Dibutyl itaconate modified acrylic resin and preparation method thereof

Abstract

The invention discloses a dibutyl itaconate modified acrylic resin, which is characterized by comprising the following components by mass: 20-40% of xylene, 5%-15% of butyl acetate, 5-8% of acrylic acid, 15%-25% of styrene, 10%-15% of methyl methacrylate, 15%-25% of butyl acrylate, 1%-5% of dibutyl itaconate, 1-3% of acrylamide, and 1-2% of di-tert-butyl peroxide. The dibutyl itaconate modified acrylic resin provided by the invention has good wettability to organic pigments and fillers, has no influence to the paint film, and also greatly improves the comprehensive properties of resin.

Description

technical field [0001] The invention relates to a paint, in particular to a dibutyl itaconate modified acrylic resin and a preparation method thereof. Background technique [0002] In our traditional oil paint production process, in order to make the paint have a good anti-sedimentation effect, the following methods are mainly used. 1. Add organic pigments and fillers wetting agents to the paint. The characteristic is that the wetting properties of pigments and fillers are particularly good. When making black paints or red and yellow paints, an appropriate amount of wetting agents is generally added, but these additives are generally very good. Expensive, adding five thousandths will increase a lot of costs. 2. Add plasticizer. Generally, the amount should not be too much. If too much, the paint will become very viscous. If you add less, it will not achieve a good effect. Therefore, it is necessary to determine the amount of plasticizer according to the amount of pigments a...

AI Technical Summary

Problems solved by technology

1. Add organic pigments and fillers wetting agents to the paint. The characteristic is that the wetting properties of pigments and fillers are particularly good. When making black paints or red and yellow paints, an appropriate amount of wetting agents is generally added, but these additives are generally very good. Expensive, adding 5 / 1000 will increase a lot of cost

2. Add plasticizer. Generally, the amount should not be too much. If too much, the paint will become very viscous. If you add less, it will not achieve a good effect. Therefore, it is necessary to determine the amount of plasticizer according to the amount of pigments and fillers added. The amount of plasticizer, the molecular weight of this plasticizer is not too large, and the dryness is not very good (such as chlorinated paraffin), it has a certain degree of hydrophilicity, which will affect the water resistance of the paint film

Bentonite is not suitable for adding to the top coat, which will affect the gloss and fullness of the paint film

3. It is also possible to add an appropriate amount of alcohol or ketone solvents in the production process, which can properly improve the dustproof effect of the paint, but it is not obvious, and the price of alcohol and ketone solvents is still very expensive in the solvent, and the paint cost will be high

Therefore, the general oil-based paint is either cheap, but the quality and performance cannot keep up, or it is very expensive, and ordinary customers cannot accept it.