CN101045836A - Use of nano silicon oxide for modifying polyethylene coating - Google Patents
Use of nano silicon oxide for modifying polyethylene coating Download PDFInfo
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- CN101045836A CN101045836A CN 200710103244 CN200710103244A CN101045836A CN 101045836 A CN101045836 A CN 101045836A CN 200710103244 CN200710103244 CN 200710103244 CN 200710103244 A CN200710103244 A CN 200710103244A CN 101045836 A CN101045836 A CN 101045836A
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Abstract
This invention relates to application of nanometer silicon oxide used in improving gassy obstructing performance of polyvinyl alcohol coating. The quantity of oxygen permeating reduce 5-time upwards, be able to satisfy demand of any products that need obstructing wrapping, and greatly prolong the quality-keeping time, supply sufficient time for products exporting.
Description
The application is dividing an application of Chinese patent application 200410034455.1 " a kind of modified PVA paint and the manufacture craft thereof " submitted on April 12nd, 2004.
The present invention relates to the purposes of nano silicon oxide for modifying polyethylene coating.
In separated packaging material, rational exploitation and utilization high barrier polymkeric substance is an effective way, these polymkeric substance are because characteristics of molecular structure, the compactness height, can effectively prevent the infiltration of gas, with its do barrier layer and other material compound after, good combination property, particularly oxygen permeating amount is low, and wherein representational have PVAC polyvinylalcohol, polyvinylidene chloride PVDC, an ETHYLENE-VINYL ALCOHOL COPOLYMER thing EVOH.Polyvinylidene chloride PVDC is the barrier material of developing the earliest, because its molecular chain unit contains two chlorine atoms, and plasticization temperature and decomposition temperature are very approaching, processing difficulties can't recycling, reclaims and produces a large amount of Dioxins HCI gas contamination atmosphere when burning, and the coating fluid that utilizes this type of material to make, be applied on the thick polypropylene PP film of 25 μ m, when coat-thickness was 2 μ m, its oxygen transit dose was 12cm
3/ m
224h0.1Mpa, oxygen transit dose height.Therefore, developed country has progressively turned to and has utilized EVOH and PVA, EVOH is the modification kind of PVA, but EVOH price comparison height, belong to polar polymer, can't be directly and the versatility material compound, must adopt adhesive resin and expensive multi-layer co-extruded equipment can produce this type of film in the production process, cost is very high, and this type of material is the same with PVA, the performance of its resistance oxygen and other gas, be subjected to humidity effect very big, add the ethene composition and the PVA polymerization that have added 30%-40% during its modification again, therefore, cause its oxygen transit dose to increase, as adopt five-layer co-squeezing equipment, it is barrier layer that EVOH is adopted in the middle level, thickness 5 μ m, other material thickness is 95 μ m, and the oxygen transit dose is 8cm
3/ m
224h0.1Mpa.PVAC polyvinylalcohol is a kind of many hydroxyls utmost point polymkeric substance, and its molecular formula is CH
2-CHOHn, water-absorbent is strong, can be water-soluble, since the effect of its intermolecular hydrogen bonding, density height, gas barrier property excellence, but its fusing point is up to 220-240 ℃, and decomposition temperature is low, 160 ℃ of beginning etherificates, 200 ℃ begin to decompose, and make it be difficult to thermoplasticity processing, commercially available PVA film at present, adopt casting method production mostly, but the shortcoming that casting method is produced is: the production cycle is long, and production efficiency is low, thickness, the quality instability, the cost height, thus limited applying of PVA film, and in the prior art, because in the material of the modified PVA that is adopted, softening agent, additions such as properties-correcting agent are excessive, make its purity drop, and oxygen permeating amount increases, at basement membrane is polypropylene PP, thickness is 25 μ m, and polyethylene coating thickness is 10 μ m, and its oxygen transit dose is 3cm
3/ m
224h0.1Mpa steam penetrating capacity is 4g/m
224h, and must adopt expensive proprietary coating machine to produce yields poorly, the energy consumption height, thus its manufacturing cost height, and its ventilation property is subjected to humidity effect big, restricted it and used widely.And adopt aluminium foil to make barrier layer, because it is opaque, so, can't be applied to the occasion that needs transparent container, moreover its price is also higher, can't satisfy the requirement of society to high-barrier class packing.
Purpose of the present invention solves above-mentioned problems of the prior art exactly, a kind of modified PVA paint and manufacture craft thereof are provided, after this coating fluid is applied to the basement membrane film forming, the transit dose of oxygen and water vapour is very low, other performances are also very superior, can satisfy needs, and prolong the quality guaranteed period of packaged product greatly the product of all needs barrier packagings.
For finishing a kind of purpose of the present invention, its technical solution is: a kind of modified PVA paint, it is made up of polyvinyl alcohol, conditioning agent, nano silicon oxide, coupling agent, tackifier and water.
Each components contents of above-mentioned described modified PVA paint (each component concentration all by weight percentage): polyvinyl alcohol is 1%-20%, conditioning agent is 1%-40%, nano silicon oxide is 0.01%-5%, coupling agent is 0.01%-0.3%, tackifier are 1%-15%, and water is 19.7%-96.98%.
The preferable range of above-mentioned described each components contents of modified PVA paint is: polyvinyl alcohol is that 8%-12%, conditioning agent are that 15%-20%, nano silicon oxide are that 0.5%-1%, coupling agent are that 0.03%-0.2%, tackifier are that 4%-6%, water are 60.8%-72.47%.
Conditioning agent in the above-mentioned described modified PVA paint component is a methyl alcohol; Ethanol; Methyl alcohol, alcoholic acid mixture.
Coupling agent in the above-mentioned described modified PVA paint component is aminosilane, titanate, hydramine titan-alkoxide acid esters, hydramine two phosphorus acyloxy second two support titanic acid ester.
Tackifier in the above-mentioned described modified PVA paint component are polymine.
Also can contain anti UV agent in the above-mentioned described modified PVA paint component, account for the 0.01%-1% of total amount, its optimum ratio scope is 0.2%-0.6%, and it is 2-hydroxyl-4-methoxyl group-5-sulfonic acid benzophenone.
Can also contain softening agent in the above-mentioned described modified PVA paint component, account for the 0.01%-1% of total amount, its optimum ratio scope is 0.2%-0.6%, and it can be glycerol, Glycerol dimer and Diethylene Glycol, polyoxyethylene glycol, polypropylene glycol, mannitol, Sorbitol Powder, tetramethylolmethane, polyglycerol.
The present invention also can add oxidation inhibitor, defoamer, tinting material, spices, tensio-active agent and nano inorganic powder etc. according to actual needs therein.
The manufacture craft of above-mentioned described modified PVA paint is: polyvinyl alcohol, conditioning agent and water are mixed into mixed liquor A; Nano silicon oxide, coupling agent and conditioning agent are mixed into mixed liquid B, with mixed liquor A with after mixing the mixed liquid B mixing that is no less than 30 minutes, heat up, stir, treat that temperature reaches 90-95 ℃ of insulation down, polyvinyl alcohol is fully dissolved after, after treating that temperature is reduced to normal temperature, add tackifier again, need to add anti UV agent, the adding anti UV agent of softening agent, softening agent, fully stir and promptly get modified PVA paint of the present invention.Also can use the surface-treated nano silicon oxide of coupling agent in present method, use this type of nano silicon oxide, can directly it be mixed simultaneously with polyvinyl alcohol, conditioning agent, water, need also can mixing simultaneously of coupling agent with coupling agent.
In the above-mentioned described modified PVA paint manufacture craft: the proportioning of polyvinyl alcohol is 1%-20%, and preferable range is: 8%-12%; The proportioning of conditioning agent is 1%-40%, and preferable range is: 15%-20%; The nano silicon oxide proportioning is 0.01%-5%, and preferable range is: 0.5%-1%; The coupling agent proportioning is 0.01%-0.3%, and preferable range is: 0.03%-0.2%; The tackifier proportioning is 1%-15%, and preferable range is: 4%-6%; The proportioning of anti UV agent is 0.01%-1%, and preferable range is: 0.2%-0.6%; The water proportioning is 19.7%-96.98%, and preferable range is: 60.8%-72.47%; The proportioning of softening agent is 0.01%-1%, and preferable range is 0.2%-0.6%; Wherein conditioning agent is divided into two groups: the conditioning agent proportioning in the mixed liquor A is 0.7%-28%, and preferable range is 12%-15%; Conditioning agent proportioning in the mixed liquid B is 0.3%-12%, and preferable range is 3%-5%.
Because the present invention has adopted such scheme, make full use of the high surfactivity of nano oxidized silicon particle, the unusual physicochemical characteristics such as coordination deficiency that three-dimensional silica structure and surface-area are big, surface energy is high, the surface is serious, the high and specific molecular structure characteristics of compactness in conjunction with polyvinyl alcohol resin can effectively prevent gas-permeable.And utilize nano silicon oxide easily and the oxygen in the macromolecular material play bonding action, improve intermolecular bonding force, simultaneously be easy to be distributed in the space of macromolecular chain again, thereby increase substantially the intensity of material, toughness, ductility, compactness, elasticity, wear resistance, water tolerance, optical characteristics, mechanism such as thermostability, by silicon oxide is carried out surface treatment, mechanical dispersion etc., make in the space of its macromolecular chain that fully is distributed to polyvinyl alcohol, thereby effectively raise the workability of polyvinyl alcohol water solution, gas barrier after the film forming, water tolerance, to the reflectivity of UV-light and infrared light, wear resistance, the cementability of polyethylene coating and basement membrane.Compared with prior art, product of the present invention is applied on the basement membrane after the film forming, and the oxygen transit dose has reduced more than 10 times, and steam penetrating capacity has reduced more than 5 times, as being the product of the present invention that applies 5 μ m thickness on the 75 μ m polythene PE basement membranes at thickness, its oxygen transit dose is 0.26cm
3/ m
224h0.1Mpa steam penetrating capacity is 0.72g/m
224h, its barrier property be near the level of aluminium foil and glass, and have very good transparency, the product of the present invention of coating 1 μ m on the thick PP basement membrane of 18 μ m, and its oxygen transit dose is 1.7cm
3/ m
224h0.1Mpa, its barrier is better than other multipolymer of the prior art far away, and manufacturing cost is than adopting EVOH to reduce nearly 10 times, 5 times have been reduced than PVDC, has very good cost/performance ratio, the penetration and promotion of this product is used, bring revolution will for whole packing business, pack with this and can make present preservation period 30 days, adopt the fresh milk of UHT sterilization, extend to more than 120 days, and outstanding fragrance protectiveness is arranged, fully can be beautiful with aluminium foil packing and glass bottle packaging ratio, and price only is 1/7th of an aluminium foil class packing, and great using value is arranged.The present invention can adopt coating machine, dry compound machine, curtain coating compounding machine that coating fluid is coated on polythene PE film, polypropylene PP film, polymeric amide PA film, polyester PET thin film, sheet material and the paper, be used to pack sealing up for safekeeping of varieties of food items, cigarette, clothes, leatherware, industrial art, manuscript archive, industrial chemicals and intermediate, medicine, precision instrument, opticinstrument, eyeglass etc. are the article of deterioration by oxidation easily.The present invention also can be used as curtain coating compound binding agent, just primary coating can be finished obstruct, bonding, combined producing tech, has reduced cost, has also saved operation one time, is 0.5g/m as adopting extruding of polyethylene film PE to apply the compound upward coating of interlayer liquid measure
2, the oxygen transit dose reaches 1.54cm
3/ m
224h0.1Mpa stripping strength reaches the ideal effect of 2N.
Below in conjunction with specific embodiment the present invention is further described.
Embodiment 1: present embodiment is made up of 20% polyvinyl alcohol, 12% ethanol, 5% nano silicon oxide, 0.3% aminosilane, 1% polymine and 61.7% water.With the polyvinyl alcohol of said ratio, water and wherein 10% ethanol be mixed into mixed liquor A; With the nano silicon oxide of said ratio, aminosilane and wherein 2% ethanol be mixed into mixed liquid B; After the mixing of 30 minutes mixed liquid B of mixed liquor A and mixing, heat up, stir, treat to be incubated when temperature reaches 90 ℃, after polyvinyl alcohol is fully dissolved, treat that temperature reduces to normal temperature, add the polymine of said ratio again, fully stir and promptly get modified PVA paint of the present invention.Be the product of the present embodiment of coating 5 μ m on the polythene PE basement membrane of 75 μ m at thickness, behind the drying and forming-film, its oxygen transit dose is 0.26cm
3/ m
224h0.1Mpa steam penetrating capacity is 0.72g/m
224h.
Embodiment 2: present embodiment is made up of 1% polyvinyl alcohol, 1% methyl alcohol, 0.01% nano silicon oxide, 0.01% titanate, 15% polymine, 82.98% water.With the polyvinyl alcohol of said ratio, water and wherein 0.7% methanol mixed become mixed liquor A; With the nano silicon oxide of said ratio, titanate and wherein 0.3% methanol mixed become mixed liquid B; Mixed liquor A and 30 minutes mixed liquid B of mixing are mixed the back intensification, stirred, insulation when treating that temperature reaches 92 ℃, polyvinyl alcohol is fully dissolved after, treat that temperature reduces to normal temperature, the polymine that adds said ratio more fully stirs and promptly gets modified PVA paint of the present invention.Be the product of the present embodiment of coating 1 μ m on the polypropylene PP basement membrane of 18 μ m at thickness, behind the drying and forming-film, its oxygen transit dose is 1.7cm
3/ m
224h0.1Mpa steam penetrating capacity is 1.2g/m
224h.
Embodiment 3: present embodiment by 12% polyvinyl alcohol, 39% methyl alcohol, alcohol mixture, 2% nano silicon oxide, 0.03% hydramine two phosphorus acyloxy second two support titanic acid ester, 6% polymine, 2-hydroxyl-4-methoxyl group-5-sulfonic acid benzophenone of 0.01%, 3% glycerol, 37.96% water form.With polyvinyl alcohol, the water of said ratio with wherein 36% methyl alcohol, alcohol mixture are mixed into mixed liquor A; With the nano silicon oxide of said ratio, hydramine two phosphorus acyloxy second, two support titanic acid ester with wherein 3% methyl alcohol, alcohol mixture are mixed into mixed liquid B; After mixed liquor A and the mixing of 30 minutes mixed liquid B of mixing, heat up, stir, treat to be incubated when temperature reaches 93 ℃, after polyvinyl alcohol is fully dissolved, treat that temperature reduces to normal temperature, the polymine, the 2-hydroxyl-4-methoxyl group-5-sulfonic acid benzophenone glycerol that add said ratio again fully stir and promptly get modified PVA paint of the present invention.Be the product of the present embodiment of coating 4 μ m on the polymeric amide PA basement membrane of 20 μ m at thickness, behind the drying and forming-film, its oxygen transit dose is 0.61cm
3/ m
224h0.1Mpa steam penetrating capacity is 086g/m
224h.
Embodiment 4: present embodiment is by 10% polyvinyl alcohol, 3% methyl alcohol, alcohol mixture, 0.5% nano silicon oxide, 0.3% hydramine, two phosphorus acyloxy second, two support titanic acid ester, 4% polymine, 2-hydroxyl-4-methoxyl group-5-sulfonic acid benzophenone of 1%, 2% Sorbitol Powder and 79.2% water are formed.With polyvinyl alcohol, the water of said ratio with wherein 2.3% methyl alcohol, alcohol mixture are mixed into mixed liquor A; With the nano silicon oxide of said ratio, hydramine two phosphorus acyloxy second, two support titanic acid ester with wherein 0.7% methyl alcohol, alcohol mixture are mixed into mixed liquid B; After mixed liquor A and the mixing of 30 minutes mixed liquid B of mixing, heat up, stir, treat to be incubated when temperature reaches 94 ℃, after polyvinyl alcohol is fully dissolved, treat that temperature reduces to normal temperature, the polymine, 2-hydroxyl-4-methoxyl group-5-sulfonic acid benzophenone, the Sorbitol Powder that add said ratio again fully stir and promptly get modified PVA paint of the present invention.Be the product of the present embodiment of coating 3 μ m on the polyester PET basement membrane of 20 μ m at thickness, behind the drying and forming-film, its oxygen transit dose is 0.9cm
3/ m
224h0.1Mpa steam penetrating capacity is 1.1g/m
224h.
Embodiment 5: present embodiment is made up of 7% polyvinyl alcohol, 40% methyl alcohol, 0.04% nano silicon oxide, 0.01% aminosilane, 1.5% polymine, 1% mannitol and 50.45% water.With the polyvinyl alcohol of said ratio, water and wherein 37% methanol mixed become mixed liquor A; With the nano silicon oxide of said ratio, aminosilane and wherein 3% methanol mixed become mixed liquid B; After mixed liquor A and the mixed liquid B of mixing 30 minutes mixed, heat up, stir, insulation when treating that temperature reaches 95 ℃, after polyvinyl alcohol is fully dissolved, treat that temperature reduces to normal temperature, add polymine, the mannitol of said ratio again, fully stir and promptly get modified PVA paint of the present invention.At thickness is the product that gathers the present embodiment of coating 2 μ m on the third PP basement membrane of 25 μ m, and behind the drying and forming-film, its oxygen transit dose is 3.55cm
3/ m
224h0.1Mpa steam penetrating capacity is 1.4g/m
224h.
Embodiment 6: present embodiment is made up of 15% polyvinyl alcohol, 40% ethanol, 0.05% nano silicon oxide, 0.3% hydramine titan-alkoxide acid esters, 1% polymine, 2-hydroxyl-4-methoxyl group-5-sulfonic acid benzophenone of 0.3% and 43.35% water.With the polyvinyl alcohol of said ratio, water and wherein 37% ethanol be mixed into mixed liquor A; With the nano silicon oxide of said ratio, hydramine titan-alkoxide acid esters and wherein 3% ethanol be mixed into mixed liquid B; After mixed liquor A and the mixing of 30 minutes mixed liquid B of mixing, heat up, stir, treat to be incubated when temperature reaches 95 ℃, polyvinyl alcohol is fully dissolved, treat that temperature reduces to normal temperature, the polymine, the 2-hydroxyl-4-methoxyl group-5-sulfonic acid benzophenone that add said ratio again fully stir and promptly get modified PVA paint of the present invention.Be the product of the present embodiment of coating 5 μ m on the paper-based membrane of 90 μ m at thickness, behind the drying and forming-film, its oxygen transit dose is 0.8cm
3/ m
224h0.1Mpa steam penetrating capacity is 0.96g/m
224h.
Embodiment 7: present embodiment is made up of the surface-treated nano silicon oxide of 18% polyvinyl alcohol, 5% ethanol, 3% coupling agent, 0.2% polymine, 73.8% water.With the polyvinyl alcohol of said ratio, ethanol with after the surface-treated nano silicon oxide of coupling agent and aminosilane have mixed, heat up, stir, treat to be incubated when temperature reaches 90-95 ℃, after polyvinyl alcohol is fully dissolved, treat that temperature reduces to normal temperature, the polymine that adds said ratio more fully stirs and promptly gets modified PVA paint of the present invention.Be the product of the present embodiment of coating 2 μ m on the polypropylene PP basement membrane of 25 μ m at thickness, behind the drying and forming-film, its oxygen transit dose is 4.8cm
3/ m
224h0.1Mpa steam penetrating capacity is 1.3g/m
224h.
Embodiment 8: present embodiment is that 1% glycerol and 56.9% water are formed by 8% polyvinyl alcohol, 20% ethanol, the 1.5% surface-treated nano silicon oxide of coupling agent, 12% polymine, 2-hydroxyl-4-methoxyl group-5-sulfonic acid benzophenone of 0.6%.With the polyvinyl alcohol of said ratio, water, methyl alcohol with after the surface-treated nano silicon oxide of coupling agent has mixed, heat up, stir, be incubated when temperature reaches 93 ℃, after polyvinyl alcohol is fully dissolved, after treating that temperature is reduced to normal temperature, the polymine, the 2-hydroxyl-4-methoxyl group-5-sulfonic acid benzophenone that add said ratio again, glycerol fully stirs and promptly gets modified PVA paint of the present invention.Be the product of the present embodiment of coating 3 μ m on the polypropylene PP basement membrane of 65 μ m at thickness, behind the drying and forming-film, its oxygen transit dose is 0.75cm
3/ m
224h0.1Mpa steam penetrating capacity is 1.1g/m
224h.
Embodiment 9: present embodiment is made up of the surface-treated nano silicon oxide of 8% polyvinyl alcohol, 15% methyl alcohol, alcohol mixture, 2% coupling agent, 0.1% hydramine two phosphorus acyloxy second two support titanic acid ester, 2% polymine and 72.9% water.With polyvinyl alcohol, water and the methyl alcohol of said ratio, alcohol mixture, after surface-treated nano silicon oxide, the hydramine two phosphorus acyloxy second two support titanic acid ester of coupling agent are mixed, heat up, stir, insulation when temperature reaches 92 ℃, after polyvinyl alcohol is fully dissolved, treat that temperature reduces to normal temperature, add the polymine of said ratio again, fully stir and promptly get nano silicon-based oxide modified PVA paint of the present invention.Be the product of the present embodiment of coating 5 μ m on the polypropylene PP basement membrane of 25 μ m at thickness, behind the drying and forming-film, its oxygen transit dose is 0.31cm
3/ m
224h0.1Mpa steam penetrating capacity is 0.78g/m
224h.
Embodiment 10: present embodiment is made up of the surface-treated nano silicon oxide of 8% polyvinyl alcohol, 30% ethanol, 2% coupling agent, 1% Sorbitol Powder, 2% polymine and 57% water.With the polyvinyl alcohol of said ratio, water, ethanol with after the surface-treated nano silicon oxide of coupling agent has mixed, heat up, stir, temperature reaches 94 ℃ of insulations, after polyvinyl alcohol is fully dissolved, after treating that temperature is reduced to normal temperature, add polymine, the Sorbitol Powder of said ratio again, fully stir and promptly get nano silicon-based oxide modified PVA paint of the present invention.Be the product of the present embodiment of coating 2 μ m on the polymeric amide PA basement membrane of 20 μ m at thickness, behind the drying and forming-film, its oxygen transit dose is 2.4cm
3/ m
224h0.1Mpa steam penetrating capacity is 1.2g/m
224h.
Claims (9)
1. nano silicon oxide is used to improve the purposes of the gas barrier property of polyethylene coating.
2. the purposes of claim 1, wherein said nano silicon oxide passes through coupling agent treatment in advance.
3. the purposes of claim 1, wherein polyethylene coating is used for the milk pack of UHT sterilization.
4. each purposes of claim 1-3, wherein polyethylene coating is obtained by PVA paint, and this PVA paint contains polyvinyl alcohol, conditioning agent, nano silicon oxide, optional coupling agent, tackifier and water.
5. the purposes of claim 4, wherein this PVA paint contains the polyvinyl alcohol of 1-20wt%, the water of 19.7-96.98wt%, the conditioning agent of 1-40wt%, the nano silicon oxide of 0.01-5wt%, the coupling agent of 0.01-0.3wt% and the tackifier of 1-15wt%.
6. the purposes of claim 5, wherein this PVA paint contains the polyvinyl alcohol of 8-12wt%, the water of 60.8-72.47wt%, the conditioning agent of 15-20wt%, the nano silicon oxide of 0.5-1wt%, the coupling agent of 0.03-0.2wt% and the tackifier of 4-6wt%.
7. claim 5 or 6 purposes, wherein coupling agent is selected from aminosilane, titanate, hydramine titan-alkoxide acid esters or hydramine two phosphorus acyloxy titanic acid ester; Tackifier are selected from polymine; Conditioning agent is selected from methyl alcohol, ethanol or their mixture.
8. the purposes of claim 4, wherein this PVA paint also contains anti UV agent.
9. the purposes of claim 4, wherein this PVA paint also contains softening agent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710103244 CN101045836A (en) | 2003-08-30 | 2004-04-12 | Use of nano silicon oxide for modifying polyethylene coating |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN03157604 | 2003-08-30 | ||
| CN03157604.4 | 2003-08-30 | ||
| CN 200710103244 CN101045836A (en) | 2003-08-30 | 2004-04-12 | Use of nano silicon oxide for modifying polyethylene coating |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100344551A Division CN1328337C (en) | 2003-08-30 | 2004-04-12 | Modified polyvingl alcohol coating liquid and its manufucturing technology |
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| Publication Number | Publication Date |
|---|---|
| CN101045836A true CN101045836A (en) | 2007-10-03 |
Family
ID=38770765
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| Application Number | Title | Priority Date | Filing Date |
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| CN 200710103244 Pending CN101045836A (en) | 2003-08-30 | 2004-04-12 | Use of nano silicon oxide for modifying polyethylene coating |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104341882A (en) * | 2013-07-27 | 2015-02-11 | 安徽顺彤包装材料有限公司 | Polyvinyl alcohol high-barrier coating liquid |
| CN104341883A (en) * | 2013-07-27 | 2015-02-11 | 安徽顺彤包装材料有限公司 | Coating liquid possessing waterproof effect |
| CN106368076A (en) * | 2016-09-29 | 2017-02-01 | 芜湖市三山区绿色食品产业协会 | High-barrier composite food packaging film and preparation method thereof |
| CN106436474A (en) * | 2016-09-29 | 2017-02-22 | 芜湖市三山区绿色食品产业协会 | High-strength compound food packaging film and preparation method thereof |
| CN114379182A (en) * | 2021-11-26 | 2022-04-22 | 江阴市申美包装材料有限公司 | Biscuit packaging film and preparation method thereof |
| CN114539586A (en) * | 2022-04-27 | 2022-05-27 | 河南银金达新材料股份有限公司 | Surface treatment production process of polymer film |
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2004
- 2004-04-12 CN CN 200710103244 patent/CN101045836A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104341882A (en) * | 2013-07-27 | 2015-02-11 | 安徽顺彤包装材料有限公司 | Polyvinyl alcohol high-barrier coating liquid |
| CN104341883A (en) * | 2013-07-27 | 2015-02-11 | 安徽顺彤包装材料有限公司 | Coating liquid possessing waterproof effect |
| CN106368076A (en) * | 2016-09-29 | 2017-02-01 | 芜湖市三山区绿色食品产业协会 | High-barrier composite food packaging film and preparation method thereof |
| CN106436474A (en) * | 2016-09-29 | 2017-02-22 | 芜湖市三山区绿色食品产业协会 | High-strength compound food packaging film and preparation method thereof |
| CN106368076B (en) * | 2016-09-29 | 2018-06-15 | 芜湖市三山区绿色食品产业协会 | High-barrier composite food package film and preparation method thereof |
| CN114379182A (en) * | 2021-11-26 | 2022-04-22 | 江阴市申美包装材料有限公司 | Biscuit packaging film and preparation method thereof |
| CN114539586A (en) * | 2022-04-27 | 2022-05-27 | 河南银金达新材料股份有限公司 | Surface treatment production process of polymer film |
| CN114539586B (en) * | 2022-04-27 | 2022-07-19 | 河南银金达新材料股份有限公司 | Surface treatment production and detection process of polymer film |
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