CN107418498A - A kind of elastic epoxy fire-proof potting compound and preparation method thereof - Google Patents
A kind of elastic epoxy fire-proof potting compound and preparation method thereof Download PDFInfo
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- CN107418498A CN107418498A CN201710810931.1A CN201710810931A CN107418498A CN 107418498 A CN107418498 A CN 107418498A CN 201710810931 A CN201710810931 A CN 201710810931A CN 107418498 A CN107418498 A CN 107418498A
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J175/00—Adhesives based on polyureas or polyurethanes; Adhesives based on derivatives of such polymers
- C09J175/04—Polyurethanes
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/04—Non-macromolecular additives inorganic
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/06—Non-macromolecular additives organic
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2227—Oxides; Hydroxides of metals of aluminium
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
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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
- C08L2201/00—Properties
- C08L2201/02—Flame or fire retardant/resistant
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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
- C08L2203/00—Applications
- C08L2203/20—Applications use in electrical or conductive gadgets
- C08L2203/206—Applications use in electrical or conductive gadgets use in coating or encapsulating of electronic parts
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Abstract
The invention provides a kind of elastic epoxy fire-proof potting compound, including component A and B component, the component A is prepared by polyurethane modified epoxy resin, epoxy resin, reactive diluent, defoamer, melamine salt powder fire retardant, liquid phosphoric acid esters fire retardant and filling aluminium hydrate；The B component is prepared by curing agent, curing accelerator and pearl filler.The present invention uses the system of low viscosity flexible-epoxy, toughener and curing agent, compounded with TRI N BUTYL PHOSPHATE, epoxy resin environmental protection fire retarding agent, aluminium hydroxide etc., make after epoxy AB components mix viscosity is low can levelling, solidfied material is easily peelable with certain elasticity, and epoxy resin cured product UL94 flame retardant tests reach the ranks of V 0.
Description
Technical field
The invention belongs to casting glue technical field, and in particular to a kind of elastic epoxy fire-proof potting compound and preparation method thereof.
Background technology
With the development of electric industry, to epoxy resin cured product performance requirement also more and more higher, current many electricity
The potting compounds of sub- electric elements require it is fire-retardant, can levelling, the various performances such as flexible, and medium-sized epoxy pouring sealant does not have
Standby fire resistance, and generally viscosity is higher is not easy levelling, and epoxy resin cured product modulus of elasticity is higher, the crisp easy fragmentation of matter.
Epoxy resin cured product is usually rigid material, it is difficult to carries out being effectively peeled off removing glue when electrical equipment is reprocessed, is
It is easily peeled off solidfied material, it is necessary to make the epoxy curing compound there is certain elasticity.And increase elasticity and generally require in epoxy
Add a certain proportion of toughener in casting glue, and common toughener viscosity is high, and due to the needs of fire resistance, accounted in formula
There are the powders such as aluminium hydroxide and the epoxy fire retardant of significant proportion so that epoxy pouring sealant overall viscosity is higher, is not easy levelling.Cause
This, there is provided a kind of low viscosity, can levelling, flexible epoxy fire-proof potting compound be asking for electric industry urgent need to resolve
Topic.
The content of the invention
In view of this, the technical problem to be solved in the present invention is to provide a kind of elastic epoxy fire-proof potting compound and its preparation
Method, elastic epoxy fire-proof potting compound provided by the invention has low viscosity, can levelling and flexible.
The invention provides a kind of elastic epoxy fire-proof potting compound, including component A and B component, the component A is by polyurethane
Modified epoxy, epoxy resin, reactive diluent, defoamer, melamine salt powder fire retardant, the resistance of liquid phosphoric acid esters
Combustion agent and filling aluminium hydrate are prepared；
The B component is prepared by curing agent, curing accelerator and pearl filler.
Preferably, component A is prepared by the raw material of following mass parts：
The polyurethane modified epoxy resin of 80~120 mass parts；
The epoxy resin of 5~10 mass parts；
The reactive diluent of 5~10 mass parts；
The defoamer of 2~4 mass parts；
The liquid phosphoric acid esters fire retardant of 10~20 mass parts；
The melamine salt powder fire retardant of 50~60 mass parts；
The filling aluminium hydrate of 50~80 mass parts；
B component is prepared by the raw material of following mass parts：
The curing agent of 19~39 mass parts；
The curing accelerator of 2~5 mass parts；
The pearl filler of 11~28 mass parts.
Preferably, described polyurethane modified epoxy resin is the base polyurethane prepolymer for use as blocked with epoxide group, and number is divided equally
Son amount is 500~1500, and epoxide number is 0.20~0.4.
Preferably, the epoxy resin is selected from bisphenol-A diglycidyl ether type epoxy resin or Bisphenol F diglycidyl ether
Type epoxy resin, the epoxide equivalent of the epoxy resin is 160~220.
Preferably, the reactive diluent is selected from the diglycidyl ether type active epoxy diluent or difunctionality of single functionality
The diglycidyl ether type active epoxy diluent of degree.
Preferably, the melamine salt powder fire retardant is selected from melamine cyanurate or melamine phosphate.
Preferably, the curing agent is amine curing agent, and Jia Shi color and luster≤3, active hydrogen equivalent weight is 40~100, described solid
Change accelerator and be selected from amino phenols curing accelerator.
Preferably, the filling aluminium hydrate is 800~1250 mesh aluminium hydroxides.
Preferably, the defoamer is selected from the defoamer without organosilicon.
Present invention also offers a kind of preparation method of above-mentioned elastic epoxy fire-proof potting compound, comprise the following steps：
The preparation of component A：
By polyurethane modified epoxy resin, epoxy resin, diluent, liquid phosphoric acid esters fire retardant and defoamer 5~
Mixed 5~10 minutes under conditions of 10rpm；
Add melamine salt powder fire retardant and filling aluminium hydrate mixes under conditions of 20~30rpm
20~30 minutes, then vacuum defoamation 5 minutes, obtain component A；
The preparation of B component：
Curing agent and curing accelerator are mixed 5~10 minutes under conditions of 5~10rpm, add calcium carbonate
Filler, mixed 20~30 minutes under conditions of 20~30rpm, then vacuum defoamation 5 minutes, obtain B component；
The preparation of the component A and B component limits without order.
Compared with prior art, the invention provides a kind of elastic epoxy fire-proof potting compound, including component A and B component, institute
It is fire-retardant by polyurethane modified epoxy resin, epoxy resin, reactive diluent, defoamer, melamine salt powder to state component A
Agent, liquid phosphoric acid esters fire retardant and filling aluminium hydrate are prepared；The B component is by curing agent, curing accelerator and carbon
Sour calcium filler is prepared.The present invention uses the system of low viscosity flexible-epoxy, toughener and curing agent, with tricresyl phosphate just
Butyl ester, epoxy resin environmental protection fire retarding agent, aluminium hydroxide etc. are compounded, make epoxy AB components mix after viscosity it is low can levelling,
Solidfied material is easily peelable with certain elasticity, and epoxy resin cured product UL94 flame retardant tests reach V-0 ranks.
Embodiment
The invention provides a kind of elastic epoxy fire-proof potting compound, including component A and B component, the component A is by polyurethane
Modified epoxy, epoxy resin, reactive diluent, defoamer, melamine salt powder fire retardant, the resistance of liquid phosphoric acid esters
Combustion agent and filling aluminium hydrate are prepared；
The B component is prepared by curing agent, curing accelerator and pearl filler.
Preferably, in elastic epoxy fire-proof potting compound provided by the invention component A by following mass parts raw material prepare and
Into：
The polyurethane modified epoxy resin of 80~120 mass parts；
The epoxy resin of 5~10 mass parts；
The reactive diluent of 5~10 mass parts；
The defoamer of 2~4 mass parts；
The liquid phosphoric acid esters fire retardant of 10~20 mass parts；
The melamine salt powder fire retardant of 50~60 mass parts；
The filling aluminium hydrate of 50~80 mass parts；
B component is prepared by the raw material of following mass parts：
The curing agent of 19~39 mass parts；
The curing accelerator of 2~5 mass parts；
The pearl filler of 11~28 mass parts.
Elastic epoxy fire-proof potting compound provided by the invention is two ingredient elastic epoxy fire-proof potting compound, including component A and B
Component.
Wherein, the component A polyurethane modified epoxy resin, epoxy resin, reactive diluent, defoamer, melamine
Salt powder fire retardant, liquid phosphoric acid esters fire retardant and filling aluminium hydrate are prepared.
The preparing raw material of the component A of elastic epoxy fire-proof potting compound provided by the invention includes polyurethane modified epoxy tree
Fat, the polyurethane modified epoxy resin be with epoxide group block base polyurethane prepolymer for use as, number-average molecular weight be 500~
1500, preferably 800~1200, epoxide number are 0.20~0.4, preferably 0.25~0.35.The present invention changes to the polyurethane
Property epoxy resin source it is not specifically limited, it is general commercially available.Preferably purchased from the good public affairs of send out chemical Limited Liability in Changshu
The model Jeff0211 of department polyurethane modified epoxy resin (epoxide number 0.38 ± 0.02) creates insulation material purchased from Taizhou is permanent
The model 102C-4L of material polyurethane modified epoxy resin (epoxide number 0.22 ± 0.02).Wherein, the polyurethane-modified ring
The addition of oxygen tree fat is 80~120 mass parts, preferably 90~110 mass parts, more preferably 95~105 mass parts.
The preparing raw material of the component A of elastic epoxy fire-proof potting compound provided by the invention also includes epoxy resin, the ring
Oxygen tree fat is selected from bisphenol-A diglycidyl ether type epoxy resin or Bisphenol F diglycidyl ether-type epoxy resin, the asphalt mixtures modified by epoxy resin
The epoxide equivalent of fat is 160~220.The present invention is not specifically limited to the source of the epoxy resin, general commercially available.
Wherein, bisphenol-A diglycidyl ether type epoxy resin is preferably to be purchased from Changchun chemical industry (Jiangsu) Co., Ltd model BE188-
90 epoxy resin, Bisphenol F diglycidyl ether-type epoxy resin are preferably to be purchased from Changchun Artificial Resin Factory Co. Ltd.
Model BF170 epoxy resin.The addition of the epoxy resin is 5~10 mass parts, preferably 6~9 mass parts, more
Preferably 7~8 mass parts.
The preparing raw material of the component A of elastic epoxy fire-proof potting compound provided by the invention also includes reactive diluent, described
Reactive diluent is selected from single functionality or the diglycidyl ether type active epoxy diluent of bifunctionality, the ring of the epoxy resin
Oxygen equivalent is 160~220, preferably 180~200.The present invention is not specifically limited to the source of the reactive diluent, and one
As it is commercially available.In the present invention, the active epoxy diluent is preferably the model for being purchased from New far Chemical Industry Co., Ltd. of Anhui
The bifunctionality epoxy active diluent of single functionality epoxy active diluent or model XY207 for XY748.The activity
The addition of diluent is 5~10 mass parts, preferably 6~9 mass parts, more preferably 7~8 mass parts.
The preparing raw material of the component A of elastic epoxy fire-proof potting compound provided by the invention also includes defoamer, the defoaming
Agent is preferably the defoamer without organosilicon.The present invention is not specifically limited to the source of the defoamer, typically commercially available to be
Can.In the present invention, the defoamer is preferably the model AFCONA2020 for being purchased from Haimen Afcona Chemical Co., Ltd.
Defoamer.The addition of the defoamer is 2~4 mass parts, preferably 2.5~3.5 mass parts, more preferably 2.8~3.2
Mass parts.
It is fire-retardant that the preparing raw material of the component A of elastic epoxy fire-proof potting compound provided by the invention also includes liquid phosphoric acid esters
Agent, the liquid phosphoric acid esters fire retardant is selected to be eliminated instead by POCl3 and phenolic compound or alcohol compound through hydrogen chloride
The fire retardant that should be prepared.The present invention is not specifically limited to the source of the liquid phosphoric acid esters fire retardant, typically commercially available to be
Can.In the present invention, the liquid phosphoric acid esters fire retardant is preferably purchased from the BDP- bisphenol-As pair of Zhejiang Wansheng Co., Ltd.
(diphenyl) phosphate or tri- β of the TCEP-chloroethylphosphate for being purchased from Thousand-Island Lake Long Xiang Chemical Co., Ltd.s.The liquid phosphoric acid
The addition of esters fire retardant is 10~20 mass parts, preferably 12~18 mass parts, more preferably 14~16 mass parts.
The preparing raw material of the component A of elastic epoxy fire-proof potting compound provided by the invention also includes melamine salt powder
Fire retardant, the melamine salt powder fire retardant are selected from melamine cyanurate or melamine phosphate.The present invention is right
The source of the melamine salt powder fire retardant is not specifically limited, general commercially available, in the present invention, described three
Paracyanogen amine salt powder fire retardant is preferably purchased from the model FR106 of Qingdao Hai great Chemical Co., Ltd.s melamine uric acid
Salt, or the melamine cyanurate of the model MP purchased from Laohekou City Gao Bo chemical materials Co., Ltd.The melamine
The addition of salt powder fire retardant is 50~60 mass parts, preferably 52~58 mass parts, more preferably 54~56 mass parts.
The preparing raw material of the component A of elastic epoxy fire-proof potting compound provided by the invention also includes filling aluminium hydrate, institute
It is 800~1250 mesh aluminium hydroxides to state filling aluminium hydrate.Preferably purchased from the type of Foshan dimension Coudé chemical materials Co., Ltd
Number be V101 aluminium hydroxide.The addition of the filling aluminium hydrate is 50~80 mass parts, preferably 60~70 mass parts,
More preferably 62~68 mass parts.
Elastic epoxy fire-proof potting compound provided by the invention also includes B component, and the B component is promoted by curing agent, solidification
Agent and pearl filler are prepared.
The preparing raw material of the B component of elastic epoxy fire-proof potting compound provided by the invention includes curing agent, the curing agent
It is 40~100 selected from amine curing agent, preferably aliphatic cyclic amine or modified aliphatic cyclic amine, Jia Shi color and luster≤3, active hydrogen equivalent weight, preferably
For 50~90.The present invention is not specifically limited to the source of the curing agent, general commercially available.The curing agent is preferably purchased
From the model R2262 of Guangzhou Rui Qi Chemical Co., Ltd.s curing agent (modified aliphatic cyclic amine, active hydrogen equivalent weight 97), or model
R2283 curing agent (aliphatic cyclic amine, active hydrogen equivalent weight 62).The addition of the curing agent is 19~39 mass parts, preferably 22
~30 mass parts, more preferably 24~26 mass parts.
The preparing raw material of the B component of elastic epoxy fire-proof potting compound provided by the invention also includes curing accelerator, described
Curing accelerator is selected from amino phenols curing accelerator.The present invention does not have special limit to the source of the curing accelerator
System, it is general commercially available.In the present invention, the curing accelerator is preferably purchased from Shanghai Du Er Chemical Co., Ltd.s model
DMP-30 curing accelerator [scientific name：2,4,6- (N, N- dimethyl aminomethyl) phenol].The addition of the curing accelerator is 2
~5 mass parts, preferably 3~4 mass parts, more preferably 3.2~3.8 mass parts.
The preparing raw material of the B component of elastic epoxy fire-proof potting compound provided by the invention also includes pearl filler, described
Pearl filler is preferably winnofil, more preferably purchased from the model S-CCR- of Jiande Shuangchao Calcium Industry Co., Ltd.
100 winnofil.The addition of the pearl filler is 11~28 mass parts, preferably 15~25 mass parts, more excellent
Elect 18~22 mass parts as.
Present invention also offers a kind of preparation method of above-mentioned elastic epoxy fire-proof potting compound, comprise the following steps：
The preparation of component A：
By polyurethane modified epoxy resin, epoxy resin, diluent, liquid phosphoric acid esters fire retardant and defoamer 5~
Mixed 5~10 minutes under conditions of 10rpm；
Add melamine salt powder fire retardant and filling aluminium hydrate mixes under conditions of 20~30rpm
20~30 minutes, then vacuum defoamation 5 minutes, obtain component A；
The preparation of B component：
Curing agent and curing accelerator are mixed 5~10 minutes under conditions of 5~10rpm, add calcium carbonate
Filler, mixed 20~30 minutes under conditions of 20~30rpm, then vacuum defoamation 5 minutes, obtain B component；
The preparation of the component A and B component limits without order.
The present invention uses the system of low viscosity flexible-epoxy, toughener and curing agent, with TRI N BUTYL PHOSPHATE, epoxy
Resin environmental protection fire retarding agent, aluminium hydroxide etc. are compounded, make epoxy AB components mix after viscosity it is low can levelling, solidfied material has
Certain elasticity is easily peelable, and epoxy resin cured product UL94 flame retardant tests reach V-0 ranks.
For a further understanding of the present invention, with reference to embodiment to elastic epoxy fire-proof potting compound provided by the invention and
Its preparation method is illustrated, and protection scope of the present invention is not limited by the following examples.
Embodiment 1~6
1st, raw material proportioning：The weighing of raw material is carried out according to the raw material type shown in table 1 and dosage；
2nd, preparation method：
The preparation of component A：
By polyurethane modified epoxy resin, epoxy resin, diluent, liquid phosphoric acid esters fire retardant and defoamer 5~
Mixed 5~10 minutes under conditions of 10rpm；
Add melamine salt powder fire retardant and filling aluminium hydrate mixes under conditions of 20~30rpm
20~30 minutes, then vacuum defoamation 5 minutes, obtain component A；
The preparation of B component：
Curing agent and curing accelerator are mixed 5~10 minutes under conditions of 5~10rpm, add calcium carbonate
Filler, mixed 20~30 minutes under conditions of 20~30rpm, then vacuum defoamation 5 minutes, obtain B component；
The preparation of the component A and B component limits without order.
3rd, method of testing：
Obtained elastic epoxy fire-proof potting compound is subjected to performance test, the results are shown in Table 1：
Levelability test method：The survey of the part mobility of GB/T 13477.6-2002 Test method for building sealants the 6th
It is fixed；
Tensile strength and elongation at break method of testing：GB/T 528 vulcanizes rubber or thermoplastic elastomer tensile stress-strain
Performance measurement；
Shore hardness method of testing:The pocket hardometer penetration hardness test method of the rubber of GB/T 531；
Fire resistance method of testing：The measure Horizontal Bridgman Method and normal beam technique of GBT 2408-2008 Plastics Combustion performances.
The raw material type of 1 embodiment of table 1~6 and dosage and performance measurement result
In table 1, the raw material that example uses non-specifically is pointed out：
Bisphenol A epoxide resin：BE188-90 Changchun chemical industry (Jiangsu) Co., Ltd
Bisphenol F epoxy resin：BF170 Changchun Artificial Resin Factory Co. Ltd.
Defoamer：AFCONA2020 Haimen Afcona Chemical Co., Ltd.
Aluminium hydroxide：V101, Foshan dimension Coudé chemical materials Co., Ltd
Calcium carbonate：Winnofil S-CCR-100, Jiande Shuangchao Calcium Industry Co., Ltd.
Curing accelerator：DMP-30 [scientific names：2,4,6- (N, N- dimethyl aminomethyl) phenol]；Shanghai Du's limited public affairs of ear chemical industry
Department
The raw material particularly pointed out：
Polyurethane modified epoxy resin：
Jeff0211 (epoxide number 0.38 ± 0.02) Changhu Jiafa chemistry Co., Ltd., example 3/4/5；
The permanent wound insulating materials in 102C-4L (epoxide number 0.22 ± 0.02) Taizhou, example 1/2/6
Epoxide diluent：
XY748 (single functionality epoxy active diluent), example 1/2/3；New far Chemical Industry Co., Ltd. of Anhui
XY207 (bifunctionality epoxy active diluent), example 4/5/6；New far Chemical Industry Co., Ltd. of Anhui
Phosphate flame retardant：
Double (diphenyl) phosphates (Zhejiang Wansheng Co., Ltd.) of BDP- bisphenol-As, example 1/2/3；
Tri- β of TCEP-chloroethylphosphate Thousand-Island Lake Long Xiang Chemical Co., Ltd.s, example 4/5/6；
Melamine based flame retardant：
FR106 (melamine cyanurate), Qingdao Hai great Chemical Co., Ltd.s, example 1/2/3；
MP (melamine cyanurate), Laohekou City Gao Bo chemical materials Co., Ltd, example 4/5/6
Amine curing agent：
R2262 (modified aliphatic cyclic amine, active hydrogen equivalent weight 97), example 3/4/5；Guangzhou Rui Qi Chemical Co., Ltd.s；
R2283 (aliphatic cyclic amine, active hydrogen equivalent weight 62), example 1/2/6；Guangzhou Rui Qi Chemical Co., Ltd.s.
Described above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (10)
1. a kind of elastic epoxy fire-proof potting compound, it is characterised in that including component A and B component, the component A is changed by polyurethane
Property epoxy resin, epoxy resin, reactive diluent, defoamer, melamine salt powder fire retardant, liquid phosphoric acid esters are fire-retardant
Agent and filling aluminium hydrate are prepared；
The B component is prepared by curing agent, curing accelerator and pearl filler.
2. elastic epoxy fire-proof potting compound according to claim 1, it is characterised in that
Component A is prepared by the raw material of following mass parts：
The polyurethane modified epoxy resin of 80~120 mass parts；
The epoxy resin of 5~10 mass parts；
The reactive diluent of 5~10 mass parts；
The defoamer of 2~4 mass parts；
The liquid phosphoric acid esters fire retardant of 10~20 mass parts；
The melamine salt powder fire retardant of 50~60 mass parts；
The filling aluminium hydrate of 50~80 mass parts；
B component is prepared by the raw material of following mass parts：
The curing agent of 19~39 mass parts；
The curing accelerator of 2~5 mass parts；
The pearl filler of 11~28 mass parts.
3. elastic epoxy fire-proof potting compound according to claim 1, it is characterised in that described polyurethane modified epoxy tree
Fat is the base polyurethane prepolymer for use as blocked with epoxide group, and number-average molecular weight is 500~1500, and epoxide number is 0.20~0.4.
4. elastic epoxy fire-proof potting compound according to claim 1, it is characterised in that the epoxy resin is selected from bisphenol-A
Diglycidyl ether-type epoxy resin or Bisphenol F diglycidyl ether-type epoxy resin, the epoxide equivalent of the epoxy resin are
160~220.
5. elastic epoxy fire-proof potting compound according to claim 1, it is characterised in that the reactive diluent is selected from single official
The diglycidyl ether type active epoxy diluent of energy degree or the diglycidyl ether type active epoxy diluent of bifunctionality.
6. elastic epoxy fire-proof potting compound according to claim 1, it is characterised in that the melamine salt powder is fire-retardant
Agent is selected from melamine cyanurate or melamine phosphate.
7. elastic epoxy fire-proof potting compound according to claim 1, it is characterised in that the curing agent is amine-type cure
Agent, Jia Shi color and luster≤3, active hydrogen equivalent weight are 40~100, and the curing accelerator is selected from amino phenols curing accelerator.
8. elastic epoxy fire-proof potting compound according to claim 1, it is characterised in that the filling aluminium hydrate is 800
~1250 mesh aluminium hydroxides.
9. elastic epoxy fire-proof potting compound according to claim 1, it is characterised in that the defoamer is selected from without organic
The defoamer of silicon.
10. a kind of preparation method of elastic epoxy fire-proof potting compound as claimed in any one of claims 1 to 9 wherein, its feature exist
In comprising the following steps：
The preparation of component A：
By polyurethane modified epoxy resin, epoxy resin, diluent, liquid phosphoric acid esters fire retardant and defoamer in 5~10rpm
Under conditions of mix 5~10 minutes；
Add melamine salt powder fire retardant and filling aluminium hydrate mix 20 under conditions of 20~30rpm~
30 minutes, then vacuum defoamation 5 minutes, obtain component A；
The preparation of B component：
Curing agent and curing accelerator are mixed 5~10 minutes under conditions of 5~10rpm, add pearl filler,
Mixed 20~30 minutes under conditions of 20~30rpm, then vacuum defoamation 5 minutes, obtain B component；
The preparation of the component A and B component limits without order.
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| CN201710810931.1A CN107418498B (en) | 2017-09-11 | 2017-09-11 | Elastic epoxy flame-retardant pouring sealant and preparation method thereof |
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| CN201710810931.1A CN107418498B (en) | 2017-09-11 | 2017-09-11 | Elastic epoxy flame-retardant pouring sealant and preparation method thereof |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110330926A (en) * | 2019-07-11 | 2019-10-15 | 上海闰龙电子材料有限公司 | A kind of high-bond high thermal conductivity fire retarding epoxide resin adhesive and preparation method thereof |
| CN110577813A (en) * | 2019-10-09 | 2019-12-17 | 上海闰龙电子材料有限公司 | Formula and preparation method of high-flexibility low-halogen epoxy resin pouring sealant |
| CN111087942A (en) * | 2019-12-31 | 2020-05-01 | 道生天合材料科技（上海）有限公司 | Additive composition for pouring sealant and application thereof |
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| CN110577813A (en) * | 2019-10-09 | 2019-12-17 | 上海闰龙电子材料有限公司 | Formula and preparation method of high-flexibility low-halogen epoxy resin pouring sealant |
| CN111675989A (en) * | 2019-12-26 | 2020-09-18 | 上海多迪高分子材料有限公司 | Low-stress epoxy pouring sealant and preparation method and use method thereof |
| CN111087942A (en) * | 2019-12-31 | 2020-05-01 | 道生天合材料科技（上海）有限公司 | Additive composition for pouring sealant and application thereof |
| CN112029461A (en) * | 2020-09-07 | 2020-12-04 | 上海闰龙电子材料有限公司 | Formula of halogen-free epoxy adhesive (structural adhesive) and preparation method thereof |
| CN114181651A (en) * | 2021-12-20 | 2022-03-15 | 杭州之江有机硅化工有限公司 | Elastic easily-detachable epoxy floor glue and preparation method thereof |
| CN114874740A (en) * | 2022-05-06 | 2022-08-09 | 宁波源成新材料科技有限公司 | Polyurethane soft-package battery pouring sealant and preparation method thereof |
| CN115353717A (en) * | 2022-08-25 | 2022-11-18 | 陕西生益科技有限公司 | Resin composition and application thereof |
| CN115353717B (en) * | 2022-08-25 | 2023-11-10 | 陕西生益科技有限公司 | Resin composition and application thereof |
| CN115433532A (en) * | 2022-09-09 | 2022-12-06 | 深圳市安伯斯科技有限公司 | Low-hardness high-toughness two-component epoxy resin pouring sealant and preparation method thereof |
| CN115433532B (en) * | 2022-09-09 | 2023-09-08 | 深圳市安伯斯科技有限公司 | Low-hardness high-toughness double-component epoxy resin pouring sealant and preparation method thereof |
| CN117887214A (en) * | 2023-12-05 | 2024-04-16 | 东莞市力源复合材料有限公司 | Two-component hand lay-up epoxy resin and preparation method thereof |
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