CN1073136C - Hot-dipping stripped plastic protective film for plastics, mfg. method and application thereof - Google Patents
Hot-dipping stripped plastic protective film for plastics, mfg. method and application thereof Download PDFInfo
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- CN1073136C CN1073136C CN98105105A CN98105105A CN1073136C CN 1073136 C CN1073136 C CN 1073136C CN 98105105 A CN98105105 A CN 98105105A CN 98105105 A CN98105105 A CN 98105105A CN 1073136 C CN1073136 C CN 1073136C
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Abstract
The present invention relates to a hot-dipping type strippable plastic protection film and a manufacturing method and the application thereof. The present invention comprises the compositions of 12 to 50 parts of ethene vinyl acetate resin by weight, 22 to 70 parts of mineral oil by weight, 0 to 40 parts of a plasticizer by weight, 0 to 1.5 parts of an anti-rust agent by weight and 0.5 to 1.0 part of an antioxidant by weight. The manufacturing method thereof comprises that raw materials are selected according to the compositions and are put into a jacket type hot melting tank for being uniformly blended and melted, products to be protected are dipped and are then taken out for cooling, and a hot-dipping type strippable plastic protection film with the thickness of about 0.5 to 3mm is formed on the surface of the products. The present invention can be used for being painted on the surfaces of metal products or measuring and cutting tools for protecting the products against rust and corrosion, and can also be used for being painted on the surfaces of fine processed products to avoid the generation of scratch. In addition, the present invention has the characteristics of low cost and use convenience.
Description
The present invention relates to plastic protective film for plastics, refer in particular to a kind of hot-dipping stripped plastic protective film for plastics and manufacture method thereof and application.
Be generally and prevent hardware, metal product, the corrosion in storage or sales process of amount of metal cutlery; its surface-coated oiliness protective layer of being everlasting covers with oilpaper again; when using member or product; remove the oilpaper of covering earlier; wipe the oiliness protective layer again; its major defect is: (1) oiliness protective layer and the outer oilpaper that covers thereof; in transportation is stored than being easier to breakage or dropping; and in long-term storage, also can take place the oiliness protective layer and outside the oilpaper that covers dry and cracked, lose the protective money metal surface not by the effect of corrosion.Must remove the oilpaper of covering when (2) using earlier, clean the oiliness protective layer again, cumbersome time-consuming; especially in the normal not free pre-treatment of doing of emergency situation; use as the member of urgent construction, or the use of modern weapons in the war, the basic not free oiliness protective layer that cleans.The protective membrane of human cellulose-based resin film as the metallic surface rust protection arranged for this reason, and its major defect is that the thickness of celluosic resin protective membrane and stripping strength are wayward, and the price comparison costliness, is not suitable for widespread use.
The object of the present invention is to provide a kind of is hot-dipping stripped plastic protective film for plastics and the manufacture method and the application of major ingredient with the ethylene-vinyl acetate resin; overcome the drawback of prior art; reach with low cost, the purpose that rust-proof effect is good and easy to use.
The object of the present invention is achieved like this: a kind of hot-dipping stripped plastic protective film for plastics, meter comprises: ethylene-vinyl acetate resin 12-50, mineral oil 22-70, softening agent 0-40, rust-preventive agent 0-1.5, oxidation inhibitor 0.5-1.0 to it is characterized in that it forming by weight.
The melting index of this ethylene-vinyl acetate resin is 2-20, and wherein the content of vinyl acetate between to for plastic is 14-32%.This mineral oil comprises machinery oil No. 10.This softening agent comprises dibutyl phthalate, dioctyl phthalate (DOP).This rust-preventive agent comprises barium mahogany sulfonate.This oxidation inhibitor comprises: 2, and the 6-toluene di-tert-butyl phenol.
Its manufacture method comprises the steps:
(2) select materials:
Composition according to plastic protective film for plastics is selected materials by weight: ethylene-vinyl acetate resin 12-50, mineral oil 22-70, softening agent 0-40, rust-preventive agent 0-1.5, oxidation inhibitor 0.5-1.0;
(3) consolute and coating:
The constitutive material of step () is put into the jacketed type hot melt tank that has temperature regulator carry out consolute; controlled temperature 160-200 ℃; after treating that consolute evenly; the product to be protected of cleaning surfaces is immersed; plastic coating on its surface-coated, dipping time are 2-10 second, take out postcooling; surface at product to be protected forms hot-dipping stripped plastic protective film for plastics, and its thickness is 0.5-3mm.
In this step (two), treat that the raw material consolute evenly after, directly cool off; make plastic protective film for plastics piece material work in-process, when needing to apply, again this is certainly expected the work in-process chopping; put into the jacketed type hot melt tank and carry out fusion, controlled temperature 160-200 ℃, treat that consolute evenly after; the product to be protected of cleaning surfaces is immersed; plastic coating on its surface-coated, dipping time are 2-10 second, take out postcooling; surface at product to be protected forms hot-dipping stripped plastic protective film for plastics, and its thickness is 0.5-3mm.
This hot-dipping stripped plastic protective film for plastics is used to be coated in metal product or amount cutlery surface, or is used to be coated in the surface of retrofit product.
Major advantage of the present invention is:
(1) hot-dipping stripped plastic protective film for plastics of the present invention is matrix with the ethylene-vinyl acetate resin; cooperate cheap mineral oil, softening agent, rust-preventive agent and oxidation inhibitor again; its cost is lower, only is 1/10th of celluosic resin protective membrane, is fit to widespread use.
(2) its tension intensity of hot-dipping stripped plastic protective film for plastics of the present invention is greater than 20kg/cm
2, unit elongation＞60% has the protection device surface and places not corrosion for a long time, does not produce the effect of scuffing.And be easy to peel off in flakes, do not have remaining film, have characteristics easy to use.
(3) manufacture method of the present invention is simple, and is cheap for manufacturing cost.
(4) hot-dipping stripped plastic protective film for plastics of the present invention can be used for metallizing product and amount cutlery surface, prevents its corrosion, or is used for the surface of coating fine converted products, prevents that it is hit or scratches.
Further specify below in conjunction with preferred embodiment.
Embodiment 1:
The composition of hot-dipping stripped plastic protective film for plastics of the present invention comprises: ethylene-vinyl acetate resin 23 grams; No. 10 machinery oil 50 grams; dibutyl phthalate 25 grams; barium mahogany sulfonate 1 gram; oxidation inhibitor 1 gram; in therein ethylene-vinyl acetate between to for plastic copolymer resins; the content of vinyl acetate between to for plastic is 30%; fusion ester number is 10; because in the copolymer resins of ethene-vinyl acetate; increase with vinyl acetate content; its adhesive power and tensile strength improve gradually; raising with the fusion fat number of resin; its molten state current downflow performance improves; film forming variable thickness is thin; therefore often according to the performance requriements of protected product, select the melting index of the content and the resin of vinyl acetate between to for plastic component in the optimal copolymer resins.In ethylene-vinyl acetate resin, sneak into the mineral grease of higher proportion; can make the surface that does not directly adhere to protected product after the plastic protective film for plastics film forming; but the surface of oil film of therefrom being separated out and protected product separates; both reached the effect of protection product surface; when peeling off protective membrane with hand when also easy to use, can peel off in flakes, not have remaining film viscous; do not need further wiping or cleaning behind the stripping, very easy to use.Add softening agent, rust-preventive agent and oxidation inhibitor for increasing plasticity, rust protection and the weather resistance of product, improve the premium properties of protective membrane.
The manufacture method of hot-dipping stripped plastic protective film for plastics of the present invention comprises: at first select materials by the composition of above-mentioned plastic protective film for plastics.Subsequently constitutive material is put into the molten groove of the jacketed type that has temperature regulator, consolute under 190 ℃ of conditions, treat that consolute evenly after; the product to be protected of cleaning surfaces is immersed; dipping time is 5 seconds, takes out postcooling, forms the thick plastic protective film for plastics of about 1mm at product surface.This protective membrane has in long-term placement or transportation protects product corrosion not to take place, be not scratched, be not easy the dry and cracked characteristics that come off, and when using product, available hand is peeled off in flakes, does not have remaining film, has advantage easily manufactured, easy to use and with low cost.
Embodiment 2:
The composition of hot-dipping stripped plastic protective film for plastics of the present invention comprises ethylene-vinyl acetate resin 30 gram, No. 10 machinery oil 40 grams, dioctyl phthalate (DOP) 28 grams, barium mahogany sulfonate 0.5 gram, oxidation inhibitor 2; 6-toluene di-tert-butyl phenol 0.5 gram; in therein ethylene-vinyl acetate between to for plastic copolymer resins; the content of vinyl acetate between to for plastic is 20%, and fusion ester number is 15.
The manufacture method of hot-dipping stripped plastic protective film for plastics of the present invention comprises at first selects materials by above-mentioned composition; subsequently constitutive material is put into the molten groove of the jacketed type that has temperature regulator; after consolute under 170 ℃ of conditions is even; can directly cool off; make plastic protective film for plastics piece material work in-process; when needing to apply; again with this piece material work in-process chopping; put into the jacketed type hot melt tank and carry out fusion; controlled temperature 160-200 ℃ treat that consolute evenly after; the product to be protected of cleaning surfaces is immersed; plastic coating on its surface-coated, dipping time are 2-10 second, take out postcooling; surface at product to be protected forms hot-dipping stripped plastic protective film for plastics, and its thickness is 0.5-3mm.
Embodiment 3:
The composition of hot-dipping stripped plastic protective film for plastics of the present invention comprises ethylene-vinyl acetate resin 15 grams, dibutyl phthalate 40 grams, barium mahogany sulfonate 0.8 gram, oxidation inhibitor 0.7 gram; in therein ethylene-vinyl acetate between to for plastic copolymer resins; the content of vinyl acetate between to for plastic is 18%, and fusion ester number is 17.
Its manufacture method is with embodiment 1 or 2, so do not repeat.
Claims (9)
1, a kind of hot-dipping stripped plastic protective film for plastics, meter comprises: ethylene-vinyl acetate resin 12-50, mineral oil 22-70, softening agent 0-40, rust-preventive agent 0-1.5, oxidation inhibitor 0.5-1.0 to it is characterized in that it forming by weight.
2, hot-dipping stripped plastic protective film for plastics according to claim 1 is characterized in that: the melting index of this ethylene-vinyl acetate resin is 2-20, and wherein the content of vinyl acetate between to for plastic is 14-32%.
3, hot-dipping stripped plastic protective film for plastics according to claim 1 is characterized in that: this mineral oil comprises machinery oil No. 10.
4, plastic protective film for plastics according to claim 1 is characterized in that: this softening agent comprises dibutyl phthalate, dioctyl phthalate (DOP).
5, hot-dipping stripped plastic protective film for plastics according to claim 1 is characterized in that: this rust-preventive agent comprises barium mahogany sulfonate.
6, plastic protective film for plastics according to claim 1 is characterized in that: this oxidation inhibitor comprises: 2, and the 6-toluene di-tert-butyl phenol.
7, the manufacture method of hot-dipping stripped plastic protective film for plastics according to claim 1 is characterized in that: this manufacture method comprises the steps:
(1) select materials:
Composition according to plastic protective film for plastics is selected materials by weight: ethylene-vinyl acetate resin 12-50, mineral oil 22-70, softening agent 0-40, rust-preventive agent 0-1.5, oxidation inhibitor 0.5-1.0;
(2) consolute and coating:
The constitutive material of step () is put into the jacketed type hot melt tank that has temperature regulator carry out consolute; controlled temperature 160-200 ℃; after treating that consolute evenly; the product to be protected of cleaning surfaces is immersed; plastic coating on its surface-coated, dipping time are 2-10 second, take out postcooling; surface at product to be protected forms hot-dipping stripped plastic protective film for plastics, and its thickness is 0.5-3mm.
8; the manufacture method of hot-dipping stripped plastic protective film for plastics according to claim 7; it is characterized in that: in this step (two); after treating that the raw material consolute evenly; directly cooling; make plastic protective film for plastics piece material work in-process; when needing to apply, with this piece material work in-process chopping, put into the jacketed type hot melt tank and carry out fusion again; controlled temperature 160-200 ℃; after treating that consolute evenly, with the product immersion to be protected of cleaning surfaces, plastic coating on its surface-coated; dipping time is 2-10 second; take out postcooling, form hot-dipping stripped plastic protective film for plastics on the surface of product to be protected, its thickness is 0.5-3mm.
9, the application of hot-dipping stripped plastic protective film for plastics according to claim 1 is characterized in that: this hot-dipping stripped plastic protective film for plastics is used to be coated in metal product or amount cutlery surface, or is used to be coated in the surface of retrofit product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN98105105A CN1073136C (en) | 1998-03-05 | 1998-03-05 | Hot-dipping stripped plastic protective film for plastics, mfg. method and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN98105105A CN1073136C (en) | 1998-03-05 | 1998-03-05 | Hot-dipping stripped plastic protective film for plastics, mfg. method and application thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1193033A CN1193033A (en) | 1998-09-16 |
| CN1073136C true CN1073136C (en) | 2001-10-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN98105105A Expired - Fee Related CN1073136C (en) | 1998-03-05 | 1998-03-05 | Hot-dipping stripped plastic protective film for plastics, mfg. method and application thereof |
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| Country | Link |
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| CN (1) | CN1073136C (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1326958C (en) * | 2004-05-20 | 2007-07-18 | 佛山市顺德区汉达精密电子科技有限公司 | Peelable coating for metal and method for making same |
| JP2006231327A (en) * | 2005-02-23 | 2006-09-07 | Inventio Ag | Method for temporary protection of blank surfaces against corrosion, and component with temporary corrosion protection |
| CN103467890B (en) * | 2013-09-18 | 2016-04-20 | 南亚塑胶工业股份有限公司 | A kind of peelable protective film and composite formula thereof |
| CN105964511A (en) * | 2016-05-17 | 2016-09-28 | 哈尔滨电机厂有限责任公司 | Technological method for removing rustproof material packing of precision-machined metal part without solvent |
| CN112775254A (en) * | 2021-01-21 | 2021-05-11 | 滁州市汇能鑫新能源科技有限公司 | Stamping process based on lithium battery cap |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1111666A (en) * | 1995-04-07 | 1995-11-15 | 清华大学 | Paint capable of removing radioactive pollution by stripping |
| CN1113510A (en) * | 1995-04-07 | 1995-12-20 | 清华大学 | Exfoliative, antipolluting and protective coating material |
| CN1172833A (en) * | 1997-06-24 | 1998-02-11 | 中国原子能科学研究院 | Strippable radioactive contamination removing coating film |
-
1998
- 1998-03-05 CN CN98105105A patent/CN1073136C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1111666A (en) * | 1995-04-07 | 1995-11-15 | 清华大学 | Paint capable of removing radioactive pollution by stripping |
| CN1113510A (en) * | 1995-04-07 | 1995-12-20 | 清华大学 | Exfoliative, antipolluting and protective coating material |
| CN1172833A (en) * | 1997-06-24 | 1998-02-11 | 中国原子能科学研究院 | Strippable radioactive contamination removing coating film |
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| Publication number | Publication date |
|---|---|
| CN1193033A (en) | 1998-09-16 |
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