Primer glue for polyurethane structural adhesive, preparation method and applications thereof

A technology of structural adhesive and polyurethane, which is applied in the direction of polyurea/polyurethane adhesive, surface pretreatment bonding method, adhesive, etc. It can solve the problems of glue opening and falling off, so that it is not easy to fall off or shift, and improve the bonding force , not easy to aging effect

Active Publication Date: 2020-01-03
BEIJING HANGBO NEW MATERIAL TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The main purpose of the present invention is to provide a primer for polyurethane structural adhesives and its preparation method and application, to solve the problems of shedding

Method used

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  • Primer glue for polyurethane structural adhesive, preparation method and applications thereof
  • Primer glue for polyurethane structural adhesive, preparation method and applications thereof
  • Primer glue for polyurethane structural adhesive, preparation method and applications thereof

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preparation example Construction

[0039] The embodiment of the present invention also provides a method for preparing a primer for polyurethane structural adhesives: it includes the following steps: by mass percentage, at room temperature, 10 to 20% of N-(β-aminoethyl Base-γ-aminopropyl)trimethoxysilane, 10-30% epoxy 3-(2,3-epoxypropoxy)propyltrimethoxysilane, 10-30% acryloxy γ -(Methacryloyloxy)propyltrimethoxysilane, 19.5-69.5% isopropanol and 0.1-1% nano-carbon black are hydrolyzed, after mixing, condensation reaction is carried out at 90-120°C to obtain a primer glue.

[0040] The raw materials of the primer of the present invention contain multiple coupling agents. Before mixing, the above components are hydrolyzed at room temperature to form hydroxyl groups that can undergo condensation reactions. The higher the degree of hydrolysis, the more conducive to later condensation. reaction, and then condensed at high temperature to form a coupling agent containing multiple functional groups. The condensation ...

Embodiment 1

[0088] A primer for polyurethane structural adhesives, which is made from the following raw materials in mass percent: N-(β-aminoethyl-γ-aminopropyl) trimethoxysilane 10%, epoxy 3-( 2,3-glycidyloxy)propyltrimethoxysilane 30%, acryloyloxy γ-(methacryloyloxy)propyltrimethoxysilane 20%, isopropanol 39.5% and nano carbon black 0.5 %.

[0089] The preparation method of the primer comprises: firstly hydrolyzing the above components separately at normal temperature, and then mixing all the components uniformly at 100° C. to carry out condensation reaction.

Embodiment 2

[0091] A primer for polyurethane structural adhesives, which is made from the following raw materials in mass percent: N-(β-aminoethyl-γ-aminopropyl) trimethoxysilane 15%, epoxy 3-( 2,3-glycidyloxy)propyltrimethoxysilane 20%, acryloyloxy γ-(methacryloyloxy)propyltrimethoxysilane 10%, isopropanol 54.9.% and nano carbon black 0.1%.

[0092] The preparation method of the primer comprises: firstly hydrolyzing the above components separately at room temperature, and then mixing all the components uniformly at 90° C. to carry out condensation reaction.

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Abstract

The invention relates to a primer glue for a polyurethane structural adhesive, a preparation method and applications thereof, wherein the raw materials comprise, by mass, 10-20% of N-(beta-aminoethyl-gamma-aminopropyl)trimethoxysilane, 10-30% of epoxy group 3-(2,3-epoxypropoxy)propyltrimethoxysilane, 10-30% of acryloyloxy gamma-(methacryloyloxy) propyltrimethoxysilane, 19.5-69.5% of isopropanol and 0.1-1% of nanometer carbon black. The invention further provides a sliding rail for bonding a window body by using the polyurethane structural adhesive and the primer glue. According to the invention, by matching the polyurethane structural adhesive and the primer glue, the problems of easy shedding, glue breaking and the like of the polyurethane structural adhesive during the use are solved soas to prolong the service life.

Description

technical field [0001] The invention relates to the adhesive field, in particular to a primer for polyurethane structural adhesives, a preparation method and application thereof. Background technique [0002] The movable windows widely used in the fields of airplanes and ships are generally used to meet the requirements of lighting, ventilation, maintenance, etc. By pushing the movable windows, the windows can be opened or closed to achieve the purpose of use. [0003] The slide rails of the existing movable windows are generally connected to the substrate by screws, glue bonding or screw+glue bonding. The speed of civilian helicopters is low, and the vibration is much milder than that of military aircraft. They are generally fixed by screws + sealant to meet the requirements of use. However, military helicopters are fast in flight, and they need to conduct various training and fire shells, so the glass is subjected to greater force, vibration, and environmental changes in ...

Claims

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Application Information

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IPC IPC(8): C09J183/08C09J11/04C09J5/02C09J175/04C08L69/00C08L55/02C08L51/04C08K3/36B64C1/14
CPCB64C1/1492C08G77/14C08G77/20C08G77/26C08K2201/011C08L55/02C08L69/00C08L2207/53C09J4/00C09J5/02C09J11/04C09J175/04C09J183/08C08L51/04C08K3/36
Inventor 冯海兵欧迎春闫世斌陈昊杨幼然李丽丽朱治国孙皓天张延芳
Owner BEIJING HANGBO NEW MATERIAL TECH
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