CN103254695B - A kind of take high density polyethylene(HDPE) as powder coating of major ingredient and preparation method thereof - Google Patents
A kind of take high density polyethylene(HDPE) as powder coating of major ingredient and preparation method thereof Download PDFInfo
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- CN103254695B CN103254695B CN201310119974.7A CN201310119974A CN103254695B CN 103254695 B CN103254695 B CN 103254695B CN 201310119974 A CN201310119974 A CN 201310119974A CN 103254695 B CN103254695 B CN 103254695B
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- density polyethylene
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Abstract
The invention discloses a kind of take high density polyethylene(HDPE) as powder coating of major ingredient and preparation method thereof, does is the weight part of its constitutive material: high density polyethylene(HDPE) 48-55, polybenzimidazole 27-33, quartz sand 18-22, montmorillonite powder 25-30, activity charcoal powder 4.5-5.5, cobalt sesquioxide 2.0-3.0, hydrotalcite powder 5.0-7.0, dispersing agent NNO? 6.0-8.0 with membrane-forming agent 5.0-6.5; Present invention employs high density polyethylene(HDPE) is main raw material, with the addition of hydrotalcite powder and membrane-forming agent, strengthens the Combination between each raw material, improve the surperficial levelling of powder coating simultaneously, have high gloss retention, improve the ornamental of powder coating, the product qualified rate prepared is high.
Description
Technical field
The present invention relates to powder coating, being specifically related to a kind of take high density polyethylene(HDPE) as powder coating of major ingredient and preparation method thereof.
Background technology
Along with the sustained, stable growth of China's economy and improving constantly of living standards of the people, the powder coating business of hardware also constantly increases, especially the industry such as instrument, traffic facilities, aluminium section bar, powder coating can to metal carrying for excellent corrosionproof protection and decorate properties, but because the antifouling property of the existing coating for above-mentioned field is undesirable, coating often adheres to all kinds of dust, dirt or even greasy dirt; Anti-stick subsides ability is also undesirable, and the coating that existing powder coating is formed is exposed to the sun out of doors for a long time, easily occur the phenomenons such as foaming, cracking, stripping under the effect of natural conditions such as to drench with rain, and therefore, the mechanical property of coating is also undesirable.
Summary of the invention
The object of the present invention is to provide a kind of take high density polyethylene(HDPE) as powder coating of major ingredient and preparation method thereof.
The present invention adopts following technical scheme to achieve these goals:
Take high density polyethylene(HDPE) as the powder coating of major ingredient, the weight part of its constitutive material is: high density polyethylene(HDPE) 48-55, polybenzimidazole 27-33, quartz sand 18-22, montmorillonite powder 25-30, activity charcoal powder 4.5-5.5, cobalt sesquioxide 2.0-3.0, hydrotalcite powder 5.0-7.0, dispersing agent NNO 6.0-8.0 and membrane-forming agent 5.0-6.5.
Take high density polyethylene(HDPE) as the powder coating of major ingredient, the weight part of its constitutive material is: high density polyethylene(HDPE) 49, polybenzimidazole 28, quartz sand 19, montmorillonite powder 26, activity charcoal powder 5.0, cobalt sesquioxide 2.5, hydrotalcite powder 6.0, dispersing agent NNO 7.0 and membrane-forming agent 5.8.
Take high density polyethylene(HDPE) as the preparation method of the powder coating of major ingredient, comprise the following steps:
(1) the coated hydrotalcite powder of carbon:
A: hydrotalcite powder is crushed to 120-130 order, then joins in deionized water by the weight part of constitutive material, and hydrotalcite powder and deionized water weight ratio are 1:2.3-2.8, Homogeneous phase mixing;
B: add the glucose accounting for hydrotalcite powder quality 10-15% in gained mixed solution, stir, Homogeneous phase mixing, and then add the molybdenum carbide accounting for glucose quality 1.0-1.6%, stir mixing; Mist projection granulating, obtains the hydrotalcite powder powder that organic carbon is coated, spray-dired inlet temperature 190-220 DEG C, temperature out 66-78 DEG C;
C: gained hydrotalcite powder powder loads in crucible, vacuumizes, passes into inert atmosphere, be heated to 270-330 DEG C of sintering 3.0-3.5h under keeping inert atmosphere conditions, then cooling obtains the coated hydrotalcite powder of carbon;
(2) preparation of membrane-forming agent:
A: first 9-11 part chloroprene rubber CR322,1.5-3.0 part dimethylbenzene, 2.0-3.0 part ethylene glycol diglycidylether, the mixing of 8-12 part E-12 epoxy resin are added in reactor, react 2-3 hour at 90-110 DEG C of temperature;
B: add 15-17 part MALEIC ANHYDRIDE, 1.8-2.5 part 2 in the reactor of step (1), 6 ditertbutylparacresols, 0.6-1.2 part vinyltrimethoxy silane, 1.0-1.8 part linking agent TAIC, be uniformly mixed, under 75-95 DEG C of temperature condition, react 3-5 hour, to obtain final product;
(3) take each raw material except hydrotalcite powder and membrane-forming agent by the weight part of constitutive material, the raw material after then processing with step (1) and (2) carries out preparing burden and puts into mixing machine mixing, the compound mixed is put into twin screw extruder and extrudes; After sheet material cooling after extruding, put into crusher for crushing, grind to form 220-280 object powder, packaging warehouse-in, powder curing condition is: solidification value 180-200 DEG C, insulation 20-30 minute.
Advantage of the present invention:
Present invention employs high density polyethylene(HDPE) is main raw material, with the addition of hydrotalcite powder and membrane-forming agent, strengthens the Combination between each raw material, improve the surperficial levelling of powder coating simultaneously, have high gloss retention, improve the ornamental of powder coating, the product qualified rate prepared is high.
Embodiment
Embodiment 1: the powder coating taking high density polyethylene(HDPE) as major ingredient, the weight part (kg) of its constitutive material is: high density polyethylene(HDPE) 49, polybenzimidazole 28, quartz sand 19, montmorillonite powder 26, activity charcoal powder 5.0, cobalt sesquioxide 2.5, hydrotalcite powder 6.0, dispersing agent NNO 7.0 and membrane-forming agent 5.8.
Take high density polyethylene(HDPE) as the preparation method of the powder coating of major ingredient, comprise the following steps:
(1) the coated hydrotalcite powder of carbon:
A: hydrotalcite powder is crushed to 120-130 order, then joins in deionized water by the weight part of constitutive material, and hydrotalcite powder and deionized water weight ratio are 1:2.5, Homogeneous phase mixing;
B: add the glucose accounting for hydrotalcite powder quality 12% in gained mixed solution, stir, Homogeneous phase mixing, and then add the molybdenum carbide accounting for glucose quality 1.3%, stir mixing; Mist projection granulating, obtains the hydrotalcite powder powder that organic carbon is coated, spray-dired inlet temperature 200 DEG C, temperature out 75 DEG C;
C: gained hydrotalcite powder powder loads in crucible, vacuumizes, passes into inert atmosphere, be heated to 300 DEG C of sintering 3.3h under keeping inert atmosphere conditions, then cooling obtains the coated hydrotalcite powder of carbon;
(2) preparation of membrane-forming agent:
A: first 10 parts of chloroprene rubber CR322,2.3 parts of dimethylbenzene, 2.5 parts of ethylene glycol diglycidylethers, 10 parts of E-12 epoxy resin mixing are added in reactor, react 2.5 hours at 100 DEG C of temperature;
B: add in the reactor of step (1) 16 parts of MALEIC ANHYDRIDE, 2.2 part 2,6 ditertbutylparacresols, 0.9 part of vinyltrimethoxy silane, 1.4 parts of linking agent TAIC, be uniformly mixed, under 85 DEG C of temperature condition react 4 hours, to obtain final product;
(3) take each raw material except hydrotalcite powder and membrane-forming agent by the weight part of constitutive material, the raw material after then processing with step (1) and (2) carries out preparing burden and puts into mixing machine mixing, the compound mixed is put into twin screw extruder and extrudes; After sheet material cooling after extruding, put into crusher for crushing, grind to form 250 object powder, packaging warehouse-in, powder curing condition is: solidification value 190 DEG C, is incubated 25 minutes.
Electrostatic spraying constructional method is adopted to act in the steel tube surface of spray treatment this powder coating, through the abundant solidification of 210 DEG C, naturally cool to room temperature, after placing 24h, measure coating performance, its coating shock strength >=102cm, salt-fog resistant time >=2890h, artificial accelerated aging time >=3050h, resistance toheat >=575, exposure to weather(ing) 16 months is non-foaming, non-corrosive, do not ftracture, do not peel off.
Claims (2)
1. be a powder coating for major ingredient with high density polyethylene(HDPE), it is characterized in that the weight part of its constitutive material is: high density polyethylene(HDPE) 48-55, polybenzimidazole 27-33, quartz sand 18-22, montmorillonite powder 25-30, activity charcoal powder 4.5-5.5, cobalt sesquioxide 2.0-3.0, hydrotalcite powder 5.0-7.0, dispersing agent NNO 6.0-8.0 and membrane-forming agent 5.0-6.5;
The preparation method of described with high density polyethylene(HDPE) the is powder coating of major ingredient, comprise the following steps: the coated hydrotalcite powder of (1) carbon: a: hydrotalcite powder is crushed to 120-130 order, then join in deionized water by the weight part of constitutive material, hydrotalcite powder and deionized water weight ratio are 1:2.3-2.8, Homogeneous phase mixing; B: add the glucose accounting for hydrotalcite powder quality 10-15% in gained mixed solution, stir, Homogeneous phase mixing, and then add the molybdenum carbide accounting for glucose quality 1.0-1.6%, stir mixing; Mist projection granulating, obtains the hydrotalcite powder powder that organic carbon is coated, spray-dired inlet temperature 190-220 DEG C, temperature out 66-78 DEG C; C: gained hydrotalcite powder powder loads in crucible, vacuumizes, passes into inert atmosphere, be heated to 270-330 DEG C of sintering 3.0-3.5h under keeping inert atmosphere conditions, then cooling obtains the coated hydrotalcite powder of carbon; (2) preparation of membrane-forming agent: a: first 9-11 part chloroprene rubber CR322,1.5-3.0 part dimethylbenzene, 2.0-3.0 part ethylene glycol diglycidylether, the mixing of 8-12 part E-12 epoxy resin are added in reactor, react 2-3 hour at 90-110 DEG C of temperature; B: add 15-17 part MALEIC ANHYDRIDE, 1.8-2.5 part 2 in the reactor of step (a), 6-ditertbutylparacresol, 0.6-1.2 part vinyltrimethoxy silane, 1.0-1.8 part linking agent TAIC, be uniformly mixed, under 75-95 DEG C of temperature condition, react 3-5 hour, to obtain final product; (3) each raw material except hydrotalcite powder and membrane-forming agent is taken by the weight part of constitutive material, then the raw material after processing with step (1) and (2) carries out preparing burden and puts into mixing machine mixing, the compound mixed is put into twin screw extruder extrude, after sheet material cooling after extruding, put into crusher for crushing, grind to form 220-280 object powder, packaging warehouse-in, powder curing condition is: solidification value 180-200 DEG C, insulation 20-30 minute.
2. according to claim 1 take high density polyethylene(HDPE) as the powder coating of major ingredient, it is characterized in that the weight part of its constitutive material is: high density polyethylene(HDPE) 49, polybenzimidazole 28, quartz sand 19, montmorillonite powder 26, activity charcoal powder 5.0, cobalt sesquioxide 2.5, hydrotalcite powder 6.0, dispersing agent NNO 7.0 and membrane-forming agent 5.8.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310119974.7A CN103254695B (en) | 2013-04-09 | 2013-04-09 | A kind of take high density polyethylene(HDPE) as powder coating of major ingredient and preparation method thereof |
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| CN201310119974.7A CN103254695B (en) | 2013-04-09 | 2013-04-09 | A kind of take high density polyethylene(HDPE) as powder coating of major ingredient and preparation method thereof |
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| CN103254695B true CN103254695B (en) | 2015-12-23 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103483931B (en) * | 2013-09-03 | 2016-05-25 | 蚌埠市鸿安精密机械有限公司 | A kind of powdery paints |
| CN103773126A (en) * | 2014-01-15 | 2014-05-07 | 芜湖市宝艺游乐科技设备有限公司 | Radiating paint with good peeling resistance |
| CN103773127A (en) * | 2014-01-15 | 2014-05-07 | 芜湖市宝艺游乐科技设备有限公司 | Lusterless radiating coating |
| CN103937336A (en) * | 2014-03-25 | 2014-07-23 | 安徽柏拉图涂层织物有限公司 | High levelling property paint |
| CN106477977B (en) * | 2016-10-10 | 2018-08-24 | 杭州金庭悦环保科技有限公司 | It is a kind of to have effects that permanent formaldehyde reduced radiation shielding coating and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4007298A (en) * | 1974-04-26 | 1977-02-08 | United States Pipe And Foundry Company | Polyethylene coating for ferrous metals |
| CN1082574A (en) * | 1992-08-07 | 1994-02-23 | 中国兵器工业第五三研究所 | Modified poly propylene powdered coating and preparation method |
| CN101240134A (en) * | 2008-03-06 | 2008-08-13 | 大庆石油管理局 | Epoxy modifying polyethylene bi-component powdery paints |
| CN102676018A (en) * | 2011-03-08 | 2012-09-19 | 中国石油化工股份有限公司 | Composition for preparing monolayer antiseptic polyethylene powder coating and method for preparing composition |
-
2013
- 2013-04-09 CN CN201310119974.7A patent/CN103254695B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4007298A (en) * | 1974-04-26 | 1977-02-08 | United States Pipe And Foundry Company | Polyethylene coating for ferrous metals |
| CN1082574A (en) * | 1992-08-07 | 1994-02-23 | 中国兵器工业第五三研究所 | Modified poly propylene powdered coating and preparation method |
| CN101240134A (en) * | 2008-03-06 | 2008-08-13 | 大庆石油管理局 | Epoxy modifying polyethylene bi-component powdery paints |
| CN102676018A (en) * | 2011-03-08 | 2012-09-19 | 中国石油化工股份有限公司 | Composition for preparing monolayer antiseptic polyethylene powder coating and method for preparing composition |
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Inventor after: Qin Feng Inventor before: Liu Qingfang |
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Effective date of registration: 20170703 Address after: Huang Town in Guangdong province Dongguan City Tianxin village 523000 Patentee after: Dongguan Yong glaze coating Co., Ltd. Address before: Fan Yang Zhen 241200 Anhui city of Wuhu province Fanchang County Yingchun Road, Xiyuan area 17 Patentee before: Liu Qingfang |
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