CN102634269A - Wood grain powder coating for aluminum profile and preparation method of wood grain powder coating - Google Patents
Wood grain powder coating for aluminum profile and preparation method of wood grain powder coating Download PDFInfo
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- CN102634269A CN102634269A CN2012101294357A CN201210129435A CN102634269A CN 102634269 A CN102634269 A CN 102634269A CN 2012101294357 A CN2012101294357 A CN 2012101294357A CN 201210129435 A CN201210129435 A CN 201210129435A CN 102634269 A CN102634269 A CN 102634269A
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Abstract
The invention discloses wood grain powder coating for aluminum profile. The wood grain powder coating is prepared from the following raw materials in percentage by weight: 45-50% of saturated terminal carboxyl polyester resin, 3-4% of beta-hydroxyalkylamide, 0.6-0.7% of titanium dioxide, 39-42% of precipitated barium sulfate, 0.8-1.2% of brightening agent, 0.8-1.2% of flatting agent, 0.3-0.4% of transfer agent, 0.4-0.5% of polyethylene wax, 1.0-1.2% of everbright fast yellow, 2.0-2.5% of iron oxide red, 1.0-1.3% of everbright fast red and 0.5-0.7% of pigment carbon black. The invention also discloses a preparation method of the powder coating, which comprises five steps of: pre-mixing, melt extrusion, cooling, breaking and micro-fine crushing. When in use, the powder disclosed by the invention has obvious characteristics of low curing temperature, environment friendliness, no toxicity and the like.
Description
Technical field
The present invention relates to a kind of powder coating, particularly a kind of powder coating that is used for aluminium section bar and preparation method thereof.
Background technology
Traditional finishing material majority is woodwork, plastics and aluminium wood composite material products, is expending natural timber and non-renewable petroleum resources in a large number.Along with the continuous progress and the innovation of science and technology, a kind of novel finishing material has appearred on the market in recent years---and the surface is processed to form the aluminium section bar with wood grain effect through powder coating.This material product appearance approaches woodwork; Create an aesthetic feeling; Alternative woodwork, plastics and aluminium wood composite material products; Also have advantages such as sturdy and durable, not yielding, insulation, sound insulation noise control, antidetonation, overcome poor, the yielding and easy shortcoming such as aging of traditional decoration material fire resistance.Be widely used in aspects such as building doors and windows, banister, furniture and office appliance, this material product Application Areas constantly enlarges at present, and thus, the production of wood grain powder coating and preparation also correspondingly are developed and grow in strength.
The wood grain powder coating is sprayed on aluminium shape surface and film-forming, processes through hot transfer technique after sticking woodgrained paper, makes aluminium section bar obtain the film coated surface of similar wood grain effect.In the powder coating solidification process; Curing apparatus need keep the constant of solidification value for a long time, and generally more than 200 ℃, the energy consumption of curing apparatus is big for existing powder coating solidification temperature; Increased surperficial production cost, be unfavorable for the use of wood grain powder coating with wood grain effect aluminium section bar.
In addition, the traditional solidifying agent TGIC that uses in the existing powder coating can discharge toxic substance in solidification process, cause direct labor's actual bodily harm, particularly the injury of skin aspect.Therefore, the formula combination and the production technique of existing powder coating exist great room for improvement.
Summary of the invention
The objective of the invention is to overcome the deficiency of prior art, low, the environment-protecting asepsis of solidification value when a kind of the use is provided, the aluminium section bar that production cost is low are used the wood grain powder coating.
In order to achieve the above object, the present invention adopts following technical scheme: a kind of aluminium section bar is used the wood grain powder coating, it is characterized in that, it is by the raw material preparing of following weight per-cent, and concrete prescription is:
More particularly, described brightening agent is an acrylic acid esters co-polymer.
Described flow agent is a polyacrylic ester.
Described transfer printing agent is an acylamide polymer.
The weight ratio of said saturated terminal carboxyl polyester resin and said beta-hydroxy alkylamide is: 93: 7.
Above-mentioned aluminium section bar is characterized in that with the preparation method of wood grain powder coating, may further comprise the steps:
The first step drops into pre-mixing in the compounding jar together with the starting material of following prescription, and the pre-mixing time is generally 3-4 minute and can mixes:
Second goes on foot, and the starting material after the pre-mixing is heated to fusion and extrudes be pressed into sheet stock;
In the 3rd step, sheet stock is carried out fragmentation after being cooled to room temperature under the normal pressure, the fine more afterwards powder coating that is ground into.
More particularly; Being heated to fusion and extruding in said second step is meant with the starting material of twin screw extruder after to pre-mixing and carries out the melting mixing homodisperse and extrude; Wherein, forcing machine I district temperature is 115～125 ℃, and the temperature in forcing machine II district is 105～115 ℃.
Fine pulverizing in said the 3rd step is meant that being crushed to powder diameter is 20～80 microns.
Fine pulverizing in said the 3rd step is meant with the ACM mill carries out stage reduction.
After said the 3rd step, can also comprise for the 4th step: the used for powder coating standard sieve is sieved.
The present invention possesses following outstanding advantage and effect with respect to prior art:
1, adopt new polyester resin and solidifying agent in the present invention prescription with energy-conserving and environment-protective unusual effect, the powder coating that the present invention processes during use can be under 160 ℃ temperature condition film-forming, reduce about 40 ℃ of solidification values than original powder coating; In solidification process, equipment energy consumption significantly reduces, and energy-saving effect is remarkable;
Saturated terminal carboxyl polyester resin and solidifying agent beta-hydroxy alkylamide in the present invention's prescription react when solidifying, and its mechanism is:
Terminal carboxyl polyester resin; Its acid number is 30-50mgKOH/g; The solidifying agent beta-hydroxy alkylamide is the amide compound with 4 active hydroxyls, and conventional solidifying agent TGIC is high for specific activity, so the ability solidification value is lower than conventional powder coating; To be polyester and solidifying agent at 160 ℃, 10-15 a polycondensation minute takes place forms insoluble molten net(high)polymer and films, and produces low molecular compound water simultaneously;
2, solidifying agent of the present invention adopts beta-hydroxy alkylamide, because beta-hydroxy alkylamide can not discharge toxic substance as conventional solidifying agent TGIC, so can not exert an influence to HUMAN HEALTH and environment;
3, add the polyethylene wax powder in the present invention's prescription, what the powder coating that the present invention processes obtained behind overcuring films, and surface hardness improves, and has smooth feel, makes the not sticking paper after hot transfer printing of filming, and the paper-tear picture effect is improved significantly.
Description of drawings
Fig. 1 is the process flow sheet of preparation powder coating of the present invention.
Embodiment
Below in conjunction with embodiment the present invention is described in further detail, but embodiment of the present invention is not limited thereto.
The powder coating preparation process of following examples is as shown in Figure 1.
Embodiment one
Prepare aluminium section bar by following step and use the wood grain powder coating:
The first step is even with the starting material pre-mixing of following prescription:
Wherein, The acrylic acid esters co-polymer that brightening agent adopts Fenghua Nanhai Pharmaceutical Chemistry Group Corp., Ltd. to sell; The polyacrylic ester that flow agent adopts Fenghua Nanhai Pharmaceutical Chemistry Group Corp., Ltd. to sell, the acylamide polymer that the transfer printing agent adopts Hubei to come this new chemical materials ltd to sell;
Second step was heated to the melting mixing homodisperse with the starting material of twin screw extruder after to pre-mixing evenly, and the starting material after the pre-mixing are melt extruded and are pressed into sheet stock, and forcing machine I district temperature is 115 ℃, and the temperature in forcing machine II district is 115 ℃; The SHJ series forcing machine that twin screw extruder adopts Nanjing Jin Ji mechanical means ltd to produce;
The 3rd step is with carrying out fragmentation, the fine more afterwards powder coating that is ground into after the sheet stock cooling;
In the 4th step, the used for powder coating standard sieve is sieved.
The powder coating that makes is tested by relevant criterion, met State Standard of the People's Republic of China's " aluminum alloy building section the 4th part: powder spraying section bar " requirement (GB5237.4-2008).
This shows, use powder coating of the present invention to satisfy and be used for the requirement that aluminium shape surface sprays.
Embodiment two
Prepare aluminium section bar by following step and use the wood grain powder coating:
The first step, with the starting material pre-mixing of following prescription:
Wherein, The acrylic acid esters co-polymer that brightening agent adopts Guangdong Dazhi Environmental Protection Technology Co., Ltd. to sell; Flow agent adopts goes up the polyacrylic ester that the inferior chemical industry of Korean pine ltd sells, the transfer powder that the transfer printing agent adopts Mount Huang favour powdered material of a specified duration ltd to sell;
Second step, carry out the melting mixing homodisperse with the starting material of twin screw extruder after to pre-mixing, the starting material after the pre-mixing are melt extruded and are pressed into sheet stock, forcing machine I district temperature is 125 ℃, the temperature in forcing machine II district is 108 ℃;
The 3rd step is with carrying out fragmentation, the fine more afterwards powder coating that is ground into after the sheet stock cooling;
In the 4th step, the used for powder coating standard sieve is sieved.
The powder coating that makes is tested by relevant criterion, met State Standard of the People's Republic of China's " aluminum alloy building section the 4th part: powder spraying section bar " requirement (GB5237.4-2008).
Embodiment three
Prepare aluminium section bar by following step and use the wood grain powder coating:
The first step, with the starting material pre-mixing of following prescription:
Wherein, the acrylic acid esters co-polymer that brightening agent adopts the new-type chemical plant of the two water of Jiangmen city Xinhui District to sell, the polyacrylic ester that flow agent adopts the rich sincere chemical industry of Dongguan City ltd to sell, the transfer powder of the rich just sincere public Science and Technology Ltd. in Wuhan is adopted in the transfer printing agent;
Second step, carry out the melting mixing homodisperse with the starting material of twin screw extruder after to pre-mixing, the starting material after the pre-mixing are melt extruded and are pressed into sheet stock, forcing machine I district temperature is 120 ℃, the temperature in forcing machine II district is 105 ℃;
The 3rd step is with carrying out fragmentation, the fine more afterwards powder coating that is ground into after the sheet stock cooling;
In the 4th step, the used for powder coating standard sieve is sieved.
The powder coating that makes is tested by relevant criterion, met State Standard of the People's Republic of China's " aluminum alloy building section the 4th part: powder spraying section bar " requirement (GB5237.4-2008).
Embodiment four
Prepare aluminium section bar by following step and use the wood grain powder coating:
The first step is even with the starting material pre-mixing of following prescription:
Wherein, The acrylic acid esters co-polymer that brightening agent adopts the new-type chemical plant of the two water of Jiangmen city Xinhui District to sell; The polyacrylic ester that flow agent adopts the new-type chemical plant of the two water of Jiangmen city Xinhui District to sell, the transfer powder that the transfer printing agent adopts Mount Huang favour powdered material of a specified duration ltd to sell;
Second step was heated to the melting mixing homodisperse with the starting material of twin screw extruder after to pre-mixing evenly, and the starting material after the pre-mixing are melt extruded and are pressed into sheet stock, and forcing machine I district temperature is 115 ℃, and the temperature in forcing machine II district is 115 ℃;
The 3rd step is with carrying out fragmentation, the fine more afterwards powder coating that is ground into after the sheet stock cooling;
In the 4th step, the used for powder coating standard sieve is sieved.
The powder coating that makes is tested by relevant criterion, met State Standard of the People's Republic of China's " aluminum alloy building section the 4th part: powder spraying section bar " requirement (GB5237.4-2008).
Embodiment five
Prepare aluminium section bar by following step and use the wood grain powder coating:
The first step, with the starting material pre-mixing of following prescription:
Wherein, The acrylic acid esters co-polymer that brightening agent adopts Fenghua Nanhai Pharmaceutical Chemistry Group Corp., Ltd. to sell; The polyacrylic ester that flow agent adopts Fenghua Nanhai Pharmaceutical Chemistry Group Corp., Ltd. to sell, the acylamide polymer that the transfer printing agent adopts Hubei to come this new chemical materials ltd to sell;
Second step, carry out the melting mixing homodisperse with the starting material of twin screw extruder after to pre-mixing, the starting material after the pre-mixing are melt extruded and are pressed into sheet stock, forcing machine I district temperature is 125 ℃, the temperature in forcing machine II district is 108 ℃;
The 3rd step is with carrying out fragmentation, the fine more afterwards powder coating that is ground into after the sheet stock cooling;
In the 4th step, the used for powder coating standard sieve is sieved.
The powder coating that makes is tested by relevant criterion, met State Standard of the People's Republic of China's " aluminum alloy building section the 4th part: powder spraying section bar " requirement (GB5237.4-2008).
Embodiment six
Prepare aluminium section bar by following step and use the wood grain powder coating:
The first step, with the starting material pre-mixing of following prescription:
Wherein, The acrylic acid esters co-polymer that brightening agent adopts the new-type chemical plant of the two water of Jiangmen city Xinhui District to sell; The polyacrylic ester that flow agent adopts the new-type chemical plant of the two water of Jiangmen city Xinhui District to sell, the acylamide polymer that the transfer printing agent adopts Hubei to come this new chemical materials ltd to sell;
Second step, carry out the melting mixing homodisperse with the starting material of twin screw extruder after to pre-mixing, the starting material after the pre-mixing are melt extruded and are pressed into sheet stock, forcing machine I district temperature is 120 ℃, the temperature in forcing machine II district is 105 ℃;
The 3rd step is with carrying out fragmentation, the fine more afterwards powder coating that is ground into after the sheet stock cooling;
In the 4th step, the used for powder coating standard sieve is sieved.
The powder coating that makes is tested by relevant criterion, met State Standard of the People's Republic of China's " aluminum alloy building section the 4th part: powder spraying section bar " requirement (GB5237.4-2008).
Embodiment seven
Prepare aluminium section bar by following step and use the wood grain powder coating:
The first step, with the starting material pre-mixing of following prescription:
Wherein, The acrylic acid esters co-polymer that brightening agent adopts Fenghua Nanhai Pharmaceutical Chemistry Group Corp., Ltd. to sell; The polyacrylic ester that flow agent adopts Fenghua Nanhai Pharmaceutical Chemistry Group Corp., Ltd. to sell, the acylamide polymer that the transfer printing agent adopts Hubei to come this new chemical materials ltd to sell;
Second step, carry out the melting mixing homodisperse with the starting material of twin screw extruder after to pre-mixing, the starting material after the pre-mixing are melt extruded and are pressed into sheet stock, forcing machine I district temperature is 122 ℃, the temperature in forcing machine II district is 108 ℃;
The 3rd step is with carrying out fragmentation, the fine more afterwards powder coating that is ground into after the sheet stock cooling;
In the 4th step, the used for powder coating standard sieve is sieved.
The powder coating that makes is tested by relevant criterion, met State Standard of the People's Republic of China's " aluminum alloy building section the 4th part: powder spraying section bar " requirement (GB5237.4-2008).
Embodiment eight
Prepare aluminium section bar by following step and use the wood grain powder coating:
The first step, with the starting material pre-mixing of following prescription:
Wherein, The acrylic acid esters co-polymer that brightening agent adopts Fenghua Nanhai Pharmaceutical Chemistry Group Corp., Ltd. to sell; The polyacrylic ester that flow agent adopts Fenghua Nanhai Pharmaceutical Chemistry Group Corp., Ltd. to sell, the acylamide polymer that the transfer printing agent adopts Hubei to come this new chemical materials ltd to sell;
Second step, carry out the melting mixing homodisperse with the starting material of twin screw extruder after to pre-mixing, the starting material after the pre-mixing are melt extruded and are pressed into sheet stock, forcing machine I district temperature is 120 ℃, the temperature in forcing machine II district is 105 ℃;
The 3rd step is with carrying out fragmentation, the fine more afterwards powder coating that is ground into after the sheet stock cooling;
In the 4th step, the used for powder coating standard sieve is sieved.
The powder coating that makes is tested by relevant criterion, met State Standard of the People's Republic of China's " aluminum alloy building section the 4th part: powder spraying section bar " requirement (GB5237.4-2008).
Embodiment nine
Prepare aluminium section bar by following step and use the wood grain powder coating:
The first step, with the starting material pre-mixing of following prescription:
Wherein, the acrylic acid esters co-polymer that brightening agent adopts the new-type chemical plant of the two water of Jiangmen city Xinhui District to sell, the polyacrylic ester that flow agent adopts the rich sincere chemical industry of Dongguan City ltd to sell, the transfer powder of the rich just sincere public Science and Technology Ltd. in Wuhan is adopted in the transfer printing agent;
Second step, carry out the melting mixing homodisperse with the starting material of twin screw extruder after to pre-mixing, the starting material after the pre-mixing are melt extruded and are pressed into sheet stock, forcing machine I district temperature is 120 ℃, the temperature in forcing machine II district is 105 ℃;
The 3rd step is with carrying out fragmentation, the fine more afterwards powder coating that is ground into after the sheet stock cooling;
In the 4th step, the used for powder coating standard sieve is sieved.
The powder coating that makes is tested by relevant criterion, met State Standard of the People's Republic of China's " aluminum alloy building section the 4th part: powder spraying section bar " requirement (GB5237.4-2008).
The foregoing description is a preferred implementation of the present invention; But embodiment of the present invention is not restricted to the described embodiments; Other any do not deviate from change, the modification done under spirit of the present invention and the principle, substitutes, combination, simplify; All should be the substitute mode of equivalence, be included within protection scope of the present invention.
Claims (10)
1. an aluminium section bar is used the wood grain powder coating, it is characterized in that, it is by the raw material preparing of following weight per-cent, and concrete prescription is:
2. aluminium section bar according to claim 1 is used the wood grain powder coating, it is characterized in that, described brightening agent is an acrylic acid esters co-polymer.
3. aluminium section bar according to claim 1 is used the wood grain powder coating, it is characterized in that, described flow agent is a polyacrylic ester.
4. aluminium section bar according to claim 1 is used the wood grain powder coating, it is characterized in that, described transfer printing agent is an acylamide polymer.
5. use the wood grain powder coating according to each described aluminium section bar in the claim 1 to 4, it is characterized in that the weight ratio of said saturated terminal carboxyl polyester resin and said beta-hydroxy alkylamide is: 93: 7.
6. an aluminium section bar is characterized in that with the preparation method of wood grain powder coating, may further comprise the steps:
The first step, drop into pre-mixing in the compounding jar together with the starting material of following prescription:
Second goes on foot, and the starting material after the pre-mixing is heated to fusion and extrudes be pressed into sheet stock;
In the 3rd step, sheet stock is carried out fragmentation after being cooled to room temperature under the normal pressure, the fine more afterwards powder coating that is ground into.
7. aluminium section bar according to claim 6 is with the preparation method of wood grain powder coating; It is characterized in that: being heated to fusion and extruding in said second step is meant with the starting material of twin screw extruder after to pre-mixing and carries out the melting mixing homodisperse and extrude; Wherein, Forcing machine I district temperature is 115～125 ℃, and the temperature in forcing machine II district is 105～115 ℃.
8. aluminium section bar according to claim 6 is characterized in that with the preparation method of wood grain powder coating: the fine pulverizing in said the 3rd step is meant that being crushed to powder diameter is 20～80 microns.
9. aluminium section bar according to claim 6 is characterized in that with the preparation method of wood grain powder coating: the fine pulverizing in said the 3rd step is meant with the ACM mill carries out stage reduction.
10. aluminium section bar according to claim 6 is characterized in that with the preparation method of wood grain powder coating: after said the 3rd step, can also comprise for the 4th step: the used for powder coating standard sieve is sieved.
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| CN102775886A (en) * | 2012-08-22 | 2012-11-14 | 广东华江粉末科技有限公司 | Thermal-insulation powder coating for aluminum profiles as well as preparation method and application thereof |
| CN103409045A (en) * | 2013-08-20 | 2013-11-27 | 成都桑瑞斯粉末涂料有限公司 | Powder coating capable of replacing aluminium alloy chromating and preparation method thereof |
| CN105728302A (en) * | 2016-04-07 | 2016-07-06 | 太仓吉达喷涂有限公司 | Method for electrostatic spraying of powder coating on surface of aluminum profile |
| CN105838200A (en) * | 2016-04-07 | 2016-08-10 | 太仓吉达喷涂有限公司 | Nano-modified wear-resistant powdery coating used for aluminum sections |
| CN107099179A (en) * | 2017-03-31 | 2017-08-29 | 佛山市涂亿装饰材料科技有限公司 | A kind of production technology of imitative silicified wood crystal wood grain powder coating product |
| CN108070314A (en) * | 2017-12-29 | 2018-05-25 | 安徽鑫发铝业有限公司 | A kind of corrosion-resistant transfer printing wood grain aluminium section bar |
| CN112048236A (en) * | 2020-09-09 | 2020-12-08 | 黄山佳杰新材料科技有限公司 | Extinction type thermal transfer powder coating and preparation method and application thereof |
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| CN108070314A (en) * | 2017-12-29 | 2018-05-25 | 安徽鑫发铝业有限公司 | A kind of corrosion-resistant transfer printing wood grain aluminium section bar |
| CN112048236A (en) * | 2020-09-09 | 2020-12-08 | 黄山佳杰新材料科技有限公司 | Extinction type thermal transfer powder coating and preparation method and application thereof |
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| CN102634269B (en) | 2015-03-04 |
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