CN101412845A - High performance fiber reinforced nylon composite material and preparation thereof - Google Patents
High performance fiber reinforced nylon composite material and preparation thereof Download PDFInfo
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- CN101412845A CN101412845A CNA2007100308544A CN200710030854A CN101412845A CN 101412845 A CN101412845 A CN 101412845A CN A2007100308544 A CNA2007100308544 A CN A2007100308544A CN 200710030854 A CN200710030854 A CN 200710030854A CN 101412845 A CN101412845 A CN 101412845A
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Abstract
The invention discloses a high-performance fiber-reinforced nylon composite material and a preparation method thereof. The components in weight portion of the high-performance fiber-reinforced nylon composite material are: 30 to 80 portions of nylon resin, 10 to 50 portions of fibrous long fiber A, 10 to 30 portions of fibrous long fiber B, 0 to 10 portions of toughening agent, 0.1 to 1 portion of antioxidant and 0.2 to 1.5 portions of processing aid. The preparation method comprises the following steps of mixing, stirring, extruding, granulating, cooling and drying a certain proportion of aforementioned substances. The high-performance fiber-reinforced nylon composite material prepared in the invention has the characteristics of high strength, high modulus and little creep deformation. In contrast, the properties of the composite material are higher than pure glass fiber-reinforced nylon, but the price of the composite material is lower than carbon fiber-reinforced nylon. In addition, the preparation method has the advantage of simple operation, and is suitable for industrial production and application.
Description
Technical field
The invention belongs to technical field of polymer materials, be specifically related to a kind of high-performance fiber enhanced nylon matrix material and preparation method thereof.
Background technology
At present, the enhancing body that the Reinforced Nylon matrix material uses on market glass fibre normally.Yet along with improving constantly that industrial expansion and product technology require, existing glass fiber enhanced nylon is difficult to satisfy the use occasion that some have particular requirement.The appearance of carbon fiber is the revolution on the material history, it is the high-performance strongthener of present world first-selection, have high strength, high-modulus, high temperature resistant, antifatigue, conduction, light weight, easy multiple excellent properties such as processing, be widely used in every field such as space flight, aviation and military affairs and civilian mechano-electronic, material of construction, style, chemical industry, medical treatment.Yet carbon fiber has the high performance while, and price is relatively expensive, still is subjected to certain restriction on civilian, makes pure carbon fiber Reinforced Nylon widespread usage because the reason of price also has certain difficulty.High performance fiber reinforced nylon composite material is exactly the angle from market, glass fiber enhanced nylon does not reach performance demands in some special industry products in order to solve, and a kind of high performance fiber reinforced nylon composite material of developing under unacceptable situation on the pure carbon fiber Reinforced Nylon price, replace glass fibre with the part carbon fiber, the mechanical property of raising Reinforced Nylon that not only can be bigger and other lives, the price of reduction product that simultaneously also can be bigger, use that can be general is in some special industries.
Summary of the invention
In order to overcome the deficiencies in the prior art, the invention provides the high performance fiber reinforced nylon composite material that a kind of mechanical property is good and price is relatively cheap.
The technical solution adopted for the present invention to solve the technical problems is:
High performance fiber reinforced nylon composite material, its composition (weight ratio) is: nylon resin: the long fine A:10 of 30～80 parts, fiber～50 parts, the long fine B:10 of fiber～30 parts, toughner: 0～10 part, oxidation inhibitor: 0.1～1 part, processing aid: 0.2～1.5 part;
The preparation method of high performance fiber reinforced nylon composite material:
1): take by weighing the raw material nylon resin according to weight proportion, and through oven for drying;
2): will carry out adding after the surface treatment behind oxidation inhibitor, toughner and the processing aid stirring in the machine mixing through the material that step (1) obtains at height;
3): long fine A of fiber and the long fine B of fiber are mixed according to a certain percentage, and blend fiber is carried out surface treatment;
4): the material that step (2) obtains is sent in the twin screw extruder through feeder, and in the side direction charging opening of twin screw extruder, added the blend fiber that obtains through step (3);
5): the material that step (4) is obtained passes through tie rod, cooling, pelletizing, drying treatment.
The invention has the beneficial effects as follows: the high performance fiber reinforced nylon composite material of making by the present invention has physical strength height, high temperature resistant, light weight, easy multiple excellent properties such as processing; Preparation method of the present invention is simple to operate, and product price has advantage, is fit to suitability for industrialized production and popularization.
Embodiment
High performance fiber reinforced nylon composite material, its composition (weight ratio) is: nylon resin: the long fine A:10 of 30～80 parts, fiber～50 parts, the long fine B:10 of fiber～30 parts, toughner: 0～10 part, oxidation inhibitor: 0.1～1 part, processing aid: 0.2～1.5 part;
The nylon resin that this product uses can be a nylon 6, the combination matrix material of one or several nylon among nylon 66, nylon 46 and the nylon 9 T etc.; The long fine A of fiber is glass fibre preferably, and the long fine B of fiber is polyacrylonitrile carbon fiber preferably; Toughner is maleic anhydride grafts, as: one or several among EPDM, POE, SBS, the SEBS combine; Oxidation inhibitor is antioxidant 1010 and oxidation inhibitor 168 composite forming; In addition, the lubricant that adopts in the processing aid bright lubricant of TAF series preferably.
The preparation method of high performance fiber reinforced nylon composite material:
1): take by weighing the raw material nylon resin according to weight proportion, and through oven for drying;
2): will carry out adding after the surface treatment behind oxidation inhibitor, toughner and the processing aid stirring in the machine mixing through the material that step (1) obtains at height;
3): long fine A of fiber and the long fine B of fiber are mixed according to a certain percentage, and blend fiber is carried out surface treatment with the coupling machine;
4): the material that step (2) obtains is sent in the twin screw extruder through feeder, and the rotating speed of described feeder is 200～250r.p.m; And the blend fiber that adding obtains through step (3) in the side direction charging opening of twin screw extruder; Between 230～280 ℃, its rotating speed is 180～280r.p.m to the temperature of twin screw extruder from the charging opening to the head respectively, and mixture is subjected to Combined Processing such as shearing, fusion in twin screw extruder.
5): the material that step (4) is obtained passes through tie rod, cooling, pelletizing, drying treatment.
This product improves its mechanical property in order effectively to strengthen the interface compatible role between resin and the fiber, and step (2) and (4) described surface treatment are to handle through silane coupling agent.
For ease of the present invention is further understood, now describe the present invention in conjunction with specific embodiments.
Embodiment 1:
1): take by weighing 55 parts of raw material Nylon 6s according to weight proportion, and through oven for drying;
2): will carry out through the material that step (1) obtains adding after the surface treatment behind the processing aid of the toughner of oxidation inhibitor, 5 weight parts of 0.3 weight part and 0.5 weight part stirring in the machine and mix at height;
3): long fine A of fiber and the long fine B of fiber are pressed the 3:1 mixed, and blend fiber is carried out surface treatment with the coupling machine;
4): the material that step (2) obtains is sent in the twin screw extruder through feeder, and the rotating speed of described feeder is 200r.p.m; And in the side direction charging opening of twin screw extruder, add the blend fiber that obtains through step (3), make that the blend fiber parts by weight are 40 parts; The temperature of twin screw extruder from the charging opening to the head is respectively at 230 ℃, 240 ℃, 245 ℃, 245 ℃, 245 ℃, 240 ℃, 240 ℃, and its rotating speed is 250r.p.m, and mixture is subjected to Combined Processing such as shearing, fusion in twin screw extruder.
5): the material that step (4) is obtained passes through tie rod, cooling, pelletizing, drying treatment.
The specific performance of high performance fiber reinforced nylon 6 matrix material particles after injection moulding of gained is in this implementation method: tensile strength is 180MPa, and flexural strength is 250MPa, and modulus in flexure is 11500MPa, and cantilever beam impact strength is 10.5MPa.
Embodiment 2:
1): take by weighing 30 parts Nylon 6 and 32 parts Nylon 66 according to weight proportion, and through oven for drying;
2): will carry out through the material that step (1) obtains adding after the surface treatment behind the processing aid of the toughner of oxidation inhibitor, 8 weight parts of 0.5 weight part and 0.8 weight part stirring in the machine and mix at height;
3): long fine A of fiber and the long fine B of fiber are pressed the 3:1 mixed, and blend fiber is carried out surface treatment with the coupling machine;
4): the material that step (2) obtains is sent in the twin screw extruder through feeder, and the rotating speed of described feeder is 220r.p.m; And in the side direction charging opening of twin screw extruder, add the blend fiber that obtains through step (3), make that the blend fiber parts by weight are 30 parts; The temperature of twin screw extruder from the charging opening to the head is respectively at 250 ℃, 255 ℃, 260 ℃, 260 ℃, 265 ℃, 260 ℃, 260 ℃, and its rotating speed is 230r.p.m, and mixture is subjected to Combined Processing such as shearing, fusion in twin screw extruder.。
5): the material that step (4) is obtained passes through tie rod, cooling, pelletizing, drying treatment.
The specific performance of high performance fiber reinforced nylon composite material particle after injection moulding of gained is in this implementation method: tensile strength is 185MPa, and flexural strength is 240MPa, and modulus in flexure is 10500MPa, and cantilever beam impact strength is 9.5MPa.
Embodiment 3:
1): take by weighing 55 parts Nylon 66 according to weight proportion, and through oven for drying;
2): will carry out through the material that step (1) obtains adding after the surface treatment behind the processing aid of the toughner of oxidation inhibitor, 5 weight parts of 0.5 weight part and 0.5 weight part stirring in the machine and mix at height;
3): long fine A of fiber and the long fine B of fiber are pressed the 1:1 mixed, and blend fiber is carried out surface treatment with the coupling machine;
4): the material that step (2) obtains is sent in the twin screw extruder through feeder, and the rotating speed of described feeder is 240r.p.m; And in the side direction charging opening of twin screw extruder, add the blend fiber that obtains through step (3), make that the blend fiber parts by weight are 40 parts; The temperature of twin screw extruder from the charging opening to the head is respectively at 250 ℃, 265 ℃, 270 ℃, 270 ℃, 270 ℃, 270 ℃, 265 ℃, and its rotating speed is 250r.p.m, and mixture is subjected to Combined Processing such as shearing, fusion in twin screw extruder;
5): the material that step (4) is obtained passes through tie rod, cooling, pelletizing, drying treatment.
The specific performance of high performance fiber reinforced nylon 66 matrix material particles after injection moulding of gained is in this implementation method: tensile strength is 240MPa, and flexural strength is 350MPa, and modulus in flexure is 18500MPa, and cantilever beam impact strength is 8.0MPa.
Simultaneous test, the processing aid of 60 parts of Nylon 66s, 30 parts glass fibre, 5 parts toughner, 0.5 part oxidation inhibitor and 0.5 weight part is implemented the glass fiber reinforced nylon 66 dry back injection mouldings that three method obtains with concrete, be used for performance test, the performance of gained sample is: tensile strength is 160MPa, flexural strength is 250MPa, modulus in flexure is 8500MPa, and cantilever beam impact strength is 9.0MPa.Performance is worse than high performance fiber reinforced nylon 66 matrix materials.
The high performance fiber reinforced nylon composite material tool of making by the present invention High strength, high-modulus, the little characteristics of creep are arranged, and performance is higher than pure glass fibre and strengthens Nylon, and price is lower than carbon fiber reinforced nylon; Preparation method of the present invention operates letter Single, product price has advantage, is fit to suitability for industrialized production and application.
Claims (10)
1, high performance fiber reinforced nylon composite material is characterized in that being made up of by weight following composition:
Nylon resin: 30～80 parts
The long fine A:10 of fiber～50 parts
The long fine B:10 of fiber～30 parts
Toughner: 0～10 part
Oxidation inhibitor: 0.1～1 part
Processing aid: 0.2～1.5 part.
2,, it is characterized in that the long fine A of fiber is that glass fibre is long fine according to the described high performance fiber reinforced nylon composite material of claim 1; The long fine B of fiber is 12K or long fibre of 6K polyacrylonitrile carbon fiber or the long fibre of asphalt grade carbon fiber.
3,, it is characterized in that toughner is EPDM, the POE of maleic anhydride graft and one or several the combination among the SEBS according to the described high performance fiber reinforced nylon composite material of claim 1.
4,, it is characterized in that nylon resin can be a nylon 6, the combination of one or several nylon among nylon 66, nylon 46 and the nylon 9 T etc. according to the described high performance fiber reinforced nylon composite material of claim 1.
5, according to the described high performance fiber reinforced nylon composite material of claim 1, it is characterized in that oxidation inhibitor is antioxidant 1010 and oxidation inhibitor 168 composite forming, the lubricant in the processing aid is the bright lubricant of TAF series.
6, according to the preparation method of the described high performance fiber reinforced nylon composite material of claim 1, it is characterized in that:
1): take by weighing the raw material nylon resin according to weight proportion, and through oven for drying;
2): will carry out adding after the surface treatment behind oxidation inhibitor, toughner and the processing aid stirring in the machine mixing through the material that step (1) obtains at height;
3): long fine A of fiber and the long fine B of fiber are mixed according to a certain percentage, and blend fiber is carried out surface treatment;
4): the material that step (2) obtains is sent in the twin screw extruder through feeder, and in the side direction charging opening of twin screw extruder, added the blend fiber that obtains through step (3);
5): the material that step (4) is obtained passes through tie rod, cooling, pelletizing, drying treatment.
7, according to the preparation method of the described high performance fiber reinforced nylon composite material of claim 6, it is characterized in that: the feeder rotating speed of step (4) is 200～250r.p.m.
8, according to the preparation method of the described high performance fiber reinforced nylon composite material of claim 6, it is characterized in that: each section temperature of the twin screw extruder of step (4) is between 230～280 ℃.
9, according to the preparation method of the described high performance fiber reinforced nylon composite material of claim 6, it is characterized in that: the twin screw extruder rotating speed of step (4) is 180～280r.p.m.
10, according to the preparation method of the described high performance fiber reinforced nylon composite material of claim 6, it is characterized in that: step (2) and (3) described surface treatment are to handle through silane coupling agent.
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| CN102010593A (en) * | 2010-12-23 | 2011-04-13 | 南京聚隆科技股份有限公司 | Mineral and long glass fiber reinforced nylon 6 composite material and preparation method thereof |
| CN102181150A (en) * | 2011-03-24 | 2011-09-14 | 北京化工大学 | Waste carbon fiber reinforced nylon 6 composite material and preparation method thereof |
| CN102311640A (en) * | 2010-12-30 | 2012-01-11 | 安徽科聚新材料有限公司 | Carbon fiber reinforced polyamide composite material and preparation method thereof |
| CN102329518A (en) * | 2011-07-26 | 2012-01-25 | 句容市百事特复合材料有限公司 | Textured yarn continuous fiber reinforced plastic grain and producing method thereof |
| CN101564874B (en) * | 2009-05-27 | 2012-07-04 | 靳柱山 | Method for preparing nanometer heat-insulation composite material |
| CN102828654A (en) * | 2012-04-27 | 2012-12-19 | 山东国强五金科技股份有限公司 | Standard lever handle for plastic-steel doors and windows |
| CN103113740A (en) * | 2013-01-14 | 2013-05-22 | 东莞市明聚塑胶有限公司 | Nylon-66 modified elastomer and preparation method thereof |
| CN103450667A (en) * | 2012-05-29 | 2013-12-18 | 漯河市隆诚塑业有限公司 | High-strength compound fiber strengthened nylon material and preparation method thereof |
| CN103450665A (en) * | 2013-08-23 | 2013-12-18 | 北京化工大学常州先进材料研究院 | Long-carbon-fiber-reinforced nylon composite material with electromagnetic shielding function and preparation method thereof |
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2007
- 2007-10-16 CN CNA2007100308544A patent/CN101412845A/en active Pending
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| CN109476910A (en) * | 2016-07-13 | 2019-03-15 | Ems 专利股份公司 | Conductive thermoplastic polyamide molding material |
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