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Casting-grade PVC decorative film and preparation method thereof

A film and functional layer technology, which is applied in the field of casting grade PVC decorative film and its preparation, can solve the problems of poor forming performance, poor dimensional stability, easy precipitation of small molecules, etc., and achieve improved tensile properties and toughness, high toughness and tensile strength, the effect of simple processing

Inactive Publication Date: 2022-04-12
南通百纳数码新材料有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the domestic PVC car film mainly adopts calendering technology. The film produced by this technology is thicker and has poor dimensional stability. Easy to precipitate small molecules, making the membrane brittle
Domestic foundry-grade technology is mainly used in TPU raw materials. TPU car coverings have strong impact resistance and high low temperature resistance, but TPU car coverings have too high hardness and poor formability. However, domestic foundry-grade PVC mainly has difficulty in controlling the coating process, and the surface of the film is Bubbles, inhomogeneity, poor tensile fracture performance of the film

Method used

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  • Casting-grade PVC decorative film and preparation method thereof

Examples

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Comparison scheme
Effect test

Embodiment 1

[0027] The preparation method of the casting-grade car film is shown in process step 2, without adding a pressure-sensitive adhesive layer, and the steps are as follows:

[0028] Step 1: Preparation of functional layer: Dissolve polyvinyl chloride powder in an organic solvent, add toughening agent SBS, plasticizer, colorant, stabilizer, UV-resistant additive, dispersant and other additives, fully stir and heat Coating is performed on release paper after vibration, and forced drying is performed after coating.

[0029] Step 2: Prepare the protective layer: dissolve polyvinyl chloride powder in an organic solvent, mix plasticizers, stabilizers and other additives, heat and vibrate, and coat the dried functional layer. After coating Force dry.

[0030] Wherein, the mass ratio of PVC powder, solvent, plasticizer, SBS, colorant, stabilizer and auxiliary agent in the functional layer described in step 1 is 10:75:9:1:3:0.2:1.8; The mass ratio of PVC powder, solvent, plasticizer and...

Embodiment 2

[0043] Except that the mass ratio of PVC powder, solvent, plasticizer, TPU, colorant, stabilizer, and auxiliary agent in the functional layer prepared in step 1 is 9:75:8:3:3:0.2:1.8, other conditions are the same Example 1.

Embodiment 3

[0045]Except that the mass ratio of PVC powder, solvent, plasticizer, colorant, stabilizer, and auxiliary agent in the preparation of the functional layer in step 1 is 11:75:9:3:0.2:1.8, other conditions are the same as in Example 1. White film, without toughener SBS and TPU.

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Abstract

The invention discloses a casting-grade PVC (polyvinyl chloride) decorative film and a preparation method thereof, the PVC decorative film is sequentially provided with release paper and a pressure-sensitive adhesive layer, and a functional layer is arranged on the pressure-sensitive adhesive layer. The functional layer is a PVC (polyvinyl chloride) film layer, a protective layer is arranged above the functional layer, and an air guide pattern is arranged on the release paper. The processing technology is simple, the processing technologies of a color layer, a reverse color layer and the like are omitted, the film is prepared by adopting a coating technology, and tests show that the film is relatively thin, has relatively high toughness and tensile strength, is easy to operate during film pasting, and is not easy to cause an edge warping phenomenon.

Description

technical field [0001] The invention relates to the technical field of PVC decorative film, in particular to a casting-grade PVC decorative film and a preparation method thereof. Background technique [0002] At present, with the continuous growth of the automobile industry in the Chinese market, especially the rise of the car body color change market, more and more people like to make cars have personalized pictures or personalized colors. At the same time, the car cover can also play a role in heat insulation and blocking ultraviolet rays. Car covers sold on the market mainly use films such as PVC, TPU, PE, and CPP. Among them, PVC has the advantages of good corrosion resistance, flexibility, weather resistance, and long storage time, and is widely used in the automotive film industry. The processing technology of PVC car film mainly includes calendering grade and casting grade. The production process of calendered car film is mainly to mix and melt the raw materials to...

Claims

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Application Information

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IPC IPC(8): C09J7/24C08L27/06C08L75/04C08L53/02C08J5/18
Inventor 耿飞
Owner 南通百纳数码新材料有限公司
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