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Preparation method of bionic BOPET substrate, acrylate pressure-sensitive adhesive based on bionic BOPET substrate and preparation method thereof

An acrylate and pressure-sensitive adhesive technology, applied in pressure-sensitive films/sheets, adhesives, film/sheet-like adhesives, etc., which can solve the problems of poor adhesion of acrylate pressure-sensitive adhesives

Active Publication Date: 2018-12-11
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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  • Preparation method of bionic BOPET substrate, acrylate pressure-sensitive adhesive based on bionic BOPET substrate and preparation method thereof
  • Preparation method of bionic BOPET substrate, acrylate pressure-sensitive adhesive based on bionic BOPET substrate and preparation method thereof
  • Preparation method of bionic BOPET substrate, acrylate pressure-sensitive adhesive based on bionic BOPET substrate and preparation method thereof

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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 ...

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 substrate, an acrylate pressure-sensitive adhesive based on the bionic BOPET substrate and a preparation method of the acrylate pressure-sensitive adhesive. The preparation method of the acrylate pressure-sensitive adhesive comprises the following steps: performing surface hydroxyl treatment on BOPET through a diluted (concentrated sulfuric acid or hydrogen peroxide) solution, and building a dual-bond group on the surface; then mixing modified SiO2 and an initiator in a methylbenzene solution, coating the surface of the treated BOPET with the mixed solution; preparing a BOPET bottom substrate being of a gecko-imitating micro-nano structure with UV (Ultraviolet) photocuring; coating the surface of the bionic BOPET with the acrylate pressure-sensitive adhesive to obtain a bionic pressure-sensitive adhesive. The acrylate pressure-sensitive adhesive based on the bionic BOPET is small in using amount and has superior bonding performance in a coating process, and is free from adhesive failure in a peeling process. The maximum peeling force at 180 degrees is up to 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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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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