CN102786830A - Hydroxyalkyl amide curing agent composition and application thereof in powdery paints - Google Patents
Hydroxyalkyl amide curing agent composition and application thereof in powdery paints Download PDFInfo
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- CN102786830A CN102786830A CN2012102445123A CN201210244512A CN102786830A CN 102786830 A CN102786830 A CN 102786830A CN 2012102445123 A CN2012102445123 A CN 2012102445123A CN 201210244512 A CN201210244512 A CN 201210244512A CN 102786830 A CN102786830 A CN 102786830A
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- hydroxyalkyl amide
- curing agent
- agent composition
- amide curing
- unit price
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Abstract
The invention discloses a hydroxyalkyl amide curing agent composition, comprising 70-95wt% of hydroxyalkyl amide curing agent, 2-15wt% of anti-yellowing agent, and 3-15wt% of degassing agent. The hydroxyalkyl amide curing agent composition is prepared by mixing and fusing the three ingredients in proportion or carrying out melt extrusion on the three ingredients. According to the invention, by directly applying the composition in the formula of powdery paints, compared with respectively adding the three ingredients in the formula, better anti-yellowing and anti-pinhole performance of the film can be achieved.
Description
Technical field
The present invention relates to chemical field, a kind of specifically hydroxyalkyl amide curing agent composition and the purposes in powder coating thereof.
Background technology
Along with people's to health environment-friendly require increasingly high; Though traditional carboxy(l)polyester/TGIC (isocyanuric acid three-glycidyl ester) system homogeneous, stable, adjustable; Have good heat-resisting and weather resistance and can satisfy user's requirement basically, but its strong impulse property smell and potential carinogenicity make withdraw from the market become inevitable.
The hydroxyalkyl amide compound is the low toxic and environment-friendly type compound of generally acknowledging; Be widely used in daily use chemicals, tensio-active agent and paint field, particularly art of powder coatings are as the solidifying agent of polyester coating at present; It is strong to have reactive behavior, is applicable to that low-temperature curing condition, storage characteristics are good.At present, the hydroxyalkyl amide system replaces the topmost integral part that carboxy(l)polyester/TGIC becomes outdoor powder coating systems gradually.And along with of the continuous development of hydroxyalkyl amide system auxiliary products with technology, it in the shared ratio in outdoor powder coating market, the whole world also in increasing fast.
But; The solidifying agent of polyester powder coating the most; Existing hydroxyalkyl amide product can discharge micromolecular compound on the market in solidification process, therefore when dope layer is blocked up, inevitably pin hole can occur, and this series products thermotolerance, yellowing resistance are relatively poor; Cause ornamental poor under some occasion like this, big limitations the hydroxyalkyl amide solidifying agent use and marketing.Adding air release agent and anti-xanthochromia agent become the most effectively one of result of the above problems in hydroxyalkyl amide solidifying agent product.
At present technology mostly is at the prescription pre-mixing stage air release agent and anti-xanthochromia agent to be joined respectively in the prescription, mixes then, melt extrudes, crushing screening makes the coating powder.Disperse difficulty big, disperse evenly inadequately, reduced the product result of use.Or pin hole and xanthochromia can not be simultaneously be improved significantly, make result of use reduce.
Summary of the invention
Goal of the invention: for a kind of hydroxyalkyl amide curing agent composition is provided, this invention can improve pin hole and xanthochromic phenomenon simultaneously, makes anti-xanthochromia and degasification effect maximize.
Another object of the present invention is to provide a kind of environmental protection low toxicity, can in solidification process, reduce the pin hole of filming, improve the used for powder coating hydroxyalkyl amide curing agent composition of the anti-yellowing property of filming.
In order to reach as above purpose, the present invention takes following technical scheme: with following three kinds of components, be prepared from according to following part by weight melting mixing or the method that melt extrudes: hydroxyalkyl amide solidifying agent, 70-95%; Anti-xanthochromia agent, 2-15%; Air release agent, 3-15%.
The further optimal technical scheme of the present invention is that said hydroxyalkyl amide solidifying agent is a solid form, and chemical general formula is as follows:
In the formula, A representes a unit price or polyvalent organic group; R
1Represent the alkyl of a H or a C1-C5, R
2Represent a H or a C1-C5 alkyl or
N is the integer of 1-10, and n ' is 0 or 1.
The further optimal technical scheme of the present invention is that A can be selected from: the unit price or polyvalent alkyl or unit price or the polyvalent phenyl that contain 1-12 carbon atom.
The further optimal technical scheme of the present invention is that A can be selected from: the unit price of the described 1-12 of a containing carbon atom or polyvalent alkyl are any one in methyl, ethyl, propyl group, butyl, amyl group, hexyl, heptyl, octyl group, nonyl, decyl, unit price or the polyvalent naphthenic base.
The further optimal technical scheme of the present invention is that described anti-xanthochromia agent is a solid form, comprises at least a oxidation inhibitor and at least a UV light absorber.
The further optimal technical scheme of the present invention is that said oxidation inhibitor is any one perhaps several kinds in phosphorous acid esters, Hinered phenols, phenol/phosphite mixture, the lactone/phosphite mixture material.
The further optimal technical scheme of the present invention is that described UV light absorber is one or more in triazines, benzotriazole category, the hindered amines UV light absorber.
The further optimal technical scheme of the present invention is that described air release agent is a solid form, is selected from Alpha-hydroxy ketone, the crystallinity wax class air release agent one or more.
The further optimal technical scheme of the present invention is that wherein the part by weight of three kinds of materials is: hydroxyalkyl amide solidifying agent, 80%; Anti-xanthochromia agent, 10%; Air release agent, 10%.
Like the above purposes of described a kind of hydroxyalkyl amide curing agent composition in powder coating arbitrarily.
The present invention is with even in advance melting mixing of degasifier, anti-xanthochromia agent and hydroxyalkyl amide solidifying agent or mixing extruding; Degasifier and anti-xanthochromia agent are dispersed in the curing agent composition; Then compsn directly is used for the powder coating prescription; Can improve pin hole and xanthochromic phenomenon simultaneously, make anti-xanthochromia and degasification effect maximize.And the environmental protection low toxicity can further reduce the pin hole of filming in solidification process, improves the anti-yellowing property of filming.
Embodiment
Describe in the face of embodiments of the invention down, embodiment is not construed as limiting the invention:
Typical hydroxyalkyl amide solidifying agent can be selected from Primid XL552, the QM1260 of EMS, the Vestagon HA320 of Degussa, EP-HA376 etc.
Described resisting etiolation agent normal temperature for solid form, comprises at least a oxidation inhibitor and at least a UV light absorber down.
Described oxidation inhibitor normal temperature is solid form down; Comprise: phosphorous acid esters;
168 that produce of Ciba ltd for example,
126 etc.; Hinered phenols;
1010 that produce of Ciba ltd for example;
1076,
245 etc.; Phenol/phosphite mixture,
B 225 that produces like Ciba ltd etc.; Lactone/phosphite mixture,
XP 60 that produces like Ciba ltd etc.;
Described UV light absorber normal temperature is solid form down; Comprise: triazines, for example
405 that produce of Ciba ltd etc.; Benzotriazole category, for example
900 that produce of Ultraviolet Absorber UV-P, Ciba ltd etc.; Hindered amines,
144 that produces like Ciba ltd etc.; And the mixture of above-mentioned three types of products.
Said air release agent is the commercially available froth breaking degasification series products of solid form, comprises the Alpha-hydroxy ketone, produces like bitter almond oil camphor, Estron company
A-2,
A-4,
A-6; Crystallinity wax class is like the POWDERADD of Lubrizol company production
TM9062, LANCO
TMPP1362D, LANCO
TMFlow P30, and last two state product analogous products, or the like.
The melting mixing machine that the melting mixing extrusion molding is adopted can be twin screw or single screw mixing forcing machine.Described melting mixing temperature is that component A fusing point is up and down between 10 ℃.
Adopt the SLJ-30A testing laboratory of east, Yantai brightness powder equipment ltd to use twin screw extruder, press said prescription of table 1 and condition, make the hydroxyalkyl amide curing agent composition of routine 1-example 5 respectively.
Embodiment
Used batching is following among the embodiment
Primid QM1260, the EMS-CHEMIE Company products
Vestagon HA320, Evonic Degussa Company products
B 225, the Basf Company products
Bitter almond oil camphor, the South Sea, Ningbo chemistry ltd product
POWDERADD
TM9062, LANCO
TMFlow P 30, Lubrizol company produces
SJ5122, the Primid of Anhui Shenjian New Material Co., Ltd. polyester, acid number 30-34mgKOH/g
SJ5101, the Primid of Anhui Shenjian New Material Co., Ltd. polyester, acid number 25-27mgKOH/g
PV88; Universal BLP, Germany's
-Chemie GmbH product
Table 1
The degasification performance test:
By the listed formulated powdered of table 2 coating: each listed component of filling a prescription is packed in the plastics bag together; Shake be mixed even, then under 105-115 ℃ with twin screw extruder mixingly extrude, compressing tablet, cooling after coffee mill pulverize; Cross 160 mesh sieves, the powder coating of respectively being filled a prescription.Above-mentioned used for powder coating corona spray gun electrostatic spraying (on 0.5 * 70 * 100mm), is toasted 10min down at 200 ℃ then, solidified acquisition 70,80 respectively at heat-stable stainless steel plate; 90,100,110; 120,130,140; 150 μ m film, and estimate the pin hole situation of filming, and confirm the foaming minimum film thickness.
The gained film performance is as shown in table 2
Table 2
Yellowing resistance can be tested:
With all prescriptions in the table 2, solidify to form filming of 75 μ m thickness by all spraying with quadrat method, 200 ℃ of baking 1h in baking oven measure the b value of filming with the smart CC-6807 type of BYK color colour-difference meter, and the result is as shown in table 3.
Table 3
Can find through above experimental data contrast:
By the inventive method hydroxyalkyl amide, anti-xanthochromia agent and three kinds of compositions of air release agent are processed in advance and to be used further to behind the compsn (see prescription 1-5) in the powder coating prescription; Join respectively with mentioned component and (to see prescription 1C-5C) in the powder coating prescription and compare, can obtain better anti-pin hole effect (minimum film thickness that promptly bubbles is bigger) and better anti-xanthochromia effect (being that xanthochromia index b value is littler) identical component, equal consumption.All can reach application requiring and not have significant difference at aspect of performances such as levelling, anti-impacts after the powder coating film forming of other two kinds of method gained.
More than show and described ultimate principle of the present invention, principal character and advantage of the present invention.Those skilled in the art should understand the present invention and not be restricted to the described embodiments; That describes in the foregoing description and the specification sheets just explains principle of the present invention; Under the prerequisite that does not break away from spirit and scope of the invention; The present invention also has various changes and modifications, and these variations and improvement all fall in the scope that requires protection.
Claims (10)
1. a hydroxyalkyl amide curing agent composition is characterized in that, with following three kinds of components, is prepared from according to following part by weight melting mixing or the method that melt extrudes: hydroxyalkyl amide solidifying agent, 70-95%; Anti-xanthochromia agent, 2-15%; Air release agent, 3-15%.
2. according to the said a kind of hydroxyalkyl amide curing agent composition of claim 1, it is characterized in that said hydroxyalkyl amide solidifying agent is a solid form, chemical general formula is as follows:
In the formula, A representes a unit price or polyvalent organic group; R
1Represent the alkyl of a H or a C1-C5, R
2Represent a H or a C1-C5 alkyl or
N is the integer of 1-10, and n ' is 0 or 1.
3. a kind of hydroxyalkyl amide curing agent composition as claimed in claim 2 is characterized in that A can be selected from: the unit price or polyvalent alkyl or unit price or the polyvalent phenyl that contain 1-12 carbon atom.
4. a kind of hydroxyalkyl amide curing agent composition as claimed in claim 3; It is characterized in that A can be selected from: the unit price of the described 1-12 of a containing carbon atom or polyvalent alkyl are any one in methyl, ethyl, propyl group, butyl, amyl group, hexyl, heptyl, octyl group, nonyl, decyl, unit price or the polyvalent naphthenic base.
5. a kind of according to claim 1 hydroxyalkyl amide curing agent composition is characterized in that, described anti-xanthochromia agent is a solid form, comprises at least a oxidation inhibitor and at least a UV light absorber.
6. like the said a kind of hydroxyalkyl amide curing agent composition of claim 5, it is characterized in that said oxidation inhibitor is any one perhaps several kinds in phosphorous acid esters, Hinered phenols, phenol/phosphite mixture, the lactone/phosphite mixture material.
7. like the said a kind of hydroxyalkyl amide curing agent composition of claim 5, it is characterized in that described UV light absorber is one or more in triazines, benzotriazole category, the hindered amines UV light absorber.
8. according to the said a kind of hydroxyalkyl amide curing agent composition of claim 1, it is characterized in that described air release agent is a solid form, be selected from Alpha-hydroxy ketone, the crystallinity wax class air release agent one or more.
9. a kind of hydroxyalkyl amide curing agent composition as claimed in claim 1 is characterized in that wherein the part by weight of three kinds of materials is: hydroxyalkyl amide solidifying agent, 80%; Anti-xanthochromia agent, 10%; Air release agent, 10%.
10. like any purposes of described a kind of hydroxyalkyl amide curing agent composition in powder coating of claim 1-9.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210244512.3A CN102786830B (en) | 2012-07-16 | 2012-07-16 | Hydroxyalkyl amide curing agent composition and application thereof in powdery paints |
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|---|---|---|---|
| CN201210244512.3A CN102786830B (en) | 2012-07-16 | 2012-07-16 | Hydroxyalkyl amide curing agent composition and application thereof in powdery paints |
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| CN102786830A true CN102786830A (en) | 2012-11-21 |
| CN102786830B CN102786830B (en) | 2014-11-26 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103122206A (en) * | 2013-03-12 | 2013-05-29 | 六安市捷通达化工有限责任公司 | Environment-friendly super weather-proof powder paint composition and preparation method |
| CN103319935A (en) * | 2013-06-26 | 2013-09-25 | 关锦池 | Hydroxyalkyl amide curing agent composition used for powder coating |
| CN103641737A (en) * | 2013-11-29 | 2014-03-19 | 六安市捷通达化工有限责任公司 | Preparation method of carboxylic acid modified hydroxyalkyl amide curing agent |
| CN104817869A (en) * | 2015-03-30 | 2015-08-05 | 六安市捷通达化工有限责任公司 | Hydroxyalkylamide curing agent composition for powder coating materials, and preparation method thereof |
Citations (3)
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| CN1404517A (en) * | 2000-12-21 | 2003-03-19 | Ucb公司 | Powdered thermosetting composition for coatings |
| CN1766019A (en) * | 2005-09-22 | 2006-05-03 | 长江水利委员会长江科学院 | Nano composite aqueous epoxide resin coating material and preparation method |
| CN102010654A (en) * | 2010-11-16 | 2011-04-13 | 北方涂料工业研究设计院 | Method for preparing environmental-friendly high-performance polyurethane waterproof paint |
-
2012
- 2012-07-16 CN CN201210244512.3A patent/CN102786830B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1404517A (en) * | 2000-12-21 | 2003-03-19 | Ucb公司 | Powdered thermosetting composition for coatings |
| CN1766019A (en) * | 2005-09-22 | 2006-05-03 | 长江水利委员会长江科学院 | Nano composite aqueous epoxide resin coating material and preparation method |
| CN102010654A (en) * | 2010-11-16 | 2011-04-13 | 北方涂料工业研究设计院 | Method for preparing environmental-friendly high-performance polyurethane waterproof paint |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103122206A (en) * | 2013-03-12 | 2013-05-29 | 六安市捷通达化工有限责任公司 | Environment-friendly super weather-proof powder paint composition and preparation method |
| CN103319935A (en) * | 2013-06-26 | 2013-09-25 | 关锦池 | Hydroxyalkyl amide curing agent composition used for powder coating |
| CN103641737A (en) * | 2013-11-29 | 2014-03-19 | 六安市捷通达化工有限责任公司 | Preparation method of carboxylic acid modified hydroxyalkyl amide curing agent |
| CN103641737B (en) * | 2013-11-29 | 2016-04-20 | 六安市捷通达化工有限责任公司 | A kind of preparation method of carboxyl acid modified hydroxy alkyl amide curing agents |
| CN104817869A (en) * | 2015-03-30 | 2015-08-05 | 六安市捷通达化工有限责任公司 | Hydroxyalkylamide curing agent composition for powder coating materials, and preparation method thereof |
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| CN102786830B (en) | 2014-11-26 |
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