CN105176464A

CN105176464A - Metal-to-metal adhesive with stable size

Info

Publication number: CN105176464A
Application number: CN201510510547.0A
Authority: CN
Inventors: 孙爱琴
Original assignee: Hefei Tenver Precision Casting Co Ltd
Current assignee: Hefei Tenver Precision Casting Co Ltd
Priority date: 2015-08-19
Filing date: 2015-08-19
Publication date: 2015-12-23

Abstract

The invention discloses a metal-to-metal adhesive with a stable size. The metal-to-metal adhesive comprises the following raw materials: water-borne epoxy resin, deionized water, triethylene tetramine, phthalic anhydride, isopropyl trititanate, nanometer calcium carbonate, fatty alcohol polyoxyethylene ether, isophorone, dibutyltin dilaurate and polypropylene polyoxyethylene glycerol ether. The metal-to-metal adhesive with a stable size in the invention is simple to prepare and has a stable cured size, good bonding performance, water resistance and corrosion resistance; since the water-borne epoxy resin is used as a main raw material, the metal-to-metal adhesive has good hardness, elasticity and weatherability; since water is used as a solvent, the environment is protected, and cost is reduced; the modified nanometer calcium carbonate enables the adhesive to be uniformly dispersed and to maintain rheological properties and certain viscosity; the dibutyltin dilaurate allows the drying time of the adhesive to be shortened, the adhesive to be saved, work efficiency to be improved, and cost to be reduced; and due to addition of normal temperature and high temperature curing agents, the adhesive can be stored at 4 DEG C, has long shelf life, exerts curing effect in different environments and has a wide application scope.

Description

A kind of Metal adhesive of dimensional stabilizing

Technical field

The present invention relates to a kind of Metal adhesive of dimensional stabilizing, belong to Metal adhesive field.

Background technology

Sizing agent refers to sticking and effect such as interior poly-grade by interface, natural or the synthesis that two or more product or material can be made to link together, an organic or inorganic class material, be referred to as sizing agent, be tamanori again, traditionally referred to as " glue ".In brief, sizing agent is exactly by adhesive effect, can make by the material sticking thing and combine.Along with industrial expansion, the space required for Metal adhesive is more and more wider, but the weathering resistance of a lot of Metal adhesive is not strong, greatly influenced by ambient temperature on the market, and cohesiveness is not strong, and solidification size is unstable, and time of drying is long, causes the waste of sizing agent.

Epoxy resin adhesive bonding strength is high, hardness is large, good rigidly, can be acidproof, alkali, oil and organic solution, cure shrinkage is little, can as the sqtructural adhesive of the materials such as metal, cement, pottery, glass, building stones, timber, thermosetting resin and building Embedding Material, therefore be often called multi-purpose adhesive, along with epoxy resin adhesive is in the application popularization of the industrial sectors such as aircraft, automobile, building, electronic apparatus, wood working, there is higher pursuit for the quality of epoxy resin adhesive and effect.

Summary of the invention

In order to make up the defect of prior art, the object of this invention is to provide a kind of Metal adhesive of dimensional stabilizing.

A Metal adhesive for dimensional stabilizing, is made up of the raw material of following weight percent:

Aqueous epoxy resins 50% ~ 55%, deionized water 20% ~ 25%, triethylene tetramine 10% ~ 15%, Tetra hydro Phthalic anhydride 7% ~ 10%, sec.-propyl three titanic acid ester 2% ~ 4%, nano-calcium carbonate 1% ~ 3%, fatty alcohol-polyoxyethylene ether 3% ~ 5%, isophorone 1% ~ 2%, dibutyl tin laurate 2% ~ 5%, polyoxyethylene polyoxypropylene glyceryl ether 0.5% ~ 0.8%.

A preparation method for the Metal adhesive of dimensional stabilizing, comprises the following steps:

(1) mixed with deionized water by nano-calcium carbonate, preparation calcium carbonate-deionized water suspension, is heated to 90 ~ 100 DEG C, adds sec.-propyl three titanic acid ester, keeps temperature, stirs 20 ~ 30 minutes;

(2) add in reactor by aqueous epoxy resins, heating, is warming up to 80 ~ 85 DEG C, by 1 with 1.5 ~ 2 DEG C/min) add in reactor;

(3) to 2) in add fatty alcohol-polyoxyethylene ether, isophorone, dibutyl tin laurate and polyoxyethylene polyoxypropylene glyceryl ether, temperature is 65 ~ 70 DEG C, stirs, and stirs 15 ~ 20 minutes;

(4) by 3) temperature be down to 50 ~ 60 DEG C, add triethylene tetramine and Tetra hydro Phthalic anhydride, stir 5 ~ 8 minutes;

(5) weigh, packaging, 4 DEG C of cryopreservation.

Advantage of the present invention is: the Metal adhesive of a kind of dimensional stabilizing provided by the invention, and preparation is simple, solidification dimensional stabilizing, and time of drying is short, saves the consumption of sizing agent, and cementability is strong, not easily aging, water-tight corrosion-proof, and weathering resistance is strong, easy to use; Take aqueous epoxy resins as main raw material, consistency and elasticity is strong, and weathering resistance is strong; Take water as solvent, protection of the environment, reduces costs; Modified nano calcium carbonate makes sizing agent be uniformly dispersed, and keeps rheological and certain viscosity, improves sizing agent to the cementability of difficult substrates; Adding of dibutyl tin laurate, shorten the time of drying of sizing agent, save sizing agent, increase work efficiency, cost-saving; Add normal temperature and high-temperature curing agent, at 4 DEG C of cryopreservation, extend the shelf life, solidification can be produced at different environment, applied range.

Embodiment

With specific embodiment, the present invention is described below.

Embodiment 1

Aqueous epoxy resins 51%, deionized water 21%, triethylene tetramine 11%, Tetra hydro Phthalic anhydride 7%, sec.-propyl three titanic acid ester 2%, nano-calcium carbonate 1%, fatty alcohol-polyoxyethylene ether 3%, isophorone 1%, dibutyl tin laurate 2.5%, polyoxyethylene polyoxypropylene glyceryl ether 0.5%.

(1) mixed with deionized water by nano-calcium carbonate, preparation calcium carbonate-deionized water suspension, is heated to 90 DEG C, adds sec.-propyl three titanic acid ester, keeps temperature, stirs 20 minutes;

(2) add in reactor by aqueous epoxy resins, heating, is warming up to 80 DEG C, by 1 with 1.5 DEG C/min) add in reactor;

(3) to 2) in add fatty alcohol-polyoxyethylene ether, isophorone, dibutyl tin laurate and polyoxyethylene polyoxypropylene glyceryl ether, temperature is 65 DEG C, stirs, and stirs 15 minutes;

(4) by 3) temperature be down to 50 DEG C, add triethylene tetramine and Tetra hydro Phthalic anhydride, stir 5 minutes;

(5) weigh, packaging, 4 DEG C of cryopreservation.

Embodiment 2

Aqueous epoxy resins 50%, deionized water 20%, triethylene tetramine 10%, Tetra hydro Phthalic anhydride 8%, sec.-propyl three titanic acid ester 3%, nano-calcium carbonate 1%, fatty alcohol-polyoxyethylene ether 4%, isophorone 1%, dibutyl tin laurate 2.5%, polyoxyethylene polyoxypropylene glyceryl ether 0.5%.

(1) mixed with deionized water by nano-calcium carbonate, preparation calcium carbonate-deionized water suspension, is heated to 95 DEG C, adds sec.-propyl three titanic acid ester, keeps temperature, stirs 25 minutes;

(2) add in reactor by aqueous epoxy resins, heating, is warming up to 83 DEG C, by 1 with 1.8 DEG C/min) add in reactor;

(3) to 2) in add fatty alcohol-polyoxyethylene ether, isophorone, dibutyl tin laurate and polyoxyethylene polyoxypropylene glyceryl ether, temperature is 68 DEG C, stirs, and stirs 18 minutes;

(4) by 3) temperature be down to 55 DEG C, add triethylene tetramine and Tetra hydro Phthalic anhydride, stir 7 minutes;

(5) weigh, packaging, 4 DEG C of cryopreservation.

Embodiment 3

Aqueous epoxy resins 50%, deionized water 21%, triethylene tetramine 10%, Tetra hydro Phthalic anhydride 7%, sec.-propyl three titanic acid ester 2%, nano-calcium carbonate 1%, fatty alcohol-polyoxyethylene ether 4%, isophorone 2%, dibutyl tin laurate 2.5%, polyoxyethylene polyoxypropylene glyceryl ether 0.5%.

(1) mixed with deionized water by nano-calcium carbonate, preparation calcium carbonate-deionized water suspension, is heated to 100 DEG C, adds sec.-propyl three titanic acid ester, keeps temperature, stirs 30 minutes;

(2) add in reactor by aqueous epoxy resins, heating, is warming up to 85 DEG C, by 1 with 2 DEG C/min) add in reactor;

(3) to 2) in add fatty alcohol-polyoxyethylene ether, isophorone, dibutyl tin laurate and polyoxyethylene polyoxypropylene glyceryl ether, temperature is 70 DEG C, stirs, and stirs 20 minutes;

(4) by 3) temperature be down to 60 DEG C, add triethylene tetramine and Tetra hydro Phthalic anhydride, stir 8 minutes;

(5) weigh, packaging, 4 DEG C of cryopreservation.

Performance test: the Low Density Polyethylene bottle getting 6 100ml, 3 Metal adhesive samples adding 30g dimensional stabilizing of the present invention, 3 traditional epoxies Metal adhesive samples adding homogenous quantities, occur retrogradation as 85 DEG C of environment down to glue or solidify required time and dimensional change contrast, table 1 is that the Metal adhesive of the dimensional stabilizing of embodiment and traditional epoxies Metal adhesive carry out setting time contrast.

Table 1: the Metal adhesive of embodiment dimensional stabilizing and traditional epoxies Metal adhesive carries out setting time and dimensional change contrasts

As can be seen from the content of table 1, the Metal adhesive setting time on the metallic substrate of the dimensional stabilizing that the embodiment of the present invention provides is short, and fast setting, changes little, and also fine at suprabasil solidification effect.

Claims

1. a Metal adhesive for dimensional stabilizing, is characterized in that, is made up of the raw material of following weight percent:

2. the preparation method of the Metal adhesive of a kind of dimensional stabilizing as claimed in claim 1, is characterized in that, comprise the following steps:

(5) weigh, packaging, 4 DEG C of cryopreservation.