A kind of acrylate adhesive of enhanced water resistance and preparation method thereof
Technical field
The present invention relates to adhesive field of material technology, the acrylate adhesive and its system of specifically a kind of enhanced water resistance
Preparation Method.
Background technique
Acrylate adhesive is a kind of adhesive as the main component with acrylate.Due to the ester group of acrylate
Presence, with very strong hydrogen bond, gumminess is high, adaptable, can also rapid curing, therefore acrylate adhesive can be with
The bonding being widely used between the materials such as metal, plastics, glass, ceramics, in automobile, electromechanical engineering, craftwork, household electrical appliance
Equal fields suffer from more universal application.
However, traditional acrylate adhesive, such as a-cyanoacrylate adhesive, although adaptable, transparent
Height, adhesive force are strong, and rate of drying is also fast, but its poor water resistance, contacts, is easily peeled off with water for a long time, and mechanical strength
It is relatively low, therefore its use scope is caused to receive certain limitation.
Summary of the invention
The purpose of the present invention is to provide acrylate adhesives of a kind of enhanced water resistance and preparation method thereof, on solving
State the problem of proposing in background technique.
To achieve the above object, the invention provides the following technical scheme:
A kind of acrylate adhesive of enhanced water resistance, using ethyl methacrylate as matrix, including below according to weight
The component of part meter: 30-65 parts of ethyl methacrylate, 12-22 parts of lauryl methacrylate, 12-20 parts of vinyl acetate, metatitanic acid
2-6 parts of ester coupling agent, 5-12 parts of modified nanometer cellulose, 4-10 parts of sodium vinyl sulfonate;The modified nanometer cellulose is
The complex compound formed with octadecylamine by electrostatic adsorption and nano-cellulose.
As a further solution of the present invention, a kind of acrylate adhesive of enhanced water resistance, including below according to weight
The component of part meter: 40-55 parts of ethyl methacrylate, 15-20 parts of lauryl methacrylate, 14-18 parts of vinyl acetate, metatitanic acid
3-5 parts of ester coupling agent, 7-10 parts of modified nanometer cellulose, 5-8 parts of sodium vinyl sulfonate.
As the present invention further scheme, a kind of acrylate adhesive of enhanced water resistance, including below according to weight
Measure the component of part meter: 50 parts of ethyl methacrylate, 17 parts of lauryl methacrylate, 15 parts of vinyl acetate, titanate esters coupling
3 parts of agent, 9 parts of modified nanometer cellulose, 6 parts of sodium vinyl sulfonate.
As the present invention, further scheme, the titanate coupling agent are two oleic acid acyloxy metatitanic acid of isopropyl
One of ester, Di(dioctylpyrophosphato) ethylene titanate and Di(dioctylpyrophosphato) ethylene titanate
Or it is a variety of.
As further scheme of the invention, nano-cellulose used in the modified nanometer cellulose is with micro-
Crystalline cellulose is what raw material was prepared by ultrasonic wave and sulphuric acid hydrolysis.
A kind of preparation method of the acrylate adhesive of above-mentioned enhanced water resistance, comprising the following steps:
(1) first ethyl methacrylate, lauryl methacrylate and vinyl acetate component are thrown according to above-mentioned parts by weight
Into dispersion is stirred in stirred tank, the whipping temp of stirred tank is controlled at 60-90 DEG C;
(2) then titanate coupling agent, modified nanometer cellulose and sodium vinyl sulfonate component are put by above-mentioned parts by weight
Into being stirred in blender and ultrasonication.
(3) finally the mixed liquor that step (2) obtains is added in the stirred tank of step (1) and continues to stir 5-10h, can obtained
To the acrylate adhesive of the enhanced water resistance,
As further scheme of the invention, the speed of agitator of the stirred tank in the step (1) is 200-300r/
min。
Compared with prior art, the beneficial effects of the present invention are:
The present invention by being added the nano-cellulose modified by octadecylamine, and with sodium vinyl sulfonate, titanium
Under the complex role of the components such as acid esters coupling agent, acrylate adhesive obtained have high-peeling strength, high shear strength with
And the advantages that good impact and water resistance.
Specific embodiment
Technical solution of the present invention is described in more detail With reference to embodiment.
Embodiment 1
A kind of acrylate adhesive of enhanced water resistance, using ethyl methacrylate as matrix, including below according to weight
The component of part meter: 65 parts of ethyl methacrylate, 12 parts of lauryl methacrylate, 12 parts of vinyl acetate, titanate coupling agent 2
Part, 5 parts of modified nanometer cellulose, 4 parts of sodium vinyl sulfonate.
Wherein, the modified nanometer cellulose is to pass through electrostatic adsorption and nano-cellulose shape with octadecylamine
At complex compound;The titanate coupling agent is two oleic acid acyloxy titanate esters of isopropyl;The modified nanometer cellulose
Used nano-cellulose is to be prepared using microcrystalline cellulose as raw material by ultrasonic wave and sulphuric acid hydrolysis.
A kind of preparation method of the acrylate adhesive of above-mentioned enhanced water resistance, comprising the following steps:
(1) first ethyl methacrylate, lauryl methacrylate and vinyl acetate component are thrown according to above-mentioned parts by weight
Into dispersion is stirred in stirred tank, at 60 DEG C, the speed of agitator of stirred tank is 200r/min for the whipping temp control of stirred tank.
(2) then titanate coupling agent, modified nanometer cellulose and sodium vinyl sulfonate component are put by above-mentioned parts by weight
Into being stirred in blender and ultrasonication.
(3) finally the mixed liquor that step (2) obtains is added in the stirred tank of step (1) and continues to stir 5h, can be obtained
The acrylate adhesive of the enhanced water resistance.
Embodiment 2
A kind of acrylate adhesive of enhanced water resistance, using ethyl methacrylate as matrix, including below according to weight
The component of part meter: 30 parts of ethyl methacrylate, 22 parts of lauryl methacrylate, 20 parts of vinyl acetate, titanate coupling agent 6
Part, 12 parts of modified nanometer cellulose, 10 parts of sodium vinyl sulfonate.
Wherein, the modified nanometer cellulose is to pass through electrostatic adsorption and nano-cellulose shape with octadecylamine
At complex compound;The titanate coupling agent is Di(dioctylpyrophosphato) ethylene titanate;The modification is received
Nano-cellulose used in rice cellulose is to be prepared using microcrystalline cellulose as raw material by ultrasonic wave and sulphuric acid hydrolysis.
A kind of preparation method of the acrylate adhesive of above-mentioned enhanced water resistance, comprising the following steps:
(1) first ethyl methacrylate, lauryl methacrylate and vinyl acetate component are thrown according to above-mentioned parts by weight
Into dispersion is stirred in stirred tank, at 90 DEG C, the speed of agitator of stirred tank is 300r/min for the whipping temp control of stirred tank.
(2) then titanate coupling agent, modified nanometer cellulose and sodium vinyl sulfonate component are put by above-mentioned parts by weight
Into being stirred in blender and ultrasonication.
(3) finally the mixed liquor that step (2) obtains is added in the stirred tank of step (1) and continues to stir 10h, can be obtained
The acrylate adhesive of the enhanced water resistance.
Embodiment 3
A kind of acrylate adhesive of enhanced water resistance, using ethyl methacrylate as matrix, including below according to weight
The component of part meter: 55 parts of ethyl methacrylate, 15 parts of lauryl methacrylate, 14 parts of vinyl acetate, titanate coupling agent 3
Part, 7 parts of modified nanometer cellulose, 5 parts of sodium vinyl sulfonate.
Wherein, the modified nanometer cellulose is to pass through electrostatic adsorption and nano-cellulose shape with octadecylamine
At complex compound;The titanate coupling agent is Di(dioctylpyrophosphato) ethylene titanate;The modification is received
Nano-cellulose used in rice cellulose is to be prepared using microcrystalline cellulose as raw material by ultrasonic wave and sulphuric acid hydrolysis.
A kind of preparation method of the acrylate adhesive of above-mentioned enhanced water resistance, comprising the following steps:
(1) first ethyl methacrylate, lauryl methacrylate and vinyl acetate component are thrown according to above-mentioned parts by weight
Into dispersion is stirred in stirred tank, at 80 DEG C, the speed of agitator of stirred tank is 280r/min for the whipping temp control of stirred tank.
(2) then titanate coupling agent, modified nanometer cellulose and sodium vinyl sulfonate component are put by above-mentioned parts by weight
Into being stirred in blender and ultrasonication.
(3) finally the mixed liquor that step (2) obtains is added in the stirred tank of step (1) and continues to stir 80h, can be obtained
The acrylate adhesive of the enhanced water resistance.
Embodiment 4
A kind of acrylate adhesive of enhanced water resistance, using ethyl methacrylate as matrix, including below according to weight
The component of part meter: 40 parts of ethyl methacrylate, 20 parts of lauryl methacrylate, 18 parts of vinyl acetate, titanate coupling agent 5
Part, 10 parts of modified nanometer cellulose, 8 parts of sodium vinyl sulfonate.
Wherein, the modified nanometer cellulose is to pass through electrostatic adsorption and nano-cellulose shape with octadecylamine
At complex compound;The titanate coupling agent is two oleic acid acyloxy titanate esters of isopropyl, bis- (two octyloxy pyrophosphates
Base) one of ethylene titanate esters and Di(dioctylpyrophosphato) ethylene titanate or a variety of;The modified Nano
Nano-cellulose used in cellulose is to be prepared using microcrystalline cellulose as raw material by ultrasonic wave and sulphuric acid hydrolysis.
A kind of preparation method of the acrylate adhesive of above-mentioned enhanced water resistance, comprising the following steps:
(1) first ethyl methacrylate, lauryl methacrylate and vinyl acetate component are thrown according to above-mentioned parts by weight
Into dispersion is stirred in stirred tank, at 80 DEG C, the speed of agitator of stirred tank is 280r/min for the whipping temp control of stirred tank.
(2) then titanate coupling agent, modified nanometer cellulose and sodium vinyl sulfonate component are put by above-mentioned parts by weight
Into being stirred in blender and ultrasonication.
(3) finally the mixed liquor that step (2) obtains is added in the stirred tank of step (1) and continues to stir 80h, can be obtained
The acrylate adhesive of the enhanced water resistance.
Embodiment 5
A kind of acrylate adhesive of enhanced water resistance, using ethyl methacrylate as matrix, including below according to weight
The component of part meter: 50 parts of ethyl methacrylate, 17 parts of lauryl methacrylate, 15 parts of vinyl acetate, titanate coupling agent 3
Part, 9 parts of modified nanometer cellulose, 6 parts of sodium vinyl sulfonate.
Wherein, the modified nanometer cellulose is to pass through electrostatic adsorption and nano-cellulose shape with octadecylamine
At complex compound;The titanate coupling agent is two oleic acid acyloxy titanate esters of isopropyl, bis- (two octyloxy pyrophosphates
Base) one of ethylene titanate esters and Di(dioctylpyrophosphato) ethylene titanate or a variety of;The modified Nano
Nano-cellulose used in cellulose is to be prepared using microcrystalline cellulose as raw material by ultrasonic wave and sulphuric acid hydrolysis.
A kind of preparation method of the acrylate adhesive of above-mentioned enhanced water resistance, comprising the following steps:
(1) first ethyl methacrylate, lauryl methacrylate and vinyl acetate component are thrown according to above-mentioned parts by weight
Into dispersion is stirred in stirred tank, at 80 DEG C, the speed of agitator of stirred tank is 280r/min for the whipping temp control of stirred tank.
(2) then titanate coupling agent, modified nanometer cellulose and sodium vinyl sulfonate component are put by above-mentioned parts by weight
Into being stirred in blender and ultrasonication.
(3) finally the mixed liquor that step (2) obtains is added in the stirred tank of step (1) and continues to stir 80h, can be obtained
The acrylate adhesive of the enhanced water resistance.
Comparative example 1
Except same as Example 5 without containing modified nanometer cellulose component, other components and its content and preparation method.
Comparative example 2
Except same as Example 5 without sodium vinyl sulfonate component, remaining component and its content and preparation method.
Comparative example 3
Except modified nanometer cellulose to be changed into non-modified nano-cellulose, remaining component and its content and preparation method
It is same as Example 5.
By acrylate adhesive made from above-described embodiment 1-5 and comparative example 1-3 and existing product (alpha-cyanoacrylate
Ester adhesive) relevant performance test is carried out under identical condition.Wherein, peel strength (GB/T2791-1995), impact are strong
Degree, initial shear strength, in water impregnate 100h after shear strength and water absorption (be completely immersed in water place 50h after survey
The increase percentage of weight after its fixed water suction) test data be as follows:
It is compared it can be seen from the test result of upper table according to acrylate adhesive made from 1-5 of the embodiment of the present invention
In existing a-cyanoacrylate adhesive, possess higher peel strength, shear strength, impact resistance and water resistance.
It can be seen that the present invention from the test result of comparative example 1-2 and embodiment 5 and pass through addition modified nanometer cellulose,
And under the complex role of the components such as sodium vinyl sulfonate, can be made with high-peeling strength, high shear strength and excellent
The acrylate adhesive of good impact resistance and water resistance.
In addition, can be seen that the present invention by being added by modification from the test result of comparative example 3 and embodiment 5
Nano-cellulose, the water resistance and its intensity of acrylate adhesive can be greatly improved.
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie
In the case where without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power
Benefit requires rather than above description limits, it is intended that all by what is fallen within the meaning and scope of the equivalent elements of the claims
Variation is included within the present invention.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiments being understood that.