CN103073782A - Automobile instrument framework material and manufacturing method thereof - Google Patents
Automobile instrument framework material and manufacturing method thereof Download PDFInfo
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- CN103073782A CN103073782A CN 201110326778 CN201110326778A CN103073782A CN 103073782 A CN103073782 A CN 103073782A CN 201110326778 CN201110326778 CN 201110326778 CN 201110326778 A CN201110326778 A CN 201110326778A CN 103073782 A CN103073782 A CN 103073782A
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Abstract
The invention discloses an automobile instrument framework material and a manufacturing method thereof, belonging to the technical field of high-molecular materials. The automobile instrument framework material comprises, by weight, 45 to 68% of a thermoplastic resin, 30 to 50% of a continuous fiber, 2 to 3% of a compatilizer, 0 to 1% of a lubricant and 0 to 1% of an anti-oxidant. The manufacturing method for the material comprises the following steps: blending all the above-mentioned raw materials except the continuous fiber in proportion; carrying out plasticizing and fusing; allowing the plasticized and fused raw materials to form a polymer film through a sheeting die; introducing the continuous fiber having undergone preheating and dispersing into the top end of the polymer film to join in the film and allowing the continuous fiber and the polymer film to enter into a double-screw extruder together, wherein the continuous fiber is cut by screws and is then gently mixed with a premolten polymer; and directly delivering the premolten polymer into a pressing die of an automobile instrument framework for molding or pushing and pressing the premolten polymer into an injection mold of the automobile instrument framework for molding. The method provided by the invention has the advantages of low production cost and a short molding period; and a prepared automobile instrument framework has high rigidity and good impact resistance.
Description
Technical field
The invention belongs to technical field of polymer materials, relate to a kind of automobile instrument framework material and manufacture method thereof.
Background technology
Fascia is the carrier of many operating functions such as sound equipment, air-conditioning, light, is the important component part of automotive trim.In order to ensure the various instrument that support and part can run at high speed and vibrational state under work, instrument board framework must have enough rigidity, working at a high speed and under the state of vibration to support its appended part, needing simultaneously to have preferably energy absorption capacity to make it reduce when meeting accident that external force aligns, copilot's impact.Meanwhile, for comfortable and aesthetic requirement, the feel of dashboard, color and luster and tone etc. also are subject to people's attention day by day.Framework material commonly used mainly contains the materials such as SMA/GF, PC/ABS, MPPO/GF, PP/GF, GMT.
Long fiber reinforced thermoplastic composites (Long-Fiber Reinforced Thermoplastic), the series of advantages such as have that specific tenacity is high, specific rigidity is large, material property can design, the moulding cost is low and being paid close attention to by people.
Summary of the invention
The defective that exists in order to overcome prior art the purpose of this invention is to provide a kind of excellent property, online the automobile instrument framework material of straight forming.
Another object of the present invention provides a kind of manufacture method of above-mentioned automobile instrument framework material.
Technical scheme of the present invention is as follows:
The invention provides a kind of automobile instrument framework material, this automobile instrument framework material is made by the component that comprises following weight percent:
Thermoplastic resin 45～68%,
Continuous fibre 30～50%,
Compatilizer 2～3%,
Lubricant 0～1%,
Oxidation inhibitor 0～1%.
Described thermoplastic resin is selected from one or more the material in polyolefine or other resins for universal use; Wherein: polyolefine further is selected from one or more the material in homo-polypropylene, Co-polypropylene or the polyethylene; Other resins for universal use further are selected from one or more the material in polyvinyl chloride, acrylonitrile-butadiene-styrene copolymer, the polystyrene
Described continuous fibre is selected from one or more the material in inorganic fibre or the organic fibre; Wherein: inorganic fibre further is selected from one or more the material in glass fibre, boron fibre, carbon fiber or the basalt fibre; Organic fibre further is selected from one or more the material in nylon 66 fiber, Kafra fiber, polyphenylene sulfide fibre or the pet fiber.
Described compatilizer is selected from one or more the material in maleic anhydride, glycidyl methacrylate or acrylic acid grafts or the multipolymer.
Described lubricant is selected from one or more the material in stearic acid, Zinic stearas, calcium stearate, paraffin, Poly Propylene Wax, polyethylene wax or the amide waxe.
Described oxidation inhibitor is selected from one or more the material in Hinered phenols, hindered amines, phosphorous acid ester or the thioether kind antioxidant, preferred antioxidant 1010, antioxidant 1076, irgasfos 168 or thio-2 acid 2 stearyl ester (oxidation inhibitor DSTDP).
The present invention also provides a kind of manufacture method of above-mentioned automobile instrument framework material, and the method may further comprise the steps:
It is 45～68% thermoplastic resin with weight percent, weight percent is 2～3% compatilizer, weight percent is that 0～1% lubricant and weight percent are 0～1% oxidation inhibitor, be mixed by plasticizing, melting, form polymeric film by a sheeting die, simultaneously, weight percent is 30～50% continuous fibre through preheating, being introduced in the top of polymeric film and film behind the dispersion converges and together enters in the twin screw extruder, continuous fibre mildly is mixed in the polymkeric substance of fritting via after the screw rod cutting, then directly is sent to the injection molding moulding of moulding in the compacting tool set of automobile instrument framework or pushing admission car instrument board framework.
The present invention compares with prior art, has the following advantages and beneficial effect:
1, excellent combination property of the present invention: long fiber reinforced thermoplastic composites has the characteristics such as high strength, high rigidity, shock-resistant, good heat resistance, make the instrument board framework after the moulding have very high rigidity and impact resistance, its good thermotolerance has also satisfied the requirement of fascia thermal ageing.
2, cost of the present invention is low: the online straight forming of long fiber reinforced thermoplastic composites is a kind of Technology of online direct production goods, omitted half-finished intermediate steps, greatly shortened the production cycle, the massive article of this explained hereafter is than the production cost low 20%～50% of common two-step approach.
3, product of the present invention is attractive in appearance: the LFT-D production technique is easy because of its moulding, and the handiness of appearance design is high, and various functions that can easily integrated instrument panel adapts to the requirement of various.
4, directly mold pressing or injection molding of the present invention, production cost is low, shaping cycle is short, and the automobile instrument framework of making has the characteristics such as rigidity is high, shock-resistance good, cost is low.
Embodiment
The present invention is further illustrated below in conjunction with embodiment.
Embodiment 1
Homo-polypropylene 56%, maleic anhydride inoculated polypropylene 3%, antioxidant 1010 0.2%, irgasfos 168 0.3%, lubricant amide waxe 0.5% is plastifying fusion under 180～230 ℃ of temperature condition, then form the homo-polypropylene film by a sheeting die, simultaneously, continuous glass fibre is in the process preheating, being introduced in the top of homo-polypropylene film and film behind the dispersion converges and together enters in the twin screw extruder, the temperature range of twin screw extruder setting is 190～210 ℃, and to make glass fibre shared weight ratio in finished product by control glass fibre number of share of stock be 40%, continuous glass fibre mildly is mixed in the homo-polypropylene of fritting via after the screw rod cutting, then directly is sent to the injection molding moulding of moulding in the compacting tool set of automobile instrument framework or pushing admission car instrument board framework.The performance test results sees Table 1, and testing standard is ASTM.As can be seen from Table 1, instrument board framework material of the present invention has high strength, high rigidity, the characteristics such as shock-resistant, and the instrument board framework after the moulding has very high rigidity and impact resistance.
Table 1
| Embodiment 1 | |
| Tensile strength (MPa) | 122 |
| Flexural strength (MPa) | 179 |
| Modulus in flexure (MPa) | 7278 |
| Socle girder notched Izod impact strength (kJ/m 2) | 36 |
Embodiment 2
Co-polypropylene 46%, glycidyl methacrylate graft polypropylene 3%, lubricant polyethylene wax 1% is plastifying fusion under 180～200 ℃ of temperature condition, then form the poly-polypropylene film of copolymerization by a sheeting die, simultaneously, pet fiber is in the process preheating continuously, being introduced in the top of Co-polypropylene film and film behind the dispersion converges and together enters in the twin screw extruder, the temperature range of twin screw extruder setting is 180～200 ℃, and to make pet fiber shared weight ratio in finished product by control fiber number of share of stock be 50%, continuously pet fiber mildly is mixed in the Co-polypropylene of fritting after via the screw rod cutting, then directly is sent to the injection molding moulding of moulding in the compacting tool set of automobile instrument framework or pushing admission car instrument board framework.
Embodiment 3
Acrylonitrile-butadiene-styrene (ABS) 67%, styrene-maleic anhydride copolymer 2%, antioxidant 1076 0.4%, irgasfos 168 0.6% is plastifying fusion under 210～250 ℃ of temperature condition, then form the acrylonitrile-butadiene-styrene (ABS) film by a sheeting die, simultaneously, continuous basalt fiber is in the process preheating, being introduced in the top of acrylonitrile-butadiene-styrene (ABS) film and film behind the dispersion converges and together enters in the twin screw extruder, the temperature range of twin screw extruder setting is 220～230 ℃, and to make basalt fibre shared weight ratio in finished product by control fiber number of share of stock be 30%, continuous basalt fiber mildly is mixed in the acrylonitrile-butadiene-styrene (ABS) of fritting via after the screw rod cutting, then directly is sent to the injection molding moulding of moulding in the compacting tool set of automobile instrument framework or pushing admission car instrument board framework.
The above-mentioned description to embodiment is can understand and apply the invention for ease of those skilled in the art.The person skilled in the art obviously can easily make various modifications to these embodiment, and needn't pass through performing creative labour being applied in the General Principle of this explanation among other embodiment.Therefore, the invention is not restricted to the embodiment here, those skilled in the art are according to announcement of the present invention, and not breaking away from the improvement that category of the present invention makes and revise all should be within protection scope of the present invention.
Claims (7)
1. automobile instrument framework material, it is characterized in that: this automobile instrument framework material is made by the component that comprises following weight percent:
Thermoplastic resin 45～68%,
Continuous fibre 30～50%,
Compatilizer 2～3%,
Lubricant 0～1%,
Oxidation inhibitor 0～1%.
2. automobile instrument framework material according to claim 1 is characterized in that: described thermoplastic resin is selected from one or more the material in polyolefine or other resins for universal use; Wherein: polyolefine further is selected from one or more the material in homo-polypropylene, Co-polypropylene or the polyethylene; Other resins for universal use further are selected from one or more the material in polyvinyl chloride, acrylonitrile-butadiene-styrene copolymer, the polystyrene.
3. automobile instrument framework material according to claim 1 is characterized in that: described continuous fibre is selected from one or more the material in inorganic fibre or the organic fibre; Wherein: inorganic fibre further is selected from one or more the material in glass fibre, boron fibre, carbon fiber or the basalt fibre; Organic fibre further is selected from one or more the material in nylon 66 fiber, Kafra fiber, polyphenylene sulfide fibre or the pet fiber.
4. automobile instrument framework material according to claim 1 is characterized in that: described compatilizer is selected from one or more the material in maleic anhydride, glycidyl methacrylate or acrylic acid grafts or the multipolymer.
5. automobile instrument framework material according to claim 1 is characterized in that: described lubricant is selected from one or more the material in stearic acid, Zinic stearas, calcium stearate, paraffin, Poly Propylene Wax, polyethylene wax or the amide waxe.
6. automobile instrument framework material according to claim 1 is characterized in that: described oxidation inhibitor is selected from one or more the material in Hinered phenols, hindered amines, phosphorous acid ester or the thioether kind antioxidant; Preferred antioxidant 1010, antioxidant 1076, irgasfos 168 or thio-2 acid 2 stearyl ester.
7. the manufacture method of the arbitrary described automobile instrument framework material of claim 1 to 6, it is characterized in that: the method may further comprise the steps:
It is 45～68% thermoplastic resin with weight percent, weight percent is 2～3% compatilizer, weight percent is that 0～1% lubricant and weight percent are 0～1% oxidation inhibitor, be mixed by plasticizing, melting, form polymeric film by a sheeting die, simultaneously, weight percent is 30～50% continuous fibre through preheating, being introduced in the top of polymeric film and film behind the dispersion converges and together enters in the twin screw extruder, continuous fibre is mixed in the polymkeric substance of fritting via after the screw rod cutting, then directly is sent to the injection molding moulding of moulding in the compacting tool set of automobile instrument framework or pushing admission car instrument board framework.
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| CN103554656A (en) * | 2013-10-14 | 2014-02-05 | 上海俊尓新材料有限公司 | Polypropylene composite material used for preparation of automobile bottom guard board by LFT-D technology |
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| CN104292737A (en) * | 2014-09-26 | 2015-01-21 | 苏州博利迈新材料科技有限公司 | Shock-resistant automobile instrument board material and preparation method thereof |
| CN104292640A (en) * | 2014-10-21 | 2015-01-21 | 上海交通大学 | Continuous carbon fiber reinforced polypropylene composite material with high wetting property and preparation method of continuous carbon fiber reinforced polypropylene composite material |
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| CN105482294A (en) * | 2015-12-15 | 2016-04-13 | 苏州鑫德杰电子有限公司 | Impact-resistant polyvinyl chloride composite used for instruments and preparation method of impact-resistant polyvinyl chloride composite |
| CN106009246A (en) * | 2015-04-01 | 2016-10-12 | 合肥杰事杰新材料股份有限公司 | Organic fiber reinforced polypropylene composite material and LFT-D forming process thereof |
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