CN104059450A - High-temperature-resistant radiating coating - Google Patents

Abstract

The invention discloses a high-temperature-resistant radiating coating which is prepared from the following raw materials in parts by weight: 60-90 parts of ethyl acetate, 1-2 parts of silicon nitride, 50-60 parts of epoxy acrylate resin, 5-7 parts of melamine formaldehyde resin, 4-6 parts of nanosilicon dioxide, 0.1-0.2 part of wool fat, 1-2 parts of ammonium molybdate, 1-2 parts of ferrocene, 1-2 parts of butyl acrylate, 0.2-0.5 part of polycarbonate, 1-2 parts of aluminum oxide and 5-10 parts of high-temperature-resistant modified resin. By compounding various resins and added raw materials, the high-temperature-resistant characteristic of the radiating coating can be remarkably improved, and the film is lasting, resistant to high temperature and long in service life.

Description

A kind of high temperature resistant heat radiation coating

Technical field

The present invention relates to heat radiation coating field, is exactly a kind of high temperature resistant heat radiation coating.

Background technology

Heat radiation coating is a kind of radiating efficiency that improves body surface, reduces the speciality coating of system temperature.Heat radiation coating is by improving body surface radiation efficiency (particularly improving ir radiation efficiency), strengthening object heat dispersion.

Summary of the invention

The object of the present invention is to provide a kind of high temperature resistant heat radiation coating.

Above-mentioned purpose realizes by following scheme:

A high temperature resistant heat radiation coating, is characterized in that: it is that raw material by following weight parts makes:

Ethyl acetate 60-90, silicon nitride 1-2, epoxy acrylic resin 50-60, terpolycyantoamino-formaldehyde resin 5-7, nano silicon 4-6, lanolin 0.1-0.2, ammonium molybdate 1-2, ferrocene 1-2, butyl acrylate 1-2, polycarbonate 0.2-0.5, aluminium sesquioxide 1-2, heat resist modification resin 5-10;

Described heat resist modification resin is made by the raw material of following weight parts:

Silicone resin 35-45, zinc oxide 2-4, pentanoic 1-2, amine curing agent 3-5, Graphite Powder 99 2.8-3.5, propylene glycol 4-6, expanded vermiculite powder 1-2, calcium silicate powder 3-5, urotropine 1-2, nano silicon 3-5, acetone 30-40;

The preparation method of described heat resist modification resin is:

(1) after taking by weight silicone resin, calcium silicate powder, nano silicon and mixing, at 55-65 ℃, under the speed of 600-800r/min, stir 1-1.5 hour;

(2), after above-mentioned material is mixed with all the other raw materials, the speed with 800-900r/min at 60-70 ℃ stirs 20-30 minute, obtains.

Described a kind of high temperature resistant heat radiation coating, is characterized in that: preparation method comprises the following steps:

(1) epoxy acrylic resin, lanolin, butyl acrylate, ethyl acetate are mixed, be heated to 70-80 ℃, stirring reaction 1-2 hour under the speed of 700-900r/min;

(2) add again other surplus stocks to stir, while being ground to 40-50 μ m after, obtain.

During construction, heat radiation coating spraying application is dried 1 hour at 60 ℃, gets final product film forming, makes 80-100 μ m heat radiation coating.

Beneficial effect of the present invention is: the present invention adopts various resins and add raw material composite, can obviously improve the high-temperature stability of heat radiation coating, high temperature resistant, the long service life lastingly of filming.

Embodiment

A high temperature resistant heat radiation coating, it is that raw material by following weight kg makes:

Ethyl acetate 90, silicon nitride 2, epoxy acrylic resin 60, terpolycyantoamino-formaldehyde resin 7, nano silicon 6, lanolin 0.2, ammonium molybdate 2, ferrocene 2, butyl acrylate 1, polycarbonate 0.5, aluminium sesquioxide 2, heat resist modification resin 8;

Described heat resist modification resin is made by the raw material of following weight kg:

Silicone resin 45, zinc oxide 4, pentanoic 2, amine curing agent 5, Graphite Powder 99 2.8, propylene glycol 6, expanded vermiculite powder 2, calcium silicate powder 5, urotropine 2, nano silicon 5, acetone 40;

The preparation method of described heat resist modification resin is:

(1) after taking by weight silicone resin, calcium silicate powder, nano silicon and mixing, at 65 ℃, under the speed of 800r/min, stir 1.5 hours;

(2), after above-mentioned material is mixed with all the other raw materials, the speed with 900r/min at 70 ℃ stirs 25 minutes, obtains.

Described a kind of high temperature resistant heat radiation coating, preparation method comprises the following steps:

(1) epoxy acrylic resin, lanolin, butyl acrylate, ethyl acetate are mixed, be heated to 80 ℃, under the speed of 900r/min, stirring reaction is 2 hours;

(2) add again other surplus stocks to stir, while being ground to 40-50 μ m after, obtain.

During construction, heat radiation coating spraying application is dried 1 hour at 60 ℃, gets final product film forming, makes 80-100 μ m heat radiation coating.

The heat radiation coating direct spraying that embodiment is made, on the process glass lamp cleaning up, obtains following experimental data:

Heatproof test: after 210 ℃/3h of baking oven baking, baking oven toasts glass lamp after 145 ℃/15 days and coats color and luster without considerable change;

Uvioresistant test: uviolizing 4h, not shedding of coating is non-yellowing, artificial accelerated aging test under 135 ℃ and 270W ultraviolet light irradiation condition, 5521 hours ageing-resistant time;

270 ℃ of heatproof high temperature, bonding shearing force 24.5MPa, thermal conductivity 312W/(mK).

Claims (2)

1. a high temperature resistant heat radiation coating, is characterized in that: it is that raw material by following weight parts makes:

Ethyl acetate 60-90, silicon nitride 1-2, epoxy acrylic resin 50-60, terpolycyantoamino-formaldehyde resin 5-7, nano silicon 4-6, lanolin 0.1-0.2, ammonium molybdate 1-2, ferrocene 1-2, butyl acrylate 1-2, polycarbonate 0.2-0.5, aluminium sesquioxide 1-2, heat resist modification resin 5-10;

Described heat resist modification resin is made by the raw material of following weight parts:

Silicone resin 35-45, zinc oxide 2-4, pentanoic 1-2, amine curing agent 3-5, Graphite Powder 99 2.8-3.5, propylene glycol 4-6, expanded vermiculite powder 1-2, calcium silicate powder 3-5, urotropine 1-2, nano silicon 3-5, acetone 30-40;

The preparation method of described heat resist modification resin is:

(1) after taking by weight silicone resin, calcium silicate powder, nano silicon and mixing, at 55-65 ℃, under the speed of 600-800r/min, stir 1-1.5 hour;

(2), after above-mentioned material is mixed with all the other raw materials, the speed with 800-900r/min at 60-70 ℃ stirs 20-30 minute, obtains.

2. a kind of high temperature resistant heat radiation coating according to claim 1, is characterized in that: preparation method comprises the following steps:

(1) epoxy acrylic resin, lanolin, butyl acrylate, ethyl acetate are mixed, be heated to 70-80 ℃, stirring reaction 1-2 hour under the speed of 700-900r/min;

(2) add again other surplus stocks to stir, while being ground to 40-50 μ m after, obtain.