PVDF/PETG composite and film for preparing same

A technology of composition and film, which is applied in the field of PVDF composition and its prepared film, can solve problems such as poor adhesion, achieve the effects of improved adhesion, reduced processing difficulty, and increased hydrophilicity

Inactive Publication Date: 2014-02-19
NANJING TECH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the two are combined, the PVDF film or PETG film modified by blending PVDF and PETG can well solve the shortcomings and shortcomings of the poor adhesion of PVDF substrates.

Method used

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  • PVDF/PETG composite and film for preparing same
  • PVDF/PETG composite and film for preparing same
  • PVDF/PETG composite and film for preparing same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] The PVDF / PETG composition contains 75 parts of Kynar720 PVDF, 20 parts of SKYGREEN S2008 PETG, 2 parts of IRGANOX B215, 2 parts of R902+TiO 2 and 1 part Tinuvin R 326. The composition is cast by conventional methods to produce a film. The film had an elongation at break of 260% and had good adhesion. Moreover, the color difference value of the film is ΔE<2 after UV aging for 3000 hours in the UV aging box. For its outdoor application, this film has good adhesion, weather resistance and UV aging resistance.

Embodiment 2

[0034] The PVDF / PETG composition contains 80 parts of Kynar720 PVDF, 15 parts of SKYGREEN S2008 PETG, 1 part of IRGANOX B215, 3 parts of R902+TiO 2 and 1 part Tinuvin R 326. The composition is cast by conventional methods to produce a film. The film had an elongation at break of 223% and had good adhesion. Moreover, the color difference value of the film is ΔE<2 after UV aging for 3000 hours in the UV aging box. For its outdoor application, this film has good adhesion, weather resistance and UV aging resistance.

Embodiment 3

[0036] The PVDF / PETG composition contains 85 parts of Kynar720 PVDF, 10 parts of SKYGREEN S2008 PETG, 1 part of IRGANOX B215, 3 parts of R902+TiO 2 and 1 part Tinuvin R 326. The composition is cast by conventional methods to produce a film. The film had an elongation at break of 204% and had good adhesion. Moreover, the color difference value of the film is ΔE<2 after UV aging for 3000 hours in the UV aging box. For its outdoor application, this film has good adhesion, weather resistance and UV aging resistance.

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Abstract

The invention discloses a PVDF / PETG composite. The composite is high in compatibility. The composite consists of the following components in part by weight: 70 to 100 parts of PVD, 1 to 30 parts of PETG, 0.1 to 5 parts of antioxidant, 0.1 to 5 parts of light screener and 0.1 to 5 parts of UV absorbent.

Description

technical field [0001] The invention relates to a PVDF composition and a film prepared therefrom, more specifically to a PVDF / PETG composition and a film prepared therefrom. Background technique [0002] PVDF (polyvinylidene fluoride) is used to protect objects or materials due to its good weather resistance, chemical resistance, high temperature resistance and excellent radiation resistance. In addition, PVDF not only has a glossy appearance but also has excellent scratch resistance. Therefore, people cover various types of substrates with PVDF films. Films made of polyvinylidene fluoride can be used as films for the automotive industry, films for capacitors, anti-atmospheric films, pyroelectric and piezoelectric films, and cover films for solar collector panels. Polyvinylidene fluoride film is characterized by high transparency, excellent physical and mechanical properties, aging resistance, and good thermal stability. However, the strong C-F bond of PVDF itself makes i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L27/16C08L67/02C08K13/02C08K3/22
Inventor 王庭慰周明柱姚娇娇陈鹏磊
Owner NANJING TECH UNIV
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