CN106928624A - A kind of nucleocapsid nylon toughener and preparation method and application based on extruder technique - Google Patents
A kind of nucleocapsid nylon toughener and preparation method and application based on extruder technique Download PDFInfo
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- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L51/00—Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers
- C08L51/06—Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers grafted on to homopolymers or copolymers of aliphatic hydrocarbons containing only one carbon-to-carbon double bond
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- C08L77/00—Compositions of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Compositions of derivatives of such polymers
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- C08L77/00—Compositions of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Compositions of derivatives of such polymers
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Abstract
The invention discloses a kind of nucleocapsid nylon toughener and preparation method and application based on extruder technique.Extruder is put into after thermoplastic polyolefin elastomer and polyolefin are well mixed, the temperature for controlling extruder is 130~170 DEG C, wherein, in terms of mass fraction, 5~95 parts of the thermoplastic polyolefin elastomer, double bond is not contained in 95~5 parts of the polyolefin, the thermoplastic polyolefin elastomer and the polyolefin.The nylon toughener of the core shell structure prepared using the method can significantly improve the impact property of nylon material, while the tensile strength of nylon material, modulus etc. can be reduced.
Description
Technical field
The present invention relates to a kind of preparation method of tenacity increased nylon, and in particular to a kind of nucleocapsid nylon based on extruder technique
Toughener and preparation method and application.
Background technology
Nylon is that a kind of purposes is most wide, the engineering plastics of most species, and the material has good mechanical property, heat-resisting
Property, wear resistance, chemical solvent resistance, self lubricity and certain anti-flammability, be widely used in automobile, electronic apparatus, machinery,
The fields such as track traffic, sports apparatus.But pure nylon material water imbibition is strong, low temperature impact properties are poor, limits nylon material
In the application in low temperature or impact property requirement field high.
Polyolefin or polyolefin elastomer are mixed with nylon, can significantly improve that the material water imbibition is strong, low temperature punching
Hit the shortcoming of poor performance.It is nonpolar due to polyolefin based materials, it is difficult to be well mixed with the nylon material of polarity, using polarity
The method that compound, such as maleic anhydride, itaconic acid isopolarity monomer carry out graft modification to polyolefin or polyolefin elastomer
During polyolefin evenly spread into nylon material, as preparing tenacity increased nylon most common method.Dispersed polyolefin or
Person's polyolefin elastomer can effectively absorb the impact energy that matrix material is subject to, and scattered polyolefin particles can also effectively hinder
The generation of crack arrest line, therefore nylon material impact strength at low temperature is significantly improved, the addition of non-polar polyolefinic also may be used
Substantially to reduce the water imbibition of material.
The existing technique for preparing tenacity increased nylon using extruder technique, the technique possess high-quality, high yield, efficiently
The advantages of rate.
Chinese patent (publication number CN1445278A) discloses a kind of maleic anhydride stem grafting polyolefin elastomer toughened nylon
Preparation method, nylon, maleic anhydride stem grafting polyolefin elastomer are extruded in extruder at 220~240 DEG C and obtain toughness reinforcing
Nylon material.
Chinese patent (publication number CN101781455A) discloses a kind of preparation method of super-tough nylon alloy, by nylon,
Itaconic Acid Grafted ethylene-alpha-octylene copolymers, antioxidant, lubricant mix in being put into high-speed mixer, then put mixture
In entering double screw extruder, 250~280 DEG C of extrusion temperature, 200~400 revs/min of driving screw rotating speed, by traction, cooling,
Pelletizing, obtains polyolefin tenacity-increased nylon mixture.
Chinese patent (publication number CN1480489A) discloses a kind of preparation method of toughened polyamide, first in peroxidating
In the presence of thing initiator, in an extruder using polar monomer graft polyolefin elastomer, then by the graft and nylon 6
It is well mixed, granulation extrusion is carried out in an extruder, obtain the composition with excellent toughness and processing characteristics.
Chinese patent (publication number CN901067784A) discloses a kind of preparation method of tenacity increased nylon, first in peroxidating
In the presence of diisopropylbenzene (DIPB) initiator, ethylene propylene diene rubber is grafted using maleic anhydride in an extruder, obtains grafting and change
Property polyolefin, then the graft is well mixed with nylon66 fiber, granulation extrusion is carried out in an extruder, the material that obtains tool
There are good insulation properties, heat-resisting and cold tolerance, can be used in the range of -40 DEG C~70 DEG C during as rail insulated joint.
Technique of the existing use extrusion mechanism for tenacity increased nylon is can be seen that from above-mentioned patent, is all simple by polyolefin
Graft is granulated with nylon by extruder, although can also improve the impact property of nylon material, but material is strong
Degree and modulus index are significantly reduced, it is difficult to avoid nylon material toughness unbalance with strength character.
The content of the invention
In order to overcome extrusion mechanism for the defect of the technique of tenacity increased nylon, an object of the present invention is to provide one kind and is based on
The preparation method of the nucleocapsid nylon toughener of extruder technique, being prepared using the method can prepare with core shell structure
Nylon toughener, can significantly improve the impact property of nylon material, while can using the nylon toughener of the core shell structure
Reduce the fall of tensile strength, the modulus of nylon material etc..
To achieve these goals, the skill of the preparation method of the nucleocapsid nylon toughener based on extruder technique of the invention
Art scheme is：
A kind of preparation method of the nucleocapsid nylon toughener based on extruder technique, by thermoplastic polyolefin elastomer and poly-
Extruder is put into after olefin is uniform, the temperature of extruder is controlled for 130~170 DEG C, wherein, it is described in terms of mass fraction
5~95 parts of thermoplastic polyolefin elastomer, 95~5 parts of the polyolefin, the thermoplastic polyolefin elastomer and the polyene
Double bond is not contained in hydrocarbon.
The present invention, first, using thermoplastic polyolefin elastomer and polyolefin as raw material, and controls the temperature of extruder
Be 130~170 DEG C, by adjusting the fluidity of molten of thermoplastic elastomer (TPE) and polyolefin, thermoplastic polyolefin elastomer it is molten
Liquid flowability is good, and the fluidity of molten of polyolefin is low so that when raw material is blended in an extruder, thermoplastic polyolefin elastomer energy
Enough cladding polyolefin well such that it is able to form the core-shell type with thermoplastic polyolefin elastomer as shell, with polyolefin as core
Structure.Secondly, the present invention is by it is demonstrated experimentally that the nylon toughener energy of the shell core formula structure prepared using the raw material under the ratio
The impact property of nylon material is enough significantly improved, while reducing the fall of the indexs such as tensile strength, modulus, can realize increasing
The balance of toughened nylon material toughness and intensity.3rd, double bond is not contained in the raw material that the present invention is used, this is because use contains
The weatherability of toughener prepared by the raw material for having double bond is poor, especially intolerant to ultraviolet, by ultraviolet irradiation so that prepared by the toughener
Nylon material intensity decline, its colour changed into yellow, influence nylon material overall performance；And to eliminate double bond influence, just need
Adding initiator makes double-bond polymerization, but the polymerization of double bond, can crosslink polyolefin, so as to reduce nylon toughener
Processability, improves production cost；Initiator is added, processing step can be increased so that the production technology time increases；Initiator plus
Entering amount can also influence crosslinking degree, so that complex manufacturing is changeable.Contain double bond in raw material simultaneously, shell is bonded by chemistry
It is connected on core, chemical bond has certain rigidity so that the more similar hair brush structure of the core shell structure, reduces the covering property of shell,
So that toughening effect reduction；The present invention both improves weather resisteant using not double bond containing raw material, and initiator need not be added again, subtracts
Few operation, moreover it is possible to so that shell coats core completely, so as to improve the toughening effect of toughener.
The second object of the present invention is to provide a kind of above method and prepares nylon toughener.The nylon toughener is with high tenacity
Polyolefin elastomer is that shell and high-modulus polyolefin are core, can fully achieve nylon material toughness flat with strength character
Weighing apparatus.
In order to improve the impact property of nylon material, while the fall of intensity and modulus index is reduced, it is of the invention
The third purpose be to provide a kind of above-mentioned nylon toughener in nylon material or prepare nylon material in application.
The fourth object of the present invention is to provide a kind of preparation method of nylon material, can realize nylon material toughness with it is strong
Spend the balance of performance.
To achieve these goals, the technical scheme of the preparation method of nylon material of the invention is：
A kind of preparation method of nylon material, above-mentioned nylon toughener, nylon, antioxidant are put into extruder and are squeezed
Go out.
The fifth object of the present invention is to provide nylon material prepared by a kind of preparation method of above-mentioned nylon material.
Beneficial effects of the present invention are：
1. the present invention is prepared for polyolefin elastomer for shell by the optimization to toughener structure using melting extrusion technique
Layer, the polyolefin with relative high-modulus are the hud typed polyolefine toughener of core, by elastomeric polyolefin elastomer bag
It is rolled in the polyolefin particles surface of high-modulus.
2. traditional extruder technique prepares tenacity increased nylon method and compares, under same composition, nylon prepared by the present invention
Impact Properties of Materials is significantly improved, and the reduction of the index fall such as tensile strength, modulus, and nylon material is realized well
The balance of toughness and intensity.
3. the present invention using extrusion mechanism for toughener and tenacity increased nylon, preparation process have it is simple to operate, be easily achieved
Industrialized feature.
Specific embodiment
It is noted that described further below is all exemplary, it is intended to provide further instruction to the application.Unless another
Indicate, all technologies used herein and scientific terminology are with usual with the application person of an ordinary skill in the technical field
The identical meanings of understanding.
It should be noted that term used herein above is merely to describe specific embodiment, and be not intended to restricted root
According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise singulative
Be also intended to include plural form, additionally, it should be understood that, when in this manual use term "comprising" and/or " bag
Include " when, it indicates existing characteristics, step, operation, device, component and/or combinations thereof.
Heretofore described " polyolefin " refers to the polymer general name of ethene, propylene or higher alkene, such as ethene, third
The alpha-olefins such as alkene, 1- butylene, 1- amylenes, 1- hexenes, 1- octenes, 4-methyl-1-pentene and some cycloolefins be polymerized alone or
Combined polymerization and obtain.
Heretofore described " thermoplastic polyolefin elastomer graft " refers to maleic anhydride (MAH) graft polyolefin
Polymer.
Heretofore described " grafting " refers to by the appropriate side chain of chemical bonds or feature on main polymer chain
The reaction of side base, the product referred to as graft copolymer formed by grafting or graft reaction.
Heretofore described " nylon " is translated as nylon again.English name Polyamide (abbreviation PA), is molecular backbone
It is upper containing recurring amide radical group-[NHCO]-thermoplastic resin general name.Including aliphatic PA, aliphatic-aromatic race PA and aromatic series
PA.Wherein, aliphatic PA is wide in variety, and yield is big, is widely used, depending on its name is by the specific carbon number of synthon.Buddhist nun
Kind included by dragon has nylon 6, nylon66 fiber, nylon 11, nylon 12, NYLON610, nylon 612, nylon 1010, nylon 46, Buddhist nun
Dragon 7, nylon 9, nylon 13, nylon 6I, nylon 9 T and, nylon MXD 6 etc.
Heretofore described " antioxidant " is a class chemical substance, in the presence of it is only a small amount of in polymeric system,
Can delay or suppress the carrying out of polymer oxidizing process, so that prevent the aging of polymer and extend its service life, and quilt
Referred to as " age resistor ".Such as [four (3,5- di-tert-butyl-hydroxy phenyls) propionic acid] pentaerythritol ester (antioxidant 1010), 3-
(3,5- di-t-butyl -4- hydroxyls) propylene octadecyl ester (antioxidant 1076), N, N'- couples-(3- (3,5- di-t-butyl -4- hydroxy benzenes
Base) propiono) hexamethylene diamine (antioxidant 1098), 2,6- di-t-butyl -4- cresols (antioxidant 264), 2,4,6- tri-butyl benzenes
Phenol (antioxidant 246), (2,4- di-tert-butyl-phenyls) tris phosphite (irgasfos 168) etc..
As background technology is introduced, existing extruder technique is only capable of simply passing through Graft Polyolefin with nylon
The problem that extruder is granulated, the present invention provides a kind of preparation method of the nucleocapsid nylon toughener based on extruder technique.
In a kind of exemplary embodiment of the invention, there is provided a kind of nucleocapsid nylon toughener based on extruder technique
Preparation method, extruder is put into after thermoplastic polyolefin elastomer and polyolefin are well mixed, and the temperature for controlling extruder is
130~170 DEG C, wherein, in terms of mass fraction, 5~95 parts of the thermoplastic polyolefin elastomer, 95~5 parts of the polyolefin,
Double bond is not contained in the thermoplastic polyolefin elastomer and the polyolefin.
The present invention, first, using thermoplastic polyolefin elastomer and polyolefin as raw material, and controls the temperature of extruder
Be 130~170 DEG C, by adjusting the fluidity of molten of thermoplastic elastomer (TPE) and polyolefin, thermoplastic polyolefin elastomer it is molten
Liquid flowability is good, and the fluidity of molten of polyolefin is low so that when raw material is blended in an extruder, thermoplastic polyolefin elastomer energy
Enough cladding polyolefin well such that it is able to form the core-shell type with thermoplastic polyolefin elastomer as shell, with polyolefin as core
Structure.Secondly, the present invention is by it is demonstrated experimentally that the nylon toughener energy of the shell core formula structure prepared using the raw material under the ratio
The impact property of nylon material is enough significantly improved, while reducing the fall of the indexs such as tensile strength, modulus, can realize increasing
The balance of toughened nylon material toughness and intensity.3rd, double bond is not contained in the raw material that the present invention is used, this is because use contains
The weatherability of toughener prepared by the raw material for having double bond is poor, especially intolerant to ultraviolet, by ultraviolet irradiation so that prepared by the toughener
Nylon material intensity decline, its colour changed into yellow, influence nylon material overall performance；And to eliminate double bond influence, just need
Adding initiator makes double-bond polymerization, but the polymerization of double bond, can crosslink polyolefin, so as to reduce nylon toughener
Processability, improves production cost；Initiator is added, processing step can be increased so that the production technology time increases；Initiator plus
Entering amount can also influence crosslinking degree, so that complex manufacturing is changeable.Contain double bond in raw material simultaneously, shell is bonded by chemistry
It is connected on core, chemical bond has certain rigidity so that the more similar hair brush structure of the core shell structure, reduces the covering property of shell,
So that toughening effect reduction；The present invention both improves weather resisteant using not double bond containing raw material, and initiator need not be added again, subtracts
Few operation, moreover it is possible to so that shell coats core completely, so as to improve the toughening effect of toughener.
In order to increase the dispersing uniformity of thermoplastic polyolefin elastomer and polyolefin, thermoplastic polyolefin elastomer is improved
The effect of polyolefin is coated, present embodiment is preferred, is mixed using high-speed mixer.High-speed mixer switches on power,
Setting incorporation time, Push switch, makes material reciprocating by machine driving to obtain well mixed product, and it is applied to
The mixing of the powder or granulated material of the industries such as chemical industry.The apparatus structure is reasonable, simple, operate closed, input and output material conveniently, just
In cleaning.High-speed mixer is vertical mixer, with simple structure, compact, floor space be small, the low advantage of power consumption.
The thermal source of high-speed mixer obtains heat by steam, electrical heating and mixed material from friction generates heat, mixes material and keeps equal
Even property is good, dispersed height.
In order to ensure dispersing uniformity, while reducing energy consumption, the production time is saved, present embodiment is further preferred
, the time for using high-speed mixer to mix is 30~35min.
In order to preferably prepare the nylon toughener of complete core-shell structure, present embodiment is preferred, the extrusion
10~250 revs/min of owner's screw speed, 10~60 revs/min of feed screw rotating speed.
Because the material after extrusion cannot be used directly, so present embodiment is preferred, the material after extruder extrusion
Sequentially pass through traction, cooling, drying, pelletizing.Nylon toughener particle, convenient use can be prepared.
When nylon toughener is prepared, present embodiment is preferred, and the thermoplastic polyolefin elastomer is maleic anhydride
One kind in grafted ethene octene copolymer (POE-g-MAH), maleic anhydride grafted ethene propylene copolymer (EPR-g-MAH) or
Two kinds.Maleic anhydride has more preferable plasticization effect as plasticizer, the TPO elasticity being grafted using maleic anhydride
The toughening effect of toughener prepared by body is more preferable.
When nylon toughener is prepared, present embodiment is preferred, and the polyolefin is low density polyethylene (LDPE) (LDPE), height
Density polyethylene (HDPE), LLDPE (LLDPE), polypropylene (PP), ethylene propylene copolymer (EPR), ethene
One or more in octene copolymer (POE).These polyolefin costs are relatively low, can more preferably reduce being prepared into for toughener
This.
In order to realize the balance of nylon material toughness and strength character, prepared present embodiments provide for a kind of above method
Nylon toughener.
In order to improve the impact property of nylon material, while reducing the fall of intensity and modulus index, this embodiment party
Formula also provide a kind of above-mentioned nylon toughener in nylon material or prepare nylon material in application.
In order to implement the balance of nylon material toughness and strength character, nylon is prepared present embodiments provide for one kind
The method of material, above-mentioned nylon toughener, nylon, antioxidant are put into extruder and are extruded.
Preferably, in terms of mass fraction, 4.9~40.0 parts of nylon 9,5~50 parts of above-mentioned nylon toughener, antioxidant 0.1
~10 parts.The mechanical index such as impact strength, the tensile strength of tenacity increased nylon can preferably be balanced using the formula.
For the nylon material that processability is excellent, present invention also offers a kind of preparation side of preferred nylon material
Method, just nylon, above-mentioned nylon toughener and antioxidant mix in high-speed mixer, then mixed material are put into crowded
Go out in machine and extruded.Can be that material mixing keeps that uniformity is good, dispersed height using high-speed mixer, then using extruder
Increase the uniform of plasticizing and mixing, be then molded using mouth mold, increase nylon, nylon toughener and antioxidant it is compatible
Property, the mechanical property of nylon material is better balanced.
In order to increase the outward appearance of the nylon material of preparation and make tenacity increased nylon commercialization, increase enterprise profit, this embodiment party
Formula is preferred, and the material after extruder extrusion sequentially passes through traction, cooling, drying, pelletizing.
For the mechanical property of further balanced nylon material, present embodiment is preferred, use the parameter of extruder for：
Between 170 DEG C~300 DEG C of temperature, 10~250 revs/min of driving screw rotating speed, 10~60 revs/min of feed screw rotating speed.
It is currently preferred when tenacity increased nylon is prepared, the nylon be nylon 6, nylon66 fiber, nylon 46, NYLON610,
One or more in nylon 612, nylon 9, nylon 11, nylon 12, nylon 1010, Nylon 1012, nylon 1212.Make toughness reinforcing Buddhist nun
The imperial scope of application is wider.
Currently preferred when tenacity increased nylon is prepared, the antioxidant is [four (3,5- di-t-butyl -4- hydroxy benzenes
Base) propionic acid] pentaerythritol ester (antioxidant 1010), 3- (3,5- di-t-butyl -4- hydroxyls) propylene octadecyl ester (antioxidant 1076),
N, N'- couple-(3- (3,5- di-tert-butyl-hydroxy phenyls) propiono) hexamethylene diamine (antioxidant 1098), 2,6- di-t-butyls -4-
Cresols (antioxidant 264), 2,4,6- tri-butyl-phenols (antioxidant 246), (2,4- di-tert-butyl-phenyls) tris phosphite are (anti-
Oxygen agent 168) in one or more.These discolorations of antioxidant 1. are low, do not interfere with the outward appearance effect of tenacity increased nylon finished product
Really；2. volatility is small, does not interfere with the loss amount of antioxidant in nylon；3. dissolubility is good；4. stability is high, ensure that toughness reinforcing
Antioxidant is long-lasting in nylon.
Present embodiment additionally provides nylon material prepared by a kind of preparation method of above-mentioned nylon material.The nylon material
Toughness of material it is preferable with strength character, with better performance balance quality.
In order that obtaining those skilled in the art can clearly understand the technical scheme of the application, below with reference to tool
The embodiment of body describes the technical scheme of the application in detail with comparative example.
Embodiment 1：Comparative example
Weigh HDPE3 parts (weight portion, similarly hereinafter, Du Pont 50045E), maleic anhydride grafted ethene octene copolymer (Du Pont,
N493) 12 parts, 81 parts of nylon 6 (Yueyang petrochemical industry, YH800), 4.0 parts of antioxidant 1010 (BASF), by above-mentioned raw materials at a high speed
In mixer mix 30 minutes, by said mixture add extruder hopper in, between 220 DEG C~260 DEG C, driving screw rotating speed
150 revs/min, reacted under the conditions of 50 revs/min of feed screw rotating speed, extrudate is by drawing, cooling down, dry, pelletizing,
Obtain tenacity increased nylon particle.
Embodiment 2：
HDPE20 parts (Du Pont, 50045E), 80 parts of maleic anhydride grafted ethene octene copolymer (Du Pont, N493) are weighed,
HDPE, maleic anhydride grafted ethene octene copolymer are mixed 30 minutes in high-speed mixer, said mixture is added and is squeezed
Go out in machine hopper, each area's temperature of extruder between 140 DEG C~160 DEG C, 150 revs/min of driving screw rotating speed, feed screw rotating speed
40 revs/min, extrudate obtains the toughener particle of core shell structure by traction, cooling, dry, pelletizing.Weigh (the high mountain of nylon 6
Positive petrochemical industry, YH800) 81 parts, 15 parts of hud typed toughener, 4.0 parts of antioxidant 1010, mix 30 minutes in high-speed mixer,
It is put into extruder hopper, between 220 DEG C~260 DEG C, 150 revs/min of driving screw rotating speed, 50 revs/min of feed screw rotating speed
Reacted under the conditions of clock, extrudate obtains tenacity increased nylon particle by traction, cooling, dry, pelletizing.
Embodiment 3：
Weigh LDPE20 parts (Mitsubishi's petrochemical industry, EC70), maleic anhydride grafted ethene octene copolymer (Du Pont, N493) 80
Part, LDPE, maleic anhydride grafted ethene octene copolymer are mixed 30 minutes in high-speed mixer, said mixture is added
In extruder hopper, between 140 DEG C~160 DEG C, 150 revs/min of driving screw rotating speed, feed screw turns each area's temperature of extruder
40 revs/min of speed, extrudate obtains the toughener particle of core shell structure by traction, cooling, dry, pelletizing.Weigh nylon 6
81 parts of (Yueyang petrochemical industry, YH800), 15 parts of hud typed toughener, 4.0 parts of antioxidant 1010, mix 30 points in high-speed mixer
Clock, is put into extruder hopper, between 220 DEG C~260 DEG C, 150 revs/min of driving screw rotating speed, 50 turns of feed screw rotating speed/
Reacted under the conditions of minute, extrudate obtains tenacity increased nylon particle by traction, cooling, dry, pelletizing.
Embodiment 4：Comparative example
Weigh HDPE3 parts (Du Pont 50045E), 12 parts of maleic anhydride grafted ethene octene copolymer (Du Pont, N493), Buddhist nun
81 parts of imperial 66 (Shen Ma groups, EPR27), 4.0 parts of antioxidant 1010 (BASF), above-mentioned raw materials are mixed in high-speed mixer
30 minutes, by said mixture add extruder hopper in, between 250 DEG C~270 DEG C, 150 revs/min of driving screw rotating speed,
Reacted under the conditions of 50 revs/min of feed screw rotating speed, extrudate obtains toughness reinforcing Buddhist nun by traction, cooling, dry, pelletizing
Imperial particle.
Embodiment 5：
HDPE20 parts (Du Pont, 50045E), 80 parts of maleic anhydride grafted ethene octene copolymer (Du Pont, N493) are weighed,
HDPE, maleic anhydride grafted ethene octene copolymer are mixed 30 minutes in high-speed mixer, said mixture is added and is squeezed
Go out in machine hopper, each area's temperature of extruder between 140 DEG C~160 DEG C, 150 revs/min of driving screw rotating speed, feed screw rotating speed
40 revs/min, extrudate obtains the toughener particle of core shell structure by traction, cooling, dry, pelletizing.Weigh nylon66 fiber
81 parts of (Shen Ma groups, EPR27), 15 parts of hud typed toughener, 4.0 parts of antioxidant 1010, mix 30 points in high-speed mixer
Clock, is put into extruder hopper, between 250 DEG C~270 DEG C, 150 revs/min of driving screw rotating speed, 50 turns of feed screw rotating speed/
Reacted under the conditions of minute, extrudate obtains tenacity increased nylon particle by traction, cooling, dry, pelletizing.
Embodiment 6：
Weigh LDPE20 parts (Mitsubishi's petrochemical industry, EC70), maleic anhydride grafted ethene octene copolymer (Du Pont, N493) 80
Part, LDPE, maleic anhydride grafted ethene octene copolymer are mixed 30 minutes in high-speed mixer, said mixture is added
In extruder hopper, between 140 DEG C~160 DEG C, 150 revs/min of driving screw rotating speed, feed screw turns each area's temperature of extruder
40 revs/min of speed, extrudate obtains the toughener particle of core shell structure by traction, cooling, dry, pelletizing.Weigh nylon66 fiber
81 parts of (Shen Ma groups, EPR27), 15 parts of hud typed toughener, 4.0 parts of antioxidant 1010, mix 30 points in high-speed mixer
Clock, is put into extruder hopper, between 250 DEG C~270 DEG C, 150 revs/min of driving screw rotating speed, 50 turns of feed screw rotating speed/
Reacted under the conditions of minute, extrudate obtains tenacity increased nylon particle by traction, cooling, dry, pelletizing.
The toughened Nylon 6 mechanical experimental results of embodiment 1~3 are as shown in the table：
Be can see from the toughened Nylon 6 mechanical experimental results of embodiment 1~3, by maleic anhydride be grafted POE,
Tenacity increased nylon (embodiment 1) tensile strength and impact strength that HDPE, nylon blending extrusion are obtained are both less than under same composition
The tenacity increased nylon result of embodiment 2, and using the nylon material tensile strength of HDPE toughness reinforcings also below using nucleocapsid in embodiment 1
Structure, LDPE are tenacity increased nylon (embodiment 3) tensile strength of core, are illustrated under the conditions of same composition, the toughness reinforcing of core shell structure
Agent can significantly improve tenacity increased nylon impact property, while other mechanical index falls reduction such as tensile strength, shows
Good toughness and strength balance.
The Toughed nylon66 mechanical experimental results of embodiment 4~6 are as shown in the table：
From the Toughed nylon66 mechanical experimental results of embodiment 4~6 it can also be seen that toughening agent with core-shell structure is increasing
During toughened nylon 66 material, the characteristics of equally show good toughness and strength balance.
Although above-described embodiment is described to specific embodiment of the invention, not to invention protection domain
Limitation, one of ordinary skill in the art should be understood that on the basis of the technical scheme of invention those skilled in the art need not pay
The various modifications or deformation made by going out creative work are still within the scope of the present invention.
Claims (10)
1. a kind of preparation method of the nucleocapsid nylon toughener based on extruder technique, it is characterized in that, by TPO bullet
Extruder is put into after gonosome and polyolefin are well mixed, the temperature of extruder is controlled for 130~170 DEG C, wherein, with mass fraction
Meter, 5~95 parts of the thermoplastic polyolefin elastomer, 95~5 parts of the polyolefin, the thermoplastic polyolefin elastomer and institute
State and do not contain double bond in polyolefin.
2. the preparation method of nucleocapsid nylon toughener as claimed in claim 1, it is characterized in that, mixed using high-speed mixer
Close.
3. the preparation method of nucleocapsid nylon toughener as claimed in claim 2, it is characterized in that, mixed using high-speed mixer
Time is 30~35min.
4. the preparation method of nucleocapsid nylon toughener as claimed in claim 1, it is characterized in that, the extruder main screw speed
10~250 revs/min, 10~60 revs/min of feed screw rotating speed.
5. a kind of any described method of Claims 1 to 4 prepares nylon toughener.
6. application of the nylon toughener described in a kind of claim 5 in nylon material or in preparing nylon material.
7. a kind of preparation method of nylon material, it is characterized in that, by the nylon toughener described in claim 5, nylon, antioxidant
Extruder is put into be extruded.
8. preparation method as claimed in claim 7, it is characterized in that, in terms of mass fraction, 4.9~40.0 parts of nylon 9, right will
Seek 5~50 parts of nylon toughener, 0.1~10 part of the antioxidant described in 5.
9. preparation method as claimed in claim 7, it is characterized in that, use the parameter of extruder for：170 DEG C~300 DEG C of temperature
Between, 10~250 revs/min of driving screw rotating speed, 10~60 revs/min of feed screw rotating speed.
10. the nylon material that prepared by a kind of preparation method of any described nylon material of claim 7~8.
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| CN113831729A (en) * | 2020-06-24 | 2021-12-24 | 合肥杰事杰新材料股份有限公司 | PA6 composite material and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113831729A (en) * | 2020-06-24 | 2021-12-24 | 合肥杰事杰新材料股份有限公司 | PA6 composite material and preparation method thereof |
| CN113831729B (en) * | 2020-06-24 | 2023-04-07 | 合肥杰事杰新材料股份有限公司 | PA6 composite material and preparation method thereof |
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