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Method for preparing polystyrene-polyisoprene-polystyrene ternary segmented copolymer hot melt pressure-sensitive adhesive

A polyisoprene, hot-melt pressure-sensitive adhesive technology, applied in the direction of mineral oil hydrocarbon copolymer adhesives, adhesives, film/sheet adhesives, etc., can solve the problem of poor weather resistance and aging resistance, The quality of pressure-sensitive adhesives is not easy to stabilize, and the performance of oil and organic solvents is poor, so as to achieve the effects of good mechanical strength, low cost and excellent performance.

Inactive Publication Date: 2010-05-19
SHANGHAI INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

So far, the existing tackifying resins have low bonding performance, high cost, poor weather resistance and aging resistance, unstable pressure-sensitive adhesive quality, and poor resistance to plasticizers, oils and organic solvents to varying degrees. and other shortcomings

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] (1), according to the mass ratio of 35: 35: 30: 0.5, weigh polystyrene-polyisoprene-polystyrene ternary block copolymer, coumarone resin and C 5 1375 petroleum resin composite tackifying resin, grease softener naphthenic oil and antioxidant tetrakis [β-(3',5'-di-tert-butyl-4'-hydroxyphenyl) propionate] pentaerythritol ester at 300rpm Stir at 10 min / min until the mixture is uniform;

[0025] Among them, coumarone resin and C 5 The mass ratio of 1375 petroleum resin composite tackifying resin is 5:2;

[0026] (2) Put the mixture in step (1) on a heater to stir and melt, and control the temperature at 180°C until the glue is transparent.

[0027] (3) Pour the glue solution obtained in step (2) into a coating machine heated to 120°C, apply release paper after coating, and the obtained product is SIS-based hot-melt pressure-sensitive adhesive.

[0028] The initial tack, 180°C peel strength, stickiness and softening point of the strip obtained in Example 1 can be tested by...

Embodiment 2

[0030] In step (1), with coumarone resin and C 5 1375 petroleum resin composite tackifying resin was changed to coumarone resin and terpene resin composite tackifying resin, other conditions and steps were exactly the same as in Example 1, the initial adhesion of the obtained adhesive strip corresponded to 24# steel balls, and the peel strength at 180°C was 0.76 kN / m, stickiness over 24h, softening point 91°C;

[0031] Wherein the mass ratio of coumarone resin and terpene resin composite tackifying resin is by 5: 2;

Embodiment 3

[0033] In step (1), with coumarone resin and C 5 1375 Petroleum Resin Composite Tackifying Resin Changed to Coumarone Resin and Rosin 100J-3 # Resin composition, grease softener naphthenic oil is changed to industrial white oil, other conditions and steps are exactly the same as in Example 1, the initial adhesion of the obtained rubber strip corresponds to 32# steel balls, the peel strength at 180°C is 0.2kN / m, and the stickiness 4h, the softening point is 96°C;

[0034] Among them, coumarone resin and rosin 100J-3 # The mass ratio of resin is 5:2;

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PUM

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Abstract

The invention discloses a method for preparing polystyrene-polyisoprene-polystyrene ternary segmented copolymer hot melt pressure-sensitive adhesive, which comprises the following steps: orderly weighing polystyrene-polyisoprene-polystyrene ternary segmented copolymer, composite tackifier resin, softening agent and antioxidant in a mass ratio, and stirring the mixture at the rotating speed of 300 to 600 rpm / min; heating, stirring and melting the mixture till forming transparent glue solution at the temperature of between 150 and 180 DEG C after uniformly mixing; and then placing the transparent glue solution on a coating machine preheated at the temperature of between 80 and 120 DEG C, and adhering a piece of isolation paper after coating to obtain the polystyrene-polyisoprene-polystyrene ternary segmented copolymer hot melt pressure-sensitive adhesive. The method has the advantages of available raw materials, low cost, simplicity and feasibility, environmental protection, excellent comprehensive performance, and suitability for scale industrial production, and provides a new path for the preparation of the hot melt pressure-sensitive adhesive.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, and in particular relates to a preparation method of a polystyrene-polyisoprene-polystyrene ternary block copolymer hot-melt pressure-sensitive adhesive. Background technique [0002] Polystyrene-polyisoprene-polystyrene ternary block copolymer hot-melt pressure-sensitive adhesive has the advantages of high strength, low viscosity, stability, light color, low odor, good low temperature resistance and low cost. Widely used in diapers, women's products, double-sided tapes, labels, packaging, medical and health, book packaging, surface protective films, wood processing, wallpaper and shoemaking and other fields. [0003] Generally, polystyrene-polyisoprene-polystyrene ternary block copolymer hot melt pressure-sensitive adhesives are composed of polystyrene-polyisoprene-polystyrene ternary block copolymer, tackifier , Softeners, antioxidants, fillers and other raw materials, most of the ta...

Claims

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Application Information

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IPC IPC(8): C09J7/04C09J153/02C09J157/02C09J147/00C09J193/04
Inventor 李丽华王霞贾润萍
Owner SHANGHAI INST OF TECH
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