CN101870813B - PA66 composite material and preparation method thereof - Google Patents
PA66 composite material and preparation method thereof Download PDFInfo
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- CN101870813B CN101870813B CN2009101103841A CN200910110384A CN101870813B CN 101870813 B CN101870813 B CN 101870813B CN 2009101103841 A CN2009101103841 A CN 2009101103841A CN 200910110384 A CN200910110384 A CN 200910110384A CN 101870813 B CN101870813 B CN 101870813B
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- 229920002302 Nylon 6,6 Polymers 0.000 title claims abstract description 68
- 239000002131 composite material Substances 0.000 title claims abstract description 40
- 238000002360 preparation method Methods 0.000 title abstract description 6
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 63
- 239000000463 material Substances 0.000 claims abstract description 35
- 238000000034 method Methods 0.000 claims abstract description 30
- 239000012752 auxiliary agent Substances 0.000 claims abstract description 14
- 238000005303 weighing Methods 0.000 claims abstract description 14
- 239000003365 glass fiber Substances 0.000 claims abstract description 12
- 238000004519 manufacturing process Methods 0.000 claims abstract description 5
- 239000011521 glass Substances 0.000 claims description 55
- 239000000314 lubricant Substances 0.000 claims description 32
- 239000003112 inhibitor Substances 0.000 claims description 27
- 239000002994 raw material Substances 0.000 claims description 27
- 238000005469 granulation Methods 0.000 claims description 13
- 230000003179 granulation Effects 0.000 claims description 13
- 238000013019 agitation Methods 0.000 claims description 11
- 238000012545 processing Methods 0.000 claims description 7
- -1 phosphorous acid ester Chemical class 0.000 claims description 4
- 229920005830 Polyurethane Foam Polymers 0.000 claims description 3
- 235000014113 dietary fatty acids Nutrition 0.000 claims description 3
- 229930195729 fatty acid Natural products 0.000 claims description 3
- 239000000194 fatty acid Substances 0.000 claims description 3
- 150000004665 fatty acids Chemical class 0.000 claims description 3
- 239000011496 polyurethane foam Substances 0.000 claims description 3
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 claims description 3
- 238000001746 injection moulding Methods 0.000 abstract description 7
- 239000006185 dispersion Substances 0.000 abstract description 4
- 239000004088 foaming agent Substances 0.000 abstract 3
- 238000005299 abrasion Methods 0.000 abstract 1
- 238000002844 melting Methods 0.000 abstract 1
- 230000008018 melting Effects 0.000 abstract 1
- 238000012360 testing method Methods 0.000 description 10
- 230000035939 shock Effects 0.000 description 6
- 239000011159 matrix material Substances 0.000 description 4
- 239000002245 particle Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
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- XQDIHUSNXVHNSO-UHFFFAOYSA-N C(C)(C)(C)C=1C=C(C=C(C1O)CN)CC=C Chemical group C(C)(C)(C)C=1C=C(C=C(C1O)CN)CC=C XQDIHUSNXVHNSO-UHFFFAOYSA-N 0.000 description 1
- 241000237502 Ostreidae Species 0.000 description 1
- 235000021355 Stearic acid Nutrition 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- CJZGTCYPCWQAJB-UHFFFAOYSA-L calcium stearate Chemical compound [Ca+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O CJZGTCYPCWQAJB-UHFFFAOYSA-L 0.000 description 1
- 239000008116 calcium stearate Substances 0.000 description 1
- 235000013539 calcium stearate Nutrition 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010835 comparative analysis Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
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- 230000002950 deficient Effects 0.000 description 1
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- 238000005516 engineering process Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N ferric oxide Chemical compound O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 1
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 description 1
- 235000020636 oyster Nutrition 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
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- 239000008117 stearic acid Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- ZIBGPFATKBEMQZ-UHFFFAOYSA-N triethylene glycol Chemical compound OCCOCCOCCO ZIBGPFATKBEMQZ-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- 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
- B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
- B29C48/918—Thermal treatment of the stream of extruded material, e.g. cooling characterized by differential heating or cooling
- B29C48/9185—Thermal treatment of the stream of extruded material, e.g. cooling characterized by differential heating or cooling in the direction of the stream of the material
-
- 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
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/04—Particle-shaped
-
- 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
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
- B29C48/40—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using two or more parallel screws or at least two parallel non-intermeshing screws, e.g. twin screw extruders
-
- 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
- B29C2948/92009—Measured parameter
- B29C2948/9218—Weight
-
- 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
- B29C2948/92323—Location or phase of measurement
- B29C2948/92333—Raw material handling or dosing, e.g. active hopper or feeding device
-
- 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
-
- 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
- B29C2948/92723—Content, e.g. percentage of humidity, volatiles, contaminants or degassing
-
- 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
- B29C2948/92819—Location or phase of control
- B29C2948/92857—Extrusion unit
- B29C2948/92876—Feeding, melting, plasticising or pumping zones, e.g. the melt itself
- B29C2948/92895—Barrel or housing
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Reinforced Plastic Materials (AREA)
- Lubricants (AREA)
Abstract
The invention relates to a PA66 composite material and a preparation method thereof. The method comprises the following steps: S1, weighing PA66, antiwear agent, auxiliary agent, foaming agent and glass fiber; S2, mixing the PA66, the antiwear agent, the auxiliary agent and the foaming agent for 4-6 minutes in a mixing tank after mixed in sequence, wherein the rotating speed is 500-1200 rpm; S3, arranging the mixed materials in a blanking tank of a double screw extruder, melting and extruding through the double screw extruder, and pelleting; S4, adding the glass fiber with required proportion to the middle section of the double screw extruder in production process. The prepared PA66 composite material comprises 63.4-73.4 parts of PA66, 20.0-30.0 parts of glass fiber, 5.0-10.0 parts of antiwear agent, 1.0-2.0 parts of foaming agent and 0.6-0.5 parts of auxiliary agent. The method has good stability and good material dispersion and tightness in injection molding process, and is not easy to produce hollow or pored products with good abrasion resistance.
Description
Technical field
The present invention relates to technical field of polymer materials, more particularly, relate to a kind of PA 66 (PA66) matrix material and preparation method thereof.
Background technology
PA 66 is claimed PA66, nylon 66 again, is a kind of translucent or opaque oyster white crystallization shape polymkeric substance.The PA66 strongthener of domestic production at present mostly adopts spun glass or mineral-filled enhancing, and this type strongthener physical strength, toughness and surface are all relatively good, is widely used at a lot of industrial circles.Yet; Using this material to do the large-scale product of part such as rotation axis, gear, during mechanical transmissioning piece etc., material is easy to cause the hollow phenomenon in injection moulding process and is difficult for discovering; Make that the overall performance of material is inconsistent, in use potential danger possibly appear in the part position.And because good rigidly, material can produce very big noise at moving process, and life-time service is easy to wearing and tearing or fracture.In addition, so large-scale product is in long-term operation or friction process, because temperature raises or the continuous friction of contact surface, part surface is easy to be worn, and base or holder part also cause short splitting because of long-term stressed meeting.
Therefore, need a kind of in injection moulding process the good and good PA 66 composite material of wear resistance of good stability, dispersion of materials property and fine and closely woven property.
Summary of the invention
The technical problem that the present invention will solve is; To stability, dispersion of materials property and fine and closely woven property and the imperfect defective of wear resistance of prior art, provide a kind of in injection moulding process the good and good PA 66 composite material of wear resistance of good stability, dispersion of materials property and fine and closely woven property.
The technical solution adopted for the present invention to solve the technical problems is: construct a kind of PA 66 composite material, comprise following materials based on weight:
Wherein, said anti-wear agent is a tetrafluoroethylene,
Said whipping agent is a polyurethane foams,
Said auxiliary agent comprises:
0.3 part of inhibitor
0.3 part of lubricant.
In PA 66 composite material of the present invention, the viscosity of said PA 66 is between 2.6-3.0.
In PA 66 composite material of the present invention, said lubricant specifically is the fatty acid lubricant.
In PA 66 composite material of the present invention, said inhibitor is specially three (2, the 4-di-tert-butylphenol) phosphorous acid ester.
The present invention solves another technical scheme that its technical problem adopts, and constructs a kind of method of PA 66 composite material, may further comprise the steps:
S1, take by weighing PA 66, anti-wear agent, auxiliary agent, whipping agent and spun glass according to the above ratio;
S2, PA66, anti-wear agent, auxiliary agent, whipping agent are mixed the back in order in agitation vat, mixed 4-6 minute; Rotating speed is at 500-1200 rev/min;
S3, mixed raw materials is placed the following charging basket of twin screw extruder, melt extrude granulation through twin screw extruder;
S4, double screw extruder in production process stage casing add the spun glass of required ratio.
In the method for the invention, among the said step S3, the twin screw extruder processing condition are: twin screw extruder one district's temperature is 240～260 ℃; Two district's temperature are 250～270 ℃; Three district's temperature are 250～280 ℃, and four district's temperature are 260～280 ℃, and five district's temperature are 250～265 ℃; Mixed raw materials time of delivery in screw rod is 1 minute, and pressure is 10-20MPa.
In the method for the invention, among the said step S4, claim the interpolation content of tested glass fiber through pound so that effectively control PA 66 composite material in the accuracy of content of glass fiber.
PA 66 composite material of embodiment of the present invention and preparation method thereof has following beneficial effect:
1, the interpolation of spun glass has improved the intensity and the heat resistance of matrix material, guarantees that material reaches certain mechanical property;
2, the interpolation of whipping agent has improved the dispersed and fine and closely woven degree of matrix material, noise reduction property, and reduce the density of material to a certain extent;
3, the interpolation of anti-wear agent has improved the self lubricity and the wear resistance of matrix material.
Description of drawings
To combine accompanying drawing and embodiment that the present invention is described further below, in the accompanying drawing:
Fig. 1 is the preparing method's of a PA 66 composite material of the present invention method flow diagram.
Embodiment
Fig. 1 is the preparing method's of a PA 66 composite material of the present invention method flow diagram.
As shown in Figure 1, in step S1, take by weighing PA 66, anti-wear agent, auxiliary agent, whipping agent and spun glass in proportion.For example, can comprise PA 66 63.4-73.4 part, spun glass 20.0-30.0 part, anti-wear agent 5.0-10.0 part, whipping agent 1.0-2.0 part and auxiliary agent 0.6-0.2 part in per 100 parts by weight raw materials.Those skilled in the art know, can take by weighing raw material according to arbitrary numerical value that actual needs is chosen in the above-mentioned scope.
In a preferred embodiment of the invention, said PA 66 is the PA 66 resin, and its viscosity is preferably between 2.6-3.0.The optional long glass fibres of said spun glass, its diameter is at the 5-15 millimeter.Said anti-wear agent can be selected tetrafluoroethylene.Said whipping agent can be selected polyurethane foams.Said auxiliary agent comprises: inhibitor 0.3-0.6 part and lubricant 0.3-0.6 part.Said lubricant specifically is the fatty acid lubricant, and preferably the stearic acid lubricant of white powder like StAl, calcium stearate lubricant or the like, all can be used for the present invention.Said inhibitor is specially triglycol two-fine or three (2, the 4-di-tert-butylphenol) phosphorous acid ester of 3-(3-tertiary butyl-4-hydroxy-5-aminomethyl phenyl) propylene.
In step S2, PA 66, anti-wear agent, auxiliary agent, whipping agent are mixed the back in order in agitation vat, mixed 4-6 minute; Rotating speed is at 500-1200 rev/min.In this step, auxiliary agent can comprise inhibitor and lubricant.Can PA 66, anti-wear agent, inhibitor, lubricant, whipping agent be mixed in order.
In step S3, mixed raw materials is placed the following charging basket of twin screw extruder, melt extrude granulation through twin screw extruder.The twin screw extruder processing condition are: twin screw extruder one district's temperature is 240～260 ℃; Two district's temperature are 250～270 ℃; Three district's temperature are 250～280 ℃, and four district's temperature are 260～280 ℃, and five district's temperature are 250～265 ℃; The time of delivery in screw rod that mixes is 1 minute, and pressure is 10-20MPa.
In step S4, promptly in the production process of twin screw extruder, add the spun glass of required ratio from the twin screw extruder stage casing.In a preferred embodiment of the invention, can claim the interpolation content of tested glass fiber through pound, so as effectively to control PA 66 composite material in the accuracy of content of glass fiber.
In order to make the object of the invention, technical scheme and advantage clearer,, the present invention is further elaborated below in conjunction with embodiment.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.Those skilled in the art know; In the embodiment of following discloses; Except that above-mentioned disclosed all kinds of PA 66s, anti-wear agent, lubricant, inhibitor, whipping agent with the spun glass; Can also use any other PA 66, anti-wear agent, lubricant, inhibitor, whipping agent and spun glass, those skilled in the art are familiar with and can obtain various PA 66s, anti-wear agent, lubricant, inhibitor, whipping agent and spun glass.
Embodiment 1
In the present embodiment, said PA 66 composite material comprises following materials based on weight: PA6673.4 part, 20 parts in spun glass, 5 parts of anti-wear agents, 0.3 part of lubricant, 0.3 part of inhibitor, 1 part of whipping agent.
Preparing method: take by weighing above-mentioned raw materials, then PA6673.4,5 parts of anti-wear agents, 0.3 part of inhibitor, 0.3 part of lubricant and whipping agent are mixed the back for 1 part in order and in agitation vat, mixed 4 minutes; Rotating speed is at 500 rev/mins.Then mixed raw material is placed the following charging basket of twin screw extruder forcing machine, melt extrude granulation through twin screw extruder.In the working process of twin screw extruder, add 20 parts of long glass fibress from the twin screw extruder stage casing.Wherein the parts by weight of spun glass can claim that test is to control effectively through pound.The cubage formula of last spun glass is the gross weight that spun glass advances the PA 66 composite material of fine weight * 100%/make.
Wherein the twin screw extruder processing condition are: twin screw extruder one district's temperature is 240 ℃, and two district's temperature are 250 ℃, and three district's temperature are 250 ℃; Four district's temperature are 260 ℃; Five district's temperature are 250 ℃, and raw materials mixed time of delivery in screw rod is 1 minute, and pressure is 10MPa.
Embodiment 2
In the present embodiment, said PA 66 composite material comprises following materials based on weight: PA6656.2 part, 30 parts in spun glass, 10 parts of anti-wear agents, 0.6 part of lubricant, 0.6 part of inhibitor, 2 parts of whipping agents.
Preparing method: take by weighing above-mentioned raw materials, then PA6656.2 part, 10 parts of anti-wear agents, 0.6 part of inhibitor, 0.6 part of lubricant and whipping agent are mixed the back for 2 parts in order and in agitation vat, mixed 6 minutes; Rotating speed is at 1200 rev/mins.Then mixed raw material is placed the following charging basket of twin screw extruder forcing machine, melt extrude granulation through twin screw extruder.In the working process of twin screw extruder, add 30 parts of long glass fibress from the twin screw extruder stage casing.Wherein the parts by weight of spun glass can claim that test is to control effectively through pound.The cubage formula of last spun glass is the gross weight that spun glass advances the PA 66 composite material of fine weight * 100%/make.
Wherein the twin screw extruder processing condition are: twin screw extruder one district's temperature is 260 ℃, and two district's temperature are 270 ℃, and three district's temperature are 280 ℃; Four district's temperature are 280 ℃; Five district's temperature are 265 ℃, and raw materials mixed time of delivery in screw rod is 1 minute, and pressure is 20MPa.
Embodiment 3
In the present embodiment, said PA 66 composite material comprises following materials based on weight: PA6661.9 part, 25 parts in spun glass, 8 parts of anti-wear agents, 0.4 part of lubricant, 0.4 part of inhibitor, 1.5 parts of whipping agents.
Preparing method: take by weighing above-mentioned raw materials, then PA6661.9 part, 8 parts of anti-wear agents, 0.4 part of inhibitor, 0.4 part of lubricant and whipping agent are mixed the back for 1.5 parts in order and in agitation vat, mixed 5 minutes; Rotating speed is at 1000 rev/mins.Then mixed raw material is placed the following charging basket of twin screw extruder forcing machine, melt extrude granulation through twin screw extruder.In the working process of twin screw extruder, add 25 parts of long glass fibress from the twin screw extruder stage casing.Wherein the parts by weight of spun glass can claim that test is to control effectively through pound.The cubage formula of last spun glass is the gross weight that spun glass advances the PA 66 composite material of fine weight * 100%/make.
Wherein the twin screw extruder processing condition are: twin screw extruder one district's temperature is 250 ℃, and two district's temperature are 260 ℃, and three district's temperature are 260 ℃; Four district's temperature are 270 ℃; Five district's temperature are 255 ℃, and raw materials mixed time of delivery in screw rod is 1 minute, and pressure is 15MPa.
Embodiment 4
In the present embodiment, said PA 66 composite material comprises following materials based on weight: PA6667.4 part, 20 parts in spun glass, 10 parts of anti-wear agents, 0.3 part of lubricant, 0.3 part of inhibitor, 2 parts of whipping agents.
Preparing method: take by weighing above-mentioned raw materials, then PA6667.4 part, 10 parts of anti-wear agents, 0.3 part of inhibitor, 0.3 part of lubricant and whipping agent are mixed the back for 2 parts in order and in agitation vat, mixed 5 minutes; Rotating speed is at 1000 rev/mins.Then mixed raw material is placed the following charging basket of twin screw extruder forcing machine, melt extrude granulation through twin screw extruder.In the working process of twin screw extruder, add 20 parts of long glass fibress from the twin screw extruder stage casing.Wherein the parts by weight of spun glass can claim that test is to control effectively through pound.The cubage formula of last spun glass is the gross weight that spun glass advances the PA 66 composite material of fine weight * 100%/make.
Twin screw extruder one district's temperature is 240～260 ℃, and two district's temperature are 250～270 ℃, and three district's temperature are 250～280 ℃; Four district's temperature are 260～280 ℃; Five district's temperature are 250～265 ℃, and the time of delivery in screw rod that mixes is 1 minute, and pressure is 10-20MPa.
Embodiment 5
In the present embodiment, said PA 66 composite material comprises following materials based on weight: PA6663.4 part, 20 parts in spun glass, 10 parts of anti-wear agents, 0.3 part of lubricant, 0.3 part of inhibitor, 2 parts of whipping agents.
Preparing method: take by weighing above-mentioned raw materials, then PA6663.4 part, 10 parts of anti-wear agents, 0.3 part of inhibitor, 0.3 part of lubricant and whipping agent are mixed the back for 2 parts in order and in agitation vat, mixed 5 minutes; Rotating speed is at 1000 rev/mins.Then mixed raw material is placed the following charging basket of twin screw extruder forcing machine, melt extrude granulation through twin screw extruder.In the working process of twin screw extruder, add 20 parts of long glass fibress from the twin screw extruder stage casing.Wherein the parts by weight of spun glass can claim that test is to control effectively through pound.The cubage formula of last spun glass is the gross weight that spun glass advances the PA 66 composite material of fine weight * 100%/make.
Twin screw extruder one district's temperature is 240～260 ℃, and two district's temperature are 250～270 ℃, and three district's temperature are 250～280 ℃; Four district's temperature are 260～280 ℃; Five district's temperature are 250～265 ℃, and the time of delivery in screw rod that mixes is 1 minute, and pressure is 10-20MPa.
In order to further specify the meliority of PA 66 composite material of the present invention,, the contrast PA 66 composite material is provided according to the following example.
Reference examples 1
In the present embodiment, said contrast PA 66 composite material is processed by following materials based on weight: PA6674.2 part, 25 parts in spun glass, 0.4 part of lubricant, 0.4 part of inhibitor;
Preparing method: take by weighing above-mentioned raw materials, PA66, lubricant, inhibitor are mixed the back in order in agitation vat, mixed 5 minutes; Rotating speed is at 1000 rev/mins.Then mixed raw material is placed the following charging basket of twin screw extruder forcing machine, melt extrude granulation through twin screw extruder.In the working process of twin screw extruder, add 25 parts of long glass fibress from the twin screw extruder stage casing.Wherein the parts by weight of spun glass can claim that test is to control effectively through pound.The cubage formula of last spun glass is the gross weight that spun glass advances the PA 66 composite material of fine weight * 100%/make.
Twin screw extruder one district's temperature is 240～260 ℃, and two district's temperature are 250～270 ℃, and three district's temperature are 250～280 ℃; Four district's temperature are 260～280 ℃; Five district's temperature are 250～265 ℃, and the time of delivery in screw rod that mixes is 1 minute, and pressure is 10-20MPa.
Reference examples 2
In the present embodiment, said contrast PA 66 composite material is processed by following materials based on weight: PA6666.2 part, 25 parts in spun glass, 8 parts of anti-wear agents, 0.4 part of lubricant, 0.4 part of inhibitor;
Preparing method: take by weighing above-mentioned raw materials, PA66, anti-wear agent, lubricant, inhibitor are mixed the back in order in agitation vat, mixed 5 minutes; Rotating speed is at 1000 rev/mins.Then mixed raw material is placed the following charging basket of twin screw extruder forcing machine, melt extrude granulation through twin screw extruder.In the working process of twin screw extruder, add 25 parts of long glass fibress from the twin screw extruder stage casing.Wherein the parts by weight of spun glass can claim that test is to control effectively through pound.The cubage formula of last spun glass is the gross weight that spun glass advances the PA 66 composite material of fine weight * 100%/make.
Twin screw extruder one district's temperature is 240～260 ℃, and two district's temperature are 250～270 ℃, and three district's temperature are 250～280 ℃; Four district's temperature are 260～280 ℃; Five district's temperature are 250～265 ℃, and the time of delivery in screw rod that mixes is 1 minute, and pressure is 10-20MPa.
Reference examples 3
In the present embodiment, said contrast PA 66 composite material is processed by following materials based on weight: 1.5 parts of PA6672.7 part, 25 parts in spun glass, 0.4 part of lubricant, 0.4 part of inhibitor and whipping agents;
Preparing method: take by weighing above-mentioned raw materials, PA66, lubricant, inhibitor and whipping agent are mixed the back in order in agitation vat, mixed 5 minutes; Rotating speed is at 1000 rev/mins.Then mixed raw material is placed the following charging basket of twin screw extruder forcing machine, melt extrude granulation through twin screw extruder.In the working process of twin screw extruder, add 25 parts of long glass fibress from the twin screw extruder stage casing.Wherein the parts by weight of spun glass can claim that test is to control effectively through pound.The cubage formula of last spun glass is the gross weight that spun glass advances the PA 66 composite material of fine weight * 100%/make.
Twin screw extruder one district's temperature is 240～260 ℃, and two district's temperature are 250～270 ℃, and three district's temperature are 250～280 ℃; Four district's temperature are 260～280 ℃; Five district's temperature are 250～265 ℃, and the time of delivery in screw rod that mixes is 1 minute, and pressure is 10-20MPa.
Performance evaluation mode and implementation standard
The particle that above-mentioned granulation is intact was dried 3-4 hour in 100-120 ℃ air dry oven, on injection moulding machine, carried out the making moulding of test sample then.
With the particle of accomplishing granulation among the foregoing description 1～5 and the reference examples 1-3 in 130--150 ℃ convection oven dry 4～6 hours,, keep the mould temperature in the sample making course between 70～100 ℃ again with the injection moulding sample preparation on the 80T injection moulding machine of exsiccant particle.
Tensile strength is tested by GB/T 1040 standards.Specimen types is the I type, batten size (mm): 170 (length) * (20 ± 0.2) (end width) * (4 ± 0.2) (thickness), and draw speed is 50mm/min; Flexural strength and modulus in flexure are tested by GB 9341/T standard.Specimen types is specimen size (mm): (80 ± 2) * (10 ± 0.2) * (4 ± 0.2), rate of bending are 20mm/min; Notched Izod impact strength is tested by the GB/T1043 standard.Specimen types is the I type, specimen size (mm): (80 ± 2) * (10 ± 0.2) * (4 ± 0.2); The breach type is a category-A, and the breach residual thickness is 3.2mm; Heat-drawn wire is tested by GB/T 1634.2 standards, and load is 100mm for the 1.80MPa. span.Flowing property is tested according to ISO 1133, is the unified flowing property of weighing material, and adopting same test condition is 275 ℃ of temperature, and counterweight is 5KG.Extrude the coefficient of expansion and add spun glass lines in the extrusion under the similarity condition by pure PA66 and compare, its radix is set at 1.
The raw material weight umber of embodiment and reference examples and the PA66 composite property table of processing
From table, can find out: embodiment 1-5 and reference examples 2; The PA66 strongthener when content of glass fiber is consistent, has added single anti-wear agent; The intensity of material obviously descends; Flowability is significantly improved, and the resistance to impact shock of material also is significantly improved, and has obviously improved the wear resisting property and the self-lubricating property of material.Adding proportion is high more, and the strength degradation of material is obvious more, and it is obvious more that toughness improves degree.Embodiment 1-5 and reference examples 3, the PA66 strongthener when content of glass fiber is consistent, has added single whipping agent, and the intensity of material obviously descends; Its shock strength also significantly descends, and proportion is also light more.Adding proportion is high more, and degrees of expansion is high more, and proportion is more little, and overall performance descends also obvious more.By embodiment 1-5, comprehensively add anti-wear agent and whipping agent, significantly comprehensively improved the physical strength and the resistance to impact shock of material, play the effect of foaming noise reduction simultaneously again.Can be found out that by comparative analysis material interpolation spun glass is high more, the strength of materials is also high more, and proportion is big more.Material obviously reduces the physical strength of material also with the increase of anti-wear agent, and its resistance to impact shock is significantly improved, and wear resistance obtains very big improvement.Whipping agent adds many more, and the proportion of material is light more, and degrees of expansion is good more, and overall mechanical properties and resistance to impact shock are had very big influence.The overall performance of compound material, it is the most effective and reasonable selecting embodiment 3 for use, and physical strength, resistance to impact shock and the expansion noise reduction degree of material all obtained overall equilbrium.
Though the present invention describes through specific embodiment, it will be appreciated by those skilled in the art that, without departing from the present invention, can also carry out various conversion and be equal to alternative the present invention.Therefore, the present invention is not limited to disclosed specific embodiment, and should comprise the whole embodiments that fall in the claim scope of the present invention.
Claims (6)
1. a PA 66 composite material is characterized in that, comprises following materials based on weight:
Wherein, said anti-wear agent is a tetrafluoroethylene,
Said whipping agent is a polyurethane foams,
Said auxiliary agent comprises:
0.3 part of inhibitor
0.3 part of lubricant.
2. PA 66 composite material according to claim 1 is characterized in that the viscosity of said PA 66 is between 2.6-3.0.
3. PA 66 composite material according to claim 2 is characterized in that, said lubricant specifically is the fatty acid lubricant, and said inhibitor is specially three (2, the 4-di-tert-butylphenol) phosphorous acid ester.
4. prepare the method for the described PA 66 composite material of claim 3, it is characterized in that, may further comprise the steps:
S1, take by weighing PA 66, anti-wear agent, auxiliary agent, whipping agent and spun glass in proportion;
S2, PA 66, anti-wear agent, auxiliary agent, whipping agent are mixed the back in order in agitation vat, mixed 4-6 minute; Rotating speed is at 500-1200 rev/min;
S3, mixed raw materials is placed the following charging basket of twin screw extruder, melt extrude granulation through twin screw extruder;
S4, double screw extruder in production process stage casing add the spun glass of required ratio.
5. according to the said method of claim 4, it is characterized in that, among the said step S3; The twin screw extruder processing condition are: twin screw extruder one district's temperature is 240～260 ℃, and two district's temperature are 250～270 ℃, and three district's temperature are 250～280 ℃; Four district's temperature are 260～280 ℃; Five district's temperature are 250～265 ℃, and mixed raw materials time of delivery in screw rod is 1 minute, and pressure is 10-20MPa.
6. according to the said method of claim 5, it is characterized in that, among the said step S4, claim the interpolation content of tested glass fiber, so that effectively control the accuracy of content of glass fiber in the PA 66 composite material through pound.
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| CN102382466B (en) * | 2011-11-25 | 2014-02-05 | 深圳市科聚新材料有限公司 | High-stability PA66 modified material and preparation method thereof |
| CN103540124A (en) * | 2012-07-10 | 2014-01-29 | 辽宁辽杰科技有限公司 | Wear-resistant thermoplastic resin composite material and preparation method thereof |
| CN103642234A (en) * | 2013-11-18 | 2014-03-19 | 安徽宜万丰电器有限公司 | Anti-ultraviolet modified nylon 66 material for automobile plastic members |
| CN106916446A (en) * | 2015-12-24 | 2017-07-04 | 上海杰事杰新材料(集团)股份有限公司 | A kind of high temperature resistant fretting map glass fiber enhanced nylon composite and preparation method thereof |
| CN110256841B (en) * | 2019-05-27 | 2021-10-15 | 中广核俊尔(浙江)新材料有限公司 | High-performance high-fluidity polyamide composite material and preparation method thereof |
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| CN1789337A (en) * | 2005-12-20 | 2006-06-21 | 孙兰英 | High-performance reinforced nylon |
| CN101003682A (en) * | 2006-12-29 | 2007-07-25 | 深圳市科聚新材料有限公司 | Modified nylon material with high smooth surface level, and preparation method |
| CN101182388A (en) * | 2007-12-11 | 2008-05-21 | 上海金发科技发展有限公司 | High-wearing high-rigidity reinforced nylon 66 complexes and method for making same |
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| CN1789337A (en) * | 2005-12-20 | 2006-06-21 | 孙兰英 | High-performance reinforced nylon |
| CN101003682A (en) * | 2006-12-29 | 2007-07-25 | 深圳市科聚新材料有限公司 | Modified nylon material with high smooth surface level, and preparation method |
| CN101182388A (en) * | 2007-12-11 | 2008-05-21 | 上海金发科技发展有限公司 | High-wearing high-rigidity reinforced nylon 66 complexes and method for making same |
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