A kind of matte PC coiled material and preparation method thereof

Abstract

The invention relates to a matte PC membrane, which is characterized in that the matte effect is realized by coating a coating liquid on a PC surface. The coating liquid comprises by weight 60-120 parts of UV active monomer, 10-30 parts of UV curing epoxy acrylate, 100 parts of an extinction powder and 1-12 parts of a photoinitiator. A continuous production method of the PC coiled material comprises steps of: selecting PC sheet; unwinding; coating the coating liquid; curing the UV; and finally rolling up to obtain a matte PC coiled material. The invention has the following characteristics: uniform matte shape and effect can effectively reduce high light on the object surface; continuous coating of PC sheet is realized to reduce production cost; and the PC sheet is turned into a coil material, so as to facilitate further cutting and utilization by customers, reduce waste and save usage cost of the customers.

Description

technical field [0001] The invention relates to the field of polycarbonate films, in particular, the invention relates to frosted PC coils and a preparation method thereof. Background technique [0002] Polycarbonate (referred to as PC) is a high molecular polymer containing carbonate groups in the molecular chain. Polycarbonate is a non-crystalline resin. It has good dimensional accuracy during molding. It is deformed by external force and does not change significantly after absorbing water. Therefore, it has excellent dimensional accuracy and stability and is suitable as a material for precision molding. The operating temperature range is -40°C~+120°C, it can be used in a wide range, and the mechanical properties also change linearly within this range, so it is very beneficial to the strength design. Among engineering plastics, it is a variety with excellent impact resistance, and it has impact resistance equivalent to that at room temperature even in a low-temperature en...

AI Technical Summary

Problems solved by technology

[0004] At present, some domestic enterprises are producing frosted PC sheets, but the production technology is relatively backward, and the single-piece production method is adopted, that is, spraying on the pre-cut single-piece PC, surface treatment materials, and pattern rollers. Pressing, and then UV curing to produce finished products, the scrap rate is very high in the production process

Moreover, in the process of customer use, since it is a single-piece sheet, the size of the sheet has been fixed. When the customer cuts different specifications and sizes, it cannot make the best use of it, which increases the cost of use for the customer.

[0005] At the same time, in the process of single-piece production, the frosting effect is achieved by the different shapes of the patterned rollers, and the patterned rollers will be worn during actual use, which will cause inconsistencies in the frosted shape during the production process

Moreover, the patterned rollers with the same requirements will not be consistent during the production process, which will also cause inconsistencies in the frosted shape

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