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

Antistatic protective film with stable viscosity

An antistatic and protective film technology, applied in the direction of adhesives, adhesive types, ester copolymer adhesives, etc., can solve the problems that PET films do not have antistatic and electromagnetic shielding properties, are difficult to use, and have unstable viscosity. , to achieve obvious antistatic effect, prevent transfer or dissolution, and reduce self-shrinkage stress

Active Publication Date: 2019-03-01
东莞市卓华高分子材料有限公司
View PDF11 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] 1) Since the existing PET film does not have antistatic and electromagnetic shielding properties, it is difficult to use it in the packaging of electronic components
[0005] 2) Due to environmental protection and cost requirements, acrylate pressure-sensitive adhesives for PET protective films are gradually becoming water-based, but acrylate emulsion pressure-sensitive adhesives generally have the disadvantage of unstable viscosity

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
  • Antistatic protective film with stable viscosity
  • Antistatic protective film with stable viscosity
  • Antistatic protective film with stable viscosity

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] An antistatic protective film with stable viscosity, comprising a PET substrate layer, an antistatic layer arranged on the upper surface and a lower surface of the PET substrate layer, and an adhesive layer arranged on the outer surface of the antistatic layer;

[0029] Wherein, the antistatic layer comprises the composition of the following parts by weight:

[0030]

[0031] Wherein, the adhesive layer comprises the composition of the following parts by weight:

[0032]

[0033] Wherein, the number average molecular weight of the polyacrylamide is 12000-13000 g / mol. The number average molecular weight of the propylene-acrylamide copolymer is 9000-10000 g / mol. The number average molecular weight of the polyurethane resin is 16000-17000 g / mol. The number average molecular weight of polybutyl methacrylate is 17000-18000 g / mol.

Embodiment 2

[0035] Different from Example 1, the antistatic layer comprises the following compositions by weight:

[0036]

[0037] Wherein, the adhesive layer comprises the composition of the following parts by weight:

[0038]

[0039] Others are the same as in Embodiment 1, and will not be repeated here.

Embodiment 3

[0041] Different from Example 1, the antistatic layer comprises the following compositions by weight:

[0042]

[0043] Wherein, the adhesive layer comprises the composition of the following parts by weight:

[0044]

[0045] Others are the same as in Embodiment 1, and will not be repeated here.

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

No PUM Login to View More

Abstract

The invention discloses an antistatic protective film with stable viscosity. The antistatic protective film comprises a PET base material layer, antistatic layers arranged on the upper surface and thelower surface of the PET base material layer, and adhesive layers arranged on the outer surfaces of the antistatic layers; each antistatic layer is prepared from the following components in parts byweight: 100 parts of lithium bisimide, 5-10 parts of dimethyl fumarate, 5-8 parts of glass powder and 3-5 parts of a dispersant; and each adhesive layer is prepared from the following components in parts by weight: 100 parts of polyurethane resin, 5-10 parts of poly-n-butyl methacrylate, 15-20 parts of polyacrylamide and 5-10 parts of a propylene-acrylamide copolymer. Compared with the prior art,the protective film provided by the invention has the stable viscosity and good antistatic performance simultaneously, and can be used for packaging of electronic components.

Description

technical field [0001] The invention relates to the technical field of protective films, in particular to an antistatic protective film with stable viscosity. Background technique [0002] Polyethylene terephthalate is referred to as PET, which is a high polymer derived from the dehydration condensation reaction of ethylene terephthalate; ethylene terephthalate is composed of terephthalic acid and ethylene glycol It is obtained by esterification of alcohol; PET is a milky white or light yellow, highly crystalline polymer with a smooth and shiny surface; it has excellent physical and mechanical properties in a wide temperature range, and the long-term use temperature can reach 120 ° C. Excellent, even at high temperature and high frequency, its electrical properties are still good, but its corona resistance is poor, creep resistance, fatigue resistance, friction resistance, and dimensional stability are all good; because of its above excellent Characteristics, in the prior a...

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): C09J7/29C09J7/25C09J7/24C09J7/30C09J175/04C09J133/10C09J133/26C09J123/14
CPCC08K5/053C08K5/17C08L2201/08C08L2205/035C09J175/04C09J2423/046C09J2467/006C09J7/29C09J7/30C09J2301/41C08L33/10C08L33/26C08L23/147
Inventor 李武
Owner 东莞市卓华高分子材料有限公司
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