring, slowly be warmed up to 40～80 ℃, insulation, discharging when reacting kettle inner pressure drops to 2～5Pa, washing, oven dry promptly make.
(2) component with top described heat-sealing coating joins in the high speed dispersor by described proportioning, carries out stirring and dissolving then, treats to get final product after resin all dissolves uniformity.
The present invention has carried out modification to the ternary vinyl chloride-vinyl acetate resin, and its performance is reached: under the prerequisite that keeps dissolving resin, snappiness and erosion resistance, increase the sticking power of filming with the aluminium foil base material, improve the compatibility with other resin.
The present invention has introduced acrylic resin in heat sealable formulation for coating material, improved adhesive force of coatings, and temperature tolerance, water tolerance and weathering resistance.
The coating process of heat sealable coating of the present invention comprises three aspects of pre-treatment, coating method, condition of cure of aluminium foil.Specifically:
The pre-treatment of aluminium foil is for other residues such as the grease of removing aluminium foil surface, aluminium ashes, improves adhesive force of coatings., surface cleaning thin at the calorifier aluminum foil thickness requires the characteristics high, that tensile strength is low, and the present invention adopts corona treatment technology that aluminium foil is carried out oil removing, improves the aluminium foil surface situation by plasma body.
Coating method, the selection of its mode is most important to obtaining the coating that coating is even, thickness is suitable, performance is qualified.The present invention adopts net roller coating method, and (45～65 line/inches, promptly 1.8～2.6 lines/mm) guarantee that coat-thickness keeps uniformity by selecting the rational net roller degree of depth (150～200 μ) and line number.Heat-sealing coating dilutes with vinyl acetic monomer before the coating of last machine, and adds blue dye and stir, and coating concentration is diluted to 15～30%.
Condition of cure directly influences outward appearance, sticking power and the performance index thereof of coating.The present invention determines that solidification value is that 100～250 ℃, set time are 10～30S, can guarantee the performance index that coating is up to specification.
3, beneficial effect: the present invention compared with prior art, its remarkable advantage is:
(1) PVC heating line and aluminium foil cohesive force are stronger, and resistance to bend(ing), water tolerance, thermotolerance, cold-resistant heat cycle are good.
(2) compare with aluminium foil, heating line, aluminium foil sandwiched type structure, greatly reduce product cost.And it is simple to make well heater technology, more reliable performance, safer.
Calorifier of the present invention is as follows with the aluminium foil the key technical indexes:
| Project | Index | Detection method |
| The heat-sealing peeling force | ≥600g | Heat-sealing back normal temperature is peeled off |
| Resistance to bend(ing) | Do not come off | Clamp with the 10mm rod, carry out 20 times 180 alternately upsets of degree |
| The cold and hot cycle | ? ≥400g | After 25 cycles (30 ± 2 ℃, respectively placing 1 hour under 100 ± 3 ℃ of temperature was 1 cycle), survey peeling force |
| High thermal resistance | ≥400g | 130 ± 5 ℃ of heat were surveyed peeling force after 3 hours |
| Water tolerance | ≥400g | Soak in 100 ± 5 ℃ of water after 3 hours, survey peeling force |
Four, embodiment
Embodiment 1: heat-sealing coating composition and proportioning (weight %) are: band carboxyl ternary vinyl chloride-vinyl acetate resin 10, butyl methacrylate 19, dioctyl phthalate 1, butanone 40, vinyl acetic monomer 30.
Wherein: the component and the proportioning (weight %) of band carboxyl ternary vinyl chloride-vinyl acetate resin are: vinylchlorid 20, vinyl acetate between to for plastic 9, Kunshun butene two acid mono-character ester 0.5, distilled water 70, dibenzoyl peroxide 0.1, sodium bicarbonate 0.2, polyvinyl alcohol 0.02, trieline 0.18.
The preparation method of heat-sealing coating is:
1, the preparation of band carboxyl ternary vinyl chloride-vinyl acetate resin: clean autoclave and agitator with distilled water, above-mentioned other component except that vinylchlorid is joined in the autoclave, cover tight charging opening, logical nitrogen flooding is evicted air in the still from.Add vinylchlorid by the high-pressure charging mouth, finish and start the agitator stirring, slowly be warmed up to 50 ℃, insulation.Discharging when reacting kettle inner pressure drops to 2Pa, washing, oven dry promptly make.
2, the component with top described heat-sealing coating joins in the high speed dispersor by described proportioning, carries out stirring and dissolving then, treats to get final product after resin all dissolves uniformity.
The coating process of heat-sealing coating is:
At first aluminium foil surface is carried out cleaning and handle, adopt net roller coating method then, the net roller degree of depth is 160 μ, and the line number is 50 line/inches (i.e. 2.0 lines/mm).Coating is diluted to concentration 15% with vinyl acetic monomer, and the adding blue dye stirs.Solidification value is 150 ℃, and be 20S set time.
Embodiment 2: heat-sealing coating composition and proportioning (weight %) are: band carboxyl ternary vinyl chloride-vinyl acetate resin 15, butyl methacrylate 15, dioctyl phthalate 2, butanone 30, vinyl acetic monomer 38.
Wherein: the component and the proportioning (weight %) of band carboxyl ternary vinyl chloride-vinyl acetate resin are: vinylchlorid 30, vinyl acetate between to for plastic 8, Kunshun butene two acid mono-character ester 1.5, distilled water 60, dibenzoyl peroxide 0.2, sodium bicarbonate 0.1, polyvinyl alcohol 0.1, trieline 0.1.
The preparation method of heat-sealing coating is:
1, the preparation of band carboxyl ternary vinyl chloride-vinyl acetate resin: clean autoclave and agitator with distilled water, other component except that vinylchlorid is joined in the autoclave, cover tight charging opening, logical nitrogen flooding is evicted air in the still from.Add vinylchlorid by the high-pressure charging mouth, finish and start the agitator stirring, slowly be warmed up to 70 ℃, insulation.Discharging when reacting kettle inner pressure drops to 4Pa, washing, oven dry promptly make.
2, the component with top described heat-sealing coating joins in the high speed dispersor by described proportioning, carries out stirring and dissolving then, treats to get final product after resin all dissolves uniformity.
The coating process of heat-sealing coating is:
Adopt net roller coating method, the net roller degree of depth is 180 μ, and the line number is 60 line/inches (i.e. 2.4 lines/mm).Coating concentration is diluted to 25%.Solidification value is 200 ℃, and be 15S set time.
Embodiment 3: heat-sealing coating composition and proportioning (weight %) are: band carboxyl ternary vinyl chloride-vinyl acetate resin 5, butyl methacrylate 10, dioctyl phthalate 5, butanone 45, vinyl acetic monomer 35.
Wherein: the component and the proportioning (weight %) of band carboxyl ternary vinyl chloride-vinyl acetate resin are: vinylchlorid 36, vinyl acetate between to for plastic 1, Kunshun butene two acid mono-character ester 0.45, distilled water 61, dibenzoyl peroxide 0.5, sodium bicarbonate 0.5, polyvinyl alcohol 0.05, trieline 0.5.
The preparation method of heat-sealing coating is:
1, the preparation of band carboxyl ternary vinyl chloride-vinyl acetate resin: clean autoclave and agitator with distilled water, other component except that vinylchlorid is joined in the autoclave, cover tight charging opening, logical nitrogen flooding is evicted air in the still from.Add vinylchlorid by the high-pressure charging mouth, finish and start the agitator stirring, slowly be warmed up to 80 ℃, insulation.Discharging when reacting kettle inner pressure drops to 5Pa, washing, oven dry promptly make.
2, the component with top described heat-sealing coating joins in the high speed dispersor by described proportioning, carries out stirring and dissolving then, treats to get final product after resin all dissolves uniformity.
The coating process of heat-sealing coating is:
Adopt net roller coating method, the net roller degree of depth is 200 μ, and the line number is 45 line/inches (i.e. 1.8 lines/mm).Coating concentration is diluted to 30%.Solidification value is 100 ℃, and be 30S set time.
Embodiment 4: heat-sealing coating composition and proportioning (weight %) are: band carboxyl ternary vinyl chloride-vinyl acetate resin 20, butyl methacrylate 10, dioctyl phthalate 0.5, butanone 35, vinyl acetic monomer 34.5.
Wherein: the component and the proportioning (weight %) of band carboxyl ternary vinyl chloride-vinyl acetate resin are: vinylchlorid 15, vinyl acetate between to for plastic 12, Kunshun butene two acid mono-character ester 0.1, distilled water 72, dibenzoyl peroxide 0.3, sodium bicarbonate 0.4, polyvinyl alcohol 0.01, trieline 0.19.
The preparation method of heat-sealing coating is:
1, the preparation of band carboxyl ternary vinyl chloride-vinyl acetate resin: clean autoclave and agitator with distilled water, other component except that vinylchlorid is joined in the autoclave, cover tight charging opening, logical nitrogen flooding is evicted air in the still from.Add vinylchlorid by the high-pressure charging mouth, finish and start the agitator stirring, slowly be warmed up to 40 ℃, insulation.Discharging when reacting kettle inner pressure drops to 3Pa, washing, oven dry promptly make.
2, the component with top described heat-sealing coating joins in the high speed dispersor by described proportioning, carries out stirring and dissolving then, treats to get final product after resin all dissolves uniformity.
The coating process of heat-sealing coating is: adopt net roller coating method, the net roller degree of depth is 150 μ, and the line number is 65 line/inches (i.e. 2.6 lines/mm).Coating concentration is diluted to 20%.Solidification value is 250 ℃, and be 10S set time.
Claims (3)
1, a kind of hot sealing coating for calorifier aluminum foil is characterized in that the component of this coating and weight proportion are: band carboxyl ternary vinyl chloride-vinyl acetate resin 5～20%, butyl methacrylate 10～20%, dioctyl phthalate 0.5～5%, butanone 30～45%, vinyl acetic monomer 30～45%;
Wherein: the component and the weight proportion of band carboxyl ternary vinyl chloride-vinyl acetate resin are: vinylchlorid 15～36%, vinyl acetate between to for plastic 1～12%, Kunshun butene two acid mono-character ester 0.1～1.5%, distilled water 60～80%, dibenzoyl peroxide 0.1～0.5%, sodium bicarbonate 0.1～0.5%, polyvinyl alcohol 0.01～0.1%, trieline 0.1～0.5%.
2, the preparation method of hot sealing coating for calorifier aluminum foil as claimed in claim 1 is characterized in that this method may further comprise the steps:
(1) cleans autoclave and agitator with distilled water, vinyl acetate between to for plastic, Kunshun butene two acid mono-character ester, distilled water, dibenzoyl peroxide, sodium bicarbonate, polyvinyl alcohol and trieline are joined in the autoclave, cover tight charging opening, logical nitrogen flooding is evicted air in the still from, adds vinylchlorid by the high-pressure charging mouth, finishes to start the agitator stirring, slowly be warmed up to 40～80 ℃, insulation, discharging when reacting kettle inner pressure drops to 2～5Pa, washing, oven dry promptly make band carboxyl ternary vinyl chloride-vinyl acetate resin;
(2) component with described heat-sealing coating joins in the high speed dispersor by described proportioning, carries out stirring and dissolving then, treats can make heat-sealing coating after resin all dissolves uniformity.
3, the coating process of hot sealing coating for calorifier aluminum foil as claimed in claim 1 is characterized in that this method may further comprise the steps:
(1) aluminium foil surface being carried out cleaning handles;
(2) with vinyl acetic monomer dilution heat-sealing coating, making its concentration is 15～30%, and the adding blue dye stirs;
(3) adopt net roller coating method to apply, the net roller degree of depth is 150～200 μ, and the line number is 1.8～2.6 lines/mm;
(4) be cured after applying, solidification value is that 100～250 ℃, set time are 10～30S.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005101229131A CN100343348C (en) | 2005-12-07 | 2005-12-07 | Hot sealing coating for calorifier aluminum foil, and its preparation method and coating method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005101229131A CN100343348C (en) | 2005-12-07 | 2005-12-07 | Hot sealing coating for calorifier aluminum foil, and its preparation method and coating method |
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| Publication Number | Publication Date |
|---|---|
| CN1800279A CN1800279A (en) | 2006-07-12 |
| CN100343348C true CN100343348C (en) | 2007-10-17 |
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| CNB2005101229131A Active CN100343348C (en) | 2005-12-07 | 2005-12-07 | Hot sealing coating for calorifier aluminum foil, and its preparation method and coating method |
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| CN104559516B (en) * | 2014-12-26 | 2017-11-07 | 上海维凯光电新材料有限公司 | It is adapted to thermoplastic coating that tinplate is sealed with aluminium foil and preparation method thereof |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0364304A (en) * | 1989-08-01 | 1991-03-19 | Toyo Kasei Kogyo Kk | New hydroxylated chlorinated ethylene-vinyl acetate copolymer and its preparation |
| CN1095398A (en) * | 1993-05-22 | 1994-11-23 | 连云港中金医药包装有限公司 | A kind of making method of aluminium-plastics hot-fusible binder |
| JPH0841211A (en) * | 1994-07-27 | 1996-02-13 | Nippon Paper Ind Co Ltd | Production of chloroethylene-vinyl acetate copolymer resin solid product |
| CN1181404A (en) * | 1997-10-20 | 1998-05-13 | 常州市兴荣机电制造有限公司 | Film-forming agent for hydrophilic and corrosion resistant film, its precoated film aluminium foil and film forming method |
| CN1389506A (en) * | 2002-07-18 | 2003-01-08 | 上海天原集团天原化工有限公司 | Prepn. of vinyl chloride-vinyl acetate copolymer resin |
| CN1645032A (en) * | 2004-07-15 | 2005-07-27 | 袁宏伟 | Rapid curing and safety fireworks pellet lead positioned glue and use thereof |
| CN1654571A (en) * | 2005-01-24 | 2005-08-17 | 连云港中金医药包装有限公司 | Functional primer and its preparing process |
-
2005
- 2005-12-07 CN CNB2005101229131A patent/CN100343348C/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0364304A (en) * | 1989-08-01 | 1991-03-19 | Toyo Kasei Kogyo Kk | New hydroxylated chlorinated ethylene-vinyl acetate copolymer and its preparation |
| CN1095398A (en) * | 1993-05-22 | 1994-11-23 | 连云港中金医药包装有限公司 | A kind of making method of aluminium-plastics hot-fusible binder |
| JPH0841211A (en) * | 1994-07-27 | 1996-02-13 | Nippon Paper Ind Co Ltd | Production of chloroethylene-vinyl acetate copolymer resin solid product |
| CN1181404A (en) * | 1997-10-20 | 1998-05-13 | 常州市兴荣机电制造有限公司 | Film-forming agent for hydrophilic and corrosion resistant film, its precoated film aluminium foil and film forming method |
| CN1389506A (en) * | 2002-07-18 | 2003-01-08 | 上海天原集团天原化工有限公司 | Prepn. of vinyl chloride-vinyl acetate copolymer resin |
| CN1645032A (en) * | 2004-07-15 | 2005-07-27 | 袁宏伟 | Rapid curing and safety fireworks pellet lead positioned glue and use thereof |
| CN1654571A (en) * | 2005-01-24 | 2005-08-17 | 连云港中金医药包装有限公司 | Functional primer and its preparing process |
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| CN1800279A (en) | 2006-07-12 |
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Address after: 215500 Baimaixi, Guli Town, Changshu City, Jiangsu Province Patentee after: Jiangsu Changaluminium Group Co., Ltd. Address before: 215500 Yushan North Road, Changshu City, Jiangsu Province, 29 Patentee before: Jiangsu Alcha Aluminium Co., Ltd. |