CN101880459B - Toughened nylon 66 for hair dryer shell and preparation method thereof - Google Patents
Toughened nylon 66 for hair dryer shell and preparation method thereof Download PDFInfo
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- CN101880459B CN101880459B CN2010102268806A CN201010226880A CN101880459B CN 101880459 B CN101880459 B CN 101880459B CN 2010102268806 A CN2010102268806 A CN 2010102268806A CN 201010226880 A CN201010226880 A CN 201010226880A CN 101880459 B CN101880459 B CN 101880459B
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Abstract
The invention provides toughened nylon 66 for a hair dryer shell and a preparation method thereof. The toughened nylon 66 comprises the following materials in part by weight: 60 to 85 parts of nylon 66 chips, 1 to 10 parts of maleic anhydride grafted ethylene-butyl acrylate copolymer, 4 to 30 parts of ethylene elastomer, 0.1 to 1 part of antioxidant and 0.1 to 1 part of lubricating agent. The method comprises the following steps of: drying the nylon 66 chips; adding the nylon 66 chips, a toughening agent, the antioxidant and the lubricating agent into a high-speed mixer in part by weight, mixing the mixture uniformly, adding the mixture into a double-screw extruder through a weightlessness weigh to perform fusion, and extruding, granulating, cooling and drying the mixture to obtain the toughened nylon 66 for the hair dryer shell. The toughened nylon 66 for the hair dryer shell has excellent impact strength and good comprehensive performance, improves the breaking resistance of the hair dryer shell, makes a hair dryer durable, and greatly prolongs the service life of the hair dryer.
Description
Technical field
The invention belongs to the polymer composite field, be specifically related to a kind of toughened Nylon 66 that is used for hair dryer shell and preparation method thereof.
Background technology
Nylon 66 is to be formed by hexanodioic acid and hexanediamine polycondensation.Contain a large amount of carboxamido-group in the macromolecular structure of nylon 66, the macromole end is amino or carboxyl, so it is a kind of strong polarity, intermolecular formation hydrogen bond and crystalline polymer with certain reactive behavior.Its performance characteristics is: excellent mechanical property, and wear resistance, self lubricity, erosion resistance reaches forming process property preferably.But the notched Izod impact strength of nylon 66 is relatively poor, and has bigger water-absorbent, influences its size stability and electrical insulating property.For this reason, the modification technology of nylon is a lot, and wherein the blend alloy technology is one of the strongest means.The research that polyolefine and nylon blending is prepared tenacity increased nylon is a lot, and key wherein is the problem that will solve consistency difference between nonpolar polyolefine and the strong polar nylon.Usually the method that adopts be earlier on polyolefinic molecular chain grafting can with the small molecules of nylon molecule chain end amino or carboxamido-group reaction, that the most frequently used is maleic anhydride (MAH).In the process that melt extrudes with nylon, modified polyolefin and nylon reaction generate the in-situ copolymerization thing then; Strengthened the bonding force between phase interface; Refinement dispersed phase size, enlarged the distribution range of disperse phase in external phase, make blend performance be improved significantly.
The melt temperature of nylon 66 is high, polarity is strong, processing difficulties, selects its toughner, expanding material difficulty very big.Follow-up stories such as Duvall they to the result of study of M PP increase-volume PA 66/PP blend.But,,, when addition is big, can cause the blend alloy mechanical properties decrease on the contrary because the PP degraded is serious with the prepared grafts of single component molten monomer grafted method.
Hair dryer is one of standing small household appliances of barbershop, hotel and family, because the frequency of utilization of hair dryer is high, the hair dryer shell materials require to have higher over-all properties.But not anti-the falling of hair dryer shell that common nylon 66 material is prepared is easy to take place brittle rupture.
Summary of the invention
To the deficiency that existing nylon 66 exists self, primary and foremost purpose of the present invention provides a kind of toughened Nylon 66 that is used for the high shock strength of having of hair dryer shell, good over-all properties.
Another object of the present invention is to provide a kind of above-mentioned preparation method who is used for the toughened Nylon 66 of hair dryer shell.
The object of the invention is realized through following technical scheme:
A kind of toughened Nylon 66 that is used for hair dryer shell, by weight, form by following components in part by weight:
Nylon 66 slice: 60～85 parts
Maleic anhydride grafted ethene-butyl acrylate copolymer: 1～10 part
Vinyl elastomerics: 4～30 parts
Oxidation inhibitor: 0.1～1 part
Lubricant: 0.1～1 part.
Said nylon 66 slice is the LV nylon 66 slice, and viscosity is 2.4～2.7PaS.
The melt flow rate(MFR) of said maleic anhydride grafted ethene-butyl acrylate copolymer is 5g/10min～10g/10min (190 ℃, 2.16kg load), and the quality percentage composition of Bing Xisuandingzhi is 5%～10%; Maleic anhydride grafted ethene-butyl acrylate copolymer is available from the ARKEMA company of France.
Said vinyl elastomerics is linear low density polyethylene (LLDPE), ethylene-octene copolymer (POE) or terpolymer EP rubber (EPDM).
Said oxidation inhibitor is Hinered phenols antioxidant or Hinered phenols antioxidant and the composite composite oxidant of phosphite ester kind antioxidant; Said lubricant is the stearate series lubricant agent.
Preferably, said Hinered phenols antioxidant is an antioxidant 1010; Said phosphite ester kind antioxidant is an oxidation inhibitor 168; The mass ratio of Hinered phenols antioxidant and phosphite ester kind antioxidant is 1: 2 in the said composite oxidant; Said stearate series lubricant agent is Zinic stearas or calcium stearate.
The above-described preparation method who is used for the toughened Nylon 66 of hair dryer shell may further comprise the steps:
(1) nylon 66 slice is dry, obtains dried nylon 66 slice;
(2) each component materials joined in the high-speed mixer mix, mixture, said each component materials is counted by weight: dried nylon 66 slice: 60～85 parts; Maleic anhydride grafted ethene-butyl acrylate copolymer: 1～10 part; Vinyl elastomerics: 4～30 parts; Oxidation inhibitor: 0.1～1 part; Lubricant: 0.1～1 part;
(3) mixture is claimed to join fusion in the twin screw extruder through weightlessness, the extruding pelletization postcooling, drying obtains being used for the toughened Nylon 66 of hair dryer shell.
Exsiccant temperature described in the step (1) is 90 ℃～110 ℃, and the time is 2～8 hours.
The temperature of respectively distinguishing of forcing machine described in the step (3) is 200 ℃～220 ℃ of first heating zone, 250 ℃～270 ℃ of second heating zone, 250 ℃～270 ℃ of the 3rd heating zone; 250 ℃～270 ℃ of the 4th heating zone, 250 ℃～270 ℃ of slender acanthopanax hot-zones, 250 ℃～270 ℃ of the 6th heating zone; 240 ℃～260 ℃ of the 7th heating zone; 240 ℃～260 ℃ of the 8th heating zone, 240 ℃～260 ℃ of the 9th heating zone, 240 ℃～260 ℃ of heads.
350 rev/mins～450 rev/mins of the engine speeds of forcing machine described in the step (3); The said weightless rate of feeding of claiming is 300 kilograms/hour～500 kilograms/hour.
Principle of the present invention is:
Nylon 66 is polymkeric substance of a kind of very easy suction; The highlyest can absorb water about 4%, in high temperature process, water wherein can cause nylon 66 easily and degrade; Thereby reduce the performance of nylon 66, so the present invention is earlier with using after the nylon 66 slice drying again.
The vinyl elastomerics is the extraordinary polymkeric substance of snappiness; Be the toughness reinforcing good selections of engineering plastics; And the vinyl elastomerics is nonpolar high molecular polymer; And nylon 66 is a kind of polarity high molecular polymers, and the two does not possess consistency, so the present invention has selected for use maleic anhydride grafted ethene-Bing Xisuandingzhi to be used as a kind of consistency toughner.Maleic anhydride grafted ethene-Bing Xisuandingzhi has the maleic anhydride group that reaction ins can take place with nylon 66, and the Bing Xisuandingzhi group of self also has high toughness, can play toughness reinforcing effect; Maleic anhydride grafted ethene-Bing Xisuandingzhi vinyl groups wherein can guarantee that nylon 66 and vinyl elastomerics reach good compatible.
Common toughner that is used for toughened Nylon 66 or compatilizer melt flow digit rate are generally all (190 ℃ of 2g/10min; 2.16kg load), it is inhomogeneous in the course of processing, to tend to cause toughner in system, to disperse, and causes the toughness of material unstable; And the melt flow rate(MFR) of maleic anhydride grafted ethene-Bing Xisuandingzhi that the present invention selects for use is (190 ℃ of 5g/10min～10g/10min; 2.16kg load), have extraordinary flowability, can improve the flowability of toughened system; And then guaranteed the agent of vinyl elastic body toughening can be in toughened system homodisperse, make whole toughened system reach good bonding and dispersion effect.
The present invention compared with prior art has following advantage and beneficial effect:
(1) the present invention is toughened Nylon 66 matrix materials that aim at the hair dryer shell research and development, has excellent shock strength and good comprehensive performances.When adding 14 weight part toughner, simple beam notch shock and socle girder notch shock can improve 10 times and 12.6 times; When adding 38.5 weight part toughner, simple beam notch shock and socle girder notch shock can improve 16 times and 22.5 times.
(2) the prepared toughened Nylon 66 of the present invention has improved the crash resistance of hair dryer shell.The hair dryer shell of nylon 66 preparations, load-bearing 1kg, height is thrown for 1 meter, once just has tangible crackle; And the prepared hair dryer shell of toughened Nylon 66, load-bearing 3kg, 1 meter of height falls and does not have any crackle for three times, makes hair dryer more durable, has improved the work-ing life of hair dryer greatly.
Embodiment
Below in conjunction with embodiment the present invention is described in further detail, but embodiment of the present invention is not limited thereto.
Embodiment 1:
(1) weight part of toughened Nylon 66 each component of matrix material is following:
Nylon 66 slice (viscosity is 2.7PaS): 85 weight parts
4 weight parts
Maleic anhydride grafted ethene-butyl acrylate copolymer:
(melt flow rate(MFR) 10g/10min, Bing Xisuandingzhi content are 6%)
Ethylene-octene copolymer: 10 weight parts
Oxidation inhibitor (1010): 0.5 weight part
Lubricant (Zinic stearas): 0.5 weight part
(2) preparation method is following:
Nylon 66 slice in 100 ℃ drying hopper dry 3 hours; Nylon 66 slice, maleic anhydride grafted ethene-butyl acrylate copolymer, ethylene-octene copolymer, oxidation inhibitor and lubricant were mixed 1 minute in the high-speed mixer high speed; (length-to-diameter ratio is 40: 1 to claim to join twin screw extruder at first segment barrel place with mixed material through weightlessness; Screw diameter is 75mm) in melt extrude granulation, the engine speed of twin screw extruder is 450 rev/mins, rate of feeding is 300 kilograms/hour; The temperature of each warm area of forcing machine is followed successively by 220 ℃, 260 ℃, 270 ℃, 270 ℃, 265 ℃, 260 ℃, 250 ℃, 250 ℃, 250 ℃; Head temperature is 250 ℃, extruding pelletization postcooling, drying; Obtain being used for toughened Nylon 66 matrix materials of hair dryer shell, its rerum natura is as shown in table 1.
Embodiment 2
(1) weight part of toughened Nylon 66 each component of matrix material is following:
Nylon 66 slice (viscosity is 2.5PaS): 79 weight parts
6 weight parts
Maleic anhydride grafted ethene-butyl acrylate copolymer:
(melt flow rate(MFR) is 8g/10min, and Bing Xisuandingzhi content is 5%)
Terpolymer EP rubber: 14 weight parts
Oxidation inhibitor (1010: 168=1: 2): 0.3 weight part
Lubricant (calcium stearate): 0.7 weight part
(2) preparation method is following:
Nylon 66 slice in 100 ℃ drying hopper dry 3 hours; Nylon 66 slice, maleic anhydride grafted ethene-butyl acrylate copolymer, ethylene-octene copolymer, oxidation inhibitor and lubricant were mixed 1 minute in the high-speed mixer high speed, mixed material is claimed to join in the twin screw extruder (length-to-diameter ratio is 40: 1, screw diameter 75mm) at first segment barrel place through weightlessness melt extrude granulation; The engine speed of twin screw is 450 rev/mins; Rate of feeding is 500 kilograms/hour, and the temperature of each warm area of forcing machine is followed successively by 220 ℃, 260 ℃, 270 ℃, 270 ℃, 265 ℃, 260 ℃, 260 ℃, 260 ℃, 250 ℃, and head temperature is 250 ℃; The extruding pelletization postcooling; Drying obtains being used for toughened Nylon 66 matrix materials of hair dryer shell, and its rerum natura is as shown in table 1.
Embodiment 3
(1) weight part of toughened Nylon 66 each component of matrix material is following:
Nylon 66 slice (viscosity is 2.7PaS): 78.5 weight parts
6 weight parts
Maleic anhydride grafted ethene-butyl acrylate copolymer:
(melt flow rate(MFR) is 8g/10min, and Bing Xisuandingzhi content is 6%)
Linear low density polyethylene: 14 weight parts
Oxidation inhibitor (1010: 168=1: 2): 1 weight part
Lubricant (Zinic stearas): 0.5 weight part
(2) preparation method is following:
Nylon 66 slice in 90 ℃ drying hopper dry 4 hours; Nylon 66 slice, maleic anhydride grafted ethene-butyl acrylate copolymer, ethylene-octene copolymer, oxidation inhibitor and lubricant were mixed 1 minute in the high-speed mixer high speed, mixed material is claimed to join in the twin screw extruder (length-to-diameter ratio is 40: 1, and screw diameter is 75mm) at first segment barrel place through weightlessness melt extrude granulation; The engine speed of twin screw extruder is 400 rev/mins; Rate of feeding is 350 kilograms/hour, and the temperature of each warm area of forcing machine is followed successively by 220 ℃, 260 ℃, 270 ℃, 270 ℃, 265 ℃, 260 ℃, 240 ℃, 240 ℃, 250 ℃, and head temperature is 250 ℃; The extruding pelletization postcooling; Drying obtains being used for toughened Nylon 66 matrix materials of hair dryer shell, and its rerum natura is as shown in table 1.
Embodiment 4
(1) weight part of toughened Nylon 66 each component of matrix material is following:
Nylon 66 slice (viscosity is 2.4PaS): 60 weight parts
Maleic anhydride grafted ethene-butyl acrylate copolymer:
10 weight parts
(melt flow rate(MFR) is 5g/10min, and Bing Xisuandingzhi content is 10%)
Ethylene-octene copolymer: 28.5 weight parts
Oxidation inhibitor (1010): 0.5 weight part
Lubricant (Zinic stearas): 1 weight part
(2) preparation method is following:
Nylon 66 slice in 90 ℃ drying hopper dry 4 hours; Nylon 66 slice, maleic anhydride grafted ethene-butyl acrylate copolymer, ethylene-octene copolymer, oxidation inhibitor and lubricant were mixed 1 minute in the high-speed mixer high speed, mixed material is claimed to join in the twin screw extruder (length-to-diameter ratio is 40: 1, and screw diameter is 75mm) at first segment barrel place through weightlessness melt extrude granulation; The engine speed of twin screw extruder is 450 rev/mins; Rate of feeding is 400 kilograms/hour, and the temperature of each warm area of forcing machine is followed successively by 200 ℃, 250 ℃, 250 ℃, 250 ℃, 250 ℃, 250 ℃, 240 ℃, 240 ℃, 240 ℃, and head temperature is 240 ℃; The extruding pelletization postcooling; Drying obtains being used for toughened Nylon 66 matrix materials of hair dryer shell, and its rerum natura is as shown in table 1.
Embodiment 5
(1) weight part of toughened Nylon 66 each component of matrix material is following:
Nylon 66 slice (viscosity is 2.6PaS): 68.5 weight parts
9 weight parts
Maleic anhydride grafted ethene-butyl acrylate copolymer:
(melt flow rate(MFR) is 6g/10min, and Bing Xisuandingzhi content is 8%)
Terpolymer EP rubber: 21 weight parts
Oxidation inhibitor (1010): 0.75 weight part
Lubricant (calcium stearate): 0.75 weight part
(2) preparation method is following:
Nylon 66 slice in 110 ℃ drying hopper dry 3 hours; Nylon 66 slice, maleic anhydride grafted ethene-butyl acrylate copolymer, ethylene-octene copolymer, oxidation inhibitor and lubricant were mixed 1 minute in the high-speed mixer high speed, mixed material is claimed to join in the twin screw extruder (length-to-diameter ratio is 40: 1, and screw diameter is 75mm) at first segment barrel place through weightlessness melt extrude granulation; The engine speed of twin screw extruder is 400 rev/mins; Rate of feeding is 400 kilograms/hour, and the temperature of each warm area of forcing machine is followed successively by 220 ℃, 260 ℃, 270 ℃, 270 ℃, 270 ℃, 260 ℃, 260 ℃, 250 ℃, 260 ℃, and head temperature is 260 ℃; The extruding pelletization postcooling; Drying obtains being used for toughened Nylon 66 matrix materials of hair dryer shell, and its rerum natura is as shown in table 1.
Toughened Nylon 66 matrix materials of table 1 embodiment 1～5 and the performance test results of nylon 66 are relatively
The foregoing description is a preferred implementation of the present invention; But embodiment of the present invention is not restricted to the described embodiments; Other any do not deviate from change, the modification done under spirit of the present invention and the principle, substitutes, combination, simplify; All should be the substitute mode of equivalence, be included within protection scope of the present invention.
Claims (9)
1. toughened Nylon 66 that is used for hair dryer shell is characterized in that: by weight, be made up of following components in part by weight:
Nylon 66 slice: 60～85 parts
Maleic anhydride grafted ethene-butyl acrylate copolymer: 1～10 part
Vinyl elastomerics: 4～30 parts
Oxidation inhibitor: 0.1～1 part
Lubricant: 0.1～1 part.
2. a kind of toughened Nylon 66 that is used for hair dryer shell according to claim 1, it is characterized in that: said nylon 66 slice is the LV nylon 66 slice, viscosity is 2.4～2.7PaS.
3. a kind of toughened Nylon 66 that is used for hair dryer shell according to claim 1; It is characterized in that: the melt flow rate(MFR) of said maleic anhydride grafted ethene-butyl acrylate copolymer under the condition of 190 ℃ of temperature and load 2.16kg is 5g/10min～10g/10min, and the quality percentage composition of Bing Xisuandingzhi is 5%～10%; Said vinyl elastomerics is linear low density polyethylene, ethylene-octene copolymer or terpolymer EP rubber.
4. a kind of toughened Nylon 66 that is used for hair dryer shell according to claim 1 is characterized in that: said oxidation inhibitor is Hinered phenols antioxidant or Hinered phenols antioxidant and the composite composite oxidant of phosphite ester kind antioxidant; Said lubricant is the stearate series lubricant agent.
5. a kind of toughened Nylon 66 that is used for hair dryer shell according to claim 4, it is characterized in that: said Hinered phenols antioxidant is an antioxidant 1010; Said phosphite ester kind antioxidant is an oxidation inhibitor 168; The mass ratio of Hinered phenols antioxidant and phosphite ester kind antioxidant is 1: 2 in the said composite oxidant; Said stearate series lubricant agent is Zinic stearas or calcium stearate.
6. according to each described preparation method who is used for the toughened Nylon 66 of hair dryer shell of claim 1～5, it is characterized in that may further comprise the steps:
(1) with nylon chips 66 dryings, obtains dried nylon 66 slice;
(2) each component materials joined in the high-speed mixer mix, mixture, said each component materials is counted by weight: dried nylon 66 slice: 60～85 parts; Maleic anhydride grafted ethene-butyl acrylate copolymer: 1～10 part; Vinyl elastomerics: 4～30 parts; Oxidation inhibitor: 0.1～1 part; Lubricant: 0.1～1 part;
(3) mixture is claimed to join fusion in the twin screw extruder through weightlessness, the extruding pelletization postcooling, drying obtains being used for the toughened Nylon 66 of hair dryer shell.
7. the preparation method who is used for the toughened Nylon 66 of hair dryer shell according to claim 6 is characterized in that: exsiccant temperature described in the step (1) is 90 ℃～110 ℃, and the time is 2～8 hours.
8. the preparation method who is used for the toughened Nylon 66 of hair dryer shell according to claim 6 is characterized in that: the temperature of respectively distinguishing of forcing machine described in the step (3) is 200 ℃～220 ℃ of first heating zone, 250 ℃～270 ℃ of second heating zone; 250 ℃～270 ℃ of the 3rd heating zone; 250 ℃～270 ℃ of the 4th heating zone, 250 ℃～270 ℃ of slender acanthopanax hot-zones, 250 ℃～270 ℃ of the 6th heating zone; 240 ℃～260 ℃ of the 7th heating zone; 240 ℃～260 ℃ of the 8th heating zone, 240 ℃～260 ℃ of the 9th heating zone, 240 ℃～260 ℃ of heads.
9. the preparation method who is used for the toughened Nylon 66 of hair dryer shell according to claim 6 is characterized in that: 350 rev/mins～450 rev/mins of the engine speeds of forcing machine described in the step (3); The said weightless rate of feeding of claiming is 300 kilograms/hour～500 kilograms/hour.
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103242649B (en) * | 2012-02-06 | 2015-09-30 | 金发科技股份有限公司 | A kind of glass fiber reinforced nylon material for extrusion moulding and preparation method and application |
| CN102993743B (en) * | 2012-09-29 | 2014-12-24 | 天津金发新材料有限公司 | Polyhexamethylene adipamide-based thermoplastic elastomer, and preparation method and application thereof |
| CN103073880A (en) * | 2012-12-25 | 2013-05-01 | 广州鹿山新材料股份有限公司 | Toughened nylon composite and preparation method thereof |
| CN104845362A (en) * | 2015-06-03 | 2015-08-19 | 苏州靖羽新材料有限公司 | Toughened nylon material and preparation method thereof |
| CN107778849A (en) * | 2017-11-02 | 2018-03-09 | 雪龙集团股份有限公司 | A kind of anti-UV materials of automobile lampshade filled nylon toughness reinforcing and preparation method thereof |
| CN109694573A (en) * | 2018-12-29 | 2019-04-30 | 浙江普利特新材料有限公司 | A kind of high intensity, high tenacity, mechanical resistant oil are for oil sump glass fiber reinforced nylon material and preparation method thereof |
| CN111849154A (en) * | 2020-07-23 | 2020-10-30 | 江苏恒峰线缆有限公司 | Preparation method of novel nylon |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1316459A (en) * | 2001-05-15 | 2001-10-10 | 南开大学 | Modified polyolefine elastomer and its preparing process |
| CN101760003A (en) * | 2008-11-21 | 2010-06-30 | 上海普利特复合材料股份有限公司 | Ultraviolet resistant nylon/acrylonitrile-styrene-acrylate resin co-mixed material |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1316459A (en) * | 2001-05-15 | 2001-10-10 | 南开大学 | Modified polyolefine elastomer and its preparing process |
| CN101760003A (en) * | 2008-11-21 | 2010-06-30 | 上海普利特复合材料股份有限公司 | Ultraviolet resistant nylon/acrylonitrile-styrene-acrylate resin co-mixed material |
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