CN107163632A - A kind of plastic lamp shade heat-resisting paint - Google Patents
A kind of plastic lamp shade heat-resisting paint Download PDFInfo
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- CN107163632A CN107163632A CN201710567469.7A CN201710567469A CN107163632A CN 107163632 A CN107163632 A CN 107163632A CN 201710567469 A CN201710567469 A CN 201710567469A CN 107163632 A CN107163632 A CN 107163632A
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- lamp shade
- powder
- plastic lamp
- resisting paint
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D1/00—Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances
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- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Paints Or Removers (AREA)
Abstract
The invention discloses a kind of plastic lamp shade heat-resisting paint, including following parts by weight of component：59 parts of 20 25 parts of talcum powder, 30 70 parts of lithopone, 20 25 parts of mica powder, 2 10 parts of Ludox, 38 parts of titanium dioxide, 10 25 parts of curing agent, 10 15 parts of compounded mix and auxiliary agent.Wherein mica powder is the mica powder after special process is purified, it is possible to increase the insulation of coating and heat-proof quality.The plastic lamp shade of the present invention is good with heat-resisting paint adhesive force, with good heat resistance, can effectively prevent the cracking of coating, and coating is convenient, can effectively drop adverse effect of the LED high temperature to plastic lamp shade.
Description
Technical field
The present invention relates to paint field, and in particular to a kind of plastic lamp shade heat-resisting paint.
Background technology
LED is to illuminate one of revolutionary invention of technology field, and it has the advantages that low energy consumption, service life are long.
LED lamp cover is one kind of LED accessories, is softer preferably by light-ray condensing, to make light more concentrate, it is to avoid LED lamplight is straight
Penetrate dazzling.Its temperature can be raised slowly LED after a period of operation, and this requires LED lamp cover to have heat resistance, otherwise
The light heat that LED is produced will make lampshade softening transform, influence attractive in appearance.The lampshade of existing LED has PC lampshades, glass
Lampshade, plastic lamp shade, LED lamp shade, paper lamp-shade etc., wherein most commonly seen with plastic lamp shade.Typically prevent LED lamp cover from being led by high temperature
The measure for causing softening is that a coating is coated with lampshade inwall.But the coating of lampshade inwall of the prior art is often resistance to
Hot property is not good enough, and service life is not long, and coating sawing sheet occurs in time length coating, and lampshade is oxidized, the problems such as deformation.
The content of the invention
In view of the defect of above-mentioned prior art, the technical problem to be solved in the present invention is to provide a kind of plastic lamp shade with heat-resisting
Coating, to solve above-mentioned problem of the prior art.
In view of the above-mentioned technical problem to be solved, the present invention provides following technical solution, a kind of plastic lamp shade is used
Heat-resisting paint, including following parts by weight of component：20-25 parts of talcum powder, 30-70 parts of lithopone, 20-25 parts of mica powder, Ludox
5-9 parts of 2-10 parts, 3-8 parts of titanium dioxide, 10-25 parts of curing agent, 10-15 parts of compounded mix and auxiliary agent.
It is preferred that, the talcum powder is laurate surface modified talc powder, and its average grain diameter is 1-100 nanometers.
It is preferred that, the lithopone is that surface of silicone resin is modified lithopone, and its average grain diameter is 1-100 nanometers.
It is preferred that, the mica powder is the mica powder after purification, and the method for purification concrete operations of mica powder are as follows：
(1) it is first that organic solvent is standby with 13X types molecular sieve dehydration 5-7 days；
(2) mica powder, organic solvent and catalyst are added in 320mm three-necked flask and 40-50min is stirred at room temperature
After stand 1-3h, then try with recirculated water the Suction filtration device of the composition of vavuum pump, Buchner funnel and conical flask and filter off the impurity separated out；
(3) mica powder for removing impurity is added in three-necked flask, begins to warm up and be slowly ramped to 70-75 DEG C, made
Organic solvent is evaporated and collected, and is warming up to 85-90 DEG C, suction filtration 1-2h, you can the mica powder after being purified.
It is preferred that, the organic solvent is styrene or perchloroethylene；The catalyst is amino resin crosslinking agent.
It is preferred that, the curing agent is dicyandiamide.
It is preferred that, component that the compounded mix is included and account for the percentage by weight of coating and be：Silicon powder 5-8%, glass
Powder 10-15%.
It is preferred that, component that the auxiliary agent is included and account for the percentage by weight of coating and be：It is defoamer 0.4-0.8%, scattered
Agent 0.6-1.2%.
It is preferred that, the defoamer is dimethyl silicone polymer, and the dispersant is stearmide.
Compared with prior art, the beneficial effects of the invention are as follows：
(1) plastic lamp shade of the invention is good with heat-resisting paint adhesive force, with good heat resistance, can effectively prevent from applying
The cracking of material, and coating is convenient, can effectively drop adverse effect of the LED high temperature to plastic lamp shade；
(2) refractive index of the talcum powder selected by coating of the invention is 1.59, and the refractive index of lithopone is 1.84, this hair
The bright selection by talcum powder and lithopone particle diameter, and talcum powder and lithopone refractive index cooperation, painting can be significantly improved
The reflecting rate and covering performance of layer, increase the using effect of plastic lamp shade；
(3) mica powder in the raw material that coating of the invention is used is the mica powder after being purified using special process, is to apply
Material has preferably insulation and heat-proof quality.
Embodiment
The embodiment to the present invention is described in further detail below, but the invention is not limited in these realities
Mode is applied, any improvement or replacement on the present embodiment essence spirit still falls within the claims in the present invention claimed
Scope.
Embodiment 1
A kind of plastic lamp shade heat-resisting paint, including following parts by weight of component：20 parts of talcum powder, 30 parts of lithopone, mica
5 parts of 20 parts of powder, 2 parts of Ludox, 3 parts of titanium dioxide, 10 parts of curing agent, 10 parts of compounded mix and auxiliary agent.
Wherein talcum powder is laurate surface modified talc powder, and its average grain diameter is 1 nanometer.
Wherein lithopone is that surface of silicone resin is modified lithopone, and its average grain diameter is 1 nanometer.
Wherein curing agent is dicyandiamide.
Component that wherein compounded mix is included and account for the percentage by weight of coating and be：Silicon powder 5%, glass dust 10%.
Component that wherein auxiliary agent is included and account for the percentage by weight of coating and be：Defoamer 0.4%, dispersant 0.6%；It is described
Defoamer is dimethyl silicone polymer, and dispersant is stearmide.
Wherein mica powder is the mica powder after purification, and the method for purification concrete operations of mica powder are as follows：
(1) it is first that organic solvent styrene is standby with 13X types molecular sieve dehydration 6 days；
(2) mica powder, organic solvent and catalyst amino resin crosslinking agent are added to room in 320mm three-necked flask
2h is stood after temperature stirring 35min, then analysis is filtered off with the Suction filtration device of the composition of recirculated water examination vavuum pump, Buchner funnel and conical flask
The impurity gone out；
(3) mica powder for removing impurity is added in three-necked flask, begins to warm up and be slowly ramped to 70 DEG C, made organic
Solvent is evaporated and collected, and is warming up to 80 DEG C, suction filtration 2h, you can the mica powder after being purified.
Embodiment 2
A kind of plastic lamp shade heat-resisting paint, including following parts by weight of component：25 parts of talcum powder, 70 parts of lithopone, mica
9 parts of 25 parts of powder, 10 parts of Ludox, 8 parts of titanium dioxide, 25 parts of curing agent, 15 parts of compounded mix and auxiliary agent.
Wherein talcum powder is laurate surface modified talc powder, and its average grain diameter is 100 nanometers.
Wherein lithopone is that surface of silicone resin is modified lithopone, and its average grain diameter is 100 nanometers.
Wherein curing agent is dicyandiamide.
Component that wherein compounded mix is included and account for the percentage by weight of coating and be：Silicon powder 8%, glass dust 15%.
Component that wherein auxiliary agent is included and account for the percentage by weight of coating and be：Defoamer 0.8%, dispersant 1.2%；It is described
Defoamer is dimethyl silicone polymer, and dispersant is stearmide.
Wherein mica powder is the mica powder after purification, and the method for purification concrete operations of mica powder are as follows：
(1) it is first that organic solvent perchloroethylene is standby with 13X types molecular sieve dehydration 8 days；
(2) mica powder, organic solvent and catalyst amino resin crosslinking agent are added to room in 320mm three-necked flask
4h is stood after temperature stirring 50min, then analysis is filtered off with the Suction filtration device of the composition of recirculated water examination vavuum pump, Buchner funnel and conical flask
The impurity gone out；
(3) mica powder for removing impurity is added in three-necked flask, begins to warm up and be slowly ramped to 75 DEG C, made organic
Solvent is evaporated and collected, and is warming up to 90 DEG C, suction filtration 3h, you can the mica powder after being purified.
Embodiment 3
A kind of plastic lamp shade heat-resisting paint, including following parts by weight of component：22 parts of talcum powder, 50 parts of lithopone, mica
6 parts of 23 parts of powder, 6 parts of Ludox, 5 parts of titanium dioxide, 20 parts of curing agent, 13 parts of compounded mix and auxiliary agent.
Wherein talcum powder is laurate surface modified talc powder, and its average grain diameter is 60 nanometers.
Wherein lithopone is that surface of silicone resin is modified lithopone, and its average grain diameter is 60 nanometers.
Wherein curing agent is dicyandiamide.
Component that wherein compounded mix is included and account for the percentage by weight of coating and be：Silicon powder 6%, glass dust 13%.
Component that wherein auxiliary agent is included and account for the percentage by weight of coating and be：Defoamer 0.6%, dispersant 0.9%；It is described
Defoamer is dimethyl silicone polymer, and dispersant is stearmide.
Wherein mica powder is the mica powder after purification, and the method for purification concrete operations of mica powder are as follows：
(1) it is first that organic solvent styrene is standby with 13X types molecular sieve dehydration 7 days；
(2) mica powder, organic solvent and catalyst amino resin crosslinking agent are added to room in 320mm three-necked flask
3h is stood after temperature stirring 40min, then analysis is filtered off with the Suction filtration device of the composition of recirculated water examination vavuum pump, Buchner funnel and conical flask
The impurity gone out；
(3) mica powder for removing impurity is added in three-necked flask, begins to warm up and be slowly ramped to 72 DEG C, made organic
Solvent is evaporated and collected, and is warming up to 85 DEG C, suction filtration 2h, you can the mica powder after being purified.
Embodiment 4
A kind of plastic lamp shade heat-resisting paint, including following parts by weight of component：24 parts of talcum powder, 50 parts of lithopone, mica
8 parts of 22 parts of powder, 8 parts of Ludox, 7 parts of titanium dioxide, 22 parts of curing agent, 14 parts of compounded mix and auxiliary agent.
Wherein talcum powder is laurate surface modified talc powder, and its average grain diameter is 85 nanometers.
Wherein lithopone is that surface of silicone resin is modified lithopone, and its average grain diameter is 85 nanometers.
Wherein curing agent is dicyandiamide.
Component that wherein compounded mix is included and account for the percentage by weight of coating and be：Silicon powder 7%, glass dust 14%.
Component that wherein auxiliary agent is included and account for the percentage by weight of coating and be：Defoamer 0.7%, dispersant 1.0%；It is described
Defoamer is dimethyl silicone polymer, and dispersant is stearmide.
Wherein mica powder is the mica powder after purification, and the method for purification concrete operations of mica powder are as follows：
(1) it is first that organic solvent perchloroethylene is standby with 13X types molecular sieve dehydration 7 days；
(2) mica powder, organic solvent and catalyst amino resin crosslinking agent are added to room in 320mm three-necked flask
3h is stood after temperature stirring 45min, then analysis is filtered off with the Suction filtration device of the composition of recirculated water examination vavuum pump, Buchner funnel and conical flask
The impurity gone out；
(3) mica powder for removing impurity is added in three-necked flask, begins to warm up and be slowly ramped to 74 DEG C, made organic
Solvent is evaporated and collected, and is warming up to 87 DEG C, suction filtration 3h, you can the mica powder after being purified.
Embodiment 5
A kind of plastic lamp shade heat-resisting paint, including following parts by weight of component：23 parts of talcum powder, 65 parts of lithopone, mica
6 parts of 23 parts of powder, 8 parts of Ludox, 6 parts of titanium dioxide, 23 parts of curing agent, 11 parts of compounded mix and auxiliary agent.
Wherein talcum powder is laurate surface modified talc powder, and its average grain diameter is 55 nanometers.
Wherein lithopone is that surface of silicone resin is modified lithopone, and its average grain diameter is 55 nanometers.
Wherein curing agent is dicyandiamide.
Component that wherein compounded mix is included and account for the percentage by weight of coating and be：Silicon powder 6%, glass dust 11%.
Component that wherein auxiliary agent is included and account for the percentage by weight of coating and be：Defoamer 0.5%, dispersant 0.7%；It is described
Defoamer is dimethyl silicone polymer, and dispersant is stearmide.
Wherein mica powder is the mica powder after purification, and the method for purification concrete operations of mica powder are as follows：
(1) it is first that organic solvent styrene is standby with 13X types molecular sieve dehydration 8 days；
(2) mica powder, organic solvent and catalyst amino resin crosslinking agent are added to room in 320mm three-necked flask
2h is stood after temperature stirring 39min, then analysis is filtered off with the Suction filtration device of the composition of recirculated water examination vavuum pump, Buchner funnel and conical flask
The impurity gone out；
(3) mica powder for removing impurity is added in three-necked flask, begins to warm up and be slowly ramped to 72 DEG C, made organic
Solvent is evaporated and collected, and is warming up to 83 DEG C, suction filtration 2h, you can the mica powder after being purified.
Performance detection is carried out with heat-resisting paint to the plastic lamp shade described in above-described embodiment 1- embodiments 5, testing result is such as
Under：
There are above table data to understand, the heat resisting temperature of plastic lamp shade heat-resisting paint of the invention up to more than 213 DEG C,
85-110 degrees Celsius of in the market LED chip temperature is exceeded well over, can be good at protecting the normal of plastic lamp shade to use, and this hair
Bright plastic lamp shade heat-resisting paint has good adhesive force, is prevented effectively from coating cracking, and service life is long.
The better embodiment of embodiment described above, the simply present invention, not limits the scope of the present invention, therefore
The equivalent change or modification that all construction, feature and principles according to described in scope of the present invention patent are done, all should include this hair
In bright patent claim.
Claims (9)
1. a kind of plastic lamp shade heat-resisting paint, it is characterised in that including following parts by weight of component：20-25 parts of talcum powder, vertical moral
30-70 parts of powder, 20-25 parts of mica powder, 2-10 parts of Ludox, 3-8 parts of titanium dioxide, 10-25 parts of curing agent, compounded mix 10-
15 parts and 5-9 parts of auxiliary agent.
2. plastic lamp shade heat-resisting paint according to claim 1, it is characterised in that：The talcum powder is bay acid surfaces
Modified talc powder, its average grain diameter is 1-100 nanometers.
3. plastic lamp shade heat-resisting paint according to claim 1, it is characterised in that：The lithopone is organic siliconresin
Surface is modified lithopone, and its average grain diameter is 1-100 nanometers.
4. plastic lamp shade heat-resisting paint according to claim 1, it is characterised in that：The mica powder is the cloud after purification
Female powder, the method for purification concrete operations of mica powder are as follows：
（1）It is first that organic solvent is standby with 13X types molecular sieve dehydration 6-8 days；
（2）Mica powder, organic solvent and catalyst are added in 320mm three-necked flask be stirred at room temperature it is quiet after 35-50min
2-4h is put, then the impurity separated out is filtered off with the Suction filtration device of the composition of recirculated water examination vavuum pump, Buchner funnel and conical flask；
（3）The mica powder for removing impurity is added in three-necked flask, begins to warm up and is slowly ramped to 70-75 DEG C, is made organic
Solvent is evaporated and collected, and is warming up to 80-90 DEG C, suction filtration 2-3h, you can the mica powder after being purified.
5. plastic lamp shade heat-resisting paint according to claim 4, it is characterised in that：The organic solvent be styrene or
Perchloroethylene；The catalyst is amino resin crosslinking agent.
6. plastic lamp shade heat-resisting paint according to claim 1, it is characterised in that：The curing agent is dicyandiamide.
7. plastic lamp shade heat-resisting paint according to claim 1, it is characterised in that：The component that the compounded mix is included
And account for the percentage by weight of coating and be：Silicon powder 5-8%, glass dust 10-15%.
8. plastic lamp shade heat-resisting paint according to claim 1, it is characterised in that：Component and account for that the auxiliary agent is included
The percentage by weight of coating is：Defoamer 0.4-0.8%, dispersant 0.6-1.2%.
9. plastic lamp shade heat-resisting paint according to claim 8, it is characterised in that：The defoamer is poly dimethyl silicon
Oxygen alkane, the dispersant is stearmide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710567469.7A CN107163632A (en) | 2017-07-12 | 2017-07-12 | A kind of plastic lamp shade heat-resisting paint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710567469.7A CN107163632A (en) | 2017-07-12 | 2017-07-12 | A kind of plastic lamp shade heat-resisting paint |
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| CN107163632A true CN107163632A (en) | 2017-09-15 |
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| CN201710567469.7A Withdrawn CN107163632A (en) | 2017-07-12 | 2017-07-12 | A kind of plastic lamp shade heat-resisting paint |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108624169A (en) * | 2018-05-23 | 2018-10-09 | 张建平 | Anti- infrared heat-insulated water paint nanometer titanium dioxide composite material and preparation process |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1709988A (en) * | 2005-07-05 | 2005-12-21 | 北京国科京彪新材料科技有限公司 | High-temperature thermal-insulation anticorrosive nano coating and its preparing method |
| CN102464935A (en) * | 2010-11-19 | 2012-05-23 | 比亚迪股份有限公司 | Glass lampshade surface coating, preparation method thereof and glass lampshade |
| CN104629559A (en) * | 2015-03-12 | 2015-05-20 | 江苏欣安新材料技术有限公司 | High temperature resistant coating and preparation method thereof |
| CN104804489A (en) * | 2015-04-23 | 2015-07-29 | 苏州劲元油压机械有限公司 | Rub resistant paint for hydraulic cylinder and preparation method of rub resistant paint |
| CN105419628A (en) * | 2015-11-24 | 2016-03-23 | 太仓市金锚新材料科技有限公司 | High-temperature-resistant paint based on tetraethyl orthosilicate and preparation method thereof |
| CN106888557A (en) * | 2017-03-24 | 2017-06-23 | 合肥羿振电力设备有限公司 | A kind of preparation method of the electronic circuit board with waterproof nano coating |
-
2017
- 2017-07-12 CN CN201710567469.7A patent/CN107163632A/en not_active Withdrawn
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1709988A (en) * | 2005-07-05 | 2005-12-21 | 北京国科京彪新材料科技有限公司 | High-temperature thermal-insulation anticorrosive nano coating and its preparing method |
| CN102464935A (en) * | 2010-11-19 | 2012-05-23 | 比亚迪股份有限公司 | Glass lampshade surface coating, preparation method thereof and glass lampshade |
| CN104629559A (en) * | 2015-03-12 | 2015-05-20 | 江苏欣安新材料技术有限公司 | High temperature resistant coating and preparation method thereof |
| CN104804489A (en) * | 2015-04-23 | 2015-07-29 | 苏州劲元油压机械有限公司 | Rub resistant paint for hydraulic cylinder and preparation method of rub resistant paint |
| CN105419628A (en) * | 2015-11-24 | 2016-03-23 | 太仓市金锚新材料科技有限公司 | High-temperature-resistant paint based on tetraethyl orthosilicate and preparation method thereof |
| CN106888557A (en) * | 2017-03-24 | 2017-06-23 | 合肥羿振电力设备有限公司 | A kind of preparation method of the electronic circuit board with waterproof nano coating |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108624169A (en) * | 2018-05-23 | 2018-10-09 | 张建平 | Anti- infrared heat-insulated water paint nanometer titanium dioxide composite material and preparation process |
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Application publication date: 20170915 |