Single-component organic silicon modification thermoplastic acrylic acid wood lacquer

Abstract

The invention discloses single-component organic silicon modification thermoplastic acrylic acid wood lacquer. Conventional wood lacquer contains two harmful components which are TDI (toluene diisocynate) and VOC (volatile organic compounds). The single-component organic silicon modification thermoplastic acrylic acid wood lacquer is prepared from 45%-55% of organic silicon modification thermoplastic acrylic acid resin, 15%-25% of nitro-cotton liquid, 20-30% of titanium white color paste, 0.5%-2% of a leveling agent and a deforming agent and 2%-5% of butyl ester. The single-component organic silicon modification thermoplastic acrylic acid wood lacquer has the normal-temperature air drying characteristic under the condition that no curing agent is added, and therefore, the damage of the TDI in the curing agent on human bodies is completely eradicated. The modified resin has relatively low viscosity, so that during preparing the lacquer, more solids can be obtained, thus the content of the VOC is reduced, and the plumpness of paint films is improved. The single-component organic silicon modification thermoplastic acrylic acid wood lacquer has the characteristics of high paint film plumpness, high hardness, high heat resistance, high solvent resistance, high adhesive resistance and good hand feel of polyurethane paint as well as the characteristics of stable luster, small influence affected by environments, fast dryness, simple and convenient construction and long using time of common thermoplastic acrylic acid wood lacquer.

Description

technical field

[0001] The invention relates to a one-component organosilicon-modified thermoplastic acrylic wood paint, which belongs to the technical field of paint preparation. Background technique

[0002] At present, the wood lacquers on the market can be divided into two types: solvent-based and non-solvent-based (water-based) wood lacquers. , polyurethane paint is the mainstream, accounting for 18% and 78% of the total domestic wood decorative paint production respectively. The global average index, the sum of nitro paint and polyurethane paint accounts for about 70%.

[0003] Nitro paint is a one-component paint, mainly composed of nitrocellulose, alkyd resin, plasticizer, mixed solvent and pigments and fillers. Its main advantages are fast drying of the paint film, easy repair, light color, high transparency and convenient construction. The main disadvantages of nitro-based coatings are poor heat resistance, cold resistance, light resistance, and alkali resistanc...

Examples

Embodiment 1

[0032] 1. Preparation of silicone modified thermoplastic acrylic resin:

[0033] (1) Raw material formula:

[0034] Methyl methacrylate 10 kg Butyl methacrylate 9 kg

[0035] Styrene 30 kg Hydroxypropyl ester 1 kg

[0036] Acrylic acid 1.5 kg Benzoyl peroxide 1.5 kg

[0037] Xylene 30kg Butyl 10kg

[0038] Silane coupling agent KH-570 10 kg;

[0039] (2) For the above raw materials, first take 0.9 kg of benzoyl peroxide and 9 kg of xylene and dissolve together to obtain component A, then take 0.6 kg of benzoyl peroxide and dissolve together with 6 kg of xylene to obtain component B, A and B The two components were soaked for more than 10 hours to remove the moisture in the benzoyl peroxide to obtain a mixed solution of components A and B for subsequent use;

[0040] (3) Except for the silane coupling agent KH-570, mix the raw material monomers evenly, then add the component A mixed liquid into the mixed monomer mixed liquid, stir evenly to obtain the A mixed monomer...

Embodiment 2

[0054] 1. Preparation of silicone modified thermoplastic acrylic resin:

[0055] (1) Raw material formula:

[0056] Methyl methacrylate 5 kg Butyl methacrylate 5 kg

[0057] Styrene 25 kg Hydroxypropyl ester 5 kg

[0058] Acrylic acid 0.5 kg Benzoyl peroxide 0.5 kg

[0059] Xylene 40 kg Butyl ester 15 kg

[0060] Silane coupling agent KH-570 3 kg;

[0061] (2) For the above raw materials, first dissolve 0.3 kg of benzoyl peroxide and 3 kg of xylene to obtain component A, then dissolve 0.2 kg of benzoyl peroxide and 2 kg of xylene to obtain component B. The two components were soaked for more than 10 hours to remove the moisture in the benzoyl peroxide to obtain a mixed solution of components A and B for subsequent use;

[0062] (3) Same as step (3) of embodiment 1;

[0063] (4) Add the remaining xylene and butyl ester to the reaction kettle, and start adding the A mixed monomer liquid dropwise when the temperature rises to 100°C. The dropwise addition is complete...

Embodiment 3

[0073] 1. Preparation of silicone modified thermoplastic acrylic resin:

[0074] (1) Raw material formula:

[0075] Methyl methacrylate 10 kg Butyl methacrylate 10 kg

[0076] Styrene 35 kg Hydroxypropyl ester 1 kg

[0077] Acrylic acid 2kg Benzoyl peroxide 2kg

[0078] Xylene 30kg Butyl 10kg

[0079] Silane coupling agent KH-570 10 kg;

[0080] (2) For the above raw materials, first dissolve 1.2 kg of benzoyl peroxide and 12 kg of xylene to obtain component A, and then dissolve 0.8 kg of benzoyl peroxide and 8 kg of xylene to obtain component B. The two components were soaked for more than 10 hours to remove the moisture in the benzoyl peroxide to obtain a mixed solution of components A and B for subsequent use;

[0081] (3)-(5) are the same as Steps (3)-(5) of Embodiment 1;

[0082] 2. Preparation of one-component silicone modified thermoplastic acrylic wood paint:

[0083] (1) Raw material formula:

[0084] Silicone modified thermoplastic acrylic resin 45%-55% ...

technical field

[0001] The invention relates to a one-component organosilicon-modified thermoplastic acrylic wood paint, which belongs to the technical field of paint preparation. Background technique

[0002] At present, the wood lacquers on the market can be divided into two types: solvent-based and non-solvent-based (water-based) wood lacquers. , polyurethane paint is the mainstream, accounting for 18% and 78% of the total domestic wood decorative paint production respectively. The global average index, the sum of nitro paint and polyurethane paint accounts for about 70%.

[0003] Nitro paint is a one-component paint, mainly composed of nitrocellulose, alkyd resin, plasticizer, mixed solvent and pigments and fillers. Its main advantages are fast drying of the paint film, easy repair, light color, high transparency and convenient construction. The main disadvantages of nitro-based coatings are poor heat resistance, cold resistance, light resistance, and alkali resistanc...

Examples

Embodiment 1

[0032] 1. Preparation of silicone modified thermoplastic acrylic resin:

[0033] (1) Raw material formula:

[0034] Methyl methacrylate 10 kg Butyl methacrylate 9 kg

[0035] Styrene 30 kg Hydroxypropyl ester 1 kg

[0036] Acrylic acid 1.5 kg Benzoyl peroxide 1.5 kg

[0037] Xylene 30kg Butyl 10kg

[0038] Silane coupling agent KH-570 10 kg;

[0039] (2) For the above raw materials, first take 0.9 kg of benzoyl peroxide and 9 kg of xylene and dissolve together to obtain component A, then take 0.6 kg of benzoyl peroxide and dissolve together with 6 kg of xylene to obtain component B, A and B The two components were soaked for more than 10 hours to remove the moisture in the benzoyl peroxide to obtain a mixed solution of components A and B for subsequent use;

[0040] (3) Except for the silane coupling agent KH-570, mix the raw material monomers evenly, then add the component A mixed liquid into the mixed monomer mixed liquid, stir evenly to obtain the A mixed monomer...

Embodiment 2

[0054] 1. Preparation of silicone modified thermoplastic acrylic resin:

[0055] (1) Raw material formula:

[0056] Methyl methacrylate 5 kg Butyl methacrylate 5 kg

[0057] Styrene 25 kg Hydroxypropyl ester 5 kg

[0058] Acrylic acid 0.5 kg Benzoyl peroxide 0.5 kg

[0059] Xylene 40 kg Butyl ester 15 kg

[0060] Silane coupling agent KH-570 3 kg;

[0061] (2) For the above raw materials, first dissolve 0.3 kg of benzoyl peroxide and 3 kg of xylene to obtain component A, then dissolve 0.2 kg of benzoyl peroxide and 2 kg of xylene to obtain component B. The two components were soaked for more than 10 hours to remove the moisture in the benzoyl peroxide to obtain a mixed solution of components A and B for subsequent use;

[0062] (3) Same as step (3) of embodiment 1;

[0063] (4) Add the remaining xylene and butyl ester to the reaction kettle, and start adding the A mixed monomer liquid dropwise when the temperature rises to 100°C. The dropwise addition is complete...

Embodiment 3

[0073] 1. Preparation of silicone modified thermoplastic acrylic resin:

[0074] (1) Raw material formula:

[0075] Methyl methacrylate 10 kg Butyl methacrylate 10 kg

[0076] Styrene 35 kg Hydroxypropyl ester 1 kg

[0077] Acrylic acid 2kg Benzoyl peroxide 2kg

[0078] Xylene 30kg Butyl 10kg

[0079] Silane coupling agent KH-570 10 kg;

[0080] (2) For the above raw materials, first dissolve 1.2 kg of benzoyl peroxide and 12 kg of xylene to obtain component A, and then dissolve 0.8 kg of benzoyl peroxide and 8 kg of xylene to obtain component B. The two components were soaked for more than 10 hours to remove the moisture in the benzoyl peroxide to obtain a mixed solution of components A and B for subsequent use;

[0081] (3)-(5) are the same as Steps (3)-(5) of Embodiment 1;

[0082] 2. Preparation of one-component silicone modified thermoplastic acrylic wood paint:

[0083] (1) Raw material formula:

[0084] Silicone modified thermoplastic acrylic resin 45%-55% ...