CN102888158A - Preparation method of high-resistance polymer coating liquid - Google Patents
Preparation method of high-resistance polymer coating liquid Download PDFInfo
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Abstract
A preparation method of high-resistance polymer coating liquid comprises the following steps of: firstly, adding the water-soluble high polymer with high hydroxyl density into part of water with a temperature of 92-99 DEG C, stirring to obtain a solution of the water-soluble high polymer with high hydroxyl density and reducing the temperature to be 30-40 DEG C for later use; secondly, adding nano metal oxide, a viscosity modifier, a polymer dispersant and a coupling agent into part of water and stirring to obtain a homogeneous and transparent dispersion liquid; and thirdly, mixing the solution of the water-soluble high polymer with high hydroxyl density prepared in the first step with the homogeneous and transparent dispersion liquid prepared in the second step, then sequentially adding the balance of water, a drying regulator and a cross-linking agent, stirring at the speed of 50-500 rpm for 30-60 minutes and filtering by using a stainless steel filter with 200-800 meshes to obtain the high-resistance coating liquid. The multi-component environment-friendly coating liquid prepared in the invention has excellent oxygen-resistance performance under the condition that a relatively thin coating is formed and simultaneously has the advantages of simple preparation process and stable performance.
Description
Technical field
The present invention relates to the preparation method of the high-barrier polymkeric substance of high oxygen barrier after a kind of film forming.
Background technology
In the food storing transportation, causing the factor of food spoilage a lot, wherein mainly is that food contacts the food spoilage that causes with airborne oxygen.And for liquid-food, for storage time and the shelf-lives that improves food, usually adopting has the material of high obstructing performance to pack to oxygen, and this packing will have enough water resistances to run off to prevent that content from occuring to leak simultaneously.
For water tolerance, if select non-polar polymeric material such as polyolefine, comprise polyethylene, polypropylene etc., the progressive die of adequate thickness can provide good block-water performance; And for the very little oxygen of molecular diameter, must adopt stronger polarity, and high crystallization, high fine and close material could obtain low OTR oxygen transmission rate.
There is the polymer substance of good barrier mainly to comprise polymeric amide (PA), polyester (PET), polyvinylidene dichloride (PVDC), polyvinyl alcohol (PVA), ethylene-vinyl alcohol (EVOH), starch (Starch) and Mierocrystalline cellulose etc. to oxygen.Wherein PVA, EVOH, PVDC are high barrier material, and these three kinds of materials respectively have obvious shortcoming: EVOH that enough barriers and processibility are arranged, but cost is very high; The PVDC molecule is strong polarity, although oxygen barrier every wet, very approaching owing to decomposition temperature and fusing point, processing difficulties can not be shaped by extrusion method.And packaging function uses up rear very difficult recycling, and PVDC burns and can produce a large amount of toxic gas hydrogenchloride (HCl), and its environmental-protecting performance is very poor, and in today that environmental problem is becoming increasingly acute, just matter of time is eliminated; The hydroxy density of PVA is high, the polar molecule interchain bond is tight, degree of crystallinity is very high, nonpolar oxygen molecule had excellent barrier property, but high-crystallinity causes processing difficulties, processing temperature even be higher than its fusing point, although can by add starch, the glyceride type softening agent improve its processing characteristics, effect is unsatisfactory.And have enterprise to use the casting method film forming, but it is thicker to have a film, and product stock is to environment strict (crossing dry film becomes fragile, and crosses wet then adhesion), complex procedures, the shortcoming high to equipment requirements.
Summary of the invention
For this reason, technical problem to be solved by this invention is the difficult processing of existing macromolecular material as high-resistance polymer coating fluid, is difficult for reclaiming, the invention provides a kind of multicomponent environment-friendly high every the preparation method of polymer coating fluid for this reason, utilize the coating fluid of the method preparation under forming than the shallow layer situation, namely to have excellent oxygen barrier property, to have preparation technology simple for this coating fluid simultaneously, the advantage of stable performance.
For achieving the above object, the technical solution adopted in the present invention is:
(1) water-soluble high hydroxy density high molecular polymer is added in 92-100 ℃ the part water, stirs, obtain the solution (being called A solution) of water-soluble high hydroxy density high molecular polymer, and be cooled to 30-40 ℃ for subsequent use;
(2) nano-metal-oxide, viscosity modifier, macromolecule dispersing agent, coupling agent are added in the part water, stir and obtain transparent and homogeneous dispersion liquid (being called the B dispersion liquid);
After the B dispersion liquid of the A solution that (3) step (1) is prepared and step (2) preparation mixes, add successively again water, drying regulator and the linking agent of surplus, 50-500rpm stirs 30-60min, and 200-400 order Stainless Steel Filter filters and namely gets the high barrier coating fluid.
Preferably, the preparation method of described high-resistance polymer coating fluid is:
(1) water-soluble high hydroxy density high molecular polymer is added in 92-100 ℃ the part water, stirs, obtain the solution (being called A solution) of water-soluble high hydroxy density high molecular polymer, and be cooled to 30-40 ℃ for subsequent use;
(2) nano-metal-oxide, part viscosity modifier, macromolecule dispersing agent, coupling agent are added in the part water, filter with 100-400 order strainer after stirring 30-60min under the stirring velocity 4000-8000rpm condition, obtain transparent and homogeneous dispersion liquid (being called the B dispersion liquid);
After the B dispersion liquid of the A solution that (3) step (1) is prepared and step (2) preparation mixes, add successively again the water of surplus, viscosity modifier, drying regulator and the linking agent of surplus, 50-500rpm stirs 30-60min, and 200-400 order Stainless Steel Filter filters and namely gets the high barrier coating fluid.
Further preferably,, the preparation method of described high-resistance polymer coating fluid is:
(1) water-soluble high hydroxy density high molecular polymer is added in 92-100 ℃ the part water, stirs, obtain the solution (being called A solution) of water-soluble high hydroxy density high molecular polymer, and be cooled to 30-40 ℃ for subsequent use;
(2) nano-metal-oxide, part viscosity modifier, macromolecule dispersing agent, coupling agent, part siccative are added in the part water, filter with 100-400 order strainer after stirring 30-60min under the stirring velocity 4000-8000rpm condition, obtain transparent and homogeneous dispersion liquid (being called the B dispersion liquid);
After the B dispersion liquid of the A solution that (3) step (1) is prepared and step (2) preparation mixes, add successively again the water of surplus, viscosity modifier, surplus drying regulator and the linking agent of surplus, 50-500rpm stirs 30-60min, and 200-400 order Stainless Steel Filter filters and namely gets the high barrier coating fluid.
The high-resistance polymer coating fluid of preparation contains following component:
A kind of high-resistance polymer coating fluid comprises following component:
Water-soluble high hydroxy density high molecular polymer 6-18wt%;
Nano-metal-oxide 0-7wt%;
Silane coupling agent 0-1.3wt%;
Viscosity modifier 0.01-2.5wt%;
Macromolecule dispersing agent 0.1-6wt%;
Linking agent 0.45-1.2wt%;
Drying regulator 1-28wt%;
With water 40-92.44wt%.
Preferably, described high-resistance polymer coating fluid comprises following component:
Water-soluble high hydroxy density high molecular polymer 8-14wt%;
Nano-metal-oxide 2-5wt%;
Silane coupling agent 0.5-0.9wt%;
Viscosity modifier 0.8-1.6wt%;
Macromolecule dispersing agent 3-4.5wt%;
Linking agent 0.7-0.9wt%;
Drying regulator 8-17wt%;
With water 18-80wt%.
Described water-soluble high hydroxy density polymkeric substance is a kind of in polyvinyl alcohol (PVOH), starch and treated starch, Mierocrystalline cellulose and the derivative thereof or several mixture wherein.Be preferably polyvinyl alcohol, the molecular weight of described polyvinyl alcohol is 12000-75000, and alcoholysis degree is 85-99.5%wt.
Described nano-metal-oxide is nano silicon, nano aluminium oxide is a kind of or its mixture, and preferred surface is long-pending to be 175-230m
2The nano silicon of/g.
Described silane coupling agent contains amino or allyl group.
Described viscosity modifier is the low molecular weight carboxylic acid, is preferably a kind of in formic acid, acetic acid, the propionic acid or several mixture wherein.
Described macromolecule dispersing agent is the anionic polyelectrolyte macromolecule dispersing agent, is preferably polyacrylic acid or polymethyl acrylic acid, and molecular weight ranges is 5,000-1,220,000, and the molecular weight of described polymethyl acrylic acid is preferably 5,000-200, and 000.
Described linking agent is boric acid and boratory mixture, and preferably, described linking agent is the mixture of boric acid and sodium tetraborate, and the part by weight between described sodium tetraborate and the boric acid is 1: 1-1: 3.
Described drying regulator is a kind of in methyl alcohol, ethanol, Virahol, sec-butyl alcohol, the isopropylcarbinol or several mixture wherein.
Compared to existing technology, beneficial effect of the present invention is:
The high-resistance polymer coating fluid of the present invention preparation comprises water-soluble high hydroxy density high molecular polymer, nano-metal-oxide, silane coupling agent, viscosity modifier, macromolecule dispersing agent, linking agent, drying regulator and water, and the selectable material of each composition and shared ratio have passed through that performing creative labour obtains.In addition, the selected material of each component in the high-resistance polymer coating fluid of the present invention is ep-type material, and is preferably the mode that adopts substep to add the part component.Experimental results show that and adopt the high-resistance polymer coating fluid of method preparation of the present invention to be coated on biaxial stretching polyester (BOPET) surface, coated weight only is 1.2g/m
2, the percent of pass of oxygen is only up to 2.20cc/day.m
2So when adopting high-resistance polymer coating fluid of the present invention to apply, formed coating has excellent oxygen-barrier property under the less amount of being coated with, therefore be applicable to the preparation of high oxygen barrier material.
In addition, the preparation method of described high-resistance polymer coating fluid is dissolved in high molecular polymer in the water, compares with the processing mode that other macromolecular materials such as existing extrusion moulding are required, and its preparation method is simple, simple to equipment requirements, reduced tooling cost.
Embodiment
Embodiment 1
High-resistance polymer coating fluid comprises following component:
Polyvinyl alcohol PVOH 18wt%, its molecular weight are 13200, alcoholysis degree is 88wt%;
Nano silicon 1wt%, specific surface area is 200m
2/ g;
Silane coupling reagent KH-570 0.1%wt;
Acetic acid 0.32wt%;
Polyacrylic acid 0.32wt%, its molecular weight 5000;
Linking agent 1.2wt%, described linking agent are the mixture of boric acid and Sodium Tetraborate, and its weight part ratio is 1: 1;
Ethanol 5wt%;
Water 74.06wt%.
The preparation method of above-mentioned high-resistance polymer coating fluid is:
(1) be 13200 with 25 parts of molecular weight, alcoholysis degree is that the PVOH of 88%wt adds in 75 parts 92 ℃ the water, and 500rpm stirs insulated and stirred 40min, gets A solution, be cooled to 30 ℃ for subsequent use.
(2) be 200m with 25 parts of specific surface areas
2/ g silicon-dioxide, 2.5 parts of KH-570,3.5 parts of acetic acid, 8 part of 5000 molecular weight polyacrylic acid add in 61 parts of water, and stirring velocity 6000rpm filters with 200 order strainers after stirring 40min, obtains the translucent silica dispersions of homogeneous, is called the B dispersion liquid;
(3) get 72 parts of A solution, 4 parts of B dispersion liquid mix and blends, add successively 17.62 parts water, 0.18 part of viscosity modifier acetic acid, 5 parts of ethanol and 1.2 parts of linking agent (boric acid: Sodium Tetraborate weight ratio=1: 1), 100rpm stirs 35min, and 400 order Stainless Steel Filters filter and namely get the high barrier coating fluid.
With above-mentioned coating fluid according to 1.2g/m
2Dry pickup be coated on the 12umBOPET surface of surface tension 52 dyne, adopts 70 ℃ of warm air dryings, measure the OTR oxygen transmission rate of coating fluid formation coating, test result sees Table 1.
Embodiment 2
High-resistance polymer coating fluid comprises following component:
Polyvinyl alcohol PVOH 10.5wt%, its molecular weight 75000, alcoholysis degree 99%wt;
Nano silicon 3.6wt%, specific surface area is 200m2/g;
Silane coupling reagent KH-570 0.05%wt;
Acetic acid 1.325wt%;
Polymethyl acrylic acid 1.2wt%, its molecular weight 5000;
Linking agent 0.45wt%, described linking agent are the mixture of boric acid and Sodium Tetraborate, and its weight part ratio is 1: 1;
Virahol 8wt%;
Water 74.875wt%.
The preparation method of above-mentioned high-resistance polymer coating fluid is:
(1) be 75000 with 20 parts of molecular weight, alcoholysis degree is that the PVOH of 99%wt adds in 80 parts 92 ℃ the water, and 800rpm stirs insulated and stirred 40min, gets A solution, be cooled to 30 ℃ for subsequent use;
(2) be 200m with 24 parts of specific surface areas
2/ g silicon-dioxide, 0.2 part of KH-570,0.5 part of acetic acid, 8 part of 5000 molecular weight polyisoprene methacrylic acid add in 67.3 parts of water, stirring velocity 7000rpm filters with 200 order strainers after stirring 60min, obtain the translucent silica dispersions of homogeneous, be called the B dispersion liquid;
(3) get 52.5 parts of A solution, 15 parts of B dispersion liquid mix and blends, add successively 22.8 parts water, 1.25 parts of viscosity modifier acetic acid, 8 parts of Virahols and 0.45 part of linking agent (boric acid: Sodium Tetraborate weight ratio=1: 1), 150rpm stirs 40min, and 400 order Stainless Steel Filters filter and namely get the high barrier coating fluid.
With above-mentioned coating fluid according to 1.2g/m
2Dry pickup be coated on the 12umBOPET surface of surface tension 52 dyne, adopts 70 ℃ of warm air dryings, measure the OTR oxygen transmission rate of coating fluid formation coating, test result sees Table 1.
Embodiment 3
High-resistance polymer coating fluid comprises following component:
Polyvinyl alcohol PVOH 10wt%, its molecular weight 75000, alcoholysis degree 99%wt;
Nano aluminium oxide 7wt%, specific surface area is 200m
2/ g;
Acetic acid 1.18wt%;
Polymethyl acrylic acid 0.168wt%, its molecular weight 5000;
Linking agent 0.5wt%, described linking agent are the mixture of boric acid and Sodium Tetraborate, and its weight part ratio is 1: 3;
Virahol 11.72wt%;
Water 69.432wt%.
The preparation method of above-mentioned high-resistance polymer coating fluid is:
(1) be 75000 with 20 parts of molecular weight, alcoholysis degree is that the PVOH of 99%wt adds in 80 parts 95 ℃ the water, and 800rpm stirs insulated and stirred 40min, gets A solution, be cooled to 30 ℃ for subsequent use;
(2) be 200m with 25 parts of specific surface areas
2/ g aluminum oxide, 3.5 parts of acetic acid, 0.6 part of 10000 molecular weight polyisoprene methacrylic acid add in 46.9 parts of water, after stirring 40min, filter with 200 order strainers 24 parts of Virahol stirring velocity 5000rpm, obtain the translucent silica dispersions of homogeneous, be called the B dispersion liquid;
(3) get 50 parts of A solution, 28 parts of B dispersion liquid mix and blends, add successively 16.3 parts water, 0.2 part of viscosity modifier acetic acid, 5 parts of Virahols and 0.5 part of linking agent (boric acid: Sodium Tetraborate weight ratio=1: 3), 150rpm stirs 40min, and 400 order Stainless Steel Filters filter and namely get the high barrier coating fluid.
With above-mentioned coating fluid according to 1.2g/m
2Dry pickup be coated on the 12umBOPET surface of surface tension 52 dyne, adopts 70 ℃ of warm air dryings, measure the OTR oxygen transmission rate of coating fluid formation coating, test result sees Table 1.
Embodiment 4
High-resistance polymer coating fluid comprises following component:
Polyvinyl alcohol PVOH 6wt%, its molecular weight 44000, alcoholysis degree 88%wt;
Nano silicon 2wt%, specific surface area is 200m
2/ g;
Acetic acid 1.1wt%;
Polyacrylic acid 1.2wt%, its molecular weight 5000;
Linking agent 0.8wt%, described linking agent are the mixture of boric acid and Sodium Tetraborate, and its weight part ratio is 1: 1;
Virahol 6wt%;
Water 80.9wt%.
The preparation method of above-mentioned high-resistance polymer coating fluid is:
(1) be 44000 with 20 parts of molecular weight, alcoholysis degree is that the PVOH of 88%wt adds in 80 parts 95 ℃ the water, and 700rpm stirs insulated and stirred 40min, gets A solution, be cooled to 30 ℃ for subsequent use;
(2) be 200m with 20 parts of specific surface areas
2/ g silicon-dioxide, 0.5 part of acetic acid, 0.6 part of 5000 molecular weight polyacrylic acid add in 68.5 parts of water, and 5 parts of Virahol stirring velocity 6500rpm filter with 200 order strainers after stirring 40min, obtain the translucent silica dispersions of homogeneous, are called the B dispersion liquid;
(3) get 30 parts of A solution, 20 parts of B dispersion liquid mix and blends, add successively 43.2 parts water, 1 part of viscosity modifier acetic acid, 5 parts of Virahols and 0.8 part of linking agent (boric acid: Sodium Tetraborate weight ratio=1: 1), 150r pm stirs 40min, and 400 order Stainless Steel Filters filter and namely get the high barrier coating fluid.
With above-mentioned coating fluid according to 1.2g/m
2Dry pickup be coated on the 12umBOPET surface of surface tension 52 dyne, adopts 70 ℃ of warm air dryings, measure the OTR oxygen transmission rate of coating fluid formation coating, test result sees Table 1.
Table 1 oxygen permeability test data table (oxygen transmission rate adopts the GB/T19789-2005 standard to test)
| Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | |
| Coating is (g/m2) quantitatively | 1.2 | 1.2 | 1.2 | 1.2 |
| Oxygen permeating amount (cc/ (day.m2)) | 2.20 | 0.65 | 1.24 | 1.84 |
Can find out that by above data under the less amount of being coated with, the coating that forms after this coating fluid coating is dry has superior oxygen-barrier property, this coating fluid can be used for the preparation of high oxygen barrier material.And preparation technology is simple for this coating fluid, environmental protection, and the barrier layer cost is low.
Embodiment 5
High-resistance polymer coating fluid comprises following component:
Polyvinyl alcohol PVOH 12wt%, its molecular weight 12000, alcoholysis degree 99.5%wt;
Nano silicon 4wt%, specific surface area is 175m
2/ g;
Silane coupling reagent KH-570 1.3%wt;
Formic acid 0.01wt%;
Polyacrylic acid 6wt%, its molecular weight 20000;
Linking agent 0.6wt%, described linking agent are the mixture of boric acid and Sodium Tetraborate, and its weight part ratio is 1: 3;
Sec-butyl alcohol 28wt%;
Water 49.09wt%.
The preparation method of above-mentioned high-resistance polymer coating fluid is with embodiment 4, and wherein step (1) is that PVOH is added in 100 ℃ the water, and 1000rpm stirs insulated and stirred 30min, gets A solution, be cooled to 40 ℃ for subsequent use;
Step (2) is that silicon-dioxide, silane coupling agent, formic acid, polyacrylic acid are added to the water, and stirring velocity 4000rpm filters with 100 order strainers after stirring 60min, obtains the translucent silica dispersions of homogeneous, is called the B dispersion liquid;
Step (3) is got A solution, B dispersion liquid mix and blend, and stir speed (S.S.) 500rpm stirs 30min, and 200 order Stainless Steel Filters filter and namely get the high barrier coating fluid.
With above-mentioned coating fluid according to 1.2g/m
2Dry pickup be coated on the 12umBOPET surface of surface tension 52 dyne, adopts 70 ℃ of warm air dryings, measure the OTR oxygen transmission rate of coating fluid formation coating.
Embodiment 6
High-resistance polymer coating fluid comprises following component:
Polyvinyl alcohol PVOH 15wt%, its molecular weight 30000, alcoholysis degree 85%wt;
Nano silicon 5wt%, specific surface area is 230m
2/ g;
Silane coupling reagent KH-570 1%wt;
Propionic acid 2.5wt%;
Polyacrylic acid 0.1wt%, its molecular weight 1220000;
Linking agent 1.0wt%, described linking agent are the mixture of boric acid and Sodium Tetraborate, and its weight part ratio is 1: 3;
Isopropylcarbinol 1.0wt%;
Water 74.4wt%.
The preparation method of above-mentioned high-resistance polymer coating fluid is with embodiment 3, and wherein step (1) is that PVOH is added in 96 ℃ the water, and 300rpm stirs insulated and stirred 60min, gets A solution, be cooled to 35 ℃ for subsequent use;
Step (2) is that silicon-dioxide, propionic acid, polyacrylic acid are added to the water, and stirring velocity 8000rpm filters with 400 order strainers after stirring 30min, obtains the translucent silica dispersions of homogeneous, is called the B dispersion liquid;
Step (3) is got A solution, B dispersion liquid mix and blend, and stir speed (S.S.) 50rpm stirs 60min, and 300 order Stainless Steel Filters filter and namely get the high barrier coating fluid.
Embodiment 7
High-resistance polymer coating fluid comprises following component:
Polyvinyl alcohol PVOH 18wt%, its molecular weight 30000, alcoholysis degree 85%wt;
Nano silicon 7wt%, specific surface area is 230m2/g;
Silane coupling reagent KH-570 1.3%wt;
Propionic acid 2.5wt%;
Polyacrylic acid 4wt%, its molecular weight 1220000;
Linking agent 1.2wt%, described linking agent are the mixture of boric acid and Sodium Tetraborate, and its weight part ratio is 1: 2;
Isopropylcarbinol 26wt%;
Water 40wt%.
The preparation method of above-mentioned high-resistance polymer coating fluid is with embodiment 1.
Embodiment 8
High-resistance polymer coating fluid comprises following component:
Polyvinyl alcohol PVOH 6wt%, its molecular weight 30000, alcoholysis degree 85%wt;
Propionic acid 0.06wt%;
Linking agent 0.5wt%, described linking agent are the mixture of boric acid and Sodium Tetraborate, and its weight part ratio is 1: 2;
Isopropylcarbinol 1wt%;
Water 92.44wt%.
The preparation method of above-mentioned high-resistance polymer coating fluid is with embodiment 2.
A kind of in polyvinyl alcohol PVOH available starches among the embodiment and treated starch, Mierocrystalline cellulose and the derivative thereof or wherein several mixture replace, utilize the method for such Polymer materialspreparation high-resistance polymer coating fluid respectively with the method among the embodiment 1-8.
Above embodiment is described preferred implementation of the present invention; be not that scope of the present invention is limited; design under the prerequisite of spirit not breaking away from the present invention; various distortion and improvement that the common engineering technical personnel in this area make technical scheme of the present invention all should fall in the definite protection domain of claims of the present invention.
Claims (17)
1. the preparation method of a high-resistance polymer coating fluid is characterized in that, comprises the steps:
(1) water-soluble high hydroxy density high molecular polymer is added in 92-100 ℃ the part water, stirs, obtain the solution of water-soluble high hydroxy density high molecular polymer, and be cooled to 30-40 ℃ for subsequent use;
(2) nano-metal-oxide, viscosity modifier, macromolecule dispersing agent, coupling agent are added in the part water, stir and obtain the transparent and homogeneous dispersion liquid;
After the transparent and homogeneous dispersion liquid of the solution of the water-soluble high hydroxy density high molecular polymer that (3) step (1) is prepared and step (2) preparation mixes, add successively again water, drying regulator and the linking agent of surplus, 50-500rpm stirs 30-60min, and 200-400 order Stainless Steel Filter filters and namely gets the high barrier coating fluid; The high barrier coating fluid of preparation comprises following component:
Water-soluble high hydroxy density high molecular polymer 6-18wt%;
Nano-metal-oxide 0-7wt%;
Silane coupling agent 0-1.3wt%;
Viscosity modifier 0.01-2.5wt%;
Macromolecule dispersing agent 0.1-6wt%;
Linking agent 0.45-1.2wt%;
Drying regulator 1-28wt%;
With water 40-92.44wt%.
2. the preparation method of high-resistance polymer coating fluid according to claim 1, it is characterized in that, described step (2) is: nano-metal-oxide, part viscosity modifier, macromolecule dispersing agent, coupling agent are added in the part water, filter with 100-400 order strainer after stirring 30-60min under the stirring velocity 4000-8000rpm condition, obtain the transparent and homogeneous dispersion liquid;
Described step (3) is: after the transparent and homogeneous dispersion liquid of the solution of the water-soluble high hydroxy density high molecular polymer of step (1) preparation and step (2) preparation is mixed, add successively again the water of surplus, viscosity modifier, drying regulator and the linking agent of surplus, 50-500rpm stirs 30-60min, and 200-400 order Stainless Steel Filter filters and namely gets the high barrier coating fluid.
3. the preparation method of high-resistance polymer coating fluid according to claim 1, it is characterized in that, described step (2) is: nano-metal-oxide, part viscosity modifier, macromolecule dispersing agent, coupling agent, part siccative are added in the part water, filter with 100-400 order strainer after stirring 30-60min under the stirring velocity 4000-8000rpm condition, obtain the transparent and homogeneous dispersion liquid;
Described step (3) is: after the transparent and homogeneous dispersion liquid of the solution of the water-soluble high hydroxy density high molecular polymer of step (1) preparation and step (2) preparation is mixed, add successively again the water of surplus, viscosity modifier, surplus drying regulator and the linking agent of surplus, 50-500rpm stirs 30-60min, and 200-400 order Stainless Steel Filter filters and namely gets the high barrier coating fluid.
4. the preparation method of arbitrary described high-resistance polymer coating fluid is characterized in that according to claim 1-3, and the stirring velocity of described step (1) is 300-1000rpm, and churning time is 40-60min.
5. the preparation method of high-resistance polymer coating fluid according to claim 1 is characterized in that, the stirring velocity of described step (2) is 4000-8000rpm, and churning time is 30-60min.
6. the preparation method of high-resistance polymer coating fluid according to claim 5 is characterized in that, the solution after stirring in the described step (2) filters through 100-400 order strainer and obtains the transparent and homogeneous dispersion liquid.
7. the preparation method of high-resistance polymer coating fluid according to claim 6, it is characterized in that described water-soluble high hydroxy density polymkeric substance is a kind of in polyvinyl alcohol (PVOH), starch and treated starch, Mierocrystalline cellulose and the derivative thereof or several mixture wherein;
Wherein the molecular weight of polyvinyl alcohol is 12000-75000, and alcoholysis degree is 85-99.5%wt.
8. require the preparation method of 6 described high-resistance polymer coating fluids according to the claim profit, it is characterized in that, described nano-metal-oxide is nano silicon, nano aluminium oxide is a kind of or its mixture, the specific surface area 175-230m of described nano silicon
2/ g.
9. the preparation method of high-resistance polymer coating fluid according to claim 6 is characterized in that, described silane coupling agent contains amino or allyl group.
10. the preparation method of high-resistance polymer coating fluid according to claim 6 is characterized in that, described viscosity modifier is a kind of in formic acid, acetic acid, the propionic acid or several mixture wherein.
11. the preparation method of high-resistance polymer coating fluid according to claim 6 is characterized in that, described macromolecule dispersing agent is the anionic polyelectrolyte macromolecule dispersing agent.
12. the preparation method of high-resistance polymer coating fluid according to claim 11 is characterized in that, described anionic polyelectrolyte macromolecule dispersing agent is polyacrylic acid or polymethyl acrylic acid, and molecular weight ranges is 5,000-1,220,000.
13. the preparation method of high-resistance polymer coating fluid according to claim 12 is characterized in that, the molecular weight of described polymethyl acrylic acid is 5,000-200,000.
14. the preparation method of high-resistance polymer coating fluid according to claim 6 is characterized in that, described linking agent is the mixture of borate and boric acid.
15. the preparation method of high-resistance polymer coating fluid according to claim 14 is characterized in that,
Described linking agent is the mixture of boric acid and sodium tetraborate.
16. the preparation method of high-resistance polymer coating fluid according to claim 15 is characterized in that, the part by weight between described boric acid and the sodium tetraborate is 1: 1-3: 1.
17. high-resistance polymer coating fluid according to claim 6 is characterized in that, described drying regulator is a kind of in methyl alcohol, ethanol, Virahol, sec-butyl alcohol, the isopropylcarbinol or several mixture wherein.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106867035A (en) * | 2016-12-30 | 2017-06-20 | 苏州泰如新材料科技有限公司 | A kind of modified polyvinylalcohol packing film and preparation method thereof |
| CN107987617A (en) * | 2017-12-01 | 2018-05-04 | 高昕文 | A kind of preparation method of surface hydrophobicity material |
| CN109535867A (en) * | 2018-12-24 | 2019-03-29 | 福建师范大学福清分校 | A kind of high barrier PVA coating fluid and preparation method thereof |
| CN110662869A (en) * | 2017-03-30 | 2020-01-07 | 株式会社可乐丽 | Base paper for release paper, method for producing same, and release paper |
| CN115873458A (en) * | 2023-01-03 | 2023-03-31 | 中国乐凯集团有限公司 | Aqueous coating liquid, method for producing same, and gas barrier film |
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| CN103508074B (en) * | 2012-06-26 | 2016-03-16 | 层层包装事业股份有限公司 | Packaging for foodstuff material |
| CN103113788A (en) * | 2012-12-10 | 2013-05-22 | 江苏千色花化工有限公司 | Heat-resistant paint |
| 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 |
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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 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106867035A (en) * | 2016-12-30 | 2017-06-20 | 苏州泰如新材料科技有限公司 | A kind of modified polyvinylalcohol packing film and preparation method thereof |
| CN110662869A (en) * | 2017-03-30 | 2020-01-07 | 株式会社可乐丽 | Base paper for release paper, method for producing same, and release paper |
| CN107987617A (en) * | 2017-12-01 | 2018-05-04 | 高昕文 | A kind of preparation method of surface hydrophobicity material |
| CN109535867A (en) * | 2018-12-24 | 2019-03-29 | 福建师范大学福清分校 | A kind of high barrier PVA coating fluid and preparation method thereof |
| CN115873458A (en) * | 2023-01-03 | 2023-03-31 | 中国乐凯集团有限公司 | Aqueous coating liquid, method for producing same, and gas barrier film |
| CN115873458B (en) * | 2023-01-03 | 2024-04-19 | 中国乐凯集团有限公司 | Water-based coating liquid, preparation method thereof and gas barrier film |
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| CN102888158B (en) | 2015-02-18 |
| CN102382525A (en) | 2012-03-21 |
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