阅读说明：本技术 一种碳基复合材料及其制备方法和应用 (A kind of C-base composte material and its preparation method and application ) 是由 邱一民 卜志华 于 2019-09-10 设计创作，主要内容包括：本发明公开了一种碳基复合材料及其制备方法和应用,属于汽车防火材料技术领域,包括碳基织物和包覆在碳基织物单面或者双面的阻燃胶层,所述阻燃胶层中含有质量分数为3～7％的十溴二苯乙烷,其余为液态硅胶；本发明在碳基织物上包覆阻燃胶层,制备的复合材料具有防震、防自燃、防火、防爆、隔热、防水性能,且本发明阻燃胶层是环境友好型材料,能够降低对人体的伤害,提高使用舒适度,可有效地解决汽车电池包容易燃烧的问题,降低及汽车自燃、爆炸的发生率,灭火方便。(The invention discloses a kind of C-base composte materials and its preparation method and application, belong to automobile fireproof field of material technology, including carbon-based fabric and it is coated on carbon-based single-sided fabric or two-sided fire-retardant glue-line, the decabromodiphenylethane for being 3~7% containing mass fraction in the fire-retardant glue-line, remaining is liquid-state silicon gel；The present invention coats fire-retardant glue-line on carbon-based fabric, the composite material of preparation has shockproof, anti-spontaneous combustion, fire prevention, explosion-proof, heat-insulated, waterproof performance, and the fire-retardant glue-line of the present invention is environmentally friendly material, it can reduce the injury to human body, improve usage comfort, automobile batteries can be efficiently solved and contain incendive problem, reduce and the incidence of self-burning of vehicle, explosion, fire extinguishing are convenient.)

1. a kind of C-base composte material, which is characterized in that including carbon-based fabric and be coated on carbon-based single-sided fabric or two-sided Fire-retardant glue-line, the decabromodiphenylethane for being 3~7% containing mass fraction in the fire-retardant glue-line, remaining is liquid-state silicon gel.

2. C-base composte material according to claim 1, which is characterized in that be containing mass fraction in the fire-retardant glue-line 5% decabromodiphenylethane, remaining is liquid-state silicon gel.

3. the preparation method of C-base composte material according to claim 1 or 2, which comprises the following steps:

Prepare carbon-based fabric；Decabromodiphenylethane is added to liquid-state silicon gel to be uniformly mixed, fire-retardant glue-line is made；Fire-retardant glue-line is adopted With scrape, apply, spray, hot paste or machine pressure technique are coated on carbon-based single-sided fabric or two-sided, C-base composte material is made.

4. the preparation method of C-base composte material according to claim 3, which is characterized in that using the hot pressing of machine pressure technique Temperature is 40 DEG C, intensity of pressure 10kg/m²。

5. the preparation method of C-base composte material according to claim 3, which is characterized in that the carbon-based fabric is to pass through Following steps are made:

Carbon fibre precursor is woven into carbon fibre precursor fabric；By the carbon fibre precursor fabric successively by padding at drying Reason, pre-oxidation treatment, anaerobic carbonization, anaerobic high temperature graphitization are prepared into carbon-based fabric.

6. the preparation method of C-base composte material according to claim 5, which is characterized in that the drying and processing that pads is The carbon fibre precursor fabric pad drying and processing by phosphate solution, 90~120 DEG C of drying temperature, duration 2~ 3min, the phosphate solution are ammonium phosphate and ammonium dihydrogen phosphate mixed aqueous solution, and the ammonium phosphate and the biphosphate Ammonium mass ratio is 2~5:10, and the ammonium phosphate and ammonium dihydrogen phosphate total mass concentration are 1%~10%.

7. the preparation method of C-base composte material according to claim 5, which is characterized in that the pre-oxidation treatment temperature It is 200~450 DEG C.

8. the preparation method of C-base composte material according to claim 5, which is characterized in that the anaerobic carbonization process is Anaerobic low-temperature carbonization, 8~12min of Shi Changwei will be carried out at 700 DEG C~900 DEG C of carbon fibre precursor fabric of pre-oxidation treatment；It will The carbon-based precursor fabric of low-temperature carbonization carries out anaerobic high temperature cabonization, 3~5min of Shi Changwei at 1000 DEG C~2000 DEG C.

9. the preparation method of C-base composte material according to claim 5, which is characterized in that the anaerobic high temperature graphitization Process is that the carbon-based precursor fabric of anaerobic carbonization is carried out to anaerobic high temperature graphitization at 2000 DEG C~3000 DEG C, Shi Changwei 5~ 20s。

10. application of the C-base composte material according to claim 1 in terms of automobile batteries packet.

Technical field

The invention belongs to automobile fireproof field of material technology, and in particular to a kind of C-base composte material and preparation method thereof and Using.

Background technique

The raising of the consciousness such as progress, new energy, the environmental protection of science and technology promotes electric car constantly to rise, relative to conventional gasoline For machine drives automobile, the advantages such as electric car has zero-emission, energy utilization rate is high, structure is simple, noise is small, but due to It uses battery and electric machine controller, and battery or circuit damage are had in use process leads to the wind of electric car burning Danger.

The common cause of general electric car burning has the following:

(1) collision burning；When electric car is collided or overturned due to traffic accident, since battery is by very big Impact force may be squeezed, the damage such as puncture, since cell internal pressure is excessively high, if battery itself has design defect, In In the case that this is extreme, explosion-proof valve fails effectively to play a role, and will burn, explosion！Especially lithium ion battery is negative Pole material, once there is high possibility that vigorous oxidation even combustion explosion occurs because battery case damage is contacted with air.Cause This, electric car, especially lithium electric car, battery pack, which don't fail to design, to be least easy to meet with the place of sharp impacts, and All kinds of safeguard measures such as shockproof must be taken as far as possible, prevent battery pack in accident, directly by violent shock and extruding.

(2) fire occurs when paddling；When automobile encounter heavy rain or other paddle situation when, wiring or motor between battery Control system may can cause short circuit due to the erosion of water or steam, cause to leak electricity.Once short-circuit, battery temperature is fast A possibility that speed increases, and sets off an explosion or burns is just very big, so making sure waterproof.

(3) spontaneous combustion；Spontaneous combustion is most common, and is reported at most, is put the most intractable in face of client and vehicle enterprise The problem of worry, and hinder the maximum bottleneck of Development of Electric Vehicles.Its reason is more for the opposite collision burning of spontaneous combustion, mainly It is divided into following reason: is 1. impacted, 2. or for a long time jolt, 3. overcharge, 4. water inlet etc. causes micro- hidden danger (poor contact, disconnected Road leads to hot-spot, diaphragm puncture) caused by spontaneous combustion.Automobile is during traveling due to being constantly in high power high voltage The working morphology of electricity consumption works as parking so micro- hidden danger such as battery micro-short circuit, diaphragm puncture is caused to be difficult to be recognized by the system out Afterwards, automobile no longer electricity consumption power consumption causes short circuit or site of puncture electric current to become larger, and heat constantly gathers, to cause electricity Chi Bao burning then will lead to battery pack explosion when excess heat cannot distribute in time.

Battery pack burning, sees from outside and belongs to anoxycausis, can also burn even if battery pack is very closed.Because of the sun of battery Pole can produce oxygen, once so vehicle fire, without good fire suppression measures, foam annihilator can not put out a fire at all, it can only Cooled down fire extinguishing by water, but since battery pack seals, water is difficult to spray into, so as common electric vehicle fire, greatly Family entire automobile can only turn to dust and ashes soon, and fire extinguishing, which can only play isolation fire source, prevents it from other automobiles and object being caused to fire It burns.

Carefully study the above several points can find burning be nearly all it is related to the performance of battery pack, battery pack should accomplish to prevent (outsourcing of foam aluminum cell) is hit, accomplishes shockproof, waterproof, insulation, fire-retardant, heat-insulated again, while also to accomplish to melt under ultrahigh-temperature, The interior packet of characteristics such as ventilative (preventing from exploding, fire extinguishing can intake).In addition to this, automobile interior decoration should also use flame-retarded technology, than The place of such as all plastics will do flame retardant treatment using flame retardant plastics, cloth, timber, filler one kind.Especially and battery Similar sound-proof material is wrapped preferably with (according to investigations, many automobiles do not have with shockproof, waterproof, fire-retardant, heat-insulated, sound insulation sound insulating pad There is sound-proof material/pad, some brands are using the glass silk flosssilk wadding/rock wool harmful to lung, some brands are even using to human body Very harmful and extremely incendive pitch/rubber), it is not able to satisfy requirement.

Summary of the invention

It is frequently caught fire based on existing battery pack, influences the problem of automobile and other related industries ecology, the present invention provides A kind of C-base composte material and preparation method thereof, is fabricated to a kind of novel porous materials on the basis of carbon-based, make it have it is shockproof, It is anti-spontaneous combustion, waterproof, insulation, fire prevention, heat-insulated, can melt under ultrahigh-temperature, the characteristics such as radiating explosion-proof of breathing freely, with reach reduction and automobile from The incidence of combustion, explosion, convenient effect of putting out a fire.

The first purpose of the invention is to provide a kind of C-base composte material, including carbon-based fabric and it is coated on carbon-based fabric Single side or two-sided fire-retardant glue-line, the decabromodiphenylethane for being 3~7% containing mass fraction in the fire-retardant glue-line, remaining For liquid-state silicon gel.

Preferably, the decabromodiphenylethane for being 5% containing mass fraction in the fire-retardant glue-line, remaining is liquid-state silicon gel.

A second object of the present invention is to provide the preparation methods of above-mentioned C-base composte material, comprising the following steps:

Carbon-based fabric and fire-retardant glue-line are prepared respectively, and the use of fire-retardant glue-line is scraped, is applied, is sprayed, hot paste or machine pressure technique cladding In carbon-based single-sided fabric or two-sided.

Preferably, use the hot pressing temperature of machine pressure technique for 40 DEG C, intensity of pressure 10kg/m²。

Preferably, the carbon-based fabric is through the following steps that be made:

Carbon fibre precursor is woven into carbon fibre precursor fabric；By the carbon fibre precursor fabric successively by padding drying Processing, pre-oxidation treatment, anaerobic carbonization, anaerobic high temperature graphitization are prepared into carbon-based fabric.

Preferably, the carbon fibre precursor is by by polyacrylonitrile filament, the short silk of polyacrylonitrile, viscose filament yarn or viscose glue Short silk twisting spinning is made.

Preferably, the drying and processing that pads is to carry out the carbon fibre precursor fabric to pad baking by phosphate solution Dry-cure, 90~120 DEG C of drying temperature, 2~3min of duration, the phosphate solution is ammonium phosphate and ammonium dihydrogen phosphate mixing water Solution, and the ammonium phosphate and the ammonium dihydrogen phosphate mass ratio are 2~5:10, the ammonium phosphate and ammonium dihydrogen phosphate gross mass Concentration is 1%~10%.

Preferably, the pre-oxidation treatment temperature is 200~450 DEG C.

Preferably, the anaerobic carbonization process be by 700 DEG C~900 DEG C of carbon fibre precursor fabric of pre-oxidation treatment into Row anaerobic low-temperature carbonization, 8~12min of Shi Changwei；The carbon-based precursor fabric of low-temperature carbonization is subjected to nothing at 1000 DEG C~2000 DEG C Oxygen high temperature cabonization, 3~5min of Shi Changwei.

Preferably, the anaerobic high temperature graphitization process is by the carbon-based precursor fabric of anaerobic carbonization 2000 DEG C~3000 Anaerobic high temperature graphitization, 5~20s of Shi Changwei are carried out at DEG C.

Third object of the present invention is to provide application of the above-mentioned C-base composte material in terms of automobile batteries packet.

Compared with prior art, the present invention has the following advantages:

The present invention coats fire-retardant glue-line on carbon-based fabric, and the composite material of preparation has shockproof, anti-spontaneous combustion, fire prevention, prevents Quick-fried, heat-insulated, waterproof performance, and the fire-retardant glue-line of the present invention is environmentally friendly material, can reduce the injury to human body, raising makes With comfort level, the incidence that automobile batteries contains incendive problem, reduction and self-burning of vehicle, explosion can be efficiently solved, is gone out Fire is convenient.

Detailed description of the invention

Fig. 1 is 1 carbon fibre precursor fabric face layer conductive structure schematic diagram of embodiment；

Fig. 2 is the carbon-based fabric optics picture schematic diagram of embodiment 1；

Fig. 3 is C-base composte material structural schematic diagram made from embodiment 1.

Description of symbols:

1, warp B, 2, shade, 3, gap, 4, warp A, 5, weft A, 6, weft B, 7, fire-retardant glue-line, 8, carbon-based fabric.

Specific embodiment

In order to enable those skilled in the art to more fully understand, technical solution of the present invention is practiced, below with reference to specific The invention will be further described for embodiment and attached drawing, but illustrated embodiment is not as a limitation of the invention.