CN103660071A - Melt impregnation device for continuous long glass fiber reinforced polyester production as well as impregnation method - Google Patents
Melt impregnation device for continuous long glass fiber reinforced polyester production as well as impregnation method Download PDFInfo
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- CN103660071A CN103660071A CN201310698886.7A CN201310698886A CN103660071A CN 103660071 A CN103660071 A CN 103660071A CN 201310698886 A CN201310698886 A CN 201310698886A CN 103660071 A CN103660071 A CN 103660071A
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Abstract
The invention relates to a melt impregnation device for continuous long glass fiber reinforced polyester production as well as an impregnation method. The melt impregnation device comprises a casing, a reaction tank and an impregnation tank, wherein a reaction tank glass fiber inlet is formed in the front end of the reaction tank, a reaction tank glass fiber outlet is formed in the rear end of the reaction tank, and the reaction tank is filled with a compatilizer; the impregnation tank comprises a die cavity, a resin lead-in channel inlet, a glass fiber inlet, a glass fiber outlet and a glass fiber dispersion impregnation rolling wheel; and the resin lead-in channel inlet, the glass fiber inlet and the glass fiber outlet are communicated with the die cavity respectively, the glass fiber dispersion impregnation rolling wheel is placed in the die cavity filled with melt polyester resin. Compared with the prior art, the melt impregnation device and the impregnation method have the advantages that friction and bending loss of fiber glass filaments can be reduced, the impregnation speed is increased, the productivity is improved, and the processing cost is reduced simultaneously; and the compatilizer is used for glass fiber pretreatment, so that the binding force and the impregnation effect between the glass fiber and the resin are improved, and finally, the product performance is improved greatly.
Description
Technical field
The invention belongs to new material modification processing technique field, be specifically related to continuous long glass fiber reinforced polyester and produce with glass fiber bundle response type infiltrated with molten metal equipment and wetting method.For continuous long glass fiber, strengthen the production of thermoplastic polyester.
Background technology
The glass fibre length that the glass fibre that traditional method of modifying is produced strengthens thermoplastic polyester is generally less than 0.5mm, average length is 2-3mm, the stress destruction of its goods is mainly that glass fibre is extracted from matrix, glass fibre is more short more easily to be extracted from matrix resin, and the intensity of goods is just lower.Eighties of last century latter stage, external modified poly ester industry starts to emerge continuous long glass fiber and strengthens thermoplastic polyester (LFT).Strengthen thermoplastic polyester with traditional glass fibre and compare, the glass fibre length of LFT is obviously greater than the length of glass fibre in the reinforced polyester of produced in conventional processes.Because the length of glass fibre in LFT is longer, brought into play better the enhancing ability of glass fibre, thereby give rigidity, mechanical strength, impact strength, creep resistance that goods are higher, simultaneously because the length of glass fibre is longer, in the process of moulding, glass fibre is not easy to be orientated, so improved the defect of the easy buckling deformation of traditional glass fiber reinforced articles.Compare with traditional material, LFT has obviously high performance advantage and the dimensional stability of goods, so LFT material just becomes in composite markets the class new product in projection very soon.
This class material is as to mould the best solution of Dai Gang, by a large number for auto industry, to alleviate the weight of automobile, energy-saving and emission-reduction.As the bumper for automobile, instrument board support bracket, battery load-bearing groove, chair framework, the parts such as engine bonnet.Except for automotive field also for various fields such as household electrical appliances, environmental protection machinery, building, engineering, Aeronautics and Astronautics.
At present, the production of LFT material be take infiltrated with molten metal method as main.Its technical process is that glass fibre passes the die cavity that is full of melt under the effect of tractive force, and glass fiber bundle scatters in die cavity under the effect of interior arrangement, then by resin, is infiltrated the inside of glass fiber bundle, fully contacts with each glass fiber.Then through the glass fiber bundle infiltrating, from infiltrating the outlet of equipment glass fibre, involve, then strengthen thermoplastic polyester particle through continuous long glass fiber cooling, that be cut into Len req after drying.Yet can the key technology of this manufacture of materials be just resin and to glass fibre, infiltrate fully fast.Key technology is embodied in: 1) glass fibre is by infiltrating in equipment process, and the degree of wear is less, because if the serious immersion equipment that easily stops up of the degree of wear causes producing unstable; 2) glass fibre, through infiltrating in equipment process, is fully infiltrated by inner molten resin, and even resin-coating is to every glass fiber single filament, because effect of impregnation is bad, the outward appearance of goods is floating fine serious, and the intensity of goods is not high simultaneously; 3) glass fibre is faster by the linear velocity of infiltration apparatus, and the output of LFT material is higher, and the processing cost of the LFT material of Unit Weight is lower simultaneously.Only have the infiltration equipment that above three key technologies can reach just to can be regarded as successful equipment.
France atropic company 1989 is at the disclosed Patents of Chinese patent CN1021643C, and the bending that it is characterized by a similar just profound curve infiltrates runner.The polyester having plastified enters in die cavity and contacts with glass fibre, and glass fiber bundle, when the crest by curved channel and trough, scatters under the effect of tension force, is then melted resin and fully infiltrates.The advantage of this Patent design is that resin is better to the effect of impregnation of glass fibre, but exists very serious defect, be that glass fiber is easily worn, especially hauling speed is faster, and the tension force that glass fibre is subject to is larger, more easily wearing and tearing, cause production unstable, even cause stopping production.We also consult and have verified the granted patent of domestic other companies or colleges and universities simultaneously.All exist in varying degrees some defects, can realize almost not having of above-mentioned 3 key technologies.
Summary of the invention
Object of the present invention is exactly to provide a kind of lower processing cost that has in order to overcome the defect of above-mentioned prior art existence, higher output, higher production stability, the continuous long glass fiber reinforced polyester of higher material property is produced with infiltrated with molten metal device and wetting method.
Object of the present invention can be achieved through the following technical solutions: a kind of continuous long glass fiber reinforced polyester is produced and used infiltrated with molten metal device, and this device for glass fiber bundle response type infiltrated with molten metal equipment, is characterized in that, comprises
Housing,
Reactive tank, its front end is provided with reactive tank glass fibre entrance, and rear end is provided with the outlet of reactive tank glass fibre, and compatilizer is housed in reactive tank, and glass fibre is carried out to pretreatment, and compatilizer is grafted on glass fibre, and compatilizer is commercially available compatilizer;
Immersion slot, comprise that die cavity, resin introduction channel entrance, glass fibre entrance, glass fibre outlet, glass fibre disperse to infiltrate running roller, described resin introduction channel entrance, glass fibre entrance, glass fibre outlet are communicated with respectively die cavity, described glass fibre disperses to infiltrate running roller and is placed in die cavity, and molten polyester resin is housed in die cavity.
Between described reactive tank and immersion slot, be provided with lead, the pretreated glass fibre of drawing from the outlet of reactive tank glass fibre enters the glass fibre entrance of immersion slot through lead guiding.
Glass fibre in described immersion slot disperses to infiltrate running roller and is provided with at least two.
The material of described housing is the wear-resisting steel of crossing through over carburizing and nitrogen treatment.
The cross section of described reactive tank glass fibre entrance is that major axis is 3-8mm, the ellipse that minor axis is 2-6mm; The cross section of described reactive tank glass fibre outlet is that major axis is 3-6mm, the ellipse that minor axis is 2-4mm.
Described resin introduction channel entrance is that an interspace is the slit of 1-4mm.
In described immersion slot, the cross section of glass fibre entrance is that major axis is 3-6mm, the ellipse that minor axis is 2-7mm; The cross section of glass fibre outlet is that major axis is 2-8mm, the ellipse that minor axis is 2-6mm.
It is the running roller with helical groove that described glass fibre disperses to infiltrate running roller, the wide 6-20mm of bottom portion of groove, the degree of depth of groove is 3-10mm, glass fibre is wrapped on glass fibre dispersion infiltration running roller along groove after entering immersion slot die cavity, wind with one circuit and leave glass fibre dispersion infiltration running roller from adjacent grooved tracks, then introduce the grooved tracks that next glass fibre disperses to infiltrate running roller; It is 2-6mm that same glass fibre disperses the width of dividing plate between infiltration running roller upper groove and groove, and the number of turns of groove is at least the twice of glass fibre number of share of stock.
Use described device to make glass fiber bundle infiltrate the method for resin, it is characterized in that, the method comprises the following steps: glass fibre is first by reactive tank and compatilizer generation graft reaction, then the glass fibre entrance through immersion slot enters into die cavity, molten polyester resin enters into die cavity through resin introduction channel entrance, in being full of the die cavity of molten polyester resin, glass fibre dispersion infiltration running roller is walked around in glass fiber bundle dislocation under tension force traction, because disperseing to infiltrate running roller, glass fibre can make glass fibre fully scatter simultaneously, promote that molten polyester resin infiltrates glass fiber bundle inner, then the glass fiber bundle fully being infiltrated involves from glass fibre outlet, the glass fiber bundle having infiltrated is through cooling, the continuous long glass fiber that is cut into Len req after oven dry strengthens thermoplastic polyester particle.
Compare with existing glass fibre infiltrated with molten metal equipment, the present invention has the following advantages:
1) glass fibre is by infiltrating in equipment process, and the degree of wear is less, because if the serious immersion equipment that easily stops up of the degree of wear causes stopping production;
2) glass fibre, through infiltrating in equipment process, is fully infiltrated by inner molten resin, and even resin-coating is to every glass fiber single filament, because effect of impregnation is bad, the outward appearance of goods is floating fine serious, and the intensity of goods is not high simultaneously;
3) glass fibre is faster by the linear velocity of infiltration apparatus, and the output of LFT material is higher, and the processing cost of the LFT material of Unit Weight is lower simultaneously.
4) because this infiltration equipment is provided with one, glass fibre is carried out to pretreated equipment---reactive tank (this reactive tank is grafted to the compatilizer of glass fibre and resin on glass fibre), strengthen the adhesion between resin and glass fibre, made the performance of end article can be very high.Feature of the present invention is lower processing cost, higher output, higher production stability, higher material property.
Accompanying drawing explanation
Fig. 1 is that glass fibre disperses to infiltrate running roller;
Fig. 2 is that continuous long glass fiber reinforced polyester is produced with glass fiber bundle response type infiltrated with molten metal equipment.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in detail.
Continuous long glass fiber reinforced polyester is produced and is used an infiltrated with molten metal device, and this device, for glass fiber bundle response type infiltrated with molten metal equipment, comprises
Housing, be one through the casing of over carburizing and nitrogen treatment, there is high temperature resistant, wear-resistant, that corrosive characteristic; The inner space of housing is reactive tank and immersion slot;
Immersion slot, comprise that die cavity, resin introduction channel entrance 34, glass fibre entrance 31, glass fibre outlet 32, glass fibre disperse to infiltrate running roller 3, described resin introduction channel entrance 34, glass fibre entrance 31, glass fibre outlet 32 are communicated with respectively die cavity, described glass fibre disperses to infiltrate running roller 3 and is placed in die cavity, and glass fibre disperses to infiltrate running roller 3 two ends and is embedded on the biside plate of housing, in die cavity, form resin channels 35, by resin introduction channel entrance 34, introduce molten polyester resin.Glass fibre disperses to infiltrate running roller and is provided with two.Resin introduction channel entrance is that an interspace is the slit of 1mm; The cross section of glass fibre entrance is that major axis is 3mm, the ellipse that minor axis is 2mm; The cross section of glass fibre outlet is that major axis is 2mm, the ellipse that minor axis is 2mm; It is the running roller with helical groove that described glass fibre disperses to infiltrate running roller, the wide 6mm of bottom portion of groove, the degree of depth of groove is 3mm, glass fibre is wrapped on glass fibre dispersion infiltration running roller along groove after entering immersion slot die cavity, wind with one circuit and leave glass fibre dispersion infiltration running roller from adjacent grooved tracks, then introduce the grooved tracks that next glass fibre disperses to infiltrate running roller; It is 2mm that same glass fibre disperses the width of dividing plate between infiltration running roller upper groove and groove, and the number of turns of groove is at least the twice of glass fibre number of share of stock.
Between described reactive tank and immersion slot, be provided with lead 2, from the reactive tank glass fibre outlet 12 pretreated glass fibres of drawing, through lead 2 guiding, enter the glass fibre entrance 31 of immersion slot.
Use said apparatus to make glass fiber bundle infiltrate the method for resin, comprise the following steps:
Glass fibre is first by reactive tank 1 and compatilizer generation graft reaction, then the glass fibre entrance through immersion slot enters into die cavity, molten polyester resin enters into die cavity through resin introduction channel entrance, in being full of the die cavity of molten polyester resin, glass fibre dispersion infiltration running roller is walked around in glass fiber bundle dislocation under tension force traction, because disperseing to infiltrate running roller, glass fibre can make glass fibre fully scatter simultaneously, promote that molten polyester resin infiltrates glass fiber bundle inner, then the glass fiber bundle fully being infiltrated involves from glass fibre outlet, the glass fiber bundle having infiltrated is through cooling, the continuous long glass fiber that is cut into Len req after oven dry strengthens thermoplastic polyester particle.
The cross section of described reactive tank glass fibre entrance is that major axis is 8mm, the ellipse that minor axis is 6mm; The cross section of described reactive tank glass fibre outlet is that major axis is 6mm, the ellipse that minor axis is 2-4mm.
Glass fibre disperses to infiltrate running roller and is provided with two.Resin introduction channel entrance is that an interspace is the slit of 4mm; The cross section of glass fibre entrance is that major axis is 6mm, the ellipse that minor axis is 7mm; The cross section of glass fibre outlet is that major axis is 8mm, the ellipse that minor axis is 6mm; It is the running roller with helical groove that described glass fibre disperses to infiltrate running roller, the wide 20mm of bottom portion of groove, the degree of depth of groove is 10mm, glass fibre is wrapped on glass fibre dispersion infiltration running roller along groove after entering immersion slot die cavity, wind with one circuit and leave glass fibre dispersion infiltration running roller from adjacent grooved tracks, then introduce the grooved tracks that next glass fibre disperses to infiltrate running roller; It is 6mm that same glass fibre disperses the width of dividing plate between infiltration running roller upper groove and groove, and the number of turns of groove is at least the twice of glass fibre number of share of stock.
All the other are with embodiment 1.
Claims (9)
1. continuous long glass fiber reinforced polyester is produced and is used an infiltrated with molten metal device, and this device for glass fiber bundle response type infiltrated with molten metal equipment, is characterized in that, comprises
Housing,
Reactive tank, its front end is provided with reactive tank glass fibre entrance, and rear end is provided with the outlet of reactive tank glass fibre, and compatilizer is housed in reactive tank, and glass fibre is carried out to pretreatment, and compatilizer is grafted on glass fibre;
Immersion slot, comprise that die cavity, resin introduction channel entrance, glass fibre entrance, glass fibre outlet, glass fibre disperse to infiltrate running roller, described resin introduction channel entrance, glass fibre entrance, glass fibre outlet are communicated with respectively die cavity, described glass fibre disperses to infiltrate running roller and is placed in die cavity, and molten polyester resin is housed in die cavity.
2. a kind of continuous long glass fiber reinforced polyester according to claim 1 is produced and is used infiltrated with molten metal device, it is characterized in that, between described reactive tank and immersion slot, be provided with lead, the pretreated glass fibre of drawing from the outlet of reactive tank glass fibre enters the glass fibre entrance of immersion slot through lead guiding.
3. a kind of continuous long glass fiber reinforced polyester according to claim 1 is produced and is used infiltrated with molten metal device, it is characterized in that, the glass fibre in described immersion slot disperses to infiltrate running roller and is provided with at least two.
4. a kind of continuous long glass fiber reinforced polyester according to claim 1 is produced and is used infiltrated with molten metal device, it is characterized in that, the material of described housing is the wear-resisting steel of crossing through over carburizing and nitrogen treatment.
5. a kind of continuous long glass fiber reinforced polyester according to claim 1 is produced and is used infiltrated with molten metal device, it is characterized in that, the cross section of described reactive tank glass fibre entrance is that major axis is 3-8mm, the ellipse that minor axis is 2-6mm; The cross section of described reactive tank glass fibre outlet is that major axis is 3-6mm, the ellipse that minor axis is 2-4mm.
6. a kind of continuous long glass fiber reinforced polyester according to claim 1 is produced and is used infiltrated with molten metal device, it is characterized in that, described resin introduction channel entrance is that an interspace is the slit of 1-4mm.
7. a kind of continuous long glass fiber reinforced polyester according to claim 1 is produced and is used infiltrated with molten metal device, it is characterized in that, in described immersion slot, the cross section of glass fibre entrance is that major axis is 3-6mm, the ellipse that minor axis is 2-7mm; The cross section of glass fibre outlet is that major axis is 2-8mm, the ellipse that minor axis is 2-6mm.
8. a kind of continuous long glass fiber reinforced polyester according to claim 1 is produced and is used infiltrated with molten metal device, it is characterized in that, it is the running roller with helical groove that described glass fibre disperses to infiltrate running roller, the wide 6-20mm of bottom portion of groove, the degree of depth of groove is 3-10mm, glass fibre is wrapped on glass fibre dispersion infiltration running roller along groove after entering immersion slot die cavity, wind with one circuit and leave glass fibre dispersion infiltration running roller from adjacent grooved tracks, then introduce the grooved tracks that next glass fibre disperses to infiltrate running roller; It is 2-6mm that same glass fibre disperses the width of dividing plate between infiltration running roller upper groove and groove, and the number of turns of groove is at least the twice of glass fibre number of share of stock.
9. right to use requires the device described in 1 to make glass fiber bundle infiltrate the method for resin, it is characterized in that, the method comprises the following steps: glass fibre is first by reactive tank and compatilizer generation graft reaction, then the glass fibre entrance through immersion slot enters into die cavity, molten polyester resin enters into die cavity through resin introduction channel entrance, in being full of the die cavity of molten polyester resin, glass fibre dispersion infiltration running roller is walked around in glass fiber bundle dislocation under tension force traction, because disperseing to infiltrate running roller, glass fibre can make glass fibre fully scatter simultaneously, promote that molten polyester resin infiltrates glass fiber bundle inner, then the glass fiber bundle fully being infiltrated involves from glass fibre outlet, the glass fiber bundle having infiltrated is through cooling, the continuous long glass fiber that is cut into Len req after oven dry strengthens thermoplastic polyester particle.
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| CN201310698886.7A CN103660071B (en) | 2013-12-18 | 2013-12-18 | Continuous long glass fiber reinforced polyester produces with infiltrated with molten metal device and wetting method |
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| CN201310698886.7A CN103660071B (en) | 2013-12-18 | 2013-12-18 | Continuous long glass fiber reinforced polyester produces with infiltrated with molten metal device and wetting method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104723576A (en) * | 2015-03-10 | 2015-06-24 | 北京化工大学 | Forming device and forming method of continuous fiber reinforced thermoplastic resin preimpregnation sheet material |
| CN113321867A (en) * | 2020-08-18 | 2021-08-31 | 山东玻纤集团股份有限公司 | Preparation method of composite glass fiber |
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| US3730678A (en) * | 1967-09-06 | 1973-05-01 | Burlington Industries Inc | Process for treating textile materials |
| CN1037869A (en) * | 1988-04-19 | 1989-12-13 | 多纳德·E·布格 | Has the hull that extends fore and controllable air cushion air |
| CN101338051A (en) * | 2008-08-08 | 2009-01-07 | 苏州工业园区和昌电器有限公司 | Long glass fiber reinforced polypropylene material and preparation thereof |
| CN202344835U (en) * | 2011-10-16 | 2012-07-25 | 上海杰事杰新材料(集团)股份有限公司 | Impregnation tension roller combination device |
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2013
- 2013-12-18 CN CN201310698886.7A patent/CN103660071B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3730678A (en) * | 1967-09-06 | 1973-05-01 | Burlington Industries Inc | Process for treating textile materials |
| CN1037869A (en) * | 1988-04-19 | 1989-12-13 | 多纳德·E·布格 | Has the hull that extends fore and controllable air cushion air |
| CN101338051A (en) * | 2008-08-08 | 2009-01-07 | 苏州工业园区和昌电器有限公司 | Long glass fiber reinforced polypropylene material and preparation thereof |
| CN202344835U (en) * | 2011-10-16 | 2012-07-25 | 上海杰事杰新材料(集团)股份有限公司 | Impregnation tension roller combination device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104723576A (en) * | 2015-03-10 | 2015-06-24 | 北京化工大学 | Forming device and forming method of continuous fiber reinforced thermoplastic resin preimpregnation sheet material |
| CN113321867A (en) * | 2020-08-18 | 2021-08-31 | 山东玻纤集团股份有限公司 | Preparation method of composite glass fiber |
| CN113321867B (en) * | 2020-08-18 | 2021-12-24 | 山东玻纤集团股份有限公司 | Preparation method of composite glass fiber |
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Effective date of registration: 20180428 Address after: 201107 Shanghai Minhang District Ji Gao Road No. 1399, 1 Patentee after: SHANGHAI RIZHISHENG TECHNOLOGY CO., LTD. Address before: No. 3078 Hu min Road, Minhang District, Shanghai Patentee before: Rizhisheng New Technology Development Co., Ltd., Shanghai |
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