CN105038426A - High-solid low-VOC (volatile organic compound) benzene-free solvent-type acrylic resin - Google Patents
High-solid low-VOC (volatile organic compound) benzene-free solvent-type acrylic resin Download PDFInfo
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- CN105038426A CN105038426A CN201510334224.0A CN201510334224A CN105038426A CN 105038426 A CN105038426 A CN 105038426A CN 201510334224 A CN201510334224 A CN 201510334224A CN 105038426 A CN105038426 A CN 105038426A
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Abstract
The invention relates to a 3C paint, particularly a high-solid low-VOC (volatile organic compound) benzene-free solvent-type acrylic resin. The high-solid low-VOC (volatile organic compound) benzene-free solvent-type acrylic resin is a benzene-free system and is composed of a component A, a component B and a component C. The component A is composed of butyl acetate and propylene glycol methyl ether acetate. The component B is composed of methyl methacrylate, styrene, 2-hydroxypropyl acrylate, butyl methacrylate, butyl acrylate, acrylic acid and tert-butyl peroxybenzoate. The component C is composed of tert-butyl peroxybenzoate and butyl acetate. When being used as a finish paint matched with the primer for 3C electronic products, the resin has the advantages of favorable matching property, higher hardness, higher wear resistance, excellent alcohol resistance, excellent chemical resistance, excellent artificial sweat resistance, excellent cold/heat shock resistance, excellent high-temperature/high-dampness resistance, excellent artificial aging resistance and the like. The resin has high solid content, low viscosity and lower VOC, is more environment-friendly when being used as a benzene-free system, and has higher market competitiveness.
Description
Technical field
The present invention relates to a kind of 3C coating, especially relate to a kind of Gao Gu, low VOC non-toluene solvent type acrylic resin.
Background technology
3C coating is the general designation of 3C Product coating used, and so-called " 3C Product ", be exactly computer (Computer), communication (Communication) and consumer electronics product (ConsumerElectronics) triplicity, also known as " information household appliances ".As " 12 " the 4th 2014 of days, China is from the transformation just aobvious clue of " world's factory " trend " world market ", and Chinese 3C industry also will face an all-round developing new opportunities." 12 " period, Communication in China scale of investment will reach 2,000,000,000,000,3C industry and face rare opportunity to develop.At present, the large market of 3C industry becomes the wherein power pulling the national economic development really, also create many wealth for many enterprises, global 3C Product market increases about 10% every year, and the 3C Product growth rate of market of China often reaches more than 12% every year.On the whole, the coming years, 3C market outlook were optimistic.
All the time, 3C Product has higher requirement to anticorrosion and decorative appearance, and this and its base material that uses and shell coating close relation.Its plastic basis material of general 3C Product has several as follows: butadiene-acrylonitrile-vinylbenzene (ABS), polycarbonate (PC), polycarbonate modified butadiene-acrylonitrile-vinylbenzene (PC+ABS), glass fibre modified polycarbonate (PC+GF).These several plastics proembryo goods are extrusion molding or compression molding, and be subject in hot extrusion process, in raw material, micro-air or volatile impunty may escape into surface, and form the microdefects such as more " crater " pattern, cause surface gloss to reduce, aesthetic measure is poor.In addition, it is wear-resisting, solvent resistance is not high, easy scratch, haze, surface damage etc., therefore need to carry out surface decoration and protection to plastic part.The quality of surface coating technique, has become one of important indicator determining product specification.
Electronic product surface is often coated with metallic paint or real color bottom paint, thus reaches filling effect, adds itself color or metal color, can play certain decoration function equally.The use of priming paint can reduce the usage quantity of finish paint; Outer cover layer of transparent finish paint on priming paint basis, the performances such as the fullness ratio of paint film, hardness, scratch resistance and wearing and tearing can be improved, conventional finish paint kind comprises elastomeric polyester resins (SoftTouch, ST), UV-curable finish coat (UV-curing) and acroleic acid polyurethane (PUA) three class.
Elastomeric polyester resins (SoftTouch, ST) be vibrin and as solidifying agent use urethane composition two component finish paints, the paint film with soft feel can be formed during spraying, feel is fine and smooth, paint film is evenly smooth, shock-resistance, restorability and chemicals are by force the optimal performance of this product, be widely used in mobile phone, the aspects such as notebook computer, but as flexibility finish paint at scratch resistance, there is larger defect in the aspect such as wear-resisting, if elastic coating uses in high temperature environments simultaneously, solvent causes paint film to after-tack, anti-stain characteristic lowers, affect the attractive in appearance of paint film.
UV resin adopt ultraviolet light irradiation and moment solidification technology, applicable high-speed production lines is worked continuously, and is developed rapidly in recent decades always, and annual growth is about 8 ~ 10%.Solvent-free in UV light-cured resin formula, therefore the problem that solvent-free volatilization brings; Under room temperature, energy fast setting, reduces energy consumption; Curing speed is fast, and energy required for unit surface is reduced; Coating process is simple is coated with heat-sensitive substrate material; Curing apparatus volume is little, and finished product can be stacked immediately simultaneously, can save space; Coating performance is excellent.If but photo-cured coating does not use harmful monomer, normal being difficult to prepares the low-down coating of viscosity, and the use of these monomers has stimulation to skin; High expensive, requires that UV paint line various kinds of equipment has high input valuable product; Because of the constructional difficulties that 100% solid part causes, roller coat requires that when constructing, the problems such as shrinkage cavity easily appear in paint film, have shrinkability when paint film is thicker for plane coating adhesion is low.
PUA finish paint is by Hydroxylated acrylic resin and two component finish paints of forming of urethane resin of using as solidifying agent, there is good weather resistance, weathering resistance, gloss retention, the mechanical property of paint film, fullness ratio, good weatherability, hardness is large, guarantor's look good, luminance brightness is high, resistance to marring is good, there are certain water-fast, oil-proofness, and can by selecting monomer, adjustment proportioning, changing preparation method and spell and use other resin, make a series of acrylic resin paint, so be used widely in 3C market.But existing PUA finish paint generally adopts the poisonous and harmful such as dimethylbenzene, toluene reagent as solvent, viscosity, solid containing and acid number all not fully up to expectations, have some limitations.
Summary of the invention
For solving the problem, the invention provides a kind of Gao Gu, low VOC non-toluene solvent type acrylic resin, this resin, as the matching used finish paint of 3C electronic product priming paint, possesses good matching capacity, has higher hardness, wear resistance, there is the performances such as excellent ethanol-tolerant, chemicals-resistant, synthetic perspiration, thermal shock, hot and humid, temper(ing), this resin is high-solid lower-viscosity simultaneously, has lower VOC, as without benzene system, environmental protection more, the market competitiveness is stronger.
Described acrylic resin is without benzene system, by A, B, C tri-part form; Described part A is made up of N-BUTYL ACETATE and 1-Methoxy-2-propyl acetate; Described part B is made up of the special butyl ester of methyl methacrylate, vinylbenzene, Propylene glycol monoacrylate, butyl methacrylate, butyl acrylate, vinylformic acid and perbenzoic acid; Described C part is made up of the special butyl ester of perbenzoic acid and N-BUTYL ACETATE.
Preferably, the mass ratio of part A, part B and C part is 8:14:1-8.5:14.5:1, can obtain best viscosity, admittedly contain and acid number index.
Preferably, the massfraction that each component of part A accounts for part A is: N-BUTYL ACETATE 80-85%, 1-Methoxy-2-propyl acetate 15-20%.
Preferably, the massfraction that each component of part B accounts for part B is: methyl methacrylate 24-34%, vinylbenzene 21-31%, Propylene glycol monoacrylate 15-15.5%, butyl methacrylate 15-20%, butyl acrylate 7-13%, vinylformic acid 1-1.5%, the special butyl ester 1.5-2% of perbenzoic acid.
Preferably, the massfraction that each component of C part accounts for C part is: perbenzoic acid spy butyl ester 4-4.5%, N-BUTYL ACETATE 95.5-96%.
Prepare a method for above-mentioned Gao Gu, low VOC non-toluene solvent type acrylic resin, be made up of following steps:
(1) part A is dropped into, reflux 10-20 minute;
(2) drip part B, within 2-3 hour, drip off, in reaction process, keep backflow;
(3) after dripping part B, backflow insulation 1-2 hour;
(4) drip C part, within 8-10 minute, drip off, backflow insulation 2-3 hour, reaction completes, blowing.
Detect solids content index after blowing, as detected data not at 58-62%, the adjustment of adjustment quantity of solvent is admittedly containing index.
Preferably, the time of described step (1) reflux is 15 minutes.
Preferably, the time of described step (3) backflow insulation is 1.5 hours.
Preferably, the time of described step (4) backflow insulation is 2.5 hours.
The invention has the beneficial effects as follows:
(1) N-BUTYL ACETATE (BAC), methyl iso-butyl ketone (MIBK) (MIBK), 1-Methoxy-2-propyl acetate (PMA) equal solvent is used to replace dimethylbenzene, toluene solvant, for 3C Product high-performance environment friendly coating provides without benzene system solvent type acrylic resin; ;
(2) resin synthesized is high solid, low VOC, low viscosity, further enhancing the advantage of resin in environmental protection, improves the market competitiveness;
(3) the product fundamental property without benzene system solvent type acrylic resin and overseas enterprise of the present invention is close; Identical with the product application the performance test results of overseas enterprise, there are wide market outlook.
Embodiment
For making the object of the embodiment of the present invention, technical scheme and advantage clearly, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Embodiment 1:
A kind of Gao Gu, low VOC non-toluene solvent type acrylic resin, by A, B, C tri-part form; Described part A is made up of N-BUTYL ACETATE and 1-Methoxy-2-propyl acetate; Described part B is made up of the special butyl ester of methyl methacrylate, vinylbenzene, Propylene glycol monoacrylate, butyl methacrylate, butyl acrylate, vinylformic acid and perbenzoic acid; Described C part is made up of the special butyl ester of perbenzoic acid and N-BUTYL ACETATE.
Wherein each component addition is: N-BUTYL ACETATE 324 parts, 1-Methoxy-2-propyl acetate 64.8 parts, methyl methacrylate 180 parts, vinylbenzene 180 parts, Propylene glycol monoacrylate 100.8 parts, butyl methacrylate 129.6 parts, butyl acrylate 50.4 parts, 7.2 parts, vinylformic acid, the special butyl ester 12 parts of perbenzoic acid, the special butyl ester 2 parts of perbenzoic acid, N-BUTYL ACETATE 45 parts.
Prepare a method for above-mentioned Gao Gu, low VOC non-toluene solvent type acrylic resin, be made up of following steps:
(1) part A is dropped into, reflux 15 minutes;
(2) drip part B, within 3 hours, drip off, in reaction process, keep backflow;
(3) after dripping part B, backflow insulation 1.5 hours;
(4) drip C part, within 10 minutes, drip off, backflow insulation 2.5 hours, reaction completes, blowing.
After testing, the acrylic resin that the present embodiment obtains, 25 DEG C of viscosity are 3400mpas; Solids content 60.1%; Acid number 6.03mgKOH/g.
Embodiment 2:
A kind of Gao Gu, low VOC non-toluene solvent type acrylic resin, by A, B, C tri-part form; Described part A is made up of N-BUTYL ACETATE and 1-Methoxy-2-propyl acetate; Described part B is made up of the special butyl ester of methyl methacrylate, vinylbenzene, Propylene glycol monoacrylate, butyl methacrylate, butyl acrylate, vinylformic acid and perbenzoic acid; Described C part is made up of the special butyl ester of perbenzoic acid and N-BUTYL ACETATE.
Wherein each component addition is: N-BUTYL ACETATE 324 parts, 1-Methoxy-2-propyl acetate 64.8 parts, methyl methacrylate 160 parts, vinylbenzene 200 parts, Propylene glycol monoacrylate 100.8 parts, butyl methacrylate 100 parts, butyl acrylate 80 parts, 7.2 parts, vinylformic acid, the special butyl ester 12 parts of perbenzoic acid, the special butyl ester 2 parts of perbenzoic acid, N-BUTYL ACETATE 45 parts.
Prepare a method for above-mentioned Gao Gu, low VOC non-toluene solvent type acrylic resin, be made up of following steps:
(1) part A is dropped into, reflux 17 minutes;
(2) drip part B, within 2 hours, drip off, in reaction process, keep backflow;
(3) after dripping part B, backflow insulation 2 hours;
(4) drip C part, within 9 minutes, drip off, backflow insulation 2 hours, reaction completes, blowing.
After testing, the acrylic resin that the present embodiment obtains, 25 DEG C of viscosity are 3600mpas; Solids content 60.2%; Acid number 6.04mgKOH/g.
Embodiment 3:
A kind of Gao Gu, low VOC non-toluene solvent type acrylic resin, by A, B, C tri-part form; Described part A is made up of N-BUTYL ACETATE and 1-Methoxy-2-propyl acetate; Described part B is made up of the special butyl ester of methyl methacrylate, vinylbenzene, Propylene glycol monoacrylate, butyl methacrylate, butyl acrylate, vinylformic acid and perbenzoic acid; Described C part is made up of the special butyl ester of perbenzoic acid and N-BUTYL ACETATE.
Wherein each component addition is: N-BUTYL ACETATE 324 parts, 1-Methoxy-2-propyl acetate 64.8 parts, methyl methacrylate 220 parts, vinylbenzene 140 parts, Propylene glycol monoacrylate 100.8 parts, butyl methacrylate 120 parts, butyl acrylate 60 parts, 7.2 parts, vinylformic acid, the special butyl ester 12 parts of perbenzoic acid, the special butyl ester 2 parts of perbenzoic acid, N-BUTYL ACETATE 45 parts.
Prepare a method for above-mentioned Gao Gu, low VOC non-toluene solvent type acrylic resin, be made up of following steps:
(1) part A is dropped into, reflux 20 minutes;
(2) drip part B, within 2.5 hours, drip off, in reaction process, keep backflow;
(3) after dripping part B, backflow insulation 1 hour;
(4) drip C part, within 8 minutes, drip off, backflow insulation 4 hours, reaction completes, blowing.
After testing, the acrylic resin that the present embodiment obtains, 25 DEG C of viscosity are 3500mpas; Solids content 59.8%; Acid number 6.11mgKOH/g.
Claims (10)
1. high solid, a low VOC non-toluene solvent type acrylic resin, is characterized in that: described acrylic resin for without benzene system, by A, B, C tri-part form; Described part A is made up of N-BUTYL ACETATE and 1-Methoxy-2-propyl acetate; Described part B is made up of the special butyl ester of methyl methacrylate, vinylbenzene, Propylene glycol monoacrylate, butyl methacrylate, butyl acrylate, vinylformic acid and perbenzoic acid; Described C part is made up of the special butyl ester of perbenzoic acid and N-BUTYL ACETATE.
2. Gao Gu, low VOC non-toluene solvent type acrylic resin as claimed in claim 1, is characterized in that: the mass ratio of part A, part B and C part is 8:14:1-8.5:14.5:1.
3. as claimed in claim 1 or 2 Gao Gu, low VOC non-toluene solvent type acrylic resin, is characterized in that the massfraction that each component of part A accounts for part A is: N-BUTYL ACETATE 80-85%, 1-Methoxy-2-propyl acetate 15-20%.
4. Gao Gu, low VOC non-toluene solvent type acrylic resin as claimed in claim 1 or 2, it is characterized in that the massfraction that each component of part B accounts for part B is: methyl methacrylate 24-34%, vinylbenzene 21-31%, Propylene glycol monoacrylate 15-15.5%, butyl methacrylate 15-20%, butyl acrylate 7-13%, vinylformic acid 1-1.5%, the special butyl ester 1.5-2% of perbenzoic acid.
5. Gao Gu, low VOC non-toluene solvent type acrylic resin as claimed in claim 1 or 2, is characterized in that each component of C part accounts for C massfraction partly and is: perbenzoic acid special butyl ester 4-4.5%, N-BUTYL ACETATE 95.5-96%.
6. prepare a method for Gao Gu as claimed in claim 1, low VOC non-toluene solvent type acrylic resin, it is characterized in that being made up of following steps:
Drop into part A, reflux 10-20 minute;
Drip part B, within 2-3 hour, drip off, in reaction process, keep backflow;
After dripping part B, backflow insulation 1-2 hour;
Drip C part, within 8-10 minute, drip off, backflow insulation 2-3 hour, reaction completes, blowing.
7. prepare the method for Gao Gu, low VOC non-toluene solvent type acrylic resin as claimed in claim 6, it is characterized in that: the time of described step (1) reflux is 15 minutes.
8. prepare the method for Gao Gu, low VOC non-toluene solvent type acrylic resin as claimed in claim 6, it is characterized in that: the time of described step (3) backflow insulation is 1.5 hours.
9. prepare the method for Gao Gu, low VOC non-toluene solvent type acrylic resin as claimed in claim 6, it is characterized in that: the time of described step (4) backflow insulation is 2.5 hours.
10. a purposes for Gao Gu according to claim 1, low VOC non-toluene solvent type acrylic resin, is characterized in that: as the matching used finish paint of 3C electronic product priming paint.
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| CN201510334224.0A CN105038426A (en) | 2015-06-16 | 2015-06-16 | High-solid low-VOC (volatile organic compound) benzene-free solvent-type acrylic resin |
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| CN201510334224.0A CN105038426A (en) | 2015-06-16 | 2015-06-16 | High-solid low-VOC (volatile organic compound) benzene-free solvent-type acrylic resin |
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| CN106008778A (en) * | 2016-06-29 | 2016-10-12 | 潍坊富乐新材料有限公司 | Modified thermoplastic acrylic resin and preparation method thereof |
| CN106188381A (en) * | 2016-08-09 | 2016-12-07 | 王建周 | A kind of flame-proofed thermoplastic acrylic acid resin composition and preparation method thereof |
| CN112194753A (en) * | 2020-09-08 | 2021-01-08 | 莱阳千宝新材料制造有限公司 | Acrylic resin, low-VOC polypropylene coating material and preparation method thereof |
| CN113185632A (en) * | 2021-04-23 | 2021-07-30 | 泰兴盛嘉树脂有限公司 | Preparation method of benzene-free high-solid-content thermoplastic acrylic resin |
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| CN113185632A (en) * | 2021-04-23 | 2021-07-30 | 泰兴盛嘉树脂有限公司 | Preparation method of benzene-free high-solid-content thermoplastic acrylic resin |
| CN113185632B (en) * | 2021-04-23 | 2022-04-22 | 泰兴盛嘉树脂有限公司 | Preparation method of benzene-free high-solid-content thermoplastic acrylic resin |
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Application publication date: 20151111 |