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PET protective film having good wear resistance and strong impact resistance and preparation technology thereof

A technology of impact resistance and wear resistance, applied in the field of PET protective film and its production process, can solve the problem that the protective film has poor wear resistance and anti-scratch performance, the protective film is difficult to play an anti-impact effect, and the damage is not enough. To the protection effect and other issues, to achieve good flexibility and elasticity, improve hardness, improve gloss effect

Active Publication Date: 2014-02-26
东莞市尼的科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] There are many types of protective films on the market, but they are only used to prevent scratches on the shell or the screen itself. They have a single function and cannot protect against damage under harsh conditions. For example, when people use handheld mobile phones, it is inevitable that there will be movement. When the phone is dropped, the screen will be subjected to a great impact, but the existing protective film is difficult to resist the impact
In addition, the wear resistance and anti-scratch performance of the existing protective film itself is not good. After a long time, the protective film itself will be worn and scratched, which greatly affects the use effect

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] A PET protective film with good wear resistance and strong impact resistance, comprising a PET base layer, the lower surface of the PET base layer is provided with an adhesive layer and a PET release layer, and the PET base layer consists of the following parts by weight Raw material composition:

[0048] PET particles 85 parts

[0049] Nano silicon dioxide 0.5 parts

[0050] Nano titanium dioxide 0.1 parts

[0051]Methacrylic acid-butadiene-styrene copolymer 2 parts

[0052] 1 part of isopropyl tris(dodecylbenzenesulfonyl) titanate.

[0053] The raw materials of the adhesive layer are made of glue R303, glue CY-10, water, and glue PS08B with a weight ratio of 10:2:10:8. The glue R303 is a polyurethane two-component glue produced by Guangzhou Runze Chemical Co., Ltd. , Glue CY-10 is a special glue for low-viscosity PET protective tape of Beijing Decheng Industry and Trade Co., Ltd., and glue PS08B is a special water-based glue for bright anti-yellowing protective fi...

Embodiment 2

[0061] A PET protective film with good wear resistance and strong impact resistance, comprising a PET base layer, the lower surface of the PET base layer is provided with an adhesive layer and a PET release layer, and the PET base layer consists of the following parts by weight Raw material composition:

[0062] PET particles 95 parts

[0063] Nano silicon dioxide 1 part

[0064] Nano titanium dioxide 0.2 parts

[0065] Methacrylic acid-butadiene-styrene copolymer 4 parts

[0066] 3 parts of isopropyl tris(dodecylbenzenesulfonyl) titanate.

[0067] The raw materials of the adhesive layer are made of glue R303, glue CY-10, water, and glue PS08B with a weight ratio of 10:5:10:10. The glue R303 is a polyurethane two-component glue produced by Guangzhou Runze Chemical Co., Ltd. , Glue CY-10 is a special glue for low-viscosity PET protective tape of Beijing Decheng Industry and Trade Co., Ltd., and glue PS08B is a special water-based glue for bright anti-yellowing protective fi...

Embodiment 3

[0075] A PET protective film with good wear resistance and strong impact resistance, comprising a PET base layer, the lower surface of the PET base layer is provided with an adhesive layer and a PET release layer, and the PET base layer consists of the following parts by weight Raw material composition:

[0076] PET particles 85 parts

[0077] Nano silicon dioxide 0.5 parts

[0078] Nano titanium dioxide 0.1 parts

[0079] Methacrylic acid-butadiene-styrene copolymer 2 parts

[0080] 1 part of isopropyl tris(dodecylbenzenesulfonyl) titanate.

[0081] The upper surface of the PET substrate layer is also provided with an anti-shock layer, and the anti-shock layer is made up of the following raw materials in parts by weight:

[0082] 25 parts of 2-ethyl ethyl acrylate

[0083] Lauryl alcohol ester 10 parts

[0084] 75 parts of ethyl acetate

[0085] Azobisisobutyronitrile 0.5 parts.

[0086] The raw materials of the adhesive layer are made of glue R303, glue CY-10, water,...

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Abstract

The invention relates to the technical field of protective films and especially relates to a PET protective film having good wear resistance and strong impact resistance and a preparation technology thereof. The PET protective film comprises a PET film layer and an adhesive layer. The PET film layer comprises an outer layer, a middle layer and an inner layer, and the outer layer, the middle layer and the inner layer are films bonded by co-extrusion. The adhesive layer coats the inner layer of the PET film layer. The PET film layer has a three-layer structure. The raw material of the inner layer of the PET film layer retains good wettability, improves the adhesion of the inner layer of the PET film layer to the adhesive layer and prevents the PET film layer from falling off in use. The middle layer of the PET film layer keeps PET protective film strength. The raw material of the outer layer of the PET film layer retains good surface smoothness and wear resistance. The preparation technology of the PET protective film having good wear resistance and strong impact resistance has a low preparation cost and simple processes, improves wettability of the inner layer of the PET film layer by corona treatment and improves the adhesion of the inner layer of the PET film layer to the adhesive layer.

Description

technical field [0001] The invention relates to the technical field of protective films, in particular to a PET protective film with good wear resistance and strong impact resistance and a manufacturing process thereof. Background technique [0002] With the development of science and technology, digital products have been greatly developed. In order to prevent scratches on the casing or screen of these digital products during use, thereby affecting the appearance of the digital product. Therefore, users usually use a protective film to cover their casing or screen. Especially on the screen of digital products, it is the place where users most often use protective films for protection. [0003] There are many types of protective films on the market, but they are only used to prevent scratches on the shell or the screen itself. They have a single function and cannot protect against damage under harsh conditions. For example, when people use handheld mobile phones, it is ine...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/02C08K3/36C08K3/22C08K5/42C09D4/02C09J7/02
Inventor 刘敏林永贵
Owner 东莞市尼的科技股份有限公司
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