CN109705701A - A kind of preparation method of fluorescent powder coating and preparation method thereof and the polyester resin and fluorescent pigment that use - Google Patents
A kind of preparation method of fluorescent powder coating and preparation method thereof and the polyester resin and fluorescent pigment that use Download PDFInfo
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- CN109705701A CN109705701A CN201811623331.5A CN201811623331A CN109705701A CN 109705701 A CN109705701 A CN 109705701A CN 201811623331 A CN201811623331 A CN 201811623331A CN 109705701 A CN109705701 A CN 109705701A
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Abstract
The present invention provides the preparation method of a kind of fluorescent powder coating and preparation method thereof and the polyester resin and fluorescent pigment that use, its raw material components and its mass fraction are as follows: polyester resin: 280-320 parts, epoxy resin: 280-320 parts, fluorescent pigment: 8-12 parts, titanium dioxide: 6-10 parts, inorganic filler: 300-350 parts, levelling agent: 8-12 parts, styrax: 2-6 parts, optical brightener: 2-6 parts.Using environment-friendly type organic fluorescent pigment, product is environmentally friendly, preparation process strict control technological parameter, fluorescent pigment structure is not destroyed, product can solidify under 160 DEG C of this lower solidification temperatures, coating fluorescence intensity after solidification is high, and surface is clear full, bright in luster, and adhesive force, impact, bending etc. are functional.
Description
Technical field
The present invention relates to technical field of coatings more particularly to a kind of fluorescent powder coating and preparation method thereof and use poly-
The preparation method of ester resin and fluorescent pigment.
Background technique
Ultraluminescence can be changed into the visible light of certain color after fluorescent material absorption visible light, total light reflection is strong
Degree is apparently higher than common coloring matter.Fluorescent pigment is mainly made of fluorescent dye and vector resin, relative to inorganic type fluorescence
Dyestuff, organic type fluorescent dye luminous efficiency is high, bright in luster, but is limited by structure, and general weatherability, temperature tolerance compare
Difference, therefore the synthesis of high performance carrier materials resin plays decisive role to the fluorescent pigment for producing function admirable.Fluorescent pigment
It can be used for various coating, such as textile printing mill base, traffic sign coating, poster paint, toy coating, bicycle baking vanish.?
Coating industry, powdery paints have the characteristics that energy-saving and environmental protection, efficient, performance is brilliant, quickly grows, fluorescent type powder in recent years
Coating has certain potential market.Fluorescent pigment is applied to powdery paints, is applied using the powder of conventional polyester resin preparation
Material usually requires higher solidification temperature, and lower temperature solidification will lead to the performances such as powdery paints impact, bending, adhesive force cannot
It meets the requirements.And fluorescent pigment heat resistance is poor, powdery paints may make its generation during higher temperature is cured
Certain color difference causes fluorescent effect bad.In addition, some fluorescent pigments contain the harmful substances such as formaldehyde, powder painting has been violated
The requirement of material in environmental protection.
Summary of the invention
To solve the above problems, it is an object of the invention to provide a kind of fluorescent powder coating and preparation method thereof and using poly-
The preparation method of ester resin and fluorescent pigment mixes polyester resin, epoxy resin, fluorescent pigment, filler, auxiliary agent etc. in proportion
It closes, is squeezed out, is crushed, being sieved is prepared into a kind of environment-friendly powder coating.Solidify under the conditions of 160 DEG C/10min, coating attachment
Power is good, and mechanical performance is excellent, and fluorescence intensity is high, bright in luster.
The present invention provides a kind of fluorescent powder coating, raw material components and its mass fraction are as follows: polyester resin: 280-320
Part, epoxy resin: 280-320 parts, fluorescent pigment: 8-12 parts, titanium dioxide: 6-10 parts, inorganic filler: 300-350 parts, levelling
Agent: 8-12 parts, styrax: 2-6 parts, optical brightener: 2-6 parts.
Further improvement lies in that: the polyester resin is carboxyl end group saturated polyester resin.
Further improvement lies in that: the fluorescent pigment is environmentally friendly organic type fluorescent pigment.
Further improvement lies in that: the epoxy resin is 663U；The inorganic filler is barium sulfate or calcium carbonate；The stream
Flat agent is GLP588；The optical brightener is 701B.
It is described the preparation method is as follows: by 1000 parts of mass fraction the present invention also provides a kind of preparation method of polyester resin
Neopentyl glycol, 310 parts of ethylene glycol, 100 parts of diethylene glycols, 50 parts of trimethylolpropanes are put into reaction kettles, are heated to 120 DEG C
Fusing opens stirring, adds 2000 parts of terephthalic acid (TPA)s, 300 parts of M-phthalic acids and 5 parts of esterification catalysts, be warming up to
248 DEG C of maintenances reaction is limpid to reactant, and sampling is cooled to 220 DEG C after testing acid value, successively put into 250 parts of adipic acids and
400 parts of trimellitic anhydrides remain limpid to reactant, and sampling vacuumizes 3h after testing acid value, finally put into 30 parts of solidifications and promote
Agent and 20 parts of antioxidant, maintaining gained sample after 20min is carboxyl end group saturated polyester resin.
Further improvement lies in that: the esterification catalyst is Mono-n-butyltin；The curing accelerator is ethyl triphen
Base phosphonium bromide；The antioxidant is irgasfos 168 or antioxidant 1010.
The present invention also provides a kind of preparation method of fluorescent pigment, it is described the preparation method is as follows: by 300 parts of ethylene glycol,
1200 parts of neopentyl glycols, 20 parts of trimethylolpropanes, 400 parts of benzoic acid successively put into reaction kettle, are heated to 120 DEG C of fusings, open
Stirring is opened, is to slowly warm up to 150 DEG C, it is anti-that 2000 parts of M-phthalic acids, 200 parts of adipic acids, 40 parts of catalyst and 40 parts are added
Oxygen agent is warming up to 248 DEG C of maintenances, and 200 parts of fluorescent dyes are added after reactant is limpid, maintains 5min, completes preparation work.
Further improvement lies in that: the catalyst is phosphoric acid or hydrochloric acid；The antioxidant is irgasfos 168 or antioxidant
1010；The fluorescent dye is rhodamine B.
The present invention also provides a kind of preparation methods of fluorescent powder coating, and steps are as follows for the preparation method: one, pressing quality
Number matches each raw material, and the raw material weighed up is sufficiently pre-mixed in mixing tank；Two, mixture is squeezed by double screw extruder
Out, parameter setting is 60-80 DEG C of temperature of the area I, 80-100 DEG C of temperature of the area II, 70-90 DEG C of temperature of the area III, screw speed 80r/
min；Three, the sheet stock of extrusion is crushed, grinding, the sieving of 200 mesh screens, last packed products.
Beneficial effects of the present invention: environment-friendly type organic fluorescent pigment is used, product is environmentally friendly, and preparation process is strictly controlled
Technological parameter processed does not destroy fluorescent pigment structure, and product can solidify under 160 DEG C of this lower solidification temperatures, after solidification
Coating fluorescence intensity it is high, surface is clear full, bright in luster, and adhesive force, impact, bending etc. are functional.
Specific embodiment
In order to deepen the understanding of the present invention, the present invention will be described in further detail with reference to the examples below, the embodiment
For explaining only the invention, it is not intended to limit the scope of the present invention..
Embodiment 1
The present embodiment provides a kind of fluorescent powder coating, raw material components and its mass parts are shown in Table 1.
Preparing for polyester resin is as follows:
By 1000 parts of neopentyl glycols of mass fraction, 310 parts of ethylene glycol, 100 parts of diethylene glycols, 50 parts of trimethylolpropane investments
In reaction kettle, 120 DEG C of fusings are heated to, stirring is opened, adds 2000 parts of terephthalic acid (TPA)s, 300 parts of M-phthalic acids and 5
Part esterification catalyst is warming up to 248 DEG C of maintenances and reacts limpid to reactant, and sampling is cooled to 220 DEG C after testing acid value, successively
250 parts of adipic acids and 400 parts of trimellitic anhydrides are put into, are warming up to 230 DEG C, remain limpid to reactant, acid value is tested in sampling
After vacuumize 3h, finally put into 30 parts of curing accelerators and 20 parts of antioxidant, maintain the gained sample acid value after 20min to be
73.2mgKOH/g, viscosity 2300mPas.
Preparing for fluorescent pigment is as follows:
300 parts of ethylene glycol, 1200 parts of neopentyl glycols, 20 parts of trimethylolpropanes, 400 parts of benzoic acid are successively put into reaction kettle,
120 DEG C of fusings are heated to, stirring is opened, is to slowly warm up to 150 DEG C, 2000 parts of M-phthalic acids, 200 parts of adipic acids, 40 are added
Part catalyst and 40 parts of antioxidant, are warming up to 248 DEG C of maintenances, and 200 parts of fluorescent dyes are added after reactant is limpid, maintain
5min。
The preparation of fluorescent powder coating:
By 295 parts of polyester resin, 300 parts of epoxy resin, 10 parts of fluorescent pigments, 6 parts of titanium dioxides, 330 parts of inorganic fillers, 10 parts of streams
Flat agent, 5 parts of styraxes, 3 parts of optical brighteners are sufficiently pre-mixed in mixing tank, are then squeezed out by extruder, and extrusion parameter is the area I
Temperature 60 C, 90 DEG C of the area II temperature, then crush sheet stock, grinding, 200 mesh by 90 DEG C, screw speed 80r/min of the area III temperature
Sieve sieving, is prepared into finished product.
Embodiment 2
The present embodiment provides a kind of fluorescent powder coating, raw material components and its mass parts are shown in Table 1.
The preparation of polyester resin, fluorescent pigment is the same as embodiment 1.
The preparation of fluorescent powder coating is with embodiment 1, the difference is that raw material components and mass parts, expulsion area temperature
(area I temperature 70 C, 100 DEG C of the area II temperature, 90 DEG C of the area III temperature).
Embodiment 3
The present embodiment provides a kind of fluorescent powder coating, raw material components and its mass parts are shown in Table 1.
The preparation of polyester resin, fluorescent pigment is the same as embodiment 1.
The preparation of fluorescent powder coating is with embodiment 1, the difference is that raw material components and mass parts, expulsion area temperature
(80 DEG C of the area I temperature, 90 DEG C of the area II temperature, 85 DEG C of the area III temperature).
Embodiment 4
The present embodiment provides a kind of fluorescent powder coating, raw material components and its mass parts are shown in Table 1.
The preparation of polyester resin, fluorescent pigment is the same as embodiment 1.
The preparation of fluorescent powder coating is with embodiment 1, the difference is that raw material components and mass parts, expulsion area temperature
(area I temperature 70 C, 85 DEG C of the area II temperature, 85 DEG C of the area III temperature).
Table 1
By powder coating electrostatic spraying obtained by Examples 1 to 4 in specimen surface, solidify under the conditions of 160 DEG C/10min, according to state
Mapping tries the correlated performances such as impact, bending, adhesive force, and comparative coatings fluorescence intensity and color.
Table 2
As can be seen from the above results, the fluorescent powder coating prepared using polyester resin and fluorescent pigment, from polyester tree
It is reduced in the preparation of rouge material and solidifies required temperature, cured coating impact, bending, attachment under the conditions of 160 DEG C/10min
The better performances such as power, plate face are clearly full；On the other hand, the fluorescent pigment of preparation is free of formaldehyde, environmentally friendly, and temperature tolerance
Can preferably it be applied in powdery paints, coating color is bright-coloured, and fluorescence intensity is high, can satisfy the neck such as toy coating, poster paint
Requirement of the domain to performance powder coating.
Claims (8)
1. a kind of fluorescent powder coating, it is characterised in that: its raw material components and its mass fraction are as follows: polyester resin: 280-320
Part, epoxy resin: 280-320 parts, fluorescent pigment: 8-12 parts, titanium dioxide: 6-10 parts, inorganic filler: 300-350 parts, levelling
Agent: 8-12 parts, styrax: 2-6 parts, optical brightener: 2-6 parts.
2. fluorescent powder coating as described in claim 1, it is characterised in that: the polyester resin is carboxyl end group saturated polyester tree
Rouge.
3. fluorescent powder coating as described in claim 1, it is characterised in that: the fluorescent pigment is environmentally friendly organic type fluorescence face
Material.
4. a kind of preparation method of polyester resin as described in claim 1, it is characterised in that: described the preparation method is as follows: will
1000 parts of neopentyl glycols of mass fraction, 310 parts of ethylene glycol, 100 parts of diethylene glycols, 50 parts of trimethylolpropanes put into reaction kettle
In, 120 DEG C of fusings are heated to, stirring is opened, add 2000 parts of terephthalic acid (TPA)s, 300 parts of M-phthalic acids and 5 parts of esterifications
Catalyst is warming up to 248 DEG C of maintenances and reacts limpid to reactant, and sampling is cooled to 220 DEG C after testing acid value, successively puts into
250 parts of adipic acids and 400 parts of trimellitic anhydrides, remain limpid to reactant, and sampling vacuumizes 3h after testing acid value, finally throws
Enter 30 parts of curing accelerators and 20 parts of antioxidant, maintaining gained sample after 20min is carboxyl end group saturated polyester resin.
5. the preparation method of polyester resin as claimed in claim 4, it is characterised in that: the esterification catalyst is monobutyl oxygen
Change tin；The curing accelerator is Ethyltriphenylphosphonium brimide；The antioxidant is irgasfos 168 or antioxidant 1010.
6. a kind of preparation method of fluorescent pigment as claimed in claim 1 or 3, it is characterised in that: it is described the preparation method is as follows:
300 parts of ethylene glycol, 1200 parts of neopentyl glycols, 20 parts of trimethylolpropanes, 400 parts of benzoic acid are successively put into reaction kettle, are heated
To 120 DEG C melt, open stirring, be to slowly warm up to 150 DEG C, be added 2000 parts of M-phthalic acids, 200 parts of adipic acids, 40 parts urge
Agent and 40 parts of antioxidant are warming up to 248 DEG C of maintenances, and 200 parts of fluorescent dyes are added after reactant is limpid, maintain 5min,
Complete preparation work.
7. the preparation method of fluorescent pigment as claimed in claim 6, it is characterised in that: the catalyst is phosphoric acid or hydrochloric acid；
The antioxidant is irgasfos 168 or antioxidant 1010；The fluorescent dye is rhodamine B.
8. a kind of preparation method of fluorescent powder coating as claimed in any one of claims 1-3, it is characterised in that: the system
Steps are as follows for Preparation Method: one, matching each raw material by mass fraction, the raw material weighed up is sufficiently pre-mixed in mixing tank；Two, will
Mixture is squeezed out by double screw extruder, and parameter setting is 60-80 DEG C of temperature of the area I, 80-100 DEG C of temperature of the area II, the area III temperature
70-90 DEG C of degree, screw speed 80r/min；Three, the sheet stock of extrusion is crushed, grinding, the sieving of 200 mesh screens, is finally packaged into
Product.
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| CN201811623331.5A CN109705701A (en) | 2018-12-28 | 2018-12-28 | A kind of preparation method of fluorescent powder coating and preparation method thereof and the polyester resin and fluorescent pigment that use |
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| CN110591519A (en) * | 2019-09-06 | 2019-12-20 | 安徽神剑新材料股份有限公司 | Mixed extinction powder coating without TMA and preparation method thereof |
| CN111978527A (en) * | 2020-09-11 | 2020-11-24 | 安徽鑫友高分子新材料科技有限公司 | High-hardness powder coating with excellent fluorescence performance, preparation method and polyester resin used in preparation method |
| CN114907752A (en) * | 2022-06-27 | 2022-08-16 | 江南载福粉末涂料（张家港）有限公司 | Preparation method of low-curing-temperature carboxyl-terminated saturated polyester resin |
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| CN111978527A (en) * | 2020-09-11 | 2020-11-24 | 安徽鑫友高分子新材料科技有限公司 | High-hardness powder coating with excellent fluorescence performance, preparation method and polyester resin used in preparation method |
| CN111978527B (en) * | 2020-09-11 | 2022-08-12 | 安徽鑫友高分子新材料科技有限公司 | High-hardness powder coating with excellent fluorescence performance, preparation method and polyester resin used in preparation method |
| CN114907752A (en) * | 2022-06-27 | 2022-08-16 | 江南载福粉末涂料（张家港）有限公司 | Preparation method of low-curing-temperature carboxyl-terminated saturated polyester resin |
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Application publication date: 20190503 |