Summary of the invention
Goal of the invention: technical problem to be solved by this invention is to overcome the deficiencies in the prior art, provide a kind of oil repellent energy strong, clean easily, have certain self-cleaning function and powder coating corrosion-resistant and the oil repellent heat curing-type that weathering resistance is strong, the preparation method that another object of the present invention provides the powder coating of this oil repellent heat curing-type is being used to prepare oil repellent, the application in the easy cleaning decorative coveringn with it.
Technical scheme: in order to realize above purpose, oil repellent heat curable powder coating provided by the invention is made up of the raw material of following parts by weight:
20~90 parts of acrylic resins
5~20 parts of silicone resins
4~50 parts in solidifying agent
0.1~1.5 part of flow agent
0.2~0.8 part of air release agent
5~45 parts of color stuffings
0~20 part of thermosetting fluoro carbon resin
0~50 part of hydroxy polyester resin
0~30 part of other auxiliary agent
As preferred version, oil repellent heat curable powder coating provided by the invention is made up of the raw material of following parts by weight:
40~90 parts of acrylic resins
10~20 parts of silicone resins
10~40 parts in solidifying agent
0.1~1.5 part of flow agent
0.2~0.8 part of air release agent
10~35 parts of color stuffings
10~40 parts of hydroxy polyester resins
0~20 part of thermosetting fluoro carbon resin
0~20 part of other auxiliary agent
Wherein acrylic resin is the matrix resin of oil repellent heat curable powder coating provided by the invention, acrylic resin is the resin of being made by esters of acrylic acid and methyl acrylic ester and other olefinic type monomers copolymerization, and acrylic resin can be divided into thermoplastic acrylic resin and thermosetting acrylic resin again according to the difference of structure and membrane formation mechanism.Thermoplastic acrylic resin does not take place further crosslinked in film process, therefore its relative molecular weight is bigger, have good guarantor's light tint retention, water-fast chemical resistant properties, fast drying, easy construction, be easy to construct recoat and doing over again, thermoplastic acrylic resin is widely used in fields such as automobile, electrical equipment, machinery, buildings.Thermosetting acrylic resin is meant and has certain functional group in structure, the general relative molecular weight of thermosetting resin is lower, and thermosetting acrylic coating has excellent fullness ratio, gloss, hardness, solvent resistance, weather resisteant, nondiscoloration when high bake, brightness reversion not.Therefore select the matrix resin of acrylic resin for use as oil repellent heat curable powder coating of the present invention.
Oil repellent heat curable powder coating provided by the invention, compound organosilicon resin in acrylic resin wherein, silicone resin is highly cross-linked cancellated organopolysiloxane, silicone resin is a kind of heat cured plastics, one of performance that it is the most outstanding is excellent thermo-oxidative stability, after 24 hours, silicone resin weightlessness only is 2~8% 250 ℃ of heating.In addition, silicone resin also has remarkable electrical insulation capability, moisture resistance, waterproof, antirust, cold-resistant, anti-ozone and weather resistance, corrosion resistance nature to the moisture chemical reagent of the overwhelming majority is good, therefore its chemically-resistant, corrosion resistance nature strengthen behind the acrylic resin compound organosilicon resin, and can produce high fine and close oil repellent in final film coated surface and film, thereby have excellent oil repellent energy.
Be added with thermosetting fluoro carbon resin and hydroxy polyester resin in the oil repellent heat curable powder coating of the present invention, wherein the thermosetting fluoro carbon resin has excellent chemical resistant properties, weathering resistance, oil repellency and high-decoration, can be widely used in material of construction, car body and household appliances etc. such as bridge, door and window, enclosure wall, family expenses mark look material.
Other auxiliary agent of the present invention can be curing catalysts, solubilizing agent and/or aluminum oxide growth agent.Can add the curing catalysts that promotes resin solidification as required, perhaps add promotion powder coating dissolved solubilizing agent according to actual needs, perhaps also can add aluminum oxide growth agent auxiliary agent according to actual needs.Wherein above-described wax class matting agent, solubilizing agent, resin solidification catalyzer and aluminum oxide growth agent auxiliary agent etc. all can be commonly used on the market, toner coating resin curing catalysts that can buy and aluminum oxide growth agent auxiliary agent.
Oil repellent heat curable powder coating provided by the invention, wherein said solidifying agent is isocyanate curing agent, epoxy curing agent, curable urethane resin agent or polyester resin solidifying agent etc., can improve the cross-linking properties of powder coating and be coated with membrane stability after adding solidifying agent, also can play the effect of powder quick coating physical dryness.
Oil repellent heat curable powder coating of the present invention, organic color stuffing such as can coupling red, the thioindigo of color stuffing, anthraquinone or azo or be inorganic color stuffings such as titanium dioxide, ferric oxide, magnesium oxide etc. wherein, the color and the opacifying power of coating can be strengthened after adding color stuffing, and the texture of coating can be strengthened.
Oil repellent heat curable powder coating of the present invention, by in the powder coating prescription of acrylic resin and silicone resin, composite again thermosetting fluoro carbon resin or hydroxy polyester resin, and add other functional agents, final film coated surface can form a kind of high dense film, film coated surface can form the polarity that greasy dirt is repelled mutually, oily matter can not form persistence and adhere on the surface of filming, only just can put on the skin easily without solvent when removing the oiliness stain with cloth or its fibrous paper, film and have good oil repellent energy, anti-cleaning, corrosion-resistant, Heat stability is good, and economical, environmental protection, have certain self-cleaning function, of many uses.
The preparation method of oil repellent heat curable powder coating provided by the invention specifically may further comprise the steps:
1. choose acrylic resin, silicone resin, solidifying agent, flow agent, air release agent, color stuffing, thermosetting fluoro carbon resin, hydroxy polyester resin and other auxiliary agent by weight and put into mixing tank (1), after extruding by forcing machine (2) then, cool off by Blowing stopper (3), also can carry freezing air further to cool off, obtain the compressing tablet material with heat exchanger (4);
2. get the compressing tablet material that 1. step obtains, obtain meal, use main grinding machine (6) secondary to pulverize grinding again and obtain fine powder, in the regrind process, can use heat exchanger (4) to carry chilled air cools, obtain fine powder by preliminary grinding of secondary grinding machine (5);
3. get the fine powder that 2. step obtains, after separating by cyclonic separator (7), sieve by screen cloth (8) again, detection, finished product promptly obtain the powder coating of oil repellent heat curing-type.
Among the wherein above preparation method, step other auxiliary agent described in 1. can matting agent, curing catalysts, solubilizing agent and/or aluminum oxide growth agent.
Among the wherein above preparation method, the solidifying agent of step described in 1. is isocyanate curing agent, epoxy curing agent, curable urethane resin agent or polyester resin solidifying agent etc.
Wherein step 3. powder coating can cross 80 to 200 purposes sieves, obtain the powder coating of different-grain diameter.
Oil repellent heat curable powder coating of the present invention can prepare with the spraying machine spraying of routine has the product that the good kitchen tackle of oil repellent energy, self-cleaning mirror, door and window etc. are subject to the oily matter pollution.
The application of oil repellent heat curable powder coating of the present invention in the oil repellent automatic cleaning coating of preparation kitchen tackle, public transport platform, square, park, building construction wall.
When oil repellent heat curable powder coating of the present invention is specifically used, it is clean earlier the sandblast pre-treatment to be carried out on workpiece or surface, place, spray coating powder paint then, fusion levelling at high temperature and then through hot setting postcooling workpiece, obtains the Workpiece inspection warehouse-in then, or oil repellent heat curable powder coating layer provided by the invention and curing in the spraying of needs place, playing oil repellent can be good, has certain automatic cleaning action, the filming of corrosion-resistant, weather.
The benefit effect: oil repellent heat curable powder coating provided by the invention is compared with powder coating of the prior art and is had the following advantages:
1, oil repellent heat curable powder coating provided by the invention, show through a large amount of experiments, each raw material form and raw material between proportioning scientific and reasonable, have excellent oil repellent energy and resistance to chemical attack and thermostability preferably with filming of preparing of powder coating spraying provided by the invention.
2, oil repellent heat curable powder coating provided by the invention, its matrix resin is an acrylic resin, again the compound organosilicon resin, thermosetting fluoro carbon resin or hydroxy polyester resin, coordinate mutually between each resin, acting in conjunction can obtain a kind of super oil type powder coating of refusing.Finally can form a kind of high dense film with powder coating provided by the invention in film coated surface, film coated surface can form the polarity that greasy dirt is repelled mutually, oily matter can not form persistence and adhere on the surface of filming, only just can put on the skin easily without solvent when removing the oiliness stain with cloth or its fibrous paper, film and have good oil repellent energy, anti-cleaning, and film corrosion-resistant, Heat stability is good, economy, environmental protection, have certain self-cleaning function, of many uses.
3, the preparation method of oil repellent heat curable powder coating provided by the invention, technology is reasonable, and is workable, the production efficiency height, energy consumption is low, and the product qualified rate height for preparing can be realized industrialized production.
Embodiment:
Below in conjunction with specific embodiment, further illustrate the present invention, should understand these embodiment only is used to the present invention is described and is not used in and limit the scope of the invention, after having read the present invention, those skilled in the art all fall within the application's claims institute restricted portion to the modification of the various equivalent form of values of the present invention.
Embodiment 1
1, the oil repellent heat curable powder coating is made up of following parts by weight raw material:
26 parts of acrylic resins
10 parts of silicone resins
6 parts of thermosetting fluoro carbon resins
12 parts in solidifying agent
1 part of flow agent
0.5 part of air release agent
26.5 parts of color stuffings
2 parts of matting agents
2, the preparation of oil repellent heat curable powder coating:
1. choose acrylic resin, silicone resin, thermosetting fluoro carbon resin, solidifying agent, flow agent, air release agent, color stuffing and matting agent by above 1 described parts by weight and put into mixing tank (1), then by after forcing machine (2) coextrusion, pass through Blowing stopper (3) cooling again, also can carry freezing air further to cool off, obtain the compressing tablet material with heat exchanger (4);
2. get the compressing tablet material that 1. step obtains, obtain meal, use main grinding machine (6) secondary to pulverize grinding again and obtain fine powder, in the regrind process, can use heat exchanger (4) to carry chilled air cools, obtain fine powder by preliminary grinding of secondary grinding machine (5);
3. get the fine powder that 2. step obtains, after separating by cyclonic separator (7), sieve by screen cloth (8) again, detect finished product.
3, adopt 2 powder coating that prepare to be filmed, carry out performance test then to filming, concrete test index and result are as shown in table 1:
The film performance detected result that table 1 powder coating prepares
Test event |
Pliability test |
Shock test |
Drawing test |
60 ° of gloss |
Cross-hatching sticking power |
Reference standard |
GB/T 6742-2007 |
GB/T 1732-1993 |
GB/T 9753-2007 |
GB/T 9754-2007 |
GB/T 9286-1998 |
Performance data |
10mm? |
40kg-cm? |
5.7mm? |
70 gloss unit |
0 grade |
4, adopt 2 powder coating that prepare to be filmed, carry out the oil repellent test to filming.
Test event is immortal oil pen (black, a redness), the non-setting adhesive paster, and the kitchen oil stain test, test sample plate is spraying solidified aluminium material model, testing method and result are as follows:
1, is drawn in film coated surface with the oil pen, treats to parch fully (more than 10 minutes), wipe, easily just can wipe and leave no trace with dried cloth.
2, on the non-setting adhesive paster is attached to and films, firmly compacting.Then paster is peeled off, required to peel off easily, fail released part can easily wipe with moistening rag.
3, with 10 of the kitchen oil of collecting, drop in the film coated surface room temperature and place more than 7 days, the greasy dirt that uses cloth to wipe with, greasy dirt easily sassafras fall film no obvious loss of gloss and variable color.
Embodiment 2
1, the oil repellent heat curable powder coating is made up of following parts by weight raw material:
25 parts of acrylic resins
5 parts of silicone resins
8 parts of thermosetting fluoro carbon resins
25 parts of hydroxy polyester resins
12 parts of isocyanate curing agents
1 part of flow agent
0.5 part of air release agent
26.5 parts of color stuffings
2 parts of matting agents
2, the preparation of oil repellent heat curable powder coating:
1. choose acrylic resin, silicone resin, thermosetting fluoro carbon resin, hydroxy polyester resin, isocyanate curing agent, flow agent, air release agent, color stuffing and matting agent by above 1 described parts by weight and put into mixing tank (1), then by after forcing machine (2) coextrusion, pass through Blowing stopper (3) cooling again, also can carry freezing air further to cool off, obtain the compressing tablet material with heat exchanger (4);
2. get the compressing tablet material that 1. step obtains, obtain meal, use main grinding machine (6) secondary to pulverize grinding again and obtain fine powder, in the regrind process, can use heat exchanger (4) to carry chilled air cools, obtain fine powder by preliminary grinding of secondary grinding machine (5);
3. get the fine powder that 2. step obtains, after separating by cyclonic separator (7), sieve by screen cloth (8) again, detect finished product.
3, adopt 2 powder coating that prepare to be filmed, carry out performance test then to filming, concrete test index and result are as shown in table 2:
The film performance detected result that table 2 powder coating prepares
Test event |
Pliability test |
Shock test |
Drawing test |
60 ° of gloss |
Cross-hatching sticking power |
Reference standard |
GB/T?6742-2007 |
GB/T1732-1993 |
GB/T9753-2007 |
GB/T9754-2007 |
GB/T9286- 1998 |
Performance data |
10mm? |
30kg-cm? |
4.8mm? |
66 gloss unit |
0 grade |
4, adopt 2 powder coating that prepare to be filmed, carry out the oil repellent test to filming.
Test event is immortal oil pen (black, a redness), the non-setting adhesive paster, and the kitchen oil stain test, test sample plate is spraying solidified aluminium material model, testing method and result are as follows:
1, is drawn in film coated surface with the oil pen, treats to parch fully (more than 10 minutes), wipe, easily just can wipe and leave no trace with dried cloth.
2, on the non-setting adhesive paster is attached to and films, firmly compacting.Then paster is peeled off, required to peel off easily, fail released part can easily wipe with moistening rag.
3, with 10 of the kitchen oil of collecting, drop in the film coated surface room temperature and place more than 7 days, the greasy dirt that uses cloth to wipe with, greasy dirt easily sassafras fall film no obvious loss of gloss and variable color.
Embodiment 3
1, the oil repellent heat curable powder coating is made up of following parts by weight raw material:
25 parts of acrylic resins
10 parts of silicone resins
23 parts of hydroxy polyester resins
12 parts of epoxy curing agents
1 part of flow agent
0.5 part of air release agent
26.5 parts of color stuffings
1 part of matting agent
1 part of curing catalysts
2, the preparation of oil repellent heat curable powder coating:
1. choose acrylic resin, silicone resin, hydroxy polyester resin, epoxy curing agent, flow agent, air release agent, color stuffing, matting agent and curing catalysts by above 1 described parts by weight and put into mixing tank (1), then by after forcing machine (2) coextrusion, pass through Blowing stopper (3) cooling again, also can carry freezing air further to cool off, obtain the compressing tablet material with heat exchanger (4);
2. get the compressing tablet material that 1. step obtains, obtain meal, use main grinding machine (6) secondary to pulverize grinding again and obtain fine powder, in the regrind process, can use heat exchanger (4) to carry chilled air cools, obtain fine powder by preliminary grinding of secondary grinding machine (5);
3. get the fine powder that 2. step obtains, after separating by cyclonic separator (7), sieve by screen cloth (8) again, detect finished product.
3, adopt 2 powder coating that prepare to be filmed, carry out performance test then to filming, concrete test index and result are as shown in table 3:
The film performance detected result that table 3 powder coating prepares
Test event |
Pliability test |
Shock test |
Drawing test |
60 ° of gloss |
Cross-hatching sticking power |
Reference standard |
GB/T6742-200 7 |
GB/T1732-19 93 |
GB/T9753-2007? |
GB/T9754-2007? |
GB/T9286-1998? |
Performance data |
15mm? |
30kg-cm? |
4.3mm? |
55 gloss unit |
0 grade |
4, adopt 2 powder coating that prepare to be filmed, carry out the oil repellent test to filming.
Test event is immortal oil pen (black, a redness), the non-setting adhesive paster, and the kitchen oil stain test, test sample plate is spraying solidified aluminium material model, testing method and result are as follows:
1, is drawn in film coated surface with the oil pen, treats to parch fully (more than 10 minutes), wipe, easily just can wipe and leave no trace with dried cloth.
2, on the non-setting adhesive paster is attached to and films, firmly compacting.Then paster is peeled off, required to peel off easily, fail released part can easily wipe with moistening rag.
3, with 10 of the kitchen oil of collecting, drop in the film coated surface room temperature and place more than 7 days, the greasy dirt that uses cloth to wipe with, greasy dirt easily sassafras fall film no obvious loss of gloss and variable color.
Embodiment 4
1, the oil repellent heat curable powder coating is made up of following parts by weight raw material:
85 parts of acrylic resins
20 parts of silicone resins
45 parts in solidifying agent
1.5 parts of flow agents
0.8 part of air release agent
40 parts of color stuffings
2, the preparation of oil repellent heat curable powder coating:
1. choose acrylic resin, silicone resin, solidifying agent, flow agent, air release agent, color stuffing by above 1 described parts by weight and put into mixing tank (1), then by after forcing machine (2) coextrusion, pass through Blowing stopper (3) cooling again, also can carry freezing air further to cool off, obtain the compressing tablet material with heat exchanger (4);
2. get the compressing tablet material that 1. step obtains, obtain meal, use main grinding machine (6) secondary to pulverize grinding again and obtain fine powder, in the regrind process, can use heat exchanger (4) to carry chilled air cools, obtain fine powder by preliminary grinding of secondary grinding machine (5);
3. get the fine powder that 2. step obtains, after separating by cyclonic separator (7), sieve by screen cloth (8) again, detect finished product.
3, adopt 2 powder coating that prepare to be filmed, carry out performance test then to filming, concrete test index and result are as shown in table 4:
The film performance detected result that table 4 powder coating prepares
Test event |
Pliability test |
Shock test |
Drawing test |
60 ° of gloss |
Cross-hatching sticking power |
Reference standard |
GB/T6742-2007? |
GB/T1732-1993? |
GB/T9753-2007? |
GB/T9754-2007? |
GB/T9286-1998? |
Performance data |
12mm? |
32kg-cm? |
4.5mm? |
63 gloss unit |
0 grade |
4, adopt 2 powder coating that prepare to be filmed, carry out the oil repellent test to filming.
4.1 test event is immortal oil pen (black, a redness), the non-setting adhesive paster, and the kitchen oil stain test, test sample plate is spraying solidified aluminium material model, testing method and result are as follows:
1, is drawn in film coated surface with the oil pen, treats to parch fully (more than 10 minutes), wipe, easily just can wipe and leave no trace with dried cloth.
2, on the non-setting adhesive paster is attached to and films, firmly compacting.Then paster is peeled off, required to peel off easily, fail released part can easily wipe with moistening rag.
3, with 10 of the kitchen oil of collecting, drop in the film coated surface room temperature and place more than 7 days, the greasy dirt that uses cloth to wipe with, greasy dirt easily sassafras fall film no obvious loss of gloss and variable color.
Embodiment 5
1, the oil repellent heat curable powder coating is made up of following parts by weight raw material:
40 parts of acrylic resins
10 parts of silicone resins
40 parts of hydroxy polyester resins
45 parts of curable urethane resin agent
1.5 parts of flow agents
0.8 part of air release agent
40 parts of color stuffings
10 parts of matting agents
2, the preparation of oil repellent heat curable powder coating:
1. choose acrylic resin, silicone resin, hydroxy polyester resin, curable urethane resin agent, flow agent, air release agent, color stuffing and matting agent by above 1 described parts by weight and put into mixing tank (1), then by after forcing machine (2) coextrusion, pass through Blowing stopper (3) cooling again, also can carry freezing air further to cool off, obtain the compressing tablet material with heat exchanger (4);
2. get the compressing tablet material that 1. step obtains, obtain meal, use main grinding machine (6) secondary to pulverize grinding again and obtain fine powder, in the regrind process, can use heat exchanger (4) to carry chilled air cools, obtain fine powder by preliminary grinding of secondary grinding machine (5);
3. get the fine powder that 2. step obtains, after separating by cyclonic separator (7), sieve by screen cloth (8) again, detect finished product.
3, adopt 2 powder coating that prepare to be filmed, carry out performance test then to filming, concrete test index and result are as shown in table 5:
The film performance detected result that table 5 powder coating prepares
Test event |
Pliability test |
Shock test |
Drawing test |
60 ° of gloss |
Cross-hatching sticking power |
Reference standard |
GB/T?6742-2007 |
GB/T1732-1993 |
GB/T9753-2007 |
GB/T9754-2007 |
GB/T9286- 1998 |
Performance data |
11mm? |
34kg-cm? |
4.9mm? |
69 gloss unit |
0 grade |
4, adopt 2 powder coating that prepare to be filmed, carry out the oil repellent test to filming.
4.1 test event is immortal oil pen (black, a redness), the non-setting adhesive paster, and the kitchen oil stain test, test sample plate is spraying solidified aluminium material model, testing method and result are as follows:
1, is drawn in film coated surface with the oil pen, treats to parch fully (more than 10 minutes), wipe, easily just can wipe and leave no trace with dried cloth.
2, on the non-setting adhesive paster is attached to and films, firmly compacting.Then paster is peeled off, required to peel off easily, fail released part can easily wipe with moistening rag.
3, with 10 of the kitchen oil of collecting, drop in the film coated surface room temperature and place more than 7 days, the greasy dirt that uses cloth to wipe with, greasy dirt easily sassafras fall film no obvious loss of gloss and variable color.
Embodiment 6
1, the oil repellent heat curable powder coating is made up of following parts by weight raw material:
60 parts of acrylic resins
15 parts of silicone resins
20 parts of thermosetting fluoro carbon resins
45 parts of polyester resin solidifying agents
1.5 parts of flow agents
0.8 part of air release agent
40 parts of color stuffings
12 parts of solubilizing agent
2, the preparation of oil repellent heat curable powder coating:
1. choose acrylic resin, silicone resin, thermosetting fluoro carbon resin, polyester resin solidifying agent, flow agent, air release agent, color stuffing and solubilizing agent by above 1 described parts by weight and put into mixing tank (1), then by after forcing machine (2) coextrusion, pass through Blowing stopper (3) cooling again, also can carry freezing air further to cool off, obtain the compressing tablet material with heat exchanger (4);
2. get the compressing tablet material that 1. step obtains, obtain meal, use main grinding machine (6) secondary to pulverize grinding again and obtain fine powder, in the regrind process, can use heat exchanger (4) to carry chilled air cools, obtain fine powder by preliminary grinding of secondary grinding machine (5);
3. get the fine powder that 2. step obtains, after separating by cyclonic separator (7), sieve by screen cloth (8) again, detect finished product.
3, adopt 2 powder coating that prepare to be filmed, carry out performance test then to filming, concrete test index and result are as shown in table 6:
The film performance detected result that table 6 powder coating prepares
Test event |
Pliability test |
Shock test |
Drawing test |
60 ° of gloss |
Cross-hatching sticking power |
Reference standard |
GB/T6742-2007? |
GB/T1732-1993? |
GB/T9753-2007? |
GB/T9754-2007? |
GB/T9286-1998? |
Performance data |
14mm? |
36kg-cm? |
5.1mm? |
72 gloss unit |
0 grade |
4, adopt 2 powder coating that prepare to be filmed, carry out the oil repellent test to filming.
4.1 test event is immortal oil pen (black, a redness), the non-setting adhesive paster, and the kitchen oil stain test, test sample plate is spraying solidified aluminium material model, testing method and result are as follows:
1, is drawn in film coated surface with the oil pen, treats to parch fully (more than 10 minutes), wipe, easily just can wipe and leave no trace with dried cloth.
2, on the non-setting adhesive paster is attached to and films, firmly compacting.Then paster is peeled off, required to peel off easily, fail released part can easily wipe with moistening rag.
3, with 10 of the kitchen oil of collecting, drop in the film coated surface room temperature and place more than 7 days, the greasy dirt that uses cloth to wipe with, greasy dirt easily sassafras fall film no obvious loss of gloss and variable color.
Embodiment 7
1, the oil repellent heat curable powder coating is made up of following parts by weight raw material:
30 parts of acrylic resins
10 parts of silicone resins
10 parts in solidifying agent
0.2 part of flow agent
0.2 part of air release agent
10 parts of color stuffings
2, the preparation of oil repellent heat curable powder coating:
1. choose acrylic resin, silicone resin, solidifying agent, flow agent, air release agent, color stuffing by above 1 described parts by weight and put into mixing tank (1), then by after forcing machine (2) coextrusion, pass through Blowing stopper (3) cooling again, also can carry freezing air further to cool off, obtain the compressing tablet material with heat exchanger (4);
2. get the compressing tablet material that 1. step obtains, obtain meal, use main grinding machine (6) secondary to pulverize grinding again and obtain fine powder, in the regrind process, can use heat exchanger (4) to carry chilled air cools, obtain fine powder by preliminary grinding of secondary grinding machine (5);
3. get the fine powder that 2. step obtains, after separating by cyclonic separator (7), sieve by screen cloth (8) again, detect finished product.
3, adopt 2 powder coating that prepare to be filmed, carry out performance test then to filming, concrete test index and result are as shown in table 7:
The film performance detected result that table 7 powder coating prepares
Test event |
Pliability test |
Shock test |
Drawing test |
60 ° of gloss |
Cross-hatching sticking power |
Reference standard |
GB/T6742-2007 |
GB/T1732-1993 |
GB/T9753-2007 |
GB/T9754-2007 |
GB/T9286- 1998 |
Performance data |
10mm? |
30kg-cm? |
4.2mm? |
58 gloss unit |
0 grade |
4, adopt 2 powder coating that prepare to be filmed, carry out the oil repellent test to filming.
4.1 test event is immortal oil pen (black, a redness), the non-setting adhesive paster, and the kitchen oil stain test, test sample plate is spraying solidified aluminium material model, testing method and result are as follows:
1, is drawn in film coated surface with the oil pen, treats to parch fully (more than 10 minutes), wipe, easily just can wipe and leave no trace with dried cloth.
2, on the non-setting adhesive paster is attached to and films, firmly compacting.Then paster is peeled off, required to peel off easily, fail released part can easily wipe with moistening rag.
3, with 10 of the kitchen oil of collecting, drop in the film coated surface room temperature and place more than 7 days, the greasy dirt that uses cloth to wipe with, greasy dirt easily sassafras fall film no obvious loss of gloss and variable color.
Embodiment 8
1, the oil repellent heat curable powder coating is made up of following parts by weight raw material:
60 parts of acrylic resins
15 parts of silicone resins
30 parts of hydroxy polyester resins
10 parts of thermosetting fluoro carbon resins
30 parts of isocyanate curing agents
0.8 part of flow agent
0.8 part of air release agent
35 parts of color stuffings
2, the preparation of oil repellent heat curable powder coating:
1. choose acrylic resin, silicone resin, hydroxy polyester resin, thermosetting fluoro carbon resin, isocyanate curing agent, flow agent, air release agent, color stuffing by above 1 described parts by weight and put into mixing tank (1), then by after forcing machine (2) coextrusion, pass through Blowing stopper (3) cooling again, also can carry freezing air further to cool off, obtain the compressing tablet material with heat exchanger (4);
2. get the compressing tablet material that 1. step obtains, obtain meal, use main grinding machine (6) secondary to pulverize grinding again and obtain fine powder, in the regrind process, can use heat exchanger (4) to carry chilled air cools, obtain fine powder by preliminary grinding of secondary grinding machine (5);
3. get the fine powder that 2. step obtains, after separating by cyclonic separator (7), sieve by screen cloth (8) again, detect finished product.
3, adopt 2 powder coating that prepare to be filmed, carry out performance test then to filming, concrete test index and result are as shown in table 8:
The film performance detected result that table 8 powder coating prepares
Test event |
Pliability test |
Shock test |
Drawing test |
60 ° of gloss |
Cross-hatching sticking power |
Reference standard |
GB/T6742-2007 |
GB/T1732-1993 |
GB/T9753-2007 |
GB/T9754-2007 |
GB/T9286- 1998 |
Performance data |
15mm? |
41kg-cm? |
6.2mm? |
75 gloss unit |
0 grade |
4, adopt 2 powder coating that prepare to be filmed, carry out the oil repellent test to filming.
4.1 test event is immortal oil pen (black, a redness), the non-setting adhesive paster, and the kitchen oil stain test, test sample plate is spraying solidified aluminium material model, testing method and result are as follows:
1, is drawn in film coated surface with the oil pen, treats to parch fully (more than 10 minutes), wipe, easily just can wipe and leave no trace with dried cloth.
2, on the non-setting adhesive paster is attached to and films, firmly compacting.Then paster is peeled off, required to peel off easily, fail released part can easily wipe with moistening rag.
3, with 10 of the kitchen oil of collecting, drop in the film coated surface room temperature and place more than 7 days, the greasy dirt that uses cloth to wipe with, greasy dirt easily sassafras fall film no obvious loss of gloss and variable color.
Embodiment 9
1, the oil repellent heat curable powder coating is made up of following parts by weight raw material:
80 parts of acrylic resins
12 parts of silicone resins
50 parts of hydroxy polyester resins
40 parts of isocyanate curing agents
1.2 parts of flow agents
0.8 part of air release agent
35 parts of color stuffings
15 parts of matting agents
10 parts of solubilizing agent
2, the preparation of oil repellent heat curable powder coating:
1. choose acrylic resin, silicone resin, hydroxy polyester resin, isocyanate curing agent, flow agent, air release agent, color stuffing and matting agent by above 1 described parts by weight and put into mixing tank (1), then by after forcing machine (2) coextrusion, pass through Blowing stopper (3) cooling again, also can carry freezing air further to cool off, obtain the compressing tablet material with heat exchanger (4);
2. get the compressing tablet material that 1. step obtains, obtain meal, use main grinding machine (6) secondary to pulverize grinding again and obtain fine powder, in the regrind process, can use heat exchanger (4) to carry chilled air cools, obtain fine powder by preliminary grinding of secondary grinding machine (5);
3. get the fine powder that 2. step obtains, after separating by cyclonic separator (7), sieve by screen cloth (8) again, detect finished product.
3, adopt 2 powder coating that prepare to be filmed, carry out performance test then to filming, concrete test index and result are as shown in table 9:
The film performance detected result that table 9 powder coating prepares
Test event |
Pliability test |
Shock test |
Drawing test |
60 ° of gloss |
Cross-hatching sticking power |
Reference standard |
GB/T6742-2007 |
GB/T1732-1993 |
GB/T9753-2007 |
GB/T9754-2007 |
GB/T9286- 1998 |
Performance data |
13mm? |
40kg-cm? |
6.0mm? |
71 gloss unit |
0 grade |
4, adopt 2 powder coating that prepare to be filmed, carry out the oil repellent test to filming.
4.1 test event is immortal oil pen (black, a redness), the non-setting adhesive paster, and the kitchen oil stain test, test sample plate is spraying solidified aluminium material model, testing method and result are as follows:
1, is drawn in film coated surface with the oil pen, treats to parch fully (more than 10 minutes), wipe, easily just can wipe and leave no trace with dried cloth.
2, on the non-setting adhesive paster is attached to and films, firmly compacting.Then paster is peeled off, required to peel off easily, fail released part can easily wipe with moistening rag.
3, with 10 of the kitchen oil of collecting, drop in the film coated surface room temperature and place more than 7 days, the greasy dirt that uses cloth to wipe with, greasy dirt easily sassafras fall film no obvious loss of gloss and variable color.
Show by the detected result of above table 1 to table 9, filming that the oil repellent heat curable powder coating of different proportionings provided by the invention prepares has good shock resistance, corrosion resistance nature, high comprehensive performance, each detects index and all meets the requirements prescribed, and show that through oil repellent test detection powder coating provided by the invention has good oil repellent energy and high gloss retention energy, various greasy dirts are not needed organic solvent or other surfactant washing, only need just can easily insert with cloth or fibrous paper.And oil repellent heat curable powder coating provided by the invention is can be ornamental strong, has wide range of applications.Therefore, powder coating provided by the invention is expected to become oil repellent heat curable powder coating of new generation.