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Method for preparing acrylic ester-styrene butadiene styrene (SBS) copolymer

A technology of -SBS and acrylate, which is applied in the field of preparation of acrylate-SBS copolymer, can solve the problems of short viscosity maintenance time, poor initial adhesion, and low bonding strength, so as to improve peel strength and enhance polarity , Improve the effect of adhesion

Inactive Publication Date: 2013-04-03
QINGDAO SAMUELS INDAL & COMML
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when SBS is used as an adhesive, due to the lack of polar groups of SBS itself, when it is applied to the bonding of polar materials, it has disadvantages such as poor initial adhesion, low bonding strength, and short viscosity maintenance time, which limits its application.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0011] A kind of preparation method of acrylate-SBS copolymer, its steps are specifically: (1) when 65 ℃, start stirring, and the rotating speed is 600r / min, and 50 parts of styrene-butadiene-styrene triblock copolymer (SBS) was dissolved in 20 parts of N-methylpyrrolidone (NMP). (2) Using methyl methacrylate (MMA) and dipropylene glycol diacrylate (DPGDA) as mixed monomers with a mass ratio of 1:1.3 and a total amount of 15 parts, the SBS was grafted and modified for 2 hours. (3) Add 1 part of initiator benzoyl peroxide (BPO), stir and react for 7 hours at a temperature of 83° C. and a rotation speed of 1000 r / min to obtain an acrylate-SBS copolymer.

[0012] The peel strength of acrylate-SBS copolymer is 8.1kN / m -1 .

Embodiment 2

[0014] A kind of preparation method of acrylate-SBS copolymer, its steps are specifically: (1) when 65 ℃, start stirring, and the rotating speed is 600r / min, and 50 parts of styrene-butadiene-styrene triblock copolymer (SBS) was dissolved in 20 parts of N-methylpyrrolidone (NMP). (2) Using methyl methacrylate (MMA) and dipropylene glycol diacrylate (DPGDA) as mixed monomers with a mass ratio of 1:1.3 and a total amount of 20 parts, the SBS was grafted and modified for 2 hours. (3) Add 1 part of initiator benzoyl peroxide (BPO), stir and react for 7 hours at a temperature of 83° C. and a rotation speed of 1000 r / min to obtain an acrylate-SBS copolymer.

[0015] The peel strength of acrylate-SBS copolymer is 8.6kN / m -1 .

Embodiment 3

[0017] A kind of preparation method of acrylate-SBS copolymer, its steps are specifically: (1) when 65 ℃, start stirring, and the rotating speed is 600r / min, and 50 parts of styrene-butadiene-styrene triblock copolymer (SBS) was dissolved in 20 parts of N-methylpyrrolidone (NMP). (2) Using methyl methacrylate (MMA) and dipropylene glycol diacrylate (DPGDA) as mixed monomers with a mass ratio of 1:1.3 and a total amount of 25 parts, the SBS was grafted and modified for 2 hours. (3) Add 1 part of initiator benzoyl peroxide (BPO), stir and react for 7 hours at a temperature of 83° C. and a rotation speed of 1000 r / min to obtain an acrylate-SBS copolymer.

[0018] The peel strength of acrylate-SBS copolymer is 8.3kN / m -1 .

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PUM

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Abstract

The invention discloses a method for preparing an acrylic ester-styrene butadiene styrene (SBS) copolymer. The method comprises a step of performing graft modification on SBS in a solvent N-class A pyrrolidone (NMP) by using the SBS triblock copolymer as a matrix and methyl methacrylate (MMA), dipropylene glycol diacrylate ester (DPGDA) as a mixed monomer. An ester group and a carboxyl group are introduced into the SBS, so that the polarity of the SBS is increased, and the method is high in binding performance for the SBS subjected to graft modification and the polarity material.

Description

technical field [0001] The invention relates to a preparation method of acrylate-SBS copolymer, which belongs to the field of chemical industry. technical background [0002] SBS is a thermoplastic elastomer, which is easy to dissolve in non-polar solvents, and has the characteristics of low melt viscosity and easy modification. It is widely used in architectural decoration, paper-plastic lamination, pressure-sensitive adhesives and other industries. However, when SBS is used as an adhesive, because SBS itself lacks polar groups, when it is applied to bonding polar materials, it has disadvantages such as poor initial adhesion, low bonding strength, and short viscosity maintenance time, which limits its application. Therefore, the introduction of polar groups on SBS was originally modified to increase the compatibility and bonding performance of SBS and polar materials. Contents of the invention [0003] The purpose of this invention is to provide a kind of preparation met...

Claims

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Application Information

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IPC IPC(8): C08F287/00
Inventor 袁三平
Owner QINGDAO SAMUELS INDAL & COMML
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