Invisible paste for screen protection and preparation method thereof

A screen protection and film sticking technology, applied in the direction of film/sheet adhesive, graft polymer adhesive, adhesive type, etc., can solve the problem of non-degradable, affecting the screen image, preventing myopia effect from being not obvious, etc. problem, to achieve good plasticizing effect, simple production process, and excellent transparency

Inactive Publication Date: 2014-11-19
FUJIAN AGRI & FORESTRY UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In actual use, the effect of preventing myopia is not obvious, and the film will also cause light refraction to affect the screen image. It is not degradable, and it is easy to cause environmental burdens

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Embodiment 1, a kind of preparation method of invisible screen protective film, comprises the following steps:

[0030] (1) Preparation of konjac glucomannan mixture: put a three-necked flask equipped with a stirrer and a condenser in a constant temperature water bath, add 1000mL of water and 15.2g of konjac fine powder, stir at 1000r / min, and add while stirring Formaldehyde 14mL and glycerin 10mL, heated to 60°C in a water bath, kept warm for 0.5h, fed nitrogen, added 0.0532g initiator 0.001mol / L potassium permanganate aqueous solution, adjusted temperature to 40°C, added 15.2g monomer after 10min Acrylamide, reaction 3h, then stop nitrogen, and stop heating and stirring;

[0031] (2) Degassing: put the konjac glucomannan mixture in step (1) in a centrifuge, and centrifuge at 3 000 r / min for 30 minutes at room temperature to obtain a konjac glucomannan gel mixture for later use ;

[0032] (3) Coating: Using the regenerated cellulose film as the base material, the kon...

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PUM

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Abstract

The invention relates to an invisible paste for screen protection and a preparation method thereof. The preparation method of the invisible paste for screen protection comprises the following steps: preparing a konjac glucomannan mixed liquid; degassing; coating; cutting; and drying. According to the preparation method provided by the invention, by taking konjac glucomannan as the raw material supplemented by other synergists, the paste has good film forming property, water absorption, great tensile strength and good flexibility and transparency. Compared with a common paste, the paste provided by the invention is high in tensile strength, light transmittance and viscosity, long in service time and crease-proof. The paste which is normally used is not degraded but can be fully degraded in soil under conditions of water, carbon dioxide, microorganism, temperature and the like. The paste which is short in degradation time meets the environmental friendly low carbon policy of the state. The paste provided by the invention is simple in production process, convenient and efficient to draw materials and low in price, and meets the production requirements.

Description

technical field [0001] The invention relates to a sticking film and a preparation method thereof, in particular to an invisible screen protection sticking film and a preparation method thereof. Background technique [0002] With the development of the economy, televisions, computers and other electronic products have entered people's lives. The screens of electronic products are easy to be scratched due to electrostatic dust accumulation. Electronic products are sensitive, and too much dust will affect their performance, especially It is the running speed of the computer; but after the film is pasted, it will affect its brightness, and it will become darker after a long time. Therefore, the light transmission performance of the film is also very important. [0003] The invention patent with the application number 201110453802.4 "A radiation-reducing film for computer screen" discloses a radiation-reducing film for computer screen. Its structure includes plastic film paper a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J7/02C09J151/02C08F251/00
Inventor 庞杰陈振燮吴先辉余庞熔余程程孙中琦陈国正马腾飞
Owner FUJIAN AGRI & FORESTRY UNIV
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