Improved glue and PET base material co-granulation type protective film and manufacturing method thereof

A production method and improved technology, applied in the direction of adhesives, adhesive types, pressure-sensitive films/sheets, etc., can solve the problem of harsh storage and transportation conditions, high organic solvent prices, and difficult recycling of protective films/adhesive tapes, etc. The problem is to achieve a win-win situation of economic and social environmental benefits, the preparation method is simple and feasible, and the effect of resisting the influence of environmental humidity is achieved.

Pending Publication Date: 2020-05-08
TECH SUN INT KUNSHAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] 2. As solid hazardous waste, it should be handled by a qualified professional institution: the cost of this kind of treatment is high, and the price of treatment fee per ton ranges from 4,000 yuan to 5,000 yuan, and the storage and transportation conditions are harsh, which is difficult for ordinary enterprises to bear;
The disadvantages of this treatment method are: due to the use of organic solvents, there are hidden fire safety and occupational health safety hazards; the high price of organic solvents leads to unreasonable economics, and the organic solvents after use also have problems to be treated
However, in view of the huge differences between PET and various pressure-sensitive adhesives in chemical composition, molecular structure, molecular weight, modulus, melt index, surface free energy, and solubility parameters, various protective materials based on PET It is difficult to recycle the film/adhesive tape through co-extrusion granulation, so how to solve the compatibility of PET and the pressure-sensitive adhesive coating coated on it during extrusion granulation It is the key to solve the production and research and development of PET substrate co-granulation protective film
[0015] The use of polyester pressure-sensitive polymer materials can effec

Method used

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  • Improved glue and PET base material co-granulation type protective film and manufacturing method thereof
  • Improved glue and PET base material co-granulation type protective film and manufacturing method thereof
  • Improved glue and PET base material co-granulation type protective film and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0088] Example 1

[0089] A method for making a protective film that can be co-granulated with improved glue and PET substrate:

[0090] A. Chemical synthesis of improved saturated polyester pressure-sensitive adhesives treated with solubilization and grafting:

[0091] 1. Polymerization of compatibilizer:

[0092] 1) Mix accurately measured 90Kg of caprolactone monomer, 3.0Kg of acrylic acid, 3.0Kg of hydroxyethyl acrylate and 60Kg of xylene in the reaction kettle and heat up to 140°C-150°C to stabilize the reflux for 10 minutes above;

[0093] 2) Dissolve 0.50Kg stannous octoate with 10Kg xylene and add it dropwise to the reaction kettle within 10 minutes; the preparation container and dropping tank of stannous octoate are rinsed twice with 10Kg xylene respectively, and the flushing solution is collected in In the reactor;

[0094] 3) Continue to keep the temperature at 140°C-150°C to stabilize the reflux for more than 15 minutes;

[0095] 4) The polymerization time is ...

Example Embodiment

[0123] Example 2

[0124] A method for making a protective film that can be co-granulated with improved glue and PET substrate:

[0125]A. Preparation of improved saturated polyester pressure-sensitive adhesive coating solution for solubilization and grafting:

[0126] 1) 6Kg Cymel303 type methyl etherified melamine resin was stirred and dissolved with 10Kg of ethyl acetate to obtain a crosslinking agent dilution;

[0127] 2) Slowly add 40Kg of the solubilized and graft-modified modified saturated polyester pressure-sensitive adhesive into 24Kg of ethyl acetate under stirring, and continue stirring for more than 30 minutes to obtain the glue dilution;

[0128] 3) Add the crosslinking agent diluent and 700g of tributyl citrate to the glue diluent under stirring, and continue to stir for more than 30 minutes to obtain the improved saturated polyester pressure-sensitive adhesive with solubilization and grafting treatment. agent coating liquid;

[0129] B. Coating of modified s...

Example Embodiment

[0141] Example 3

[0142] A method for making a double-sided protective film that can be co-granulated with improved glue and PET substrate:

[0143] A. Preparation of improved saturated polyester pressure-sensitive adhesive coating solution for solubilization and grafting:

[0144] 1) Stir and dissolve 10Kg of Cymel303 type methyl etherified melamine resin with 10Kg of ethyl acetate to obtain a crosslinking agent dilution;

[0145] 2) Slowly add 50Kg of the solubilized and grafted saturated polyester pressure-sensitive adhesive to 40Kg of ethyl acetate under stirring, and continue stirring for more than 30 minutes to obtain the glue dilution;

[0146] 3) Add the crosslinking agent diluent and 875g of tributyl citrate to the glue diluent under stirring, and continue to stir for more than 30 minutes to obtain the improved saturated polyester pressure-sensitive adhesive with solubilization and grafting treatment. agent coating liquid;

[0147] B. Coating of modified saturated...

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Abstract

The invention discloses an improved glue and PET base material co-granulation type protective film and a manufacturing method thereof. The protective film comprises a PET base material, the surface ofthe PET base material subjected to corona treatment is coated with a moderately cross-linked improved saturated polyester pressure-sensitive adhesive coating subjected to solubilization and graft modification treatment, a release film can be attached to the moderately cross-linked improved saturated polyester pressure-sensitive adhesive coating subjected to solubilization and graft modification treatment, and the improved saturated polyester pressure-sensitive adhesive subjected to solubilization and graft modification treatment in the moderately cross-linked improved saturated polyester pressure-sensitive adhesive coating subjected to solubilization and graft modification treatment comprises graft-modified saturated polyester macromolecules, polycaprolactone and polyacrylate components.The prepared pressure-sensitive adhesive is excellent in adhesive property and good in edge bearing property compared with a traditional protective film preparation process, and after the pressure-sensitive adhesive is used, the waste protective film can be directly extruded and granulated to obtain reusable novel plastic particles, so subsequent reutilization is convenient.

Description

technical field [0001] The invention relates to the field of pressure-sensitive adhesive products, in particular to an improved adhesive and PET base material co-granulation protective film and a manufacturing method thereof. Background technique [0002] Pressure-sensitive adhesive products can exhibit viscosity without heating or using solvents, and are widely used in die-cutting, electronics, medicine, optics, electroplating protection, and material processing. [0003] At present, the protective film / adhesive tape is prepared by coating a pressure-sensitive adhesive on a substrate with a certain surface free energy, drying, cross-linking and curing, and then performing an anti-adhesive treatment on the adhesive layer. The pressure-sensitive adhesive layer used in the protective film / adhesive tape is generally composed of PSA such as poly(meth)acrylate, rubber, polyurethane or silicone. These pressure-sensitive adhesive layers are usually insoluble and insoluble. The mel...

Claims

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Application Information

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IPC IPC(8): C09J7/25C09J7/38C09J7/40C09J151/08
CPCC09J7/385C09J7/255C09J7/40C09J151/08C09J2467/006
Inventor 潘成诚张艮汪洋刘影颖
Owner TECH SUN INT KUNSHAN
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