CN212770539U

CN212770539U - TPU protection film with prevent static fire prevention function

Info

Publication number: CN212770539U
Application number: CN202020363149.7U
Authority: CN
Inventors: 李振航; 周小三; 李亚兵; 张欣戎; 杨小青
Original assignee: Jiangsu Tuyan New Material Technology Co ltd
Current assignee: Shanghai zitu New Material Technology Co., Ltd
Priority date: 2020-03-20
Filing date: 2020-03-20
Publication date: 2021-03-23
Anticipated expiration: 2030-03-20

Abstract

The utility model discloses a TPU protection film with prevent static fire prevention function, this protection film include substrate layer, flame retardant coating, anti scratch layer, and the upper surface coating of substrate layer has the flame retardant coating, and the upper surface coating of flame retardant coating has anti scratch layer, wherein, the substrate layer is for having the TPU thin layer that has the antistatic master batch of oxidation copper, and the interpolation proportion of the antistatic master batch of oxidation copper in the TPU thin layer is 3-10 wt%. The antistatic master batch containing copper oxide is added into the TPU, so that the antistatic TPU has good antistatic property and is prevented from adsorbing dust; the TPU protective film has the characteristics of scratch resistance and wear resistance through the scratch-resistant layer, and the scratch-resistant layer has excellent light transmission and weather resistance; the flame-retardant and fireproof effects are effectively improved through the fireproof layer; the utility model discloses simple structure, superior performance, the production of being convenient for are fit for the wide application.

Description

TPU protection film with prevent static fire prevention function

Technical Field

The utility model belongs to the technical field of the protection film, especially, relate to a TPU protection film with prevent static fire prevention function.

Background

The protective film can be divided into electronic product protective films, automobile protective films, household preservative films and the like according to purposes, and is generally a PVC protective film, but the PVC protective film is short in service life, is easy to cause yellowing, orange peel, cracking, blacking and the like, cannot be recycled, pollutes the environment, is poor in thermal stability of PVC materials, and can be decomposed to release toxic gas at high temperature for a long time. Because the TPU material has good mechanical strength, oil resistance, acid and alkali resistance, wear resistance, heat resistance and chemical resistance, the TPU material is generally accepted in China, and the phenomenon that the TPU material replaces the PVC material gradually appears in the field of the protective film. But the function of the existing TPU protective film is single.

SUMMERY OF THE UTILITY MODEL

The utility model provides a TPU protection film with prevent static fire prevention function, this protection film be the TPU protection film that has the fire prevention, prevent static, anti scratch function of environmental protection, excellent performance, simple structure, the production of being convenient for.

In order to solve the above problem, the technical scheme of the utility model is that:

the utility model provides a TPU protection film with prevent static fire prevention function, this TPU protection film includes substrate layer, flame retardant coating, anti-scratch layer from bottom to top in proper order, wherein, the substrate layer is for adding the TPU thin layer that has the antistatic master batch of copper oxide, and the interpolation proportion of the antistatic master batch of copper oxide in the TPU thin layer is 3-10 wt%, the material of flame retardant coating is amino acid sodium phosphate resin, the material on anti-scratch layer is polyurethane acrylic resin.

Preferably, the lower surface of the base material layer is further provided with an adhesive layer.

Preferably, the lower surface of the adhesive layer is also provided with a release film layer.

Preferably, the thickness of the scratch resistant layer is 2-20 μm.

Preferably, the thickness of the adhesive layer is 10-100 μm.

Preferably, the thickness of the release film layer is 1-5 μm.

Preferably, the thickness of the fire-proof layer is 5-20 μm

The utility model discloses owing to adopt above technical scheme, make it compare with prior art and have following advantage and positive effect:

the base material of the TPU protective film provided by the utility model is the TPU film layer, which has good mechanical strength, oil resistance, acid and alkali resistance, wear resistance, heat resistance and chemical resistance; the copper oxide antistatic master batch is added into the TPU, so that the TPU protective film has good antistatic property and is prevented from adsorbing dust; the upper surface of the base material layer is coated with the fireproof layer, so that the protective layer has good flame-retardant and fireproof performance; the protective film has good anti-scratching and wear-resisting properties by coating the anti-scratching film layer on the fireproof layer. Meanwhile, the protective film has the advantages of simple structure, superior performance and convenience in production, and is suitable for wide application.

Drawings

Fig. 1 is the cross section structure schematic diagram of the TPU protection film with antistatic and fireproof functions of the present invention.

Description of reference numerals: 1-a substrate layer; 2-an adhesive layer; 3-a release film layer; 4-a fire-resistant layer; 5-anti-scratch layer.

Detailed Description

The TPU protective film with antistatic and fireproof functions provided by the present invention will be described in detail with reference to the accompanying drawings and specific embodiments. The advantages and features of the present invention will become more fully apparent from the following description and appended claims.

Referring to fig. 1, the embodiment provides a TPU protective film with an antistatic and fireproof function, which includes a substrate layer 1, a fireproof layer 4, and an anti-scratch layer 5, wherein the fireproof layer 4 is coated on the upper surface of the substrate layer 1, the anti-scratch layer 5 is coated on the upper surface of the fireproof layer 4, the thickness of the anti-scratch layer 5 is preferably 2-20 μm, the anti-scratch layer 5 is generally made of urethane acrylic resin, the urethane acrylic resin has the characteristics of scratch resistance and wear resistance, and has excellent light transmittance and weather resistance, the thickness of the fireproof layer is 5-20 μm, and the material of the fireproof layer 4 is generally amino acid sodium phosphate resin;

the base material layer 1 is a TPU film layer added with copper oxide antistatic master batches, a very small amount of aluminum oxide is added into the copper oxide antistatic master batches, the amount of aluminum oxide generally accounts for 2 wt% of copper oxide nano particles, the particle size of copper oxide nano particles in the copper oxide antistatic master batches is 20-40nm, and the adding proportion of the copper oxide antistatic master batches in the TPU film layer is 3-10 wt%.

Preferably, the lower surface of the substrate layer 1 is further coated with an adhesive layer 2, the adhesive layer 2 is used for adhering to the surface of a product to be protected, the thickness of the adhesive layer 2 is preferably 10-100 μm, and the material of the adhesive is generally selected from one or more of acrylic adhesive, rubber adhesive and silicone adhesive.

Preferably, the lower surface of the adhesive layer 2 is covered with a release film layer 3, the release film layer 3 is used for protecting the prepared TPU protective film, when the protective film is needed to be used on the surface of a product to be protected, the release film layer 3 is torn off, the protective film can be adhered to the surface of the protected product, the thickness of the release film layer 3 is preferably 1-5 μm, and the release film layer 3 can be made of one of a polyethylene release film, a polypropylene release film, a polyvinyl chloride release film, a polyethylene terephthalate release film, an exhaust release film and a base coat composite release film.

The preparation method of the TPU protective film comprises the following steps:

(1) firstly, uniformly mixing the copper oxide antistatic master batch with TPU (thermoplastic polyurethane), and then extruding the TPU added with the copper oxide antistatic master batch into a film in an extrusion mode to form a substrate layer 1;

(2) coating the adhesive on the lower surface of the base material layer 1 in a coating mode, wherein the thickness of the adhesive layer 2 is controlled to be 10-100 micrometers;

(3) covering a release film on the lower surface of the adhesive layer 2, wherein the thickness of the release film layer 3 is 1-5 micrometers;

(4) coating the fireproof layer 4 on the upper surface of the base material layer 1 in a coating mode;

(5) and covering the upper surface of the fire-proof layer 4 with an anti-scratch layer 5, wherein the thickness of the anti-scratch layer 5 is controlled to be 2-20 micrometers.

In the TPU protective layer provided in this embodiment, the TPU film layer is selected as the substrate, and has good mechanical strength, oil resistance, acid and alkali resistance, wear resistance, heat resistance and chemical resistance; by adding the copper oxide master batch into the TPU, the TPU has good antistatic property and is prevented from adsorbing dust; the upper surface of the base material layer 1 is coated with the fireproof layer 4, so that the protective layer has good flame-retardant and fireproof performance; the protective layer has good anti-scratch and wear-resistant performances by coating the anti-scratch layer 5 on the fire-proof layer 4. Meanwhile, the protective film has the advantages of simple structure, superior performance and convenience in production, and is suitable for wide application.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments. Even if various changes are made to the present invention, the changes are still within the scope of the present invention if they fall within the scope of the claims and their equivalents.

Claims

1. The utility model provides a TPU protection film with prevent static fire prevention function which characterized in that, this TPU protection film includes substrate layer, flame retardant coating, anti-scratch layer from supreme down in proper order, wherein, the substrate layer is the TPU thin layer, the material on anti-scratch layer is polyurethane acrylic resin.

2. The TPU protective film with the antistatic and fireproof functions as claimed in claim 1, wherein an adhesive layer is further arranged on the lower surface of the substrate layer.

3. The TPU protective film with the antistatic and fireproof functions as claimed in claim 2, wherein a release film layer is further arranged on the lower surface of the adhesive layer.

4. The TPU protective film with the antistatic and fireproof functions of claim 1 or 3, wherein the thickness of the scratch-resistant layer is 2 to 20 μm.

5. The TPU protective film with the antistatic and fireproof functions as claimed in claim 2, wherein the thickness of the adhesive layer is 10-100 μm.

6. The TPU protective film with the antistatic and fireproof functions as claimed in claim 3, wherein the thickness of the release film layer is 1-5 μm.

7. The TPU protective film with the antistatic and fireproof functions of claim 1, wherein the thickness of the fireproof layer is 5 to 20 μm.