CN102490375A - Resin transfer molding device applicable to thermoplastic resin composite materials and application thereof - Google Patents
Resin transfer molding device applicable to thermoplastic resin composite materials and application thereof Download PDFInfo
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- CN102490375A CN102490375A CN2011104120066A CN201110412006A CN102490375A CN 102490375 A CN102490375 A CN 102490375A CN 2011104120066 A CN2011104120066 A CN 2011104120066A CN 201110412006 A CN201110412006 A CN 201110412006A CN 102490375 A CN102490375 A CN 102490375A
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Abstract
Provided is a resin transfer molding device applicable to thermoplastic resin composite materials. The resin transfer molding device comprises an agitated reactor and a glue injection pipe, wherein the agitated reactor comprises an agitated reactor body, an agitated reactor cover, a stirring device and a heating device. The agitated reactor cover is connected with the upper position of the agitated reactor in a sealing mode, a feeding port, a glue discharge port, a temperature measurement port, a shielding gas inlet and a shielding gas outlet are arranged on the agitated reactor cover, and the glue injection pipe is connected with the glue discharge port of the agitated reactor cover. The resin transfer molding device improves the traditional thermosetting resin transfer molding device, solves the problem that a thermoplastic composite material is large in viscosity and not easy to inject and infiltrate, and is applicable to preparation of the thermoplastic resin composite materials. By means of the resin transfer molding device, a large-size thermoplastic resin material prepared part is manufactured, and the manufactured part is excellent in mechanical property, can be recycled, and has wide market prospects.
Description
Technical field
The present invention relates to the composite material forming apparatus field, relate in particular to a kind of thermoplas tic resin composite's of being applicable to resin transfer moulding equipment and application thereof.
Background technology
Resin transfer moulding (RTM) is a kind of modal composite liquid condition shaping technology, is usually used in preparing same with thermosetting compound material.Resin transfer molding (RTM) process is meant in the die cavity of mould, to place in advance and overlays material, reinforcing material etc.; Behind the mold closing; The resin compound of the uniform temperature for preparing is injected into to make it the mold cavity to soak under certain pressure from the hole for injecting glue that is arranged at the appropriate location and overlays material, curing then, the demoulding and obtain a kind of moulding process of goods.
At present, resin transfer molding (RTM) process is one of the most active field of the work that conducted a research both at home and abroad in recent years.Resin transfer moulding has lower tool expense and short advantages such as lead time, has been widely used in the manufacturing of composite structure part.
Thermoplas tic resin composite's mechanical property is excellent, and recyclable utilization has wide market application prospect.But prior resin transfer modling (RTM) technology can't be applicable to thermoplas tic resin composite's preparation moulding.And thermoplastic composite is because its structural reason, and thermoplas tic resin composite's melt viscosity is very big usually, is unfavorable for soaking into fortifying fibre.
Therefore, this area presses for a kind of resin transfer moulding equipment that can be applicable to the thermoplas tic resin composite of research and development.
Summary of the invention
The object of the invention is to provide a kind of thermoplas tic resin composite's of being applicable to resin transfer moulding equipment.This equipment mainly comprises the injecting glue pipeline that thermoplastic resin is carried out the agitated reactor pressure vessel of heating and melting and enhancing perfusion and links to each other and can be incubated with agitated reactor.The present invention improves traditional hot thermosetting resin transfer modling equipment; Make it be applicable to thermoplas tic resin composite's preparation moulding; And overcome the problem that thermoplas tic resin composite's viscosity is difficult for injection and soaks into greatly, can prepare large-sized composite product, adopted the product mechanical property of this equipment preparation excellent; Recyclable utilization has vast market prospect.
For solving the problems of the technologies described above, first aspect of the present invention provides a kind of thermoplas tic resin composite's of being applicable to resin transfer moulding equipment, comprises agitated reactor and injected rubber hose; Said agitated reactor comprises: agitated reactor body, reaction kettle cover, agitating device and heater; Said reaction kettle cover is sealedly connected on agitated reactor body top, and agitated reactor covers and is provided with charge door, gum outlet and temperature-measuring port; Said injected rubber hose is connected with the gum outlet of said reaction kettle cover.
In another preference, said thermoplas tic resin composite is the CBT resin.
In another preference, said paddle is two-layer 45 ° of hinged joint oars up and down, and upper-lower position is adjustable.
In another preference, adopt cooling water that paddle is cooled off, cooling water pressure is 0.1MPa.
In another preference, have torquemeter on the paddle, can reflect that the real-time viscosity of resin changes.
In another preference, said agitated reactor covers and also is provided with protection gas inlet and the outlet of protection gas.
In another preference, said agitated reactor covers and also is provided with form and safety valve.
Preferably, said form is two.
In another preference, said injected rubber hose comprises injected rubber hose body and heating tape, and said heating tape is wrapped on the injected rubber hose body.
In another preference, said heater adopts conduction oil to heat.
In another preference, employing sealing ring and seal between reaction kettle cover and agitated reactor body with bolted.
In another preference, said sealing ring is a teflin ring.
In another preference, the said injected rubber hose other end connects heating mould, and said heating mould is provided with many runners.
In another preference, the paddle diameter of said paddle is 50～100mm, and speed of agitator is 0～1000rpm.
In another preference, described agitated reactor body is processed by stainless steel material, and inner surface is done polishing, surface roughness Ra≤0.6um, internal key surface roughness Ra≤0.6um.
In another preference, described agitated reactor design pressure is 1～5MPa, and operating pressure is 0.5～2.5Mpa.
In another preference, said kettle chuck and agitated reactor end socket design pressure are 0.5～1MPa, and operating pressure is a normal pressure, and maximum operating temperature is 250 ℃.
In another preference, the operating temperature of said heating tape is 150～250 ℃.
Second aspect of the present invention provides the method for a kind of thermoplas tic resin composite's of preparation resin transfer moulding, may further comprise the steps:
(a) prepare heating mould;
(a) thermoplas tic resin composite is added in the agitated reactor, agitated reactor is heated to predetermined temperature;
(b) feed nitrogen from protection gas inlet, the thermoplas tic resin composite in the stirred autoclave is until its complete fusion;
(c) when the viscosity of resin melt reaches predetermined value, will protect the gas exit seal, to the agitated reactor pressurization, utilize pressure that it is circulated in the off-the-shelf heating mould through injected rubber hose;
(d) resin melt contacts polymerization reaction take place with catalyst; After treating complete crystallization, cooling and demolding obtains product.
In another preference, prepare heating mould, may further comprise the steps:
(a) cutting fabric arrives fabric surface with catalyst cupport;
(b) the cleaning mould repeatedly applies releasing agent at die surface;
(c) cover the fabric that load has catalyst in the die surface shop;
(d) cover good fabric surface shop in the shop and cover auxilliary material;
(e) heating mould is vacuumized.
In another preference, said auxilliary material comprises release cloth, water conservancy diversion net and airfelt.
Embodiment of the present invention compared with prior art, the main distinction and effect thereof are:
1.RTM technology is a kind of traditional hot solidity composite material process planning, makes it be applicable to the preparation of thermoplastic composite after improving the RTM process equipment among the present invention.
2. the agitated reactor gum outlet of existing RTM equipment is at autoclave body bottom; And consider among the present invention that thermoplasticity CBT hardening of resin stops up the problem of resin outlet; The resin outlet is designed into the agitated reactor top; Being back in the agitated reactor under the effect of resin melt at gravity behind the completion injecting glue, can not stop up gum outlet.
3. the plastic holding device of existing RTM equipment does not have mechanical stirring device, and adds agitating device among the present invention, and purpose is in order the CBT resin to be heated evenly, to form the low melt of viscosity pole.
4. different with common paddle, adopt 45 ° of hinged joint oars among the present invention, two-layer about being divided into, and upper-lower position is adjustable.Select for use the hinged joint oar can not cause that inner paddle of kettle and resin outlet and temperature tube produce interference, can guarantee mixing effect simultaneously, be applicable to the CBT resin.
5. the injected rubber hose of existing RTM equipment need not insulation, and the injected rubber hose among the present invention has twined the heating tape, can guarantee like this that from the agitated reactor to the heating mould temperature of resin melt keeps constant in the whole process.
6. there is not the mounting torque appearance in the existing RTM equipment; Because be similar under the normal temperature of thermosetting resin of one type of epoxy resin and be liquid state; And thermoplasticity CBT resin is granular solids at normal temperatures; Add torquemeter and can monitor the viscosity variation of CBT resin melt in real time, help holding the injecting glue time.
In should be understood that within the scope of the present invention, above-mentioned each technical characterictic of the present invention and hereinafter can mutual combination between specifically described each technical characterictic in (like embodiment), thus constitute new or optimized technical scheme.As space is limited, this tired no longer one by one stating.
Description of drawings
Fig. 1 shows the structural representation of the resin transfer moulding equipment that is applicable to thermoplastic composite in the first embodiment of the invention;
Fig. 2 shows the structural representation of the reaction kettle cover of the resin transfer moulding equipment that is applicable to thermoplastic composite in the first embodiment of the invention;
Fig. 3 shows the structural representation of the paddle of the resin transfer moulding equipment that is applicable to thermoplastic composite in the first embodiment of the invention;
Fig. 4 shows the schematic flow sheet of the application process of the resin transfer moulding equipment that is applicable to thermoplastic composite in the second embodiment of the invention.
The specific embodiment
Term
The CBT resin
The CBT resin is the mixture of different low-molecular-weight cyclic oligomers.CBT resin normal temperature is down solid-state, fusion when being heated to uniform temperature; And after adding catalyst (and under suitable temperature), can be grouped to the thermoplastic polymer of HMW.CBT resin wetted ability is strong, filling capacity is strong; Good with the compatibility of various fillers, reinforcing material and macromolecular material.These characteristics make the CBT resin have unique effect in different applications.
The CBT resin has following characteristic:
Rapid polymerization: add catalyst among the CBT, ring-opening polymerisation is PBT; Select different catalyst and reaction temperature, the complete polymerization time of CBT may be controlled to tens seconds to dozens of minutes.The characteristics of CBT rapid polymerization make CBT in many different application, carry out rapid processing.
Thermoformable: the CBT that contains catalyst can be at 180～200 ℃ of polymerization PBT, and begin crystallization (forming hemihedral crystal thermoplastic PBT) immediately.In the time of 180～200 ℃, be hemihedral crystal thermoplastic PBT; More than 200 ℃, reaction is accelerated, and the PBT molecular weight that aggregates into reduces, and crystallization is slack-off; Near 225 ℃ the time, the PBT that aggregates into is difficult to crystallization (if crystallization then need be cooled off).Therefore, the suitable polymerization/crystallization temperature of CBT that contains catalyst is 180～190 ℃.
Reactionless heat: reactionless heat discharges when containing the CBT polymerization of catalyst.Therefore, instead would not be out of control; Can not should be the reaction intensification yet and damage part in the mould.Also mean when making the product of large thick-wall,, can shorten molding cycle because of considering the factor of heat.
In addition, the CBT resin can also be used to prepare the pre-soaking material, through fusion, infiltration, be cooled to solid again, and curing reaction does not take place.
Resin transfer moulding (RTM)
Resin transfer moulding (RTM) is a kind of traditional hot solidity composite material process planning, is usually used in preparing same with thermosetting compound material.Resin transfer molding (RTM) process is meant in the die cavity of mould, to place in advance and overlays material, reinforcing material etc.; Behind the mold closing; The resin compound of the uniform temperature for preparing is injected into to make it the mold cavity to soak under certain pressure from the hole for injecting glue that is arranged at the appropriate location and overlays material, curing then, the demoulding and obtain a kind of moulding process of goods.At present, resin transfer molding (RTM) process is one of the most active field of the work that conducted a research both at home and abroad in recent years.
In following narration, many ins and outs have been proposed in order to make the reader understand the application better.But, persons of ordinary skill in the art may appreciate that even without these ins and outs with based on the many variations and the modification of following each embodiment, also can realize each claim of the application technical scheme required for protection.
For making the object of the invention, technical scheme and advantage clearer, will combine accompanying drawing that embodiment of the present invention is done to describe in detail further below.
First embodiment of the invention relates to a kind of resin transfer moulding equipment that is applicable to thermoplasticity CBT resin composite materials.Fig. 1 is the structural representation of this equipment, and Fig. 2 is the structural representation of the reaction kettle cover of this equipment.Fig. 3 is the structural representation of the paddle of this equipment.
This resin transfer moulding equipment that is applicable to thermoplasticity CBT resin composite materials comprises: comprise agitated reactor 1 and injected rubber hose 2.
Agitated reactor 1 comprises: agitated reactor body 101, reacting kettle jacketing 102, agitated reactor end socket 103, agitator 104, paddle 105, heater 106 and reaction kettle cover 107; Reaction kettle cover 107 is sealedly connected on agitated reactor body 101 tops, and reaction kettle cover 107 is provided with charge door 108, gum outlet 109 and temperature-measuring port 113; Said injected rubber hose 2 is connected with the gum outlet 109 of said reaction kettle cover 107.
In this embodiment, gum outlet 109 is arranged on the reaction kettle cover 107, makes resin melt after accomplishing injecting glue, remaining material can rely on the effect of gravity to be back in the agitated reactor 1, prevents to stop up gum outlet 109 and injected rubber hose 2.In agitated reactor 1, add agitator 104 and paddle 105, help making resin to be heated evenly, form the low melt of viscosity pole, strengthened the injection and the effect of impregnation may of resin.Temperature-measuring port 113 can real time reaction agitated reactor body 101 temperature inside, help rationally controlling the injecting glue time, increase work efficiency.
Have torquemeter 116 on the agitator 104; Because of thermoplasticity CBT resin is granular solids at normal temperatures; The real-time viscosity that torquemeter 116 can be monitored the CBT resin melt in real time changes; Guarantee when resin viscosity reaches minimum, to inject, fully prolong the resin injection time, help the manufacturing of large scale product.In addition, be appreciated that and adopt viscosity tester or timer can replace torquemeter 116, reach the effect of grasping the injecting glue time, in some other embodiment of the present invention, also can not possess this torquemeter 116.
Also be provided with form 110 and safety valve 112 on the reaction kettle cover 107, preferably, form 110 is two.Form 110 is used to observe the real time status of resin in agitated reactor body 101, helps monitoring the process of production process.Safety valve 112 is used to ensure that the safety of production process carries out.In addition, be appreciated that in some other embodiment of the present invention also not possess this form 110 and safety valve 112.
Injected rubber hose 2 comprises injected rubber hose body 201 and heating tape 202, and heating tape 202 is wrapped on the injected rubber hose body 201.Heating tape 202 can be heated injected rubber hose body 201, has guaranteed that resin melt is transferred to the whole process of heating mould 3 from agitated reactor 1, and it is constant that the temperature of resin melt keeps.In addition, be appreciated that in some other embodiment of the present invention also can not possess this heating tape 202.
Heat (electrical heating) through 106 pairs of conduction oils of heater.Oil has fast, the homogeneous heating of firing rate, characteristics such as boiling point height, and application of heat oil can reach better heating effect.In addition, be appreciated that other modes such as also can directly adopting electrical heating heat.
Employing sealing ring 115 and seal between reaction kettle cover 107 and the agitated reactor body 101 with bolted.Preferably, said sealing ring 115 is a teflin ring.In addition, reaction kettle cover 107 also can adopt adhesive tape sealing with agitated reactor body 101.
Injected rubber hose 2 other ends connect heating mould 3, are provided with many runners.Heating mould 3 has heating function, is provided with many resin flow channels, helps resin and soaks into fiber, and the CBT resin melt gets into and accomplishes polymerisation and solidification process in the heating mould 3.
Through experiment test, preferably parameter does, the paddle diameter of paddle 105 is 50～100mm, and speed of agitator is 0～1000rpm.Agitated reactor body 101 is processed by stainless steel material, and inner surface is done polishing, surface roughness Ra≤0.6um, internal key surface roughness Ra≤0.6um.Agitated reactor 1 design pressure is 1～5MPa, and operating pressure is 0.5～2.5Mpa.Kettle chuck 102 is 0.5～1MPa with agitated reactor end socket 103 design pressures, and operating pressure is a normal pressure, and maximum operating temperature is 250 ℃.The operating temperature of heating tape 202 is 150～250 ℃.
This embodiment also can be provided with the digital display console, can the real time reaction temperature of charge, and relevant parameters such as rotating speed size and melt viscosity are convenient to rationally control the injecting glue time, farthest increase work efficiency.
Second embodiment of the invention relates to a kind of application that is applicable to the resin transfer moulding equipment of thermoplastic composite.Fig. 4 is the schematic flow sheet of this equipment application process, may further comprise the steps:
Step 401 is according to the size cutting fabric of preparation product; Get into step 402 then, polymerisation catalysts is loaded to the surface of fabric.
Step 501 is cleaned out die surface, polishes smooth, and gets into step 502 then, applies releasing agent equably at die surface.
Step 503 has the fabric shop of catalyst to be layed onto in the mould that scribbles releasing agent in the step 502 load in the step 401; Get into step 504 then, cover good fabric surface in the shop and spread successively and cover auxilliary material; Preferably, auxilliary material comprises release cloth, water conservancy diversion net and airfelt; Resin inlet on the heating mould places water conservancy diversion online, and outlet places on the airfelt.Get into step 504 then, heating mould is sealed vacuum, preferably, can seal vacuum with vacuum bag and sealant tape.
Step 601 joins composite in the agitated reactor; Get into step 602, be heated to preset temperature; Get into step 603, in agitated reactor, feed nitrogen and carry out mechanical agitation, preferably, mixing speed is 0-1000rpm; Get into step 604, real-time monitored data variation from the torquemeter of agitated reactor, when viscosity reached predetermined value, to the agitated reactor pressurization, Composite Melt got into heating mould through injected rubber hose.Preferably, when melt viscosity reaches minimum of a value and keeps 20 minutes when constant, pour into.
The Composite Melt of step 604 is filled in the heating mould of envelope vacuum in the step 505, gets into step 605, composite soaks into fabric, and gets into step 606 simultaneously, contacts polymerization reaction take place and crystallization with catalyst.After treating complete crystallization, get into step 607, to composite cool off, the demoulding, carry out deburring and polishing afterwards, obtain the product in the step 608.
Embodiment
Use equipment of the present invention and method thermoplasticity PBT composite electric motor car base plate, may further comprise the steps:
1. according to electric motor car base plate die size cutting glass fabric, carbon fibre fabric and glass felt successively some (quantity of fabric, size and model are as shown in table 1).
Kind, size and the quantity of the fabric of table 1 experiment usefulness
2. polymerisation catalysts is loaded to fabric surface.
3. mold cleaning and preparation: the surface size of electric motor car base plate mould is 160 * 110 square centimeters, with 1000 order sand paper die surface is polished smooth, then with alcohol with the die surface wiped clean.
4, coating release agent: evenly apply releasing agent at die surface, left standstill then 20 minutes, repeat this operation 5 times.
5, fortifying fibre is covered in the shop: cover the reinforcement fabrics that catalyst is arranged through area load in the die surface shop, shop layer order is followed successively by two-layer T700 12K carbon fiber twills, triplex glass fiber bi-axial fabric, two-layer T700 12K carbon fiber twills from top to bottom.
6, auxilliary material is covered in the shop: spread successively in the fabric surface of completing and cover release cloth, water conservancy diversion net, the resin inlet tube of heating mould places water conservancy diversion online, and outlet places on the airfelt.
7, envelope vacuum: cover whole sealant tape inner region with vacuum bag; The vacuum bag periphery is sealing adhesive with sealant tape, makes sealant tape inner region sealed air-tight, is in communication with the outside through resin inlet tube and resin outlet; Clamping the resin inlet tube makes it airtight; Through the resin outlet sealant tape inner region is vacuumized, check the sealing of package system simultaneously, guaranteeing does not have gas leakage.
8,5000 gram CBT resins are added in the agitated reactor, be warming up to more than 180 ℃, continue mechanical agitation and feed nitrogen,, become the low resin melt of viscosity pole until its complete fusion.
9, resin soaks into: from the agitated reactor digital display instrument, can see that the real-time viscosity of resin melt changes, when melt viscosity reaches minimum of a value and keeps 20 minutes when constant, can carry out the resin perfusion.With the nitrogen outlet sealing, in closed reaction kettle, be forced into about 0.8MPa, utilize pressure that the CBT resin is poured in the heating mould through pipeline, whole process mold temperature need remain on about 180 ℃, and guarantees that sealing area is air tight.
10, polymerisation: the CBT resin melt contacts polymerization reaction take place with catalyst when soaking into fabric, and polymerisation and crystallization process carry out synchronously.Get final product cooling and demolding after the complete crystallization of PBT, carry out deburring, polishing afterwards, obtain product.
Product after the completion is through C-scanning and X-ray check, and its internal soundness is even, and no bubble and dry spot defective exist, and observes through SEM and finds that the resin reinforced fiber associativity is better on microstructure.Through experiment test, the PBT performance of composites that is used to prepare this electric motor car base plate (is seen table 2) as follows:
Table 2 The performance test results
Advantage of the present invention:
1. traditional hot solidity RTM technology is improved, made it be applicable to the preparation of thermoplastic composite.
2. realized the continuous infiltration of low viscosity thermoplastic composite, wetting property is good, and technological process is short, and efficient is high.
3. can prepare large-sized product, the product mechanical property is excellent, and recyclable utilization is applicable to industrialization manufacturing in enormous quantities continuously.
All documents in that the present invention mentions are all quoted as a reference in this application, are just quoted such as a reference separately as each piece document.Should be understood that in addition after having read above-mentioned teachings of the present invention, those skilled in the art can do various changes or modification to the present invention, these equivalent form of values fall within the application's appended claims institute restricted portion equally.
Claims (16)
1. a resin transfer moulding equipment that is applicable to the thermoplas tic resin composite is characterized in that, comprises agitated reactor and injected rubber hose; Said agitated reactor comprises: agitated reactor body, reaction kettle cover, agitating device and heater; Said reaction kettle cover is sealedly connected on agitated reactor body top, and agitated reactor covers and is provided with charge door, gum outlet and temperature-measuring port; Said injected rubber hose is connected with the gum outlet of said reaction kettle cover.
2. the resin transfer moulding equipment that is applicable to the thermoplas tic resin composite according to claim 1 is characterized in that, said paddle is two-layer 45 ° of hinged joint oars up and down, and upper-lower position is adjustable.
3. the resin transfer moulding equipment that is applicable to the thermoplas tic resin composite according to claim 1 and 2 is characterized in that, has torquemeter on the paddle, can reflect that the real-time viscosity of resin changes.
4. the resin transfer moulding equipment that is applicable to the thermoplas tic resin composite according to claim 1 and 2 is characterized in that, said agitated reactor covers and also is provided with protection gas inlet and the outlet of protection gas.
5. the resin transfer moulding equipment that is applicable to the thermoplas tic resin composite according to claim 1 and 2 is characterized in that said agitated reactor covers and also is provided with form and safety valve.
6. the resin transfer moulding equipment that is applicable to the thermoplas tic resin composite according to claim 1 and 2 is characterized in that said injected rubber hose comprises injected rubber hose body and heating tape, and said heating tape is wrapped on the injected rubber hose body.
7. the resin transfer moulding equipment that is applicable to the thermoplas tic resin composite according to claim 1 and 2 is characterized in that, said heater adopts conduction oil to heat.
8. the resin transfer moulding equipment that is applicable to the thermoplas tic resin composite according to claim 1 and 2 is characterized in that, employing sealing ring and seal with bolted between reaction kettle cover and agitated reactor body.
9. the resin transfer moulding equipment that is applicable to the thermoplas tic resin composite according to claim 1 and 2 is characterized in that, the said injected rubber hose other end connects heating mould, and said heating mould is provided with many runners.
10. the resin transfer moulding equipment that is applicable to the thermoplas tic resin composite according to claim 1 and 2 is characterized in that the paddle diameter of said paddle is 50～100mm, and speed of agitator is 0～1000rpm.
11. the resin transfer moulding equipment that is applicable to the thermoplas tic resin composite according to claim 1 and 2; It is characterized in that described agitated reactor body is processed by stainless steel material, inner surface is done polishing; Surface roughness Ra≤0.6um, internal key surface roughness Ra≤0.6um.
12. the resin transfer moulding equipment that is applicable to the thermoplas tic resin composite according to claim 1 and 2 is characterized in that described agitated reactor design pressure is 1～5MPa, operating pressure is 0.5～2.5Mpa.
13. the resin transfer moulding equipment that is applicable to the thermoplas tic resin composite according to claim 1 and 2 is characterized in that, said kettle chuck and agitated reactor end socket design pressure are 0.5～1MPa, and operating pressure is a normal pressure, and maximum operating temperature is 250 ℃.
14. the resin transfer moulding equipment that is applicable to the thermoplas tic resin composite according to claim 1 and 2 is characterized in that the operating temperature of said heating tape is 150～250 ℃.
15. a method for preparing thermoplas tic resin composite's resin transfer moulding is characterized in that, may further comprise the steps:
(a) prepare heating mould;
(a) thermoplas tic resin composite is added in the agitated reactor, agitated reactor is heated to predetermined temperature;
(b) feed nitrogen from protection gas inlet, the thermoplas tic resin composite in the stirred autoclave is until its complete fusion;
(c) when the viscosity of resin melt reaches predetermined value, will protect the gas exit seal, to the agitated reactor pressurization, utilize pressure that it is circulated in the off-the-shelf heating mould through injected rubber hose;
(d) resin melt contacts polymerization reaction take place with catalyst; After treating complete crystallization, cooling and demolding obtains product.
16. the method for preparation thermoplas tic resin composite's according to claim 15 resin transfer moulding is characterized in that, prepares heating mould, may further comprise the steps:
(a) cutting fabric arrives fabric surface with catalyst cupport;
(b) the cleaning mould repeatedly applies releasing agent at die surface;
(c) cover the fabric that load has catalyst in the die surface shop;
(d) cover good fabric surface shop in the shop and cover auxilliary material;
(e) heating mould is vacuumized.
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| CN102922751A (en) * | 2012-11-21 | 2013-02-13 | 中国科学院宁波材料技术与工程研究所 | Resin transfer molding glue injection machine for continuous fiber reinforced nylon 6 composite material |
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| CN104526954A (en) * | 2014-12-15 | 2015-04-22 | 湖北三江航天红阳机电有限公司 | Resin transfer molding glue-injecting device |
| CN114013071A (en) * | 2021-10-15 | 2022-02-08 | 中国航发北京航空材料研究院 | High-temperature resin melting injection system and injection method |
| CN115464904A (en) * | 2022-08-16 | 2022-12-13 | 哈尔滨工业大学 | Glue injection pultrusion system for preparing acrylic-based continuous fiber reinforced composite material and molding process thereof |
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| CN102922751A (en) * | 2012-11-21 | 2013-02-13 | 中国科学院宁波材料技术与工程研究所 | Resin transfer molding glue injection machine for continuous fiber reinforced nylon 6 composite material |
| CN102922751B (en) * | 2012-11-21 | 2015-06-17 | 中国科学院宁波材料技术与工程研究所 | Resin transfer molding glue injection machine for continuous fiber reinforced nylon 6 composite material |
| CN102950779A (en) * | 2012-11-29 | 2013-03-06 | 中国科学院宁波材料技术与工程研究所 | Resin transfer molding forming glue injection machine of continuous fiber reinforced PBT (polybutylece terephthalate) composite materials |
| CN104526954A (en) * | 2014-12-15 | 2015-04-22 | 湖北三江航天红阳机电有限公司 | Resin transfer molding glue-injecting device |
| CN104526954B (en) * | 2014-12-15 | 2016-08-31 | 湖北三江航天红阳机电有限公司 | A kind of resin transfer moulding glue filling device |
| CN114013071A (en) * | 2021-10-15 | 2022-02-08 | 中国航发北京航空材料研究院 | High-temperature resin melting injection system and injection method |
| CN115464904A (en) * | 2022-08-16 | 2022-12-13 | 哈尔滨工业大学 | Glue injection pultrusion system for preparing acrylic-based continuous fiber reinforced composite material and molding process thereof |
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