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Self-absorption film

A self-adsorption and thin-film technology, which is applied in the field of modified thin-film and its treatment, can solve the problems of inability to prepare substrates, small application range, and inability to adsorb, etc., and achieve excellent adsorption strength, wide application characteristics, and wide-ranging effects

Inactive Publication Date: 2012-10-17
上海好世材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The traditional self-absorbing film generally refers to polyethylene PE electrostatic film, such as the protective film of mobile phones, displays and other products. Objects such as EVA material have the ability to adsorb on the surface of smooth objects, but they cannot be adsorbed on the surface of undulating or rough objects, and their application range is relatively small.
Its common thickness usually exceeds 200 μm, and it is impossible to prepare thinner and lighter substrates, and the economical efficiency of the product is relatively poor

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A kind of self-adsorption film, the proportioning that its film base material adopts is: polyolefin resin 100 parts by weight, toughening agent 10PHR, surface modifier 3PHR, the structure of the film base material of the present embodiment is a 3-layer structure, thickness The thickness of each layer is 15% of the adsorption layer, 70% of the transparent layer and 15% of the adsorption layer, and is prepared through the following steps:

[0027] 1) Proportion the raw materials according to the requirements of color and shading rate, fully mix with 100 parts by weight of polyolefin resin, toughening agent 10PHR, and surface modifier 3PHR, and make film base by calendering, casting, blow molding and other methods material;

[0028] 2) Electronic comb treatment is performed on the two surfaces of the film substrate to form a change in the microstructure, forming a durable high-density surface polarity feature, until the surface polarity reaches a surface resistivity of 10 ...

Embodiment 2

[0033] A kind of self-adsorption film, the proportioning that its film base material adopts is: polyolefin resin 100 parts by weight, toughening agent 10PHR, filler 25PHR, coloring agent 30PHR, surface modifier 3PHR, the film base material of the present embodiment The structure is a 4-layer structure with a thickness of 20 μm to 200 μm. The thickness of each layer is 15% of the adsorption layer, 30% of the filling layer, 40% of the dyeing layer and 15% of the adsorption layer. It is prepared through the following steps:

[0034] 1) Proportion the raw materials according to the requirements of color and shading rate, mix them thoroughly, and prepare the film substrate by calendering, casting, blow molding and other methods;

[0035] 2) Perform specific electronic comb treatment on the 2-side surface of the film substrate and form a change in the microstructure, forming a durable high-density surface polarity feature, until the surface polarity reaches a surface resistivity of 1...

Embodiment 3

[0043] A kind of self-adsorption film, the proportioning that its film base material adopts is: polyolefin resin 100 parts by weight, toughening agent 10PHR, filler 25PHR, coloring agent 20PHR, surface modifier 3PHR, the film base material of the present embodiment The structure is a 5-layer structure with a thickness of 20μm~200μm. According to the thickness, it is 15% of the adsorption layer, 20% of the transparent layer, 20% of the filling layer, 30% of the dyeing layer, and 15% of the adsorption layer.

[0044] Prepare through the following steps:

[0045] 5) Proportion the raw materials according to the requirements of color and shading rate, fully mix them, and make film substrates by calendering, casting, blow molding and other methods;

[0046] 6) Perform specific electronic comb treatment on the two sides of the film substrate and form a change in the microstructure to form a durable high-density surface polarity feature;

[0047]7) Both surfaces of the treated film ...

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Abstract

The invention discloses a self-absorption film capable of realizing self-absorption property of the film through surface treatment of the film. The self-absorption film takes a polyolefin film as a substrate layer, and is characterized in that the self-absorption film comprises 2-5 layers of structures at least including the substrate layer and an absorption layer, the light shield rate of the film ranges from 5% to 95%, the film is 20 microns to 200 microns thick, the absorption layer with the self-absorption function formed by polarity is arranged on at least one surface of the film, and the surface resistivity is 10<12>-10<13> omega.cm and / or the volume resistivity is 10<9>-10<11> omega.cm<3>. The self-absorption film, provided by the invention, has self-absorption capacity for all kinds of material surfaces, limitation of the conventional polyethylene (PE) static film, that the PE static film is only attached on the smooth surface, is broken, the absorption intensity is higher, and the maximum unit of vertical release force is more than 100 times of the mass of the substrate in a unit of area after absorption. The self-absorption film can be widely applied to product protecting films, advertising propaganda materials and the like.

Description

technical field [0001] The invention relates to a self-adsorption film, which relates to a modified film with a polyolefin film as a base material and a processing method thereof. The self-absorption of the film is mainly achieved through surface treatment of the film. Background technique [0002] The traditional self-absorbing film generally refers to polyethylene PE electrostatic film, such as the protective film of mobile phones, displays and other products. Materials such as EVA have the ability to adsorb on the surface of smooth objects, but they cannot be adsorbed on the surface of undulating or rough objects, and their application range is relatively small. Its common thickness usually exceeds 200 μm, and it is impossible to prepare lighter and thinner substrates, and the economical efficiency of the product is relatively poor. [0003] For this reason, how to prepare a self-adsorbing film with a thickness ranging from 20 μm to 200 μm greatly improves the scope of ...

Claims

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Application Information

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IPC IPC(8): C08L23/12C08L23/06C08L23/08C08K3/22C08K3/36C08K3/26C08J7/00
Inventor 王晓晴
Owner 上海好世材料科技有限公司
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