Composite material for audio and video equipment casing, preparation method, and audio and video equipment

A composite material, audio and video technology, applied in the field of polymer materials, can solve problems such as harmful to the health of operators, failure to assemble the whole machine with the shell, and endanger the production environment, etc., to achieve excellent appearance, improve heat resistance, and reduce linear expansion coefficient Effect
CN105820487BActive Publication Date: 2019-04-05HISENSE VISUAL TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
HISENSE VISUAL TECH CO LTD
Publication Date
2019-04-05

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Abstract

The invention discloses a composite material used for a casing of audio and video equipment as well as a preparation method, and audio and video equipment. The composite material comprises components in parts by weight as follows: 80-95 parts of high impact polystyrene HIPS, 2-10 parts of talc powder, 10-20 parts of fire retardant, 1-2 parts of metallic oxide smoke suppressor, 3-5 parts of antioxidant, and 1-3 parts of lubricant. The preparation method is as follows: the talc powder, the HIPS and the lubricant are sequentially added into a high-speed mixer and stirred evenly, and the fire retardant, the antioxidant and the metallic oxide smoke suppressor are then sequentially added and stirred evenly; extrusion is performed by a double-screw extruder, and the material used for the casing of the audio and video equipment is obtained after steps including water-cooling, grain-sized dicing, sieving and drying. Through the combination of the superfine talc powder and a polystyrene molecular chain, the after-shrinkage of the plastic casing is effectively suppressed, and performance of the plastic casing is improved.
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Description

technical field

[0001] The invention belongs to the technical field of polymer materials, and in particular relates to a composite material suitable for audio and video equipment shells and a preparation method thereof, and audio and video equipment using the composite material as the shell material. Background technique

[0002] Audio and video equipment, including audio and video recording, playback and processing equipment in various carrier forms, such as TV, computer, stereo, etc. Most of the shells of audio and video equipment use polymer composite materials, such as PC (polycarbonate), ABS (acrylic acid), etc. Nitrile-butadiene-styrene), HIPS (polystyrene), etc., require the shell material to have certain strength, flame retardancy, weather resistance and aesthetics.

[0003] With the international business expansion of the home appliance industry, China's audio and video equipment is exported to most markets in the world, such as Europe and the United States. Some ho...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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