CN106433030B - Epoxy resin is for wood and preparation method thereof - Google Patents
Epoxy resin is for wood and preparation method thereof Download PDFInfo
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- CN106433030B CN106433030B CN201610804886.4A CN201610804886A CN106433030B CN 106433030 B CN106433030 B CN 106433030B CN 201610804886 A CN201610804886 A CN 201610804886A CN 106433030 B CN106433030 B CN 106433030B
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- catalyst
- epoxy resin
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- imidazole
- curing component
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L63/00—Compositions of epoxy resins; Compositions of derivatives of epoxy resins
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G59/00—Polycondensates containing more than one epoxy group per molecule; Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups
- C08G59/18—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing
- C08G59/40—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing characterised by the curing agents used
- C08G59/42—Polycarboxylic acids; Anhydrides, halides or low molecular weight esters thereof
- C08G59/4207—Polycarboxylic acids; Anhydrides, halides or low molecular weight esters thereof aliphatic
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G59/00—Polycondensates containing more than one epoxy group per molecule; Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups
- C08G59/18—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing
- C08G59/68—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing characterised by the catalysts used
- C08G59/686—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing characterised by the catalysts used containing nitrogen
Abstract
The present invention provides a kind of epoxy resin generation wood, are obtained by the reaction by resin Composition and curing component；The resin Composition is obtained by the reaction under the effect of the catalyst by epoxy resin and toughener；The toughener is selected from the one or more of nitrile rubber, a polyacids, dimeric dibasic acid, trimer acid and polyethylene；The catalyst is made of dimethylaminomethylphenol and imidazole and its derivants；The curing component includes the fatty acid anhydride, catalyst and hollow glass micropearl of C3~C20；The catalyst is made of dimethylaminomethylphenol and imidazole and its derivants.The present invention makes the epoxy resin generation wooden good toughness that the present invention is prepared by the collective effect of above-mentioned nitrile rubber, poly acid, epoxy resin, the fatty acid anhydride of C3~C20, catalyst and hollow glass micropearl, and stomata is few, not easy to crack and deformation.
Description
Technical field
The present invention relates to synthesizing substitute wood technical fields, more particularly, to a kind of epoxy resin for wood and preparation method thereof.
Background technology
Currently, for the wooden market sale share, mainly occupied for wood by unsaturated polyester (UP), main application is in shoes mould for lumber yard
Industry.And epoxy resin generation wood is then mainly used in the die industries such as automobile, space shuttle.
During industrial production application, unsaturated polyester generation wood is bad mainly due to its dimensional stability, without
It can apply to the molds such as automobile, the space shuttle generation wooden field.In addition, there are storage stabilities for the unsaturated polyester generation wooden raw material
The problems such as difference requires height to storage safety condition, and raw material toxicity is big in process, environmental pollution is more serious.No
Saturated resin is fast in manufacturing process curing rate, and volume contraction is big, is very easy to cracking；In addition, unsaturated-resin is anti-when curing
Answer that heat release is violent and the time is short, finished product is easy to generate stomata.Above-mentioned two aspects description is that unsaturated polyester (UP) finished product is caused to close
The main reason for lattice rate is relatively low.
In contrast, epoxy resin generation wood has good stability of the dimension, the raw material storing of its preparation is stablized, environment
It pollutes the advantages that small, and is gradually applied in industrial actual production.Epoxy resin generation wood disclosed in the prior art, there is also finished products
It is easily deformed, the problems such as to cure volume contraction larger, is easy cracking, and finished product stomata is more, Density inhomogeneity, leads in process
Cause product qualified rate relatively low.
Invention content
In view of this, the technical problem to be solved in the present invention is to provide a kind of epoxy resin for wood and preparation method thereof,
Epoxy resin provided by the invention is few for the wooden good toughness, stomata.
The present invention provides a kind of epoxy resin generation wood, are obtained by the reaction by resin Composition and curing component；
The resin Composition is obtained by the reaction under the effect of the catalyst by epoxy resin and toughener；The toughener is selected from
Nitrile rubber, a polyacids, dimeric dibasic acid, trimer acid and polyethylene it is one or more；The catalyst is by dimethylamino methyl benzene
Phenol and imidazole and its derivants composition；
The curing component includes the fatty acid anhydride, catalyst and hollow glass micropearl of C3~C20；The catalyst is by two
Methyaminomethyl phenol and imidazole and its derivants composition.
Preferably, in the resin Composition catalyst by 60wt%~90wt% dimethylaminomethylphenol and 10wt%
The imidazole and its derivants of~40wt% form.
Preferably, in the curing component catalyst by 10wt%~35wt% dimethylaminomethylphenol and 60wt%
The imidazole and its derivants of~85wt% form.
Preferably, the imidazole and its derivants are selected from imidazoles, benzimidazole, 4-methylimidazole, 2- ethyl imidazol(e)s and 4-
It is one or more in aminooimidazole.
Preferably, the weight ratio of the resin Composition and curing component is (0.5~1)：(0.5~1).
Preferably, in the resin Composition, the weight ratio of epoxy resin, toughener and catalyst is (45~85)：(12~
55)：(0.1~1.0).
Preferably, in the curing component, the fatty acid anhydride of C3~C20, the weight ratio of catalyst and hollow glass micropearl
For (60~85)：(0.02~1.0)：(15~40).
The present invention provides a kind of preparation methods of epoxy resin generation wood, include the following steps：
A) resin Composition is obtained by the reaction in epoxy resin and toughener under the effect of the catalyst；The toughener is selected from butyronitrile
Rubber, a polyacids, dimeric dibasic acid, trimer acid and polyethylene it is one or more；The catalyst by dimethylaminomethylphenol and
Imidazole and its derivants form；
The fatty acid anhydride, catalyst and hollow glass micropearl of C3~C20 are mixed, curing component is obtained；The catalyst
It is made of dimethylaminomethylphenol and imidazole and its derivants；
B) that resin Composition and curing component is mixing cured, obtain epoxy resin generation wood.
Preferably, the step B) condition of cure is 50~90 DEG C of 12~48h of solidification, solidification 12 at 100~150 DEG C~
36h。
Preferably, the step A) reaction condition be 35~65 DEG C at keep 15~75min, be warming up at 100~150 DEG C
3~10h of sustained response.
Compared with prior art, it the present invention provides a kind of epoxy resin generation wood, is reacted by resin Composition and curing component
It obtains；The resin Composition is obtained by the reaction under the effect of the catalyst by epoxy resin and toughener；The toughener is selected from fourth
Nitrile rubber, a polyacids, dimeric dibasic acid, trimer acid and polyethylene it is one or more；The catalyst is by dimethylaminomethylphenol
It is formed with imidazole and its derivants；The curing component includes the fatty acid anhydride, catalyst and hollow glass micropearl of C3~C20；
The catalyst is made of dimethylaminomethylphenol and imidazole and its derivants.The present invention under the effect of the catalyst, is being set
The toughener such as embedded nitrile rubber, poly acid in fat component, then occur under the effect of the catalyst with the fatty acid anhydride of C3~C20
Curing reaction obtains epoxy resin generation wood；By above-mentioned nitrile rubber, poly acid, epoxy resin, C3~C20 fatty acid anhydride,
The collective effect of catalyst and hollow glass micropearl makes the epoxy resin generation wooden good toughness that the present invention is prepared, and stomata is few,
Not easy to crack and deformation.
Specific implementation mode
The present invention provides a kind of epoxy resin generation wood, are obtained by the reaction by resin Composition and curing component；
The resin Composition is obtained by the reaction under the effect of the catalyst by epoxy resin and toughener；The toughener is selected from
Nitrile rubber, a polyacids, dimeric dibasic acid, trimer acid and polyethylene it is one or more；The catalyst is by dimethylamino methyl benzene
Phenol and imidazole and its derivants composition；
The curing component includes the fatty acid anhydride, catalyst and hollow glass micropearl of C3~C20；The catalyst is by two
Methyaminomethyl phenol and imidazole and its derivants composition.
Epoxy resin generation wood provided by the invention, is obtained by the reaction by resin Composition and curing component.The resin Composition and
The weight ratio of curing component is preferably (0.5~1)：(0.5~1)；More preferably (0.6~0.9)：(0.6~0.9).
Resin Composition of the present invention is obtained by the reaction under the effect of the catalyst by epoxy resin and toughener.
The present invention, without limiting, can be commercially available for the epoxy resin source.Toughener of the present invention is selected from
It is one or more in nitrile rubber, a polyacids, dimeric dibasic acid, trimer acid and polyethylene；It is preferably selected from nitrile rubber and trimer acid
It is one or more.
In the present invention, the catalyst is made of dimethylaminomethylphenol and imidazole and its derivants；Preferably, by
The dimethylaminomethylphenol of 60wt%~90wt% and the imidazole and its derivants composition of 10wt%~40wt%；More preferably
It is made of the dimethylaminomethylphenol of 65wt%~85wt% and the imidazole and its derivants of 15wt%~35wt%.The present invention
The imidazole and its derivants are preferably selected from imidazoles, benzimidazole, 4-methylimidazole, 2- ethyl imidazol(e)s and 4- aminooimidazoles
It is one or more.
In the present invention, the weight ratio of the epoxy resin, toughener and catalyst is preferably (45~85)：(12~
55)：(0.1~1.0)；More preferably (50~80)：(15~50)：(0.2~0.9).
The present invention is milder by selecting the reaction of the above-mentioned epoxy resin of above-mentioned catalyst and toughener so that generation
Wood is not easy to crack, deforms.
In the present invention, the resin Composition is preferably mixed with mill base after the completion of reaction, the mill base and the epoxy
The weight ratio of resin is preferably (1~3)：(45~85).
Curing component of the present invention includes the fatty acid anhydride, catalyst and hollow glass micropearl of C3~C20；The catalysis
Agent is made of dimethylaminomethylphenol and imidazole and its derivants.
The curing component preferably includes the fatty acid anhydride of C3~C18；The catalyst is preferably by 10wt%~35wt%
Dimethylaminomethylphenol and 60wt%~85wt% imidazole and its derivants composition；More preferably by 15wt%~35wt%
Dimethylaminomethylphenol and 65wt%~80wt% imidazole and its derivants composition.Imidazoles of the present invention and its derivative
Object is preferably selected from one or more in imidazoles, benzimidazole, 4-methylimidazole, 2- ethyl imidazol(e)s and 4- aminooimidazoles.
In the present invention, in the curing component, the fatty acid anhydride of C3~C20, the weight of catalyst and hollow glass micropearl
Amount is than being preferably (60~85)：(0.02~1.0)：(15~40)；More preferably (65~80)：(0.05~0.9)：(18~
38)。
The present invention is used as toughener, simultaneous selection long chain fatty acids by adding above-mentioned nitrile rubber etc. in resin Composition
Acid anhydride is as curing component, curing reaction under the action of special catalyst, improves the toughness of epoxy generation wood, anti-to improve it
The ability of cracking and deformation.Real density and the low hollow glass micropearl of oil absorption are selected simultaneously, ensure that epoxy resin generation wood
Density it is uniform, and stomata substantially reduces, while can adjust the generation wooden density, buffer the stress in solidification process and be produced for wood
Product thermal shock ability.Epoxy resin and curing component is made to react mild by above-mentioned specific catalyst, final products are not
Easy to crack and deformation.
The present invention provides a kind of preparation methods of epoxy resin generation wood, include the following steps：
A) resin Composition is obtained by the reaction in epoxy resin and toughener under the effect of the catalyst；The toughener is selected from butyronitrile
Rubber, a polyacids, dimeric dibasic acid, trimer acid and polyethylene it is one or more；The catalyst by dimethylaminomethylphenol and
Imidazole and its derivants form；
The fatty acid anhydride, catalyst and hollow glass micropearl of C3~C20 are mixed, curing component is obtained；The catalyst
It is made of dimethylaminomethylphenol and imidazole and its derivants；
B) that resin Composition and curing component is mixing cured, obtain epoxy resin generation wood.
The preparation method of epoxy resin provided by the invention generation wood by epoxy resin and toughener under the effect of the catalyst
Resin Composition is obtained by the reaction.
The one kind or more of toughener of the present invention in nitrile rubber, a polyacids, dimeric dibasic acid, trimer acid and polyethylene
Kind；It is preferably selected from the one or more of nitrile rubber and trimer acid.In the present invention, the catalyst is by dimethylamino methyl benzene
Phenol and imidazole and its derivants composition；Preferably, by the dimethylaminomethylphenol of 60wt%~90wt% and 10wt%~
The imidazole and its derivants of 40wt% form；More preferably by the dimethylaminomethylphenol of 65wt%~85wt% and 15wt%
The imidazole and its derivants of~35wt% form.Imidazole and its derivants of the present invention are preferably selected from imidazoles, benzimidazole, 4-
It is one or more in methylimidazole, 2- ethyl imidazol(e)s and 4- aminooimidazoles.
The present invention is preferably specially that epoxy resin and catalyst are mixed first；The whipping temp is preferably 35~
65℃；More preferably 40~60 DEG C；Most preferably 45~55 DEG C；The mixing speed is preferably 1000~2000rpm；More preferably
For 1100~1900rpm；The mixing time is preferably 15~90min；More preferably 20~80min；Most preferably 30~
70min。
It is mixed with toughener after stirring, continues stirring, reaction.At this point, the temperature of stirring is preferably 35~65 DEG C；More preferably
It is 40~60 DEG C；Most preferably 45~55 DEG C.The time of the stirring is preferably 15~75min；More preferably 20~70min；
Most preferably 30~60min.
After stirring, temperature reaction；The reaction temperature is preferably 100~150 DEG C, more preferably 110~140 DEG C；It is described
Reaction time is preferably 3~10h；More preferably 4~9h；Most preferably 5~8h.
In the present invention, the weight ratio of the epoxy resin, toughener and catalyst is preferably (45~85)：(12~
55)：(0.1~1.0)；More preferably (50~80)：(15~50)：(0.2~0.9).
After the completion of reaction, preferably further include：Cooling is mixed with mill base, is stirred, is obtained resin Composition.
The cooling is preferably cooled to 25~55 DEG C；More preferably 30~55 DEG C；Most preferably 35~50 DEG C.The color
The weight ratio of slurry and the epoxy resin is preferably (1~3)：(45~85)；The mixing time is preferably 15~90min；More
Preferably 20~70min；Most preferably 30~60min.
The present invention for the mill base specific type without limit, meet specifically used requirement, can be city
It sells.
In the present invention, the fatty acid anhydride of C3~C20, catalyst and hollow glass micropearl are mixed, obtains curing component；
The catalyst is made of dimethylaminomethylphenol and imidazole and its derivants.
The curing component preferably includes the fatty acid anhydride of C3~C18；The catalyst is preferably by 10wt%~35wt%
Dimethylaminomethylphenol and 60wt%~85wt% imidazole and its derivants composition；More preferably by 15wt%~35wt%
Dimethylaminomethylphenol and 65wt%~80wt% imidazole and its derivants composition.Imidazoles of the present invention and its derivative
Object is preferably selected from one or more in imidazoles, benzimidazole, 4-methylimidazole, 2- ethyl imidazol(e)s and 4- aminooimidazoles.
In the present invention, it is preferred to be specially：The fatty acid anhydride of C3~C20 and catalyst are mixed, high-speed stirred；It is described to stir
It is 30~60 DEG C to mix temperature；More preferably 35~55 DEG C；Most preferably 40~50 DEG C；The mixing speed is preferably 1000~
3000rpm；More preferably 1000~2000rpm；The mixing time is preferably 15~90min；More preferably 20~80min；
Most preferably 30~60min.
It mixes, stirs with hollow glass micropearl after stirring；The mixing speed is preferably 10~75rpm；More preferably
For 20~70rpm；Most preferably 30~60rpm；The mixing time is preferably 10~60min；More preferably 20~50min.
In the present invention, in the curing component, the fatty acid anhydride of C3~C20, the weight of catalyst and hollow glass micropearl
Amount is than being preferably (60~85)：(0.02~1.0)：(15~40)；More preferably (65~80)：(0.05~0.9)：(18~
38)。
It is after resin Composition and curing component is prepared, resin Composition and curing component is mixing cured, obtain asphalt mixtures modified by epoxy resin
Fat generation wood.Preferably under vacuum, stirring at low speed mixes.
In the present invention, the weight ratio of the resin Composition and curing component is preferably (0.5~1.0)：(0.5~1.0)；
More preferably (0.6~0.9)：(0.6~0.9)；
The vacuum condition is preferably 10~200mbar；More preferably 10~150mbar；Most preferably 20~
100mbar.The mixing speed is preferably 10~30rpm；More preferably 10~25rpm；Most preferably 10~20rpm.It is described
Mixing time is preferably 15~90min；More preferably 20~80min, most preferably 25~70min.
It preferably squeezes out, be perfused after the completion of stirring, solidification.
The present invention is squeezed out with perfusion equipment for described without limiting, well known to those skilled in the art；This hair
The bright extrusion pressure is preferably 1000~2000mbar；More preferably 1100~1900mbar, most preferably 1200~
1800mbar。
Condition of cure of the present invention be preferably 20~30 DEG C solidification 24~36h, 50~90 DEG C solidification 12~48h, 100~
Cure 12~36h at 150 DEG C.More preferably 20~30 DEG C solidification 24~36h, 55~85 DEG C solidification 15~45h, 100~140 DEG C
15~30h of lower solidification；Most preferably 23~28 DEG C 30~36h of solidification, 65~80 DEG C cure 20~40h, consolidate at 100~140 DEG C
Change 20~30h.
Cure postcooling to room temperature, Dai Mu is removed from the molds, is the Dai Mu of predetermined size by cutting.
The present invention provides a kind of epoxy resin generation wood, are obtained by the reaction by resin Composition and curing component；The resin group
Divide and is obtained by the reaction under the effect of the catalyst by epoxy resin and toughener；The toughener is selected from nitrile rubber, a polyacids, two
Polyacids, trimer acid and polyethylene it is one or more；The catalyst is by dimethylaminomethylphenol and imidazole and its derivants
Composition；The curing component includes the fatty acid anhydride, catalyst and hollow glass micropearl of C3~C20；The catalyst is by diformazan
Amino methyl phenol and imidazole and its derivants composition.The present invention under the effect of the catalyst, is embedded in butyronitrile in resin Composition
The toughener such as rubber, poly acid, then be cured and react under the effect of the catalyst with the fatty acid anhydride of C3~C20, obtain ring
Oxygen resin generation wood；Pass through above-mentioned nitrile rubber, poly acid, epoxy resin, the fatty acid anhydride of C3~C20, catalyst and hollow glass
The collective effect of glass microballon makes the epoxy resin generation wooden good toughness that the present invention is prepared, and stomata is few, not easy to crack and deformation.
Present invention preferably employs such as under type to carry out performance measurement to the generation wood being prepared：
Hardness shore D---ASTM D-2240
Stomata (number/m2) --- range estimation, 1.0cm2≤ 1；
Glass transition temperature (DEG C) --- ASTM D-4065
Coefficient of thermal expansion (- 30 DEG C~30 DEG C, in/in/ DEG C) --- ASTM D3386
Appearance cracks and deformation --- and whether range estimation finished product cracks or deforms
Bending modulus (Mpa) --- --- ASTM D-790
Compression modulus (Mpa) --- ASTM D-695
In order to further illustrate the present invention, with reference to embodiments to epoxy resin provided by the invention generation wood and its preparation
Method is described in detail.
Embodiment 1
The imidazoles mixing of (dimethylamino methyl) phenol of 2,4,6- tri- and 40wt% of epoxy resin 69.0Kg and 60wt%
Catalyst 0.5Kg, high speed 1000rpm stirs 30min at 55 DEG C, and 30.0Kg is then added and contains the butyronitrile reacted with epoxy group
Rubber toughener.Continue at 55 DEG C after stirring 45min, is warming up to sustained response 5hrs at 120 DEG C.After the completion of reaction, drop
Temperature is added mill base 0.95Kg and stirs evenly as resin Composition to 55 DEG C.
(dimethylamino methyl) phenol of 2,4,6- tri- and 85wt% of long-chain fat race the acid anhydrides 73.0Kg and 15wt% of C10
The catalyst 0.10Kg of imidazoles stir 45min in 50 DEG C of high speed 1000rpm, the sky of 26.90Kg is then added under low speed 30rpm
Heart glass microsphere, stirring 20min become uniform mixture curing component.
Resin Composition is with curing component with weight ratio 1:1, in the case where vacuum degree is 100mbar, stirs under low speed 20rpm
25min is uniformly mixed.
Extrusion equipment pressure is set as 1200mbar, and uniformly mixed material is filled into and is touched in tool, straight after the completion of perfusion
It connects and is heated to 80 DEG C of solidification 36hrs, cure rs for 24 hours at 100 DEG C, be finally cooled to room temperature.Dai Mucong is touched in tool and is taken out, then is passed through
Cross the Dai Mu of size as defined in cutting to.
Performance measurement is carried out according to mode of the present invention to the Dai Mu that the embodiment of the present invention is prepared, as a result such as table 1
Shown, table 1 is the generation wood performance measurement result that the embodiment of the present invention is prepared.
Embodiment 2
The benzimidazole of 2,4,6- tri- (dimethylamino methyl) phenol and 30wt% of epoxy resin 75.0Kg and 70wt%
Catalyst 1.0Kg, high speed 1500rpm stirs 20min at 45 DEG C.Then 15.0Kg is added and contains the butyronitrile reacted with epoxy group
Rubber toughener and 15.0kg trimer acids toughener continue at 60 DEG C after stirring 45min, are warming up to sustained response at 125 DEG C
8h.After the completion of reaction, 55 DEG C are cooled to, mill base 0.95Kg is added and is stirred evenly as resin Composition.
(dimethylamino methyl) phenol of 2,4,6- tri- and 80wt% of long-chain fat race the acid anhydrides 73.0Kg and 20wt% of C15
Benzimidazole catalyst 0.60Kg stir 45min in 50 DEG C of high speed 1500rpm, the sky of 30Kg is then added under low speed 25rpm
Heart glass microsphere, stirring 30min become uniform mixture curing component.
Resin Composition is with curing component with weight ratio 1:1, in the case where vacuum degree is 80mbar, 25min is stirred under low speed 20rpm,
It is uniformly mixed.
Extrusion equipment pressure is set as 1200mbar, and uniformly mixed material is filled into and is touched in tool, at 25 DEG C of room temperature
Cure 36h；Then cure 40h for 60 DEG C, cure 30h at 120 DEG C, be finally cooled to room temperature.Dai Mucong is touched in tool and is taken out, then is passed through
Cross the Dai Mu of size as defined in cutting to.
Performance measurement is carried out according to mode of the present invention to the Dai Mu that the embodiment of the present invention is prepared, as a result such as table 1
Shown, table 1 is the generation wood performance measurement result that the embodiment of the present invention is prepared.
Embodiment 3
(dimethylamino methyl) phenol of 2,4,6- tri- of epoxy resin 60.0Kg and 80wt% and the 4- methyl miaows of 20wt%
Azoles catalyst 0.5Kg, high speed 1000rpm stirs 30min at 65 DEG C.Then 20.0Kg is added and contains the fourth reacted with epoxy group
Nitrile rubber class toughener and 15.0kg trimer acids toughener continue at 55 DEG C after stirring 45min, are warming up at 135 DEG C and continue instead
Answer 8h.After the completion of reaction, 50 DEG C are cooled to, mill base 0.95Kg is added and is stirred evenly as resin Composition.
(dimethylamino methyl) phenol of 2,4,6- tri- and 70wt% of long-chain fat race the acid anhydrides 80.0Kg and 30wt% of C8
2- ethyl imidazol(e) catalyst 0.50Kg stir 45min in 50 DEG C of high speed 1200rpm, be then added 35Kg's under low speed 15rpm
Hollow glass micro-ball, stirring 20min become uniform curing component.
Resin Composition is with curing component with weight ratio 1:0.8, in the case where vacuum is 50mbar, 35min is stirred under low speed 20rpm,
It is uniformly mixed.
Extrusion equipment pressure is set as 1200mbar, and uniformly mixed material is filled into and is touched in tool, at 25 DEG C of room temperature
Cure 36hrs；Then cure 30hrs for 90 DEG C, cure 36hrs at 140 DEG C, be finally cooled to room temperature.Dai Mucong is touched in tool and is taken
Go out, using the Dai Mu for cutting to defined size.
Performance measurement is carried out according to mode of the present invention to the Dai Mu that the embodiment of the present invention is prepared, as a result such as table 1
Shown, table 1 is the generation wood performance measurement result that the embodiment of the present invention is prepared.
Table 1 is the generation wood performance measurement result that the embodiment of the present invention is prepared
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
Claims (10)
1. a kind of epoxy resin generation wood, is obtained by the reaction by resin Composition and curing component；
The resin Composition is obtained by the reaction under the effect of the catalyst by epoxy resin and toughener；The toughener is selected from butyronitrile
Rubber, a polyacids, dimeric dibasic acid, trimer acid and polyethylene two or more；The catalyst is by dimethylamino methyl benzene
Phenol and imidazole and its derivants composition；
The curing component includes the fatty acid anhydride, catalyst and hollow glass micropearl of C3~C20；The catalyst is by diformazan ammonia
Ylmethyl phenol and imidazole and its derivants composition.
2. epoxy resin generation wood according to claim 1, which is characterized in that catalyst is by 60wt% in the resin Composition
The dimethylaminomethylphenol of~90wt% and the imidazole and its derivants composition of 10wt%~40wt%.
3. epoxy resin generation wood according to claim 1, which is characterized in that catalyst is by 10wt% in the curing component
The dimethylaminomethylphenol of~35wt% and the imidazole and its derivants composition of 60wt%~85wt%.
4. epoxy resin generation wood according to claim 2 or 3, which is characterized in that the imidazole and its derivants are selected from miaow
It is one or more in azoles, benzimidazole, 4-methylimidazole, 2- ethyl imidazol(e)s and 4- aminooimidazoles.
5. epoxy resin generation wood according to claim 1, which is characterized in that the weight of the resin Composition and curing component
Than for (0.5~1)：(0.5~1).
6. epoxy resin generation wood according to claim 1, which is characterized in that in the resin Composition, epoxy resin, toughening
The weight ratio of agent and catalyst is (45~85)：(12~55)：(0.1~1.0).
7. epoxy resin generation wood according to claim 1, which is characterized in that in the curing component, the fat of C3~C20
The weight ratio of acid anhydrides, catalyst and hollow glass micropearl is (60~85)：(0.02~1.0)：(15~40).
8. a kind of preparation method of epoxy resin generation wood, which is characterized in that include the following steps：
A) resin Composition is obtained by the reaction in epoxy resin and toughener under the effect of the catalyst；The toughener is selected from butyronitrile rubber
Glue, a polyacids, dimeric dibasic acid, trimer acid and polyethylene two or more；The catalyst is by dimethylaminomethylphenol
It is formed with imidazole and its derivants；
The fatty acid anhydride, catalyst and hollow glass micropearl of C3~C20 are mixed, curing component is obtained；The catalyst is by two
Methyaminomethyl phenol and imidazole and its derivants composition；
B) that resin Composition and curing component is mixing cured, obtain epoxy resin generation wood.
9. preparation method according to claim 8, which is characterized in that the step B) condition of cure be 50~90 DEG C solidification
12~48h cures 12~36h at 100~150 DEG C.
10. preparation method according to claim 8, which is characterized in that the step A) reaction condition be 35~65 DEG C at
15~75min is kept, 3~10h of sustained response at 100~150 DEG C is warming up to.
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| CN102206400A (en) * | 2010-03-31 | 2011-10-05 | 比亚迪股份有限公司 | Enhancement paster matrix, enhancement paster and steel plate composite material |
| CN103013045A (en) * | 2012-12-13 | 2013-04-03 | 东莞市海旭工艺制品有限公司 | Novel preparation method of epoxy tooling board |
| CN103030934A (en) * | 2012-12-13 | 2013-04-10 | 东莞市海旭工艺制品有限公司 | Novel epoxy wood substitute |
| CN103113716A (en) * | 2013-01-28 | 2013-05-22 | 北京化工大学常州先进材料研究院 | Preparation method of dimer acid modified epoxy resin toughened carbon fiber prepreg |
| CN103965590A (en) * | 2014-05-16 | 2014-08-06 | 华中科技大学 | Synergistically toughened epoxy resin composite material and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102206400A (en) * | 2010-03-31 | 2011-10-05 | 比亚迪股份有限公司 | Enhancement paster matrix, enhancement paster and steel plate composite material |
| CN103013045A (en) * | 2012-12-13 | 2013-04-03 | 东莞市海旭工艺制品有限公司 | Novel preparation method of epoxy tooling board |
| CN103030934A (en) * | 2012-12-13 | 2013-04-10 | 东莞市海旭工艺制品有限公司 | Novel epoxy wood substitute |
| CN103113716A (en) * | 2013-01-28 | 2013-05-22 | 北京化工大学常州先进材料研究院 | Preparation method of dimer acid modified epoxy resin toughened carbon fiber prepreg |
| CN103965590A (en) * | 2014-05-16 | 2014-08-06 | 华中科技大学 | Synergistically toughened epoxy resin composite material and preparation method thereof |
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