Unlock instant, AI-driven research and patent intelligence for your innovation.

A kind of surface modification method of polyethylene plastic sheet

A polyethylene plastic, surface modification technology, applied in the direction of surface pretreatment bonding method, ester copolymer adhesive, hydrocarbon copolymer adhesive, etc., can solve the problem of low surface activity, to overcome the bonding The effect of low adhesion

Active Publication Date: 2018-11-27
JIN BAOLI TECH SUZHOU
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a surface modification method that can overcome the low surface activity of high-density polyethylene sheets and facilitate subsequent processing

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] Add n-butyl acrylate and styrene with a molar ratio of 1.1 to toluene, add potassium iodide after mixing; reflux for 2 hours, remove the solvent by rotary evaporation, and then prepare acrylate prepolymer through column chromatography; 100g acrylate prepolymer Add the polymer to toluene, then add 20g of trimethylsiloxysilicate, 10g of diethyl phosphite, 0.1g of tetrazole and 150g of glycerol, and heat at 50°C for 35 minutes to obtain the adhesive component; 100g of bisphenol F epoxy resin, 50g of m-xylylenediamine, 0.1g of potassium hydroxylamine, 30g of bisphenol A dianhydride, and 500g of acetone were mixed to obtain a modified component. After the ultra-high molecular weight polyethylene plastic sheet is treated with plasma, it is coated with adhesive components, and after heat treatment at 60°C for 10 minutes, the modified component is coated and left at room temperature for 28 hours to obtain a surface-modified polyethylene plastic sheet . A contact angle of less ...

Embodiment 2

[0016] Add n-butyl acrylate and styrene with a molar ratio of 1.1 to toluene, add potassium iodide after mixing; reflux for 2 hours, remove the solvent by rotary evaporation, and then prepare acrylate prepolymer through column chromatography; 100g acrylate prepolymer Add the polymer to toluene, then add 20g of trimethylsiloxysilicate, 10g of diethyl phosphite, 0.1g of tetrazole and 150g of glycerol, and heat at 50°C for 35 minutes to obtain the adhesive component; 100g of bisphenol F epoxy resin, 50g of m-xylylenediamine, 0.1g of potassium hydroxylamine, 30g of bisphenol A dianhydride, and 500g of acetone were mixed to obtain a modified component. After the ultra-high molecular weight polyethylene plastic sheet is treated with plasma, it is coated with adhesive components. After heat treatment at 70°C for 15 minutes, the modified component is coated, and it is placed at 50°C for 35 hours to obtain a surface-modified polyethylene plastic sheet. material. A contact angle of les...

Embodiment 3

[0018] Add n-butyl acrylate and styrene with a molar ratio of 1.1 to toluene, add potassium iodide after mixing; reflux for 2 hours, remove the solvent by rotary evaporation, and then prepare acrylate prepolymer through column chromatography; 100g acrylate prepolymer Add the polymer to toluene, then add 20g of trimethylsiloxysilicate, 10g of diethyl phosphite, 0.1g of tetrazole and 150g of glycerol, and heat at 50°C for 35 minutes to obtain the adhesive component; 100g of bisphenol F epoxy resin, 50g of m-xylylenediamine, 0.1g of potassium hydroxylamine, 30g of bisphenol A dianhydride, and 500g of acetone were mixed to obtain a modified component. After the ultra-high molecular weight polyethylene plastic sheet is treated with plasma, it is coated with adhesive components, and after heat treatment at 60°C for 10 minutes, the modified component is coated, and it is placed at 50°C for 35 hours to obtain a surface-modified polyethylene plastic sheet material. A contact angle of ...

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
peel strengthaaaaaaaaaa
peel strengthaaaaaaaaaa
peel strengthaaaaaaaaaa
Login to View More

Abstract

The invention discloses a surface modification method of a polyethylene plastic sheet .The method includes the following steps that the polyethylene plastic sheet is coated with a bonding component after being subjected to plasma treatment, is coated with a modifying component after being subjected to heating treatment for 10-15 min at 60-70 DEG C, and is placed for 28-35 h at the room temperature to 50 DEG C, and then surface modification of the polyethylene plastic sheet is completed .The bonding component is obtained by mixing an acrylate prepolymer, trimethylsiloxysilicate, diethyl phosphite, tetrazole and glycerine .The acrylate prepolymer is prepared from n-butyl acrylate and styrene .The modifying component is obtained by mixing epoxy resin, an amine curing agent, potassium hydroxylamine, bisphenol A dianhydride and acetone .According to the method, polyethylene has an ultra-high molecular weight, and the weight-average molecular weight of ultra-high molecular weight polyethylene ranges from 6 million to 8 million .Testing with a droplet angle measurer shows that a contact angle smaller than 40 degrees is achieved, and testing with a tension tester shows that the peel strength of a modified layer is higher than 80 kgf / cm.

Description

technical field [0001] The invention relates to a surface-modified plastic sheet, in particular to a method for surface modification of a polyethylene plastic sheet. Background technique [0002] Plastic products are increasing day by day, filling people's daily life, plastic products like polypropylene / polyethylene can be seen everywhere. Ultra-high molecular weight polyethylene is a non-polar plastic material, which is not only light in weight but also waterproof, good chemical corrosion resistance, high impact resistance, high wear resistance, and can withstand extreme temperatures (-110 ° C ~ 120 ° C) ℃) good resistance to embrittlement; however, ultra-high molecular weight polyethylene is similar to common polytetrafluoroethylene materials, which exhibit extremely strong hydrophobicity and extremely low adhesion, especially for printed products, it is difficult to Printing patterns on the surface of HDPE is the biggest reason why the application of high-density polyeth...

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 Patents(China)
IPC IPC(8): C08J7/04C08J7/00C08J7/12C09J5/02C09J133/08C09J125/14C08L23/06
CPCC08J7/042C08J7/08C08J7/123C08J2323/06C08J2425/14C08J2433/04C08J2463/00C09J5/02C09J125/14C09J133/08
Inventor 李明华
Owner JIN BAOLI TECH SUZHOU