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Heat-insulation anti-ultraviolet automobile membrane and preparation method thereof

A car film and anti-ultraviolet technology, which is applied in the field of heat-insulating and anti-ultraviolet car film and its preparation, and can solve the problems of reduced mechanical strength, high cost, and complicated process of polyvinyl chloride film

Active Publication Date: 2016-02-24
广州市宝裕新型材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

2. Metal film refers to the preparation of colorless original film by splashing metal, usually aluminum and iron. The film has poor perspective and heat insulation effect; , titanium, platinum, etc., but the process is complex and expensive
3. The nano-ceramic film is based on nano-nitrogen, prepared by magnetron sputtering technology and metal nitriding technology, durable, but the film is expensive
However, this car film uses PVC as the main substrate, and there are the following problems: 1. The mechanical strength of the polyvinyl chloride film decreases significantly with time, 2. The slow release of plasticizers and sticking Due to the phenomenon of dust attached, it is difficult to wash, which makes the light transmittance drop rapidly and shorten the service life

Method used

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  • Heat-insulation anti-ultraviolet automobile membrane and preparation method thereof

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[0021] The embodiment of the present invention discloses a preparation method of an anti-ultraviolet and anti-aging nanocomposite material, comprising the following steps: dispersing 5-10 parts of nano-zinc oxide into absolute ethanol, then adding 10-15 parts of cerium chloride, stirring Obtain the first mixed solution; Add acetylacetone dropwise to the first mixed solution, place it after sealing and stirring, centrifuge, wash and dry to obtain zinc oxide coated with nano-cerium dioxide; Zinc oxide of cerium is dispersed in the mixed solution of deionized water and absolute ethanol, add 5-15 parts of low molecular weight sodium polyacrylate, then drop 3-6 parts of silane coupling agent, adjust the pH value to 9-10 after stirring After ultrasonic dispersion, continue to stir for 30-40 minutes, centrifuge and dry to obtain anti-ultraviolet and aging-resistant nanocomposites.

[0022] In the above technical scheme, the present invention utilizes the sol-gel method to coat a laye...

Embodiment 1

[0056] This embodiment provides a method for preparing an anti-ultraviolet and anti-aging nano-composite material, in parts by weight, comprising the following steps:

[0057] Disperse 8 parts of nano zinc oxide into 200 parts of absolute ethanol, then add 15 parts of cerium chloride, and stir for 10 minutes.

[0058] Then 3-5 parts of acetylacetone are added dropwise to the above-mentioned solution, stirred at room temperature for 2 hours, and aged for 2 hours to obtain zinc oxide (ZnOCeO2) coated with nano-cerium dioxide. 2 ).

[0059] The above ZnOCeO 2 Centrifuge, repeatedly add 1,2 propylene glycol and ethanol to wash, and dry.

[0060] The above prepared ZnOCeO 2 Disperse in a mixed solution of 100 parts of deionized water and 200 parts of absolute ethanol.

[0061] Add 12 parts of low-molecular-weight sodium polyacrylate, then dropwise add 5 parts of silane coupling agent, stir thoroughly for 10 minutes, adjust the pH of the solution to 9-10, ultrasonicate for 5 min...

Embodiment 2

[0063] This embodiment provides a method for preparing a heat-insulating and anti-ultraviolet automotive film, in parts by weight, comprising the following steps:

[0064] 1. Mix 60 parts of polyethylene terephthalate, 15 parts of polytrimethylene terephthalate, 8 parts of polyimide, 9 parts of molybdenum disulfide, 10 parts of plasticizer and 2-3 parts of ethylene- Put the α-olefin copolymer into a high-speed mixer and stir for 10-20 minutes at 800-1100 rpm.

[0065] 2. Heat the above mixture to 105°C, add 5 parts of carboxymethyl cellulose and 8 parts of nano silicon dioxide, and continue to stir for 25 minutes.

[0066]3. Add the mixture obtained in step 2 into a twin-screw extruder for melt blending, extrusion, cooling, and granulation to obtain film masterbatches. The blending and extrusion temperature of the twin-screw extruder is: 175°C in the first zone, The second zone is 180°C, the third zone is 19°C, the fourth zone is 205°C, the fifth zone is 215°C, the head is 22...

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Abstract

The invention provides a heat-insulation anti-ultraviolet automobile membrane and a preparation method thereof. According to the technical scheme, polyethylene terephthalate, polytrimethylene terephthalate, polyimide, molybdenum disulfide, a plasticizer, carboxymethyl cellulose, nanometer silicon dioxide, ethylene-alpha-alkene copolymer, an antioxidant and an anti-ultraviolet anti-ageing nanometer composite material are taken as raw materials. Compared with the prior art, the nanometer-cerium-dioxide-coated nanometer zinc oxide composite material possesses the characteristics of being resistant to ultraviolet irradiation, resistant to heat, non-toxic, strong in stability and the like, and is capable of shielding ultraviolet and reflecting ultraviolet outside of the membrane. Therefore, the heat-insulation anti-ultraviolet automobile membrane is simple in preparation technology, and possesses the characteristics of being good in heat-insulation effect, resistant to high temperature, resistant to ultraviolet and resistant to ageing. The invention also provides a preparation method for an anti-ultraviolet anti-ageing nanometer composite material, and the anti-ultraviolet anti-ageing nanometer composite material possesses god anti-ultraviolet and anti-ageing performances.

Description

technical field [0001] The invention relates to the technical field of automobile film, in particular to a heat-insulating and anti-ultraviolet automobile film and a preparation method thereof. Background technique [0002] Car film is to paste a layer of film-like objects on the front and rear windshields, side windows and sunroofs of the car. In general, the advantages of car glass film mainly lie in the following aspects: heat insulation, sun protection, UV protection, explosion-proof, anti-glare, reducing air-conditioning consumption and creating a private space. In recent years, due to the obvious greenhouse effect, the longer the summer and the hotter the weather, the higher the requirements for automotive insulation films. [0003] Automotive heat insulation films are mainly divided into the following categories: 1. Dyeing film, which is characterized by thinness, poor heat insulation effect, and easy to fade. 2. Metal film refers to the preparation of colorless ori...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/02C08L79/08C08L1/28C08L23/08C08K13/06C08K9/10C08K9/06C08K3/22C08K3/36C08K3/30B29C47/92B29C48/92
Inventor 翁毅邱诗妍
Owner 广州市宝裕新型材料有限公司
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