Solvent-free unfoamed polyurethane structured adhesive and preparation method thereof

A technology for structural adhesives and foamed polyurethane, applied in polyurea/polyurethane adhesives, adhesive additives, non-polymer adhesive additives, etc., can solve the problem of environmental pollution caused by two-component polyurethane structural adhesives Narrow adjustable range, short operating time, etc., to avoid foaming, improve reliability, and easy operation

Inactive Publication Date: 2017-02-22
YANTAI DARBOND TECH
View PDF7 Cites 10 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problems of existing two-component polyurethane structural adhesives such as polluting the environment, short operation

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

Example Embodiment

[0031] Example 1

[0032] Described A component is made up of the raw material of following mass parts:

[0033] Castor oil: 20 servings;

[0034] AC-006: 25 copies;

[0035] Microsilica: 47 parts;

[0036] Molecular sieve: 6 parts;

[0037] Di(2-ethylhexyl) phthalate: 2 parts;

[0038] Described B component is made up of the raw material of following mass parts:

[0039] Polymethylene polyphenyl isocyanate PM200: 100 parts;

[0040] A method for preparing the polyurethane structural adhesive of the present embodiment, comprising the following steps:

[0041] ①Preparation of component A: Take 20 parts of castor oil, 25 parts of AC-006, 47 parts of silicon micropowder, and 2 parts of bis(2-ethylhexyl) phthalate, slowly pour them into a three-roll mill, grind and disperse them evenly, Transfer the uniformly ground mixture into the mixing reaction kettle, add 6 parts of molecular sieves to the mixing reaction kettle, and vacuumize and stir for 60 minutes under the state of...

Example Embodiment

[0045] Example 2

[0046] Described A component is made up of the raw material of following mass parts:

[0047] T400: 20 servings;

[0048] Castor Oil: 10

[0049] Calcium powder: 50 servings;

[0050] Molecular sieve: 6 parts;

[0051] Oxazolidine water remover: 2 parts;

[0052] Di(2-ethylhexyl) phthalate: 4 parts;

[0053] Xylene formaldehyde resin: 3 parts;

[0054] Hydrophobic fumed silica R8200: 4 parts;

[0055] 4,4-bis(sec-butylamino)-diphenylmethane: 1 part;

[0056] Described B component is made up of the raw material of following mass parts:

[0057] Polymethylene polyphenyl isocyanate VK10L: 100 parts;

[0058] A method for preparing the polyurethane structural adhesive of the present embodiment, comprising the following steps:

[0059] ①Preparation of component A: Take 10 parts of castor oil, 20 parts of T400, 50 parts of calcium powder, 4 parts of bis(2-ethylhexyl) phthalate and 3 parts of xylene formaldehyde resin and slowly pour them into a three-rol...

Example Embodiment

[0063] Example 3

[0064] Described A component is made up of the raw material of following mass parts:

[0065] AC-006: 20 copies;

[0066] SOVERMOL860: 20 copies;

[0067] Microsilica: 47 parts;

[0068] Molecular sieve: 5 parts;

[0069] Oxazolidine water remover: 1 part;

[0070] Di(2-ethylhexyl) phthalate: 3 parts;

[0071] Xylene formaldehyde resin: 3 parts;

[0072] Hydrophobic fumed silica R202: 1 part;

[0073] Described B component is made up of the raw material of following mass parts:

[0074] Polymethylene polyphenyl isocyanate Rubinate 9016: 100 parts;

[0075] A method for preparing the polyurethane structural adhesive of the present embodiment, comprising the following steps:

[0076] ①Preparation of component A: Take 20 parts of AC-006, 20 parts of SOVERMOL860, 47 parts of silicon micropowder, 3 parts of bis(2-ethylhexyl) phthalate and 3 parts of xylene formaldehyde resin and slowly pour them into three rolls for grinding Grind and disperse uniformly i...

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

No PUM Login to view more

Abstract

The invention relates to a solvent-free unfoamed polyurethane structured adhesive which contains a component A and a component B, wherein the mass ratio of the component A to the component B is 4:1; the component A contains the following raw materials in parts by mass: 30-45 parts of polyol, 50-47 parts of packing, 8-6 parts of a water removing agent, 4-2 parts of phthalic acid bi(2-ethylhexyl) ester, 3-0 parts of xylene formaldehyde resin, 4-0 parts of lyophobic gaseous silicon and 1-0 parts of an amino curing agent; and the component B contains the following raw material in part by mass: 100 parts of polymethylene polyphenyl isocyanate. The solvent-free unfoamed polyurethane structured adhesive provided by the invention is small in moisture influence, and is barely affected by ambient humidity, a foaming phenomenon in the gluing curing process can be avoided, and later reliability can be greatly improved.

Description

technical field [0001] The invention belongs to the technical field of polyurethane adhesives and preparation methods thereof, and in particular relates to a solvent-free and non-foaming polyurethane structural adhesive and a preparation method thereof. Background technique [0002] Polyurethane adhesive molecules contain a large number of polar groups, such as: highly active isocyanate groups (-NCO) and carbamate groups (-NHCOO-), so it can be compatible with most materials. Good bonding performance, so its market application is quite extensive: the use of similar adhesives in my country is increasing every year, but they are mainly solvent-based. With the development of society, human awareness of environmental protection is gradually improving, and environmentally friendly Solvent-free, gradually replacing solvent-based adhesives. Solvent-free adhesives have become a research hotspot due to their advantages of environmental protection, non-toxicity, economy, low odor, simpl...

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
IPC IPC(8): C09J175/14C09J175/04C09J11/06C09J11/04C08G18/76C08G18/67
CPCC08G18/36C08G18/7664C08K3/26C08K3/36C08K5/12C08K7/26C08K2003/265C09J11/04C09J11/06C09J175/04C09J175/14
Inventor 刘志培王建斌陈田安牛青山
Owner YANTAI DARBOND TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap