CN105733185B - The purposes of composition, molded part and preparation method thereof and modifying agent - Google Patents
The purposes of composition, molded part and preparation method thereof and modifying agent Download PDFInfo
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Abstract
The invention discloses the purposes of a kind of composition, molded part and preparation method thereof and modifying agent, the composition contains: the matrix resin of 15~50 parts by weight；The modifying agent of 10~30 parts by weight；The dicyandiamide of 1~10 parts by weight；The imidazoles of 0.1~5 parts by weight；The curing agent of 1~10 parts by weight；And 20~45 parts by weight solvent, wherein the modifying agent be selected from least one of polyester and polyethers.Modifying agent and matrix resin is enabled to form reticular structure as modifying agent by using polyester and polyethers as a result, so as to improve the flexibility of matrix resin, thus, it is possible to the mechanical performance of product obtained by significantly improving, such as anti-compression properties, traumatic resistance energy and shock resistance.
Description
Technical field
The invention belongs to materials processing technology fields, specifically, the present invention relates to a kind of composition, molded part and its systems
The purposes of Preparation Method and modifying agent.
Background technique
Currently, glass fibre-aluminium alloy layer pressing plate, is to replace laying with prepreg thin slice by aluminum alloy flake, is hot pressed into
The structural material of type is usually used in preparing molded part, for example, the wing flap of aircraft, aileron, rear bulkhead, bulkhead, joist and vertical steady
Determine the wing, bodyshell, skylight, car door, bumper, front-end bracket, chair framework and the engine of automobile also can be applied to build
Build the fields such as bearing structure, daily stationery, toy, tables and chairs, electronic product casing, wind blade, storage tank and the pipe-type of object.
However, glass fibre-aluminium alloy layer pressing plate preparation molded part haves the defects that bad mechanical property at present.It is basic former
Because of the prepreg for being to presoak for glass fibre, i.e. epoxy resin property is more crisp, and therefore, the property of prepreg is to be modified.
Summary of the invention
The present invention is directed to solve at least some of the technical problems in related technologies.
The present invention is the following discovery based on inventor and completes:
During thermoplastic resin and other materials are mixed with molding part, since the thermoplastic resin of liquid has
There is higher viscosity, system viscosity is caused to increase, and then form more hole, so as to cause the mechanicalness of obtained product
It can reduce, such as anti-compression properties and traumatic resistance can be poor.In addition, when adding thermoplastic resin particle, since there are offices
The particle in portion, will cause that tackness is lower, also result in products obtained therefrom anti-compression properties and traumatic resistance can etc. machinery
Performance is poor.
For this purpose, an object of the present invention is to provide it is a kind of can be used in improve product mechanical performance composition, at
The purposes of type part and preparation method thereof and modifying agent.
In one aspect of the invention, the invention proposes a kind of compositions that can be used for preparing molded part.According to this
The embodiment of invention, the composition contain: the matrix resin of 15~50 parts by weight；The modifying agent of 10~30 parts by weight；1~10 weight
Measure the dicyandiamide of part；The imidazoles of 0.1~5 parts by weight；The curing agent of 1~10 parts by weight；And 20~45 parts by weight solvent,
In, the modifying agent is selected from least one of polyester and polyethers.
It is surprisingly found by the inventors that enabling to modifying agent and matrix tree as modifying agent by using polyester and polyethers
Rouge such as thermosetting resin such as epoxy resin forms reticular structure and as a result, may be used so as to improve the flexibility of matrix resin
To significantly improve the mechanical performance of acquired product, the shock resistance of molded part obtained by especially improving.In addition, modifying agent
It can combine together completely with matrix resin, so that hole is not present in obtained molded part, thus, it is possible to significantly improve institute
Obtain the mechanical performance of product, such as anti-compression properties, traumatic resistance energy and shock resistance.
In the second aspect of the invention, the invention proposes a kind of molded parts containing above-mentioned composition.According to this hair
Bright embodiment, the molded part are obtained and carrying out forming processes to composition recited above.As a result, this at
Type part has good anti-compression properties, traumatic resistance energy and shock resistance.It should be noted that above-mentioned described combination
The feature and advantage of object are equally applicable for the molded part, and details are not described herein again.
In the third aspect of the invention, the present invention proposes the method for preparing above-mentioned molded part.Implementation according to the present invention
Example, this method comprises: (1) provides composition recited above；(2) make the composition solidification to obtain the molded part.
Thus, it is possible to which the molded part with good anti-compression properties, traumatic resistance energy and shock resistance is prepared.
In the fourth aspect of the invention, the invention proposes a kind of modifying agent in improving thermosetting resin flexibility
Purposes, the modifying agent are at least one selected from polyester and polyethers.As a result, by using polyester and polyethers as modifying agent,
It enables to modifying agent and thermosetting resin to form reticular structure as a result, may be used so as to improve the flexibility of thermosetting resin
To significantly improve the mechanical performance of acquired product, such as anti-compression properties, traumatic resistance energy and shock resistance.
Additional aspect and advantage of the invention will be set forth in part in the description, and will partially become from the following description
Obviously, or practice through the invention is recognized.
Specific embodiment
The embodiment of the present invention is described below in detail.The embodiments described below is exemplary, it is intended to for explaining this
Invention, and be not considered as limiting the invention.
In one aspect of the invention, the invention proposes a kind of compositions.According to an embodiment of the invention, the composition
Contain: the matrix resin of 15~50 parts by weight, the modifying agent of 10~30 parts by weight, the dicyandiamide of 1~10 parts by weight, 0.1~5 weight
The imidazoles, the curing agent of 1~10 parts by weight and the solvent of 20~45 parts by weight of part are measured, according to a particular embodiment of the invention,
Modifying agent can be for selected from least one of polyester and polyethers.Inventors have found that making by using thermosetting polyester and polyethers
For modifying agent, modifying agent and matrix resin such as thermosetting resin such as epoxy resin is enabled to form reticular structure, thus
The flexibility of matrix resin can be improved, thus, it is possible to which the mechanical performance of product obtained by significantly improving, especially improves gained
To the shock resistance of molded part.In addition, modifying agent can combine together completely with matrix resin so that it is obtained at
Hole, while arrange in pairs or groups dicyandiamide and imidazoles are not present in type part, thus, it is possible to the mechanical performance of product obtained by significantly improving,
Such as anti-compression properties, traumatic resistance energy and shock resistance, and inventor is had been surprisingly found that by many experiments, the present invention matches
Side can be while guaranteeing binding force of the prepreg to resin, so that resin flexibility is improved well.
According to an embodiment of the invention, the concrete type and average molecular weight of polyester and polyethers be not by special in modifying agent
Limitation, according to a particular embodiment of the invention, the average molecular weight of polyester can be 15000~40000, the mean molecule of polyethers
Amount can be 3000~10000.Inventors have found that the polyester or polyethers of the molecular weight can be effectively improved the flexibility of system,
And the viscosity of system will not be too high, is conducive to process.According to an embodiment of the invention, the polyester that can be used includes but is not limited to
Polyethylene terephthalate, polycarbonate and poly- (terephthalic acid (TPA)/adipic acid) second diester；The polyethers that can be used include but
It is not limited to dihydroxy polyoxygenated propyl ether, trihydroxy polyoxygenated propyl ether, dihydroxy polytetrahydrofuran oxidation propyl ether.Thus, it is possible into one
Walk the flexibility of improvement system.
According to an embodiment of the invention, the concrete type of curing agent is not particularly restricted, specific reality according to the present invention
Example is applied, curing agent can be for selected from least one of hexamethylene diisocyanate and isophorone diisocyanate.Invention
People's discovery, such curing agent can significantly improve the curing efficiency of composition.
According to an embodiment of the invention, the concrete type of solvent is not particularly restricted, specific implementation according to the present invention
Example, solvent can be for selected from least one of methyl iso-butyl ketone (MIBK), butyl acetate and n-butanols, such as can be containing methyl
The mixed solution of isobutyl ketone, butyl acetate and n-butanol.According to a particular embodiment of the invention, in solvent each component ratio
It is not particularly restricted, according to a particular embodiment of the invention, solvent can be (2~4): (3~6): (0.5 containing mass ratio
~1.5) methyl iso-butyl ketone (MIBK), butyl acetate and n-butanol.Inventors have found that the mixed solvent of the formula, can significantly mention
The solubility of high matrix resin, and rate of volatilization is moderate, to significantly improve the flexibility of resin.
According to an embodiment of the invention, matrix resin can be epoxy resin.As a result, by using thermosetting polyester and poly-
Ether enables to modifying agent and epoxy resin to form reticular structure, as modifying agent so as to improve the flexible of epoxy resin
Property, thus, it is possible to the mechanical performance of product obtained by significantly improving, the shock resistance of molded part obtained by especially improving.
According to an embodiment of the invention, the composition further comprises defoaming agent.According to a particular embodiment of the invention, disappear
The concrete type of infusion is not particularly restricted, according to a particular embodiment of the invention, defoaming agent can for selected from polysiloxanes,
At least one of poly- methyl alkyl siloxane, polyether system defoaming agent.The gas in system can be taken away or be sloughed to defoaming agent as a result,
Bubble, thus the integrality of guarantee system, and then improve the intensity of system.
In the second aspect of the invention, the invention proposes a kind of molded parts.According to an embodiment of the invention, the molding
Part is obtained and carrying out forming processes to combinations of the above object.As a result, the molded part is with good incompressible
Performance, traumatic resistance energy and shock resistance.It should be noted that the feature and advantage of above-mentioned described composition are equally suitable
In the molded part, details are not described herein again.
According to an embodiment of the invention, the molded part further comprises fiberglass woven cloth.As a result, the molded part has
There are good anti-compression properties, traumatic resistance energy and shock resistance.
According to an embodiment of the invention, fiberglass woven cloth can be by silane coupler modified processing, according to this
The concrete type of the specific embodiment of invention, silane coupling agent is not particularly restricted, according to a particular embodiment of the invention, silicon
Alkane coupling agent can be for selected from vinyltriethoxysilane, vinyl trichlorosilane, vinyl three (beta-methoxy ethyoxyl) silicon
Alkane, γ-glycidylpropyl-trimethoxy silane, γ-methacryloxypropyl-trimethoxy silane, N- (β-ammonia second
Base)-γ-aminopropyl-trimethoxy silane, N- (β-aminoethyl)-γ-aminopropyl-Methyl-trimethoxy silane, γ-chlorine third
At least one of base-trimethoxy silane, γ-mercapto propyl-trimethoxysilane and γ-aminopropyl-trimethoxy silane.Hair
Bright people discovery, having containing hydrolysising group and two kinds of different chemical property groups of non-hydrolytic group simultaneously in silane coupled agent molecule
Organic silicon compound, hydrolysising group can be chemically combined with fiber, and non-hydrolytic group can be chemically combined with organic matter, by
This allows the silane coupling agent to form good instrumentality between fiber and prepreg, to further increase molded part
Anti-compression properties, traumatic resistance energy and shock resistance.
According to an embodiment of the invention, molded part can be automobile component, aircraft component or articles for daily use component, such as at
Type part can be bodyshell, skylight, car door, bumper, front-end bracket, chair framework and engine, the wing flap of aircraft, pair
The wing, rear bulkhead, bulkhead, joist and vertical stabilizer, also can be applied to the bearing structure of building, daily stationery, toy,
Tables and chairs, electronic product casing, wind blade, storage tank and pipe-type etc..
In the third aspect of the invention, the invention proposes a kind of methods for preparing molded part.Reality according to the present invention
Example is applied, this method comprises: (1) provides combinations of the above object；(2) above-mentioned composition is subjected to curing process, it is hereby achieved that
Molded part.
According to embodiments of the present invention, composition is provided using the following steps: (1-1) is by methyl iso-butyl ketone (MIBK), butyl acetate
It is mixed with n-butanol and carries out the first high speed dispersion processing, to obtain solvent；(1-2) is by matrix resin and modifying agent and solvent
It mixes and carries out the second high speed dispersion processing；(1-3) is by obtained mixture in remaining component of composition and step (1-2)
It mixes and carries out third high speed dispersion processing, it is hereby achieved that composition.
According to an embodiment of the invention, the first, second, and third high speed dispersion be each independently in high speed disperser with
The revolving speed of 500~2000rpm is handled 5 minutes to 1 hour.Specifically, the processing of the first high speed dispersion can be in 500~1000rpm
Revolving speed under handle 5~20min, the processing of the second high speed dispersion can handle 20 under the revolving speed of 1000~2000rpm~
40min, the processing of third high speed dispersion can handle 5~20min under the revolving speed of 1000~2000rpm.Thus, it is possible to significantly mention
The dispersion efficiency of high each component, so that uniform composition be prepared.
According to an embodiment of the invention, can be (2 according to mass ratio by methyl iso-butyl ketone (MIBK), butyl acetate and n-butanol
~4): (3~6): (0.5~1.5) carries out being mixed with solvent.Inventors have found that the mixed solvent of the formula, can significantly mention
The solubility of high matrix resin, and rate of volatilization is moderate, to significantly improve the flexibility of resin.
According to an embodiment of the invention, matrix resin can be epoxy resin.As a result, by using thermosetting polyester and poly-
Ether enables to modifying agent and epoxy resin to form reticular structure, as modifying agent so as to improve the flexible of epoxy resin
Property, thus, it is possible to the mechanical performance of product obtained by significantly improving, the shock resistance of molded part obtained by especially improving.
According to an embodiment of the invention, the concrete type of curing agent is not particularly restricted, specific reality according to the present invention
Example is applied, curing agent can be for selected from least one of hexamethylene diisocyanate and isophorone diisocyanate.Invention
People's discovery, such curing agent can significantly improve the curing efficiency of composition.
According to an embodiment of the invention, curing process can carry out under 150~180 degrees Celsius.Inventors have found that this
The shaping efficiency of molded part can be significantly improved under part.
According to an embodiment of the invention, composition is packaged in glass fabric in advance before solidifying composition
In.According to a particular embodiment of the invention, glass fabric be by silane coupler modified processing, it is according to the present invention
Specific example, silane coupling agent can be for selected from vinyltriethoxysilane, the vinyl trichlorosilane, (β-first of vinyl three
Oxygen ethyoxyl) silane, γ-glycidylpropyl-trimethoxy silane, γ-methacryloxypropyl-trimethoxy silicon
Alkane, N- (β-aminoethyl)-γ-aminopropyl-trimethoxy silane, N- (β-aminoethyl)-γ-aminopropyl-Methyl-trimethoxy silicon
In alkane, γ-chloropropyl-trimethoxy silane, γ-mercapto propyl-trimethoxysilane and γ-aminopropyl-trimethoxy silane
It is at least one.Inventors have found that Bu Tong chemical containing hydrolysising group and two kinds of non-hydrolytic group simultaneously in silane coupled agent molecule
The organo-silicon compound of property group, hydrolysising group can be chemically combined with fiber, non-hydrolytic group can with organic matter into
Row chemical bonding, so that the silane coupling agent can form good instrumentality between fiber and prepreg, thus into
One step improves anti-compression properties, traumatic resistance energy and the shock resistance of gained molded part.
Specifically, composition is packaged in glass fabric can be carried out using the following steps: first by vinyl three
Ethyoxyl silicon and dehydrated alcohol are mixed, and so as to obtain coupling agent dispersed liquid, are then dispersed obtained coupling agent
Liquid is sprayed on glass fabric, after being impregnated with completely, is placed at room temperature for, dry to ethyl alcohol volatilization, finally is packaged in obtain by composition
The glass fiber woven cloth containing coupling agent dispersed liquid in.
According to an embodiment of the invention, the mixed proportion of vinyl triethoxyl silicon and dehydrated alcohol is not limited especially
System, according to a particular embodiment of the invention, can by vinyl triethoxyl silicon and dehydrated alcohol according to mass ratio be 1:30~
150 are mixed.Inventors have found that the dispersion liquid cost economy of the proportion and can guarantee that coupling agent sprinkling is uniform.
It is to be appreciated that as needed, the fiberglass woven cloth for being packaged with composition can be placed on specific shape
Mold in carry out forming processes again, so as to obtain molded part of various shapes.
Thus, it is possible to which the molded part with good anti-compression properties, traumatic resistance energy and shock resistance is prepared.
It should be noted that the feature and advantage of above-mentioned described composition and molded part are equally applicable for preparing the method for molded part,
Details are not described herein again.
In the fourth aspect of the invention, the invention proposes a kind of modifying agent in improving thermosetting resin flexibility
Purposes, according to a particular embodiment of the invention, modifying agent can be at least one selected from polyester and polyethers.As a result, by adopting
It uses polyester and polyethers as modifying agent, enables to modifying agent and thermosetting resin to form reticular structure, so as to improve heat
The flexibility of thermosetting resin, thus, it is possible to the mechanical performance of product obtained by significantly improving, such as anti-compression properties, resistant to damage
Performance and shock resistance.
According to an embodiment of the invention, thermosetting resin can be epoxy resin.Thus, it is possible to obtained by further increasing
The mechanical performance of product, such as anti-compression properties, traumatic resistance energy and shock resistance.
Below with reference to specific embodiment, present invention is described, it should be noted that these embodiments are only to describe
Property, without limiting the invention in any way.
Embodiment 1
Composite formula: the methyl iso-butyl ketone (MIBK) of 9.98g, the butyl acetate of 19.95g, the n-butanol of 9.97g, 15g ring
The blocked isocyanate solidification of oxygen resin, the dicyandiamide of dihydroxy polyoxygenated propyl ether N-220,5g of 30g, the imidazoles of 0.1g, 10g
Agent；
Preparation method: methyl iso-butyl ketone (MIBK), butyl acetate and n-butanol are turned in high speed disperser in 800r/min
10min is carried out under the conditions of speed, obtains solvent, then will be mixed in solvent that epoxy resin, modifying agent are added to, and
30min is carried out under the speed conditions of 1500r/min using high speed disperser, obtains mixed solution, by dicyandiamide, imidazoles and envelope
It closes isocyanate curing agent to be added in mixed solution, and is carried out under the speed conditions of 1500r/min using high speed disperser
15min obtains composition, and vinyl triethoxyl silicon and dehydrated alcohol are mixed, and using high speed disperser in 500r/
15min is carried out under the speed conditions of min, obtains coupling agent dispersed liquid, and coupling agent dispersed liquid is sprayed at by drying using spray gun
On glass fabric, 4hr is placed in room temperature ventilation, dry to ethyl alcohol volatilization, is then contained what obtained composition was poured in
In the glass fabric of coupling agent dispersed liquid, finally by the glass fabric for being perfused with composition carried out under 165 degrees Celsius at
Type is handled 1 hour, and molded part can be obtained.
Embodiment 2
Composite formula: the methyl iso-butyl ketone (MIBK) of 10.75g, the butyl acetate of 21.5g, the n-butanol of 10.75g, 30g
Epoxy resin, the polyester Bayer Desmophen 1200 of 20g, the dicyandiamide of 1g, the imidazoles of 3g, the blocked isocyanate of 3g are solid
Agent；
Preparation method: with embodiment 1.
Embodiment 3
Composite formula: the dimethylbenzene of 6g, the butyl acetate of 12g, the n-butanol of 6g, the epoxy resin of 50g, 10g three
The dicyandiamide of hydroxyl polyoxygenated propyl ether N330,1g, the imidazoles of 5g, 1g blocked isocyanate curing agent；
Preparation method: with embodiment 1.
Comparative example 1
Composite formula: the methyl iso-butyl ketone (MIBK) of 6g, the butyl acetate of 12g, the n-butanol of 6g, 50g epoxy resin,
The dicyandiamide of Mitsubishi BR-116,1g of 10g, the imidazoles of 5g, 1g blocked isocyanate curing agent；
Preparation method: with embodiment 1.
Comparative example 2
Composite formula: the methyl iso-butyl ketone (MIBK) of 6g, the butyl acetate of 12g, the n-butanol of 6g, the epoxy resin of 50g, 5g
The dicyandiamide of trihydroxy polyoxygenated propyl ether N330,1g, the imidazoles of 5g, 1g blocked isocyanate curing agent；
Preparation method: with embodiment 1.
Comparative example 3
Composite formula: the methyl iso-butyl ketone (MIBK) of 6g, the butyl acetate of 12g, the n-butanol of 6g, 50g epoxy resin,
The Bayer Desmophen 1200 of 40g, the dicyandiamide of 1g, the imidazoles of 5g, 1g blocked isocyanate curing agent；
Preparation method: with embodiment 1.
Evaluation:
1, molded part mechanical performance obtained by embodiment 1-3 and comparative example 1-3 is evaluated respectively.
2, evaluation index and test method:
The test of tensile strength: GB/T 1447-2005
The test of shock resistance: GB/T 1451-2005
Test result is as shown in table 1:
The comparison of 1 molded part mechanical performance of table
Conclusion: from the data in table 1, it can be seen that the tensile strength and shock resistance of molded part obtained by Examples 1 to 3 are obvious high
In 1 gained molded part of comparative example, show the machinery that products obtained therefrom can be significantly improved using thermosetting modification agent polyester or polyethers
Performance, although and comparative example 2 and 3 has used thermosetting resin, gained molded part mechanical performance significantly lower than embodiment 1~
3 gained molded parts show the excessive very few mechanical performance that can significantly reduce molded part of modifying agent, in summary, by using
The thermosetting resin modifying agent of 10~30 parts by weight can significantly improve the mechanical performance of gained molded part.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is included at least one embodiment or example of the invention.In the present specification, schematic expression of the above terms are not
It must be directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be in office
It can be combined in any suitable manner in one or more embodiment or examples.In addition, without conflicting with each other, the skill of this field
Art personnel can tie the feature of different embodiments or examples described in this specification and different embodiments or examples
It closes and combines.
Although the embodiments of the present invention has been shown and described above, it is to be understood that above-described embodiment is example
Property, it is not considered as limiting the invention, those skilled in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, modifies, replacement and variant.
Claims (18)
1. a kind of composition, which is characterized in that contain:
The matrix resin of 15~50 parts by weight；
The modifying agent of 10~30 parts by weight；
The dicyandiamide of 1~10 parts by weight；
The imidazoles of 0.1~5 parts by weight；
The curing agent of 1~10 parts by weight；And
The solvent of 20~45 parts by weight,
Wherein,
Described matrix resin is epoxy resin,
The modifying agent is selected from least one of polyester and polyethers, the average molecular weight of the polyester is 15000~
40000, the polyethers average molecular weight is 3000~10000,
The curing agent be selected from least one of hexamethylene diisocyanate and isophorone diisocyanate,
The solvent is selected from least one of methyl iso-butyl ketone (MIBK), butyl acetate and n-butanol.
2. composition according to claim 1, which is characterized in that it is (2~4): (3~6) that the solvent, which contains mass ratio:
Methyl iso-butyl ketone (MIBK), butyl acetate and the n-butanol of (0.5~1.5).
3. composition according to claim 1, which is characterized in that further comprise defoaming agent.
4. composition according to claim 3, which is characterized in that the defoaming agent is selected from polysiloxanes, poly- methyl alkane
At least one of radical siloxane and polyether system defoaming agent.
5. a kind of molded part is obtained and carrying out forming processes to composition according to any one of claims 1 to 4
's.
6. molded part according to claim 5, which is characterized in that the molded part further comprises that glass fibre is knitted
Cloth.
7. molded part according to claim 6, which is characterized in that the fiberglass woven cloth is changed by silane coupling agent
Property processing.
8. molded part according to claim 5, which is characterized in that the molded part is automobile component, aircraft component or day
Regular supplies component.
9. a method of prepare molded part characterized by comprising
(1) the described in any item compositions of Claims 1 to 4 are provided；
(2) make the composition solidification to obtain the molded part.
10. according to the method described in claim 9, it is characterized in that, step (1) further comprises:
Methyl iso-butyl ketone (MIBK), butyl acetate and n-butanol are mixed and are carried out the first high speed dispersion processing by (1-1), molten to obtain
Agent；
Matrix resin and modifying agent are mixed with the solvent and carry out the second high speed dispersion processing by (1-2)；
Remaining component of the composition is mixed with obtained mixture in step (1-2) and carries out third high speed by (1-3)
Decentralized processing, to obtain the composition.
11. according to the method described in claim 10, it is characterized in that, first, second, and third high speed dispersion difference is only
It stands to be handled 5 minutes to 1 hour in high speed disperser with the revolving speed of 500~2000rpm.
12. according to the method for claim 11, which is characterized in that first high speed dispersion processing be 500~
5~20min is handled under the revolving speed of 1000rpm, the second high speed dispersion processing is handled under the revolving speed of 1000~2000rpm
20~40min, the third high speed dispersion processing are 5~20min of processing under the revolving speed of 1000~2000rpm.
13. according to the method described in claim 9, it is characterized in that, by the composition solidification before, in advance by described group
Object is closed to be packaged in glass fabric.
14. according to the method for claim 13, which is characterized in that the glass fabric is changed by silane coupling agent
Property processing.
15. according to the method for claim 14, which is characterized in that the silane coupling agent is selected from vinyl triethoxyl
Silane, vinyl trichlorosilane, vinyl three (beta-methoxy ethyoxyl) silane, γ-glycidylpropyl-trimethoxy silane,
γ-methacryloxypropyl-trimethoxy silane, N- (β-aminoethyl)-γ-aminopropyl-trimethoxy silane, N- (β-
Aminoethyl)-γ-aminopropyl-Methyl-trimethoxy silane, γ-chloropropyl-trimethoxy silane, γ-mercapto Propyl-trimethoxy
At least one of silane and γ-aminopropyl-trimethoxy silane.
16. described to be cured as heat cure processing according to the method described in claim 9, it is characterized in that, in step (2).
17. according to the method for claim 16, which is characterized in that heat cure processing be 150~180 at a temperature of
It carries out.
18. modifying agent is improving the purposes in thermosetting resin flexibility, the modifying agent be selected from polyester and polyethers at least
One kind, the average molecular weight of the polyester are 15000~40000, and the polyethers average molecular weight is 3000~10000, described
Thermosetting resin is epoxy resin,
The modifying agent is during improving the thermosetting resin flexibility, using curing agent and solvent,
The curing agent be selected from least one of hexamethylene diisocyanate and isophorone diisocyanate,
The solvent is selected from least one of methyl iso-butyl ketone (MIBK), butyl acetate and n-butanol.
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| CN104017460A (en) * | 2014-05-20 | 2014-09-03 | 淮北金宇机电设备制造有限公司 | Epoxy polyester coating steel-plastic water pipe and manufacturing method thereof |
| CN104119768A (en) * | 2014-06-27 | 2014-10-29 | 南京屏湖粉末材料有限公司 | Wear-resistant powder paint |
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| CN104119768A (en) * | 2014-06-27 | 2014-10-29 | 南京屏湖粉末材料有限公司 | Wear-resistant powder paint |
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