Summary of the invention
For this reason; Technical problem to be solved by this invention is the difficult processing of existing macromolecular material as the polymer-coated liquid of high-barrier, is difficult for reclaiming; The invention provides a kind of multicomponent environment-friendly high at a distance from polymer-coated liquid for this reason; This coating fluid promptly has excellent oxygen barrier property under forming than the shallow layer situation, to have preparation technology simple for this coating fluid simultaneously, the advantage of stable performance.
For realizing above-mentioned purpose, the technical scheme that the present invention adopted is:
The polymer-coated liquid of a kind of high-barrier 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, the polymer-coated liquid of said high-barrier 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 Z 150PH (PVOH), starch and treated starch, Mierocrystalline cellulose and the verivate thereof or several kinds mixture wherein.Be preferably Z 150PH, the molecular weight of said Z 150PH is 12000-75000, and alcoholysis degree is 85-99.5%wt.
Said nano-metal-oxide is a 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.
Said silane coupling agent contains amino or allyl group.
Said viscosity modifier is the low molecular weight carboxylic acid, is preferably a kind of in formic acid, acetate, the propionic acid or several kinds mixture wherein.
Described macromolecule dispersing agent is the anionic polyelectrolyte macromolecule dispersing agent, is preferably ROHM or polymethyl acrylic acid, and molecular weight ranges is 5,000-1, and 220,000, the molecular weight of said polymethyl acrylic acid is preferably 5,000-200,000.
Said linking agent is boric acid and boratory mixture, and preferably, said linking agent is the mixture of boric acid and sodium tetraborate, and the part by weight between said sodium tetraborate and the boric acid is 1: 1-1: 3.
Said drying regulator is a kind of in methyl alcohol, ethanol, Virahol, sec-butyl alcohol, the isopropylcarbinol or several kinds mixture wherein.
The preparation method of the polymer-coated liquid of above-mentioned high-barrier is:
(1) water-soluble high hydroxy density high molecular polymer is added in 92-100 ℃ the portion water, stirs, obtain the solution (being called A solution) of water-soluble high hydroxy density high molecular polymer, and be cooled to 30-40 ℃ subsequent use;
(2) nano-metal-oxide, viscosity modifier, macromolecule dispersing agent, coupling agent are added in the portion water, stir and obtain transparent and homogeneous dispersion liquid (being called the B dispersion liquid);
(3) the B dispersion liquid of the A solution of step (1) preparation and step (2) preparation is mixed after, add water, drying regulator and the linking agent of surplus more successively, 50-500rpm stirs 30-60min, the filtration of 200-400 order Stainless Steel Filter promptly gets the high barrier coating fluid.
Preferably, the preparation method of the polymer-coated liquid of described high-barrier is:
(1) water-soluble high hydroxy density high molecular polymer is added in 92-100 ℃ the portion water, stirs, obtain the solution (being called A solution) of water-soluble high hydroxy density high molecular polymer, and be cooled to 30-40 ℃ subsequent use;
(2) nano-metal-oxide, part viscosity modifier, macromolecule dispersing agent, coupling agent are added in the portion 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);
(3) after the B dispersion liquid mixing with the A solution of step (1) preparation and step (2) preparation; Add the water of surplus, viscosity modifier, drying regulator and the linking agent of surplus more successively; 50-500rpm stirs 30-60min, and 200-400 order Stainless Steel Filter filters and promptly gets the high barrier coating fluid.
Further preferably,, the preparation method of the polymer-coated liquid of described high-barrier is:
(1) water-soluble high hydroxy density high molecular polymer is added in 92-100 ℃ the portion water, stirs, obtain the solution (being called A solution) of water-soluble high hydroxy density high molecular polymer, and be cooled to 30-40 ℃ subsequent use;
(2) nano-metal-oxide, part viscosity modifier, macromolecule dispersing agent, coupling agent, part siccative are added in the portion 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);
(3) after the B dispersion liquid mixing with the A solution of step (1) preparation and step (2) preparation; Add the water of surplus, viscosity modifier, surplus drying regulator and the linking agent of surplus more successively; 50-500rpm stirs 30-60min, and 200-400 order Stainless Steel Filter filters and promptly gets the high barrier coating fluid.
Compare prior art, beneficial effect of the present invention is:
The polymer-coated liquid of high-barrier of the present invention is to be prepared from 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 selectable material of each composition and shared ratio have passed through that performing creative labour obtains.In addition, the material that each component in the polymer-coated liquid of high-barrier of the present invention is selected for use is ep-type material, and is preferably the mode that adopts substep to add the part component.The experiment proof adopts the polymer-coated liquid of high-barrier of method preparation of the present invention to be coated on biaxial stretching polyester (BOPET) surface, and coated weight is merely 1.2g/m
2, the highest 2.20cc/day.m that is merely of the percent of pass of oxygen
2So when adopting the polymer-coated liquid of high-barrier 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 the polymer-coated liquid of described high-barrier is dissolved in high molecular polymer in the water, compares with required processing modes of other macromolecular materials such as existing extrusion mouldings, and its preparation method is simple; Simple to equipment requirements, reduced tooling cost.
Embodiment
Embodiment 1
The polymer-coated liquid of high-barrier comprises following component:
Z 150PH PVOH 18wt%, its molecular weight are 13200, alcoholysis degree is 88wt%;
Nano silicon 1wt%, specific surface area is 200m
2/ g;
Silane coupling agent KH-570 0.1%wt;
Acetate 0.32wt%;
ROHM 0.32wt%, its molecular weight 5000;
Linking agent 1.2wt%, said 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 the polymer-coated liquid of above-mentioned high-barrier 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, A solution, be cooled to 30 ℃ 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 acetate, 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 liquids mixing stirrings; Add 17.62 parts water, 0.18 part of viscosity modifier acetate, 5 parts of ethanol and 1.2 parts of linking agent (boric acid: Sodium Tetraborate weight ratio=1: 1) successively; 100rpm stirs 35min, and 400 order Stainless Steel Filters filter and promptly 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 is seen table 1.
Embodiment 2
The polymer-coated liquid of high-barrier comprises following component:
Z 150PH PVOH 10.5wt%, its molecular weight 75000, alcoholysis degree 99%wt;
Nano silicon 3.6wt%, specific surface area is 200m2/g;
Silane coupling agent KH-570 0.05%wt;
Acetate 1.325wt%;
Polymethyl acrylic acid 1.2wt%, its molecular weight 5000;
Linking agent 0.45wt%, said 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 the polymer-coated liquid of above-mentioned high-barrier 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, A solution, be cooled to 30 ℃ 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 acetate, 8 part of 5000 molecular weight polyisoprene methylacrylic 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 liquids mixing stirrings; Add 22.8 parts water, 1.25 parts of viscosity modifier acetate, 8 parts of Virahols and 0.45 part of linking agent (boric acid: Sodium Tetraborate weight ratio=1: 1) successively; 150rpm stirs 40min, and 400 order Stainless Steel Filters filter and promptly 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 is seen table 1.
Embodiment 3
The polymer-coated liquid of high-barrier comprises following component:
Z 150PH PVOH 10wt%, its molecular weight 75000, alcoholysis degree 99%wt;
Nano aluminium oxide 7wt%, specific surface area is 200m
2/ g;
Acetate 1.18wt%;
Polymethyl acrylic acid 0.168wt%, its molecular weight 5000;
Linking agent 0.5wt%, said 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 the polymer-coated liquid of above-mentioned high-barrier 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, A solution, be cooled to 30 ℃ subsequent use;
(2) be 200m with 25 parts of specific surface areas
2/ g aluminum oxide, 3.5 parts of acetate, 0.6 part of 10000 molecular weight polyisoprene methylacrylic acid add in 46.9 parts of water; After stirring 40min, filter 24 parts of Virahol stirring velocity 5000rpm with 200 order strainers; 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 liquids mixing stirrings; Add 16.3 parts water, 0.2 part of viscosity modifier acetate, 5 parts of Virahols and 0.5 part of linking agent (boric acid: Sodium Tetraborate weight ratio=1: 3) successively; 150rpm stirs 40min, and 400 order Stainless Steel Filters filter and promptly 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 is seen table 1.
Embodiment 4
The polymer-coated liquid of high-barrier comprises following component:
Z 150PH PVOH 6wt%, its molecular weight 44000, alcoholysis degree 88%wt;
Nano silicon 2wt%, specific surface area is 200m
2/ g;
Acetate 1.1wt%;
ROHM 1.2wt%, its molecular weight 5000;
Linking agent 0.8wt%, said 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 the polymer-coated liquid of above-mentioned high-barrier 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, A solution, be cooled to 30 ℃ subsequent use;
(2) be 200m with 20 parts of specific surface areas
2/ g silicon-dioxide, 0.5 part of acetate, 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 liquids mixing stirrings; Add 43.2 parts water, 1 part of viscosity modifier acetate, 5 parts of Virahols and 0.8 part of linking agent (boric acid: Sodium Tetraborate weight ratio=1: 1) successively; 150rpm stirs 40min, and 400 order Stainless Steel Filters filter and promptly 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 is seen 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 |
The quantitative g/m2 of coating) |
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 through above data under the less amount of being coated with, the coating that this dry back of coating fluid coating forms 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
The polymer-coated liquid of high-barrier comprises following component:
Z 150PH PVOH 12wt%, its molecular weight 12000, alcoholysis degree 99.5%wt;
Nano silicon 4wt%, specific surface area is 175m
2/ g;
Silane coupling agent KH-570 1.3%wt;
Formic acid 0.01wt%;
ROHM 6wt%, its molecular weight 20000;
Linking agent 0.6wt%, said 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 the polymer-coated liquid of above-mentioned high-barrier is with embodiment 4, and wherein step (1) is that PVOH is added in 100 ℃ the water, and 1000rpm stirs insulated and stirred 30min, A solution, be cooled to 40 ℃ subsequent use;
Step (2) is that silicon-dioxide, silane coupling agent, formic acid, ROHM are added in the entry, 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, the B dispersion liquid mixes stirring, and stir speed (S.S.) 500rpm stirs 30min, and 200 order Stainless Steel Filters filter and promptly 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
The polymer-coated liquid of high-barrier comprises following component:
Z 150PH PVOH 15wt%, its molecular weight 30000, alcoholysis degree 85%wt;
Nano silicon 5wt%, specific surface area is 230m
2/ g;
Silane coupling agent KH-570 1%wt;
Propionic acid 2.5wt%;
ROHM 0.1wt%, its molecular weight 1220000;
Linking agent 1.0wt%, said 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 the polymer-coated liquid of above-mentioned high-barrier is with embodiment 3, and wherein step (1) is that PVOH is added in 96 ℃ the water, and 300rpm stirs insulated and stirred 60min, A solution, be cooled to 35 ℃ subsequent use;
Step (2) is that silicon-dioxide, propionic acid, ROHM are added in the entry, 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, the B dispersion liquid mixes stirring, and stir speed (S.S.) 50rpm stirs 60min, and 300 order Stainless Steel Filters filter and promptly get the high barrier coating fluid.
Embodiment 7
The polymer-coated liquid of high-barrier comprises following component:
Z 150PH PVOH 18wt%, its molecular weight 30000, alcoholysis degree 85%wt;
Nano silicon 7wt%, specific surface area is 230m2/g;
Silane coupling agent KH-570 1.3%wt;
Propionic acid 2.5wt%;
ROHM 4wt%, its molecular weight 1220000;
Linking agent 1.2wt%, said 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 the polymer-coated liquid of above-mentioned high-barrier is with embodiment 1.
Embodiment 8
The polymer-coated liquid of high-barrier comprises following component:
Z 150PH PVOH 6wt%, its molecular weight 30000, alcoholysis degree 85%wt;
Propionic acid 0.06wt%;
Linking agent 0.5wt%, said 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 the polymer-coated liquid of above-mentioned high-barrier is with embodiment 2.
A kind of in Z 150PH PVOH available starches among the embodiment and treated starch, Mierocrystalline cellulose and the verivate thereof or wherein several kinds mixture replace, utilize method that such macromolecular material prepares the polymer-coated liquid of high-barrier respectively with the method among the embodiment 1-8.
Above embodiment describes 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.