Environment-friendly PVC decorative color film and preparation method thereof

Abstract

The invention discloses an environment-friendly PVC decorative color film and a preparation method thereof. The environment-friendly PVC decorative color film comprises the components in parts by weight: 100 parts of PVC resin, 14-24 parts of DOTP, 4-6 parts of epoxidized soybean oil, 2-2.6 parts of liquid barium and zinc, 0.3-0.5 part of powdery barium and zinc, 0.5-0.9 part of a stabilizer, 10-30 parts of superfine activated calcium and 1-2 parts of a coloring agent. The preparation comprises the steps: (1) weighing the components according to the formula; (2) stirring and mixing the components, and then cooling to obtain a mixed material; (3) plasticizing the mixed material, and then extruding; and (4) calendering the material extruded in the step (3), stretching, embossing, cooling andshaping, and finally packaging to obtain a finished product. By changing a mixed material formula system, the color stability of the product is improved, the first-pass yield of the finished productis ensured, the material loss is reduced, and the input-output rate is increased; the method has the advantages of mild preparation conditions, low requirements on equipment and low cost, and is suitable for industrial batch production.

Description

technical field [0001] The invention relates to the field of PVC film production, in particular to an environment-friendly PVC decorative color film and a preparation method thereof. Background technique [0002] Environmentally friendly color film is a new type of decorative material made of high molecular polymer (PVC), adding various additives, calendering, compounding and printing. It can be used with wood, plastic boards, aluminum boards, iron boards and other It is widely used in household appliances, audio surface decoration, interior decoration, interior decoration of airplanes, ships and trains, and can also be used for billboards and so on. It is characterized by realistic lines, which can completely imitate the appearance of any desired item to achieve the effect of "disgusting the real". It can be composited on uneven substrates to solve the problem that large-area curved surfaces are difficult to solve with ordinary printing technology. The surface of the envir...

AI Technical Summary

Problems solved by technology

[0003] With the improvement of environmental protection requirements, all raw materials are required to be non-toxic. The use of non-toxic calcium-zinc or low-toxic barium-zinc stabilized system and PVC semi-rigid film high temperature molding will easily lead to color difference in the film batch, which cannot meet the large orders of customers. No color difference in the batch Deficiencies in the requirements

The original technical solution is a composite barium-zinc stabilizer and epoxy ester mixed synergistic system, but when the production equipment fails briefly or other factors change the residence time of the material, the color difference within the batch will be caused