CN102167867B - Continuous glass fiber reinforced polypropylene/nylon alloy chopped material and preparation method thereof - Google Patents
Continuous glass fiber reinforced polypropylene/nylon alloy chopped material and preparation method thereof Download PDFInfo
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- CN102167867B CN102167867B CN 201110127951 CN201110127951A CN102167867B CN 102167867 B CN102167867 B CN 102167867B CN 201110127951 CN201110127951 CN 201110127951 CN 201110127951 A CN201110127951 A CN 201110127951A CN 102167867 B CN102167867 B CN 102167867B
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Abstract
The invention discloses a continuous glass fiber reinforced polypropylene/nylon alloy chopped material, which comprises the following raw material components in percentage by weight: 4.2 to 82.8 percent of polypropylene, 5 to 17.3 percent of nylon, 10 to 60 percent of glass fiber, 0.1 to 1 percent of antioxidant, 2 to 15 percent of compatilizer and 0.1 to 2.5 percent of glass fiber dispersant, wherein the length of particles of the continuous glass fiber reinforced polypropylene/nylon alloy chopped material is 3 to 7mm. The preparation method comprises the following steps of: uniformly mixing the polypropylene, the nylon and an auxiliary agent; milling in an extruder to form alloy and injecting into an extrusion die head; introducing the glass fiber into the extrusion die head, forcibly dispersing, fully contacting with polypropylene/nylon alloy melt and soaking; extruding through an extrusion die; and cooling, air-drying, drawing, and cutting into particles to obtain a product. The product has the characteristics of high strength, high modulus, high toughness, extremely low creep deformation, low warping deformation and the like.
Description
Technical field
The invention provides the chopped material of a kind of continuous glass fiber reinforced polypropylene/nylon alloy and preparation method, belong to the high molecule alloy material field.
Background technology
Long glass fiber reinforced polypropylene material has high strength, high-modulus, high impact, extremely low creep and buckling deformation, excellent dynamic fatigue resistance can wait outstanding advantages, because its cost performance is high, is widely used in the fields such as automobile, electromechanics, building as the important structure part.Extensively adopt in the industry the pultrusion granulation process of melt impregnation to produce long glass fiber-reinforced polypropylene, staple length and the particle of the obtained long glass fiber reinforced polypropylene particle of this method are isometric, are about 10-25mm.This particle adopts the injection moulding article of manufacture, must use special molding device and technique, just can make glass in goods, keep desirable length, bring into play its effect, simultaneously because particle diameter is longer, " particle bridge formation " appears easily thus blanking is not smooth, and then affect production efficiency, after screw in injection molding machine was sheared, the actual glass staple length kept very little.
The patent No.: 200610070280.9, prepared particle length is 11～35mm in " preparation method of continuous long glass fiber reinforced profax resin granular material ", needs special equipment and process, just can give full play to the enhancement of glass in polypropylene matrix.
The short glass fiber reinforced polypropylene material requires low, easy to process to moulding process, but intensity, toughness, resistance to fatigue is difficult to satisfy the strict demand of structural part.
Long glass fibre reinforced nylon material is compared with common short glass fiber Reinforced Nylon material, and intensity, modulus, toughness, creep resistant and wear-resisting, thermotolerance etc. all are improved, thereby have further widened its range of application.The roving glass fiber Reinforced Nylon has huge development potentiality in fields such as automobile, machinery, electrical equipment, military projects, and available its made the bumper engine every the cover of making an uproar, chair framework, headlight, fan, radiator grid, panel board carriage etc.But roving glass fiber Reinforced Nylon materials processing difficulty is large, and nylon material is difficult for infiltrating in glass fibre.
Summary of the invention
The invention provides chopped material of a kind of continuous glass fiber reinforced polypropylene/nylon alloy and preparation method thereof.The chopped material of described continuous glass fiber reinforced polypropylene/nylon alloy, excellent combination property and easy to process, particle length is at 3～7 millimeters, need not special equipment and process, make glass in goods, keep original length, be uniformly dispersed, can give full play to its effect, and the phenomenon of " particle bridge formation " can not occur, and than the long glass fiber-reinforced polypropylene superior performance of length at the 12-30 mm length.
The present invention adopts following technical scheme for achieving the above object:
The chopped material of a kind of continuous glass fiber reinforced polypropylene/nylon alloy is characterized in that: the mass percent of its each component of constitutive material is:
The chopped material of described continuous glass fiber reinforced polypropylene/nylon alloy is characterized in that: described polypropylene is homo-polypropylene, Co-polypropylene a kind of or their mixture.
The chopped material of described continuous glass fiber reinforced polypropylene/nylon alloy is characterized in that: described nylon is PA6.
The chopped material of described continuous glass fiber reinforced polypropylene/nylon alloy is characterized in that: described continuous glass fibre is continuous non-twist glass roving, and Fibre diameter is 12-25 μ m.
The chopped material of described continuous glass fiber reinforced polypropylene/nylon alloy is characterized in that: described oxidation inhibitor is selected from a kind of or its mixture in the thermo-stabilizers such as Hinered phenols, phosphorous acid esters.
The chopped material of described continuous glass fiber reinforced polypropylene/nylon alloy is characterized in that: described compatilizer is one or more mixtures among maleic anhydride graft PP, maleic anhydride graft POE, maleic anhydride graft PE, maleic anhydride graft EPDM, the maleic anhydride graft SEBS.
The chopped material of described continuous glass fiber reinforced polypropylene/nylon alloy is characterized in that: described glass dispersion agent is selected from one or more mixtures in low molecular hydrocarbon, metal soap, stearic acid, amides, the silicone processing aid.
The chopped material preparation method of described continuous glass fiber reinforced polypropylene/nylon alloy is characterized in that comprising following steps:
(1) polypropylene, nylon, compatilizer, oxidation inhibitor and the glass dispersion agent with metering joins and makes it in the mixer fully to mix;
(2) loading hopper of said mixture from forcing machine added, material behind the abundant fusion plastification formation PP/PA alloy, is delivered to the extrusion die from die extrusion in forcing machine, and the plasticization temperature in the machine barrel is 210-260 ℃;
(3) continuous glass fibre is after thermal pretreatment, be incorporated in the extrusion die, after disperseing the roller Forced Dispersion, contact with the PP/PA alloy mixture of melting, fully flooded, then involve from the mouth mould, at last cooling, pelletizing both got the chopped material of continuous glass fiber reinforced polypropylene/nylon alloy.
In the chopped material preparation method of continuous glass fiber reinforced polypropylene/nylon alloy, the length of gained continuous glass fiber reinforced polypropylene/nylon alloy material particle is 3-7mm, the granule interior glass fibre length also is the 3-7 millimeter, be continuous, parallel, fiber is well by coating that plastics flood.
Beneficial effect of the present invention:
1, product is chopped granules composite material: adopt simple, practical method to prepare the chopped material of continuous glass fiber reinforced polypropylene/nylon alloy, the particle length of gained continuous glass fiber reinforced polypropylene/nylon alloy material is 3-7mm, and the granule interior glass fibre length also is the 3-7 millimeter.
2, technique is simple, and equipment cost is low, and production efficiency is high: the chopped material of the prepared continuous glass fiber reinforced polypropylene/nylon alloy of the present invention, do not need complicated moulding process, can finish injection moulding on common injection machine, because its blanking is easy, production efficiency is higher.
3, the mechanical property of product is remarkable: because fiber is continuous, parallel in particle, the length of fiber and particle is identical, fiber is well by dipping that plastics coat, so particle can keep the length of fiber well in injection moulding process, produces the product of mechanical property brilliance; The particle length that adopts the PP/PA alloy system only is that 3 millimeters material property is the superior performance of the long glass fiber-reinforced polypropylene of 12-30 millimeter than particle length.And the short fiber reinforced plastics particle of commonly using at present, fiber distributes in plastics, and length is irregular, and through after the injection moulding, fiber is shorter in the goods of production, and its reinforced effects is subject to certain restrictions.
In a word, the chopped material of continuous glass fiber reinforced polypropylene/nylon alloy that the present invention produces can satisfy the performance of high-strength structure spare to be wanted, its preparation process is simple simultaneously, production technique is controlled easily, production efficiency is higher, compares common long glass fiber reinforced polypropylene material, does not need complicated moulding process, blanking is easy, and injection moulding efficient is high.
Embodiment
Specify the present invention below in conjunction with embodiment.
Embodiment 1
Above mixture is joined in the forcing machine by loading hopper, and processing temperature is 210-260 ℃, and material behind the abundant plastifying fusion formation alloy, is injected in the extrusion die in forcing machine.30 parts of long glass fibress are after thermal pretreatment, and traction enters extrusion die, together extrude with the PP/PA alloy mixture, and cooling, pelletizing obtain the chopped material of continuous glass fiber reinforced polypropylene/nylon alloy at last.Regulate cutter distance and the pulling speed of pellet device, making plastic grain length is 3mm.
The chopped material of above-mentioned continuous glass fiber reinforced polypropylene/nylon alloy is finished injection moulding make the standard batten in common injection machine, the forming process parameter arranges as follows: injection temperature 210-260 ℃, and injection speed 30-50%, injection pressure 30-50%.
Embodiment 2
Regulate cutter distance and the pulling speed of pellet device, making plastic grain length is 5mm, and its Main physical performance sees Table 1.
Embodiment 3
Regulate cutter distance and the pulling speed of pellet device, making plastic grain length is 7mm, and its Main physical performance index see Table 1.
Table 1
Embodiment 4:
Method for making sample keeps particle length at 5 millimeters with embodiment 1.Its Main physical performance index see Table 2.
Embodiment 5:
Method for making sample keeps particle length at 6 millimeters with embodiment 1.Its Main physical performance index see Table 2.
Embodiment 6:
The processing method for making sample keeps particle length at 7 millimeters with embodiment 1.Its Main physical performance index see Table 2.
Embodiment 7:
Working method, method for making sample keep particle length at 7 millimeters with embodiment 1.Its Main physical performance index see Table 2.
Embodiment 8:
Working method, method for making sample keep particle length at 7 millimeters with embodiment 1.Its Main physical performance index see Table 2.
Add the functional agents such as tinting material, photostabilizer, static inhibitor, fire retardant in this formula system, make matrix material have individual features, protected by the present invention.
Claims (8)
1. chopped material of continuous glass fiber reinforced polypropylene/nylon alloy, it is characterized in that: the mass percent of its each component of constitutive material is:
Polypropylene 4.2-82.8%
Nylon 5-17.3%
Glass fibre 10-60%
Oxidation inhibitor 0.1-1 %
Compatilizer 2-15%
Glass dispersion agent 0.1-2.5%, described glass fibre are continuous roving, and Fibre diameter is 12-25 μ m.
2. the chopped material of continuous glass fiber reinforced polypropylene/nylon alloy according to claim 1, it is characterized in that: described polypropylene is a kind of of homo-polypropylene, Co-polypropylene or their mixture.
3. the chopped material of continuous glass fiber reinforced polypropylene/nylon alloy according to claim 1, it is characterized in that: described nylon is PA6.
4. the chopped material of described continuous glass fiber reinforced polypropylene/nylon alloy according to claim 1, it is characterized in that: described oxidation inhibitor is selected from a kind of or its mixture in Hinered phenols, the phosphorous acid ester type thermal stabilizing agent.
5. the chopped material of continuous glass fiber reinforced polypropylene/nylon alloy according to claim 1, it is characterized in that: described compatilizer is one or more mixtures among maleic anhydride graft PP, maleic anhydride graft POE, maleic anhydride graft PE, maleic anhydride graft EPDM, the maleic anhydride graft SEBS.
6. the chopped material of continuous glass fiber reinforced polypropylene/nylon alloy according to claim 1, it is characterized in that: described glass dispersion agent is selected from one or more mixtures in metal soap, stearic acid, amides, the silicone processing aid.
7. such as the chopped material preparation method of each described continuous glass fiber reinforced polypropylene/nylon alloy among the claim 1-6, it is characterized in that comprising following steps:
(1) polypropylene, nylon, compatilizer, oxidation inhibitor and the glass dispersion agent with metering joins and makes it in the mixer fully to mix;
(2) loading hopper of said mixture from forcing machine added, material is abundant fusion plastification in forcing machine, behind the formation PP/PA alloy, is delivered to the extrusion die from die extrusion, and the plasticization temperature in the machine barrel is 210-260 ℃;
(3) continuous glass fibre is after thermal pretreatment, be incorporated in the extrusion die, after disperseing the roller Forced Dispersion, contact with the PP/PA alloy of melting, fully flooded, then involve from the mouth mould, cooling, pelletizing namely get the chopped material of continuous glass fiber reinforced polypropylene/nylon alloy at last.
8. the chopped material preparation method of continuous glass fiber reinforced polypropylene/nylon alloy according to claim 7, it is characterized in that: the chopped material granule of the described continuous glass fiber reinforced polypropylene/nylon alloy of step (3), length is the 3-7 millimeter, and the granule interior glass fibre length is the 3-7 millimeter.
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| CN 201110127951 CN102167867B (en) | 2011-05-18 | 2011-05-18 | Continuous glass fiber reinforced polypropylene/nylon alloy chopped material and preparation method thereof |
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Families Citing this family (17)
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| CN103173007A (en) * | 2011-12-21 | 2013-06-26 | 上海杰事杰新材料(集团)股份有限公司 | High-performance long-fiber-reinforced nylon composite material and preparation method thereof |
| CN102731905B (en) * | 2012-05-22 | 2014-04-09 | 宁波泛龙塑料新材料有限公司 | Long glass fiber reinforced modified polypropylene and preparation method thereof |
| CN103087412B (en) * | 2013-01-18 | 2015-11-04 | 广东奇德新材料股份有限公司 | A kind of high workability glass fiber reinforced polypropylene composite material and preparation method thereof |
| CN103289375A (en) * | 2013-05-22 | 2013-09-11 | 江苏金发科技新材料有限公司 | Continuous glass fiber reinforced polypropylene-nylon composite material and preparation method thereof |
| CN103554906A (en) * | 2013-10-23 | 2014-02-05 | 华南理工大学 | Nylon 66 impregnated ingredient and method of producing long glass fiber reinforced nylon 66 aggregate by utilizing ingredient |
| CN103709512A (en) * | 2013-12-25 | 2014-04-09 | 上海金发科技发展有限公司 | Long glass fiber-reinforced polypropylene/nylon composite material and preparation method thereof |
| CN104277411A (en) * | 2014-05-27 | 2015-01-14 | 安徽宁国市高新管业有限公司 | Cable glass fiber reinforced plastic sheath material |
| CN104098837A (en) * | 2014-06-30 | 2014-10-15 | 姚文洪 | Long-fiber-reinforced kettle-inside alloy polypropylene composite material |
| CN104292624A (en) * | 2014-09-26 | 2015-01-21 | 苏州博利迈新材料科技有限公司 | Bumper and preparation method thereof |
| CN106009143A (en) * | 2016-06-12 | 2016-10-12 | 马鞍山市三川机械制造有限公司 | Car plastic component and preparation method thereof |
| CN106317629A (en) * | 2016-08-30 | 2017-01-11 | 邓利民 | PP-PA polymer alloy material and manufacturing method thereof |
| CN106188876A (en) * | 2016-08-30 | 2016-12-07 | 常州瑞杰新材料科技股份有限公司 | A kind of automotive seat PP composite material |
| CN106750960A (en) * | 2016-12-27 | 2017-05-31 | 上海普利特复合材料股份有限公司 | A kind of high-intensity high-tenacity continuous glass-fiber RPP sheet material and preparation method thereof |
| CN107033456B (en) * | 2017-04-28 | 2019-11-08 | 东华大学 | One kind is based on POSS organic-inorganic hybrid nanometer compatilizer and its preparation and application |
| CN107418050A (en) * | 2017-06-21 | 2017-12-01 | 安徽江淮汽车集团股份有限公司 | A kind of high-performance antibiosis PP PA6 composites and preparation method thereof |
| CN107200928A (en) * | 2017-07-24 | 2017-09-26 | 江苏莘翔机电有限公司 | A kind of glass fiber reinforced polypropylene nylon composite materials and preparation method thereof |
| CN108752915A (en) * | 2018-05-10 | 2018-11-06 | 句容市百事特复合材料有限公司 | A kind of long glass fiber reinforced thermoplastic material |
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| CN101418093A (en) * | 2007-10-26 | 2009-04-29 | 张发饶 | Polyethylene/nylon plastic alloy and production method thereof and compatible binder thereof |
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Address after: 231202 Anhui city of Hefei province high tech Zone Bai Yan Industrial Park East Road No. 2 Patentee after: New material Limited by Share Ltd Address before: 231202 Anhui city of Hefei province high tech Zone Bai Yan Industrial Park East Road No. 2 Patentee before: Hefei Orinko Plastics Group Co., Ltd. |
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