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A kind of emulsion type polyacrylate pressure sensitive adhesive and its preparation method and application

A technology of polyacrylate and acrylate, which is applied in the direction of adhesive type, ester copolymer adhesive, etc., can solve the problem of increasing the molecular weight distribution of the emulsion, achieve the goal of improving compatibility, simplifying the production process, and improving the overall performance Effect

Inactive Publication Date: 2017-03-01
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this grafting method limits the use of hydrogenated rosin to side chain functional groups, and does not increase the molecular weight distribution of the emulsion

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] A preparation method of emulsion type polyacrylate pressure-sensitive adhesive, specifically comprising the following steps:

[0041] (1) Under the condition of stirring (stirring speed is 300r / min), put 0.55g sodium lauryl sulfate, 0.25g OP-10, 48g deionized water into the beaker, stir and mix for 5 minutes; then slowly add 28.2g of butyl acrylate, 14.1g of isooctyl acrylate, 4.7g of ethyl acrylate, 1.8g of methyl methacrylate, 1.2g of vinyl acetate, 1.5g of hydroxyethyl acrylate and 1g of acrylic acid, continue to stir for 20 minutes, Obtain pre-emulsion I;

[0042] (2) 13.8g of butyl acrylate, 9.2g of isooctyl acrylate, 5.4g of methyl methacrylate, 3.6g of vinyl acetate, 1.5g of acrylic acid, 0.28g of sodium lauryl sulfate, OP-100.12g, 0.1 1 g of dodecyl mercaptan and 15 g of deionized water were stirred and mixed uniformly (the stirring speed was 300 r / min) to obtain pre-emulsion II;

[0043] (3) 0.2g ammonium persulfate is dissolved in 4g deionized water and is m...

Embodiment 2

[0047] A preparation method of emulsion type polyacrylate pressure-sensitive adhesive, specifically comprising the following steps:

[0048] (1) Under the condition of stirring (stirring speed is 600r / min), put 1.2g of allyloxy hydroxypropyl sodium sulfonate and 60g of deionized water into a beaker, stir and mix for 10 minutes; then slowly add acrylic acid The mixture of 48g butyl ester, 9g isooctyl acrylate, 3g ethyl acrylate, 4.2g methyl methacrylate, 1.8g methyl acrylate, 2.5g hydroxyethyl acrylate and 1.5g acrylic acid was stirred for 30 minutes to obtain a pre-emulsion I;

[0049] (2) Add 24g of butyl acrylate, 6g of isooctyl acrylate, 11.8g of methyl methacrylate, 2.2g of methyl acrylate, 3g of carboxyethyl acrylate, 0.8g of allyloxy hydroxypropyl sodium sulfonate, 0.3 g octadecyl mercaptan and 25 g deionized water were stirred and mixed evenly to obtain pre-emulsion II;

[0050] (3) 0.4g ammonium persulfate is dissolved in 6g deionized water and is mixed with initiato...

Embodiment 3

[0054] A preparation method of emulsion type polyacrylate pressure-sensitive adhesive, specifically comprising the following steps:

[0055] (1) Under stirring conditions (stirring speed is 450r / min), put 0.65g sodium lauryl sulfate, 0.35g OP-10, and 54g deionized water into a beaker, stir and mix for 10 minutes; then slowly Add 36g of butyl acrylate, 24g of isooctyl acrylate, 3.6g of methyl methacrylate, 1.8g of vinyl acetate, 0.6g of methyl acrylate, 3g of hydroxyethyl acrylate and 1g of methacrylic acid, and continue stirring for 25 minutes. Obtain pre-emulsion I;

[0056] (2) Add 18g of butyl acrylate, 12g of isooctyl acrylate, 11.8g of methyl methacrylate, 2.2g of vinyl acetate, 3g of acrylic acid, 0.6g of sodium lauryl sulfate, 0.2g of OP-100, 0.3g of octadecyl Alkyl mercaptan and 20g deionized water were stirred (stirring speed was 450r / min) and mixed evenly to obtain pre-emulsion II;

[0057] (3) 0.3g ammonium persulfate is dissolved in 5g deionized water and is mixe...

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Abstract

The invention belongs to the field of functional high polymer material, and discloses an emulsion-type polyacrylate pressure-sensitive adhesive, and a preparation method and application thereof. The method comprises the following steps: (1) evenly mixing deionized water, an initiator and a buffering agent under stirring conditions to obtain a kettle bottom solution; adding a preemulsion I and an initiator solution into the kettle bottom solution, and heating to react; continuously and dropwisely adding the initiator solution and a preemulsion I at the same time for 2-2.5 hours, heating to 83-85 DEG C, and keeping the temperature to react; (2) adding an emulsifier into the reaction kettle in the step (1), dispersing by stirring, continuously and dropwisely adding an initiator solution and a preemulsion II into the reaction kettle at the same time for 1-1.5 hours, adding an initiator solution, heating to 86-88 DEG C, keeping the temperature for 1-1.5 hours, cooling, regulating the pH value, filtering and discharging to obtain the emulsion-type polyacrylate pressure-sensitive adhesive. The pressure-sensitive adhesive has the advantages of wide molecular weight distribution and favorable comprehensive properties.

Description

technical field [0001] The invention belongs to the field of functional polymer materials and relates to an adhesive, in particular to an emulsion type polyacrylate pressure-sensitive adhesive and its preparation method and application. Background technique [0002] Pressure-sensitive adhesive is a kind of pressure-sensitive adhesive. During construction or use, a slight pressure and a short time can make it wet with the adherend quickly and produce a strong adhesive force. Its characteristics It is easy to bond, not difficult to peel off, and there will be no glue residue on the adherend after peeling off to cause pollution. The glue layer will not dry and solid in a long period of time, commonly known as self-adhesive. [0003] Compared with traditional solution-type pressure-sensitive adhesives, emulsion-type pressure-sensitive adhesives are more environmentally friendly, safer, and more convenient to use, and are increasingly valued by the market. According to statistic...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J133/08C08F220/18C08F220/14C08F2/24
Inventor 涂伟萍张炜祺王锋胡剑青
Owner SOUTH CHINA UNIV OF TECH