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A preparation method of bionic bopet base material and acrylate pressure-sensitive adhesive based on the base material and its preparation method

A technology for pressure-sensitive adhesive tapes and substrates, which can be used in pressure-sensitive films/sheets, adhesives, film/sheet-like adhesives, etc., and can solve problems such as poor adhesion of acrylate pressure-sensitive adhesives

Active Publication Date: 2021-04-27
HARBIN INST OF TECH WUXI RES INST OF NEW MATERIALS +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problem of poor adhesion of acrylate pressure-sensitive adhesives in the prior art, the present invention provides a method for preparing a bionic BOPET substrate and an acrylate pressure-sensitive adhesive based on the substrate and a preparation method thereof

Method used

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  • A preparation method of bionic bopet base material and acrylate pressure-sensitive adhesive based on the base material and its preparation method
  • A preparation method of bionic bopet base material and acrylate pressure-sensitive adhesive based on the base material and its preparation method

Examples

Experimental program
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Effect test

Embodiment 1

[0031] The first step, the preparation method of the biomimetic BOPET substrate:

[0032] 1. Configure (concentrated sulfuric acid / hydrogen peroxide) = 7:3 solution, then dilute it to a concentration of 70% with deionized water, cut a 25cm×25cm BOPET into the solution, take it out after 2h with deionized water, Wash with acetone 3 times in turn, and finally blow dry with nitrogen for use;

[0033] 2. Put the above-treated BOPET into a toluene solution of 2wt% γ-methacryloxypropyltrimethoxysilane and stir for 24 hours;

[0034] 3. Select 1g of 200nm and 1g of 4μm diameter SiO 2 , put it in a toluene solution of 20wt% γ-methacryloxypropyltrimethoxysilane and stir it with magnets for 36h, then dry the lower sediment by a centrifuge in an oven at 55°C to obtain modified SiO 2 ;

[0035] 4. Modified SiO 2 and 2-hydroxy-2-methyl-1-phenyl-1-propanone are uniformly mixed in toluene solution, and then evenly coated on the treated BOPET surface with a coating rod, and passed through...

Embodiment 2

[0041] The first step, the preparation method of the biomimetic BOPET substrate:

[0042] 1. Prepare (concentrated sulfuric acid / hydrogen peroxide) = 6:4 solution, then dilute it to a concentration of 80% with deionized water, cut a 25cm×25cm BOPET into the solution, take it out after 2h with deionized water, Wash with acetone 3 times in turn, and finally blow dry with nitrogen for use;

[0043] 2. Put the above-treated BOPET into a toluene solution of 2wt% trimethoxyvinylsilane and stir for 24 hours;

[0044] 3. Select 1g of 300nm and 1g of 3μm diameter SiO 2 , put it in a toluene solution of 20wt% trimethoxyvinylsilane and stir it with a magnet for 36h, and then dry the lower sediment by a centrifuge in an oven at 55°C to obtain modified SiO 2 ;

[0045] 4. Modified SiO 2 Mix evenly with 1-hydroxy-cyclohexyl-phenyl ketone in toluene solution, then evenly coat the treated BOPET surface with a coating rod, pass through a UV light curing machine (wavelength 355nm, UV curing t...

Embodiment 3

[0051] The first step, the preparation method of the biomimetic BOPET substrate:

[0052] 1. Prepare (concentrated sulfuric acid / hydrogen peroxide) = 5:5 solution, then dilute it to a concentration of 90% with deionized water, cut a 25cm×25cm BOPET into the solution, take it out after 2 hours with deionized water, Wash with acetone 3 times in turn, and finally blow dry with nitrogen for use;

[0053] 2. Put the above-treated BOPET into a toluene solution of 2wt% trimethoxyvinylsilane and stir for 24 hours;

[0054] 3. Choose 1g 400nm and 1g 3μm diameter SiO 2 , place it in a toluene solution of 20wt% vinyltriethoxysilane and stir it with a magnet for 36 hours, and then dry the lower sediment by a centrifuge in an oven at 55°C;

[0055] 4. Modified SiO 2 and 2,4,6 (trimethylbenzoyl) diphenylphosphine oxide are evenly mixed in toluene solution, and then evenly coated on the treated BOPET surface with a coating rod, and passed through a UV light curing machine (wavelength 355n...

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Abstract

The invention discloses a preparation method of a bionic BOPET base material and an acrylate pressure-sensitive adhesive based on the base material and a preparation method thereof. The BOPET is subjected to surface hydroxyl treatment with a diluted (concentrated sulfuric acid / hydrogen peroxide) solution, and Build double bond groups on the surface, and then modify the SiO 2 Mix with initiator in toluene solution, and apply on the treated BOPET surface, use UV light curing to prepare a BOPET substrate with imitation gecko micro-nano structure, apply acrylate pressure-sensitive adhesive on the surface of bionic BOPET, and make Bionic pressure sensitive adhesive. The biomimetic BOPET-based acrylate pressure-sensitive adhesive of the present invention uses less glue in the coating process and has excellent adhesive performance. There is no degumming phenomenon in the peeling process, and the maximum 180° peeling force reaches 19.2N / 25mm.

Description

technical field [0001] The invention relates to the technical field of adhesives, in particular to a preparation method of a bionic BOPET substrate, an acrylate pressure-sensitive adhesive based on the substrate and a preparation method thereof. Background technique [0002] Pressure-sensitive adhesive is a kind of adhesive that is sensitive to pressure. It does not need heat, curing agent or other means, and only needs to provide mild pressure to bond with the object to be bonded. From the shielding protective film used in daily necessities and electronic product packaging, to the use of insulating tape used in electrical appliances, it is precisely because of its own characteristics that pressure-sensitive adhesives are widely used in the market. [0003] Acrylic pressure-sensitive adhesive is currently the most widely used pressure-sensitive adhesive. It is a copolymer of acrylate monomer and other vinyl monomers. Compared with other types of pressure-sensitive adhesives,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J7/25C09J7/38C09J7/50C08J7/12C08J7/14C08F220/18C08F220/14C08F220/06C08F220/20C08F212/08C08F218/08C08F220/56C08F220/32C08F222/06C08L67/02
CPCC09J7/255C09J7/385C09J7/50C08F220/18C08J7/12C08J7/123C08J7/14C08J2367/02C09J2433/00C09J2467/006C08F220/1804C09J2301/312C09J2301/414C09J2301/302C08F220/14C08F220/06C08F220/20C08F220/1808C08F220/1812C08F212/08C08F218/08C08F222/06C08F220/325C08F220/1802C08F220/56
Inventor 贺金梅张晓勇白永平岳利培
Owner HARBIN INST OF TECH WUXI RES INST OF NEW MATERIALS
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