CN108410286A - A kind of coating fluid and preparation method thereof being used to prepare high-barrier water boiling resistance film - Google Patents
A kind of coating fluid and preparation method thereof being used to prepare high-barrier water boiling resistance film Download PDFInfo
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- CN108410286A CN108410286A CN201810256310.8A CN201810256310A CN108410286A CN 108410286 A CN108410286 A CN 108410286A CN 201810256310 A CN201810256310 A CN 201810256310A CN 108410286 A CN108410286 A CN 108410286A
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D129/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an alcohol, ether, aldehydo, ketonic, acetal, or ketal radical; Coating compositions based on hydrolysed polymers of esters of unsaturated alcohols with saturated carboxylic acids; Coating compositions based on derivatives of such polymers
- C09D129/02—Homopolymers or copolymers of unsaturated alcohols
- C09D129/04—Polyvinyl alcohol; Partially hydrolysed homopolymers or copolymers of esters of unsaturated alcohols with saturated carboxylic acids
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
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Abstract
The invention discloses a kind of PVA paints and preparation method thereof being used to prepare high-barrier water boiling resistance film, are made of the raw material of following parts by weight meter：3~12 parts of polyvinyl alcohol, 75~95 parts of water, 0.6~3.5 part of crosslinking agent, 0.1~2 part of antifoaming agent, 0.1~1 part of levelling agent, 0.05~1 part of dispersant, 0.01~0.5 part of catalyst, 5~15 parts of conditioning agent, 0.1~3.0 part of nano particle.Compared with prior art, the present invention haing the following advantages：(1) coating fluid exists with high transparency low viscosity state, weakly acidic, corrosion-free to equipment, environmentally friendly and simple for process；(2) coating layer thickness is thin, and rate of drying is fast, high with substrate surface adhesion strength, and barrier property is excellent；(3) viscosity stabilization, viscosity is suitble to long term storage to use without significant change in 2 months；(4) excellent water resistance, 100 DEG C of boiling 60min, coated film barrier property keep good.
Description
Technical field
The present invention relates to a kind of PVA paints and preparation method thereof of crosslinked modification, and it is resistance to be used to prepare high-barrier
Boiling packing film.
Background technology
The barrier property of material typically refers to be that material makees the barrier of oxygen and vapor under defined temperature and humidity
With barrier property is one of important indicator of packaging material.Food, drug etc. during storage, the presence or absence of oxygen and dense
Degree size is to influence the key factor of its shelf life, and in recent years, high-barrier plastic package material demand constantly increases.
Currently, domestic high-barrier packaging material mainly has aluminium foil, metallized film, EVOH five-layer co-squeezings film, PVDC coatings thin
Film.
Aluminium foil and metallized film have excellent resistance oxygen, a block-water performance, but disadvantage is that film is opaque, folding
Property is poor, of high cost, is not easily recycled utilization.The non-degradable for causing substantial amounts is widely used in aluminium-plastic paper compound package material
Waste, to environmental protection band immense pressure.
EVOH is ethylene-vinyl alcohol copolymer, has both the workability of polyethylene and the barrier properties for gases of polyvinyl alcohol,
Barrier property depends on ethylene contents in copolymerization component, and ethylene contents are higher, and barrier property is poorer, but processing performance is changed
It is kind.EVOH reproducible utilizations, while carbon dioxide and oxygen is only produced after burning, it is excellent environment-friendly package material.But due to
Contain great amount of hydroxy group in EVOH, easily absorb water under higher levels of humidity so that the barrier property of material drastically declines, in order to avoid by
To the influence of humidity, need the middle layer for placing it in coextrusion-lamination film, in practical applications it is usually used be five layers and with
Upper EVOH co-extrusions film.The EVOH resins that the current country uses all rely on imports, at the same five layers and the investment of the above coextrusion compared with
For costliness, therefore the cost of such film remains high always.
PVDC exists in the form of two kinds of lotion and resin, and the domestic technology of PVDC lotions is ripe at present, but resin
Import is relied primarily on, since PVDC lotions have stronger acidity, coating needs special equipment and the process is more complicated, and can not return
It receives and utilizes, it is most important that：Waste material will produce the substance that hydrogen chloride, bioxin etc. does harm to the mankind and environmental toxic in burning,
The serious development for constraining PVDC.
Polyvinyl alcohol (PVA) resin is that have water-soluble high polymer, by being made after polyvinyl acetate ester hydrolysis, dried strip
PVA under part has excellent oxygen resistance, oxygen permeability coefficient minimum in each resin.High-barrier PVA coated films have following
Process characteristic：(1) PVA aqueous coating fluids can in drying tunnel drying and forming-film, and it is compound with base material, improve production efficiency, save
Cost and technique；(2) coating fluid formula appropriate can save precoating and the drying process of silane coupling agent；It (3) can be in PVA coating fluids
Middle addition crosslinking agent reduces sensibility of the PVA coatings to humidity.
The country is only seen in a few patent references in relation to the research to modified PVA aqueous coating fluid at present.Zou Mingguo etc.
Disclosed in wherein state's patent application prospectus 85109218A, in PVA aqueous solutions select trimethylol melamine or
For dimethylol urea as crosslinking agent, ammonium chloride improves the water resistance of PVA coating fluids as catalyst, coating do thickness be 5~
10um.The disadvantages of this method is：Modified coating fluid viscosity is high and unstable, and crosslinking agent easily autohemagglutination forms gel, validity period
Only 2~3 hours；And coating layer thickness is big, drying efficiency is low；Additionally due to first of dissociating in crosslinking agent trimethylol melamine
Aldehyde is high, does not meet security guard's standard, at present the domestic crosslinking agent without such commercialization.Wang Bo etc. is in patent application
It is disclosed in 1687264A, with R (NH2)2R (R represents alkylidene or carboxyl) is condensing agent, selects triethylamine or Isosorbide-5-Nitrae-oxygen azepine
Hexamethylene makees catalyst, then is aided with other auxiliary agents and prepares modified PVA coating fluid, and coating has good under dry state and hygrometric state condition
Barrier property, but above-mentioned catalyst used in it is volatile, and has very toxic, serious to stimulate human eye and exhale
Road system is inhaled, health is endangered.
Invention content
For the variety of problems present in above-mentioned high-barrier packing film, purpose of the present invention is to provide a kind of modified works
Skill is simple, have a good economic benefits and environmental protection and saving can be used for industrial modified PVA aqueous coating fluid；The painting simultaneously
There is cloth liquid good water resistance, the film after coating not will produce anti-phenomena such as gluing, being swollen under high temperature and super-humid conditions, and
It is excellent with base material adhesion strength；It is unstable etc. existing that this coating fluid overcomes the easy skinning in conventional polyvinyl alcohol coating fluid surface, viscosity
As being suitble to long term storage.
The purpose of the present invention is achieved through the following technical solutions.
A kind of PVA paint being used to prepare high-barrier water boiling resistance film, by the raw material group of following parts by weight meter
At：3~12 parts of polyvinyl alcohol, 75~95 parts of water, 0.6~3.5 part of crosslinking agent, 0.1~2 part of antifoaming agent, levelling agent 0.1~1
Part, 0.05~1 part of dispersant, 0.01~0.5 part of catalyst, 5~15 parts of conditioning agent, 0.1~3.0 part of nano particle.
The degree of polymerization of the polyvinyl alcohol resin is 1700~1900, and alcoholysis degree is 88~99.9%.
The crosslinking agent is one or more of amino resins, silane coupling agent, boric acid, urea etc. arbitrary proportion
Mixture.
The antifoaming agent is organic silicon modified by polyether class antifoaming agent.
The levelling agent is alkyl-modified organosiloxane class levelling agent.
The dispersant is acrylic compounds or maleic acid family macromolecule dispersant.
The catalyst is the mixture of one or more kinds of arbitrary proportions such as hydrochloric acid, sulfuric acid, phosphoric acid.Concentration is less than
1mol/L, preferably shorter than 0.1mol/L.
The conditioning agent is or mixtures thereof ethyl alcohol, methanol.
The nano particle is in nano silicon dioxide, nano-calcium carbonate, nano-titanium dioxide, nano layered silicate etc.
One kind.
The preparation method of the above-mentioned PVA paint for being used to prepare high-barrier water boiling resistance film, its step are as follows：
(1) polyvinyl alcohol resin, water, antifoaming agent, conditioning agent are mixed according to the above ratio, is heated to 95~100 DEG C, perseverance
30~45min of temperature makes resin fully dissolve, and is cooled to room temperature, obtains poly-vinyl alcohol solution；
(2) nano particle, dispersant and water are mixed according to the above ratio, stirs 1~1.5h, keeps nano particle equal in water
Even dispersion, obtains nano dispersion fluid；
(3) the above-mentioned poly-vinyl alcohol solution and nano dispersion fluid prepared is added in crosslinking agent, catalyst, levelling agent successively
In, modified coating fluid is obtained after evenly mixing.
The method that the present invention uses solution mixing, nano particle is evenly spread in PVA resins, coating is not only increased
The barrier property of PVA film afterwards, while assigning coating excellent water resistance；In addition the addition of nano particle makes entire coating fluid
Even if system under weakly acidic condition, coating also can Quick cross-linking film forming, alleviate the selfing of coating fluid during storage significantly
Connection tendency, system viscosity keep stable for a long time.
Compared with prior art, the present invention haing the following advantages：(1) coating fluid exists with high transparency low viscosity state, is in
Faintly acid (PH=5~7), it is corrosion-free to equipment, it is environmentally friendly and simple for process；(2) coating layer thickness is thin, and rate of drying is fast, with base material
Surface adhesion strength is high, and barrier property is excellent；(3) viscosity stabilization, viscosity makes without significant change, suitable long term storage in 2 months
With；(4) excellent water resistance, 100 DEG C of boiling 60min, coated film barrier property keep good.
Specific implementation mode
The present invention is further explained in the light of specific embodiments.
Polyvinyl alcohol：Aladdin reagent, organic silicon defoamer：BYK-333, crosslinking agent：Aladdin reagent；Antifoaming agent：
The Jiangsu SXD-58 is along prosperous auxiliary agent Science and Technology Ltd.；Dispersing aid：The Shenzhen OT-75 Jitian's chemical industry, other inorganic nanoparticles
For some common nano particles in the market.
Embodiment one：
5kg polyvinyl alcohol is at the uniform velocity added in the cold water of 100kg, warming while stirring, mixing speed be set as 400 turns/
Minute, 95 DEG C are slowly ramped to, the organic silicon defoamer of 0.01kg is added after dissolving, the conditioning agent of 0.5kg persistently stirs 1
Hour, it is cooled to room temperature, then add the laminar nano hydrotalcite of 0.65kg, accelerates 2000 revs/min of stirring, at room temperature, add
Enter the crosslinking agent of 2.4kg, the catalyst of 0.8kg obtains uniform and stable solution.Coating obtained is coated with by upper machine, base
The BOPA light films that material is 15 μm.Coating weight is 0.8g/m2, it is 0.5mL/m to survey its OTR oxygen transmission rate2·24h。
Embodiment two：
8kg polyvinyl alcohol is at the uniform velocity added in the cold water of 100kg, warming while stirring, mixing speed be set as 400 turns/
Minute, 95 DEG C are slowly ramped to, the organic silicon defoamer of 0.01kg is added after dissolving, the conditioning agent of 0.5kg persistently stirs 1
Hour, it is cooled to room temperature, then add the laminar nano hydrotalcite of 0.8kg, accelerates 2000 revs/min of stirring, at room temperature, is added
The crosslinking agent of 3.2kg, the catalyst of 1.2kg obtain uniform and stable solution.Coating obtained is coated with by upper machine, base material
For 15 μm of BOPA light films.Coating weight is 0.8g/m2, it is 0.2mL/m to survey its OTR oxygen transmission rate2·24h。
Embodiment three：
5kg polyvinyl alcohol is at the uniform velocity added in the cold water of 100kg, warming while stirring, mixing speed be set as 400 turns/
Minute, 95 DEG C are slowly ramped to, the organic silicon defoamer of 0.01kg is added after dissolving, the conditioning agent of 0.5kg persistently stirs 1
Hour, it is cooled to room temperature, then add the laminar nano hydrotalcite of 0.65kg, accelerates 2000 revs/min of stirring, at room temperature, add
Enter the crosslinking agent of 2.4kg, the catalyst of 0.8kg obtains uniform and stable solution.Coating obtained is coated with by upper machine, base
The BOPA light films that material is 15 μm.Coating weight is 0.2g/m2, it is 2.3mL/m to survey its OTR oxygen transmission rate2·24h。
Example IV：
5kg polyvinyl alcohol is at the uniform velocity added in the cold water of 100kg, warming while stirring, mixing speed be set as 400 turns/
Minute, 95 DEG C are slowly ramped to, the organic silicon defoamer of 0.01kg is added after dissolving, the conditioning agent of 0.5kg persistently stirs 1
Hour, it is cooled to room temperature, then add the laminar nano hydrotalcite of 0.65kg, accelerates 2000 revs/min of stirring, at room temperature, add
Enter the crosslinking agent of 2.4kg, the catalyst of 0.8kg obtains uniform and stable solution.Coating obtained is coated with by upper machine, base
The BOPA light films that material is 12 μm.Coating weight is 0.2g/m2, it is 2.0mL/m to survey its OTR oxygen transmission rate2·24h。
Embodiment five：
8kg polyvinyl alcohol is at the uniform velocity added in the cold water of 100kg, warming while stirring, mixing speed be set as 400 turns/
Minute, 95 DEG C are slowly ramped to, the organic silicon defoamer of 0.01kg is added after dissolving, the conditioning agent of 0.5kg persistently stirs 1
Hour, it is cooled to room temperature, then add the laminar nano hydrotalcite of 0.8kg, accelerates 2000 revs/min of stirring, at room temperature, is added
The crosslinking agent of 3.2kg, the catalyst of 1.2kg obtain uniform and stable solution.Coating obtained is coated with by upper machine, base material
For 12 μm of BOPA light films.Coating weight is 0.8g/m2, it is 0.3mL/m to survey its OTR oxygen transmission rate2·24h。
Embodiment six：
10kg polyvinyl alcohol is at the uniform velocity added in the cold water of 100kg, warming while stirring, mixing speed be set as 400 turns/
Minute, 95 DEG C are slowly ramped to, the organic silicon defoamer of 0.01kg is added after dissolving, the conditioning agent of 0.5kg persistently stirs 1
Hour, it is cooled to room temperature, then add the laminar nano hydrotalcite of 0.8kg, accelerates 2000 revs/min of stirring, at room temperature, is added
The crosslinking agent of 3.2kg, the catalyst of 1.2kg obtain uniform and stable solution.Coating obtained is coated with by upper machine, base material
For 12 μm of BOPA light films.Coating weight is 0.8g/m2, it is 0.2mL/m to survey its OTR oxygen transmission rate2·24h。
Embodiment seven：
6kg polyvinyl alcohol is at the uniform velocity added in the cold water of 100kg, warming while stirring, mixing speed be set as 400 turns/
Minute, 95 DEG C are slowly ramped to, the organic silicon defoamer of 0.01kg is added after dissolving, the conditioning agent of 0.5kg persistently stirs 1
Hour, it is cooled to room temperature, then add the laminar nano hydrotalcite of 0.65kg, accelerates 2000 revs/min of stirring, at room temperature, add
Enter the crosslinking agent of 2.4kg, the catalyst of 0.8kg obtains uniform and stable solution.Coating obtained is coated with by upper machine, base
The BOPA light films that material is 15 μm.Coating weight is 0.2g/m2, it is 2.1mL/m to survey its OTR oxygen transmission rate2·24h。
Claims (10)
1. a kind of PVA paint being used to prepare high-barrier water boiling resistance film, it is characterised in that：By following parts by weight meter
Raw material composition：3~12 parts of polyvinyl alcohol, 75~95 parts of water, 0.6~3.5 part of crosslinking agent, 0.1~2 part of antifoaming agent, levelling agent
0.1~1 part, 0.05~1 part of dispersant, 0.01~0.5 part of catalyst, 5~15 parts of conditioning agent, 0.1~3.0 part of nano particle.
2. a kind of PVA paint being used to prepare high-barrier water boiling resistance film according to claim 1, feature
It is：The degree of polymerization of the polyvinyl alcohol resin is 1700~1900, and alcoholysis degree is 88~99.9%.
3. a kind of PVA paint being used to prepare high-barrier water boiling resistance film according to claim 1, feature
It is：The crosslinking agent is one or more of amino resins, silane coupling agent, boric acid, urea etc. arbitrary proportion
Mixture.
4. a kind of PVA paint being used to prepare high-barrier water boiling resistance film according to claim 1, feature
It is：The antifoaming agent is organic silicon modified by polyether class antifoaming agent.
5. a kind of PVA paint being used to prepare high-barrier water boiling resistance film according to claim 1, feature
It is：The levelling agent is alkyl-modified organosiloxane class levelling agent.
6. a kind of PVA paint being used to prepare high-barrier water boiling resistance film according to claim 1, feature
It is：The dispersant is acrylic compounds or maleic acid family macromolecule dispersant.
7. a kind of PVA paint being used to prepare high-barrier water boiling resistance film according to claim 1, feature
It is：The catalyst is the mixture of one or more of hydrochloric acid, sulfuric acid, phosphoric acid arbitrary proportion.
8. a kind of PVA paint being used to prepare high-barrier water boiling resistance film according to claim 1, feature
It is：The conditioning agent is or mixtures thereof ethyl alcohol, methanol.
9. a kind of PVA paint being used to prepare high-barrier water boiling resistance film according to claim 1, feature
It is：The nano particle is one in nano silicon dioxide, nano-calcium carbonate, nano-titanium dioxide, nano layered silicate
Kind.
10. the preparation method of one of the arbitrary PVA paints of claim 1-9, its step are as follows：
(1) polyvinyl alcohol resin, water, antifoaming agent, conditioning agent are mixed according to the above ratio, is heated to 95~100 DEG C, constant temperature 30~
45min makes resin fully dissolve, and is cooled to room temperature, and obtains poly-vinyl alcohol solution；
(2) nano particle, dispersant and water are mixed according to the above ratio, stirs 1~1.5h, nano particle is made uniformly to divide in water
It dissipates, obtains nano dispersion fluid；
(3) crosslinking agent, catalyst, levelling agent are added in the above-mentioned poly-vinyl alcohol solution and nano dispersion fluid prepared successively,
Modified coating fluid is obtained after evenly mixing.
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110641118A (en) * | 2019-10-17 | 2020-01-03 | 厦门长塑实业有限公司 | High-barrier scratch-resistant biaxially oriented polyamide film and preparation method thereof |
| CN110774713A (en) * | 2019-10-31 | 2020-02-11 | 厦门长塑实业有限公司 | Coating type high-barrier bidirectional-stretching polylactic acid film and preparation method thereof |
| CN111690300A (en) * | 2020-07-06 | 2020-09-22 | 浙江金石包装有限公司 | Barrier coating and high-barrier composite material using same |
| CN111907161A (en) * | 2020-07-13 | 2020-11-10 | 厦门长塑实业有限公司 | Transparent ultrahigh-barrier composite film and preparation method thereof |
| CN111995912A (en) * | 2020-08-21 | 2020-11-27 | 纳琳威纳米科技（上海）有限公司 | Moisture-proof high-oxygen-barrier aqueous coating liquid and preparation method thereof |
| CN113717588A (en) * | 2021-09-02 | 2021-11-30 | 海南必凯水性新材料有限公司 | PVA emulsion for stone paper, preparation method and application thereof |
| CN113737571A (en) * | 2021-08-12 | 2021-12-03 | 佛山南海力豪包装有限公司 | Preparation method of sustainable high-barrier paper base material with enhanced moisture and oxygen resistance |
| CN114015265A (en) * | 2021-10-29 | 2022-02-08 | 厦门赋源高科技有限公司 | Long-acting antibacterial coating material and preparation method thereof |
| CN114958104A (en) * | 2022-06-16 | 2022-08-30 | 隆基乐叶光伏科技有限公司 | Primer, preparation method thereof and BIPV product |
| CN115895357A (en) * | 2022-12-15 | 2023-04-04 | 中山大学 | Novel degradable high-barrier film coating liquid and preparation method and application thereof |
| WO2023155380A1 (en) * | 2022-02-18 | 2023-08-24 | 苏州赛伍应用技术股份有限公司 | Water vapor barrier coating solution and preparation method therefor, and water vapor barrier coating |
| CN116752375A (en) * | 2023-06-27 | 2023-09-15 | 东莞桔蕴新材料科技有限公司 | PVA emulsion special for paper and preparation method thereof |
| CN117384517A (en) * | 2023-12-07 | 2024-01-12 | 广东顺德德冠艺云科技有限公司 | Barrier aqueous coating liquid, barrier polyolefin film and preparation method thereof |
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| CN102061115A (en) * | 2010-12-13 | 2011-05-18 | 中国航天科工集团八五一一研究所 | Coating liquid suitable for preparing boiling-resistance high-obstruction film and preparation method of coating liquid |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110641118B (en) * | 2019-10-17 | 2021-07-27 | 厦门长塑实业有限公司 | High-barrier scratch-resistant biaxially oriented polyamide film and preparation method thereof |
| CN110641118A (en) * | 2019-10-17 | 2020-01-03 | 厦门长塑实业有限公司 | High-barrier scratch-resistant biaxially oriented polyamide film and preparation method thereof |
| CN110774713A (en) * | 2019-10-31 | 2020-02-11 | 厦门长塑实业有限公司 | Coating type high-barrier bidirectional-stretching polylactic acid film and preparation method thereof |
| CN111690300A (en) * | 2020-07-06 | 2020-09-22 | 浙江金石包装有限公司 | Barrier coating and high-barrier composite material using same |
| CN111907161A (en) * | 2020-07-13 | 2020-11-10 | 厦门长塑实业有限公司 | Transparent ultrahigh-barrier composite film and preparation method thereof |
| CN111995912A (en) * | 2020-08-21 | 2020-11-27 | 纳琳威纳米科技（上海）有限公司 | Moisture-proof high-oxygen-barrier aqueous coating liquid and preparation method thereof |
| CN113737571A (en) * | 2021-08-12 | 2021-12-03 | 佛山南海力豪包装有限公司 | Preparation method of sustainable high-barrier paper base material with enhanced moisture and oxygen resistance |
| CN113717588A (en) * | 2021-09-02 | 2021-11-30 | 海南必凯水性新材料有限公司 | PVA emulsion for stone paper, preparation method and application thereof |
| CN114015265A (en) * | 2021-10-29 | 2022-02-08 | 厦门赋源高科技有限公司 | Long-acting antibacterial coating material and preparation method thereof |
| WO2023155380A1 (en) * | 2022-02-18 | 2023-08-24 | 苏州赛伍应用技术股份有限公司 | Water vapor barrier coating solution and preparation method therefor, and water vapor barrier coating |
| CN114958104A (en) * | 2022-06-16 | 2022-08-30 | 隆基乐叶光伏科技有限公司 | Primer, preparation method thereof and BIPV product |
| CN115895357A (en) * | 2022-12-15 | 2023-04-04 | 中山大学 | Novel degradable high-barrier film coating liquid and preparation method and application thereof |
| CN116752375A (en) * | 2023-06-27 | 2023-09-15 | 东莞桔蕴新材料科技有限公司 | PVA emulsion special for paper and preparation method thereof |
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Application publication date: 20180817 |