CN104845431A - Powder coating assistant - Google Patents
Powder coating assistant Download PDFInfo
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- CN104845431A CN104845431A CN201510228288.2A CN201510228288A CN104845431A CN 104845431 A CN104845431 A CN 104845431A CN 201510228288 A CN201510228288 A CN 201510228288A CN 104845431 A CN104845431 A CN 104845431A
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- China
- Prior art keywords
- powder coating
- tetramethyl
- glycol
- coating additive
- decine
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Classifications
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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
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/03—Powdery paints
- C09D5/033—Powdery paints characterised by the additives
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/34—Silicon-containing compounds
- C08K3/36—Silica
-
- 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
- C09D187/00—Coating compositions based on unspecified macromolecular compounds, obtained otherwise than by polymerisation reactions only involving unsaturated carbon-to-carbon bonds
-
- 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
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Inorganic Chemistry (AREA)
- Paints Or Removers (AREA)
Abstract
The invention discloses a powder coating assistant, comprising at least one alkynol material. The alkynol material is treated by methods of oligomerization, combination or absorption to obtain the powder coating assistant with multiple properties. The powder coating assistant is wider in application scope, is easy to prepare, is applied to the preparation of a powder coating, and can effectively improve the comprehensive performance of the powder coating.
Description
Technical field
The invention belongs to technical field of coatings, be specifically related to a kind of powder coating additive.
Background technology
Powder coating, by specialty resins, color stuffing, solidifying agent and other auxiliary agent, mixes in certain proportion, then is prepared from by hot extrusion and the technique such as to pulverize and sieve.Compared with general coating, powder coating has diverse form, and it exists with the state of fines, owing to not using solvent, so be called powder coating.Powder coating be a kind of novel, not containing solvent, 100% solid powdery coating, have without solvent, pollution-free, save the energy and resource, reduce labor intensity and film physical strength high.
Powder coating is generally divided into two large classes: thermoplastic powder coating and thermosetting powder coating(s).
Thermoplastic powder coating is become to be grouped into stablizer etc. by thermoplastic resin, pigment, filler, softening agent.Thermoplastic powder coating comprises: polyethylene, polypropylene, polyester, polyvinyl chloride, penton, polyamide-based, cellulose-based, Polyester.Thermoplastic powder coating starts nineteen fifty to occur, it dissolves under spraying temperature, freezing film during cooling.Due to processing and spraying method simple, powder coating only needs heat fused, levelling, cooling or extraction freezing film, does not need the solidification equipment of complexity.The raw material of most use is all polymkeric substance common on market, all can meet the requirement of use properties under most condition.But it is not enough also to there is some, and such as melt temperature is high, and painted level is low, with metallic surface poor adherence etc.
Thermosetting powder coating(s) refers to using thermosetting resin as filmogen, and the solidifying agent having added crosslinking reaction forms insoluble not molten quality hard coat after heating, and temperature again this coating high also can not be softening as thermoplastic coating, and can only decompose.Be made up of thermosetting resin, solidifying agent, pigment, filler and auxiliary agent etc.Heat curable powder coating due to the resin that thermosetting powder coating(s) adopts be the prepolymer that the polymerization degree is lower, molecular weight is lower, so the levelling property of coating is better, have ornamental preferably, and low-molecular-weight prepolymer is after solidification, can form the macromole of cross-linked network, thus coating has better preservative property and mechanical property.
Auxiliary agent is the important component part in powder coating formulation, although compare with component such as resin, solidifying agent, pigment and the filler of powder coating, its amount ratio is less, only account for the some thousandths of of formula total amount to percentum, but the impact of its effect on powder coating and film performance is very important, in some cases, auxiliary agent plays conclusive effect.Although the auxiliary agent kind used in powder coating is not as many in solvent-borne type and water-borne coatings, but along with the progress of powder coating technology, the kind showed increased of auxiliary agent, range of application is also in continuous expansion, powder coating kind increases, and film quality is also significantly increased.Auxiliary agent kind conventional in powder coating has flow agent, brightening agent, air release agent (degasifier), defoamer, dispersion agent, anti-hard caking agent (fluffy powder or raising agent), promotor, powder utilization improving agent, static inhibitor, frictional electrification auxiliary agent etc.But existing powder coating additive only has single performance usually, the range of application in powder coating is narrower, is unfavorable for the over-all properties improving powder coating.
Summary of the invention
In order to solve the problem, the invention provides a kind of powder coating additive, have multiple performance, range of application is comparatively wide, effectively can improve the over-all properties of powder coating.
A kind of powder coating additive, it is characterized in that, described powder coating additive comprises at least one alkynes alcohols material.
Alkynol (comprises single alkynol and alkyne diol, and a series of derivative such as its oxyethyl group/propoxylated compounds) be that a class has the fine chemical product of extensive use at numerous areas, contain alkynyl and polar group hydroxyl and non-polar group alkyl from molecular structure alkynol, this structures shape alkynol compound has many excellent performances.Alkynes alcohols material have mitigation and the capillary effect of strong reduction, alternative st-yrax removes gas during powder coating film forming, film yellowing can't be caused, also there is strong froth breaking effect, because froth breaking principle is consistency froth breaking, therefore produce at powder coating, storage, spraying film forming time can play the effect pressing down bubble, broken bubble, froth breaking, and due to its capillary controllability, can also as flow agent, wetting agent, brightening agent etc.
As preferably, described alkynes alcohols material is for liquid under normal temperature, and the oligopolymer of the alkynol compound of boiling point below 180 DEG C.By the method for chemistry or physics by its oligomeric be solid-state oligopolymer under normal temperature state.As more preferably, described alkynes alcohols material is the trimer of 3,5-dimethyl-1-hexin-3-alcohol.
The present invention uses alkynes alcohols material as powder coating additive, comprises single alkynol and alkyne diol, and their ethoxylated/propoxylated product, and by them, independent or multiple combination use, prepares a kind of powder coating additive with multiple performance.As preferably, described alkynes alcohols material is the trimer, 2 of 3,5-dimethyl-1-hexin-3-alcohol, 4,7,9-tetramethyl--5-decine-4, the oxyethyl group product, 2 of 7-glycol, 4,7, the oxyethyl group of 9-tetramethyl--5-decine-4,7-glycol, 3,5-dimethyl-1-hexin-3-alcohol or 2,5, at least one in 8,11-tetramethyl--6-dodecyne-5,8-glycol; The alcohol of the oxyethyl group product of wherein said 2,4,7,9-tetramethyl--5-decine-4,7-glycol: EO is 6 ~ 8:3 ~ 5.
As more preferably, by percentage to the quality, described alkynes alcohols material is composed of the following components:
The oxyethyl group product 75 ~ 85% of 2,4,7,9-tetramethyl--5-decine-4,7-glycol;
The oxyethyl group 7 ~ 15% of 2,4,7,9-tetramethyl--5-decine-4,7-glycol;
3,5-dimethyl-1-hexin-3-alcohol 7 ~ 15%;
The alcohol of the oxyethyl group product of wherein said 2,4,7,9-tetramethyl--5-decine-4,7-glycol: EO is 6:4.
By rational combination matching, the powder coating additive prepared have wetting, bright, degassed, disappear the function such as bubble.
As more preferably, by percentage to the quality, described alkynes alcohols material is composed of the following components:
The oxyethyl group product 80% of 2,4,7,9-tetramethyl--5-decine-4,7-glycol;
The oxyethyl group 10% of 2,4,7,9-tetramethyl--5-decine-4,7-glycol;
3,5-dimethyl-1-hexin-3-alcohol 10%.
As preferably, described alkynes alcohols material is 2,5,8,11-tetramethyl--6-dodecyne-5,8-glycol.
The present invention is through reasonable combination proportioning, and the powder coating additive prepared has degassed, froth breaking, the multiple performance such as wetting, bright, is particularly useful for epoxy-polyester powder coating.
In order to easy to use, as preferably, described alkynol class species adsorbs is on toner, aerosil or magnesiumcarbonate, and the mass ratio of described alkynes alcohols material and described toner, aerosil or magnesiumcarbonate is 9 ~ 10:20.
As more preferably, described alkynol class species adsorbs is on toner, and described alkynes alcohols material and described toner mass ratio are 1:2.
As more preferably, described alkynol class species adsorbs is on aerosil, and the mass ratio of described alkynes alcohols material and described aerosil is 9:20.
Present invention also offers the powder coating of above-mentioned powder coating additive, the addition of described powder coating additive is thousandth to thousand/tri-of described powder coating weight.
Compared with prior art, beneficial effect of the present invention is embodied in:
The present invention by alkynes alcohols material by oligomeric, combination or the method such as absorption, prepare the powder coating additive possessing multiple performance, its range of application is comparatively wide, and its preparation is simple, and in the middle of the preparation applying to powder coating, effectively can improve the over-all properties of powder coating.
Embodiment
Embodiment 1
Select 3, the trimer of 5-dimethyl-1-hexin-3-alcohol is as powder coating additive, added in powder coating preparation process among powder coating, addition is the thousandth of powder coating weight, this powder coating additive plays the effects such as degassed, wetting wherein, mainly plays froth breaking effect.The effect of coatings additive(s) in embodiment 1 in epoxy-polyester powder coating, in table 1.
The effect of table 1 coatings additive(s) in epoxy-polyester powder coating
| Addition | Deviating from property of bubble 1. | Defoaming 2. | Wettability |
| Do not add | - | - | - |
| 1‰ | + | ++ | + |
Note :-: general+: good ++: very well
Embodiment 2
The composition of raw materials of powder coating additive is as follows:
The oxyethyl group product (alcohol: EO=6:4) 80% of 2,4,7,9-tetramethyl--5-decine-4,7-glycol;
The oxyethyl group 10% of 2,4,7,9-tetramethyl--5-decine-4,7-glycol;
3,5-dimethyl-1-hexin-3-alcohol 10%.
Obtain mixture after proportionally being mixed by above-mentioned raw materials, be dispersed on aerosil, obtain powder coating additive by this mixture, wherein the content of this mixture in aerosil is 45%.Added in powder coating preparation process among powder coating, addition is the thousandth of powder coating weight, this powder coating additive have wherein wetting, the effect such as degassed, froth breaking, mainly play the effect of light.The effect of coatings additive(s) in embodiment 2 in epoxy-polyester powder coating, in table 2.
The effect of table 2 coatings additive(s) in epoxy-polyester powder coating
| Addition | Deviating from property of bubble 1. | Defoaming 2. | Wettability | 60 ° of gloss |
| Do not add | - | - | - | 92 |
| 1‰ | + | + | + | 99 |
Note :-: general+: good ++: very well
Embodiment 3
By percentage to the quality, composition of raw materials is as follows:
High acid value vibrin 50%;
2,5,8,11-tetramethyl--6-dodecyne-5,8-glycol 50%.
Be dispersed among high acid value vibrin by 2,5,8,11-tetramethyl--6-dodecyne-5,8-glycol, it is effectively divided into 50%, prepares powder coating additive.Added among epoxy-polyester powder coating in powder coating preparation process, addition is 3/1000ths of powder coating weight, and this powder coating additive is the effect such as degassed, wetting and bright wherein, mainly plays froth breaking effect.The effect of coatings additive(s) in embodiment 3 in epoxy-polyester powder coating, in table 2.
Table 3 coatings additive(s) is at the effect in epoxy-polyester powder coating
| Addition | Deviating from property of bubble 1. | Defoaming 2. | 60 ° of gloss | Paint film levelling property |
| Do not add | - | - | 92 | - |
| 1‰ | + | + | 95 | + |
| 3‰ | + | ++ | 98 | ++ |
Note :-: general+: good ++: very well
1. the bubble in the capable product process of epoxy-polyester powder coating deviates from situation contrast.
2. the defoaming of coating film forming initial stage.
Claims (10)
1. a powder coating additive, is characterized in that, described powder coating additive comprises at least one alkynes alcohols material.
2. powder coating additive as claimed in claim 1, is characterized in that, described alkynes alcohols material is for liquid under normal temperature, and the oligopolymer of the alkynol compound of boiling point below 180 DEG C.
3. powder coating additive as claimed in claim 1, it is characterized in that, described alkynes alcohols material is 3, the trimer, 2 of 5-dimethyl-1-hexin-3-alcohol, 4,7, the oxyethyl group product, 2 of 9-tetramethyl--5-decine-4,7-glycol, 4, the oxyethyl group, 3 of 7,9-tetramethyl--5-decine-4,7-glycol, 5-dimethyl-1-hexin-3-alcohol or 2,5,8, at least one in 11-tetramethyl--6-dodecyne-5,8-glycol; The alcohol of the oxyethyl group product of wherein said 2,4,7,9-tetramethyl--5-decine-4,7-glycol: EO is 6 ~ 8:3 ~ 5.
4. powder coating additive as claimed in claim 1, it is characterized in that, described alkynes alcohols material is the trimer of 3,5-dimethyl-1-hexin-3-alcohol.
5. powder coating additive as claimed in claim 3, it is characterized in that, by percentage to the quality, described alkynes alcohols material is composed of the following components:
The oxyethyl group product 75 ~ 85% of 2,4,7,9-tetramethyl--5-decine-4,7-glycol;
The oxyethyl group 7 ~ 15% of 2,4,7,9-tetramethyl--5-decine-4,7-glycol;
3,5-dimethyl-1-hexin-3-alcohol 7 ~ 15%;
The alcohol of the oxyethyl group product of wherein said 2,4,7,9-tetramethyl--5-decine-4,7-glycol: EO is 6:4.
6. powder coating additive as claimed in claim 5, it is characterized in that, by percentage to the quality, described alkynes alcohols material is composed of the following components:
The oxyethyl group product 80% of 2,4,7,9-tetramethyl--5-decine-4,7-glycol;
The oxyethyl group 10% of 2,4,7,9-tetramethyl--5-decine-4,7-glycol;
3,5-dimethyl-1-hexin-3-alcohol 10%.
7. powder coating additive as claimed in claim 3, it is characterized in that, described alkynes alcohols material is 2,5,8,11-tetramethyl--6-dodecyne-5,8-glycol.
8. powder coating additive as claimed in claim 1, it is characterized in that, described alkynol class species adsorbs is on toner, aerosil or magnesiumcarbonate, and the mass ratio of described alkynes alcohols material and described toner, aerosil or magnesiumcarbonate is 9 ~ 10:20.
9. powder coating additive as claimed in claim 8, it is characterized in that, described alkynol class species adsorbs is on toner, and described alkynes alcohols material and described toner mass ratio are 1:2.
10. include as arbitrary in claim 1 ~ 9 as described in the powder coating of powder coating additive, it is characterized in that: the addition of described powder coating additive is thousandth to thousand/tri-of described powder coating weight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510228288.2A CN104845431A (en) | 2015-05-07 | 2015-05-07 | Powder coating assistant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510228288.2A CN104845431A (en) | 2015-05-07 | 2015-05-07 | Powder coating assistant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104845431A true CN104845431A (en) | 2015-08-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510228288.2A Pending CN104845431A (en) | 2015-05-07 | 2015-05-07 | Powder coating assistant |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070037942A1 (en) * | 2005-07-07 | 2007-02-15 | Janos Borbely | Preparation of reactive polymeric nanoparticles |
| CN102388087A (en) * | 2009-02-09 | 2012-03-21 | 亨斯迈先进材料（瑞士）有限公司 | Powder coating composition |
| CN103194025A (en) * | 2005-08-22 | 2013-07-10 | 罗门哈斯公司 | Methods for using hollow sphere polymers |
-
2015
- 2015-05-07 CN CN201510228288.2A patent/CN104845431A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070037942A1 (en) * | 2005-07-07 | 2007-02-15 | Janos Borbely | Preparation of reactive polymeric nanoparticles |
| CN103194025A (en) * | 2005-08-22 | 2013-07-10 | 罗门哈斯公司 | Methods for using hollow sphere polymers |
| CN102388087A (en) * | 2009-02-09 | 2012-03-21 | 亨斯迈先进材料（瑞士）有限公司 | Powder coating composition |
Non-Patent Citations (1)
| Title |
|---|
| DR.STEVEN MEDINA.: "《炔属表面活性剂——制备环保涂料的有力武器》", 《中国涂料》 * |
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Application publication date: 20150819 |
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