Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Modified composite adhesive and preparation method thereof

A composite adhesive and modification technology, applied in the direction of adhesive additives, polymer adhesive additives, non-polymer adhesive additives, etc., can solve problems such as physical hazards, achieve enhanced cohesion, and improve adhesiveness And water resistance, solid content without precipitation effect

Inactive Publication Date: 2019-09-27
中著(杭州)知识产权运营有限公司
View PDF0 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Trialdehyde glue itself has free aldehydes and free phenols, which will release harmful substances during production, transportation, and use, which are more harmful to people's health

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0041] The preparation method of described modified composite adhesive comprises the steps:

[0042] Step S1, add acetone into the reaction kettle, start stirring, set the stirring speed to 300r / min, raise the temperature to 42-48°C, add curing agent and chitosan, stir for 10-12min, and obtain component A;

[0043] Step S2, adding the filler into the modified polyurethane, stirring and mixing at 300r / min for 18-20min, to obtain component B;

[0044] Step S3, mix component A and component B, stir at 300r / min for 5-7min, then add dioctyl phthalate, increase the stirring speed to 450r / min, and continue stirring for 26-28min to obtain a modified compound adhesive.

Embodiment 1

[0046] A modified composite adhesive prepared from the following raw materials in parts by weight: 40 parts of modified polyurethane, 50 parts of curing agent, 15 parts of acetone, 30 parts of filler, 3 parts of chitosan, and dioctyl phthalate Fat 1 part;

[0047] Described solidifying agent comprises aluminum ammonium sulfate, magnesium sulfate, ammonium chloride, and aluminum ammonium sulfate, magnesium sulfate, ammonium chloride are mixed according to the ratio of mass 10:0.8:16;

[0048] The filler is made by mixing nano-titanium dioxide, nano-cellulose, and basalt fiber in a mass ratio of 1:0.5:0.1;

[0049] The modified composite adhesive is prepared by the following steps:

[0050] Step S1, add acetone into the reaction kettle, start stirring, set the stirring speed to 300r / min, raise the temperature to 42°C, add curing agent and chitosan, stir for 10min, and obtain component A;

[0051] Step S2, adding the filler into the modified polyurethane, stirring and mixing at...

Embodiment 2

[0054] A modified composite adhesive prepared from the following raw materials in parts by weight: 45 parts of modified polyurethane, 55 parts of curing agent, 18 parts of acetone, 33 parts of filler, 4 parts of chitosan, and dioctyl phthalate 1.5 parts fat;

[0055] Described solidifying agent comprises aluminum ammonium sulfate, magnesium sulfate, ammonium chloride, and aluminum ammonium sulfate, magnesium sulfate, ammonium chloride are mixed according to the ratio of mass 10:0.9:18;

[0056] The filler is made by mixing nano-titanium dioxide, nano-cellulose, and basalt fiber in a mass ratio of 1:0.5:0.1;

[0057] The modified composite adhesive is prepared by the following steps:

[0058] Step S1, add acetone to the reaction kettle, start stirring, set the stirring speed to 300r / min, raise the temperature to 45°C, add curing agent and chitosan, and stir for 11 minutes to obtain component A;

[0059] Step S2, adding the filler into the modified polyurethane, stirring and m...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
sizeaaaaaaaaaa
particle diameteraaaaaaaaaa
viscosityaaaaaaaaaa
Login to View More

Abstract

The invention discloses a modified composite adhesive. The adhesive is prepared from the following raw materials in parts by weight: 40-50 parts of modified polyurethane, 50-60 parts of a curing agent, 15-20 parts of acetone, 30-36 parts of filler, 3-5 parts of chitosan, and 1-2 parts of dioctyl phthalate. The invention also discloses a preparation method of the modified composite adhesive. The method comprises the following steps: step S1, mixing the acetone, the curing agent and the chitosan to obtain a component A; step S2, mixing the filler and the modified polyurethane to obtain a component B; step S3, mixing the component A and the component B, then adding the dioctyl phthalate, and uniformly stirring to obtain the modified composite adhesive. According to the modified composite adhesive and the preparation method thereof, any aldehyde-containing substance is not introduced in the process of preparing the modified composite adhesive; through the modification of the adhesive material polyurethane, the adhesive has excellent bonding strength; in addition, through the addition of the filler, the bonding strength of the adhesive can be improved, the viscosity of the adhesive can be reduced, and coating is easier.

Description

technical field [0001] The invention belongs to the technical field of adhesives, and in particular relates to a modified composite adhesive and a preparation method thereof. Background technique [0002] Through the adhesion and cohesion of the interface, the natural or synthetic, organic or inorganic substances that can connect two or more parts or materials together are collectively referred to as adhesives. With the growing of the wood-based panel industry, wood composite materials are widely used in the fields of house construction and home furnishing. For wood composites, the use of adhesives is essential. [0003] However, under the background that wood composite materials are widely used in house construction and home furnishing, etc., which are closely related to human life, the adhesives obtained by the existing preparation methods are still mainly "trialdehyde" glues, that is, urea-formaldehyde resin adhesives, Phenolic resin adhesives and melamine resin adhesiv...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C09J175/04C09J11/04C09J11/06C09J11/08C08G18/64C08G18/66C08G18/48C08G18/34
CPCC08G18/348C08G18/4833C08G18/6446C08G18/6692C08K2003/2241C08K2003/3063C08K2201/011C09J11/04C09J11/06C09J11/08C09J175/04C08L5/08C08L1/04C08K13/04C08K3/30C08K3/28C08K3/22C08K7/10C08K5/12
Inventor 周佳佳
Owner 中著(杭州)知识产权运营有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com