WO2019165586A1

WO2019165586A1 - Preparation method for waterproof binder

Info

Publication number: WO2019165586A1
Application number: PCT/CN2018/077483
Authority: WO
Inventors: 邱永兴
Original assignee: 邱永兴
Priority date: 2018-02-28
Filing date: 2018-02-28
Publication date: 2019-09-06

Abstract

A preparation method for a waterproof binder, the preparation method comprising: raising the temperature of the following parts by weight of components to 60 °C at a heating rate of 4 °C/min: 10-16 parts of sodium octadecyl sulfonate, 4-8 parts of diisooctyl phthalate, 4-8 parts of pentadiene, 6-12 parts of acrylic acid, 4-8 parts of methyl isobutyl ketone, 10-18 parts of methyl methacrylate, 10-20 parts of n-butyl methacrylate, 8-16 parts of γ-methacryloxypropyltrimethoxysilane, and 10-20 parts of vinyl tri-(β-methoxy ethoxy) silane, stirring sufficiently at a stirring rate of 400 revolutions/min, the stirring time being 4-6 hours, and then raising the temperature to 80 °C at a rate of 2 °C/min, and sufficiently stirring for 2-4 hours, the stirring rate being 300 revolutions/min, so as to obtain a primary product. The prepared waterproof binder has a simple structure, a good binding effect, and greatly improved waterproof performance.

Description

Method for preparing waterproof adhesive

Technical field

The invention relates to the technical field of adhesives, and in particular to a preparation method of a waterproof adhesive.

Background technique

The solar backsheet generally has a three-layer structure, the outer protective layer is a fluoropolymer layer, and has good environmental corrosion resistance, and the middle layer is a polyester film layer capable of biaxial stretching, and has good insulation properties and mechanical properties. The inner layer is a fluoropolymer layer or a polyethylene-vinyl acetate copolymer layer, which has good adhesion to the packaging material EVA. At present, the preparation methods of the backsheet materials at home and abroad are mostly coated with a polyurethane binder on both surfaces of the PET barrier film, and then respectively combined with a fluorine film and a fluorine film, a fluorine film and an EVA film, a fluorine film and a PE film. The preparation method mainly solves the problem of adhesion between fluorine film and PET film, PET film and EVA (PE) film, but there are still defects: using a staged composite means, that is, first coating and compounding on one surface of the PET film After a film, the other surface of the PET film is coated with another film, the process is more complicated; domestic polyurethane adhesives need to be imported, making the production cost of the solar backing plate too high; due to the polyurethane adhesive For the solvent-based binder, a large amount of organic solvent is required, and the adhesive currently used has a poor adhesion effect and insufficient waterproof performance.

Summary of the invention

It is an object of the present invention to provide a waterproof adhesive that addresses one or more of the above prior art problems.

The preparation method of the waterproof adhesive according to the present invention is prepared as follows: 10 to 16 parts of sodium stearyl sulfonate, 4 to 8 parts of diisooctyl phthalate, and 4 to 8 of pentadiene. Parts: 6-12 parts of acrylic acid, 4-8 parts of methyl isobutyl ketone, 10-18 parts of methyl methacrylate, 10-20 parts of n-butyl methacrylate, γ-methacryloxypropyl trimethyl 8 to 16 parts of oxysilane and 10 to 20 parts by weight of vinyltris(β-methoxyethoxy)silane are added to 60 ° C at a heating rate of 4 ° C / min, and the mixture is stirred at a rate of 400 rpm, stirring time is 4 to 6 hours, and then the temperature is raised to 80 ° C at a rate of 2 ° C / min, stirred for 2 to 4 hours, the stirring rate is 300 rev / min, to obtain a primary product.

The waterproof adhesive used in the invention has simple structure, good bonding effect and great improvement in waterproof performance.

Optimized, adding 6-8 parts of emulsifier wetting agent, 2-4 parts of coupling agent, 2-5 parts of antifoaming agent and 4-8 parts of dispersing agent to the above primary product, and degassing under vacuum condition, and then The pH was adjusted to 7 with a 20% by mass NaOH solution, and the temperature was lowered to room temperature to obtain a binder emulsion.

Optimized, the emulsified wetting agent is one of tridecyl acrylate, phenoxyethyl acrylate, benzyl acrylate or isobornyl acrylate.

Optimized, the coupling agent is a hydrogenated bisphenol A type urethane acrylate or an acrylated liquid polyisoprene rubber.

Optimized, the antifoaming agent is dicyclopentenyloxyethyl acrylate or tricyclodecane dimethanol diacrylate.

Preferably, the dispersing agent is one of dibutyltin dilaurate, stannous octoate or dibutyltin diacetate.

Optimized, after the binder emulsion is coagulated into a solid, the solid binder is ground into a powder by a milling device and bagged.

Detailed ways

The invention will now be described in further detail with reference to the drawings and specific experimental values.

Example 1

A water-repellent adhesive comprising the following components by weight: 10 parts sodium octadecyl sulfonate, 4 parts diisooctyl phthalate, 4 parts pentadiene, 6 parts acrylic acid, methyl isobutylene 4 parts of ketone, 10 parts of methyl methacrylate, 10 parts of n-butyl methacrylate, 8 parts of γ-methacryloxypropyltrimethoxysilane and vinyl tris(β-methoxyethoxy) ) 10 parts of silane.

A waterproof adhesive is prepared by the following steps: 10 parts of sodium octadecyl sulfonate, 4 parts of diisooctyl phthalate, 4 parts of pentadiene, 6 parts of acrylic acid, and methyl isobutyl ketone. 4 parts, 10 parts of methyl methacrylate, 10 parts of n-butyl methacrylate, 8 parts of γ-methacryloxypropyltrimethoxysilane and vinyl tris(β-methoxyethoxy) 10 parts by weight of the silane component was raised to 60 ° C at a heating rate of 4 ° C / min, stirred well, stirring rate was 400 rev / min, stirring time was 4 hours, and then heated to 80 ° C at a rate of 2 ° C / min Stir well for 2 hours at a stirring rate of 300 rpm to obtain a primary product.

6 parts of tridecyl acrylate, 2 parts of hydrogenated bisphenol A type urethane acrylate, 2 parts of dicyclopentenyloxyethyl acrylate and 4 parts of dibutyl tin dilaurate are added to the above primary product. Degassing under vacuum conditions, and then adjusting the pH value to 7 with a 20% by mass NaOH solution, and cooling to room temperature to obtain a binder emulsion, which is condensed into a solid and then passed through a milling device. The solid binder is ground into a powder and bagged.

Example 2

A water-repellent adhesive comprising the following components by weight: 13 parts sodium octadecyl sulfonate, 6 parts diisooctyl phthalate, 6 parts pentadiene, 9 parts acrylic acid, methyl isobutylene 6 parts of ketone, 14 parts of methyl methacrylate, 15 parts of n-butyl methacrylate, 12 parts of γ-methacryloxypropyltrimethoxysilane and vinyl tris(β-methoxyethoxy) ) 15 parts of silane.

A waterproof adhesive is prepared by the following steps: 13 parts of sodium octadecyl sulfonate, 6 parts of diisooctyl phthalate, 6 parts of pentadiene, 9 parts of acrylic acid, and methyl isobutyl ketone. 6 parts, 14 parts of methyl methacrylate, 15 parts of n-butyl methacrylate, 12 parts of γ-methacryloxypropyltrimethoxysilane and vinyl tris(β-methoxyethoxy) 15 parts by weight of the silane component was raised to 60 ° C at a heating rate of 4 ° C / min, stirred well, stirring rate was 400 rev / min, stirring time was 5 hours, and then heated to 80 ° C at a rate of 2 ° C / min Stir well for 3 hours at a stirring rate of 300 rpm to obtain a primary product.

7 parts of tridecyl acrylate, 3 parts of hydrogenated bisphenol A type urethane acrylate, 3 parts of dicyclopentenyloxyethyl acrylate and 6 parts of dibutyl tin dilaurate are added to the above primary product. Degassing under vacuum conditions, and then adjusting the pH value to 7 with a 20% by mass NaOH solution, and cooling to room temperature to obtain a binder emulsion, which is condensed into a solid and then passed through a milling device. The solid binder is ground into a powder and bagged.

Example 3

A water-repellent adhesive comprising the following components by weight: 16 parts sodium octadecyl sulfonate, 8 parts diisooctyl phthalate, 8 parts pentadiene, 12 parts acrylic acid, methyl isobutylene 8 parts of ketone, 18 parts of methyl methacrylate, 20 parts of n-butyl methacrylate, 16 parts of γ-methacryloxypropyltrimethoxysilane and vinyl tris (β-methoxyethoxy) ) 20 parts of silane.

A waterproof adhesive is prepared by the following methods: 16 parts of sodium octadecyl sulfonate, 8 parts of diisooctyl phthalate, 8 parts of pentadiene, 12 parts of acrylic acid, and methyl isobutyl ketone. 8 parts, 18 parts of methyl methacrylate, 20 parts of n-butyl methacrylate, 16 parts of γ-methacryloxypropyltrimethoxysilane and vinyl tris(β-methoxyethoxy) 20 parts by weight of the silane component was raised to 60 ° C at a heating rate of 4 ° C / min, stirred well, stirring rate was 400 rev / min, stirring time was 6 hours, and then heated to 80 ° C at a rate of 2 ° C / min Stir well for 4 hours at a stirring rate of 300 rpm to obtain a primary product.

8 parts of tridecyl acrylate, 4 parts of hydrogenated bisphenol A type urethane acrylate, 5 parts of dicyclopentenyloxyethyl acrylate and 8 parts of dibutyl tin dilaurate are added to the above primary product. Degassing under vacuum conditions, and then adjusting the pH value to 7 with a 20% by mass NaOH solution, and cooling to room temperature to obtain a binder emulsion, which is condensed into a solid and then passed through a milling device. The solid binder is ground into a powder and bagged.

The above is only a preferred mode of the present invention, and it should be noted that various similar modifications and improvements can be made by those skilled in the art without departing from the inventive concept. Within the scope of protection of the present invention.

Claims

A method for preparing a waterproof adhesive, which is prepared by the following steps: 10 to 16 parts of sodium stearyl sulfonate, 4 to 8 parts of diisooctyl phthalate, and 4 to 8 of pentadiene. Parts: 6-12 parts of acrylic acid, 4-8 parts of methyl isobutyl ketone, 10-18 parts of methyl methacrylate, 10-20 parts of n-butyl methacrylate, γ-methacryloxypropyl trimethyl 8 to 16 parts of oxysilane and 10 to 20 parts by weight of vinyltris(β-methoxyethoxy)silane are added to 60 ° C at a heating rate of 4 ° C / min, and the mixture is stirred at a rate of 400 rpm, stirring time is 4 to 6 hours, and then the temperature is raised to 80 ° C at a rate of 2 ° C / min, stirred for 2 to 4 hours, the stirring rate is 300 rev / min, to obtain a primary product.
The method for preparing a water-repellent adhesive according to claim 1, wherein 6 to 8 parts of the emulsification wetting agent, 2 to 4 parts of the coupling agent, and 2 to 4 parts of the antifoaming agent are added to the primary product. 5 parts and 4 to 8 parts of dispersing agent were degassed under vacuum, and then adjusted to pH 7 with a 20% by mass NaOH solution, and the temperature was lowered to room temperature to obtain a binder emulsion.
The method for preparing a waterproof adhesive according to claim 1, wherein the emulsified wetting agent is tridecyl acrylate, phenoxyethyl acrylate, benzyl acrylate or acrylic acid. One of the borneol esters.
The method for preparing a water-repellent adhesive according to claim 1, wherein the coupling agent is a hydrogenated bisphenol A type urethane acrylate or an acrylated liquid polyisoprene rubber.
The method for preparing a water-repellent adhesive according to claim 1, wherein the antifoaming agent is dicyclopentenyloxyethyl acrylate or tricyclodecane dimethanol diacrylate.
The method for preparing a water-repellent adhesive according to claim 1, wherein the dispersing agent is one of dibutyltin dilaurate, stannous octoate or dibutyltin diacetate.
The method for preparing a waterproof adhesive according to claim 1, wherein after the binder emulsion is condensed into a solid, the solid binder is crushed into a powder by a crushing device. bag.