阅读说明：本技术 一种玻璃基底用发热涂层材料及其制备方法 (Heating coating material for glass substrate and preparation method thereof ) 是由 周文炳 吴慎将 周政 王馨梅 周迪 邱锦芬 于 2020-05-22 设计创作，主要内容包括：本发明公开了一种玻璃基底用发热涂层,包括玻璃基底和发热涂层,所述发热涂层包括如下重量份的组分：树脂30-50份、氧化石墨烯2-10份、硬质陶土10-20份、云母粉5-10份、有机溶剂8-12份、松油醇8～16份、玻璃粉2-8份、聚乙烯3-5份、乙基纤维素6-8份、二氧化钛14-16份。本发明属于玻璃基底发热涂层材料制备技术领域,具体是提供了一种工作稳定性高,与玻璃基底的吸附性好且发热涂层不易从玻璃基底上脱落的玻璃基底用发热涂层材料及其制备方法。(The invention discloses a heating coating for a glass substrate, which comprises the glass substrate and the heating coating, wherein the heating coating comprises the following components in parts by weight: 30-50 parts of resin, 2-10 parts of graphene oxide, 10-20 parts of hard pottery clay, 5-10 parts of mica powder, 8-12 parts of organic solvent, 8-16 parts of terpineol, 2-8 parts of glass powder, 3-5 parts of polyethylene, 6-8 parts of ethyl cellulose and 14-16 parts of titanium dioxide. The invention belongs to the technical field of preparation of heating coating materials of glass substrates, and particularly provides a heating coating material for a glass substrate, which has high working stability, good adsorbability with the glass substrate and difficulty in falling off of a heating coating from the glass substrate, and a preparation method thereof.)

1. The heating coating for the glass substrate is characterized by comprising the glass substrate and the heating coating, wherein the heating coating comprises the following components in parts by weight: 30-50 parts of resin, 2-10 parts of graphene oxide, 10-20 parts of hard pottery clay, 5-10 parts of mica powder, 8-12 parts of organic solvent, 8-16 parts of terpineol, 2-8 parts of glass powder, 3-5 parts of polyethylene, 6-8 parts of ethyl cellulose and 14-16 parts of titanium dioxide.

2. The heat-generating coating material for a glass substrate according to claim 1, wherein the heat-generating coating layer comprises the following components in parts by weight: 40 parts of resin, 6 parts of graphene oxide, 15 parts of hard pottery clay, 7.5 parts of mica powder, 10 parts of organic solvent, 12 parts of terpineol, 5 parts of glass powder, 4 parts of polyethylene, 7 parts of ethyl cellulose and 15 parts of titanium dioxide.

3. The heat-generating coating material for glass substrates according to claim 1, characterized in that: the resin is a hydrophobic resin.

4. The heat-generating coating material for glass substrates according to claim 1, characterized in that: the organic solvent is a mixed solution composed of butyl acetate, n-butanol and xylene according to the mass ratio of 1: 2.

5. A preparation method of a heating coating material for a glass substrate is characterized by comprising the following steps:

(1) weighing the components according to the weight parts of the components;

(2) mixing graphene oxide, hard argil, mica powder, terpineol, glass powder, polyethylene, ethyl cellulose and titanium dioxide according to a proportion to obtain a mixture, and putting the mixture into a grinding machine to grind for 1-1.5h at 4200-;

(3) adding resin and an organic solvent into the grinding mixture obtained in the step (2), gradually raising the temperature of the grinding mixture to 60-80 ℃, and stirring the grinding mixture until the mixture is uniformly stirred and no bubbles are generated on the surface of the mixture, so as to obtain heating slurry;

(4) carrying out ultrasonic surface cleaning and deoiling treatment on a glass substrate, uniformly coating heating slurry on the glass substrate, drying the glass substrate and the heating slurry by using a vacuum drier, raising the temperature in the vacuum drier to 800-1000 ℃, setting the vacuum degree to be lower than 400Pa, keeping the vacuum degree for 4-5h, injecting inert gas into the vacuum drier for 5-10h, taking out the glass substrate, and cooling to room temperature.

Technical Field

The invention belongs to the technical field of preparation of heating coating materials for glass substrates, and particularly relates to a heating coating material for a glass substrate and a preparation method thereof.

Background

Quartz glass is an amorphous material with a single component of silica, and its microstructure is a simple network composed of silica tetrahedral structural units. Since Si — O chemical bonds are very large in energy and very compact in structure, the quartz glass has unique properties, especially excellent optical properties of transparent quartz glass, and excellent transmittance in a continuous wavelength range from ultraviolet to infrared radiation. The formation of quartz glass is a result of its high-temperature viscosity of the melt. The method is used for manufacturing semiconductors, electric light sources, semiconductor communication devices, lasers, optical instruments, laboratory instruments, electrical equipment, medical equipment, high-temperature-resistant and corrosion-resistant chemical instruments, chemical industry, electronics, metallurgy, building materials, national defense and other industries, and is very wide in application.

Quartz glass is often used as a base material of the heating element, including a heating element using a heating wire, a xenon lamp, or the like as the heating element in a quartz tube. However, such heating bodies are used in the field of industrial heating, and have the disadvantages of light radiation attenuation, low heat radiation efficiency and the like; in order to overcome the problem, the method provided by the prior art is to coat the heating slurry on the quartz glass substrate, which avoids the low radiation efficiency of the heating coating on the air convection radiation, but because the interface bonding force between the glass substrate and the heating coating is weak and the adsorptivity is not high, the coating is easy to fall off in the working process, especially under the condition of rapid temperature rise and rapid temperature decrease.

Disclosure of Invention

In order to solve the existing problems, the invention provides a heating coating material for a glass substrate, which has high working stability, good adsorptivity with the glass substrate and difficult falling of a heating coating from the glass substrate, and a preparation method thereof.

The technical scheme adopted by the invention is as follows: the heating coating for the glass substrate comprises the glass substrate and the heating coating, wherein the heating coating comprises the following components in parts by weight: 30-50 parts of resin, 2-10 parts of graphene oxide, 10-20 parts of hard pottery clay, 5-10 parts of mica powder, 8-12 parts of organic solvent, 8-16 parts of terpineol, 2-8 parts of glass powder, 3-5 parts of polyethylene, 6-8 parts of ethyl cellulose and 14-16 parts of titanium dioxide.

Preferably, the heat-generating coating comprises the following components in parts by weight: 40 parts of resin, 6 parts of graphene oxide, 15 parts of hard pottery clay, 7.5 parts of mica powder, 10 parts of organic solvent, 12 parts of terpineol, 5 parts of glass powder, 4 parts of polyethylene, 7 parts of ethyl cellulose and 15 parts of titanium dioxide.

Furthermore, the resin is hydrophobic resin, and the arrangement of the hydrophobic resin can increase the adhesion of the heating coating to the glass substrate and provide good interlayer adhesion.

Further, the organic solvent is a mixed solution of butyl acetate, n-butanol and xylene according to the mass ratio of 1: 2.

A method for preparing a heat-generating coating material for a glass substrate comprises the following steps:

(1) weighing the components according to the weight parts of the components;

(2) mixing graphene oxide, hard argil, mica powder, terpineol, glass powder, polyethylene, ethyl cellulose and titanium dioxide according to a proportion to obtain a mixture, and putting the mixture into a grinding machine to grind for 1-1.5h at 4200-;

(3) adding resin and an organic solvent into the grinding mixture obtained in the step (2), gradually raising the temperature of the grinding mixture to 60-80 ℃, and stirring the grinding mixture until the mixture is uniformly stirred and no bubbles are generated on the surface of the mixture, so as to obtain heating slurry;

(4) carrying out ultrasonic surface cleaning and deoiling treatment on a glass substrate, coating the heating slurry on the glass substrate, drying the glass substrate and the heating slurry by using a vacuum drier, raising the temperature in the vacuum drier to 800-1000 ℃, setting the vacuum degree to be lower than 400Pa, keeping the vacuum degree for 4-5h, injecting inert gas into the vacuum drier for 5-10h, taking out the glass substrate, and cooling to room temperature.

The invention has the following beneficial effects: according to the invention, the surface adsorbability is increased by firstly carrying out deoiling treatment on the glass substrate, the adhesion of the heating coating to the glass substrate can be increased by arranging the hydrophobic resin, good interlayer adhesion is provided, the expansion coefficient of the glass powder is similar to that of the glass substrate, so that the heating coating can better permeate into the glass substrate, and the working stability is improved.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.