CN110628160A - High-flame-retardancy DCPC composite material and application thereof - Google Patents
High-flame-retardancy DCPC composite material and application thereof Download PDFInfo
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- CN110628160A CN110628160A CN201911044098.XA CN201911044098A CN110628160A CN 110628160 A CN110628160 A CN 110628160A CN 201911044098 A CN201911044098 A CN 201911044098A CN 110628160 A CN110628160 A CN 110628160A
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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
- C08K7/14—Glass
Abstract
The invention belongs to the field of composite materials, and discloses a high-flame-retardancy DCPC composite material and application thereof. The high-flame-retardancy DCPC composite material is prepared by mixing a material A and a material B according to the mass ratio of 0.6-1.6, wherein the material A comprises the following components in parts by weight: 82-93 parts of DCPD, 1-6 parts of catalyst, 0.3-4 parts of stabilizer and 1-10 parts of additive; the material B comprises the following components in parts by weight: 82-93 parts of DCPD, 2-4 parts of an activator and 9-12 parts of a regulator. And mixing the material A and the material B according to the mass ratio, then filling the mixture into a mold, curing and shaping the mixture, and demolding the solidified mixture to obtain the internal module retainer of the vehicle power battery. The DCPD composite material vehicle power battery internal module retainer provided by the invention has excellent performances of heat resistance, acid and alkali resistance, wear resistance, light weight and the like, and has good insulativity and flame retardance and low cost.
Description
Technical Field
The invention belongs to the field of composite materials, and particularly relates to a high-flame-retardancy DCPC composite material and application thereof.
Background
With the increasing global energy crisis and environmental pollution, people are forced to take new measures for the development of the automobile industry, and electric automobiles are a world-recognized solution. The power battery box of the electric automobile is a key part of the electric automobile as a power source carried by the electric automobile, and the quality of the performance of the power battery box can have great influence on the application prospect of the electric automobile. After years of development, the types of the existing power batteries for the vehicles are very many, different requirements are also provided for the components of the power batteries for the vehicles, and the internal module retainer of the power batteries for the vehicles is mainly made of PP plastic at first, so that the power batteries for the vehicles have the advantages of light weight, low cost and poor strength, thermal conductivity and flame retardant property. With the popularization of lithium ion power batteries and the great improvement of specific energy of the batteries, the module holder in the battery is required to have good heat dissipation, strength, insulativity, corrosion resistance and flame retardance, and the material selection begins to develop towards metal materials, mainly by using 3003 aluminum alloy. At present, the lithium ion battery of the electric automobile generally uses aluminum alloy to manufacture the internal module retainer and the whole battery box shell, but the metal material still has obvious defects, the production cost is higher, the weight is heavier, and the strength and the fatigue resistance are insufficient.
DCPD (Dicyclopentadiene) is short for C10H12The molecular weight is 132, the melting point is 32 ℃, the boiling point is 170 ℃, and the liquid is colorless or light yellow liquid at normal temperature. DCPD has excellent physical properties, is an excellent engineering plastic, and has been widely used in the automobile industry to produce automobile bumpers, spoilers, instrument panel boxes, trunk covers, lamp holders, and the like. However, no one has applied this material to the inner module holder of the power battery for vehicles.
Disclosure of Invention
Aiming at the defects and shortcomings of the prior art, the invention mainly aims to provide a DCPC composite material with high flame retardance.
The invention also aims to provide application of the high-flame-retardancy DCPC composite material in preparation of an internal module retainer of a power battery for a vehicle.
The purpose of the invention is realized by the following technical scheme:
a high-flame-retardancy DCPC composite material is prepared by mixing a material A and a material B according to the mass ratio of A to B being 0.6-1.6,
the material A comprises the following components in parts by weight: 82-93 parts of DCPD, 1-6 parts of catalyst, 0.3-4 parts of stabilizer and 1-10 parts of additive;
the material B comprises the following components in parts by weight: 82-93 parts of DCPD, 2-4 parts of an activating agent and 9-12 parts of a regulator.
Further, the high-flame-retardancy DCPC composite material is prepared by mixing a material A and a material B according to the mass ratio of A to B being 0.8-1.3.
Furthermore, the high-flame-retardancy DCPC composite material is prepared by mixing the material A and the material B according to the mass ratio of A to B to l.
Further, the catalyst is a tungsten catalyst or lithium manganite.
Further, the tungsten-based catalyst is selected from tungsten hexachloride or elemental tungsten.
Further, the stabilizer is an alkene soil stabilizer.
Further, the additive is at least one of glass fiber, carbon fiber and aramid fiber.
Further, the activating agent is at least one of alkyl aluminum, toluene and 2, 6-di-tert-butyl-4-methylphenol.
Further, the regulator is at least one of benzophenone and petroleum ether.
The application of the high-flame-retardancy DCPC composite material in preparing the module retainer in the power battery for the vehicle comprises the following application steps:
and mixing the material A and the material B according to the mass ratio, then filling the mixture into a mold of the internal module retainer of the vehicle power battery, curing and shaping the mixture, and demolding the solidified mixture to obtain the internal module retainer of the vehicle power battery.
Further, the temperature of the mixed material of the material A and the material B is 20 +/-2 ℃, and the mixing time is 5 +/-2 seconds.
Further, the temperature of the female mold filled into the mold is 70 +/-3 ℃, the temperature of the male mold is 50 +/-3 ℃, the injection pressure of the material is 50 +/-5 bar, and the mold filling time is 10 +/-2 seconds.
Further, the curing and setting means that the pressure is kept for 27 seconds after the mold is filled, so that the part is cured and set.
Further, burrs and the like present in the article are further modified after the demolding.
The principle of the invention is as follows: A. under the catalysis of a catalyst, the DCPD in the material B leads the raw materials to have polymerization reaction, and polydicyclopentadiene is obtained through ring-opening metathesis polymerization; additives such as glass fiber, carbon fiber and the like are added to change the performance of the polymer material and increase the strength and the flame retardance of the material; adding stabilizer to maintain chemical balance, reduce surface tension of the product and prevent decomposition and aging of the polymer product; adding an activator to increase the activation of the reaction substance and promote the polymerization or polycondensation among molecules in the high molecular polymer; the regulator is added to control the relative molecular mass in the polymerization reaction and prevent the polymer from gelling. The invention mixes the material A and the material B according to the proportion: one is that the respective pre-proportioning mixing process of the A, B materials is also an important step of the finished product with excellent final performance from the viewpoint of material performance; and secondly, from the aspects of process and equipment, the quality proportion can be controlled more easily and accurately by directly adding the premixed A, B material, and the mass production is facilitated.
Compared with the prior art, the invention has the following advantages and beneficial effects:
the DCPD composite material vehicle power battery internal module retainer provided by the invention has excellent performances of heat resistance, acid and alkali resistance, wear resistance, light weight and the like, and has good insulativity and flame retardance and low cost.
Detailed Description
The present invention will be described in further detail with reference to examples, but the embodiments of the present invention are not limited thereto.
Example 1
The internal module retainer of the power battery for the vehicle made of the DCPD composite material comprises the following raw materials in parts by weight:
| material A | DCPD 83 parts | 4 parts of tungsten hexachloride | 2 portions of alkene soil stabilizer | 4 portions of glass fiber |
| B material | DCPD 83 parts | 2 parts of triethyl aluminum | 9 portions of benzophenone |
Preparing an internal module retainer of the power battery for the DCPD composite material vehicle:
1, mixing materials: mixing the materials A and B according to the mass ratio, controlling the material temperature to be 20 +/-2 ℃, controlling the flow ratio of the materials A and B to be 1:1, and mixing for 5 +/-2 seconds.
2, filling a mold: controlling and maintaining the temperature of a female die in the die at 70 +/-3 ℃, the temperature of a male die at 50 +/-3 ℃, maintaining the injection pressure of the material at 50 +/-5 bar during die filling, and maintaining the die filling time at 10 +/-2 seconds.
3, curing and shaping: and after filling, the mold is kept for 27 seconds for continuous stable pressure so as to cure and set the part.
4, demolding: the pressure is relieved, the mold is separated and the article is ejected from the mold.
5, trimming: the burrs and the like present in the article are modified.
The performance test method and the result of the internal module retainer of the power battery for the DCPD composite material vehicle are as follows:
example 2
The internal module retainer of the power battery for the vehicle made of the DCPD composite material comprises the following raw materials in parts by weight:
| material A | 86 portions of DCPD | 5 parts of simple substance tungsten | 2 portions of alkene soil stabilizer | 5 parts of glass fiber |
| B material | 86 portions of DCPD | 3 parts of triethyl aluminum | 10 portions of benzophenone |
Preparing an internal module retainer of the power battery for the DCPD composite material vehicle:
1, mixing materials: mixing the materials A and B according to the mass ratio, controlling the material temperature to be 20 +/-2 ℃, controlling the flow ratio of the materials A and B to be 1:1.2, and mixing for 5 +/-2 seconds.
2, filling a mold: controlling and maintaining the temperature of a female die in the die at 70 +/-3 ℃, the temperature of a male die at 50 +/-3 ℃, maintaining the injection pressure of the material at 50 +/-5 bar during die filling, and maintaining the die filling time at 10 +/-2 seconds.
3, curing and shaping: and after filling, the mold is kept for 27 seconds for continuous stable pressure so as to cure and set the part.
4, demolding: the pressure is relieved, the mold is separated and the article is ejected from the mold.
5, trimming: the burrs and the like present in the article are modified.
The performance test method and the result of the internal module retainer of the power battery for the DCPD composite material vehicle are as follows:
example 3
The internal module retainer of the power battery for the vehicle made of the DCPD composite material comprises the following raw materials in parts by weight:
| material A | 92 portions of DCPD | 5 parts of lithium manganite | 1 part of alkene soil stabilizer | Glass fiber 7 parts |
| B material | 92 portions of DCPD | Triethyl aluminum 4 parts | 9 portions of benzophenone |
Preparing an internal module retainer of the power battery for the DCPD composite material vehicle:
1, mixing materials: mixing the materials A and B according to the mass ratio, controlling the material temperature to be 20 +/-2 ℃, controlling the flow ratio of the materials A and B to be 1:1.1, and mixing for 5 +/-2 seconds.
2, filling a mold: controlling and maintaining the temperature of a female die in the die at 70 +/-3 ℃, the temperature of a male die at 50 +/-3 ℃, maintaining the injection pressure of the material at 50 +/-5 bar during die filling, and maintaining the die filling time at 10 +/-2 seconds.
3, curing and shaping: and after filling, the mold is kept for 27 seconds for continuous stable pressure so as to cure and set the part.
4, demolding: the pressure is relieved, the mold is separated and the article is ejected from the mold.
5, trimming: the burrs and the like present in the article are modified.
The performance test method and the result of the internal module retainer of the power battery for the DCPD composite material vehicle are as follows:
the above embodiments are preferred embodiments of the present invention, but the present invention is not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be construed as equivalents thereof, and all such changes, modifications, substitutions, combinations, and simplifications are intended to be included in the scope of the present invention.
Claims (10)
1. A DCPC composite material with high flame retardance is characterized in that: the material A and the material B are mixed according to the mass ratio of A to B being 0.6-1.6, wherein,
the material A comprises the following components in parts by weight: 82-93 parts of DCPD, 1-6 parts of catalyst, 0.3-4 parts of stabilizer and 1-10 parts of additive;
the material B comprises the following components in parts by weight: 82-93 parts of DCPD, 2-4 parts of an activating agent and 9-12 parts of a regulator.
2. The high flame retardant DCPC composite according to claim 1, wherein: the high-flame-retardancy DCPC composite material is prepared by mixing a material A and a material B according to the mass ratio of 0.8-1.3.
3. The high flame retardant DCPC composite according to claim 1, wherein: the high-flame-retardancy DCPC composite material is prepared by mixing a material A and a material B according to the mass ratio of A to B to l.
4. The high flame retardant DCPC composite according to claim 1, wherein: the catalyst is a tungsten catalyst or lithium manganite; the stabilizing agent is an alkene soil stabilizing agent; the additive is at least one of glass fiber, carbon fiber and aramid fiber; the activating agent is at least one of alkyl aluminum, toluene and 2, 6-di-tert-butyl-4-methylphenol; the regulator is at least one of benzophenone and petroleum ether.
5. The high flame retardant DCPC composite according to claim 4, wherein: the tungsten catalyst is selected from tungsten hexachloride or simple substance tungsten.
6. The application of the high flame retardant DCPC composite material of any one of claims 1 to 5 in the preparation of an internal module retainer of a power battery for a vehicle is characterized by comprising the following application steps:
and mixing the material A and the material B according to the mass ratio, then filling the mixture into a mold of the internal module retainer of the vehicle power battery, curing and shaping the mixture, and demolding the solidified mixture to obtain the internal module retainer of the vehicle power battery.
7. The use of the high flame retardant DCPC composite material according to claim 6 in the preparation of module holders inside power batteries for vehicles is characterized in that: the temperature of the mixed material of the material A and the material B is 20 +/-2 ℃, and the mixing time is 5 +/-2 seconds.
8. The use of the high flame retardant DCPC composite material according to claim 6 in the preparation of module holders inside power batteries for vehicles is characterized in that: the temperature of the female mold filled into the mold is 70 +/-3 ℃, the temperature of the male mold is 50 +/-3 ℃, the injection pressure of the material is 50 +/-5 bar, and the mold filling time is 10 +/-2 seconds.
9. The use of the high flame retardant DCPC composite material according to claim 6 in the preparation of module holders inside power batteries for vehicles is characterized in that: the curing and setting are to keep a stable pressure for 27 seconds after filling the mold so as to cure and set the part.
10. The use of the high flame retardant DCPC composite material according to claim 6 in the preparation of module holders inside power batteries for vehicles is characterized in that: after demolding, burrs and the like existing in the workpiece are further modified.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201911044098.XA CN110628160A (en) | 2019-10-30 | 2019-10-30 | High-flame-retardancy DCPC composite material and application thereof |
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| CN201911044098.XA CN110628160A (en) | 2019-10-30 | 2019-10-30 | High-flame-retardancy DCPC composite material and application thereof |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4069376A (en) * | 1975-04-17 | 1978-01-17 | The B. F. Goodrich Company | Process for substantially gel-free polymerization of norbornene with dicyclopentadiene |
| EP2128196A1 (en) * | 2007-11-21 | 2009-12-02 | Zeon Corporation | Polymer composition and use thereof |
| CN106398075A (en) * | 2016-08-31 | 2017-02-15 | 湖南华强电气股份有限公司 | DCPD composite material for vehicle air-conditioner base |
| CN107226986A (en) * | 2017-06-06 | 2017-10-03 | 福建省泽弘智能机械有限公司 | The preparation method of DCPD composite television rear covers |
-
2019
- 2019-10-30 CN CN201911044098.XA patent/CN110628160A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4069376A (en) * | 1975-04-17 | 1978-01-17 | The B. F. Goodrich Company | Process for substantially gel-free polymerization of norbornene with dicyclopentadiene |
| EP2128196A1 (en) * | 2007-11-21 | 2009-12-02 | Zeon Corporation | Polymer composition and use thereof |
| CN106398075A (en) * | 2016-08-31 | 2017-02-15 | 湖南华强电气股份有限公司 | DCPD composite material for vehicle air-conditioner base |
| CN107226986A (en) * | 2017-06-06 | 2017-10-03 | 福建省泽弘智能机械有限公司 | The preparation method of DCPD composite television rear covers |
Non-Patent Citations (2)
| Title |
|---|
| ABADIE, MJ等: "New catalysts for linear polydicyclopentadiene synthesis", 《EUROPEAN POLYMER JOURNAL》 * |
| 潘炳力等: "《先进高分子材料摩擦学》", 31 October 2016, 北京：国防工业出版社 * |
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Application publication date: 20191231 |