CN107189019B - A kind of lower shrinkage concrete modified epoxy vinyl resin and preparation method - Google Patents
A kind of lower shrinkage concrete modified epoxy vinyl resin and preparation method Download PDFInfo
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- CN107189019B CN107189019B CN201710601902.4A CN201710601902A CN107189019B CN 107189019 B CN107189019 B CN 107189019B CN 201710601902 A CN201710601902 A CN 201710601902A CN 107189019 B CN107189019 B CN 107189019B
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F285/00—Macromolecular compounds obtained by polymerising monomers on to preformed graft polymers
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F283/00—Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass C08G
- C08F283/10—Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass C08G on to polymers containing more than one epoxy radical per molecule
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Abstract
The invention discloses a kind of lower shrinkage concrete modified epoxy vinyl resin and preparation method, the mass parts of raw material components and each component are as follows: modified epoxy: 15 ~ 32 parts；Unsaturated monoacid: 18 ~ 38 parts；Shrinking agent: 2 ~ 8 parts；Catalyst A:0.01 ~ 0.5 part；Catalyst B:0.01 ~ 0.1 part polymerization inhibitor: 0.05 ~ 0.1 part；Crosslinking agent: 20 ~ 32 parts；Initiator: 0.01 ~ 0.05 part；Wherein, modified epoxy includes hydrogenated epoxy resin and bisphenol A type epoxy resin, and hydrogenated epoxy resin: the mass component ratio of bisphenol A type epoxy resin is 1:2 ~ 2:1.The present invention utilizes the good weatherability of bisphenol-A epoxy resin, media-filling rate at double, linear expansivity and shrinking percentage and water absorption rate, epoxy resin is modified, both tensile strength, elasticity modulus and the compression strength of epoxy resin ensure that, the weatherability and stability of epoxy vingl ester resin are improved again, epoxy vingl ester resin shrinking percentage is reduced simultaneously, meets the multiple requirements of concrete resin.
Description
Technical field
The present invention relates to a kind of lower shrinkage concrete modified epoxy vinyl resin and preparation methods, belong to concrete neck
Domain.
Background technique
Epoxy vinyl ester resin has the excellent performance of epoxy resin and unsaturated polyester resin concurrently, therefore in chemical anticorrosion
The everyways such as erosion, flue gas desulfurization, communications and transportation, electronic apparatus, ships and light boats are widely used.And there are good low receipts
Contracting, compared with 1%~3% shrinking percentage of 6%~8% and epoxy resin of general rich horse alkene vinylite, ring
The shrinking percentage of ethylene oxide base ester resin is only 0.5%, but epoxy vinyl ester resin is copolymerized when closing reaction, in ingress of air
Superficial layer be also easy to produce tacky phenomenon, stability and weatherability are poor.The use environment more severe for concrete, epoxy
There are very strong unworthiness for the application of vinyl ester resin.
Ring-opening reaction generates chloropharin ether under the action of catalyst for hydrogenated bisphenol A and epoxychloropropane, and then plus alkali carries out
Ring-closure reaction, is prepared for the quality hydrogenated bisphenol A type epoxy resin of low molecule, then it is further added with hydrogenated bisphenol A etc.
Poly- reaction, obtains high molecule mass epoxy resin.
Bisphenol-A epoxy resin has the property that
1) its molecular structure is quite analogous to bisphenol A type epoxy resin, similar performance, since phenyl ring is transformed into saturation six
Member ring overcomes the fracture defect of double bond, shows good weatherability, Inverter fed motor, resistance to tracking, high dielectric strength,
Chemical resistance.
2) it is not directly to connect that the significant difference of bisphenol-A epoxy resin and cycloaliphatic epoxy resin, which is its epoxy group,
On alicyclic ring, but it is connected to the glycidyl of side chain ehter bond, there is the reactivity of similar bisphenol A type epoxy resin, it can
Using amine curing agent room temperature curing, application field has been widened.
3) viscosity is small, suitable with bisphenol f type epoxy resin, only the 1/5~1/4 of general bisphenol A type epoxy resin.As
Cast material, media-filling rate up to 150%~200%, can be significantly reduced resin cured matter linear expansivity and shrinking percentage,
Water absorption rate, manufacturing cost substantially reduce.
4) gel time is about 2 times of bisphenol A type epoxy resin or so, has longer working life, imparts asphalt mixtures modified by epoxy resin
Rouge excellent technology stability and processing technology.In short, can smoothly realize open air without changing curing process using producer
The upgrading of the rolled product variety adjustment and product structure of epoxy resin.
Summary of the invention
Purpose: the present invention provides a kind of lower shrinkage concrete modified epoxy vinyl resin and preparation methods, utilize
The good weatherability of bisphenol-A epoxy resin, media-filling rate at double, linear expansivity and shrinking percentage and water absorption rate, it is right
Epoxy resin is modified, and not only ensure that tensile strength, elasticity modulus and the compression strength of epoxy resin, but also improves epoxy second
The weatherability and stability of ene based resins, while epoxy vingl ester resin shrinking percentage is reduced, meet concrete resin
Multiple requirements.
Technical scheme is as follows:
The mass parts of a kind of lower shrinkage concrete modified epoxy vinyl resin, raw material components and each component are as follows:
Modified epoxy: 15~32 parts；
Unsaturated monoacid: 18~38 parts；
Shrinking agent: 2~8 parts；
Catalyst A:0.01~0.5 part；
Catalyst B:0.01~0.1 part
Polymerization inhibitor: 0.05~0.1 part；
Crosslinking agent: 20~32 parts；
Initiator: 0.01~0.05 part；
Wherein, modified epoxy includes hydrogenated epoxy resin and bisphenol A type epoxy resin, and hydrogenated epoxy resin: double
The mass component ratio of phenol A type epoxy resin is 1:2~2:1.
Preferably, the hydrogenated epoxy resin is bisphenol-A epoxy resin, and the bisphenol A type epoxy resin is ring
Oxygen equivalent is the bisphenol A diglycidyl ether of 176~263g/mol.
Preferably, the shrinking agent be polyvinyl acetate, saturated polyester, polycaprolactone, polyurethane, block type it is poly-
Or mixtures thereof one of acetic acid-styrene, modified low cross linked polystyrene.
Preferably, the unsaturated monoacid is acrylic or methacrylic acid.
Preferably, the catalyst B is triphenylphosphine hydrogen, tetrabutylammonium bromide, benzyltrimethylammonium chloride, benzyl three
Methyl bromide ammonium, benzyltriethylammoinium chloride, tetraethylammonium bromide, tetrabutylammonium chloride, one in benzyl triethyl ammonium bromide
Kind.
Preferably, the catalyst A is one of basic catalyst, including zirconium dioxide, sodium hydroxide or sodium titanate.
Preferably, the initiator is triphenyl silanol-tri ethylacetoacetate aluminium.
Preferably, the crosslinking agent is diallyl phthalate, styrene, triallyl cyanurate, bicyclic penta
One of diene acrylate, butyl acrylate, methyl methacrylate or a variety of mixtures.
Preferably, the polymerization inhibitor is one of hydroquinone, methyl hydroquinone, 1,4-benzoquinone or copper naphthenate solution
Or two kinds of mixtures.
A kind of preparation method of lower shrinkage concrete modified epoxy vinyl resin,
Step 1: modified epoxy is prepared
Hydrogenated epoxy resin and bisphenol A type epoxy resin are weighed in proportion, be added in reaction kettle and be heated with stirring to 100~
135 DEG C, while catalyst A and partial cross-linked dose is added by mass component, the pH value for controlling reaction system is 7.6~8.8, herein
Under the conditions of sufficiently react 20~30 minutes；
Step 2: modified epoxy vinyl resin is prepared
The reaction temperature of the modified epoxy epoxy resin reaction kettle of step 1 is persistently cooled down and controlled at 55~80
DEG C, at the same weigh appropriate mass component, initiator, catalyst B and shrinking agent and remaining ingredient crosslinking agent, and in order
Reaction kettle is added, reacts 0.5~2h, reaction system keeps temperature after becoming uniformly, until measuring acid value less than 15mgKOH/g.
The utility model has the advantages that the present invention provides a kind of lower shrinkage concrete modified epoxy vinyl resin and preparation method, tool
It has the advantage that
1) by introducing bisphenol-A epoxy resin in bisphenol A type epoxy resin, reduce part bisphenol-A type ring
Phenyl ring content in oxygen resin, under the premise of the tensile strength, elasticity modulus, compression strength and the deformation temperature that ensure that epoxy resin,
Improve the toughness and elongation at break of epoxy resin lotus；
2) use of bisphenol-A epoxy resin, improves media-filling rate, up to 150%~200%, drops significantly
The low cure shrinkage of material, linear expansivity and water absorption rate；
3) use of bisphenol-A epoxy resin reduces phenyl ring content, reduces the reactivity of resin, improves
The weatherability of system, meets the multiple requirements of concrete resin, and greatly reduces production cost.
Specific embodiment
In order to make those skilled in the art better understand the technical solutions in the application, in the embodiment of the present application
Technical solution is clearly and completely described, it is clear that and described embodiments are only a part of embodiments of the present application, without
It is whole embodiments.Based on the embodiment in the application, those of ordinary skill in the art are not before making creative work
Every other embodiment obtained is put, shall fall within the protection scope of the present application.
The mass parts of a kind of lower shrinkage concrete modified epoxy vinyl resin, raw material components and each component are as follows:
Modified epoxy: 15~32 parts；
Unsaturated monoacid: 18~38 parts；
Shrinking agent: 2~8 parts；
Catalyst A:0.01~0.5 part；
Catalyst B:0.01~0.1 part
Polymerization inhibitor: 0.05~0.1 part；
Crosslinking agent: 20~32 parts；
Initiator: 0.01~0.05 part；
Wherein, modified epoxy includes hydrogenated epoxy resin and bisphenol A type epoxy resin, and hydrogenated epoxy resin: double
The mass component ratio of phenol A type epoxy resin is 1:2~2:1.
Preferably, the hydrogenated epoxy resin is bisphenol-A epoxy resin, and the bisphenol A type epoxy resin is ring
Oxygen equivalent is the bisphenol A diglycidyl ether of 176~263g/mol.
Preferably, the shrinking agent be polyvinyl acetate, saturated polyester, polycaprolactone, polyurethane, block type it is poly-
Or mixtures thereof one of acetic acid-styrene, modified low cross linked polystyrene.
Preferably, the unsaturated monoacid is acrylic or methacrylic acid.
Preferably, the catalyst B is triphenylphosphine hydrogen, tetrabutylammonium bromide, benzyltrimethylammonium chloride, benzyl three
Methyl bromide ammonium, benzyltriethylammoinium chloride, tetraethylammonium bromide, tetrabutylammonium chloride, one in benzyl triethyl ammonium bromide
Kind.
Preferably, the catalyst A is one of basic catalyst, including zirconium dioxide, sodium hydroxide or sodium titanate.
Preferably, the initiator is triphenyl silanol-tri ethylacetoacetate aluminium.
Preferably, the crosslinking agent is diallyl phthalate, styrene, triallyl cyanurate, bicyclic penta
One of diene acrylate, butyl acrylate, methyl methacrylate or a variety of mixtures.
Preferably, the polymerization inhibitor is one of hydroquinone, methyl hydroquinone, 1,4-benzoquinone or copper naphthenate solution
Or two kinds of mixtures.
A kind of preparation method of lower shrinkage concrete modified epoxy vinyl resin,
Step 1: modified epoxy is prepared
Hydrogenated epoxy resin and bisphenol A type epoxy resin are weighed in proportion, be added in reaction kettle and be heated with stirring to 100~
135 DEG C, while catalyst A and partial cross-linked dose is added by mass component, the pH value for controlling reaction system is 7.6~8.8, herein
Under the conditions of sufficiently react 20~30 minutes；
Step 2: modified epoxy vinyl resin is prepared
The reaction temperature of the modified epoxy epoxy resin reaction kettle of step 1 is persistently cooled down and controlled at 55~80
DEG C, at the same weigh appropriate mass component, initiator, catalyst B and shrinking agent and remaining ingredient crosslinking agent, and in order
Reaction kettle is added, reacts 0.5~2h, reaction system keeps temperature after becoming uniformly, until measuring acid value less than 15mgKOH/g.
Case study on implementation 1
1) modified epoxy is prepared
Hydrogenated epoxy resin and bisphenol A type epoxy resin (bisphenol-A epoxy resin: the contracting of bisphenol-A two are weighed in proportion
Water glycerin ether=1:2, mass component ratio, totally 15 parts), it is added in reaction kettle and is heated to 100 DEG C, while being added by mass component
Catalyst A (0.01 part of sodium titanate) and partial cross-linked dose (8 parts of styrene), the pH value for controlling reaction system is 7.6, in this condition
Lower sufficiently reaction 20 minutes；
2) modified epoxy vinyl resin is prepared
The reaction temperature of the modified epoxy epoxy resin reaction kettle of step 1 is persistently cooling and controlled at 55 DEG C, together
When weigh polymerization inhibitor (0.05 part of hydroquinone), initiator (the 0.01 part of triphenyl silanol-triacetyl acetic acid of appropriate mass component
Ethyl ester aluminium), catalyst B (0.01 part of triphenylphosphine hydrogen), shrinking agent (2 parts of polyvinyl acetate) and crosslinking agent (12 parts of benzene
Ethylene), and it is sequentially added into reaction kettle, 0.5h is reacted, reaction system keeps temperature after becoming uniformly, small until measuring acid value
In 15mgKOH/g to get modified epoxy vinyl resin is arrived, it is denoted as finished product 1.
Case study on implementation 2
1) modified epoxy is prepared
Hydrogenated epoxy resin and bisphenol A type epoxy resin (bisphenol-A epoxy resin: the contracting of bisphenol-A two are weighed in proportion
Water glycerin ether=1:2, mass component ratio, totally 22 parts), it is added in reaction kettle and is heated to 100 DEG C, while being added by mass component
Catalyst A (0.18 part of sodium titanate) and partial cross-linked dose (12 parts of styrene), the pH value for controlling reaction system is 8.0, at this
It is sufficiently reacted under part 25 minutes；
2) modified epoxy vinyl resin is prepared
The reaction temperature of the modified epoxy epoxy resin reaction kettle of step 1 is persistently cooling and controlled at 70 DEG C, together
When weigh polymerization inhibitor (0.08 part of hydroquinone), initiator (the 0.03 part of triphenyl silanol-triacetyl acetic acid of appropriate mass component
Ethyl ester aluminium), catalyst B (0.08 part of triphenylphosphine hydrogen), shrinking agent (5 parts of polyvinyl acetate) and crosslinking agent (15 parts of benzene
Ethylene), and it is sequentially added into reaction kettle, 1.0h is reacted, reaction system keeps temperature after becoming uniformly, is less than until measuring acid value
15mgKOH/g is denoted as finished product 2 to get modified epoxy vinyl resin is arrived.
Case study on implementation 3
1) modified epoxy is prepared
Hydrogenated epoxy resin and bisphenol A type epoxy resin (bisphenol-A epoxy resin: the contracting of bisphenol-A two are weighed in proportion
Water glycerin ether=1:2, mass component ratio, totally 32 parts), it is added in reaction kettle and is heated to 100 DEG C, while being added by mass component
Catalyst A (0.5 part of sodium titanate) and partial cross-linked dose (12 parts of styrene), the pH value for controlling reaction system is 8.8, in this condition
Lower sufficiently reaction 30 minutes；
2) modified epoxy vinyl resin is prepared
The reaction temperature of the modified epoxy epoxy resin reaction kettle of step 1 is persistently cooling and controlled at 80 DEG C, together
When weigh polymerization inhibitor (0.08 part of hydroquinone), initiator (the 0.05 part of triphenyl silanol-triacetyl acetic acid of appropriate mass component
Ethyl ester aluminium), catalyst B (0.1 part of triphenylphosphine hydrogen), shrinking agent (8 parts of polyvinyl acetate) and crosslinking agent (20 parts of benzene second
Alkene), and it is sequentially added into reaction kettle, 2h is reacted, reaction system keeps temperature after becoming uniformly, is less than until measuring acid value
15mgKOH/g is denoted as finished product 3 to get modified epoxy vinyl resin is arrived.
Finished product test: the universal bisphenol-A epoxy vinylite for being Derakane 411-350 with existing brand and model
As a control group, stretching experiment is carried out to finished product 1,2,3 and Derakane 411-350 respectively and cure shrinkage is tested, wherein
The measurement standard of stretching experiment is ASTM D638, and the measurement standard of cure shrinkage experiment presses GB611-88 and GB1033-86, real
It tests and the results are shown in Table 1.
Table 1
As seen from the above table, the epoxy vingl ester resin after hydrogenated epoxy resin modification, with existing Derakane411-
350 universal bisphenol-A epoxy vinylite is compared, and is had higher elongation at break, is improved the toughness of material itself,
The cure shrinkage for greatly reducing material again simultaneously, reduces the cracking risk of resin concrete.
The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention.
Various modifications to these embodiments will be readily apparent to those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, of the invention
It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one
The widest scope of cause.
Claims (7)
1. a kind of lower shrinkage concrete modified epoxy vinyl resin, which is characterized in that the matter of its raw material components and each component
It is as follows to measure part:
Modified epoxy: 15 ~ 32 parts；
Unsaturated monoacid: 18 ~ 38 parts；
Shrinking agent: 2 ~ 8 parts；
Catalyst A:0.01 ~ 0.5 part；
Catalyst B:0.01 ~ 0.1 part
Polymerization inhibitor: 0.05 ~ 0.1 part；
Crosslinking agent: 20 ~ 32 parts；
Initiator: 0.01 ~ 0. 05 parts；
Wherein, modified epoxy includes hydrogenated epoxy resin and bisphenol A type epoxy resin, and hydrogenated epoxy resin: bisphenol A-type
The mass component ratio of epoxy resin is 1:2~2:1, and the hydrogenated epoxy resin is bisphenol-A epoxy resin, described double
Phenol A type epoxy resin is the bisphenol-A diglycidyl ether that epoxide equivalent is 176~263g/mol, and the catalyst A is alkali
One of property catalyst, including zirconium dioxide, sodium hydroxide or sodium titanate.
2. a kind of lower shrinkage concrete modified epoxy vinyl resin according to claim 1, which is characterized in that described
Shrinking agent is polyvinyl acetate, acetic acid-styrene polymer of polycaprolactone, polyurethane, block type, modified low cross-linking gather
Or mixtures thereof one of styrene.
3. a kind of lower shrinkage concrete modified epoxy vinyl resin according to claim 1, which is characterized in that described
Unsaturated monoacid is acrylic or methacrylic acid.
4. a kind of lower shrinkage concrete modified epoxy vinyl resin according to claim 1, which is characterized in that described
Catalyst B is triphenylphosphine hydrogen, tetrabutylammonium bromide, benzyltrimethylammonium chloride, benzyltrimethylammonium bromide, three second of benzyl
One of ammonium chloride, tetraethylammonium bromide, tetrabutylammonium chloride, benzyl triethyl ammonium bromide.
5. a kind of lower shrinkage concrete modified epoxy vinyl resin according to claim 1, which is characterized in that described
Initiator is triphenyl silanol-tri ethylacetoacetate aluminium.
6. a kind of lower shrinkage concrete modified epoxy vinyl resin according to claim 1, which is characterized in that described
Crosslinking agent is diallyl phthalate, styrene, triallyl cyanurate, dicyclopentadiene acrylate, acrylic acid
One of butyl ester, methyl methacrylate or a variety of mixtures.
7. a kind of lower shrinkage concrete modified epoxy vinyl resin according to claim 1, which is characterized in that described
Polymerization inhibitor is one or both of hydroquinone, methyl hydroquinone, 1,4-benzoquinone or copper naphthenate solution mixture.
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| CN108410040A (en) * | 2018-04-22 | 2018-08-17 | 常州市五洲化工有限公司 | A kind of hydrogenated epoxy vinylite modified nitrile rubber and preparation method thereof |
| CN114516949B (en) * | 2020-11-20 | 2023-07-21 | 南通星辰合成材料有限公司 | Crystallization-resistant modified epoxy resin for joint beautifying agent and preparation method and application thereof |
| CN112608725B (en) * | 2020-12-15 | 2022-08-02 | 济源市宏鑫实业有限公司 | Gel type plugging agent and production process thereof |
| CN114702831A (en) * | 2022-03-23 | 2022-07-05 | 株洲中铁电气物资有限公司 | Modified resin composite material, preparation method thereof and cable support |
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| US20130274379A1 (en) * | 2010-06-25 | 2013-10-17 | Rajesh Turakhia | Polymer concrete composition |
| CN104910352A (en) * | 2015-05-26 | 2015-09-16 | 常州华科聚合物股份有限公司 | Vinyl ester resin for mold and preparation method thereof |
| CN105482754B (en) * | 2015-12-03 | 2018-09-07 | 苏州市建筑科学研究院集团股份有限公司 | A kind of chemical anchor bolts adhesive and preparation method thereof |
| CN105753367B (en) * | 2016-01-25 | 2018-09-14 | 重庆鹏方路面工程技术研究院有限公司 | A kind of resin concrete and preparation method thereof for bridge expanssion joint rapid-maintenance |
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