CN101886735A - Fiber reinforced thermoplastics composite material section bar and molding technology - Google Patents
Fiber reinforced thermoplastics composite material section bar and molding technology Download PDFInfo
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- CN101886735A CN101886735A CN 200910015320 CN200910015320A CN101886735A CN 101886735 A CN101886735 A CN 101886735A CN 200910015320 CN200910015320 CN 200910015320 CN 200910015320 A CN200910015320 A CN 200910015320A CN 101886735 A CN101886735 A CN 101886735A
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- 239000000835 fiber Substances 0.000 title claims abstract description 42
- 238000000465 moulding Methods 0.000 title claims abstract description 19
- 239000002131 composite material Substances 0.000 title claims abstract description 14
- 229920001169 thermoplastic Polymers 0.000 title claims abstract description 7
- 239000004416 thermosoftening plastic Substances 0.000 title claims abstract description 7
- 238000005516 engineering process Methods 0.000 title abstract description 5
- 239000000463 material Substances 0.000 claims abstract description 45
- 238000001816 cooling Methods 0.000 claims abstract description 24
- 239000003365 glass fiber Substances 0.000 claims abstract description 22
- 238000000034 method Methods 0.000 claims abstract description 14
- 230000008569 process Effects 0.000 claims abstract description 11
- 238000007598 dipping method Methods 0.000 claims abstract description 6
- 239000004744 fabric Substances 0.000 claims abstract description 6
- 238000003825 pressing Methods 0.000 claims abstract description 6
- 229920006267 polyester film Polymers 0.000 claims description 18
- 238000007493 shaping process Methods 0.000 claims description 17
- 239000011347 resin Substances 0.000 claims description 16
- 229920005989 resin Polymers 0.000 claims description 16
- 238000001514 detection method Methods 0.000 claims description 10
- 238000009940 knitting Methods 0.000 claims description 10
- 230000004927 fusion Effects 0.000 claims description 9
- 239000000945 filler Substances 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 6
- 238000002360 preparation method Methods 0.000 claims description 6
- 238000009966 trimming Methods 0.000 claims description 6
- 229940124543 ultraviolet light absorber Drugs 0.000 claims description 6
- 239000006097 ultraviolet radiation absorber Substances 0.000 claims description 6
- 238000009954 braiding Methods 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 claims description 5
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 claims description 4
- 239000002253 acid Substances 0.000 claims description 4
- 230000008859 change Effects 0.000 claims description 4
- 239000007822 coupling agent Substances 0.000 claims description 4
- 238000005520 cutting process Methods 0.000 claims description 4
- 150000003949 imides Chemical class 0.000 claims description 4
- 239000002245 particle Substances 0.000 claims description 4
- 239000002994 raw material Substances 0.000 claims description 4
- 229910000077 silane Inorganic materials 0.000 claims description 4
- KGRVJHAUYBGFFP-UHFFFAOYSA-N 2,2'-Methylenebis(4-methyl-6-tert-butylphenol) Chemical compound CC(C)(C)C1=CC(C)=CC(CC=2C(=C(C=C(C)C=2)C(C)(C)C)O)=C1O KGRVJHAUYBGFFP-UHFFFAOYSA-N 0.000 claims description 3
- 239000003963 antioxidant agent Substances 0.000 claims description 3
- 230000003078 antioxidant effect Effects 0.000 claims description 3
- 239000003292 glue Substances 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 229920001225 polyester resin Polymers 0.000 claims description 3
- 239000004645 polyester resin Substances 0.000 claims description 3
- 238000003892 spreading Methods 0.000 claims description 3
- 230000007480 spreading Effects 0.000 claims description 3
- 239000000654 additive Substances 0.000 claims description 2
- 230000000996 additive effect Effects 0.000 claims description 2
- 238000001035 drying Methods 0.000 claims description 2
- 230000008030 elimination Effects 0.000 claims description 2
- 238000003379 elimination reaction Methods 0.000 claims description 2
- 238000011084 recovery Methods 0.000 claims description 2
- 150000001875 compounds Chemical class 0.000 claims 2
- 238000009941 weaving Methods 0.000 abstract 3
- 238000005299 abrasion Methods 0.000 abstract 2
- 239000011152 fibreglass Substances 0.000 abstract 1
- 238000010008 shearing Methods 0.000 abstract 1
- 238000009740 moulding (composite fabrication) Methods 0.000 description 18
- 229920000178 Acrylic resin Polymers 0.000 description 3
- 239000004925 Acrylic resin Substances 0.000 description 3
- 230000035882 stress Effects 0.000 description 3
- 239000011199 continuous fiber reinforced thermoplastic Substances 0.000 description 2
- 239000000155 melt Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000000048 melt cooling Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- -1 polypropylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Reinforced Plastic Materials (AREA)
- Moulding By Coating Moulds (AREA)
Abstract
The invention discloses a fiber reinforced thermoplastics composite material section bar relating to a new molding technology for producing continuous fiber thermoplastics composite material section bar. Glass fiber yarn, fiber glass cloth and a glass fiber mat form a fiber preimpregnating board in a fiber laying and weaving area (1) by a beam concentration weaving device. The fiber preimpregnating board which is in beam concentration weaving forms a composite blank board after fully rolled and infiltrated by a material pressing roller in a constant-temperature gum dipping slot. The composite blank plate is successively subject to pressure preforming (3) and pressure forming (4), is cooled by a cooling device to form continuous finished product section bar and is cut into required finished product section bar by a board shearing device. The product of the invention can automatically determine material and proportioning according to different requirements of the product, and burdening degree of freedom is high; in the molding process, the product of the invention has extra low abrasion degree on fiber, and all glass fiber in the product is continuous filament; according to different using requirements, the fiber is laid to be designed and adjusted to ensure that the final finished product has excellent mechanical property and appearance; and the product has smaller abrasion on molding equipment and is easier to recycle and reuse the recycled scrap.
Description
Technical field
The present invention relates to a kind of production continuous fiber thermoplastics composite material section bar forming technique.
Background technique
Making continuous fiber reinforced thermoplastic composite material section bar product at present mainly is to adopt pultrude process, pultrusion can be described as topnotch automation and the most suitable quantity-produced technology in the composite material machining machine, so long as the fixing workpiece of sectional shape, almost mode that all can pultrusion is processed.But this technology is subjected to the restriction of following shortcoming, and is poor in the melt temperature current downflow as the melt viscosity height, and the mold temperature height needs accurately control cooling, and it is solid-state that matrix at room temperature is, and shrinkage is big during the melt cooling, and the quality of product fluctuation is big etc.
In addition, pultrude process is for producing the bigger product of cross-sectional width, and during as production sheet material series products, shown above-mentioned shortcoming is more obvious.
Summary of the invention
At the deficiencies in the prior art, the invention provides a kind of production continuous fiber reinforced thermoplastic composite material section bar and forming process, can simply directly prepare section bar with constant cross-section shape.Especially for the product that adopts pultrude process to produce, have more remarkable advantages as the sheet material series products with broad cross section.
The technical solution adopted for the present invention to solve the technical problems is that glass fiber yarn, glass fiber cloth, glass fiber mat are formed the fiber prepreg by the boundling knitting apparatus in fiber placement knitting zone (1).The fiber prepreg that boundling weaves forms composite blank after the abundant roll-in of material pressing roller is soaked in the constant temperature steeping vat.Composite blank forms continuous finished section bar successively by pressure pre-shaping (3), pressure forming (4) after the cooling unit cooling, be cut into the finished section bar that needs through cutting device at last.
Indication raw material components of the present invention and weight proportion are: polyester resin 50～65%, glass fibre 28～35%, silane type coupling agent particle 0.5～2.0%, span acid imide 0.5%～1%, ultraviolet light absorber 0.05～0.1%, antioxidant 1～2%, filler 5～8%, and its moulding process comprises:
1, resin material fusion premix: put into resin premixed device after the resin that drying is good, additive, ultraviolet light absorber, antioxidant, filler etc. mix in proportion and carry out the fusion premix.The fusion feed liquid that mixes is transported in the constant temperature steeping vat through feeding device, and keeps constant temperature steeping vat temperature in 180 ℃～200 ℃ scopes, makes the resin feed liquid remain on molten state, so that the dipping of fiber prepreg.
2, fiber equipment of preimpregnated material manufacture: glass fiber yarn, cloth, felt become the fiber prepreg by boundling knitting apparatus braiding lay after treatment.According to the required mechanical property requirements of section bar of preparation, lay, fiber layer thickness, the fibre content of fiber are adjusted by the boundling knitting apparatus.
3, the pressure profit is soaked: will weave the good fiber prepreg of lay and enter in the constant temperature steeping vat by the guide wheel guiding, and remove unnecessary glue by spreading roller and form blank behind material pressing roller roll-in dipping (2).
4, blank finishing and temperature regulation: the blank of making is by auxiliary traction/precompressed/trimming apparatus, after temperature detection is carried out in the temperature detection, by temperature-adjusting device blank is carried out temperature regulation, keep blank temperature to keep the blanket temperature in 120 ℃～150 ℃ scopes.
5, polyester film lay: regulate the blank trim, by the polyester film laying device in the blank both sides each lay one deck polyester film.
6, pre-shaping: the blanket of the good polyester film of lay maintains the temperature in 120 ℃～130 ℃ scopes, is dull and stereotyped through the preliminary roll-forming of pre-shaping pressure roller.At pre-shaping (3) intermediate section section bar is carried out temperature regulation and stress elimination, the sheet material temperature is remained in 100 ℃～110 ℃ scopes, and eliminate part sheet material stress.
7, moulding: is finished product sheet material through preformed sheet material at pressure forming cooling zone (4) final cooling forming.Keep preformed sheet material temperature in 80 ℃～90 ℃ scopes, adopt the pressure forming roll-in system identical with sheet material demand sectional shape, and final molding.According to the difference of required section bar, change difform pressure forming roller, have the section bar of constant cross-section with preparation, as section bars such as L type, round, I shapes, and flat board, corrugated sheet, trapezoidal plate and surface have the sheet material of ornamental decorative pattern.
8, cooling and shaping: the section bar of hygrosensor after to moulding carries out temperature detection, and the section bar of control cooling unit after to moulding carries out cooling and shaping.
9, film reclaims: the polyester film of recovery reclaims by the polyester film recovering device.
10, finished product is cut out: cooled section bar is cut out the finished section bar that forms the Len req size through after the finishing of traction/side cut/trimming apparatus by cutting device.
The invention has the beneficial effects as follows that product can be according to the different needs of goods, definite voluntarily raw material and proportioning, batching degrees of freedom height; The degree of wear to fiber in the forming process is extremely low, and glass fibre all is a continuous fiber in the goods, and can design adjusting to fiber placement according to the usage requirement difference, makes end article have utmost point excellent mechanical property and outward appearance; To the forming equipment wearing and tearing still less; The recycling of waste material is reclaimed in easier realization.
Description of drawings
Below in conjunction with drawings and Examples to further detailed explanation of the present invention.
Fig. 1 is a flow sheet of the present invention.
Finished product is cut out in 1 collection of filaments lay braiding among the figure, 2 pressure infiltrated with molten metal, 3 roll-in pre-shaping, 4 pressure formings cooling, 5.
Embodiment
To produce 1000kg glass fiber reinforced polypropylene resin flat sheet is example, and its raw material components proportioning is: acrylic resin 60%, glass fibre 30%, silane type coupling agent particle 2%, span acid imide 0.8%, ultraviolet light absorber 0.1%, antioxidant 1%, filler 8%; Concrete technology comprises:
1, resin material fusion premix: put into resin premixed device after at first will mixing according to a certain percentage through acrylic resin 600kg, silane type coupling agent particle 20kg, span acid imide 8kg, ultraviolet light absorber 1kg, antioxidant 10kg, the filler 80kg of super-dry and carry out the fusion premix by said ratio.The fusion feed liquid that mixes is transported in the constant temperature steeping vat through feeding device, and keeps constant temperature steeping vat temperature about 190 ± 5 ℃, makes the resin feed liquid remain on molten state, so that the dipping of fibre preforms plate.
Constant temperature steeping vat temperature is made corresponding change according to selected resin material is different, both need make resin mixture remain on molten state, need guarantee that also temperature can not be too high and make resin aging, influences end properties.
2, fiber pre-impregnated sheet preparation: pretreated glass fiber yarn, glass fiber cloth, glass fiber mat are total to 300kg, become the continuous fiber pre-impregnated sheet by pre-design requirement braiding lay by boundling knitting apparatus (1).According to the required mechanical property requirements of sheet material of preparation, lay, fiber layer thickness, the fibre content of fiber are adjusted by the boundling knitting apparatus.
3, pressure soaks into: the good fiber pre-impregnated sheet of braiding lay enters the constant temperature steeping vat by guide wheel, but removes unnecessary glue by spreading roller and form blanket after material pressing roller pressure soaks into (2).
4, blanket finishing and temperature regulation: the blanket of making is by auxiliary traction/precompressed/trimming apparatus, and hauling speed is 1m/min.The hauling speed conditions such as density of arranging according to polyester resin kind, glass fibre pre-impregnated sheet thickness, glass fibre are regulated setting.After precompressed, trimmed sized glass fibres blanket carry out temperature detection by temperature detection device, by temperature-adjusting device blanket is carried out temperature regulation, keep the blanket temperature about 140 ± 5 ℃.
5, polyester film lay: regulate the blanket trim by the polyester film laying device in the blanket both sides each lay one deck polyester film.Avoid acrylic resin in follow-up working process, to be bonded on the pressure roller.
6, pre-shaping: the blanket of the good polyester film of lay maintains the temperature at about 125 ± 5 ℃, tentatively is rolled into flat board through the pre-shaping pressure roller.For the sheet material of section form complexity, last can be replaced with the forming roll close with the sheet material sectional shape to pony press and carry out preliminary moulding roll-in.Intermediate section is provided with temperature detection device and temperature-adjusting device in pre-shaping district (3), and sheet material is carried out temperature regulation, and the sheet material temperature is remained on about 105 ± 5 ℃, and eliminates part sheet material stress.
7, moulding: is finished product sheet material through preformed sheet material at pressure forming cooling zone (4) final cooling forming.Keep preformed sheet material temperature about 85 ± 5 ℃, adopt the pressure forming roll-in system identical with sheet material demand sectional shape, and final molding.According to the difference of required sheet material, change difform pressure forming roller and can prepare sheet material or the surperficial dalle that has consecutive identical cross section as corrugated, rectangle, trapezoidal etc. with decorative pattern.
8, cooling and shaping: hygrosensor carries out temperature detection to sheet forming, and the control cooling unit is to the sheet forming cooling of lowering the temperature, and finished product is finalized the design after sheet material cools off fully.During cooling, need to determine cooling rate, in order to avoid influence finished product outward appearance, size according to conditions such as resin kind, sheet metal thickness, finished product shrinkages.
9, film reclaims: the polyester film of finished product sheet material both sides, carry out recycling by the polyester film recovering device.
10, finished product is cut out: cooled sheet material forms the finished product sheet material of Len req size through after the finishing of traction/side cut/trimming apparatus under the cutting out of shear device (5).
Claims (2)
1. a fiber reinforced thermoplastics composite material section bar forms fiber pre-impregnated sheet by the boundling knitting apparatus in fiber placement knitting zone (1) with glass fiber yarn, glass fiber cloth, glass fiber mat.The fiber pre-impregnated sheet that boundling weaves forms compound blanket after the full and uniform pressure of material pressing roller soaks in the constant temperature steeping vat.Compound blanket forms continuous finished section bar successively by pressure pre-shaping (3), pressure forming (4) after the cooling unit cooling, be cut into the finished section bar that needs through the shear device at last.It is characterized in that raw material components and weight proportion are: polyester resin 50～65%, glass fibre 28～35%, silane type coupling agent particle 0.5～2.0%, span acid imide 0.5%～1%, ultraviolet light absorber 0.05～0.1%, antioxidant 1～2%, filler 5～8%.
2. fiber reinforced thermoplastics composite material section bar moulding process is characterized in that this moulding process comprises following process step:
(1) resin material fusion premix: put into resin premixed device after the resin that drying is good, additive, ultraviolet light absorber, antioxidant, filler etc. mix in proportion and carry out the fusion premix.The fusion feed liquid that mixes is transported in the constant temperature steeping vat through feeding device, and keeps constant temperature steeping vat temperature in 180 ℃～200 ℃ scopes, makes the resin feed liquid remain on molten state, so that the dipping of fiber prepreg.
(2) fiber equipment of preimpregnated material manufacture: glass fiber yarn, cloth, felt become the fiber prepreg by boundling knitting apparatus braiding lay after treatment.According to the required mechanical property requirements of section bar of preparation, lay, fiber layer thickness, the fibre content of fiber are adjusted by the boundling knitting apparatus.
(3) the pressure profit is soaked: will weave the good fiber prepreg of lay and enter in the constant temperature steeping vat by the guide wheel guiding, and remove unnecessary glue by spreading roller and form blank behind material pressing roller roll-in dipping (2).
(4) blank finishing and temperature regulation: the blank of making is by auxiliary traction/precompressed/trimming apparatus, after temperature detection is carried out in the temperature detection, by temperature-adjusting device blank is carried out temperature regulation, keep blank temperature to keep the blanket temperature in 120 ℃～150 ℃ scopes.
(5), the polyester film lay: regulate the blank trim, by the polyester film laying device in the blank both sides each lay one deck polyester film.
(6), pre-shaping: the blanket of the good polyester film of lay maintains the temperature in 120 ℃～130 ℃ scopes, is dull and stereotyped through the preliminary roll-forming of pre-shaping pressure roller.At pre-shaping (3) intermediate section section bar is carried out temperature regulation and stress elimination, the sheet material temperature is remained in 100 ℃～110 ℃ scopes, and eliminate part sheet material stress.
(7) moulding: is finished product sheet material through preformed sheet material at pressure forming cooling zone (4) final cooling forming.Keep preformed sheet material temperature in 80 ℃～90 ℃ scopes, adopt the pressure forming roll-in system identical with sheet material demand sectional shape, and final molding.According to the difference of required section bar, change difform pressure forming roller, have the section bar of constant cross-section with preparation, as section bars such as L type, round, I shapes, and flat board, corrugated sheet, trapezoidal plate and surface have the sheet material of ornamental decorative pattern.
(8) cooling and shaping: the section bar of hygrosensor after to moulding carries out temperature detection, and the section bar of control cooling unit after to moulding carries out cooling and shaping.
(9) film reclaims: the polyester film of recovery reclaims by the polyester film recovering device.
(10) finished product is cut out: cooled section bar is cut out the finished section bar that forms the Len req size through after the finishing of traction/side cut/trimming apparatus by cutting device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910015320 CN101886735B (en) | 2009-05-14 | 2009-05-14 | Fiber reinforced thermoplastics composite material section bar and molding technology |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910015320 CN101886735B (en) | 2009-05-14 | 2009-05-14 | Fiber reinforced thermoplastics composite material section bar and molding technology |
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| Publication Number | Publication Date |
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| CN101886735A true CN101886735A (en) | 2010-11-17 |
| CN101886735B CN101886735B (en) | 2013-01-16 |
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| CN102211409A (en) * | 2011-05-27 | 2011-10-12 | 常州市华星新材料科技有限公司 | Continuous fiber base cloth and thermoplastic resin composite board molding equipment |
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