Preparation method for improving surface hydrophilicity of nanometer polyethylene terephthalate (PET) films

A hydrophilic and thin-film technology, which is applied in the field of preparation of improving the surface hydrophilicity of nano-PET films, can solve the problems of insignificant modification effect, no cross-linked layer, insufficient surface layer, etc., and achieves electron density distribution and space The effect of uniform density publication, good uniformity and performance repeatability, and simple preparation process
CN102367571AActive Publication Date: 2012-03-07广东冠晟新材料科技有限公司
2 Cites 2 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
广东冠晟新材料科技有限公司
Publication Date
2012-03-07

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention relates to a preparation method for improving the surface hydrophilicity of nanometer polyethylene terephthalate (PET) films, which comprises the following steps that: the nanometer PET films with the cleaned surfaces are placed into a radio frequency plasma generator, the glow discharge is carried out at room temperature under the condition of argon gas or mixed gas of argon gas and helium gas, the work vacuum degree is controlled at 20 to 45Pa, the time is controlled at 3 to 5.5min, the surfaces of the modified nanometer PET films are exposed in the air to carry out the ageingtreatment for 24 to 84 hours, then, the nanometer PET films are placed into the radio frequency plasma generator, the glow discharge is carried out at room temperature under the condition of argon gas or mixed gas of argon gas and helium gas, the work vacuum degree is controlled at 10 to 35Pa, and the time is controlled at 5 to 7.5min. The uniformity of the surface hydrophilicity of the PET filmstreated by the method is good, and the method has the characteristics that the performance repetitiveness is good, the preparation process is simple, and the production efficiency is high.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to a preparation method for improving the surface hydrophilicity of a nano-PET film, belonging to the technical field of PET films. Background technique

[0002] Polyethylene terephthalate (PET) is a polymer material with excellent comprehensive properties, and has been widely used in the fields of film, fiber and engineering plastics. However, due to the slow crystallization rate of PET, low heat distortion temperature and poor processability, its application in many fields is limited. Nano-PET uses intercalation polymerization composite technology to uniformly disperse layered silicate in the PET matrix at a nanoscale of 1-100nm in the intercalation copolymerization reaction, and the spherulites of PET are refined, which can greatly improve the crystallization of PET. rate, high barrier properties (O 2 , CO 2 、H 2 O transmittance doubled) and heat resistance. At the same time, the particle size of nanoparticles is smaller t...

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