CN108570227A - A kind of low temperature resistant ultra-toughness halogen-free reinforced nylon alloy and preparation method thereof - Google Patents

A kind of low temperature resistant ultra-toughness halogen-free reinforced nylon alloy and preparation method thereof Download PDF

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Publication number
CN108570227A
CN108570227A CN201710828328.6A CN201710828328A CN108570227A CN 108570227 A CN108570227 A CN 108570227A CN 201710828328 A CN201710828328 A CN 201710828328A CN 108570227 A CN108570227 A CN 108570227A
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low temperature
temperature resistant
area
reinforced nylon
resistant ultra
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王兆波
谢永光
李晓宇
郭言朝
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Kelong Shandong New Materials Ltd By Share Ltd
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Kelong Shandong New Materials Ltd By Share Ltd
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    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L77/00Compositions of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Compositions of derivatives of such polymers
    • C08L77/02Polyamides derived from omega-amino carboxylic acids or from lactams thereof
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25Component parts, details or accessories; Auxiliary operations
    • B29C48/92Measuring, controlling or regulating
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2948/00Indexing scheme relating to extrusion moulding
    • B29C2948/92Measuring, controlling or regulating
    • B29C2948/92504Controlled parameter
    • B29C2948/9258Velocity
    • B29C2948/9259Angular velocity
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2948/00Indexing scheme relating to extrusion moulding
    • B29C2948/92Measuring, controlling or regulating
    • B29C2948/92504Controlled parameter
    • B29C2948/92704Temperature
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2201/00Properties
    • C08L2201/02Flame or fire retardant/resistant
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2201/00Properties
    • C08L2201/22Halogen free composition
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00Polymer mixtures characterised by other features
    • C08L2205/03Polymer mixtures characterised by other features containing three or more polymers in a blend
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00Polymer mixtures characterised by other features
    • C08L2205/03Polymer mixtures characterised by other features containing three or more polymers in a blend
    • C08L2205/035Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2207/00Properties characterising the ingredient of the composition
    • C08L2207/06Properties of polyethylene
    • C08L2207/062HDPE

Abstract

The invention discloses a kind of low temperature resistant ultra-toughness halogen-free reinforced nylon alloys and preparation method thereof, and the present invention includes the component of following weight percentage:Nylon resin 50 80%, toughener 10 20%, reinforcing agent 2 10%, fire retardant 5 10%, antioxidant 0.1 1%, light stabilizer 0.2 2%, fire retarding synergist 1 3%, processing aid 1 3%.The nylon alloy flame retardant property of the present invention is higher than 70MPa up to V0 grades, tensile strength, and room temperature simply supported beam notch impact strength is up to 70KJ/m2, 55 DEG C of low temperature is up to 20KJ/m2.Effective flame retardant property, tensile property and the impact property for balancing product, good combination property, the requirement for effectively meeting China's extremely frigid zones and other low temperature resistant aspects of extreme environment special engineering plastics, can be widely applied to the fields such as automobile, electronics, machinery, rail traffic, sports apparatus.

Description

A kind of low temperature resistant ultra-toughness halogen-free reinforced nylon alloy and preparation method thereof
Technical field
The invention belongs to polymer modification field, more particularly, to a kind of low temperature resistant ultra-toughness halogen-free nylon alloy and its Preparation method.
Background technology
Nylon is a kind of using wide engineering plastics, has good mechanical property, heat resistance, wearability, resistance toization Learn solvent borne, self lubricity and certain anti-flammability, processing performance is excellent, can integrated molding complexity structure member, it is wide It is general to be used for the fields such as automobile, electronic apparatus, machinery, rail traffic, sports apparatus.But since it is influenced by environment and temperature, Performance, which will appear, significantly to be changed, its development and application are hindered, its comprehensive performance can be made obviously to be carried its modification It rises.
With the development for the high-end equipment manufacture that country carries forward vigorously, to the items of modification of nylon and other engineering plastics Performance requirement is also higher and higher, but the performances such as the modification of nylon product of most domestic productions is low temperature resistant, toughness, mechanical strength are not Coordinate, is embodied in:Low temperature resistant, high tenacity product bad mechanical strength, the poor toughness of high mechanical properties product;If it is intended to reaching To flame retardant effect, it is necessary to fire retardant be added, however the addition of fire retardant can lead to the power such as impact strength, the bending strength of nylon Performance is learned to decline.Main cause is that synergistic and compatibility are poor between each function additive, during product use Fragile, the service life is very short.
Currently, domestic patent CN1290594A, CN101870811A etc. discloses the increasing of maleic anhydride stem grafting polyolefin material Tough nylon preparation method enhances the toughness of nylon by the way that more polyolefin is added, but facts have proved as polyolefin adds The mechanical strength of the increase of amount, product drastically declines, and product comprehensive performance is bad.CN102690512B、CN102558843B Etc. disclosing with fiberglass reinforced tenacity increased nylon preparation method, although products obtained therefrom tensile strength is higher, simply supported beam notch shock Intensity is poor, and the notch impact strength under especially -40 DEG C of low temperature conditions only has 10KJ/m2Left and right.
To solve the above problems, CN103421309B disclose a kind of automobile cold-resistance super tough reinforced nylon 6 material and its Preparation method solves toughener and glass fibre interface and toughener and nylon circle by preparing modified presoma early period - 40 DEG C of notch impact strength promotions have been arrived 20KJ/m by the consistency problem between face2Left and right, but this method needs modified forerunner The performance of product is just relatively good when the additive amount of body wants relatively high, and the flame retardant effect of product and bad, and overall performance is not flat enough Weighing apparatus,
The special engineering plastics of other extreme environments such as extremely frigid zones and south poles used in China, for product Balance quality it is more demanding, existing nylon product is in ultralow temperature or that there are impact resistances is excessively poor, easy to crack, uses The problem of short life, or there are the unmatched problem of the performances such as strength and toughness and anti-flammability, China can not be adapted to high and coldly Particular/special requirement of the area to nylon product.
Invention content
The purpose of the present invention is overcoming above-mentioned defect existing in the prior art, a kind of the resistance to low of high comprehensive performance is provided Warm ultra-toughness Zero halogen flame resistance alloy, the product flame retardant property is up to V0 grades, and room temperature simply supported beam notch impact strength is up to 70KJ/ m2, -55 DEG C of low temperature is up to 20KJ/m2.The perfect tensile property and impact property for balancing product.Meet China's extremely frigid zones And the requirement of other low temperature resistant aspects of extreme environment special engineering plastics.
It is simple and convenient it is a further object of the present invention to provide the preparation method of above-mentioned low temperature resistant ultra-toughness Zero halogen flame resistance alloy, Production efficiency is high.
In order to solve the above technical problems, present invention employs following technical solutions:
A kind of low temperature resistant ultra-toughness halogen-free reinforced nylon alloy, including following components and its weight percentage:Nylon resin 50-80%, toughener 10-20%, reinforcing agent 2-10%, fire retardant 5-10%, antioxidant 0.1-1%, light stabilizer 0.2- 2%, fire retarding synergist 1-3%, processing aid 1-3%;The toughener is the polyolefin elastic resin of maleic acid grafting;It is described Reinforcing agent is the vistanex enhanced with fibrous material;The fire retarding synergist is polyol.
The low temperature resistant ultra-toughness halogen-free reinforced nylon alloy, wherein the weight of fibrous material in the vistanex Amount content is 40%-60%.
The low temperature resistant ultra-toughness halogen-free reinforced nylon alloy, wherein the vistanex is PE, PP, POE composite wood The mixture of one or more of material, the fibrous material are one in alkali-free glass fibre, basalt fibre or carbon fiber Kind or several mixtures.
The low temperature resistant ultra-toughness halogen-free reinforced nylon alloy, wherein the polyolefin elastic resin is polyethylene, poly- third The mixture of one or more of alkene and polyethylen-octene.
The low temperature resistant ultra-toughness halogen-free reinforced nylon alloy, wherein the fire retardant is nitrogenated flame retardant, phosphorous flame-retardant One or more of agent, expansion type flame retardant mixture;The fire retarding synergist is pentaerythrite.
The low temperature resistant ultra-toughness halogen-free reinforced nylon alloy, wherein the antioxidant is phenols, thioesters, gold Belong to one or more of ion passivation dosage form antioxidant mixture.As antioxidant 1010,1076,1098, AO-80,720, 168, BHT, Finox 300 or Finox 1024 etc..
The low temperature resistant ultra-toughness halogen-free reinforced nylon alloy, wherein the light stabilizer is carbon black, zinc chloride, two One or more of titanium oxide mixture.
The low temperature resistant ultra-toughness halogen-free reinforced nylon alloy, wherein the processing aid is EBS lubricants, oleic acid acyl Amine or erucyl amide.
The low temperature resistant ultra-toughness halogen-free reinforced nylon alloy, wherein the relative viscosity of the nylon resin is 2.0-3.4 Nylon 6, nylon66 fiber or the two mixture.
The low temperature resistant ultra-toughness halogen-free reinforced nylon alloy, wherein the weight percentage of the toughener is 15- 20%, preferably 15%;The weight percentage of the reinforcing agent be 5-10%, preferably 8%.
The low temperature resistant ultra-toughness halogen-free reinforced nylon alloy, wherein preferred, the toughener is PE-g-MAH, PP- G-MAH or POE-g-MAH;The reinforcing agent is PE, PP or POE;The fire retardant is MCA, and the fire retarding synergist is season penta Tetrol;The antioxidant is antioxidant 1010, and the light stabilizer is carbon black, the processing aid is EBS lubricating oil.
The invention also discloses the preparation methods of above-mentioned low temperature resistant ultra-toughness halogen-free reinforced nylon alloy comprising following step Suddenly:
(1) each component is weighed up by above-mentioned weight percent, is sent into the mixing of high-speed mixer high speed;
(2) material after mixing adds twin-screw extrude extrusion stretching and granulation;
The processing technology of double screw extruder is:Screw speed 50-600r/min;One to three area's temperature is:220~270 DEG C, four to six area's temperature be:230~280 DEG C, seven to nine area's temperature be:220~280 DEG C.
Preferably, the processing technology of double screw extruder is:One to three area's temperature is:220~240 DEG C, four to six area's temperature Degree is:230~250 DEG C, seven to nine area's temperature be:220~250 DEG C, 500 revs/min of driving screw rotating speed, feed screw rotating speed 50 Rev/min.
As a result of above technical scheme, the present invention has following technique effect:
1, low temperature resistant ultra-toughness halogen-free reinforced nylon alloy of the invention, by the way that a small amount of gathering with fibrous material enhancing is added Olefin resin as reinforcing agent, suitable maleic anhydride be grafted polyolefin elastic resin as toughener, the two compatibility pole Good, toughener has preferable covering property and peptizaiton to reinforcing agent;Fire-retardant synergistic is used as by polyol simultaneously Agent cooperation fire retardant be used together, effectively reduce because addition fire retardant caused by nylon mechanical property decline, each auxiliary agent it Between act synergistically, between toughener interface, reinforcing agent interface, fire retardant interface, fire retarding synergist interface and nylon interface all Preferable compatibility has been arrived, component is uniformly dispersed, the active balance tensile property of product, shock resistance and flame retardant property, Synergistic excellent performance obtains the modification with preferable flame retardant effect, stronger tensile resistance and stronger low-temperature impact resistance Nylon product.The product flame retardant property is up to V0 grades, and tensile strength is more than 70MPa, and room temperature simply supported beam notch impact strength can Up to 70KJ/m2, -55 DEG C of low temperature is up to 20KJ/m2, product excellent combination property, production cost is relatively low.
2, low temperature resistant ultra-toughness halogen-free reinforced nylon alloy of the invention, cold tolerance is splendid, and -55 DEG C of low temperature impact properties are good It is good and very stable, it can be widely applied to the fields such as high ferro, automobile, electronics, machinery, rail traffic, sports apparatus.
3, the preparation method of low temperature resistant ultra-toughness halogen-free reinforced nylon alloy of the invention, simple for process, easy to operate, production effect Rate is high.
Specific implementation mode
With reference to specific embodiment, the present invention is described in detail, and following embodiment is only for convenience of people in the art Member understands technical solution of the present invention, realizes or uses the present invention done explanation, does not limit protection scope of the present invention with this.
Such as not specified in the present invention, used raw material and equipment etc. are commercially available or commonly used in the art.
Method in embodiment is unless otherwise specified the conventional method of this field, the making and survey of test bars Method for testing is all made of 20041 series standards of GB/T and is detected, such as GB/T 20041.23-2009, GB/T 20041.1-2005 Deng.
Signified number is parts by weight in following embodiment.Processing aid uses EBS lubricating oil, oleamide or erucic acid Amide.
In following embodiment, double screw extruder process conditions are:Screw speed about 50~600r/min;One to three area's temperature Degree is:220~270 DEG C, four to six area's temperature be:230~280 DEG C, seven to nine area's temperature be:220~280 DEG C.
Specific embodiment 1:
Comparative example 1:
Nylon 6 (newly beautiful can reach M2500).
Embodiment 1.1:
73 parts of nylon 6 (newly beautiful can reach M2500), 10 parts of PE-g-MAH (modeling Thailand ST-01), (Sichuan refines 7 parts of MCA Work), 1 part of antioxidant (1010), 1 part of light stabilizer (carbon black) and 1 part of processing aid, 1.5 parts of fire retarding synergists (pentaerythrite), After mixing 10min in high-speed mixer, it is put into double screw extruder hopper, one to three area's temperature is:220~240 DEG C, four It is to six area's temperature:230~250 DEG C, seven to nine area's temperature be:220~250 DEG C, 500 revs/min of driving screw rotating speed, feeding spiral shell It is reacted under the conditions of 50 revs/min of bar rotating speed, extrudate is by traction, cooling, pelletizing, drying.
Embodiment 1.2:
73 parts of nylon 6 (newly beautiful can reach M2500), 15 parts of PE-g-MAH (modeling Thailand ST-01), (Sichuan refines 7 parts of MCA Work), 1 part of antioxidant (1010), 1 part of light stabilizer (carbon black) and 1 part of processing aid, 1.5 parts of fire retarding synergists (pentaerythrite), After mixing 10min in high-speed mixer, it is put into double screw extruder hopper, one to three area's temperature is:220~240 DEG C, four It is to six area's temperature:230~250 DEG C, seven to nine area's temperature be:220~250 DEG C, 500 revs/min of driving screw rotating speed, feeding spiral shell It is reacted under the conditions of 50 revs/min of bar rotating speed, extrudate is by traction, cooling, pelletizing, drying.
Embodiment 1.3:
73 parts of nylon 6 (newly beautiful can reach M2500), 20 parts of PE-g-MAH (modeling Thailand ST-01), (Sichuan refines 7 parts of MCA Work), 1 part of antioxidant (1010), 1 part of light stabilizer (carbon black) and 1 part of processing aid, 1.5 parts of fire retarding synergists (pentaerythrite), After mixing 10min in high-speed mixer, puts twin-screw and enter in extruder hopper, one to three area's temperature is:220~240 DEG C, four It is to six area's temperature:230~250 DEG C, seven to nine area's temperature be:220~250 DEG C, 500 revs/min of driving screw rotating speed, feeding spiral shell It is reacted under the conditions of 50 revs/min of bar rotating speed, extrudate is by traction, cooling, pelletizing, drying.
Embodiment 1.4:
73 parts of nylon 6 (newly beautiful can reach M2500), 25 parts of PE-g-MAH (modeling Thailand ST-01), (Sichuan refines 7 parts of MCA Work), 1 part of antioxidant (1010), 1 part of light stabilizer (carbon black) and 1 part of processing aid, 1.5 parts of fire retarding synergists (pentaerythrite), After mixing 10min in high-speed mixer, it is put into double screw extruder hopper, one to three area's temperature is:220~240 DEG C, four It is to six area's temperature:230~250 DEG C, seven to nine area's temperature be:220~250 DEG C, 500 revs/min of driving screw rotating speed, feeding spiral shell It is reacted under the conditions of 50 revs/min of bar rotating speed, extrudate is by traction, cooling, pelletizing, drying.
Product (no reinforcing agent) performance test data of 1 toughener different amounts of table compares
From table 1, comparative example 1 and embodiment 1.1-1.4 test datas can be seen that between 220 DEG C~250 DEG C, main 500 revs/min of screw speed carries out reactive extrursion under the conditions of 50 revs/min of feed screw rotating speed, obtained toughened Nylon 6 production Product, product flame retardant property reach V0/S4 grades;In addition, formula 1.2/1.3/1.4 of the toughener usage amount 15% or more, The toughened Nylon 6 notch impact strength of preparation is ten times or more of pure nylon 6 resin, has all reached ultra-toughness grade, and at -55 DEG C Under, still there is very high shock resistance, but increasing with toughener usage amount, the tensile strength of product declines very bright It is aobvious.
Specific embodiment 2:
Comparative example 2:
With the content of embodiment 1.2.
Embodiment 2.1:
69 parts of nylon 6 (newly beautiful can reach M2500), 15 parts of PE-g-MAH (modeling Thailand ST-01), 2 parts of HDPE-GF60 (HIFILL), 9 parts of MCA (Sichuan fine chemistry industry), 1 part of antioxidant (1010), 1 part of light stabilizer (carbon black) and 1 part of processing aid, 1.5 parts of fire retarding synergists (pentaerythrite) are put into double screw extruder hopper, one after mixing 10min in high-speed mixer It is to three area's temperature:220~240 DEG C, four to six area's temperature be:230~250 DEG C, seven to nine area's temperature be:220~250 DEG C, 500 revs/min of driving screw rotating speed is reacted under the conditions of 50 revs/min of feed screw rotating speed, extrudate by traction, it is cooling, Pelletizing, drying.
Embodiment 2.2:
67 parts of nylon 6 (newly beautiful can reach M2500), 15 parts of PE-g-MAH (modeling Thailand ST-01), 4 parts of HDPE-GF60 (HIFILL), 9 parts of MCA (Sichuan fine chemistry industry), 1 part of antioxidant (1010), 1 part of light stabilizer (carbon black) and 1 part of processing aid, 1.5 parts of fire retarding synergists (pentaerythrite) are put into double screw extruder hopper, one after mixing 10min in high-speed mixer It is to three area's temperature:220~240 DEG C, four to six area's temperature be:230~250 DEG C, seven to nine area's temperature be:220~250 DEG C, 500 revs/min of driving screw rotating speed is reacted under the conditions of 50 revs/min of feed screw rotating speed, extrudate by traction, it is cooling, Pelletizing, drying.
Embodiment 2.3:
65 parts of nylon 6 (newly beautiful can reach M2500), 15 parts of PE-g-MAH (modeling Thailand ST-01), 6 parts of HDPE-GF60 (HIFILL), 9 parts of MCA (Sichuan fine chemistry industry), 1 part of antioxidant (1010), 1 part of light stabilizer (carbon black) and 1 part of processing aid, 1.5 parts of fire retarding synergists (pentaerythrite) are put into double screw extruder hopper, one after mixing 10min in high-speed mixer It is to three area's temperature:220~240 DEG C, four to six area's temperature be:230~250 DEG C, seven to nine area's temperature be:220~250 DEG C, 500 revs/min of driving screw rotating speed is reacted under the conditions of 50 revs/min of feed screw rotating speed, extrudate by traction, it is cooling, Pelletizing, drying.
Embodiment 2.4:
63 parts of nylon 6 (newly beautiful can reach M2500), 15 parts of PE-g-MAH (modeling Thailand ST-01), 8 parts of HDPE-GF60 (HIFILL), 9 parts of MCA (Sichuan fine chemistry industry), 1 part of antioxidant (1010), 1 part of light stabilizer (carbon black) and 1 part of processing aid, 1.5 parts of fire retarding synergists (pentaerythrite) are put into extruder hopper, one to three area after mixing 10min in high-speed mixer Temperature is:220~240 DEG C, four to six area's temperature be:230~250 DEG C, seven to nine area's temperature be:220~250 DEG C, driving screw 500 revs/min of rotating speed is reacted under the conditions of 50 revs/min of feed screw rotating speed, extrudate by traction, cooling, pelletizing, It is dry.
Embodiment 2.5:
61 parts of nylon 6 (newly beautiful can reach M2500), 15 parts of PE-g-MAH (modeling Thailand ST-01), 10 parts of HDPE-GF60 (HIFILL), 9 parts of MCA (Sichuan fine chemistry industry), 1 part of antioxidant (1010), 1 part of light stabilizer (carbon black) and 1 part of processing aid, 1.5 parts of fire retarding synergists (pentaerythrite), 10min is mixed in high-speed mixer, is put into extruder hopper, one to three area's temperature Degree is:220~240 DEG C, four to six area's temperature be:230~250 DEG C, seven to nine area's temperature be:220~250 DEG C, driving screw turns It is 500 revs/min fast, it is reacted under the conditions of 50 revs/min of feed screw rotating speed, extrudate passes through traction, cooling, pelletizing, does It is dry.
Embodiment 2.6:
56 parts of nylon 6 (newly beautiful can reach M2500), 15 parts of PE-g-MAH (modeling Thailand ST-01), 15 parts of HDPE-GF60 (HIFILL), 9 parts of MCA (Sichuan fine chemistry industry), 1 part of antioxidant (1010), 1 part of light stabilizer (carbon black) and 1 part of processing aid, 1.5 parts of fire retarding synergists (pentaerythrite), 10min is mixed in high-speed mixer, is put into extruder hopper, one to three area's temperature Degree is:220~240 DEG C, four to six area's temperature be:230~250 DEG C, seven to nine area's temperature be:220~250 DEG C, driving screw turns It is 500 revs/min fast, it is reacted under the conditions of 50 revs/min of feed screw rotating speed, extrudate passes through traction, cooling, pelletizing, does It is dry.
Embodiment 2.7:
51 parts of nylon 6 (newly beautiful can reach M2500), 15 parts of PE-g-MAH (modeling Thailand ST-01), 20 parts of HDPE-GF60 (HIFILL), 9 parts of MCA (Sichuan fine chemistry industry), 1 part of antioxidant (1010), 1 part of light stabilizer (carbon black) and 1 part of processing aid, 1.5 parts of fire retarding synergists (pentaerythrite), 10min is mixed in high-speed mixer, is put into extruder hopper, one to three area's temperature Degree is:220~240 DEG C, four to six area's temperature be:230~250 DEG C, seven to nine area's temperature be:220~250 DEG C, driving screw turns It is 500 revs/min fast, it is reacted under the conditions of 50 revs/min of feed screw rotating speed, extrudate passes through traction, cooling, pelletizing, does It is dry.
The properties of product test data of 2 reinforcing agent different amounts of table compares
From table 2, comparative example 2 and embodiment 2.1-2.7 test datas can be seen that using PE-g-MAH modification of nylon 6, Between 220 DEG C~250 DEG C, 500 revs/min of driving screw rotating speed carries out reaction under the conditions of 50 revs/min of feed screw rotating speed and squeezes Go out, adding a small amount of HDPE-GF helps to promote tensile resistance, and at -55 DEG C, still has very high shock resistance, together When, product flame retardant property reaches V0/S4 grades.But (corresponding glass effective content 6 when with HDPE-GF additive amounts being more than 10 parts Part), tensile strength is promoted to become apparent from, on the contrary, toughness data are then drastically to glide.Therefore, when reinforcing agent HDPE-GF usage amounts When being 2-10 parts, product tensile property can be obviously improved, moreover it is possible to keep its shock resistance.
Specific embodiment 3:
Comparative example 3:
Content is the same as embodiment 2.4.
Embodiment 3.1:
73 parts of nylon 6 (newly beautiful can reach M2500), 5 parts of PE-g-MAH (modeling Thailand ST-01), 8 parts of HDPE-GF60 (HIFILL), 9 parts of MCA (Sichuan fine chemistry industry), 1 part of antioxidant (1010), 1 part of light stabilizer (carbon black) and 1 part of processing aid, 1.5 parts it is fire-retardant Synergist (pentaerythrite), 10min is mixed in high-speed mixer, is put into double screw extruder hopper, one to three area's temperature For:220~240 DEG C, four to six area's temperature be:230~250 DEG C, seven to nine area's temperature be:220~250 DEG C, driving screw rotating speed It 500 revs/min, is reacted under the conditions of 50 revs/min of feed screw rotating speed, extrudate is by traction, cooling, pelletizing, drying.
Embodiment 3.2:
68 parts of nylon 6 (newly beautiful can reach M2500), 10 parts of PE-g-MAH (modeling Thailand ST-01), 8 parts of HDPE-GF60 (HIFILL), 9 parts of MCA (Sichuan fine chemistry industry), 1 part of antioxidant (1010), 1 part of light stabilizer (carbon black) and 1 part of processing aid, 1.5 parts of fire retarding synergists (pentaerythrite), 10min is mixed in high-speed mixer, is put into double screw extruder hopper, one to Three area's temperature are:220~240 DEG C, four to six area's temperature be:230~250 DEG C, seven to nine area's temperature be:It is 220~250 DEG C, main 500 revs/min of screw speed is reacted under the conditions of 50 revs/min of feed screw rotating speed, extrudate by traction, it is cooling, cut Grain, drying.
Embodiment 3.3:
58 parts of nylon 6 (newly beautiful can reach M2500), 20 parts of PE-g-MAH (modeling Thailand ST-01), 8 parts of HDPE-GF60 (HIFILL), 9 parts of MCA (Sichuan fine chemistry industry), 1 part of antioxidant (1010), 1 part of light stabilizer (carbon black) and 1 part of processing aid, 1.5 parts of fire retarding synergists (pentaerythrite), 10min is mixed in high-speed mixer, is put into double screw extruder hopper, one to Three area's temperature are:220~240 DEG C, four to six area's temperature be:230~250 DEG C, seven to nine area's temperature be:It is 220~250 DEG C, main 500 revs/min of screw speed is reacted under the conditions of 50 revs/min of feed screw rotating speed, extrudate by traction, it is cooling, cut Grain, drying.
Embodiment 3.4:
53 parts of nylon 6 (newly beautiful can reach M2500), 25 parts of PE-g-MAH (modeling Thailand ST-01), 8 parts of HDPE-GF60 (HIFILL), 9 parts of MCA (Sichuan fine chemistry industry), 1 part of antioxidant (1010), 1 part of light stabilizer (carbon black) and 1 part of processing aid, 1.5 parts of fire retarding synergists (pentaerythrite), 10min is mixed in high-speed mixer, is put into extruder hopper, one to three area's temperature Degree is:220~240 DEG C, four to six area's temperature be:230~250 DEG C, seven to nine area's temperature be:220~250 DEG C, driving screw turns It is 500 revs/min fast, it is reacted under the conditions of 50 revs/min of feed screw rotating speed, extrudate passes through traction, cooling, pelletizing, does It is dry.
Product (having reinforcing agent) performance test data of 3 toughener different amounts of table compares
From table 3, comparative example 3 and embodiment 3.1-3.4 test datas can be seen that HDPE-GF usage amounts as 8 parts, PE- When the dosage of g-MAH is 15 parts (comparative example 3), the toughened Nylon 6 properties of product counterbalance effect is best.Increase the use of PE-g-MAH Amount, then can lead to the quick reduction of tensile strength;The dosage for reducing PE-g-MAH, then can lead to the fast prompt drop of impact strength It is low.
Consolidated statement 1, table 2, table 3 as can be seen that this formula using PE-g-MAH modification of nylon 6,220 DEG C~250 DEG C it Between, 500 revs/min of driving screw rotating speed carries out reactive extrursion under the conditions of 50 revs/min of feed screw rotating speed, adds a small amount of HDPE- GF helps to promote tensile resistance, and at -55 DEG C, still has very high shock resistance, meanwhile, made using pentaerythrite It acts synergistically for product synergist and fire retardant MCA, product flame retardant property reaches V0/S4 grades.Comprehensive Correlation show that toughener adds Dosage 10-20%, reinforcing agent 2-10%, in the range of fire retarding synergist 1-3%, the comprehensive performance of product is very excellent, Middle HDPE-GF additive amounts are 8 parts, PE-g-MAH additive amounts are 15 parts, when 1.5 parts of fire retarding synergist additive amount, product stretch-proof Performance obtains optimal balance with shock resistance.
Above is only an example of the present application, it is not intended to limit this application.For those skilled in the art For, the application can have various modifications and variations.It is all within spirit herein and principle made by any modification, equivalent Replace, improve etc., it should be included within the scope of claims hereof.

Claims (10)

1. a kind of low temperature resistant ultra-toughness halogen-free reinforced nylon alloy, which is characterized in that include the component of following weight percentage:
Nylon resin 50-80%, toughener 10-20%, reinforcing agent 2-10%, fire retardant 5-10%, antioxidant 0.1-1%, Light stabilizer 0.2-2%, fire retarding synergist 1-3%, processing aid 1-3%;
The reinforcing agent is the vistanex enhanced with fibrous material;
The toughener is the polyolefin elastic resin of maleic acid grafting;
The fire retarding synergist is polyol.
2. low temperature resistant ultra-toughness halogen-free reinforced nylon alloy according to claim 1, which is characterized in that
The weight content of fibrous material is 40%-60% in the vistanex.
3. low temperature resistant ultra-toughness halogen-free reinforced nylon alloy according to claim 2, which is characterized in that
The vistanex is the mixture of one or more of polyethylene, polypropylene, retardant POE compound material, the fiber Material is the mixture of one or more of alkali-free glass fibre, basalt fibre or carbon fiber.
4. low temperature resistant ultra-toughness halogen-free reinforced nylon alloy according to claim 1, is characterized in that,
The polyolefin elastic resin is the mixture of one or more of polyethylene, polypropylene and polyethylen-octene; Or the fire retardant is one or more of nitrogenated flame retardant, phosphorus flame retardant, expansion type flame retardant mixture;Or the resistance Combustion synergist is pentaerythrite.
5. low temperature resistant ultra-toughness halogen-free reinforced nylon alloy according to claim 1, which is characterized in that
The antioxidant is one or more of phenols, thioesters, metallic ion passivation dosage form antioxidant mixture;Or The light stabilizer is one or more of carbon black, zinc chloride, titanium dioxide mixture;Or the processing aid is EBS Lubricant, oleamide or erucyl amide.
6. low temperature resistant ultra-toughness halogen-free reinforced nylon alloy according to claim 1, which is characterized in that
The nylon resin is the mixture that relative viscosity is the nylon 6 of 2.0-3.4, nylon66 fiber or the two.
7. according to any low temperature resistant ultra-toughness halogen-free reinforced nylon alloy in claim 1-6, which is characterized in that
The weight percentage of the toughener be 15-20%, preferably 15%;The weight percentage of the reinforcing agent is 5- 10%, preferably 8%.
8. wanting the low temperature resistant ultra-toughness halogen-free reinforced nylon alloy described in 7 according to right, it is characterised in that:
The toughener is PE-g-MAH, PP-g-MAH or POE-g-MAH;The fire retardant is MCA, and the fire retarding synergist is Pentaerythrite;The antioxidant is antioxidant 1010, and the light stabilizer is carbon black, the processing aid is EBS lubrications Oil.
9. a kind of preparation method according to low temperature resistant ultra-toughness halogen-free reinforced nylon alloy according to any one of claims 1-8, It is characterized in that, includes the following steps:
(1) each component is weighed up by above-mentioned weight percent, is sent into the mixing of high-speed mixer high speed;
(2) material after mixing adds twin-screw extrude extrusion stretching and granulation;
The processing technology of double screw extruder is:Feed screw rotating speed 40-60r/min, driving screw rotating speed 400-600r/min;One It is to three area's temperature:220~270 DEG C, four to six area's temperature be:230~280 DEG C, seven to nine area's temperature be:220~280 DEG C.
10. the preparation method of low temperature resistant ultra-toughness halogen-free reinforced nylon alloy according to claim 9, which is characterized in that
The processing technology of double screw extruder is:One to three area's temperature is:220~240 DEG C, four to six area's temperature be:230~ 250 DEG C, seven to nine area's temperature be:220~250 DEG C, 500 revs/min of driving screw rotating speed, 50 revs/min of feed screw rotating speed.
CN201710828328.6A 2017-09-14 2017-09-14 A kind of low temperature resistant ultra-toughness halogen-free reinforced nylon alloy and preparation method thereof Pending CN108570227A (en)

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CN110724379A (en) * 2019-10-30 2020-01-24 南京聚隆科技股份有限公司 Flame-retardant nylon material for electronics and electrics and preparation method thereof
CN112430391A (en) * 2020-11-23 2021-03-02 山东星达新材料有限公司 Super-tough super-low temperature-resistant super-wear-resistant flexible nylon alloy material and preparation method thereof
CN112940495A (en) * 2020-12-31 2021-06-11 华南理工大学 Nylon dielectric composite material with high resistance stability and preparation method and application thereof
CN115044199A (en) * 2022-07-04 2022-09-13 东莞市东翔塑胶有限公司 Super-tough flame-retardant nylon composite material and preparation method thereof

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