A two-component agricultural machinery anti-corrosion decorative finish paint and preparation method thereof

A two-component technology for agricultural machinery, applied in the field of paint, can solve problems such as health problems and high prices, and achieve the effects of improved reactivity, uniform molecular weight distribution, and easy availability of raw materials

Active Publication Date: 2015-09-16
ANQING LINGHU PAINT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the price of polyurethane paint is high, and some polyurethane paints contain quite a lot of free isocyanate, which is harmful to health if inhaled.
With the development of my country's machinery industry, the requirements for the cost performance of agricultural machinery coatings are constantly increasing, making it difficult for traditional polyurethane paints to meet the requirements of modern agricultural machinery coatings

Method used

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  • A two-component agricultural machinery anti-corrosion decorative finish paint and preparation method thereof
  • A two-component agricultural machinery anti-corrosion decorative finish paint and preparation method thereof
  • A two-component agricultural machinery anti-corrosion decorative finish paint and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] Embodiment 1 prepares YC-1 resin

[0053] 1. YC-1 resin formula

[0054]

[0055]

[0056] 2. YC-1 resin preparation process

[0057] (1) Add pentaerythritol, phthalic anhydride, maleic anhydride, trans-2-butenoic acid, benzoic acid, unsaturated fatty acid, dibutyltin oxide, xylene ( reflux) into the reactor, close the lid of the reactor, take 1-2 hours to raise the temperature to 180±2°C and keep the esterification for 2 hours, and then take 1-2 hours to raise the temperature to 200±2°C to keep the esterification until the acid value is ≤20mgKOH / g (solid ), then lower the temperature to below 140°C and add xylene ① to dilute to obtain the basic alkyd resin for later use.

[0058] (2) Add BPO① and styrene in component 2 into the batching tank according to the formula amount, mix well and set aside.

[0059] (3) Add the homogeneously mixed monomer into the basic alkyd resin, raise the temperature to 140±2°C and keep the copolymerization for 2.5-3 hours, then dir...

Embodiment 2

[0060] Embodiment 2 prepares main paint

[0061] 1. Main paint formula

[0062] Main paint formula

[0063] serial number

raw material name

Specification

Weight (kg)

1

YC-1 resin

self made

74

2

Wetting and dispersing agent

BYK-ATU

0.4

3

Organic bentonite

801-A

0.3

4

Phthalocyanine blue

BS

4.1

5

Titanium dioxide

ATR-312

9.7

6

light yellow powder

surface treatment

0.2

7

Modified filler

self made

5

8

leveling agent

BYK-306

0.3

9

Defoamer

Hemings, 5500

0.4

10

metal drier

Cobalt isooctanoate, isooctanoate

1

[0064]

Manganese equal proportion compound

11

Anti-skinning agent

841

0.2

12

Organotin

10%

0.2

13

DBE

Industrial Qualified

2

14

sec-butyl ester

Industrial Quali...

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PUM

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Abstract

The invention provides double-component decorative finishing coat for agricultural machinery. The finishing coat comprises main paint and a curing agent in a mass ratio of 9:1, wherein the main paint is prepared from the following raw materials in parts by weight: 73-75 parts of YC-1 resin, 0.3-0.5 part of a wetting dispersant, 0.2-0.4 part of organic bentonite, 13-15 parts of pigments, 0.2-0.9 part of an assistant, 1-2 parts of a metal drying agent, 0.1-0.2 part of organic tin, 4-6 parts of a modifying filler, 1-3 parts of a DBE (Dibasic Ester) solvent and 2-2.5 parts of butanol acetate which are mixed. Compared with the conventional acrylic polyurethane coating, the paint disclosed by the invention has high coating fullness, good fresh imaging performance, low toxicity and low price, satisfies or exceeds technical requirements of HG / T4339-2012 (other finishing coat), and is a functional double-component coating.

Description

Technical field: [0001] The invention relates to the field of paints, in particular to a two-component anti-corrosion decorative finish paint for agricultural machinery and a preparation method thereof. Background technique: [0002] The cured coating film of traditional polyurethane paint has excellent chemical resistance, acid resistance, alkali resistance, salt liquid, petroleum products, so it is widely used in chemical anticorrosion, vehicles, wood and other fields. However, polyurethane paint has high prices, and some polyurethane paints contain a lot of free isocyanate, which is harmful to health if inhaled. With the development of my country's machinery industry, the requirements for the cost performance of agricultural machinery coating continue to increase, making it difficult for traditional polyurethane paints to meet the requirements of modern agricultural machinery coating. The invention modifies the alkyd resin with styrene, so that the modified resin (YC-1 r...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D175/14C09D5/08C09D7/12C08F283/01C08F212/08C08G63/49
Inventor 周文杰安宏旭
Owner ANQING LINGHU PAINT
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