Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Material special for polyvinylidene fluoride film

A technology of polyvinylidene fluoride and special materials, which is applied in the field of special materials for polyvinylidene fluoride films, can solve problems such as unsuitable for large-scale promotion, high thermal shrinkage rate, low thermal shrinkage rate, etc., and achieve improved dimensional stability, high mechanical Effects of Strength and Low Thermal Shrinkage

Active Publication Date: 2011-04-13
HANGZHOU FUMO NEW MATERIAL TECH
View PDF4 Cites 27 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, THV and ECTFE have high raw material costs and are not suitable for large-scale promotion.
However, pure PVDF raw materials also have difficulties in film formation. After film formation, they are easy to warp and deform, and have high thermal shrinkage. Polyvinylidene fluoride film special material for solar cell backsheet with high durability, high weather resistance and low heat shrinkage

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Material special for polyvinylidene fluoride film
  • Material special for polyvinylidene fluoride film

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0021] The following implementation examples are further descriptions of the present invention, but the present invention is not limited to the following examples and implementation methods.

[0022] When the molecular weight of polyvinylidene fluoride is between 200,000 and 1 million, the raw material can be plasticized and processed, and the mechanical properties of the film are excellent.

[0023] The fluidity modifier used in the present invention is any one or combination of any of phthalates and phosphates. Among them, the flow modifier of phthalates can be: dimethyl phthalate, diethyl phthalate, dibutyl phthalate, phthalate Dihexyl phthalate, dioctyl phthalate, diisooctyl phthalate, diisodecyl phthalate, bis(2-methyl phthalate) Hexyl ester), dicyclohexyl phthalate, etc.; the flow modifier of phosphate esters can be: triethyl phosphate, tributyl phosphate, trioctyl phosphate, etc.

[0024] The heat stabilizing aid used in the present invention is any one or a combinati...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
particle sizeaaaaaaaaaa
particle sizeaaaaaaaaaa
boiling pointaaaaaaaaaa
Login to View More

Abstract

The invention discloses a material special for a polyvinylidene fluoride film. The material comprises the following components in part by weight: 60 to 75 parts of polyvinylidene fluoride, 5 to 10 parts of nanoscale filler, 0.5 to 3.5 parts of mobility modifier, and 10 to 20 parts of reinforced resin; and the material can further comprise 5 to 10 weight parts of inorganic filler and / or 0.1 to 2 weight parts of thermal stability auxiliary agent. The mobility of the polyvinylidene fluoride is greatly improved by the mobility modifier in the special material, so that melt extrusion and film forming can be easily performed; the reinforced resin has the functions of plasticization and toughening at the same time, so that the tear strength of the film is increased; under the strong shearing action of a double-screw extruder, the nanometer filler can be uniformly distributed, and the introduction of nanometer particles facilitates the reduction of the light transmittance and the water and vapor penetration rates of the film; the nanometer filler and the inorganic filler facilitate the improvement of the dimension stability of the film under the heated condition; and the polyvinylidene fluoride film prepared from the special material has the advantages of high mechanical strength, weather resistance and water and vapor barrier properties, low thermal shrinkage and the like.

Description

technical field [0001] The invention relates to a special material for polyvinylidene fluoride film, which is easy to process into a film and can be used to prepare a polyvinylidene fluoride film with excellent weather resistance, low water vapor transmission rate and excellent mechanical properties. Background technique [0002] Polyvinylidene fluoride (PVDF) is an important member of the fluoroplastic family, but due to poor fluidity, melting processing is difficult, and film formation is even more difficult. On the other hand, polyvinylidene fluoride has outstanding high and low temperature resistance, chemical corrosion resistance and weather resistance, excellent electrical insulation, and has been used in many industrial and civil fields. These excellent properties of polyvinylidene fluoride just meet the requirements of solar cell packaging backplane film protective film. One of the technical problems to be solved by the present invention is: research and development ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/16C08L33/08C08L33/10C08K13/02C08K3/36C08K3/26C08K5/12C08K5/521
Inventor 顾方明郑泓
Owner HANGZHOU FUMO NEW MATERIAL TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com