CN103980773A - Flame retardant coating for exterior wall - Google Patents

Abstract

The invention discloses a flame retardant coating for exterior wall. The coating which is characterized by comprising the following raw materials by weight: 70-80 parts of an aqueous acrylic emulsion, 20-30 parts of styrene-acrylic emulsion, 10-12 parts of vermiculite powder, 10-12 parts of hydrotalcite powder, 2-3 parts of diphenyl cresol phosphate, 2-3 parts of aluminum hydroxide, 2-3 parts of maleic anhydride-acrylic acid copolymer, 2-3 parts of ethyleneglycol dimethacrylate, 1-2 parts of antimonous oxide, 1-2 parts of gamma-ureidopropyltriethoxysilane, 1-2 parts of polycarbodiimide, 1-2 parts of dodecyl dimethyl betaine, 0.2-0.4 part of tributyl phosphate, 2-3 parts of an auxiliary agent and a proper amount of water. The coating for exterior wall paint provided by the invention has high weather resistance, scrub resistance, strong adhesion, long service life, heat insulation, easiness for construction, can be directly used in exterior wall construction, and has very high covering power effect, so as to effectively save construction time and construction cost.

Description

A kind of flame retardant type exterior coating

Technical field

The present invention relates generally to a kind of coating, relates in particular to a kind of flame retardant type exterior coating.

Background technology

Along with the raising of living standards of the people and the development of society; the selection of people's External Wall coating; not only rest on the most substantially in the protection of ground, more require the construction of coating succinctly convenient simultaneously, require color to keep the lasting high-decoration requirement that waits simultaneously.At present, the exterior coating that China adopts mainly be take ACRYLIC EMULSION as base-material.Water soluble acrylic acid coating has that cost is moderate, weathering resistance is good, adjustable is good, and the advantages such as organic solvent-free release, are development in recent years class coating products very rapidly.

Summary of the invention

The object of the invention is just to provide a kind of flame retardant type exterior coating.

The present invention is achieved by the following technical solutions:

A flame retardant type exterior coating, it is comprised of the raw material of following weight parts:

Aqueous acrylic emulsion 70-80, benzene emulsion 20-30, vermiculite power 10-12, neatly stone flour 10-12, tolyl diphenyl phosphoester 2-3, aluminium hydroxide 2-3, copolymer of maleic anhydride and acrylic acid 2-3, Ethylene glycol dimethacrylate 2-3, antimonous oxide 1-2, urea groups propyl-triethoxysilicane 1-2, polycarbodiimide 1-2, Varion CDG-K 1-2, tributyl phosphate 0.2-0.4, auxiliary agent 2-3, water are appropriate;

Described auxiliary agent is comprised of the raw material of following weight parts: PET resin 10-20, polyamide wax micropowder 3-5, butyl polyacrylate 2-3, peroxidation tert-butyl acetate 0.3-0.4, polyoxyethylene nonylphenol ether NP-40.1-0.2; Polyoxyethylene nonylphenol ether NP-4 steam heating, to 60-70 ℃, is added to butyl polyacrylate, and insulation reaction 10-15 minute, adds PET resin, and normal temperature 100-200 rev/min of dispersed with stirring 2-4 minute adds each raw material of residue, stirs.

A preparation method for exterior coating, comprises the following steps:

Above-mentioned neatly stone flour is mixed with vermiculite power, join in benzene emulsion, stirring heating 30-40 minute at 100-120 ℃, add tolyl diphenyl phosphoester, aluminium hydroxide, cooling normal temperature after fully stirring, add Varion CDG-K, 600-700 rev/min of dispersed with stirring 3-5 minute, add polycarbodiimide, insulation reaction 1-2 hour at 90-100 ℃, be cooled to normal temperature, add urea groups propyl-triethoxysilicane, fully stir, add again each raw material of residue, 600-700 rev/min of dispersed with stirring 1-2 hour, be cooled to normal temperature, adjusting PH is 7-8, obtain described coating.

Advantage of the present invention is:

Exterior coating of the present invention has high weather resisteant, brushing resistance, strong adhesion, long service life, and insulation, easily construction can directly be constructed when external wall construction, have very high opacifying power effect, thereby can effectively save engineering time and construction cost.

Embodiment

Embodiment 1

A flame retardant type exterior coating, it is comprised of the raw material of following weight parts:

Aqueous acrylic emulsion 80, benzene emulsion 30, vermiculite power 12, neatly stone flour 12, tolyl diphenyl phosphoester 3, aluminium hydroxide 3, copolymer of maleic anhydride and acrylic acid 3, Ethylene glycol dimethacrylate 2, antimonous oxide 1, urea groups propyl-triethoxysilicane 2, polycarbodiimide 2, Varion CDG-K 1, tributyl phosphate 0.4, auxiliary agent 2, water are appropriate;

Described auxiliary agent is comprised of the raw material of following weight parts: PET resin 20, polyamide wax micropowder 5, butyl polyacrylate 3, peroxidation tert-butyl acetate 0.4, polyoxyethylene nonylphenol ether NP-40.2; By polyoxyethylene nonylphenol ether NP-4 steam heating to 70 ℃, add butyl polyacrylate, insulation reaction 15 minutes, adds PET resin, and 200 revs/min of dispersed with stirring of normal temperature 4 minutes add each raw material of residue, stir.

A preparation method for exterior coating, comprises the following steps:

Above-mentioned neatly stone flour is mixed with vermiculite power, join in benzene emulsion, at 120 ℃, stirring heating is 40 minutes, add tolyl diphenyl phosphoester, aluminium hydroxide, cooling normal temperature after fully stirring, adds Varion CDG-K, 700 revs/min of dispersed with stirring 5 minutes, add polycarbodiimide, at 100 ℃, insulation reaction is 1 hour, is cooled to normal temperature, adds urea groups propyl-triethoxysilicane, fully stir, add each raw material of residue, 700 revs/min of dispersed with stirring 2 hours, are cooled to normal temperature again, regulating PH is 8, obtains described coating.

Artificial ageing resistance test: 2000 hours non-foaming, do not peel off, flawless;

Temperature-change resistance (5 circulations): without abnormal;

Alkali resistance: 200 hours without abnormal;

Water tolerance: 100 hours without abnormal;

Contamination resistance :≤5%;

Time of drying: < 1.5 hours.

Claims (2)

1. a flame retardant type exterior coating, is characterized in that what it was comprised of the raw material of following weight parts:

Aqueous acrylic emulsion 70-80, benzene emulsion 20-30, vermiculite power 10-12, neatly stone flour 10-12, tolyl diphenyl phosphoester 2-3, aluminium hydroxide 2-3, copolymer of maleic anhydride and acrylic acid 2-3, Ethylene glycol dimethacrylate 2-3, antimonous oxide 1-2, urea groups propyl-triethoxysilicane 1-2, polycarbodiimide 1-2, Varion CDG-K 1-2, tributyl phosphate 0.2-0.4, auxiliary agent 2-3, water are appropriate;

Described auxiliary agent is comprised of the raw material of following weight parts: PET resin 10-20, polyamide wax micropowder 3-5, butyl polyacrylate 2-3, peroxidation tert-butyl acetate 0.3-0.4, polyoxyethylene nonylphenol ether NP-40.1-0.2; Polyoxyethylene nonylphenol ether NP-4 steam heating, to 60-70 ℃, is added to butyl polyacrylate, and insulation reaction 10-15 minute, adds PET resin, and normal temperature 100-200 rev/min of dispersed with stirring 2-4 minute adds each raw material of residue, stirs.

2. a preparation method for exterior coating as claimed in claim 1, is characterized in that comprising the following steps:

Above-mentioned neatly stone flour is mixed with vermiculite power, join in benzene emulsion, stirring heating 30-40 minute at 100-120 ℃, add tolyl diphenyl phosphoester, aluminium hydroxide, cooling normal temperature after fully stirring, add Varion CDG-K, 600-700 rev/min of dispersed with stirring 3-5 minute, add polycarbodiimide, insulation reaction 1-2 hour at 90-100 ℃, be cooled to normal temperature, add urea groups propyl-triethoxysilicane, fully stir, add again each raw material of residue, 600-700 rev/min of dispersed with stirring 1-2 hour, be cooled to normal temperature, adjusting PH is 7-8, obtain described coating.