a pressure sensitive adhesive

A pressure-sensitive adhesive and mass ratio technology, applied in the field of pressure-sensitive adhesives, can solve the problems of pressure-sensitive adhesives such as poor adhesion and toughness, and achieve improved bonding performance, enhanced colloidal internal cohesion, and reduced phase separation Effect

Active Publication Date: 2019-12-17
深圳市昌元兴科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention: Aiming at the problem of poor adhesion and toughness of commonly used pressure-sensitive adhesives at present, improve a pressure-sensitive adhesive

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0022] Preparation of self-made adhesive: in a water bath at 45~60°C, take peach gum and add urea and deionized water in a mass ratio of 1:1~3:10, mix with urea and deionized water, stir at 400~600r / min for 25~50min, filter, and take the filter residue in The ball mill tank is mixed with absolute ethanol at a mass ratio of 5:0.1~0.3, and zirconia ball milling beads are added at a ball mass ratio of 20~30:1, and ball milled at 300~500r / min for 30~50min to obtain ball abrasives. According to the mass ratio of 1:3~6:2, add glutinous rice juice and humic acid to mix, stir and mix at 300~500r / min for 1~3h, vacuumize and evaporate at 55~70℃ to 30~45% of the original volume, that is, Homemade sticky.

[0023] Wetting agent: Mix cetyltrimethylammonium bromide and sodium laureth sulfate at a mass ratio of 5:1~3 to obtain a wetting agent.

[0024] Antioxidant: Mix tert-butylhydroquinone and pentaerythritol at a mass ratio of 5-8:1 to obtain an antioxidant.

[0025] Initiator: any one ...

Embodiment 1

[0038] Preparation of self-made adhesive: In a water bath at 45°C, take peach gum and mix it with urea and deionized water at a mass ratio of 1:1:10, stir at 400r / min for 25 minutes, filter, and take the filter residue in a ball mill tank at a mass ratio of 5:0.1 Add anhydrous ethanol and mix, add zirconia ball milling beads according to the mass ratio of ball to material 20:1, and mill at 300r / min for 30min to obtain ball milling material, take the ball milling material and add glutinous rice juice and humic acid at a mass ratio of 1:3:2 to mix, Stir and mix at 300r / min for 1 hour, vacuum evaporate at 55°C to 30% of the original volume, and obtain self-adhesive.

[0039] Wetting agent: Mix cetyltrimethylammonium bromide and sodium laureth sulfate at a mass ratio of 5:1 to obtain a wetting agent.

[0040] Antioxidant: Mix tert-butylhydroquinone and pentaerythritol in a mass ratio of 5:1 to obtain an antioxidant.

[0041] Initiator: potassium persulfate.

[0042] Mixed monome...

Embodiment 2

[0054] Preparation of self-made adhesive: In a water bath at 50°C, take peach gum and add urea and deionized water to mix at a mass ratio of 1:2:10, stir at 500r / min for 40min, filter, and take the filter residue in a ball mill tank at a mass ratio of 5:0.2 Add anhydrous ethanol and mix, add zirconia ball milling beads according to the mass ratio of ball to material 25:1, and mill at 400r / min for 40min to obtain ball milling material, take the ball milling material and add glutinous rice juice and humic acid at a mass ratio of 1:4:2 to mix, Stir and mix at 400r / min for 2 hours, vacuum evaporate at 60°C to 35% of the original volume to obtain self-adhesive.

[0055] Wetting agent: Mix cetyltrimethylammonium bromide and sodium laureth sulfate at a mass ratio of 5:2 to obtain a wetting agent.

[0056] Antioxidant: Mix tert-butyl hydroquinone and pentaerythritol at a mass ratio of 6:1 to obtain an antioxidant.

[0057] Initiator: sodium persulfate.

[0058] Mixed monomer: Mix ac...

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Abstract

The invention discloses a pressure-sensitive adhesive and belongs to the technical field of pressure-sensitive adhesives. A self-made adhesive is prepared from peach gum, sticky rice juice and the like, wherein humic acid is a mixture containing carboxyl and phenolic hydroxyl groups. The pressure-sensitive adhesive can provide weak acidic environment action. Active groups such as carboxyl and aldehyde groups can play a bridging action in the bonding process, so that the bonding strength is further enhanced. By taking methoxy polyethylene glycol of a single functional group as a long suspensionchain, composite filler is introduced into a polyurethane component, so that the separating degree of microphases of soft and hard sections in the polyurethane component is reduced. Coconut shells are crushed, acid-impregnated and steam-detonated to be subjected to fermentation with gelatin, casein and lactobacillus bulgaricus, so that the adhesive force and toughens of a pressure-sensitive adhesive system are improved. The invention solves the problem that a common pressure-sensitive adhesive is poor in adhesive force and toughness.

Description

technical field [0001] The invention belongs to the technical field of pressure-sensitive adhesives, and in particular relates to a pressure-sensitive adhesive. Background technique [0002] The tape is mainly composed of a substrate and a layer of adhesive coated on one or both surfaces of the substrate. By forming a bond between the adhesive molecules on the substrate and the surface molecules of the article, the tape is only adhered to on the surface of the item. Divided by function, tapes can be divided into high temperature tapes, pressure sensitive tapes, insulating tapes, special tapes, die-cut tapes, etc. Among them, the pressure-sensitive tape refers to the use of pressure-sensitive adhesive as the adhesive, commonly known as self-adhesive tape, which can be easily adhered when using a small pressure, can achieve an adhesive effect in a short time, and is not easy to remain on the adhered item after peeling off. It can be re-corrected when it is wrongly pasted, an...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J103/02C09J105/00C09J197/00C09J175/08C09J11/06C09J11/08
CPCC08L2205/035C09J11/06C09J11/08C09J103/02C09J175/08C08L5/00C08L97/005C08L75/08C08L91/00C08K5/13C08K5/053
Inventor 胡次兵陈建春庞成荣
Owner 深圳市昌元兴科技有限公司
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