Polycarbonate film applied to speaker network for electronic appliances and manufacturing method thereof

Abstract

The invention relates to a polycarbonate film and a manufacturing method thereof, in particular to a polycarbonate film applied to a speaker network for electronic appliances and a manufacturing method thereof. The polycarbonate film applied to the speaker network comprises polycarbonate and an inorganic filling agent, other auxiliary agents and a dispersing agent; the polycarbonate is aromatic polycarbonate; the inorganic filling agent is talcum powder, and the content of the inorganic filling agent is 0.01 percent to 10 percent of the weight of the polycarbonate; the other auxiliary agents are a heat stabilizing agent and a mould releasing agent and the content thereof is 0.01 percent to 10 percent of the weight of the polycarbonate; and the content of the dispersing agent is 0.01 percent to 10 percent of the weight of the polycarbonate. The manufacturing method thereof comprises the following steps: 1. mechanical premixing; 2. fusing and mixing; 3. cooling and granulating; and 4. extruding and molding. The invention properly reduces the impact resistance of the polycarbonate film so as to be easy to punch holes and removing burrs and the like.

Description

Technical field: [0001] The invention relates to a polycarbonate film and a manufacturing method thereof, in particular to a polycarbonate film applied to horn nets for electronic appliances and a manufacturing method thereof. Background technique: [0002] Polycarbonate (polycarbonate referred to as "PC") film to replace metal aluminum, iron materials as plastic speaker nets for TVs, stereos, portable DVDs, and laptops is a common trend now. The main advantages of using PC for speaker nets are as follows: 1. The processing technology is simple, the cost is low, and the aperture range of the speaker net is wider; 2. The appearance is bright in color and has a good surface gloss, which is beautiful and generous. 3. Good formability, light weight, and environmental protection; 4. The surface color can be manufactured according to customer needs. The back can be equipped with dust-proof gauze and various double-sided adhesive tape; 5. Transparent, semi-transparent and completel...

AI Technical Summary

Problems solved by technology

[0004] Films processed from polycarbonate resins have been widely used in various fields, especially in the electrical and electronic industry. Films processed from ordinary polycarbonate substrates have the same high impact resistance as themselves. The application field has been affected to a certain extent, mainly reflected in the demand for meshes with small apertures below ∮0.5mm. In the cold stamping process, the toughness of the material is too high, resulting in out-of-round punched apertures or punched holes with many The burr affects the surface quality of the speaker net and the downstream production process, such as cutting, printing, etc.

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