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PVC lamp box film and preparation process thereof

A PVC resin and light box technology, applied in flat products, other household appliances, applications, etc., can solve the problems of PVC film aging and affect the use effect, and achieve the effects of avoiding adhesion, delaying aging, and improving smoothness

Inactive Publication Date: 2020-05-15
上海蓝泉塑料制品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The above-mentioned existing technical solutions have the following defects: the PVC film is easily affected by temperature, light, and radiation outdoors for a long time, and free radicals appear in the material structure in the PVC chain, and hydrogen atoms are obtained from the molecular chains of chlorine free radicals to form chains. Free radicals, the final chain free radicals get rid of chlorine free radicals, generate double bonds in the molecule and trigger continuous HCl removal, HCl release will cause a variety of conjugated double bonds to form, and then absorb more light radiation, leading to PVC film aging , affect the use effect

Method used

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  • PVC lamp box film and preparation process thereof
  • PVC lamp box film and preparation process thereof
  • PVC lamp box film and preparation process thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] Table 1 is each component and quality of a kind of PVC light box film of embodiment 1

[0046]

[0047] Wherein, the preparation method of the modified nano-titanium dioxide is as follows: 1) According to the number of parts by mass, 5 kg of nano-titanium dioxide is uniformly dispersed in 30 kg of absolute ethanol, ultrasonicated for 10 min, and then stirred for 40 min; 2) 1 kg of KH570 is added to 1) and stirred evenly Finally, add 10kg of polyethylene glycol, and emulsify the resulting solution for 30 minutes; 3) adjust the pH of the slurry obtained after 2) emulsification to 7.0, then stir the slurry at 60°C for 3 hours, and then ultrasonicate the obtained reaction solution for 30 minutes; 4) The suspension obtained by ultrasound is centrifuged, the supernatant is poured off, the precipitate is washed 3 times with absolute ethanol, and the obtained sample is dried and ground to obtain the modified nano-titanium dioxide.

[0048] A kind of preparation technology of...

Embodiment 2

[0059] Table 2 is each component and quality of a kind of PVC light box film of embodiment 2

[0060]

[0061] Among them, the preparation method of modified nano-titanium dioxide is: 1) According to the number of parts by mass, evenly disperse 8 kg of nano-titanium dioxide into 40 kg of absolute ethanol, and then stir for 50 min after ultrasonication for 15 min; 2) Add 2 kg of KH570 to 1) After stirring evenly, add 12kg of polyethylene glycol, and emulsify the obtained solution for 40 minutes; 3) adjust the pH of the slurry obtained after 2) emulsification to 8.0, then stir the slurry at 80°C for 2 hours, and then sonicate the obtained reaction solution for 30 minutes; 4) The suspension obtained by ultrasound is centrifuged, the supernatant liquid is poured off, the precipitate is washed 5 times with absolute ethanol, and the obtained sample is dried and ground to obtain modified nano-titanium dioxide.

[0062] A kind of preparation technology of PVC light box film, specif...

Embodiment 3

[0073] Table 3 is each component and quality of a kind of PVC light box film of embodiment 3

[0074] components mass (kg) components mass (kg) PVC resin 60 Anatase Titanium Dioxide 2 EVA resin 5 Decabromodiphenylethane 6 Dioctyl phthalate 30.4 Aluminum hydroxide 4 Epoxidized soybean oil 4.4 magnesium hydroxide 5 UV-9 1 Flaked Kaolin 2.5 UV-P 1 polyethylene wax 0.5 Modified Nano Titanium Dioxide 2.8 Oxidized polyethylene wax 0.5 Zinc stearate 2 Everlasting Purple 0.003 Ground calcium carbonate 65 Fluorescent whitening agent FP 0.05

[0075]Wherein, the preparation method of the modified nano-titanium dioxide is as follows: 1) According to the number of parts by mass, 7.5kg of nano-titanium dioxide is evenly dispersed in 40kg of absolute ethanol, ultrasonicated for 15min, and then stirred for 60min; 2) 3kg of KH570 is added to 1). After stirring evenly, add 15kg of polyethylene g...

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Abstract

The invention relates to a PVC lamp box film and a preparation process thereof, and relates to the technical field of lamp box films. The PVC lamp box film specifically comprises the following components in parts by weight: 50-60 parts of PVC resin, 5-10 parts of EVA resin, 28-35 parts of a plasticizer, 1-3 parts of an ultraviolet light absorber, 2-5 parts of modified nano titanium dioxide, 1-5 parts of a stabilizer, 62-70 parts of ground calcium carbonate, 1.8-2.5 parts of anatase titanium dioxide, 10-15 parts of a flame retardant, 2-3 parts of a flame retardant synergist, 1-3 parts of a lubricant and 0.002-0.007 part of a pigment. The aging of the PVC lamp box film is delayed, and the service life is prolonged.

Description

technical field [0001] The invention relates to the technical field of light box films, in particular to a PVC light box film and a preparation process thereof. Background technique [0002] Due to its good flexibility, uniform light transmission, long life, easy division and installation, and good ink absorption, the light box cloth is mainly used as an outdoor material or in the production of large-scale advertisements. A layer of light box film is usually placed on the surface or bottom of the light box cloth , used to improve the overall use effect of the light box cloth. The main component of PVC film is polyvinyl chloride, polyvinyl chloride is yellowish translucent, shiny and has good rainproof and antistatic properties, so it is more and more widely used in light box films. [0003] The Chinese patent with authorized announcement number CN102924844B discloses a preparation method of ultra-transparent PVC film. The weight percentage raw materials of the ultra-transpa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/06C08L23/08C08L23/06C08L91/00C08L23/30C08K13/06C08K9/06C08K9/10C08K3/22C08K3/26C08K5/12C08K5/03C08K3/34C08K5/098C08K5/132C08K5/3475C08J5/18B29C43/24B29C69/00B29L7/00
CPCB29C43/24B29C69/001B29L2007/00C08J5/18C08J2327/06C08J2423/06C08J2423/08C08J2423/30C08J2491/00C08K3/22C08K3/26C08K3/346C08K5/03C08K5/098C08K5/12C08K5/132C08K5/3475C08K9/06C08K9/10C08K13/06C08K2003/2224C08K2003/2227C08K2003/2241C08K2003/265C08K2201/011C08K2201/014
Inventor 吴翊军徐海平
Owner 上海蓝泉塑料制品有限公司
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