Abstract: The comprehensive performance of acrylic resin has excellent comprehensive performance and a wide range of applications. The generality of acrylic resin has been obviously limited. This paper effectively solves the problem of hybridization of hydroxy acrylic resin and high, medium, and low, hypherotic acid resin, and TDI bonus curing agent in high, medium, and low, hypofocyl ether resin, and broaden the application of acrylic resin scope.

Keywords: acrylic resin, amino -based resin with high, medium, and low etherization; alcoholic acid resin, polyester, TDI bonus solid agent, mixed solution

0 introduction

The solvent -based acrylic resin can be adjusted due to the TG value, hydroxymal value, and acid values, and indicators such as hardness, flexibility, and gloss can also be adjusted. There are various needs and continuous demand for people. Therefore, acrylic resin has a history of 30 years in the country, but in the field of paint applications, it has developed to the second largest resin system in the alcoholic acid resin. In recent years, international crude oil prices Continuously rising, but has not caused a significant impact on the development and application of acrylic resin. At present, the resin does not have alternatives, and acrylic resin is still the focus of the domestic resin development.

1 experimental part

1.1 Raw materials and auxiliaries

New pentoplastiol: industrial grade, trimal hydroxymethylene, industrial grade, Ji diic acid: industrial grade, intercipate phenyl acid: industrial grade, phthalate acid anhydride: industrial grade, 1010 antioxidants (steamba), Plutthite dilate: industrial grade, diopylene: industrial grade, butanol: industrial grade, acrylic butthodolin: industrial grade, methyl acrylic methyl ester: industrial grade, pyroherylene: industrial grade, methyl acrylic acid Acrylic hydroxyl ethyl: industrial grade, butyl acetate: industrial grade, peroxonal nry uncle butthodate: industrial grade, nitrogen (N2), KOH standard solution, acid -base indicator.

1.2 Main instrument and equipment YH electric heater, JJ-1 Power increase electric Stirrer, electronic table scale (0-2000g), GZX-9070MBE digital display blast drying oven, SYD-6536 petroleum product distillation tester, electronic balance (0.0001), NDJ-4 rotary viscometer, gravity spray gun, Wgg60-E4 sheen meter, paint film grid.

1.3 Experimental methods

1.3.1 Synthesis of polyester

18-20 parts of mink-pentaol, 10-13 parts of triaxy hydroxyl propionide, 5-7 parts of diaxide, 12-16 parts of phenyl acid, 10-14 parts of aconitic acid anhydride, 2-3 Cross-meteropine, 0.1-0.3 parts of 1010 antioxidants invest in the reaction kettle, pass the N2 temperature to 150 ° C, and increase the temperature of 20 ° C at a rate of 20 ° C to 220 ° C to 220 ° C for 1 hour. -12mgkoh/g, the cooling to about 145 ° C, plus 0.4-1.2 part of the dietite dietic anhydride, heat up at about 145 ° C for 1 hour, and then increase the temperature at an rate of 20 ° C to 180 ° C per hour. The acid value is 14-16 mgkoh/g, cooled to about 120 ° C, and about 40 parts of two t at mixed solvents are sparse, filtered, and spare.

1.3.2 Polyester modification

10-15 parts of toluene, 10-15 partsobitnes, 20-30 unsaturated polyester are put into the reactor, and the heating and returning should be 20 minutes. 8 parts of methyl acrylic, 6-10 parts of acrylic hydroxyl ester, 0.4-0.8 copies of acrylic, 0.3-0.5 parts of penta, 0.3-0.5 parts of oxide oxide, unlute butadoxyl ester, invested high slot and stirred for 15min. After 3 hours of dripping at a constant speed, use about 2 dicky ponds of about 2 dicks after adding a high position, then heat the reaction at 120-130 ° C for 5 hours, cool down to 80 ° C, stop N2, adjust the viscosity, after the viscosity is qualified, filter, filter, and filter. ,Package.

1.3.3 Performance Testing

(1) Experiment of miscibility with amino resin

The ether is based on amino -based resin: 200#solvent oil = 1: x (volume ratio) does not disappear for 15 seconds. Mixed -solution is prepared by modified acrylic resin: amino resin = 2: 1 ratio, stir well, and see if the hybrid solution is clear and transparent, and then scrapes it on the transparent glass plate, air dry, see if the coating film is transparent, shiny, creamless light, no milk light, no milk light, no milk light, no milk light, no milk light, no milk, no milk light, no milk light, no creamless light Essence The paint film luster is prepared by modified acrylic resin: amino resin = 2.5: 1 ratio, sprayed on the flat iron plate, first air dry for 20min, then at 140 ° C × 30min in the wind drying box, use the WGG60-E4 glossy meter with a glossy meter Test gloss.

(2) Mixed -soluble experiment with curing agent

Mixed -soluble is prepared by modified acrylic resin: curing agent = 2: 1 (w/w) ratio, stir well, and see if the mixed fluid is clear and transparent, then scrapes it on the transparent glass plate, air dry, see if the scraper is transparent Light without milk. The coating film is based on modified acrylic resin: curing agent = 5: 1 ratio, sprayed on the flat iron plate, naturally air-dried for 24 hours, WGG60-E4 gloss meter test gloss value.

(3) Mixed -soluble experiment with alcoholic resin

Mixed -soluble according to modified acrylic resin: Alcoholic acid resin = 1: 1 (w/w) ratio, stir well to see if the mixed fluid is clear and transparent, and then scrape it on the transparent glass plate, air dry, see if the scraper is transparent Light without milk. The paint film is based on modified acrylic resin: Alcoholic acid resin: amino resin = 1: 1: 1 ratio, spray it on the flat iron plate, first air dry for 20min, then in the wind drying box at 140 ° C × 30min, Test the gloss value with the WGG60-E4 luster.

2 Results and discussion

2.1 Influence of the amount of maleic anhydride in polyester resin on modified acrylic resin

The above four polyester samples can be within the same standard range of color, viscosity, solid, and acid values. The hybrid solution of acrylic resin and TDI bonus and alcoholic acid resin is poor, while the hybrid dissolves with polyester 3 and polyester 4 modifiers and TDI bonus and alcoholic acid resin is indeed good. Analysis of resin formula, the disadvantage of double bonds on the molecular structure of polyester 1 and polyester 2, resulting in a fewer chances of climbing of polyester resin and acrylic resin. Modified acrylic resin composition, so the mixing solution with TDI additives and alcoholic acid resin is still poor. The molecular structure of polyester 3 and polyester 4 is available for the two keys that can cause clustering more than polyester 1 and polyester 2. The mixed solve of the TDI bonus and the alcoholic acid resin is better, and the application range of acrylic resin has obviously become wider. However, when the same formula, the same process, and the same conversion rate, the viscosity of the acrylic resin with a modified polyester 4 is significantly higher than that of the first three samples, indicating that the double bonds on the molecular structure of the polyester 4 have begun to excess, which is not suitable for high solidification as high solidification. Contains low viscosity acrylic resin, polyester 3 is an ideal modified polyester formula. We finally chose polyester 3 as a cluster semi -finished product for acrylic resin to achieve the ideal comprehensive performance.

3 Conclusion

Bringing an appropriate amount of unsaturated bonds as semi -finished products. Through co -agglomeration with acrylic monomers, it can significantly improve the hybrid solution of acrylic resin and alcoholic acid resin, high, medium, and low ether resin and TDI. Scope of application of acrylic resin.