CN101081929A - Composite material easy for coating thermoplastic elastomer and preparation method thereof - Google Patents
Composite material easy for coating thermoplastic elastomer and preparation method thereof Download PDFInfo
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- CN101081929A CN101081929A CNA200710074853XA CN200710074853A CN101081929A CN 101081929 A CN101081929 A CN 101081929A CN A200710074853X A CNA200710074853X A CN A200710074853XA CN 200710074853 A CN200710074853 A CN 200710074853A CN 101081929 A CN101081929 A CN 101081929A
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- 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
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- 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
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- 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
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- 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
- B29C48/94—Lubricating
- B29C48/95—Lubricating by adding lubricant to the moulding material
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- 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
- B29C2948/92561—Time, e.g. start, termination, duration or interruption
-
- 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
- B29C2948/92819—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
Abstract
The present invention relates to one kind of composite material easily coated with thermoplastic elastomer and its preparation process. The composite material is prepared with polyamide 10-70 wt%, styrene resin 9-30 wt%, alloy compatibilizer 5-10 wt%, antioxidant 0.1-1 wt%, lubricant 0.1-1 wt% and glass fiber 5-50 wt%, and through mixing, and pelletizing in a double screw extruder. It has easy coating with thermoplastic elastomer, excellent impact resisting performance, low water absorbing rate and low cost.
Description
Technical field
The invention belongs to the composite chemical material field, relate to a kind of matrix material with excellent coating thermoplastic elastomer performance, relate in particular to a kind of improve impact property be widely used in PA6/ABS alloy material of electronic apparatus shell, auto parts machinery and other related productss and preparation method thereof.
Background technology
Nylon/ABS alloy is released by the Borg Warner Chemicals company and the Monsanto company of the U.S. the earliest, and ABS is propylene, divinyl and styrene copolymer.This alloy has heat-drawn wire than nylon (PA) height, and the higher characteristics of vicat softening temperature, thereby becomes the ideal material of making trolley parts such as body of a motor car coverboard.
Nylon 6 (PA6) has advantages such as wear-resisting, anti-solvent, oil resistant, use temperature be wide, but have also that water-absorbent is big, deficiency such as poor dimensional stability, low temperature and dry state shock strength are low, limited its use greatly.With PA6 and ABS blend, can make the toughness of existing ABS, again the alloy of thermotolerance and the oil-proofness of PA be arranged.This kind alloy is widely used in automobile, electronic apparatus, household electrical appliance etc.But because the polymkeric substance that PA6 is a kind of crystallinity, strong polarity, melt viscosity is very low, and ABS is the polymkeric substance of a kind of amorphism, low-pole, the solubility parameter of the two differs bigger, it is incompatible to belong to thermodynamics, simple blend causes two-phase interface tension force very big, thereby cause mechanical property relatively poor, thereby will obtain PA6/ABS alloy material with practical value, must carry out morphology Control and interface modification.
200510025573.0 application for a patent for invention in a kind of nylon and ABS alloy material that improves impact property and resistance toheat disclosed, it is made up of a mixture, its weight proportion consists of nylon 6 slice 20-70%, ABS 25-70%, SAN 5-30%, compatilizer 1-20%, heat-resistant agent 1-15%, oxidation inhibitor 0.1-1%, lubricant 0.1-0.5%.
Wherein the relative viscosity of nylon 6 slice is 2.4-3.8PaS, and ABS is propylene, divinyl and styrene copolymer, and its rubber content is 35%-70%; SAN is the multipolymer of vinylbenzene and propylene, and its melting index is 15-40g/10min; Heat-resistant agent is maleimide and derivative thereof, can be bismaleimides, N-phenylmaleimide; Compatilizer is the polymer A grafted maleic anhydride, can be SMA, ABS-g-MAH; Wherein polymer A can be PS, AS, ABS; Oxidation inhibitor comprises a kind of Hinered phenols antioxidant, can be 1076 and the compound system of a kind of Hinered phenols antioxidant and sulfite kind antioxidant, can be 1010/168 (1: 1); Lubricant is the ultra-high molecular weight polysiloxane.
This improves the nylon and the ABS alloy material of impact property and resistance toheat, with self-produced compatilizer (ABS-g-MAH) as increase-volume PA6, ABS two-phase incompatibility system.But above-mentioned alloy material has following deficiency: PA/ABS alloy rigidity is difficult to improve, and can remedy the rigidity deficiency with home-made SAM.
The PA/ABS alloy of Bayer A.G has been taked special increase-volume mode, makes it have the high-impact performance.But this special increase-volume mode is not known to the stranger, thereby causes costing an arm and a leg of this alloy.
Therefore, develop the PA6/ABS alloy material that a kind of shock resistance is good, thermotolerance is good, make it to realize production domesticization, reduce cost, be necessary greatly.
Summary of the invention
The objective of the invention is to solve the not high and cost height that causes of existing PA/ABS alloy material production domesticization degree, and the not high enough problem of part homemade goods impact property, domesticize and research and develop a kind of the implementation fully, low cost has good shock resistance and the stable on heating elastomeric matrix material of coating thermoplastic and preparation method thereof that is easy to simultaneously.
For achieving the above object, the invention provides a kind of elastomeric matrix material of coating thermoplastic that is easy to, it comprises the starting material of following weight percent:
Polymeric amide: 10-70%
Styrene resin 9-30%
Alloy compatilizer 5-10%
Coupling molecule 0.3-0.8%
Oxidation inhibitor 0.1-0.5%
Lubricant 0.1-1%
Glass fibre 5-50%
Above-mentioned selected polymeric amide is a polycaprolactam; Styrene resin is acrylonitrile-styrene-butadienecopolymer, and wherein rubber content is 50-70%; The alloy compatilizer is phenylethylene-maleic anhydride-vinyl cyanide ternary atactic copolymer; Selected coupling molecule is a silane couplent; Oxidation inhibitor is the positive octadecanol esters of four [β-(3,5-di-tert-butyl-4-hydroxy phenyl) propionic acid]; Lubricant is a fatty acid amide; Glass fiber diameter is the 4-17 micron.
The above-mentioned preparation method who is easy to the elastomeric matrix material of coating thermoplastic comprises the steps:
A, take by weighing described raw material according to weight percent;
B, polymeric amide, styrene resin, alloy compatilizer, coupling molecule, oxidation inhibitor, lubricant were mixed in moderate-speed mixers 3-7 minute;
C, above-mentioned mixed raw material is thrown in twin screw extruder, with the glass fibre blending, through melt extruding granulation; Compound time of delivery in screw rod is 1-2 minute.
Above-mentioned twin screw extruder comprises ten districts, and wherein the temperature in 1-2 district is 180-260 ℃, and the temperature in 3-4 district is 180-260 ℃, and the temperature in 5-6 district is 180-260 ℃, and the temperature in 7-8 district is 180-260 ℃, and the temperature in 9-10 district is 180-260 ℃.
Advantage of the present invention: the present invention utilizes phenylethylene-maleic anhydride-vinyl cyanide ternary atactic copolymer (SAM resin) to make compatilizer, this expanding material can make the affinity of PA6 and ABS two components strengthen because of containing the phenylethylene-maleic anhydride component, and the impact property of material increases.Thereby the PA6+ABS+30%GF material that makes preparation has excellent coating thermoplastic elastomeric properties; The PA6 of Shi Yonging, ABS, compatilizer, coupling molecule, oxidation inhibitor, lubricant, glass fibre are homemade simultaneously, have realized whole production domesticization, have reduced production cost, and the product that makes has competitive edge; And preparation process is simple, and production technique is controlled.
Embodiment
The elastomeric matrix material of coating thermoplastic that is easy to of the present invention, it comprises the starting material of following weight percent:
Polymeric amide: 10-70%
Styrene resin 9-30%
Alloy compatilizer 5-10%
Coupling molecule 0.3-1%
Oxidation inhibitor 0.1-1%
Lubricant 0.1-1%
Glass fibre 5-50%
Wherein selected polymeric amide is a polycaprolactam, and viscosity is between the 2.4-3.2; The preferential viscosity of selecting is that 2.4. newly understands U.S.A and reaches M12400.Selecting the low PA6 of viscosity, is in order to form alloy easily with ABS.The PA6 fusing point is 215-220 ℃, and the ABS fusing point is 190-200 ℃.When differing big, both viscosity is difficult to form alloy.
Styrene resin is acrylonitrile-styrene-butadienecopolymer (ABS), and in the ABS of each part, rubber content is 50-70%.Can select home-made Daqing petrochemical high glue powder HR2600.
The alloy compatilizer is phenylethylene-maleic anhydride-vinyl cyanide ternary atactic copolymer (SAM), also can be ABS-g-MAH;
Coupling molecule is silane couplent or titanic acid ester coupling molecule;
Oxidation inhibitor is the positive octadecanol esters (1076) of four [β-(3,5-di-tert-butyl-4-hydroxy phenyl) propionic acid];
Lubricant is fatty acid amide (TAF), also can select wax class (OP wax);
Glass fiber diameter is the 4-17 micron.
The above-mentioned preparation method who is easy to the elastomeric matrix material of coating thermoplastic comprises the steps:
A, take by weighing described raw material according to weight percent;
B, polymeric amide, styrene resin, alloy compatilizer, coupling molecule, oxidation inhibitor, lubricant were mixed in moderate-speed mixers 3-7 minute;
C, above-mentioned mixed raw material is thrown in twin screw extruder, with the glass fibre blending, through melt extruding granulation; Compound time of delivery in screw rod is 1-2 minute.
Above-mentioned twin screw extruder comprises ten districts, and wherein the temperature in 1-2 district is 180-260 ℃, and the temperature in 3-4 district is 180-260 ℃, and the temperature in 5-6 district is 180-260 ℃, and the temperature in 7-8 district is 180-260 ℃, and the temperature in 9-10 district is 180-260 ℃.
Below in conjunction with specific embodiment, the present invention is done further detailed elaboration:
In each following embodiment, starting material all are chosen as homemade, and wherein to select viscosity be that 2.4 DSM is newly understood U.S.A and reached M12400 to PA6, ABS selects HR2600 or Shanghai Jin Hu to produce 151B, the alloy compatilizer is SAM, and coupling molecule is a silane couplent, and lubricant is TAF.
Embodiment one
Is 50% with each component according to weight percent PA6, ABS is 14.2%, compatilizer is 5%, coupling molecule is 0.3%, and lubricant is 0.3%, and the weight percent of oxidation inhibitor 0.2% carries out proportioning, middling speed stirrer for mixing 5 minutes, with 30% glass fibre blending, be that 180-260 ℃ of twin screw extruder extruded granulation again through melt temperature.Among wherein every component ABS, rubber content is 50-70%.Each temperature control zone temperatures is: twin screw extruder 1-2 district temperature is 180-260 ℃, and 3-4 district temperature is 180-260 ℃, and 5-6 district temperature is 180-260 ℃, and 7-8 district temperature is 180-260 ℃, and 9-10 district temperature is 180-260 ℃.Compound time of delivery in screw rod was 90 seconds;
Embodiment two
Is 25% with each component according to weight percent PA6, ABS is 20%, compatilizer is 5%, coupling molecule is 0.3%, and lubricant is 0.1%, and the weight percent of oxidation inhibitor 0.1% carries out proportioning, middling speed stirrer for mixing 3 minutes, with 49.5% glass fibre blending, be that 180-260 ℃ of twin screw extruder extruded granulation again through melt temperature.Among wherein every component ABS, rubber content is 50-70%.Each zone temperatures is: twin screw extruder 1-2 district temperature is 180-260 ℃, and 3-4 district temperature is 180-260 ℃, and 5-6 district temperature is 180-260 ℃, and 7-8 district temperature is 180-260 ℃, and 9-10 district temperature is 180-260 ℃.Compound time of delivery in screw rod was 90 seconds;
Embodiment three
Is 45% with each component according to weight percent PA6, ABS is 30%, compatilizer is 8%, coupling molecule is 0.8%, and lubricant is 0.7%, and the weight percent of oxidation inhibitor 0.5% carries out proportioning, middling speed stirrer for mixing 7 minutes, with 15% glass fibre blending, be that 180-260 ℃ of twin screw extruder extruded granulation again through melt temperature.Among wherein every component ABS, rubber content is 50-70%.Each zone temperatures is: twin screw extruder 1-2 district temperature is 180-260 ℃, and 3-4 district temperature is 180-260 ℃, and 5-6 district temperature is 180-260 ℃, and 7-8 district temperature is 180-260 ℃, and 9-10 district temperature is 180-260 ℃.Compound time of delivery in screw rod was 60 seconds;
Embodiment four
Is 10% with each component according to weight percent PA6, ABS is 54.2%, compatilizer is 10%, coupling molecule is 0.3%, and lubricant is 0.3%, and the weight percent of oxidation inhibitor 0.2% carries out proportioning, middling speed stirrer for mixing 5 minutes, with 15% glass fibre blending, be that 180-260 ℃ of twin screw extruder extruded granulation again through melt temperature.Among wherein every component ABS, rubber content is 50-70%.Each zone temperatures is: twin screw extruder 1-2 district temperature is 180-260 ℃, and 3-4 district temperature is 180-260 ℃, and 5-6 district temperature is 180-260 ℃, and 7-8 district temperature is 180-260 ℃, and 9-10 district temperature is 180-260 ℃.Compound time of delivery in screw rod was 90 seconds;
Embodiment five
Is 70% with each component according to weight percent PA6, ABS is 10%, compatilizer is 5%, coupling molecule is 1%, and lubricant is 0.8%, and the weight percent of oxidation inhibitor 0.2% carries out proportioning, middling speed stirrer for mixing 5 minutes, with 13% glass fibre blending, be that 180-260 ℃ of twin screw extruder extruded granulation again through melt temperature.Among wherein every component ABS, rubber content is 50-70%.Each zone temperatures is: twin screw extruder 1-2 district temperature is 180-260 ℃, and 3-4 district temperature is 180-260 ℃, and 5-6 district temperature is 180-260 ℃, and 7-8 district temperature is 180-260 ℃, and 9-10 district temperature is 180-260 ℃.Compound time of delivery in screw rod was 120 seconds;
Embodiment six
Is 55% with each component according to weight percent PA6, ABS is 29.7%, compatilizer is 8%, coupling molecule is 0.3%, and lubricant is 1%, and the weight percent of oxidation inhibitor 1% carries out proportioning, middling speed stirrer for mixing 5 minutes, with 5% glass fibre blending, be that 180-260 ℃ of twin screw extruder extruded granulation again through melt temperature.Among wherein every component ABS, rubber content is 50-70%.Each zone temperatures is: twin screw extruder 1-2 district temperature is 180-260 ℃, and 3-4 district temperature is 180-260 ℃, and 5-6 district temperature is 180-260 ℃, and 7-8 district temperature is 180-260 ℃, and 9-10 district temperature is 180-260 ℃.Compound time of delivery in screw rod was 90 seconds;
Embodiment seven
Is 55% with each component according to weight percent PA6, ABS is 9.2%, compatilizer is 5%, coupling molecule is 0.3%, and lubricant is 0.3%, and the weight percent of oxidation inhibitor 0.2% carries out proportioning, middling speed stirrer for mixing 5 minutes, with 30% glass fibre blending, be that 180-260 ℃ of twin screw extruder extruded granulation again through melt temperature.Among wherein every component ABS, rubber content is 50-70%.Each zone temperatures is: twin screw extruder 1-2 district temperature is 180-260 ℃, and 3-4 district temperature is 180-260 ℃, and 5-6 district temperature is 180-260 ℃, and 7-8 district temperature is 180-260 ℃, and 9-10 district temperature is 180-260 ℃.Compound time of delivery in screw rod was 90 seconds;
Embodiment eight
Is 55% with each component according to weight percent PA6, ABS is 10%, compatilizer is 5%, coupling molecule is 0.8%, and lubricant is 0.3%, and the weight percent of oxidation inhibitor 0.2% carries out proportioning, middling speed stirrer for mixing 5 minutes, with 28.7% glass fibre blending, be that 180-260 ℃ of twin screw extruder extruded granulation again through melt temperature.Among wherein every component ABS, rubber content is 50-70%.Each zone temperatures is: twin screw extruder 1-2 district temperature is 180-260 ℃, and 3-4 district temperature is 180-260 ℃, and 5-6 district temperature is 180-260 ℃, and 7-8 district temperature is 180-260 ℃, and 9-10 district temperature is 180-260 ℃.Compound time of delivery in screw rod was 90 seconds;
Embodiment nine
Is 55% with each component according to weight percent PA6, ABS is 9.2%, compatilizer is 5%, coupling molecule is 0.3%, and lubricant is 0.3%, and the weight percent of oxidation inhibitor 0.2% carries out proportioning, middling speed stirrer for mixing 5 minutes, with 30% glass fibre blending, be that 180-260 ℃ of twin screw extruder extruded granulation again through melt temperature.Among wherein every component ABS, rubber content is 50-70%.Each zone temperatures is: twin screw extruder 1-2 district temperature is 180-260 ℃, and 3-4 district temperature is 180-260 ℃, and 5-6 district temperature is 180-260 ℃, and 7-8 district temperature is 180-260 ℃, and 9-10 district temperature is 180-260 ℃.Compound time of delivery in screw rod was 60 seconds;
Embodiment ten
Is 55% with each component according to weight percent PA6, ABS is 9.2%, compatilizer is 5%, coupling molecule is 0.3%, and lubricant is 0.3%, and the weight percent of oxidation inhibitor 0.2% carries out proportioning, middling speed stirrer for mixing 5 minutes, with 30% glass fibre blending, be that 180--260 ℃ of twin screw extruder extruded granulation again through melt temperature.Among wherein every component ABS, rubber content is 50-70%.Each zone temperatures is: twin screw extruder 1-2 district temperature is 180-260 ℃, and 3-4 district temperature is 180-260 ℃, and 5-6 district temperature is 180-260 ℃, and 7-8 district temperature is 180-260 ℃, and 9-10 district temperature is 180-260 ℃.Compound time of delivery in screw rod was 120 seconds.
Performance evaluation mode and implementation standard
The particle that above-mentioned ten embodiment are finished granulation in 110-120 ℃ convection oven dry 4-6 hour again with the injection moulding sample preparation on the 80T injection moulding machine of exsiccant particle, keeps the mould temperature between 70-100 ℃ in the sample making course.
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 the GB/T1634.2 standard, and load is 100mm for the 1.80MPa. span.The test statistics data see Table 1.
Find out from above-mentioned data, the PA6 of same amount, increase shock strength, tensile strength with compatibilizer content, flexural strength and modulus all have tangible increase, when increasing to 5%, the over-all properties of PA6/ABS+GF30 is the most excellent, when the amount of compatilizer continues to increase, stretching, flexural strength, heat-drawn wire descend, and reason is that the rubber constituent that contains in the compatilizer of selecting has played negative impact to above-mentioned performance.
Find out that from above-mentioned data mixing time is very big to the influence of physical and mechanical properties, pellet time of delivery in screw rod is 60 seconds, and fully fusion promptly has the not fusing of part pellet.Cause degraded in mechanical properties.
Routine 1-9 prescription of table 1 and material property table (the following table data are nylon dry state data)
| Embodiment 1 (time of delivery is 90 seconds) | Embodiment 2 (time of delivery is 90 seconds) | Embodiment 3 (time of delivery is 90 seconds) | Embodiment 4 (time of delivery is 90 seconds) | Embodiment 5 (time of delivery is 90 seconds) | Embodiment 6 (time of delivery is 90 seconds) | Embodiment 7 (time of delivery is 90 seconds) | Embodiment 8 (time of delivery is 90 seconds) | Embodiment 9 (time of delivery is 60 seconds) | Embodiment 10 (time of delivery is 120 seconds) | |
| PΛ6 (M12400) | 50 | 55 | 60 | 10 | 70 | 55 | 55 | 55 | 55 | 55 |
| ABS HR2600 | 14.2 | 9.2 | 4.2 | 54.2 | -- | 11.2 | 12.2 | 8.2 | 9.2 | 9.2 |
| SAM308 | 5 | 5 | 5 | 5 | -- | 3 | 2 | 6 | 5 | 5 |
| KH550 | 0.3 | 0.3 | 0.3 | 0.3 | 0 | 0.3 | 0.3 | 0.3 | 0.3 | 0.3 |
| TAF | 0.3 | 0.3 | 0.3 | 0.3 | 0 | 0.3 | 0.3 | 0.3 | 0.3 | 0.3 |
| 1076 | 0.2 | 0.2 | 0.2 | 0.2 | 0 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 |
| White stone 988 glass fibre | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 |
| Heat-drawn wire (℃) | 94.1 | 98.3 | 103.8 | 89.5 | 200 | 96.2 | 94.5 | 94.4 | 98.2 | 98.1 |
| Notched Izod impact strength (KJ/M 2) | 19.8 | 21.2 | 22.0 | 18.2 | 17.8 | 18.0 | 16.3 | 20.2 | 14.7 | 13.5 |
| Tensile strength (MPa) | 94.6 | 101.3 | 103.2 | 89.4 | 130.6 | 98.6 | 96.3 | 100.9 | 67.8 | 78.8 |
| Flexural strength (MPa) | 119.3 | 122.3 | 126.5 | 104.3 | 161.3 | 119.6 | 118.1 | 120.4 | 78.3 | 89.6 |
| Modulus in flexure (MPa) | 5703.3 | 6235.4 | 6352.3 | 5123.3 | 7889.3 | 6102.5 | 6005.3 | 5863.3 | 3490.9 | 4589.8 |
Pellet is when time of delivery is 120 seconds in screw rod, and is big because plasticizing excessively, also causes physical and mechanical properties to descend.Thereby determine pellet in screw rod comparatively the ideal fusion time be 90 seconds.
Being described below of covering property:
According to the chemical compatibility principle: the similar compatibility principle, promptly polarity is close, and consistency is good.Rubber components is close with the elastomeric polarity of surperficial coating thermoplastic, so have better covering property than simple PA6+30%GF, and the PA6+30%GF material that did not handle on the surface is because surface polarity is not enough, be difficult to the coating thermoplastic elastomerics, cause injection-molded item producer will complain the PA6+30%GF particles defective in quality.Used AS, heat-resistant agent in the aforementioned patent 200510025573.0, these two kinds of materials can cause the impact property of material to descend, and the power tool that makes can ftracture when loading onto motor and do drop test, thereby does not reach the use needs.The ABS of the preferred high rubber content of the present invention (the HR2600 rubber content is 60%), the material high-impact of making, and then solved drop test.
The foregoing description seven excellent combination properties, and material cost is lower than simple PA6+30%GF, is the determined prescription of the present invention.
Claims (10)
1, a kind of elastomeric matrix material of coating thermoplastic that is easy to, it is formulated by the starting material of following weight per-cent:
Polymeric amide: 10-70%
Styrene resin 9-30%
Alloy compatilizer 5-10%
Coupling molecule 0.3-0.8%
Oxidation inhibitor 0.1-0.5%
Lubricant 0.1-1%
Glass fibre 5-50%.
2, the elastomeric matrix material of coating thermoplastic that is easy to as claimed in claim 1, it is characterized in that: described polymeric amide is a polycaprolactam.
3, the elastomeric matrix material of coating thermoplastic that is easy to as claimed in claim 1, it is characterized in that: described styrene resin is acrylonitrile-styrene-butadienecopolymer, its rubber content is 50-70%.
4, the elastomeric matrix material of coating thermoplastic that is easy to as claimed in claim 1, it is characterized in that: described alloy compatilizer is phenylethylene-maleic anhydride-vinyl cyanide ternary atactic copolymer.
5, the elastomeric matrix material of coating thermoplastic that is easy to as claimed in claim 1, it is characterized in that: described coupling molecule is a silane couplent.
6, the elastomeric matrix material of coating thermoplastic that is easy to as claimed in claim 1 is characterized in that: described oxidation inhibitor is the positive octadecanol esters of four [β-(3,5-di-tert-butyl-4-hydroxy phenyl) propionic acid].
7, the elastomeric matrix material of coating thermoplastic that is easy to as claimed in claim 1, it is characterized in that: described lubricant is a fatty acid amide.
8, the elastomeric matrix material of coating thermoplastic that is easy to as claimed in claim 1, it is characterized in that: described glass fiber diameter is the 4-17 micron.
9, the preparation method who is easy to the elastomeric matrix material of coating thermoplastic as claimed in claim 1, it may further comprise the steps:
A, take by weighing described raw material according to weight percent;
B, polymeric amide, styrene resin, alloy compatilizer, coupling molecule, oxidation inhibitor, lubricant were mixed in moderate-speed mixers 3-7 minute;
C, above-mentioned mixed raw material is thrown in twin screw extruder, with the glass fibre blending, through melt extruding granulation; Described compound time of delivery in described screw rod is 1-2 minute.
10, the preparation method who is easy to the elastomeric matrix material of coating thermoplastic as claimed in claim 9 is characterized in that: described twin screw extruder comprises ten temperature controlled region; The temperature in described temperature control 1-2 district is 180-260 ℃, and the temperature in temperature control 3-4 district is 180-260 ℃, and the temperature in temperature control 5-6 district is 180-260 ℃, and the temperature in temperature control 7-8 district is 180-260 ℃, and the temperature in temperature control 9-10 district is 180-260 ℃.
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| CNA200710074853XA CN101081929A (en) | 2007-06-08 | 2007-06-08 | Composite material easy for coating thermoplastic elastomer and preparation method thereof |
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| CNA200710074853XA CN101081929A (en) | 2007-06-08 | 2007-06-08 | Composite material easy for coating thermoplastic elastomer and preparation method thereof |
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| CNA200710074853XA Pending CN101081929A (en) | 2007-06-08 | 2007-06-08 | Composite material easy for coating thermoplastic elastomer and preparation method thereof |
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| CN102199347A (en) * | 2011-03-31 | 2011-09-28 | 上海金玺实验室有限公司 | Modified PA/ABS composite material with boiling resistance, high intensity and superior toughness and preparation method thereof |
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| CN111019341A (en) * | 2019-12-31 | 2020-04-17 | 聚威工程塑料(上海)有限公司 | Toughened conductive flame-retardant polyamide 6 composite material and preparation method thereof |
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