Solvent-free adhesive as well as preparation method and application thereof

An adhesive and solvent-free technology, applied in the direction of adhesive additives, polymer adhesive additives, non-polymer adhesive additives, etc., can solve the problems of high cost, complicated preparation process, instability, etc., and achieve high performance Stable, easy to operate, good hardness effect

Pending Publication Date: 2020-11-13
QINGDAO AIR NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Nano-core-shell particles modified epoxy resin toughened epoxy resin This chemical modification method has obvious toughening effect and still has high shear strength under high temperature conditions, but it uses chemically modified epoxy toughener , the chemically modified epoxy toughening agent has many disadvantages such as complex preparation process, high cost and instability

Method used

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  • Solvent-free adhesive as well as preparation method and application thereof
  • Solvent-free adhesive as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] A solvent-free adhesive, including A component and B component, A component includes the following raw materials by weight: 60 parts of epoxy resin, 5 parts of epoxy toughening agent, 10 parts of reactive diluent, 0.3 1 part of reaction accelerator, 0.5 part of thixotropic agent, 0.2 part of substrate wetting agent, 6 parts of wetting and dispersing agent, 18 parts of pigment and filler;

[0031] Component B includes the following raw materials in parts by weight: 95 parts of modified epoxy curing agent and 5 parts of thixotropic agent.

[0032] It should be noted that, in the examples of the present application, the viscosity of the epoxy resin is lower than 10000 mPa·s (25° C.), and epoxy resin E-44 is used as the epoxy resin in the examples of the present application.

[0033] In the embodiment of this application, the epoxy toughening agent can use carboxyl-terminated liquid nitrile rubber (CTBN), amine-terminated liquid nitrile rubber (ATBN), acrylic rubber, silico...

Embodiment 2

[0050] A solvent-free adhesive, including A component and B component, A component includes the following raw materials by weight: 52 parts of epoxy resin, 8 parts of epoxy toughening agent, 8 parts of reactive diluent, 0.2 1 part of reaction accelerator, 0.5 part of thixotropic agent, 0.3 part of substrate wetting agent, 8 parts of wetting and dispersing agent, 23 parts of pigment and filler;

[0051] Component B includes the following raw materials in parts by weight: 90 parts of modified epoxy curing agent and 10 parts of thixotropic agent.

[0052] It should be noted that, in the embodiment of the present application, the viscosity of the epoxy resin is lower than 10000 mPa·s (25° C.), and epoxy resin 170 is used as the epoxy resin in the embodiment of the present application.

[0053] In the embodiment of this application, the epoxy toughening agent can use carboxyl-terminated liquid nitrile rubber (CTBN), amine-terminated liquid nitrile rubber (ATBN), acrylic rubber, sil...

Embodiment 3

[0068] A solvent-free adhesive, including A component and B component, A component includes the following raw materials by weight: 40 parts of epoxy resin, 6 parts of epoxy toughening agent, 10 parts of reactive diluent, 0.3 parts 1 part of reaction accelerator, 0.5 part of thixotropic agent, 0.2 part of substrate wetting agent, 9 parts of wetting and dispersing agent, 34 parts of pigment and filler;

[0069] Component B includes the following raw materials in parts by weight: 92 parts of modified epoxy curing agent and 8 parts of thixotropic agent.

[0070] It should be noted that, in the examples of the present application, the viscosity of the epoxy resin is lower than 10000 mPa·s (25° C.), and the epoxy resin in the examples of the present application is epoxy resin NHR-154.

[0071] In the embodiment of this application, the epoxy toughening agent can use carboxyl-terminated liquid nitrile rubber (CTBN), amine-terminated liquid nitrile rubber (ATBN), acrylic rubber, silic...

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Abstract

The invention provides a solvent-free adhesive as well as a preparation method and application thereof, the solvent-free adhesive comprises a component A and a component B, and the component A comprises the following raw materials: epoxy resin, a reactive diluent and an epoxy toughening agent; the component B comprises a modified epoxy curing agent; the epoxy toughening agent comprises one or moreof liquid rubber, hydroxyl-terminated aliphatic hyperbranched polyester, hyperbranched epoxy resin and a carbamate prepolymer. According to the solvent-free adhesive, the epoxy toughening agent is contained in the components, by adding the epoxy toughening agent, the internal stress of the adhesive can be reduced, the toughness of the adhesive can be improved, the high and low temperature resistance of the adhesive can be improved, and the application range of the adhesive is widened.

Description

technical field [0001] The invention relates to the technical field of adhesives, in particular to a solvent-free adhesive and its preparation method and application. Background technique [0002] In recent years, with the development of my country's economy and society and the continuous acceleration of urbanization, urban rail transit construction has advanced by leaps and bounds. In the past ten years, 30 cities have newly opened urban rail transit operations. It is estimated that by the end of 2025, the national urban rail transit operation scale will More than 10,000 kilometers. [0003] PVC floor refers to a floor decoration material made of polyvinyl chloride resin, additives and fillers through appropriate processes. It has the characteristics of environmental protection and regeneration, wear resistance and anti-skid, sound absorption and antibacterial, waterproof and fireproof, and convenient construction. It has been widely used in Stadiums, schools, shopping mall...

Claims

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Application Information

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IPC IPC(8): C09J163/00C09J11/08C09J11/04
CPCC09J163/00C09J11/08C09J11/04C08L2201/02C08K2003/2227C08K2003/387C08K2003/3045C08K2003/265C08K2003/2241C08L63/00C08L13/00C08L9/02C08L33/04C08L83/04C08L67/00C08L75/04C08K3/36C08K3/22C08K3/34C08K3/38C08K3/30C08K3/26
Inventor 郭焱李灿刚温喜梅王伟邵春妍
Owner QINGDAO AIR NEW MATERIALS
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