CN107955367A - A kind of office seating high endurance nylon composite materials and preparation method thereof - Google Patents

A kind of office seating high endurance nylon composite materials and preparation method thereof Download PDF

Info

Publication number
CN107955367A
CN107955367A CN201711190228.1A CN201711190228A CN107955367A CN 107955367 A CN107955367 A CN 107955367A CN 201711190228 A CN201711190228 A CN 201711190228A CN 107955367 A CN107955367 A CN 107955367A
Authority
CN
China
Prior art keywords
polyamide
inorganic mineral
composite materials
mineral powder
nylon composite
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201711190228.1A
Other languages
Chinese (zh)
Other versions
CN107955367B (en
Inventor
王晓群
尹城龙
黄珂伟
陈家锋
肖敏
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
HANGZHOU JINZHOU POLYMER TECHNOLOGY Co Ltd
Original Assignee
HANGZHOU JINZHOU POLYMER TECHNOLOGY Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by HANGZHOU JINZHOU POLYMER TECHNOLOGY Co Ltd filed Critical HANGZHOU JINZHOU POLYMER TECHNOLOGY Co Ltd
Priority to CN201711190228.1A priority Critical patent/CN107955367B/en
Publication of CN107955367A publication Critical patent/CN107955367A/en
Application granted granted Critical
Publication of CN107955367B publication Critical patent/CN107955367B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L77/00—Compositions of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Compositions of derivatives of such polymers
    • C08L77/02—Polyamides derived from omega-amino carboxylic acids or from lactams thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/92—Measuring, controlling or regulating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92504—Controlled parameter
    • B29C2948/92704—Temperature
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/24—Acids; Salts thereof
    • C08K3/26—Carbonates; Bicarbonates
    • C08K2003/265—Calcium, strontium or barium carbonate
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
    • C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend

Abstract

A kind of office seating high endurance nylon composite materials and preparation method thereof, belong to technical field of polymer materials.The nylon composite materials are by polyamide, chain extender, auxiliary agent and with the inorganic mineral powder after silane coupler modified are that raw material prepares gained through double screw extruder melting extrusion.This method has the advantages that easy to operate, easy to process, and the material has the excellent properties such as excellent mechanical property, good appearance, low production cost.

Description

A kind of office seating high endurance nylon composite materials and preparation method thereof
Technical field
The invention belongs to technical field of polymer materials, and in particular to a kind of high endurance nylon composite wood of office seating Material and preparation method thereof.
Background technology
Nylon 6 is one of engineering plastics formed by caprolactam polycondensation.At present, because of its relatively low fusing point and wider processing work Skill scope, and, dosage larger product one of wider as application；Meanwhile and since it is with good self lubricity, it is more excellent The features such as different oil resistivity, heat resistance and higher mechanical strength, thus be widely used in the product of all trades and professions.
But nylon 6 has the shortcomings that its is obvious again, such as higher water absorption rate and poor product component dimensional stability. In order to meet the market demand, the inherent shortcoming of nylon 6 is overcome, improving the physical property of nylon 6 and reducing its development cost becomes Everybody questions of common interest.
Inorganic filler is changed because of its cheap cost and excellent property by macromolecule is increasingly used in In property material.As AsahiKASE companies develop 40% glass fibre filling nylon 6 composite material；Golden hair company develops 40% kaolinite Native 6 composite material of filled nylon-6.Although the said goods can meet means suitable, but by the defects of its inorganic filler and technology Bottleneck and limit further areas of applicability.Buckling deformation such as glass fibre filling nylon 6 composite material, the consume to mould are tight Weight, particularly surface whiting, thin wall parts.And although above-mentioned 40% kaolin filled nylon-6,6 composite material is improved and stuck up The problem of song deformation and impact strength is improved, but since this kind of inorganic mineral powder such as kaolin is hydrophilic and oleophobic nonmetallic ore Thing, and the compatibility between the macromolecule interfacial such as unmodified inorganic filler and nylon is very poor, so as to show as its composite material Elongation at break it is very low so that its molding resistance to flexility of product is poor, be easily broken off breakage, make product service life and Use condition is had a greatly reduced quality, and particularly similar to the small table plate on office seating, these destroy or force to yield and artificially oppress the production used repeatedly Product, according to Market Feedback, whether the toughness of products that client is concerned about largely enough with the elongation at break of material enough It is related, rather than only traditional impact strength.Simultaneously as inorganic mineral powder has addition saturation in resin Property, and its own oil absorption, the appearance on highly filled miberal powder nylon surface can produce the filamentary silver much to turn white, therefore cannot Appearance member use is done, in order to improve the apparent of product component, existing technology is usually to add the flow ability modifying agent of small molecule, this A little auxiliary agents, which have nylon, to be destroyed amido link and destroys the harmful effects such as crystallinity, this be with sacrifice composite material physical property intensity and Service life is the modification mode of cost, does not meet the theory of sustainable development.Therefore, in order to meet the market demand, one is developed Money with high intensity, high endurance and is the thing that we need urgently to solve with good apparent nylon composite materials.
The content of the invention
In view of the problems of the existing technology, it is intended to solve the problems, such as mentioned above, then design provides a kind of office seat The technical solution of the high endurance nylon composite materials of chair, the program have the advantages that easy to operate, easy to process, and the material With excellent mechanical property, good appearance, the excellent properties such as low production cost.
To achieve the above object, the technical solution adopted by the present invention is：
A kind of high endurance nylon composite materials of office seating, it is characterised in that：The nylon composite materials are by gathering Acid amides, chain extender, auxiliary agent and be raw material through double screw extruder melting extrusion system with the inorganic mineral powder after silane coupler modified Standby gained.
A kind of high endurance nylon composite materials of office seating, it is characterised in that：The nylon composite materials by The raw material of following portions by weight is made：Polyamide is 50~70 parts, inorganic mineral powder is 30~60 parts, chain extender is 1~3 part, helps Agent is 1~2 part.
A kind of high endurance nylon composite materials of office seating, it is characterised in that：The polyamide is：It is viscous Spend for 2.8, fusing point is 215 DEG C of polyamide 6 and viscosity is 2.0, and fusing point is 120 DEG C of polyamide 612.
A kind of high endurance nylon composite materials of office seating, it is characterised in that：The inorganic mineral powder is Mica, wollastonite, talcum powder, calcium carbonate, barium sulfate, kaolin and the oxidation of 4000 mesh and the above after silane coupler modified One or more kinds of compounds in aluminium.
A kind of high endurance nylon composite materials of office seating, it is characterised in that：The chain extender includes： Epoxide, maleic anhydride and ethene alternate copolymer, one or more kinds of mixtures in isocyanates, preferably It is to play three-dimensional cross-linked chain extender in polyamide.
A kind of high endurance nylon composite materials of office seating, it is characterised in that：The silane coupling agent For glycidyl ether oxygen propyl trimethoxy silicane, aminopropyl triethoxysilane, vinyl three（'beta '-methoxy ethyoxyl）Silicon One or more kinds of mixtures in alkane.
A kind of high endurance nylon composite materials of office seating, it is characterised in that：The auxiliary agent is antioxygen One or more kinds of mixtures in agent, weather resisting agent, flow ability modifying agent；
The antioxidant includes：β (3,5- di-tert-butyl-hydroxy phenyls) propionate, (3,5- bis- of 1,3,5- tri- Tertiary butyl-4-hydroxy benzyl) 2,4,6- trimethylbenzenes, 4,4' butylidene biss (the 6- tert-butyl group -3- methylphenols)（330）In One or more kinds of mixtures；
The weather resisting agent includes：2- (double (a, the a- dimethyl benzyl) phenyl of 2'- hydroxyls -3', 5') benzotriazole, 2- (2'- hydroxyls Base -3', 5'- di-tert-butyl-phenyl)-benzotriazole, 2,2' methylene bis (4- t-octyl -6- benzotriazole phenol), in one Kind or more than one mixture；
The flow ability modifying agent includes：One in Amino End Group Aromatic Hyperbranched Polyesters, end carboxyl Aromatic Hyperbranched Polyesters Kind or more than one mixture.
The preparation method of the high endurance nylon composite materials of a kind of office seating, it is characterised in that including following Step：
（1）The surface of inorganic mineral powder is handled with silane coupling agent, first by 80~90 parts of inorganic mineral powder, 10~20 parts of alcohol Add in mixer, stirring at low speed mixes 2~5 minutes, allows alcohol fully to be absorbed by inorganic mineral powder, then by silane coupling agent 1 In~3 parts of addition mixers, 80 DEG C~90 DEG C are heated to, high-speed stirred 10~20 minutes, is being heated and silicon under the action of alcohol Alkane coupling agent can hydrolyze, and coupling reaction is carried out with the hydroxyl on inorganic mineral powder surface, after the completion of powder is set in powder drying Drying obtains silane coupler modified inorganic mineral powder in 90 DEG C~100 DEG C standby；
（2）By polyamide 6, chain extender and silane coupler modified inorganic mineral powder by 45~60 parts of polyamide, chain extender 1~3 30~60 parts of part and inorganic mineral powder are mixed 10~20 minutes through blender and obtained a homogeneous mixture；
（3）Each section of double screw extruder is warming up to 220 DEG C~260 DEG C, said mixture is put into double screw extruder Main feeding bucket, side feeding bucket 1 and side feeding bucket 2 are respectively put into by 5~10 parts of 1~2 part of auxiliary agent and polyamide 612, by 150~ The yield of 200kg/h sets the rate of feeding of respective barrel, through double screw extruder extruded stock silk, cools down, air-dries, pelletizing obtains To polyamide modified material, wherein, double screw extruder is after working 10~20 minutes by 7 sections and later temperature in original 20 DEG C are reduced on the basis of coming.
A kind of preparation method of the high endurance nylon composite materials of office seating, it is characterised in that：Described Step（1）The speed of middle stirring at low speed is 450r/min, and alcohol is the industrial alcohol of purity 95%, and the speed of high-speed stirred is 1200r/min。
A kind of preparation method of the high endurance nylon composite materials of office seating, the step（3）In Double screw extruder is 50 machines, and for side spout on 6 area sides of double screw extruder, the twin-screw of selection is with Strong shear Screw combinations are formed；The cooling device of cooling is the recirculated water sink of 50~80 DEG C of setting；Pelletizing is speed setting with equipment For the pelleter of 600~800r/min.
Compared with prior art, the present invention having the following advantages that and excellent effect：
1）The modified inorganic mineral powder processing method that the present invention uses is simple, strong operability, while the flow process can be equivalent Silane coupling agent dosage under improve its grafting rate and distributing homogeneity on inorganic mineral powder, it is uniform on inorganic mineral powder surface One layer of organic polymer film is covered, farthest increases its lipophile, it is greatly improved in the adding proportion of nylon and answers The mechanical property of condensation material.
2）The polyamide 6 and polyamide 612 that the present invention uses have its particularity, and the viscosity of preferable polyamide 6 is 2.8, Fusing point is 215 DEG C, and the viscosity of polyamide 612 is 2.0, and fusing point is 120 DEG C.In the composite material, polyamide 6 plays resin The effect of cladding, and what polyamide 612 played the role of is surface modification agent, during injection molding, viscosity and temperature Lower polyamide 612 is easier to prolong the surface for flowing to product component, one layer of apparent resin bed is formed in parts surface, so that greatly Improve apparent filamentary silver phenomenon of turning white caused by powder additive amount is too high greatly, while compared with not adding the material of polyamide 612, There is more preferable wider array of coloration and dyeing effect, it is structural strengthening product is ultimately formed centre, and surface is good apparent Layer cake Dry form, meanwhile, from existing market existing for polyamide clastogen it is different, polyamide 612 is high molecular polymer, belongs to poly- Acid amides series, therefore there is more preferable compatibility with polyamide 6, while the physical property intensity of composite material will not be reduced；Meanwhile Dissaving polymer and the polyamide 612 synergistic effect added in compound, preferably disperse inorganic mineral powder, and improve it and answer The mobility and lustrous surface of zoarium system.
3）Expressing technique operation of the present invention is fed using side feeding sectional, by mixed inorganic mineral powder, polyamide 6 and expansion Chain agent is from main spout blanking, and in 1st area, the melt blending of the screw rod area material of -5 section, not only there is physical blending here, but also Also chemically react, using the 1-5 areas extruder temperature setting of the present invention and extruder speed setting method, can preferably realize Modified inorganic mineral powder and polyamide 6 uniformly mix, while the amino on the silane coupling agent combined with inorganic mineral powder again can be with Carboxyl on polyamide is reacted, and plays the role of chemical bonding；The coupling agent thin layer of inorganic mineral powder surface covering, and can rise To the effect being dispersed on polyamide 6, reduce surface stress between the two.So as to farthest improve its addition Amount, meanwhile, chain extender also begins to three-dimensional cross-linked chemical reaction in 1-5 sections with polyamide 6, is turned by extrusion temperature and screw rod The setting of speed, can form microcosmic partial mesh structure with the generation chemical crosslink reaction of short period, local network structure Polyamide 6 wraps up inorganic mineral powder, plays the good result for increasing firm toughness reinforcing.Meanwhile polyamide 612 is from the side feeding in 6th area Mouth blanking, then only carry out the physical mixed of material.Side feeding using the present invention feeds method, can effectively suppress polyamide 612 with above having occurred and that the modified inorganic mineral powder of reaction and the cross-linking reaction of chain extender, not by the polyamide 6 institute of networking Catch, the above-mentioned of polyamide 612 only also could be played during injection molding by the way of the charging of this sectional Effect.This also provides a kind of new mentality of designing, i.e. single injection-molded method for laminated plate material section bar.
4）Expressing technique of the present invention operation is using method of temperature-control by times, i.e. extruding pelletization 10~20 minutes is afterwards by twin-screw 7 section of extruder and later temperature reduce by 20 DEG C on the basis of original.This is because the compound of modified inorganic mineral powder is added Material viscosity of melting mixing in screw rod is bigger, the versatility such as more common polypropylene of the heat that the friction with screw rod produces Material becomes apparent from, and under extruder gun barrel mesohigh environment, the instantaneous temperature of material and screw rod wall is very high, it is easy to causes resin Decomposition, so as to reduce apparent performance.And -10 area's temperature of 7th area of reduction extruder then can be effective after 10~20 minutes Reduce the degraded of resin.
5）The present invention using the raw materials such as inorganic mineral powder and polyamide be used in conjunction with prepare high endurance polyamide material, On the premise of ensureing product high rigidity, the toughness of product is improved, repeats flexility and good appearance, expands answering for product With scope, realize to mould Dai Gang and lightweight, long-term larger gravity pressure need to be carried out and force to make peace to destroy or force to yield by being especially used in office seating etc. Component.
Embodiment
Further illustrate the present invention with reference to embodiments.Number used in the present invention is parts by weight.
In the present invention, polyamide 612 in the case where not sacrificing polyamide 6 in itself primarily to improve composite material Superficial appearance；Chain extender is mainly the partial 3 d cross-linked network for forming polyamide 6, plays coated inorganic miberal powder, further Mention the effect of the mechanical property of material；The side spout charging of double screw extruder and the method for temperature control at times are mainly to be Composite material can play its maximum mechanical property and apparent effect.The double screw extruder that the present invention uses for 50 machines, On 6 area sides of double screw extruder, the twin-screw of selection is formed side spout for the screw combinations with Strong shear；Cooling is used Cooling device be 50~80 DEG C of recirculated water sink of setting；Pelletizing is that speed setting is cutting for 600~800r/min with equipment Grain machine.
Reference examples
（1）By polyamide 6, inorganic mineral powder（Mica）, the grafting of commercially available maleic anhydride ethylene octene copolymer press 55:40：5 Ratio is mixed 10 minutes through blender and obtained a homogeneous mixture；
（2）Each section of double screw extruder is warming up to 220 DEG C~260 DEG C, specific data are 220 DEG C of an area, two 230 DEG C of areas, Three 250 DEG C of areas, four 255 DEG C of areas, five 250 DEG C of areas, six 255 DEG C of areas, seven 255 DEG C of areas, eight 250 DEG C of areas, nine 250 DEG C of areas, ten areas 260 DEG C, mixture is put into main spout, the rate of feeding of feedstock barrel is set by the yield of 150kg/h, through double screw extruder Extruded stock silk, cools down, and air-dries, pelletizing obtains polyamide modified material.Wherein, by twin-screw extrusion after extruding pelletization 20 minutes 7 section of machine and later temperature 20 DEG C of reduction, i.e. 220 DEG C of an area on the basis of original, two 230 DEG C of areas, three 250 DEG C of areas, four 255 DEG C of area, five 250 DEG C of areas, six 255 DEG C of areas, seven 235 DEG C of areas, eight 230 DEG C of areas, nine 230 DEG C of areas, ten 240 DEG C of areas.
In the comparative example inorganic mineral powder can also use mica, wollastonite, talcum powder, calcium carbonate, barium sulfate, kaolin and One or more in aluminium oxide.
Embodiment 1
（1）With amidized silane coupling agent（Glycidyl ether oxygen propyl trimethoxy silicane）The surface of inorganic mineral powder is carried out Processing, first by inorganic mineral powder（Mica）80 parts, in 20 parts of addition mixers of alcohol of concentration 95%, stirring at low speed（450r/min） Mixing 3 minutes, allows alcohol fully to be absorbed by inorganic mineral powder, then by 1 part of addition mixer of silane coupling agent, is heated to 90 DEG C, high-speed stirred（1200r/min）10 minutes, heat and alcohol under the action of silane coupling agent can hydrolyze, it is and inorganic The hydroxyl on miberal powder surface carries out coupling reaction, after the completion of by powder in 100 DEG C of powder drying equipment drying obtain it is silane coupled The inorganic mineral powder that agent is modified；
（2）By polyamide 6, chain extender（Maleic anhydride and ethene alternate copolymer）52 are pressed with inorganic mineral powder:1：40 ratio warp Blender is mixed 10 minutes and obtained a homogeneous mixture；
（3）Each section of double screw extruder is warming up to 220 DEG C~260 DEG C, specific data are 220 DEG C of an area, two 230 DEG C of areas, Three 250 DEG C of areas, four 255 DEG C of areas, five 250 DEG C of areas, six 255 DEG C of areas, seven 255 DEG C of areas, eight 250 DEG C of areas, nine 250 DEG C of areas, ten areas 260 DEG C, by 93 parts of main feeding buckets for being put into double screw extruder of said mixture, by auxiliary agent（β (3,5- di-t-butyl -4- hydroxy benzenes Base) propionate:2- (double (a, the a- dimethyl benzyl) phenyl of 2'- hydroxyls -3', 5') benzotriazole:Amino End Group fragrance Race hyper-branched polyester=1:1：2）Side feeding bucket 1 and side feeding bucket 2 are respectively put into by 5 parts by 2 parts and polyamide 612, according to formula Ratio, the rate of feeding of respective feedstock barrel is set by the yield of 150kg/h, through double screw extruder extruded stock silk, cooling, wind Dry, pelletizing obtains polyamide modified material, wherein, extruding pelletization is after 20 minutes by 7 section of double screw extruder and later Temperature reduces by 20 DEG C, i.e. 220 DEG C of an area, two 230 DEG C of areas, three 250 DEG C of areas, four 255 DEG C of areas, five areas 250 on the basis of original DEG C, six 255 DEG C of areas, seven 235 DEG C of areas, eight 230 DEG C of areas, nine 230 DEG C of areas, ten 240 DEG C of areas.
In the embodiment inorganic mineral powder can also use mica, wollastonite, talcum powder, calcium carbonate, barium sulfate, kaolin and One or more in aluminium oxide.
Embodiment 2
（1）With amidized silane coupling agent（Aminopropyl triethoxysilane）The surface of inorganic mineral powder is handled, first will Inorganic mineral powder（Mica）80 parts, concentration be 9% 20 parts of addition mixers of alcohol in, stirring at low speed（450r/min）3 points of mixing Clock, allows alcohol fully to be absorbed by inorganic mineral powder, then by 2 parts of addition mixers of silane coupling agent, is heated to 90 DEG C, high-speed stirring Mix（1200r/min）10 minutes, it can be hydrolyzed with silane coupling agent under the action of alcohol heating, with inorganic mineral powder surface Hydroxyl carries out coupling reaction, after the completion of by powder, drying obtains silane coupler modified nothing in 100 DEG C of powder drying equipment Machine miberal powder；
（2）By polyamide 6, chain extender（Epoxide:Maleic anhydride and ethene alternate copolymer=1:1）, inorganic mineral powder presses 52:1:40 ratio is mixed 10 minutes through blender and obtained a homogeneous mixture；
（3）Each section of double screw extruder is warming up to 220 DEG C~260 DEG C, specific data are 220 DEG C of an area, two 230 DEG C of areas, Three 250 DEG C of areas, four 255 DEG C of areas, five 250 DEG C of areas, six 255 DEG C of areas, seven 255 DEG C of areas, eight 250 DEG C of areas, nine 250 DEG C of areas, ten areas 260 DEG C, by 93 parts of main feeding buckets for being put into double screw extruder of said mixture, by auxiliary agent（(3,5- di-t-butyls-the 4- of 1,3,5- tri- Hydroxybenzyl) 2,4,6- trimethylbenzenes:2- (2'- hydroxyls -3', 5'- di-tert-butyl-phenyl)-benzotriazole:End carboxyl aromatic series Hyper-branched polyester=1:1:2）Side feeding bucket 1 and side feeding bucket 2 are respectively put into by 5 parts by 2 parts and polyamide 612, according to recipe ratio Example, the rate of feeding of respective feedstock barrel is set by the yield of 150kg/h, through double screw extruder extruded stock silk, cooling, wind Dry, pelletizing obtains polyamide modified material, wherein, extruding pelletization is after 20 minutes by 7 section of double screw extruder and later Temperature reduces by 20 DEG C, i.e. 220 DEG C of an area, two 230 DEG C of areas, three 250 DEG C of areas, four 255 DEG C of areas, five areas 250 on the basis of original DEG C, six 255 DEG C of areas, seven 235 DEG C of areas, eight 230 DEG C of areas, nine 230 DEG C of areas, ten 240 DEG C of areas.
In the embodiment inorganic mineral powder can also use mica, wollastonite, talcum powder, calcium carbonate, barium sulfate, kaolin and One or more in aluminium oxide.
Embodiment 3
（1）With amidized silane coupling agent（Vinyl three（'beta '-methoxy ethyoxyl）Silane）The surface of inorganic mineral powder is carried out Processing, first by inorganic mineral powder（Mica）80 parts, in 20 parts of addition mixers of alcohol, stirring at low speed（450r/min）Mixing 3 minutes, Allow alcohol fully to be absorbed by inorganic mineral powder, then by 2 parts of addition mixers of silane coupling agent, be heated to 90 DEG C, high-speed stirred （1200r/min）10 minutes, it can be hydrolyzed with silane coupling agent under the action of alcohol heating, the hydroxyl with inorganic mineral powder surface Base carries out coupling reaction, after the completion of by powder in 100 DEG C of powder drying equipment drying obtain it is silane coupler modified inorganic Miberal powder；
（2）By polyamide 6, chain extender（Epoxide：Maleic anhydride and ethene alternate copolymer
：Isocyanates=2:1:1）, inorganic mineral powder press 51:2：40 ratio is mixed 10 minutes through blender and obtained a homogeneous mixture；
（3）Each section of double screw extruder is warming up to 220 DEG C~260 DEG C, specific data are 220 DEG C of an area, two 230 DEG C of areas, Three 250 DEG C of areas, four 255 DEG C of areas, five 250 DEG C of areas, six 255 DEG C of areas, seven 255 DEG C of areas, eight 250 DEG C of areas, nine 250 DEG C of areas, ten areas 260 DEG C, by 93 parts of main feeding buckets for being put into double screw extruder of said mixture, by auxiliary agent（4,4' butylidene biss (the 6- tert-butyl groups- 3- methylphenols:2,2' methylene bis (4- t-octyl -6- benzotriazole phenol:End carboxyl Aromatic Hyperbranched Polyesters=1:1: 2）Side feeding bucket 1 and side feeding bucket 2 are respectively put into by 5 parts by 2 parts and polyamide 612, according to formula rate, by 150kg/h's Yield sets the rate of feeding of respective feedstock barrel, through double screw extruder extruded stock silk, cools down, air-dries, pelletizing obtains polyamides Amine modified material, wherein, extruding pelletization is after 20 minutes by 7 section of double screw extruder and later temperature on original basis It is upper to reduce by 20 DEG C, i.e. 220 DEG C of an area, two 230 DEG C of areas, three 250 DEG C of areas, four 255 DEG C of areas, five 250 DEG C of areas, six 255 DEG C of areas, 7th area 235 DEG C, eight 230 DEG C of areas, nine 230 DEG C of areas, ten 240 DEG C of areas.
In the embodiment inorganic mineral powder can also use mica, wollastonite, talcum powder, calcium carbonate, barium sulfate, kaolin and One or more in aluminium oxide.
Embodiment 4
（1）With amidized silane coupling agent（Glycidyl ether oxygen propyl trimethoxy silicane:Aminopropyl triethoxysilane: Vinyl three（'beta '-methoxy ethyoxyl）Silane=2:1:1）The surface of inorganic mineral powder is handled, first by inorganic mineral powder（Cloud It is female）80 parts, in 20 parts of addition mixers of alcohol, stirring at low speed（450r/min）Mix 3 minutes, allow alcohol fully by inorganic mineral powder Absorb, then by 2 parts of addition mixers of silane coupling agent, be heated to 90 DEG C, high-speed stirred（1200r/min）10 minutes, Silane coupling agent can hydrolyze under the action of heating and alcohol, carry out coupling reaction with the hydroxyl on inorganic mineral powder surface, complete By powder, drying obtains silane coupler modified inorganic mineral powder in 100 DEG C of powder drying equipment afterwards；
（2）By polyamide 6, chain extender（Isocyanates）46 are pressed with inorganic mineral powder:2:40 ratio mixes 10 minutes through blender Obtain a homogeneous mixture；
（3）Each section of double screw extruder is warming up to 220 DEG C~260 DEG C, specific data are 220 DEG C of an area, two 230 DEG C of areas, Three 250 DEG C of areas, four 255 DEG C of areas, five 250 DEG C of areas, six 255 DEG C of areas, seven 255 DEG C of areas, eight 250 DEG C of areas, nine 250 DEG C of areas, ten areas 260 DEG C, by 88 parts of main feeding buckets for being put into double screw extruder of said mixture, by auxiliary agent（β (3,5- di-t-butyl -4- hydroxy benzenes Base) propionate:2,2' methylene bis (4- t-octyl -6- benzotriazole phenol):Amino End Group aromatic series hyperbranched poly Ester=1:1:2）Side feeding bucket 1 and side feeding bucket 2 are respectively put into by 10 parts by 2 parts and polyamide 612, according to formula rate, is pressed The yield of 150kg/h sets the rate of feeding of respective feedstock barrel, through double screw extruder extruded stock silk, cools down, air-dries, pelletizing Polyamide modified material is obtained, wherein, extruding pelletization is after 20 minutes by 7 section of double screw extruder and later temperature in original 20 DEG C, i.e. 220 DEG C of an area, two 230 DEG C of areas, three 250 DEG C of areas, four 255 DEG C of areas, five 250 DEG C of areas, 6th area are reduced on the basis of coming 255 DEG C, seven 235 DEG C of areas, eight 230 DEG C of areas, nine 230 DEG C of areas, ten 240 DEG C of areas.
In the embodiment inorganic mineral powder can also use mica, wollastonite, talcum powder, calcium carbonate, barium sulfate, kaolin and One or more in aluminium oxide.
Table 1 below shows that embodiment 1 adds different silane coupling agent additive amounts, chain extender additive amount to embodiment 4 and gathers The physical property measurement contrasting data of the obtained trial target of 612 additive amount of acid amides：
Table 1
By above experimental verification, with it is common without the reference examples of any modification and process modification compared with, material of the present invention Material is greatly improved in terms of material foundation physical property, high intensity and high tenacity requirement is met, in inorganic mineral powder additive amount When up to 40%, its tension fracture elongation rate can reach 38%, compared with the inorganic mineral powder nylon material that commonly with the addition of toughener, In the case where keeping mechanics material suitable, its tension fracture elongation rate adds as many as 7 times for composite material in the present invention, and And the composite material has excellent lustrous surface effect, glossiness improves 1 times so that this material can be also applied in height In the appearances and functional component such as the automobile of performance requirement, electrician.
The above embodiments merely illustrate the technical concept and features of the present invention, and its object is to allow person skilled in the art Scholar can understand present disclosure and implement according to this, and it is not intended to limit the scope of the present invention.It is all according to the present invention The equivalent change or modification that Spirit Essence is made, should be covered by the protection scope of the present invention.

Claims (10)

  1. A kind of 1. high endurance nylon composite materials of office seating, it is characterised in that：The nylon composite materials be by polyamide, Chain extender, auxiliary agent and be that raw material prepares institute through double screw extruder melting extrusion with the inorganic mineral powder after silane coupler modified .
  2. A kind of 2. high endurance nylon composite materials of office seating according to claim 1, it is characterised in that：The nylon Composite material is made of the raw material of following portions by weight：Polyamide is 50~70 parts, inorganic mineral powder is 30~60 parts, chain extender is 1~3 part, auxiliary agent be 1~2 part.
  3. A kind of 3. high endurance nylon composite materials of office seating according to claim 1 or 2, it is characterised in that：Institute The polyamide stated is：Viscosity is 2.8, and fusing point is 215 DEG C of polyamide 6 and viscosity is 2.0, and fusing point is 120 DEG C of polyamide 612。
  4. A kind of 4. high endurance nylon composite materials of office seating according to claim 1 or 2, it is characterised in that：Institute The inorganic mineral powder stated is the mica of 4000 mesh and the above after silane coupler modified, wollastonite, talcum powder, calcium carbonate, sulfuric acid One or more kinds of compounds in barium, kaolin and aluminium oxide.
  5. A kind of 5. high endurance nylon composite materials of office seating according to claim 1 or 2, it is characterised in that：Institute The chain extender stated includes：Epoxide, maleic anhydride and ethene alternate copolymer, the one or more in isocyanates Mixture, preferably play three-dimensional cross-linked chain extender in polyamide.
  6. A kind of 6. high endurance nylon composite materials of office seating according to claim 1 or 2, it is characterised in that：Institute The silane coupling agent stated is glycidyl ether oxygen propyl trimethoxy silicane, aminopropyl triethoxysilane, vinyl three（β-first Epoxide ethyoxyl）One or more kinds of mixtures in silane.
  7. A kind of 7. high endurance nylon composite materials of office seating according to claim 1 or 2, it is characterised in that：Institute The auxiliary agent stated is antioxidant, one or more kinds of mixtures in weather resisting agent, flow ability modifying agent；
    The antioxidant includes：β (3,5- di-tert-butyl-hydroxy phenyls) propionate, (3,5- bis- of 1,3,5- tri- Tertiary butyl-4-hydroxy benzyl) 2,4,6- trimethylbenzenes, 4,4' butylidene biss (the 6- tert-butyl group -3- methylphenols)（330）In One or more kinds of mixtures；
    The weather resisting agent includes：2- (double (a, the a- dimethyl benzyl) phenyl of 2'- hydroxyls -3', 5') benzotriazole, 2- (2'- hydroxyls Base -3', 5'- di-tert-butyl-phenyl)-benzotriazole, 2,2' methylene bis (4- t-octyl -6- benzotriazole phenol), in one Kind or more than one mixture；
    The flow ability modifying agent includes：One in Amino End Group Aromatic Hyperbranched Polyesters, end carboxyl Aromatic Hyperbranched Polyesters Kind or more than one mixture.
  8. 8. a kind of office seating preparation method of high endurance nylon composite materials, it is characterised in that comprise the following steps：
    （1）The surface of inorganic mineral powder is handled with silane coupling agent, first by 80~90 parts of inorganic mineral powder, 10~20 parts of alcohol Add in mixer, stirring at low speed mixes 2~5 minutes, allows alcohol fully to be absorbed by inorganic mineral powder, then by silane coupling agent 1 In~3 parts of addition mixers, 80 DEG C~90 DEG C are heated to, high-speed stirred 10~20 minutes, is being heated and silicon under the action of alcohol Alkane coupling agent can hydrolyze, and coupling reaction is carried out with the hydroxyl on inorganic mineral powder surface, after the completion of powder is set in powder drying Drying obtains silane coupler modified inorganic mineral powder in 90 DEG C~100 DEG C standby；
    （2）By polyamide 6, chain extender and silane coupler modified inorganic mineral powder by 45~60 parts of polyamide, chain extender 1~3 30~60 parts of part and inorganic mineral powder are mixed 10~20 minutes through blender and obtained a homogeneous mixture；
    （3）Each section of double screw extruder is warming up to 220 DEG C~260 DEG C, said mixture is put into double screw extruder Main feeding bucket, side feeding bucket 1 and side feeding bucket 2 are respectively put into by 5~10 parts of 1~2 part of auxiliary agent and polyamide 612, by 150~ The yield of 200kg/h sets the rate of feeding of respective barrel, through double screw extruder extruded stock silk, cools down, air-dries, pelletizing obtains To polyamide modified material, wherein, double screw extruder is after working 10~20 minutes by 7 sections and later temperature in original 20 DEG C are reduced on the basis of coming.
  9. 9. a kind of preparation method of the high endurance nylon composite materials of office seating according to claim 8, its feature It is：The step（1）The speed of middle stirring at low speed is 450r/min, and alcohol is the industrial alcohol of purity 95%, high-speed stirred Speed be 1200r/min.
  10. 10. a kind of preparation method of the high endurance nylon composite materials of office seating according to claim 8, described Step（3）In double screw extruder be 50 machines, on 6 area sides of double screw extruder, the twin-screw of selection is side spout Screw combinations with Strong shear are formed；The cooling device of cooling is the recirculated water sink of 50~80 DEG C of setting；Pelletizing is with setting Standby is the pelleter that speed setting is 600~800r/min.
CN201711190228.1A 2017-11-24 2017-11-24 High-fatigue-resistance nylon composite material for office chair and preparation method thereof Active CN107955367B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201711190228.1A CN107955367B (en) 2017-11-24 2017-11-24 High-fatigue-resistance nylon composite material for office chair and preparation method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201711190228.1A CN107955367B (en) 2017-11-24 2017-11-24 High-fatigue-resistance nylon composite material for office chair and preparation method thereof

Publications (2)

Publication Number Publication Date
CN107955367A true CN107955367A (en) 2018-04-24
CN107955367B CN107955367B (en) 2020-06-02

Family

ID=61962315

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201711190228.1A Active CN107955367B (en) 2017-11-24 2017-11-24 High-fatigue-resistance nylon composite material for office chair and preparation method thereof

Country Status (1)

Country Link
CN (1) CN107955367B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110591346A (en) * 2019-09-17 2019-12-20 湖北洋田塑料制品有限公司 High-temperature-resistant oil-modified nylon 6 composite material and preparation method thereof
CN111234157A (en) * 2020-03-09 2020-06-05 江苏科技大学 Reactive extrusion preparation method of flame-retardant hyperbranched polyamide 6 elastomer

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5013786A (en) * 1988-02-12 1991-05-07 Basf Aktiengesellschaft Filler-containing polyamide molding materials having an improved surface and improved coatability
CN102146206A (en) * 2011-03-31 2011-08-10 金发科技股份有限公司 Mineral filled polyamide composite material and preparation method thereof
CN102329506A (en) * 2011-06-20 2012-01-25 洪伟 Nylon composite material and preparation method thereof
CN103160117A (en) * 2011-12-16 2013-06-19 上海杰事杰新材料(集团)股份有限公司 High-gloss extrusion-grade glass-fiber-reinforced nylon 66 composite material and preparation method thereof
CN103242649A (en) * 2012-02-06 2013-08-14 金发科技股份有限公司 Glass fiber reinforced nylon material used for extrusion molding, preparation method and application

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5013786A (en) * 1988-02-12 1991-05-07 Basf Aktiengesellschaft Filler-containing polyamide molding materials having an improved surface and improved coatability
CN102146206A (en) * 2011-03-31 2011-08-10 金发科技股份有限公司 Mineral filled polyamide composite material and preparation method thereof
CN102329506A (en) * 2011-06-20 2012-01-25 洪伟 Nylon composite material and preparation method thereof
CN103160117A (en) * 2011-12-16 2013-06-19 上海杰事杰新材料(集团)股份有限公司 High-gloss extrusion-grade glass-fiber-reinforced nylon 66 composite material and preparation method thereof
CN103242649A (en) * 2012-02-06 2013-08-14 金发科技股份有限公司 Glass fiber reinforced nylon material used for extrusion molding, preparation method and application

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
牛景新: "尼龙1010/硅灰石复合材料的制备与表征", 《中国优秀硕士学位论文全文数据库 工程科技I辑》 *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110591346A (en) * 2019-09-17 2019-12-20 湖北洋田塑料制品有限公司 High-temperature-resistant oil-modified nylon 6 composite material and preparation method thereof
CN111234157A (en) * 2020-03-09 2020-06-05 江苏科技大学 Reactive extrusion preparation method of flame-retardant hyperbranched polyamide 6 elastomer
CN111234157B (en) * 2020-03-09 2021-10-19 江苏科技大学 Reactive extrusion preparation method of flame-retardant hyperbranched polyamide 6 elastomer

Also Published As

Publication number Publication date
CN107955367B (en) 2020-06-02

Similar Documents

Publication Publication Date Title
CN103059474B (en) Wood-plastic composite foaming plate and preparation method thereof
CN101240110B (en) Filled polyamide molding material with low water absorption rate
CN102993556B (en) Polypropylene composite, its preparation method and application thereof
CN101735604B (en) Montmorillonoid modified Pa6/ABS alloy material and preparation method thereof
JPH0618929B2 (en) Glass fiber reinforced polypropylene composition
CN104974418A (en) Polyropylene composite material and preparation method thereof
CN101096456A (en) High-concentration color masterbatch and preparation method thereof
JPS58204043A (en) Reinforced polyolefin resin composition
CN107955367A (en) A kind of office seating high endurance nylon composite materials and preparation method thereof
CN106478939A (en) A kind of nano composite material of Graphene/nylon/elastomer and preparation method thereof
CN110144117A (en) A kind of polyamide compoiste material and preparation method thereof
CN105440399A (en) Polyvinyl wood-plastic composite and preparation method thereof
CN105237943A (en) Rigidity-reinforced polyformaldehyde composite material and preparation method thereof
CN110144092A (en) A kind of environmental protection hard PVC modified material and preparation method thereof
CN104419150A (en) Toughening and strengthening flame retardant antistatic modified PBT material with core-shell structure
CN109096777A (en) A kind of Masterbatch and production method
CN109206730A (en) The preparation method of blow molding composite material and the composite material with environmental stress crack resistance
CN108384229A (en) A kind of composite fibre reinforced nylon 6 reworked material and preparation method thereof
CN108034249A (en) A kind of high whiteness polyphenyl thioether alloy and preparation method thereof
CN102199332B (en) Method for preparing chemical compound type macromolecular toughening brightening additive used for plastics and product thereof
CN102161817B (en) Carbon fibre reinforced polyester composite material and preparation method thereof
CN101580613B (en) Master batch used for preparing high heat-resisting polypropylene plastic as well as preparation method and application thereof
CN100532451C (en) High impact-resistant reinforced PET composition and method of making the same
CN101646725A (en) Fluoropolymer blends with inorganic layered compounds
CN104312008B (en) High-brightness PP electroplating material and preparation method thereof

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant