CN204712478U - A kind of equipment for the preparation of fiber reinforcement MC nylon - Google Patents
A kind of equipment for the preparation of fiber reinforcement MC nylon Download PDFInfo
- Publication number
- CN204712478U CN204712478U CN201520366148.7U CN201520366148U CN204712478U CN 204712478 U CN204712478 U CN 204712478U CN 201520366148 U CN201520366148 U CN 201520366148U CN 204712478 U CN204712478 U CN 204712478U
- Authority
- CN
- China
- Prior art keywords
- impregnation mold
- fiber
- impregnation
- equipment
- nylon
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
Links
Landscapes
- Reinforced Plastic Materials (AREA)
Abstract
The utility model discloses a kind of equipment for the preparation of fiber reinforcement MC nylon.This equipment comprises pouring device, immersion system and vacuum plant, described immersion system comprises impregnation mold and to be located in impregnation mold and the piston be connected with depression bar and pouring channel, one end of pouring channel is the inlet be connected with described pouring device, the other end is flow export, described flow export is located at the inner chamber lower end of impregnation mold, the madial wall of impregnation mold establishes disappointing groove, establishes the bleeding point be connected with described vacuum plant in the upper end of impregnation mold.The utility model makes to treat that poly-monomer carries out vacuum impregnation from bottom to up in impregnation mold, increases dipping cavity pressure and makes fiber by thorough impregnation, can improve the intensity of nylon widely; This equipment is simple, plastic complex thin-wall component, is applicable to producing in enormous quantities.
Description
Technical field
The utility model relates to a kind of equipment for the preparation of fiber reinforcement MC nylon, belongs to field of compound material.
Background technology
Strengthen the fiber of nylon mainly based on glass fibre and carbon fiber.Fortifying fibre can be divided into the short chopping of fiber dust, fiber, long fibre three class by length.The molding mode of fiber reinforced nylon is roughly divided into two kinds: cast molding, double screw extruder are shaping.The advantage of traditional cast molding is: the length not destroying fiber, technique is simple, can the parts of forming shape complexity, but the pore of material internal, being uniformly distributed of fiber, dry zone of fiber are difficult to control, and the fiber content of material is also difficult to improve.The shaping situation that can solve fiber preferably and be evenly distributed of double screw extruder, the pore of material internal simultaneously, well improved with dry zone of fiber, but double screw extruder is molded over fibrous fracture a lot of in the motion of screw rod, shorten, make using the effect of long fiber reinforcement greatly to weaken.The complex process that double screw extruder is shaping simultaneously, is also not suitable for the shaping part compared with complicated shape.
Cui's week equality " mechanical property of Glass Fiber Reinforced MC-nylon Composites " (plastics industry, 1998,26th volume, the 5th phase) in investigated the surface treatment of glass fibre in glass fiber reinforcement MC nylon (GFRMCM) and addition to the impact of mechanical property.And be studied on FGRMCN material interface and on the impact of mechanical property with SEM.Result shows: it is effectively for using KH550 to make coupling agent to GFRMCN composite.When glass adds 40%, hot strength improves 32.2% than matrix, and stretch elastic modelling quantity and improve 152%, bending strength improves 74.3%, and the modulus of elasticity in static bending improves 117%, and notch impact toughness improves 162%.According to preparation technology's feature of material, the addition of glass is advisable with 30% ~ 40%, has both ensured good comprehensive mechanical property, has again good process operability.
(engineering plastics are applied in " the mechanical property research of Long Glass Fiber Reinforced Pa 6 " of Liu Zhengjun etc., 2005,33rd volume, 5th phase) in adopt a kind of new melt impregnating process to prepare long glass fiber reinforced nylon 6 composite material, have studied glass fiber content, the impact of Length of Glass Fiber distribution on composite materials property.Result shows, when glass mass fraction is 50%, the hot strength of composite is 234 MPa, and bending strength is 349 MPa, and the modulus of elasticity in static bending is 11.4 GPa, notch impact strength is 313 J/m, and comprehensive mechanical property is obviously better than short glass fiber reinforced nylon 6 composite.
Utilize glass fibre to pass through the technique of tradition casting, be difficult to accomplish being uniformly distributed of fiber, along with improving constantly of fiber content, the pore of material internal and dry zone of fiber have a strong impact on the quality of sample.Utilize glass fibre shaping by double screw extruder, the length of fiber cannot ensure, and cannot shaping complex parts.Make to strengthen successful, just must improve the length of glass fibre, keep higher content of glass fiber simultaneously.
Utility model content
The technical problem that the utility model solves is, in the long stapled situation of use, ensure that the dipping effect treating poly-monomer and fiber is complete, keep material to have higher fiber content, eliminate material internal pore, dry zone of fiber simultaneously, enhance the mechanical performance of nylon.
The technical solution of the utility model is, a kind of equipment for the preparation of fiber reinforcement MC nylon is provided, comprise pouring device, immersion system and vacuum plant, described immersion system comprises impregnation mold and to be located in impregnation mold and the piston be connected with depression bar and pouring channel, one end of pouring channel is the inlet be connected with described pouring device, the other end is flow export, described flow export is located at the inner chamber lower end of impregnation mold, the madial wall of impregnation mold establishes disappointing groove, establishes the bleeding point be connected with described vacuum plant in the upper end of impregnation mold.
Further, described impregnation mold is cylindrical.
Further, described pouring channel is located in the sidewall of impregnation mold.
Further, the thermocouple be connected with temperature feedback control system is established in the sidewall of described impregnation mold.
The utility model is prepared long glass fibres by the method for vacuum high-pressure casting and is strengthened MC nylon.Preferential employing long glass fibres, Fiber Aspect Ratio is large, strengthens Be very effective.Cast in the bottom of fiber, liquid is flooded from the bottom of fiber, while dipping, take to vacuumize Exhaust Gas in impregnation mold, increase liquid to the dipping of fiber, now negative pressure is used to overcome the resistance that gas flows in closely knit fiber, and therefore vacuum pressure will be determined according to the thickness of fiber, cast shape and compaction rate, vacuum pressure value in impregnation mold chamber, at more than 300mmHg, can be easier to discharge the residual gas in fiber; When vacuum pressure is lower than 300mmHg, gas is difficult to overcome the resistance that flows in void-free fibre and discharges, thus makes residual increased number of stomata in nylon foundry goods, affects the intensity of nylon foundry goods.Being paved into of fiber is taked to disperse staggered distribution, and the fiber of material is uniformly distributed, and the mechanical property of material is shown as isotropism simultaneously.Last extrusion forming obtains fiber reinforcement MC nylon foundry goods.Pressurization can get rid of gas residual in foundry goods, improves the density of foundry goods, and make fiber impregnation in foundry goods complete, intensity is improved, and for making intensity improve obviously, the pressure of pressurization should be not less than 4MPa.Wherein, vacuum pressure refers to that atmospheric pressure deducts absolute pressure.
The utility model compared with prior art has following characteristics: the first, makes liquid very complete to fiber impregnation, the not dry zone of fiber of material internal; The second, the pore that high pressure makes material produce in inprocess shrinkage process is compressed, and eliminates the impact of pore on material mechanical performance.3rd fiber content that improve material, makes material have very high intensity and mechanical property.
The utility model is by adopting the method for vacuum high-pressure cast molding, long glass fibres is utilized to strengthen the material of MC nylon, fiber content can reach 60% ~ 70%, and evenly, the pore of material sample inside is eliminated completely simultaneously, whole fibers is treated poly-monomer dipping completely, not dry zone of fiber.Sample part is under high pressure polymerized, and the shrinkage factor of finished product is extremely low, is no more than 0.27%, and the heat distortion temperature of sample promotes 45 DEG C simultaneously.
The beneficial effects of the utility model are, treat poly-monomer impregnation of fibers from bottom to up, also vacuumize while dipping, treat that poly-monomer and fiber tentatively flood; Then rely on and increase impregnation mold cavity pressure, fiber is treated, and poly-monomer fully floods, and treats that poly-monomer is polymerized under stress afterwards, increases fiber content in the material simultaneously.The intensity of nylon can be improved widely; This technique is simple, plastic complex thin-wall component, is applicable to producing in enormous quantities.
Accompanying drawing explanation
Fig. 1 represents the top view of the impregnation mold that the utility model provides.
Fig. 2 represents the sectional view along A-A face in Fig. 1 of the impregnation mold that the utility model provides.
Detailed description of the invention
Below in conjunction with drawings and Examples, the utility model is described in further detail.
Embodiment 1
A kind of equipment for the preparation of fiber reinforcement MC nylon that the present embodiment provides, this equipment as depicted in figs. 1 and 2, comprise pouring device, immersion system and vacuum plant, the piston 2 that immersion system comprises columniform impregnation mold 1 and is located in impregnation mold 1, pouring channel 3 is established in the sidewall of impregnation mold 1, one end of pouring channel 3 is the inlet 31 be connected with described pouring device, the other end is flow export 32, described flow export 32 is located at the lower end of impregnating by pressure mould 1, the madial wall of impregnating by pressure mould 1 establishes disappointing groove 4, the bleeding point 5 be connected with described vacuum plant is established in the upper end of impregnating by pressure mould 1, in Fig. 2, label 6 represents fiber.Establish the thermocouple be connected with temperature feedback control system in the sidewall of impregnation mold 1, facilitate monitoring temperature.
Embodiment 2
The technique of a kind of glass fiber reinforcement MC nylon that the present embodiment provides, the concrete steps of this technique are as follows: length is about KH550 (silane coupler) solution that 50mm glass fibre puts into 1%, after 45min, taking-up is dried, in the oven dry of 100 DEG C, baking oven, by staggered being laid in bottom impregnation mold of the glass fibre of oven dry dispersion, then impregnation mold is put into the baking oven that design temperature is 180 DEG C, heating, insulation, makes impregnation mold and fiber preheating, it is 120 ~ 140 DEG C in temperature, when vacuum pressure is 725 ~ 740mmHg, by clean for caprolactam dehydration, add the NaOH open loop of 0.41% mass parts, dehydration is clean again, the curing agent TDI (toluene di-isocyanate(TDI)) adding 0.5% is obtained afterwards treats poly-monomer, connect the upper end of pouring device and pouring channel inlet, poly-monomer is injected into rapidly bottom impregnation mold by pouring channel to utilize pouring device to treat, treat that poly-monomer is flowed out by the flow export of pouring channel lower end to flood from bottom to up glass fibre, impregnation mold is vacuumized simultaneously, vacuum pressure is about 400mmHg, after liquid has injected, pull down the connection of pouring device and pouring channel inlet, pouring channel upper end is blocked with bolt tightening, press down piston rapidly, pressure is added to 6MPa, insulation 30min, cooling, obtains long glass fibres and strengthens MC nylon foundry goods.
When content of glass fiber reaches 47%, hot strength reaches 231MPa, and bending strength is 321MPa, and the modulus of elasticity in static bending is 12.9GPa, notch impact strength 51KJ/m
2.
Embodiment 3
The technique of a kind of MC nylon reinforced with carbon fiber that the present embodiment provides, the concrete steps of this technique are as follows: length is about 50mm carbon fiber and puts into heat treatment burner hearth, design temperature 450 DEG C, and heating, is incubated 1 hour, by staggered being laid in bottom impregnation mold of the carbon fiber of oven dry dispersion, then impregnation mold is put into the baking oven that design temperature is 180 DEG C, heating, insulation, makes impregnation mold and fiber preheating, be 120 ~ 140 DEG C in temperature, when vacuum pressure is 725 ~ 740mmHg, by clean for caprolactam dehydration, add the NaOH open loop of 0.41% mass parts, dehydration is clean again, the curing agent TDI (toluene di-isocyanate(TDI)) adding 0.5% is obtained afterwards treats poly-monomer, connect pouring device and pouring channel inlet upper end, poly-monomer is injected into rapidly bottom impregnation mold by pouring channel to utilize pouring device to treat, treat that poly-monomer is flowed out by the flow export of lower end to flood from bottom to up glass fibre, impregnation mold is vacuumized simultaneously, vacuum pressure is about 350mmHg, after liquid has injected, pull down the connection of pouring device and pouring channel inlet upper end, the inlet of pouring channel upper end is blocked with bolt tightening, press down piston rapidly, pressure is added to 6MPa, insulation 30min, cooling, obtains long carbon fiber and strengthens MC nylon foundry goods.
When carbon fiber content reaches 41%, hot strength reaches 291MPa, and bending strength is 401MPa, and the modulus of elasticity in static bending is 15.1GPa, notch impact strength 64KJ/m
2.
Claims (4)
1. the equipment for the preparation of fiber reinforcement MC nylon, it is characterized in that, comprise pouring device, immersion system and vacuum plant, described immersion system comprises impregnation mold (1) and to be located in impregnation mold (1) and the piston (2) be connected with depression bar and pouring channel (3), one end of pouring channel (3) is the inlet (31) be connected with described pouring device, the other end is flow export (32), described flow export (32) is located at the intracavity bottom of impregnation mold (1), the madial wall of impregnation mold (1) establishes disappointing groove (4), the bleeding point (5) be connected with described vacuum plant is established in the upper end of impregnation mold (1).
2. equipment as claimed in claim 1, it is characterized in that, described impregnation mold (1) is for cylindrical.
3. equipment as claimed in claim 1, it is characterized in that, described pouring channel (3) is located in the sidewall of impregnation mold (1).
4. equipment as claimed in claim 1, is characterized in that, establish the thermocouple be connected with temperature feedback control system in the sidewall of described impregnation mold (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520366148.7U CN204712478U (en) | 2015-06-01 | 2015-06-01 | A kind of equipment for the preparation of fiber reinforcement MC nylon |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520366148.7U CN204712478U (en) | 2015-06-01 | 2015-06-01 | A kind of equipment for the preparation of fiber reinforcement MC nylon |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204712478U true CN204712478U (en) | 2015-10-21 |
Family
ID=54311503
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520366148.7U Withdrawn - After Issue CN204712478U (en) | 2015-06-01 | 2015-06-01 | A kind of equipment for the preparation of fiber reinforcement MC nylon |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204712478U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104890259A (en) * | 2015-06-01 | 2015-09-09 | 陶友瑞 | Process and equipment for producing fiber-reinforced MC nylon |
-
2015
- 2015-06-01 CN CN201520366148.7U patent/CN204712478U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104890259A (en) * | 2015-06-01 | 2015-09-09 | 陶友瑞 | Process and equipment for producing fiber-reinforced MC nylon |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101638321B (en) | Method for preparing carbon/carbon composite profiles | |
| CN101525433B (en) | Fiber-reinforced modified-reaction injection-molding nylon sheet and preparation method thereof | |
| CN110027226B (en) | A P-RTM molding process for preparing reinforced composites | |
| CN101143492A (en) | Compression type RTM forming method | |
| CN102024518A (en) | Composite wire core bar with thermoplastic resin substrate and preparation die and process thereof | |
| CN104890259B (en) | A kind of Processes and apparatus of fiber reinforcement MC nylon | |
| CN102167884A (en) | Preparation method of three-dimensional woven carbon fiber reinforced polyetheretherketone composite material | |
| CN103802324A (en) | Composite material containing tool and manufacturing process thereof | |
| CN103341985B (en) | Vacuum-assisted resin diffusion molding method for fiber-reinforced PBT composite material | |
| CN110951103A (en) | Carbon fiber reinforced phenolic aerogel composite material, preparation method thereof and carbon fiber reinforced carbon aerogel composite material | |
| CN113085221A (en) | Continuous fiber reinforced thermoplastic resin vacuum bag pressing forming device and method | |
| CN104910374A (en) | Preparation method for continuous fibre fabric-reinforced anionic polyamide 6 composite material and composite material | |
| CN204712478U (en) | A kind of equipment for the preparation of fiber reinforcement MC nylon | |
| CN204955474U (en) | Solidification equipment behind hollow section bar of pultrusion combined material | |
| CN106335156A (en) | Injection molding process for PP material bumper | |
| CN103213231A (en) | Mold pressing method for unidirectional high strength SMC molded product | |
| KR101940899B1 (en) | t-RTM Manufacturing Apparatus and t-RTM Manufacturing Method using thereof | |
| CN201792475U (en) | Mold for producing ultra-high molecular polythene board | |
| CN102248685A (en) | A kind of molding method of glass fiber reinforced plastic | |
| CN117945776A (en) | Carbon fiber net tire plate and preparation method and application thereof | |
| CN207480842U (en) | A kind of toilet seat mold | |
| CN110948904A (en) | Processing device and process for high-filling biomass fiber reinforced product | |
| CN109940908A (en) | A kind of moulding process of carbon fiber and phenolic resin composite | |
| CN108015946A (en) | A kind of die press technology for forming of long glass fiber reinforced resin bow arm | |
| CN106868676B (en) | A kind of three-dimensional shuffling polyimide fiber enhancing polyformaldehyde composite material and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20151021 Effective date of abandoning: 20170728 |
|
| AV01 | Patent right actively abandoned |