CN109504035A - A kind of fire-retarding epoxy resin composite material cable testing bridge - Google Patents
A kind of fire-retarding epoxy resin composite material cable testing bridge Download PDFInfo
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- CN109504035A CN109504035A CN201811354217.7A CN201811354217A CN109504035A CN 109504035 A CN109504035 A CN 109504035A CN 201811354217 A CN201811354217 A CN 201811354217A CN 109504035 A CN109504035 A CN 109504035A
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- epoxy resin
- composite material
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- resin composite
- cable testing
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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
- C08K9/00—Use of pretreated ingredients
- C08K9/04—Ingredients treated with organic substances
- C08K9/06—Ingredients treated with organic substances with silicon-containing compounds
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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
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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
- C08K3/34—Silicon-containing compounds
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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
- C08K5/00—Use of organic ingredients
- C08K5/02—Halogenated hydrocarbons
- C08K5/03—Halogenated hydrocarbons aromatic, e.g. C6H5-CH2-Cl
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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
- C08K7/00—Use of ingredients characterised by shape
- C08K7/02—Fibres or whiskers
- C08K7/04—Fibres or whiskers inorganic
- C08K7/10—Silicon-containing compounds
- C08K7/12—Asbestos
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
- H02G3/02—Details
- H02G3/04—Protective tubing or conduits, e.g. cable ladders or cable troughs
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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
- 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
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Laying Of Electric Cables Or Lines Outside (AREA)
Abstract
The present invention relates to a kind of fire-retardant epoxy resin composite material cable testing bridges, utilize fiber reinforcement principle, by the way that fire protection flame retarding asbestos fibre is added, optimize the additional proportion of fiber and resin, currently preferred technical solution inorganic filler includes asbestos fibre and expanded vermiculite；And major-minor fire retardant decabromodiphenyl, aluminium hydroxide are further added, significantly improve the mechanical property performance and flame retardant property of cable testing bridge.
Description
Technical field
The invention belongs to electrocomponent technology field more particularly to a kind of heat-insulated epoxy resin composite material cable testing bridges.
Background technique
Cable testing bridge is a kind of product more common in low-voltage distribution apparatus, have kind it is complete, using wide, intensity is big, knot
The features such as structure is light, low cost, construction is simple, wiring are flexible, installation standard, good appearance.According to the material of manufacture cable testing bridge
Steel cable bridge, fireproof glass reinforced plastic cable bridge frame, anticorodal aluminium alloy cable testing bridge, fire-proof cable bridge rack can be divided into.It is right
In cable testing bridge, corrosion-resistant, electrical insulating property and flame retardant property are more demanding.
The prior arts such as CN104455736A, CN202719271A are the simply coating fire prevention on groove profile shell and cover board
Layer does not consider the selection and flame retardant property, insulation performance of layer material of preventing fires.In order to guarantee cable testing bridge with high-tensile strength
While learning performance, flame retardant property is improved, and the present invention provides a kind of improved cable testing bridges, in mechanics and safe handling
It is significantly improved in performance.
Summary of the invention
In order to solve the above technical problems, the present invention provides a kind of heat-insulated epoxy resin composite material cable testing bridges.
The present invention is achieved by the following technical programs.
The present invention provides a kind of heat-insulated epoxy resin composite material cable testing bridges, at copper bar sandblasting and oil removing
Reason, copper bar be fixed in a mold, demoulding, the preparation of room temperature curing process after pouring molding, room temperature curing on a vibration table；Its feature
It is:
The material poured is epoxy resin composite material.
The preparation of the epoxy resin composite material includes that filler is added in the acetone soln containing coupling agent, and stirring is equal
It is even, remove solvent；A certain amount of curing agent is added in epoxy resin and is uniformly mixed, the filler is then added to asphalt mixtures modified by epoxy resin
It is sieved after being uniformly mixed in rouge.The filler includes asbestos fibre, and the dosage of the asbestos fibre is 30phr, with epoxy
Resin quality part is 100phr meter.
The filler further includes vermiculite, dosage 40phr, by epoxy resin mass parts for 100phr in terms of.
The curing agent be triethylene tetramine, dosage 12phr, by epoxy resin mass parts for 100phr in terms of.
The coupling agent is silane coupling agent, such as KH550, KH560, KH570.
The preparation of the epoxy resin composite material further includes that addition fire retardant is uniformly mixed.
Make main flame retardant with decabromodiphenyl, aluminium hydroxide makees auxiliary flame retardant, fills epoxy resin composite material, ten bromines connection
The dosage of benzene is 15phr, and the dosage of aluminium hydroxide is 10phr, by epoxy resin mass parts for 100phr in terms of.
There is a degree of improvement to the modified effect of epoxy resin through the processed filler of silane coupling agent, it can not only
The impact flexibility of epoxy resin is improved, and the viscosity of casting material can be made to reduce, the loading of filler is increased, reduces into
This.This is because silane coupling agent in same molecule have two class chemical groups, therefore it can in inorganic matter -- OH,
The effect of playing coupling can be acted on the long chain in organic matter again, increase the knot between organic matter and its inner inorganic object
With joint efforts, play a part of to enhance and improve its performance.
The impact flexibility of the epoxy resin composite material of one-component filling can not reach practical value, it is therefore desirable to
Asbestos fibre is added on the basis of above-mentioned experiment to be enhanced, and the purpose of application is reached.
In order to further enhance flame retardant property, on the basis of compounded mix modified epoxy, addition main flame retardant and
Auxiliary flame retardant can play good flame retardant effect, reach fire prevention purpose.
According to the technical solution of the present invention, can be improved cable testing bridge mechanical strength and heat-resisting heat-proof quality, in leech
On the basis of stone and epoxy resin are compound, asbestos fibre and fire-retardant meter are further added, actually plays and further enhances power
Learn the effect of performance and flame retardant property；Stability in use and safety are enhanced, the safe operation of low-voltage electrical apparatus is realized.
Specific embodiment
Technical solution of the present invention is described further below, but claimed range is not limited to.
Table 1: the cable testing bridge shock resistance prepared without the compound resin of dosage filler
Unit: kjm-2
| Dosage/phr | 40 | 50 | 60 | 70 |
| Vermiculite | 1.6 | 1.6 | 1.7 | 2.26 |
Expanded vermiculite fills epoxy resin, and when expanded vermiculite dosage is 70phr, the impact strength of composite material is
2.26kj·m-2, reach maximum at this time, subsequent impact strength is begun to decline.Why vermiculite can increase the tough of epoxy resin
Property, it is to be sheet and very closely knit material due to vermiculite, there is biggish intensity and rigidity, is uniformly scattered in single sheet in addition
In epoxy resin-base, surface area is big, has preferable interfacial bonding with epoxy resin, when by external impacts, vermiculite lamella
A large amount of crazings can be caused, while can also preferably absorb impact energy, therefore the impact flexibility of epoxy resin composite material can be improved.
The relationship result of study of heat conductivity and amount of filler shows that the heat conductivity of solidfied material almost increases with amount of filler
Addition direct ratio rises, and certainly, the feature of filler itself plays very big effect to modified effect.The heat conductivity of filler itself is got over
Height, then the heat conductivity of the solidfied material with it is also higher.Opposite, if thermal coefficient, which is added, is less than the thermally conductive of polymer
The filled insulation of coefficient, with the increase of filled insulation dosage, epoxy resin cured product heat conductivity almost increases with amount of filler
The decline of addition direct ratio, the heat conductivity of filler itself is lower, then the heat conductivity of the solidfied material with it is also lower.
The heat insulation of expanded vermiculite is preferable, traces it to its cause: from material, the thermal coefficient very little of expanded vermiculite, only
It is far smaller than the thermal coefficient (0.17~0.50W/ (mK)) of epoxy resin for 0.051~0.07W/ (mK)；On the other hand.
Expanded vermiculite is that lamellar structure is dispersed in resin, and macromolecular chain is through in the tunnel of vermiculite lamella, in limited shape
State, free volume are reduced, thus it is heated when polymer segment movement it is more difficult, limit the transmitting of heat；And this structure table
Area is big, increases the propagation path of heat, is unfavorable for heat transfer, and heat transfer is hindered as " flashboard ".
For heat-insulated epoxy resin composite material, at least two-phase is constituted, and wherein epoxy resin is continuous phase, expands leech
Stone is dispersed phase.When expanded vermiculite content is lower, particle is in isolated state, does not almost have heat insulation；Work as expanded vermiculite
When content is 40 parts, there is a small amount of particle buildup, forms the thermally conductive open circuit in part, heat insulation is unobvious, when expanded vermiculite content reaches
When to 70 parts, there are more particle buildups, almost form thermally conductive open circuit, heat insulation is obvious.Expanded vermiculite and asphalt mixtures modified by epoxy resin at this time
Aliphatic radical private savings are peeling-off, it is clear that dosage should not be further added by, and be further added by the content of expanded vermiculite, be influenced not on heat insulation
Greatly.
Table 2: the influence for the cable testing bridge mechanical property that asbestos fibre dosage prepares composite material
The chopped asbestos fibre of the 30phr crossed through coupling agent treatment is added and 40phr vermiculite, epoxy resin composite material rush
Hit intensity is 4.35kj/m2With pure epoxy resin (1.25kj/m2) compare, nearly three times are increased, there is good use value,
This is because epoxy resin and asbestos fibre are connected by interface in asbestos fibre reinforced epoxy composite material,
Load is passed to asbestos fibre through interface by epoxy resin.
Asbestos fibre is uniformly scattered in epoxy resin, a kind of " gridding " structure is formed, in epoxy resin-base
Unit effectively connect, formed an effective net, so the bearing capacity of epoxy resin composite material enhances；Section
Coarse, crackle is more, and filler and epoxy resin-base interfacial bonding property are preferable, shows to form new surface more, and it is more to absorb impact energy,
Impact strength is good.
Table 3: amount of flame-retardant agent influences the flame retardant property of epoxy resin composite cable tray
Table 3 the result shows that, make main flame retardant with decabromodiphenyl, aluminium hydroxide makees auxiliary flame retardant, and filling epoxy resin is multiple
Condensation material, flame retardant effect significantly improve, and 15phr decabromodiphenyl, which is added, can play good flame retardant effect, have reached fire prevention purpose.
The particular embodiment of the present invention is illustrated above, but protection content of the invention be not only limited to it is above
Embodiment, in technical field of the invention, the usual knowledge of to master, so that it may be carried out within the scope of its technology main idea
Diversified change.
Claims (7)
1. a kind of fire-retarding epoxy resin composite material cable testing bridge is fixed on mould by copper bar sandblasting and oil removal treatment, copper bar
Demoulding, the preparation of room temperature curing process in tool, on a vibration table after pouring molding, room temperature curing；It is characterized by:
The material poured is epoxy resin composite material；The preparation of the epoxy resin composite material include filler is added to containing
It in the acetone soln of coupling agent, stirs evenly, removes solvent；A certain amount of curing agent is added in epoxy resin and is mixed
It is even, then the filler is added to after being uniformly mixed in epoxy resin and is sieved, the filler includes asbestos fibre, the stone
The dosage of cotton fiber be 30phr, by epoxy resin mass parts for 100phr in terms of.
2. fire-retarding epoxy resin composite material cable testing bridge as described in claim 1, it is characterised in that: the filler further includes
Vermiculite, dosage 40phr, by epoxy resin mass parts for 100phr in terms of.
3. fire-retarding epoxy resin composite material cable testing bridge as described in claim 1, it is characterised in that: the curing agent is three
Ethylene tetramine, dosage 12phr, by epoxy resin mass parts for 100phr in terms of.
4. fire-retarding epoxy resin composite material cable testing bridge as described in claim 1, it is characterised in that: the coupling agent is silicon
Alkane coupling agent.
5. fire-retarding epoxy resin composite material cable testing bridge as described in claim 1, it is characterised in that: the silane coupling agent
For KH550, KH560, KH570.
6. fire-retarding epoxy resin composite material cable testing bridge as described in claim 1, it is characterised in that: the epoxy resin is multiple
The preparation of condensation material further includes that addition fire retardant is uniformly mixed.
7. fire-retarding epoxy resin composite material cable testing bridge as claimed in claim 6, it is characterised in that: decided with decabromodiphenyl
Fire retardant, aluminium hydroxide make auxiliary flame retardant, fill epoxy resin composite material, and the dosage of decabromodiphenyl is 15phr, hydroxide
The dosage of aluminium be 10phr, by epoxy resin mass parts for 100phr in terms of.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811354217.7A CN109504035B (en) | 2018-11-14 | 2018-11-14 | Flame-retardant epoxy resin composite material cable bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811354217.7A CN109504035B (en) | 2018-11-14 | 2018-11-14 | Flame-retardant epoxy resin composite material cable bridge |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109504035A true CN109504035A (en) | 2019-03-22 |
| CN109504035B CN109504035B (en) | 2021-04-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811354217.7A Active CN109504035B (en) | 2018-11-14 | 2018-11-14 | Flame-retardant epoxy resin composite material cable bridge |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201284885Y (en) * | 2008-10-24 | 2009-08-05 | 吴福元 | Compound epoxy resin cable bridge rack |
| CN101985991A (en) * | 2010-10-29 | 2011-03-16 | 徐怀书 | Productive technology of composite epoxy resin compound type cable bridge |
| CN104600637A (en) * | 2015-02-05 | 2015-05-06 | 安徽力高电气有限公司 | Cable bridge with composite epoxy resin |
| WO2017111115A1 (en) * | 2015-12-24 | 2017-06-29 | 株式会社カネカ | Resin composition, semi-cured heat transfer film using same, circuit board and adhesive sheet |
-
2018
- 2018-11-14 CN CN201811354217.7A patent/CN109504035B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201284885Y (en) * | 2008-10-24 | 2009-08-05 | 吴福元 | Compound epoxy resin cable bridge rack |
| CN101985991A (en) * | 2010-10-29 | 2011-03-16 | 徐怀书 | Productive technology of composite epoxy resin compound type cable bridge |
| CN104600637A (en) * | 2015-02-05 | 2015-05-06 | 安徽力高电气有限公司 | Cable bridge with composite epoxy resin |
| WO2017111115A1 (en) * | 2015-12-24 | 2017-06-29 | 株式会社カネカ | Resin composition, semi-cured heat transfer film using same, circuit board and adhesive sheet |
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| Publication number | Publication date |
|---|---|
| CN109504035B (en) | 2021-04-13 |
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