CN105176329A - Transparent mending primer for LED-UV (light emitting diode-ultraviolet) woodware and preparation method of transparent mending primer - Google Patents

Abstract

The invention relates to transparent mending primer for LED-UV (light emitting diode-ultraviolet) woodware and a preparation method of the transparent mending primer. The primer consists of the following ingredients in percentage by weight: 20 to 30 percent of epoxy acrylate resin, 5 to 10 percent of pure acrylate resin, 8 to 12 percent of special functional acrylate resin, 25 to 30 percent of monomers, 8 to 10 percent of photoinitiators, 0.5 percent to 1 percent of anti-settling agents, 0.3 to 0.5 percent of wetting dispersants and 11 to 20 percent of fillers, wherein the fillers consist of 6 to 12 percent of talcum powder and 5 to 8 percent of transparent powder through being metered in percentage by the total weight of paint; the special functional acrylate resin is low-energy cured functional acrylic resin; the epoxy acrylate resin is standard bisphenol A epoxy acrylate resin; the pure acrylate resin is trifunctional pure acrylate resin; the monomers are dipropylene glycol diacrylate; the photoinitiators are 2,4,6-trimethylbenzoyl-diphenyl phosphine oxide. The transparent mending primer has the advantages that the efficiency is high (the complete curing of a paint film can be realized after the irradiation of the LED-UV for 3 to 5 seconds); the low-energy curing performance is good; the construction is convenient; the transparency is high; the recoatability is good; the filling performance is good; the grinding performance is good; the environment is protected; no VOCs (volatile organic compounds) are discharged.

Description

A kind of LED-UV woodenware transparent chipping primer and preparation method

Technical field

The present invention relates to the transparent chipping primer of LED-UV woodenware.

Background technology

On-the-spot in finishing work at present, little depression is had because the careless of workmen or other factors make already installed woodenware gadget surface be scratched or encounter, occur that this situation just must carry out field patch recovery, traditional method is all use PU paint or PE paint to carry out repairing to fill, and traditional PU paints drying varniss time of PE paint and longly (needs 5-8 hour paint film could be dry, carry out next process), and cause workmen to have nothing to do during this period of time, can only where wait for, so the engineering worked to tight deadlines to scene brings many inconveniences, engineering is just easily caused to hand over the delay of phase.

The UV paint used in the market all has the feature of efficient (can realize paint film for 3 ~ 5 seconds through UV-irradiation to solidify completely), be all generally by high voltage mercury lamp luminous radiation, carrys out cross-linking and curing reaction and completes paint film forming.High voltage mercury lamp is due to power high (being generally 80W/cm), there is strong light intensity brightness, can ozone be produced and need supporting heat-removal system when very strong thermal radiation and work, therefore be unpractical at engineering construction onsite application, and the appearance of LED-UV lamp compensate for this defect, have that power low (general portable LED-UV curing is 9 ~ 12W) thermal radiation is little (impinges upon the temperature that workpiece surface just increases about 3 degree during the work of LED-UV lamp, and conventional high-pressure mercury lantern festival increases workpiece surface temperature about 20 degree), ozone free produces, availability is high, volume is little, easy to maintenance, meet environmental protection and safety requirements.Therefore the transparent repair paint of the special woodenware of the LED-UV that LED-UV lamp can be adopted to be cured is needed badly, to construct at engineering site.

Summary of the invention

The technical problem to be solved in the present invention is to provide the transparent chipping primer of UV woodenware of a kind of LED-UV, the transparent chipping primer of this UV woodenware has efficiently (within 3 ~ 5 seconds, can realize paint film through LED-UV UV-irradiation to solidify completely), low-yield curing performance is good, easy construction, transparency is high, recoatability good, fillibility is good, grinability is good, environmental protection VOC free discharge advantage.

In order to solve the problems of the technologies described above, the invention provides the transparent chipping primer of a kind of LED-UV woodenware, being made up of the component of following weight percent:

Epocryl 20 ~ 30%;

Pure acrylate resin 5 ~ 10%;

Specific functionality acrylate resin 8 ~ 12%;

Monomer 25 ~ 30%;

Light trigger 8 ~ 10%;

Anti-settling agent 0.5%-1%;

Wetting dispersing agent 0.3-0.5%;

Filler 11 ~ 20%;

Described filler forms by accounting for the transparent powder of described filler by the talcum powder and 5-8% that account for coating gross weight 6-12%;

Described specific functionality resin is the functional acrylic resin of low-yield solidification;

Described epoxy acrylic resin is standard Bisphenol-A epoxy CALCIUM ACRYLATE;

Described pure acrylate resin is the pure acrylate resin of trifunctional;

Described monomer is propylene glycol diacrylate;

Described light trigger is 2,4,6-trimethylbenzoy-dipheny phosphine oxide.

Preferably, the described LED-UV woodenware weight percent content of each component of transparent chipping primer is:

Epocryl 25 ~ 29%;

Pure acrylate resin 5 ~ 6%;

Specific functionality acrylate resin 10 ~ 12%;

Monomer 26 ~ 30%;

Light trigger 8 ~ 10%;

Anti-settling agent 0.5%-0.7%;

Wetting dispersing agent 0.3-0.5%;

Filler 11 ~ 20%;

Described filler forms by accounting for the transparent powder of described filler by the talcum powder and 6-8% that account for coating gross weight 10-12%.

Preferably, the pure acrylate resin of described trifunctional is Heng Guang company 1700.

Preferably, the functional acrylic resin of described low-yield solidification is the ADDITOL of cyanogen specialization work ^tMlED01.

Preferably, described anti-settling agent is aerosil.

Preferably, described wetting dispersing agent is EFKA-4010.

Present invention also offers the above-mentioned LED-UV woodenware preparation method of transparent chipping primer, comprise the following steps:

Step one, under the condition avoiding daylight or UV-irradiation, according to described proportioning is slow successively, Epocryl, pure acrylate resin, the functional acrylic resin of low-yield solidification, monomer, light trigger, anti-settling agent, wetting dispersing agent are stirred to and mix, mixture temperature is kept to be less than 50 DEG C in whipping process, stirring velocity is 500-8000 rev/min, continues 5 minutes;

Step 2, adds talcum powder and transparent powder according to described proportioning, disperses to be less than 60um to fineness in 10 minutes with the stirring velocity of 800-1000 rev/min, thus obtains the transparent chipping primer of LED-UV woodenware of the present invention.

The transparent chipping primer of the special woodenware of LED-UV of the present invention is on-the-spot in engineering construction, for defects such as the scratch of decoration woodenware gadget surface paint film and collisions, the method of blade coating or brushing is adopted to repair, then through UV-irradiation a few second that LED-UV lamp sends, namely can crosslinking curing film forming completely, if need to repeat to brush, polishing is not needed then, first can brush a transparent chipping primer of LED-UV woodenware (30 ~ 50g/ ㎡), with LED-UV light irradiation several seconds, after making film curing, continue to brush LED-UV woodenware with transparent chipping primer (30 ~ 50g/ ㎡), after within several seconds, making film curing with LED-UV light irradiation again, carry out sand milling below again, dedusting, the operation of upper finish paint.Use the transparent chipping primer of LED-UV woodenware to have easy construction at engineering construction scene, high-efficiency environment friendly, security is good; These product performance are superior, have that low-yield curing performance is good, fillibility is good, transparency is high, easy polishing, can the advantage such as recoat, VOC free volatilization.

Embodiment

Below by embodiment, be further described technical scheme of the present invention, each embodiment only preferably so that technical scheme of the present invention to be described, does not form limitation of the invention.

Various component of the present invention all adopts existing commercially available prod.

In following embodiment, described epoxy acrylic resin is standard Bisphenol-A epoxy CALCIUM ACRYLATE, can dissolve each other completely with the functional acrylic resin of most of reactive monomer, modified epoxy acrylate resin and low-yield solidification.

Described pure acrylate resin is the pure acrylate resin of trifunctional, it has, and weathering resistance is good, curing speed is moderate, the advantage of the recoatability of good, the adjustable UV resin of sticking power, and what the present invention adopted is 1700 models (hereinafter referred to as " Heng Guang company 1700 ") of Jiangmen city Heng Guang novel material company limited.

Described specific functionality resin is the functional acrylic resin of low-yield solidification, it is a kind of resin aiming at more low-yield LED-UV photocuring varnish and paint system design, this resin opens a kind of new paragon improving surface cure, introduce flowing water faster and produce line, be highly suitable for Lower Energy Consumption Curing system, that the present invention adopts is the ADDITOL of cyanogen specialization work ^tMlED01.

Described monomer is propylene glycol diacrylate (DPGDA), the features such as it is low that this monomer has viscosity, and diluting power is good, and curing speed is fast.

That described wetting dispersing agent adopts is EFKA-4010.

Described light trigger is for being 2,4,6-trimethylbenzoy-dipheny phosphine oxide (TPO).

Described filler is made up of the transparent powder of the talcum powder and 5-8% that account for coating gross weight 6-12%.

Embodiment 1

The transparent chipping primer of UV woodenware that the LED-UV of the present embodiment is special is made up of the component of following weight percent: Epocryl 28%, pure acrylate resin 5%, specific functionality resin 12%, monomer 28%, light trigger 8%, anti-settling agent 0.50%, wetting dispersing agent 0.50%, talcum powder 10% and transparent powder 8%.

The UV woodenware transparent chipping primer preparation method that the LED-UV of the present embodiment is special is as follows:

Step one, under the condition avoiding daylight or UV-irradiation, according to said ratio is slow successively, Epocryl, pure acrylate resin, the functional acrylic resin of low-yield solidification, monomer, light trigger, anti-settling agent, wetting dispersing agent are stirred to and mix, mixture temperature is kept to be less than 50 DEG C in whipping process, stirring velocity is 500-8000 rev/min, continues 5 minutes;

Step 2, adds talcum powder and transparent powder according to described proportioning, disperses to be less than 60um to fineness in 10 minutes with the stirring velocity of 800-1000 rev/min, thus obtains the transparent chipping primer of LED-UV woodenware of the present invention.Service check standard and detected result are as shown in embodiment in table one 1 corresponding data.

Embodiment 2

The transparent chipping primer of UV woodenware that the LED-UV of the present embodiment is special is made up of the component of following weight percent: Epocryl 25%, pure acrylate resin 6%, specific functionality acrylate resin 10%, monomer 30%, light trigger 10%, anti-settling agent 0.6%, wetting dispersing agent 0.4%, talcum powder 12% and transparent powder 6%.

According to the said ratio of the present embodiment, repeat the preparation method described in embodiment 1, the transparent chipping primer of LED-UV woodenware of the present invention can be obtained.Service check standard and detected result are as shown in embodiment in table one 2 corresponding data.

Embodiment 3

The transparent chipping primer of UV woodenware that the LED-UV of the present embodiment is special is made up of the component of following weight percent: Epocryl 29%, pure acrylate resin 6%, specific functionality resin 10%, monomer 26%, light trigger 9%, anti-settling agent 0.70%, wetting dispersing agent 0.30%, talcum powder 11%, transparent powder 8%.

According to the said ratio of the present embodiment, repeat the preparation method described in embodiment 1, the transparent chipping primer of LED-UV woodenware of the present invention can be obtained.Service check standard and detected result are as shown in embodiment in table one 3 corresponding data.

It is superior that the transparent chipping primer of the special woodenware of LED-UV of the various embodiments described above has product performance, and efficiently, low-yield curing performance is good, and fillibility is good, and transparency is high, easily polishes, can recoat, the advantages such as VOC free volatilization.

Table one

The above embodiment only have expressed embodiments of the present invention; it describes comparatively concrete and detailed; but therefore can not be interpreted as the restriction to the scope of the claims of the present invention; in every case the technical scheme adopting the form of equivalent replacement or equivalent transformation to obtain, all should drop within protection scope of the present invention.

Claims (7)

1. the transparent chipping primer of LED-UV woodenware, is characterized in that being made up of the component of following weight percent:

Epocryl 20 ~ 30%;

Pure acrylate resin 5 ~ 10%;

Specific functionality acrylate resin 8 ~ 12%;

Monomer 25 ~ 30%;

Light trigger 8 ~ 10%;

Anti-settling agent 0.5%-1%;

Wetting dispersing agent 0.3-0.5%;

Filler 11 ~ 20%;

Described filler forms by accounting for the transparent powder of described filler by the talcum powder and 5-8% that account for coating gross weight 6-12%;

Described specific functionality resin is the functional acrylic resin of low-yield solidification;

Described epoxy acrylic resin is standard Bisphenol-A epoxy CALCIUM ACRYLATE;

Described pure acrylate resin is the pure acrylate resin of trifunctional;

Described monomer is propylene glycol diacrylate;

Described light trigger is 2,4,6-trimethylbenzoy-dipheny phosphine oxide.

2. the transparent chipping primer of LED-UV woodenware according to claim 1, is characterized in that: the weight percent content of each component of the transparent chipping primer of described LED-UV woodenware is:

Epocryl 25 ~ 29%;

Pure acrylate resin 5 ~ 6%;

Specific functionality acrylate resin 10 ~ 12%;

Monomer 26 ~ 30%;

Light trigger 8 ~ 10%;

Anti-settling agent 0.5%-0.7%;

Wetting dispersing agent 0.3-0.5%;

Filler 11 ~ 20%;

Described filler forms by accounting for the transparent powder of described filler by the talcum powder and 6-8% that account for coating gross weight 10-12%.

3. the transparent chipping primer of LED-UV woodenware according to claim 1 or 2, is characterized in that: the pure acrylate resin of described trifunctional is Heng Guang company 1700.

4. the transparent chipping primer of LED-UV woodenware according to claim 1 or 2, is characterized in that: the functional acrylic resin of described low-yield solidification is the ADDITOL of cyanogen specialization work ^tMlED01.

5. the transparent chipping primer of LED-UV woodenware according to claim 1 or 2, is characterized in that: described anti-settling agent is aerosil.

6. the transparent chipping primer of LED-UV woodenware according to claim 1 or 2, is characterized in that: described wetting dispersing agent is EFKA-4010.

7. the LED-UV woodenware preparation method of transparent chipping primer described in claim 1 ~ 6 any one, is characterized in that comprising the following steps:

Step one, under the condition avoiding daylight or UV-irradiation, according to described proportioning is slow successively, Epocryl, pure acrylate resin, the functional acrylic resin of low-yield solidification, monomer, light trigger, anti-settling agent, wetting dispersing agent are stirred to and mix, mixture temperature is kept to be less than 50 DEG C in whipping process, stirring velocity is 500-8000 rev/min, continues 5 minutes;

Step 2, adds talcum powder and transparent powder according to described proportioning, disperses to be less than 60um to fineness in 10 minutes with the stirring velocity of 800-1000 rev/min, thus obtains the transparent chipping primer of LED-UV woodenware of the present invention.