Method for manufacturing environment-friendly pressure sensitive adhesive material

A production method and pressure-sensitive adhesive technology, applied in the direction of adhesives, adhesive types, natural rubber adhesives, etc., to achieve the effects of improving coating production efficiency, good tolerance, and reducing overall costs

Inactive Publication Date: 2011-08-17
SUZHOU SIDIKE NEW MATERIALS SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a method for making an environment-friendly pressure-sensitive adhesive ma...

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Embodiment 1: The manufacture method of environment-friendly pressure-sensitive adhesive material mainly consists of the following steps:

[0031] The first step: first make solvent-based rubber pressure-sensitive adhesive, the formula of solvent-based rubber pressure-sensitive adhesive is:

[0032] raw material

parts by mass

Natural rubber (first-class smoked sheet rubber)

75

Styrene Butadiene Rubber (SBR-1502)

20

α-terpene resin

80

2402 phenolic resin

18

LDJ-240 neoprene rubber

4

MgO

2

ZnO

4

Antiaging agent RD

2

Vulcanization accelerator DM

0.1

120# gasoline

600ml

ethyl acetate

600ml

[0033] The preparation process of solvent-based rubber pressure-sensitive adhesive: (1) Plasticize natural and styrene-butadiene rubber on a rubber mixer, and then add anti-aging agent, tackifier, vulcanizing agent, etc. in turn for mixing. (2) Place the kn...

Embodiment 2

[0039] Embodiment 2: The manufacturing method of environment-friendly pressure-sensitive adhesive material mainly consists of the following steps:

[0040] The first step: first make solvent-based polyacrylate pressure-sensitive adhesive, the raw materials are: butyl acrylate (BA), methyl methacrylate (MMA), acrylic acid (AA), vinyl acetate (VAc), hydroxyethyl acrylate Esters, ethyl acetate, azobisisobutyronitrile, chain transfer agent dodecanethiol. The polymerization process is as follows: in a 500ml four-necked flask equipped with an electric stirrer, a reflux condenser, a thermometer and a dropping funnel, put all the monomers and solvents, and feed N 2 ; When the temperature rises to 80°C, the initiator azobisisobutyronitrile solution is added dropwise in batches, the reaction is kept for 6 hours, and the temperature is lowered to 50°C to obtain a solvent-based polyacrylate pressure-sensitive adhesive.

[0041] Step 2: In a closed environment, heat the solvent-based poly...

Embodiment 3

[0047]Embodiment three: the manufacture method of environment-friendly pressure-sensitive adhesive material, mainly is made up of following steps:

[0048] The first step: first make solvent-based polyacrylate pressure-sensitive adhesive, the raw materials are: butyl acrylate (BA), vinyl acetate, 2-ethylhexyl acrylate, hydroxyethyl acrylate, acrylic acid, toluene, ethyl acetate ester. The polymerization process is as follows: put monomers such as butyl acrylate, toluene, and ethyl acetate into a four-necked flask equipped with a reflux condenser, a thermometer, an air guide tube and a stirrer, and add the initiator cumene peroxidation dropwise when the reflux temperature is reached. Hydrogen, the time is two hours, continue to react for three hours, then add the initiator cumene hydroperoxide dropwise, continue to react for about two hours to obtain a colorless transparent viscous liquid.

[0049] Step 2: In a closed environment, heat the solvent-based polyacrylate pressure-s...

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PUM

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Abstract

The invention discloses a method for manufacturing an environment-friendly pressure sensitive adhesive material. The method mainly comprises the following steps of: 1, in a closed environment, heating solvent type pressure sensitive adhesive to the temperature of between 60 and 200 DEG C so that the solvent contained in the solvent type pressure sensitive adhesive is evaporated and 50 to 99.9 mass percent of pressure sensitive adhesive is obtained; 2, adding a curing agent into the pressure sensitive adhesive obtained in the step 1, and mixing the curing agent and the pressure sensitive adhesive uniformly by using a vibrating bar or a screw extruder; 3, coating; and 4, rolling. The evaporation time of the solvent during coating the pressure sensitive adhesive can be reduced, so that the coating production efficiency is greatly improved.

Description

technical field [0001] The invention relates to a production method of an environment-friendly pressure-sensitive adhesive material, belonging to the technical field of adhesive material preparation. Background technique [0002] Pressure-sensitive adhesive material is a kind of widely used material. It is a general term for tapes, double-sided tapes, protective films, labels and other products made by coating pressure-sensitive adhesives on substrates such as label paper and films. Pressure sensitive adhesive is the abbreviation of pressure sensitive adhesive, which is a kind of adhesive that is sensitive to pressure. Pressure-sensitive adhesives can be divided into rubber type and resin type according to the main resin composition. Rubber type can be divided into natural rubber and synthetic rubber. Resin type mainly includes polyacrylate, silicone and polyurethane. According to different dispersion media, it can be divided into water-based and solvent-based pressure-sens...

Claims

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Application Information

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IPC IPC(8): C09J7/02C09J7/04C09J107/00C09J109/06C09J145/00C09J161/06C09J111/00C09J11/06C09J133/04
Inventor 金闯
Owner SUZHOU SIDIKE NEW MATERIALS SCI & TECH
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