CN104610869A - Waterproof anti-fouling waterborne polyurethane coating and preparation method thereof - Google Patents
Waterproof anti-fouling waterborne polyurethane coating and preparation method thereof Download PDFInfo
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- CN104610869A CN104610869A CN201510060166.7A CN201510060166A CN104610869A CN 104610869 A CN104610869 A CN 104610869A CN 201510060166 A CN201510060166 A CN 201510060166A CN 104610869 A CN104610869 A CN 104610869A
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Abstract
The invention discloses a waterproof anti-fouling waterborne polyurethane coating and a preparation method thereof. The waterproof anti-fouling waterborne polyurethane is prepared from the following raw materials in parts by weight: 70-90 parts of polyethersiloxanediol, 80-100 parts of polycarbonate diols, 15-20 parts of 4-methylene diphenyl diisocyanate, 20-25 parts of isophorone diisocyanate, 8-10 parts of 4-butanediol, 6-8 parts of dihydroxy-propanoic acid, 8-10 parts of nano silicon dioxide, 9-13 parts of alkyl phosohate salt, 6-7 parts of chlorinated paraffin, 8-9 parts of glass fibers, 8-10 parts of pentaerythritol, 3-5 parts of trimethylolpropane, 4-5 parts of stannous octoate, 6-8 parts of triethanolamine, 5-7 parts of acrylic resins, 8-9 parts of organic organosiloxane, 2-3 parts of antioxidant TNP, 6-8 parts of cuprous oxide, 0.8-1.2 parts of dicumyl peroxide, 5-8 parts of diethylin propylamine, 15-20 parts of deionized water and 7-8 parts of auxiliaries. The coating has the advantages of good anti-fouling effect, high drying speed, high adhesion degree, high waterproof property, high chemical resistance, high rub resistance and the like.
Description
Technical field
The present invention relates to chemical preparations field, be specifically related to a kind of water proof anti-soil aqueous polyurethane coating and preparation method thereof.
Background technology
Along with the raising of living standards of the people and the reinforcement of environmental consciousness, plastic paint also as other coating, just towards functionalization and environmental protection future development.Aqueous coating for plastic present stage problems faced is convenient construction under cost acceptable prerequisite, film performance is made to be easy to relate to and optimization, improve the performance of product, to meet different requirements, rely on molecular designing and polymer molecule tailoring technique, modification is carried out to water-base resin and gives its better properties, make water-borne plastic coatings towards high performance, multifunction, low cost future development.
Aqueous polyurethane is a kind of urethane resin containing hydrophilic radical in the molecular chain of urethane, has very strong affinity, adopt specific technique can make it disperse in water and form stable system with glassware for drinking water.Aqueous polyurethane is mainly used in the aspects such as leather finish, textile printing and dyeing, paper-making industry, building coating, tackiness agent, steel moulder's paint, has very large market.
Summary of the invention
The object of this invention is to provide a kind of water proof anti-soil aqueous polyurethane coating and preparation method thereof.
For achieving the above object, the technical solution used in the present invention is:
A kind of water proof anti-soil aqueous polyurethane coating, formed by the preparation of raw material of following weight part: polyethersiloxanediol 70-90, PCDL 80-100, 2, 4-diphenylmethanediisocyanate 15-20, isoflurane chalcone diisocyanate 20-25, 1, 4-butyleneglycol 8-10, dihydroxypropionic acid 6-8, nano silicon 8-10, alkyl phosphate salt 9-13, clorafin 6-7, glass fibre 8-9, tetramethylolmethane 8-10, TriMethylolPropane(TMP) 3-5, stannous octoate 4-5, trolamine 6-8, acrylic resin 5-7, organo-siloxane 8-9, antioxidant TNP 2-3, Red copper oxide 6-8, dicumyl peroxide 0.8-1.2, diethyl amino propylamine 5-8, deionized water 15-20, auxiliary agent 7-8,
Described auxiliary agent is made up of the raw material of following weight part: nano-calcium carbonate 12-14, sodium polyacrylate 4-5, zinc oxide 6-8, quadrol 7-9, barium sulfate 5-7, propylene glycol phenylate 8-9, polyacrylic ester 8-10, citrate 5-8, titanium dioxide 7-10, brominated Polystyrene 8-10, antioxidant CA 3-5;
The preparation method of described auxiliary agent is: take the nano-calcium carbonate of above-mentioned weight part, zinc oxide, barium sulfate, titanium dioxide mix after grinding respectively, then other remaining component is added, 20-30 minute is stirred be 150-200 rev/min by rotating speed in high mixer under, leave standstill and be cooled to room temperature, obtain required auxiliary agent.
A preparation method for water proof anti-soil aqueous polyurethane coating, comprises the following steps:
(1) polyethersiloxanediol, the PCDL that take above-mentioned mass parts add in reactor, be evacuated to 0.03-0.09MPa, processed 60-80 minute, obtain dehydrated polyhydric alcohol solution at 80-95 DEG C;
(2) under the condition of stannous octoate, trolamine catalyzer by 2,4-diphenylmethanediisocyanate, isoflurane chalcone diisocyanate join in the dehydrated polyhydric alcohol solution of step (1), then 1 is added, 4-butyleneglycol, be warming up to 80-85 DEG C under nitrogen protection, insulation reaction 300-350 minute, obtains base polyurethane prepolymer for use as;
(3) deionized water, dihydroxypropionic acid, alkyl phosphate salt, tetramethylolmethane, TriMethylolPropane(TMP), dicumyl peroxide, diethyl amino propylamine is added in the base polyurethane prepolymer for use as obtained to step (2), through high-speed stirring emulsification 40-50 minute, obtained aqueous polyurethane emulsification;
(4) other remaining components such as nano silicon, clorafin, glass fibre, acrylic resin, organo-siloxane, antioxidant TNP, Red copper oxide, auxiliary agent are added in hydrotropisms's emulsifying polyurethane thing, under 50-60 DEG C and PH are the condition of 7, high shear agitation process emulsifying polyurethane thing 30-40 minute, can obtain water proof anti-soil aqueous polyurethane coating.
Beneficial effect of the present invention:
Coating of the present invention not only good antifouling effect, and rate of drying is fast, degree of adhesion is good, also has the advantages such as water tolerance, chemical resistant properties, rub resistance.
Embodiment
Below in conjunction with specific embodiment, technical scheme of the present invention is further described.
Embodiment 1:
A kind of water proof anti-soil aqueous polyurethane coating, formed by the preparation of raw material of following weight part (kg): polyethersiloxanediol 70, PCDL 80, 2, 4-diphenylmethanediisocyanate 15, isoflurane chalcone diisocyanate 20, 1, 4-butyleneglycol 8, dihydroxypropionic acid 6, nano silicon 8, alkyl phosphate salt 9, clorafin 6, glass fibre 8, tetramethylolmethane 8, TriMethylolPropane(TMP) 3, stannous octoate 4, trolamine 6, acrylic resin 5, organo-siloxane 8, antioxidant TNP 2, Red copper oxide 6, dicumyl peroxide 0.8, diethyl amino propylamine 5, deionized water 15, auxiliary agent 7,
Described auxiliary agent is made up of the raw material of following weight part (kg): nano-calcium carbonate 12, sodium polyacrylate 4, zinc oxide 6, quadrol 7, barium sulfate 5, propylene glycol phenylate 8, polyacrylic ester 8, citrate 5, titanium dioxide 7, brominated Polystyrene 8, antioxidant CA 3; Preparation method is: take the nano-calcium carbonate of above-mentioned weight part, zinc oxide, barium sulfate, titanium dioxide mix after grinding respectively, then other remaining component is added, stir 20-30 minute be 150-200 rev/min by rotating speed in high mixer under, leave standstill and be cooled to room temperature, obtain required auxiliary agent.
A preparation method for water proof anti-soil aqueous polyurethane coating, comprises the following steps:
(1) polyethersiloxanediol, the PCDL that take above-mentioned mass parts add in reactor, be evacuated to 0.03-0.09MPa, processed 60-80 minute, obtain dehydrated polyhydric alcohol solution at 80-95 DEG C;
(2) under the condition of stannous octoate, trolamine catalyzer by 2,4-diphenylmethanediisocyanate, isoflurane chalcone diisocyanate join in the dehydrated polyhydric alcohol solution of step (1), then 1 is added, 4-butyleneglycol, be warming up to 80-85 DEG C under nitrogen protection, insulation reaction 300-350 minute, obtains base polyurethane prepolymer for use as;
(3) deionized water, dihydroxypropionic acid, alkyl phosphate salt, tetramethylolmethane, TriMethylolPropane(TMP), dicumyl peroxide, diethyl amino propylamine is added in the base polyurethane prepolymer for use as obtained to step (2), through high-speed stirring emulsification 40-50 minute, obtained aqueous polyurethane emulsification;
(4) other remaining components such as nano silicon, clorafin, glass fibre, acrylic resin, organo-siloxane, antioxidant TNP, Red copper oxide, auxiliary agent are added in hydrotropisms's emulsifying polyurethane thing, under 50-60 DEG C and PH are the condition of 7, high shear agitation process emulsifying polyurethane thing 30-40 minute, can obtain water proof anti-soil aqueous polyurethane coating.
Embodiment 2:
A kind of water proof anti-soil aqueous polyurethane coating, formed by the preparation of raw material of following weight part (kg): polyethersiloxanediol 80, PCDL 90, 2, 4-diphenylmethanediisocyanate 17.5, isoflurane chalcone diisocyanate 22.5, 1, 4-butyleneglycol 9, dihydroxypropionic acid 7, nano silicon 9, alkyl phosphate salt 11, clorafin 6.5, glass fibre 8.5, tetramethylolmethane 9, TriMethylolPropane(TMP) 4, stannous octoate 4.5, trolamine 7, acrylic resin 6, organo-siloxane 8.5, antioxidant TNP 2.5, Red copper oxide 7, dicumyl peroxide 1, diethyl amino propylamine 6.5, deionized water 17.5, auxiliary agent 7.5,
Described auxiliary agent is made up of the raw material of following weight part (kg): nano-calcium carbonate 13, sodium polyacrylate 4.5, zinc oxide 7, quadrol 8, barium sulfate 6, propylene glycol phenylate 8.5, polyacrylic ester 9, citrate 6.5, titanium dioxide 8.5, brominated Polystyrene 9, antioxidant CA 4; Preparation method is: take the nano-calcium carbonate of above-mentioned weight part, zinc oxide, barium sulfate, titanium dioxide mix after grinding respectively, then other remaining component is added, stir 20-30 minute be 150-200 rev/min by rotating speed in high mixer under, leave standstill and be cooled to room temperature, obtain required auxiliary agent.
Preparation method is with embodiment 1.
Embodiment 3:
A kind of water proof anti-soil aqueous polyurethane coating, formed by the preparation of raw material of following weight part (kg): polyethersiloxanediol 90, PCDL 100, 2, 4-diphenylmethanediisocyanate 20, isoflurane chalcone diisocyanate 25, 1, 4-butyleneglycol 10, dihydroxypropionic acid 8, nano silicon 10, alkyl phosphate salt 13, clorafin 7, glass fibre 9, tetramethylolmethane 10, TriMethylolPropane(TMP) 5, stannous octoate 5, trolamine 8, acrylic resin 7, organo-siloxane 9, antioxidant TNP 3, Red copper oxide 8, dicumyl peroxide 1.2, diethyl amino propylamine 8, deionized water 20, auxiliary agent 8,
Described auxiliary agent is made up of the raw material of following weight part (kg): nano-calcium carbonate 14, sodium polyacrylate 5, zinc oxide 8, quadrol 9, barium sulfate 7, propylene glycol phenylate 9, polyacrylic ester 10, citrate 8, titanium dioxide 10, brominated Polystyrene 10, antioxidant CA 5; Preparation method is: take the nano-calcium carbonate of above-mentioned weight part, zinc oxide, barium sulfate, titanium dioxide mix after grinding respectively, then other remaining component is added, stir 20-30 minute be 150-200 rev/min by rotating speed in high mixer under, leave standstill and be cooled to room temperature, obtain required auxiliary agent.
Preparation method is with embodiment 1.
The Performance Detection of the water proof anti-soil aqueous polyurethane coating that above-described embodiment 1-3 obtains is as shown in the table:
| Embodiment 1 | Embodiment 2 | Embodiment 3 | |
| Inner time of drying, sky | 7 | 6 | 6 |
| Tensile strength, Mpa | 8.8 | 9.6 | 9.2 |
| Water tolerance (48h), outward appearance | Normally | Normally | Normally |
| Antifouling test, coating contact angle | 148° | 152° | 146° |
Claims (2)
1. a water proof anti-soil aqueous polyurethane coating, it is characterized in that, formed by the preparation of raw material of following weight part: polyethersiloxanediol 70-90, PCDL 80-100, 2, 4-diphenylmethanediisocyanate 15-20, isoflurane chalcone diisocyanate 20-25, 1, 4-butyleneglycol 8-10, dihydroxypropionic acid 6-8, nano silicon 8-10, alkyl phosphate salt 9-13, clorafin 6-7, glass fibre 8-9, tetramethylolmethane 8-10, TriMethylolPropane(TMP) 3-5, stannous octoate 4-5, trolamine 6-8, acrylic resin 5-7, organo-siloxane 8-9, antioxidant TNP 2-3, Red copper oxide 6-8, dicumyl peroxide 0.8-1.2, diethyl amino propylamine 5-8, deionized water 15-20, auxiliary agent 7-8,
Further, described auxiliary agent is made up of the raw material of following weight part: nano-calcium carbonate 12-14, sodium polyacrylate 4-5, zinc oxide 6-8, quadrol 7-9, barium sulfate 5-7, propylene glycol phenylate 8-9, polyacrylic ester 8-10, citrate 5-8, titanium dioxide 7-10, brominated Polystyrene 8-10, antioxidant CA 3-5;
Further, the preparation method of described auxiliary agent is: take the nano-calcium carbonate of above-mentioned weight part, zinc oxide, barium sulfate, titanium dioxide mix after grinding respectively, then other remaining component is added, 20-30 minute is stirred be 150-200 rev/min by rotating speed in high mixer under, leave standstill and be cooled to room temperature, obtain required auxiliary agent.
2. the preparation method of a kind of water proof anti-soil aqueous polyurethane coating according to claim 1, is characterized in that, comprise the following steps:
(1) polyethersiloxanediol, the PCDL that take above-mentioned mass parts add in reactor, be evacuated to 0.03-0.09MPa, processed 60-80 minute, obtain dehydrated polyhydric alcohol solution at 80-95 DEG C;
(2) under the condition of stannous octoate, trolamine catalyzer by 2,4-diphenylmethanediisocyanate, isoflurane chalcone diisocyanate join in the dehydrated polyhydric alcohol solution of step (1), then 1 is added, 4-butyleneglycol, be warming up to 80-85 DEG C under nitrogen protection, insulation reaction 300-350 minute, obtains base polyurethane prepolymer for use as;
(3) deionized water, dihydroxypropionic acid, alkyl phosphate salt, tetramethylolmethane, TriMethylolPropane(TMP), dicumyl peroxide, diethyl amino propylamine is added in the base polyurethane prepolymer for use as obtained to step (2), through high-speed stirring emulsification 40-50 minute, obtained aqueous polyurethane emulsification;
(4) other remaining components such as nano silicon, clorafin, glass fibre, acrylic resin, organo-siloxane, antioxidant TNP, Red copper oxide, auxiliary agent are added in hydrotropisms's emulsifying polyurethane thing, under 50-60 DEG C and PH are the condition of 7, high shear agitation process emulsifying polyurethane thing 30-40 minute, can obtain water proof anti-soil aqueous polyurethane coating.
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| CN104910778A (en) * | 2015-06-08 | 2015-09-16 | 苏州博利迈新材料科技有限公司 | Trimellitie anhydride antifouling paint and preparation method thereof |
| CN104927618A (en) * | 2015-06-09 | 2015-09-23 | 湖南科技大学 | Low-surface-energy self-polishing polyurethane marine antifouling paint and preparation method thereof |
| CN105131820A (en) * | 2015-09-21 | 2015-12-09 | 黄利锟 | Polyurethane composite resin paint resistant to friction and dirt as well as preparation method of paint |
| CN105482677A (en) * | 2015-12-29 | 2016-04-13 | 安徽安大华泰新材料有限公司 | Antifouling polyurethane coating |
| CN106042086A (en) * | 2016-07-21 | 2016-10-26 | 和县薛氏木制品制造有限公司 | Plywood putty and preparation method thereof |
| CN106592010A (en) * | 2016-12-16 | 2017-04-26 | 浙江华峰氨纶股份有限公司 | Preparation method and application of polyurethane elastic fiber |
| CN106752869A (en) * | 2016-12-10 | 2017-05-31 | 潘赵翔 | A kind of antibacterial weather-proof polyurethane coating and preparation method thereof |
| CN106854412A (en) * | 2016-12-10 | 2017-06-16 | 汤子宁 | A kind of wear-resisting antifouling double-component polyurethane coating and preparation method thereof |
| CN107189669A (en) * | 2017-07-01 | 2017-09-22 | 湖南科技大学 | A kind of low-surface-energy aqueous polyurethane/nano SiO2 marine anti-pollutions coating material and preparation method |
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