Preparation method of biaxially oriented polyester film surface wear-resistant scratch-resistant coating

A technology of biaxially stretched polyester and scratch resistance, which is applied in the field of preparation of biaxially stretched polyester film surface coatings, can solve the problems of poor wear and scratch resistance and high cost of coatings, and achieve coating resistance Good wear and scratch resistance, lower production costs, and lower energy consumption

Inactive Publication Date: 2009-10-28
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to solve the problem of high wear and scratch resistance coating cost on the surface of biaxially stretched polyester (BOPET) film prepared in

Method used

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  • Preparation method of biaxially oriented polyester film surface wear-resistant scratch-resistant coating

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specific Embodiment approach 1

[0008] Specific embodiment one: the preparation method of the wear-resistant and scratch-resistant coating on the surface of the biaxially stretched polyester film in this embodiment is realized through the following steps: 1. 20 to 80 parts of polyurethane hexaacrylate, 5 parts by mass ~15 parts of epoxy modified acrylate, 5~20 parts of dipentaerythritol monohydroxy hexaacrylate, 5~50 parts of trimethylolpropane triacrylate, 2~50 parts of tripropylene glycol diacrylate, 0.5~2 1 part of butyl titanate and 3 to 10 parts of composite cracking type photoinitiator are mixed in a mixer at a speed of 50 to 1000 r / min for 10 to 60 minutes to obtain a coating, wherein the composite cracking type photoinitiator is composed of 2 to 5 parts of photoinitiator 184 are mixed with 1 to 5 parts of photoinitiator 1173, photoinitiator 1490 and photoinitiator 1700; 2. The coating obtained in step 1 is uniform Coating on the corona-treated BOPET film surface, and then cured by a 1000W UV curing m...

specific Embodiment approach 2

[0015] Embodiment 2: The difference between this embodiment and Embodiment 1 is that the epoxy-modified acrylate used in step 1 is epoxy-modified acrylate with a model number of 6230 produced by Taiwan Changxing Chemical Co., Ltd. Other steps and parameters are the same as those in Embodiment 1.

specific Embodiment approach 3

[0016] Specific embodiment three: the difference between this embodiment and specific embodiment one or two is that in step one, 30 to 60 parts of polyurethane hexaacrylate, 8 to 12 parts of epoxy-modified acrylate, and 8 to 15 parts of dipentaerythritol monohydroxyl Hexaacrylate, 10-30 parts of trimethylolpropane triacrylate, 10-30 parts of tripropylene glycol diacrylate, 0.8-1.5 parts of butyl titanate and 4-8 parts of composite cracking type photoinitiator are mixed. Other steps and parameters are the same as those in Embodiment 1 or Embodiment 2.

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Abstract

A preparation method of biaxially oriented polyester (BOPET) film surface wear-resistant scratch-resistant coating relates to a preparation method of a BOPET film surface coating and solves the problems of high cost and poor wear resistance and scratch resistance of the coating when preparing the BOPET film surface wear-resistant scratch-resistant coating in the prior art. The preparation method of the invention includes the following steps of: uniformly mixing polyurethane hexa-acrylate, epoxy modified acrylate, dipentaerythritol monohydroxy hexa-acrylate, trimethylolpropane tri-acrylate, tripropylene glycol diacrylate, butyl titanate and compound cracking light trigger to obtain coating material; then coating the coating material on the BOPET film surface done with corona treatment, and finally obtaining the (BOPET) film surface wear-resistant scratch-resistant coating after ultraviolet curing. The BOPET film surface wear-resistant scratch-resistant coating has low cost and good wear resistance and scratch resistance, and the coating performance pencil hardness is over 3H.

Description

technical field [0001] The invention relates to a method for preparing a surface coating of a biaxially stretched polyester film. Background technique [0002] Biaxially oriented polyester (BOPET) film as a photoelectric film material has good photoelectric comprehensive properties, but due to the influence of photoelectric product application conditions, it is required to have special properties such as good wear resistance and scratch resistance. However, it is difficult for BOPET to meet the above performance requirements, so it is required to coat its surface to achieve the purpose of improving hardness and toughness, and then meet the requirements of wear resistance and scratch resistance. [0003] At present, most of the wear-resistant and scratch-resistant coating materials on the surface of biaxially oriented polyester (BOPET) films independently developed in China are heat-cured organic silicon and nano-silica hybrid systems, and the curing time cycle Long, general...

Claims

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Application Information

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IPC IPC(8): B05D7/24B05D7/04B05D3/06C09D175/14C09D5/00
Inventor 白永平修志锋
Owner HARBIN INST OF TECH
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