CN112239587A - Low-warpage glass fiber reinforced polybutylene terephthalate material and preparation method thereof - Google Patents
Low-warpage glass fiber reinforced polybutylene terephthalate material and preparation method thereof Download PDFInfo
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- 229920001707 polybutylene terephthalate Polymers 0.000 title claims abstract description 69
- 239000003365 glass fiber Substances 0.000 title claims abstract description 68
- 239000000463 material Substances 0.000 title claims abstract description 56
- -1 polybutylene terephthalate Polymers 0.000 title claims abstract description 26
- 238000002360 preparation method Methods 0.000 title claims abstract description 12
- 239000005995 Aluminium silicate Substances 0.000 claims abstract description 35
- 235000012211 aluminium silicate Nutrition 0.000 claims abstract description 35
- 238000001125 extrusion Methods 0.000 claims abstract description 35
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 claims abstract description 35
- 159000000003 magnesium salts Chemical class 0.000 claims abstract description 35
- 239000006087 Silane Coupling Agent Substances 0.000 claims abstract description 24
- 238000002156 mixing Methods 0.000 claims abstract description 16
- 238000005469 granulation Methods 0.000 claims abstract description 14
- 230000003179 granulation Effects 0.000 claims abstract description 14
- 239000000314 lubricant Substances 0.000 claims abstract description 12
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 9
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 9
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000002994 raw material Substances 0.000 claims abstract description 7
- 239000007822 coupling agent Substances 0.000 claims abstract description 5
- 239000011347 resin Substances 0.000 claims abstract description 4
- 229920005989 resin Polymers 0.000 claims abstract description 4
- 238000005303 weighing Methods 0.000 claims abstract description 3
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 claims description 36
- XECAHXYUAAWDEL-UHFFFAOYSA-N acrylonitrile butadiene styrene Chemical compound C=CC=C.C=CC#N.C=CC1=CC=CC=C1 XECAHXYUAAWDEL-UHFFFAOYSA-N 0.000 claims description 15
- 239000004676 acrylonitrile butadiene styrene Substances 0.000 claims description 15
- 238000002844 melting Methods 0.000 claims description 12
- 230000008018 melting Effects 0.000 claims description 12
- 239000013078 crystal Substances 0.000 claims description 6
- 238000001035 drying Methods 0.000 claims description 6
- XMNIXWIUMCBBBL-UHFFFAOYSA-N 2-(2-phenylpropan-2-ylperoxy)propan-2-ylbenzene Chemical group C=1C=CC=CC=1C(C)(C)OOC(C)(C)C1=CC=CC=C1 XMNIXWIUMCBBBL-UHFFFAOYSA-N 0.000 claims description 4
- 239000000835 fiber Substances 0.000 claims description 4
- 239000012760 heat stabilizer Substances 0.000 claims description 4
- 239000003999 initiator Substances 0.000 claims description 4
- 239000002245 particle Substances 0.000 claims description 4
- 239000000843 powder Substances 0.000 claims description 4
- TXQVDVNAKHFQPP-UHFFFAOYSA-N [3-hydroxy-2,2-bis(hydroxymethyl)propyl] octadecanoate Chemical group CCCCCCCCCCCCCCCCCC(=O)OCC(CO)(CO)CO TXQVDVNAKHFQPP-UHFFFAOYSA-N 0.000 claims description 3
- WYTZZXDRDKSJID-UHFFFAOYSA-N (3-aminopropyl)triethoxysilane Chemical compound CCO[Si](OCC)(OCC)CCCN WYTZZXDRDKSJID-UHFFFAOYSA-N 0.000 claims description 2
- 208000005156 Dehydration Diseases 0.000 claims description 2
- 230000018044 dehydration Effects 0.000 claims description 2
- 238000006297 dehydration reaction Methods 0.000 claims description 2
- FWDBOZPQNFPOLF-UHFFFAOYSA-N ethenyl(triethoxy)silane Chemical compound CCO[Si](OCC)(OCC)C=C FWDBOZPQNFPOLF-UHFFFAOYSA-N 0.000 claims description 2
- NKSJNEHGWDZZQF-UHFFFAOYSA-N ethenyl(trimethoxy)silane Chemical compound CO[Si](OC)(OC)C=C NKSJNEHGWDZZQF-UHFFFAOYSA-N 0.000 claims description 2
- 239000000155 melt Substances 0.000 claims description 2
- 229920001897 terpolymer Polymers 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 2
- XOOUIPVCVHRTMJ-UHFFFAOYSA-L zinc stearate Chemical group [Zn+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O XOOUIPVCVHRTMJ-UHFFFAOYSA-L 0.000 claims description 2
- KGRVJHAUYBGFFP-UHFFFAOYSA-N 2,2'-Methylenebis(4-methyl-6-tert-butylphenol) Chemical compound CC(C)(C)C1=CC(C)=CC(CC=2C(=C(C=C(C)C=2)C(C)(C)C)O)=C1O KGRVJHAUYBGFFP-UHFFFAOYSA-N 0.000 claims 1
- SKWZHINXPDOQDF-UHFFFAOYSA-N disilanyl(ethenyl)silane Chemical compound [SiH3][SiH2][SiH2]C=C SKWZHINXPDOQDF-UHFFFAOYSA-N 0.000 claims 1
- FNXFTRLIPAZYQI-UHFFFAOYSA-N octadecan-2-yl propanoate Chemical compound CCCCCCCCCCCCCCCCC(C)OC(=O)CC FNXFTRLIPAZYQI-UHFFFAOYSA-N 0.000 claims 1
- HQYALQRYBUJWDH-UHFFFAOYSA-N trimethoxy(propyl)silane Chemical compound CCC[Si](OC)(OC)OC HQYALQRYBUJWDH-UHFFFAOYSA-N 0.000 claims 1
- SSDSCDGVMJFTEQ-UHFFFAOYSA-N octadecyl 3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoate Chemical compound CCCCCCCCCCCCCCCCCCOC(=O)CCC1=CC(C(C)(C)C)=C(O)C(C(C)(C)C)=C1 SSDSCDGVMJFTEQ-UHFFFAOYSA-N 0.000 description 20
- JKIJEFPNVSHHEI-UHFFFAOYSA-N Phenol, 2,4-bis(1,1-dimethylethyl)-, phosphite (3:1) Chemical compound CC(C)(C)C1=CC(C(C)(C)C)=CC=C1OP(OC=1C(=CC(=CC=1)C(C)(C)C)C(C)(C)C)OC1=CC=C(C(C)(C)C)C=C1C(C)(C)C JKIJEFPNVSHHEI-UHFFFAOYSA-N 0.000 description 19
- 238000004381 surface treatment Methods 0.000 description 19
- 239000002131 composite material Substances 0.000 description 7
- 239000003607 modifier Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 230000005484 gravity Effects 0.000 description 4
- CSNNHWWHGAXBCP-UHFFFAOYSA-L Magnesium sulfate Chemical group [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 description 2
- 239000011707 mineral Substances 0.000 description 2
- 235000010755 mineral Nutrition 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- WPMYUUITDBHVQZ-UHFFFAOYSA-N 3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoic acid Chemical compound CC(C)(C)C1=CC(CCC(O)=O)=CC(C(C)(C)C)=C1O WPMYUUITDBHVQZ-UHFFFAOYSA-N 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 229920006351 engineering plastic Polymers 0.000 description 1
- WOXXJEVNDJOOLV-UHFFFAOYSA-N ethenyl-tris(2-methoxyethoxy)silane Chemical compound COCCO[Si](OCCOC)(OCCOC)C=C WOXXJEVNDJOOLV-UHFFFAOYSA-N 0.000 description 1
- 229910052943 magnesium sulfate Inorganic materials 0.000 description 1
- 235000019341 magnesium sulphate Nutrition 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 239000012745 toughening agent Substances 0.000 description 1
- BPSIOYPQMFLKFR-UHFFFAOYSA-N trimethoxy-[3-(oxiran-2-ylmethoxy)propyl]silane Chemical compound CO[Si](OC)(OC)CCCOCC1CO1 BPSIOYPQMFLKFR-UHFFFAOYSA-N 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/04—Reinforcing macromolecular compounds with loose or coherent fibrous material
- C08J5/0405—Reinforcing macromolecular compounds with loose or coherent fibrous material with inorganic fibres
- C08J5/043—Reinforcing macromolecular compounds with loose or coherent fibrous material with inorganic fibres with glass fibres
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2367/00—Characterised by the use of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Derivatives of such polymers
- C08J2367/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2423/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2423/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2423/04—Homopolymers or copolymers of ethene
- C08J2423/08—Copolymers of ethene
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2455/00—Characterised by the use of homopolymers or copolymers, obtained by polymerisation reactions only involving carbon-to-carbon unsaturated bonds, not provided for in groups C08J2423/00 - C08J2453/00
- C08J2455/02—Acrylonitrile-Butadiene-Styrene [ABS] polymers
-
- 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
- C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
- C08K13/06—Pretreated ingredients and ingredients covered by the main groups C08K3/00 - C08K7/00
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- 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
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
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- 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
- C08K3/34—Silicon-containing compounds
- C08K3/346—Clay
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- 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
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/10—Esters; Ether-esters
- C08K5/101—Esters; Ether-esters of monocarboxylic acids
- C08K5/103—Esters; Ether-esters of monocarboxylic acids with polyalcohols
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- 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
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/13—Phenols; Phenolates
- C08K5/134—Phenols containing ester groups
- C08K5/1345—Carboxylic esters of phenolcarboxylic acids
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- 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
- C08K7/00—Use of ingredients characterised by shape
- C08K7/02—Fibres or whiskers
- C08K7/04—Fibres or whiskers inorganic
- C08K7/08—Oxygen-containing compounds
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- 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
- C08K7/00—Use of ingredients characterised by shape
- C08K7/02—Fibres or whiskers
- C08K7/04—Fibres or whiskers inorganic
- C08K7/14—Glass
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- 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
- C08K9/00—Use of pretreated ingredients
- C08K9/04—Ingredients treated with organic substances
- C08K9/06—Ingredients treated with organic substances with silicon-containing compounds
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Abstract
The invention provides a low-warpage glass fiber reinforced polybutylene terephthalate material and a preparation method thereof, wherein the raw materials comprise the following components in parts by weight: 35-45% of PBT material, 10-15% of ABS material, 2-5% of KT-2 material, 4-8% of magnesium salt whisker material, 1-5% of AX8900 resin material, 2-6% of nano kaolin material, 25-35% of glass fiber material, 10.1-0.3% of antioxidant, 20.1-0.3% of antioxidant, 0.2-0.5% of lubricant material and 0.1-0.2% of coupling agent material; the preparation process comprises the following steps: step 1, preparing a toughening compatilizer KT-2; step 2, processing the material extruded by the extruder head to obtain a maleic anhydride grafted ABS toughening compatilizer; step 3, weighing polybutylene terephthalate and other raw materials according to the weight percentage and uniformly mixing; step 4, treating the glass fiber by a silane coupling agent; and 5, putting the uniformly mixed raw materials except the glass fiber into a main feeding port of a double-screw extruder, adding the glass fiber obtained in the step 4 from a side feeding port, and performing melt extrusion and granulation by the extruder.
Description
Technical Field
The invention relates to a low-warpage glass fiber reinforced polybutylene terephthalate (PBT) material and a preparation method thereof, in particular to a glass fiber reinforced PBT material capable of remarkably improving the warping degree of a product.
Background
The polybutylene terephthalate (PBT) is an engineering plastic with excellent comprehensive performance, has excellent mechanical property, chemical corrosion resistance and good fluidity, has high application value in engineering, and can be widely applied to the industries of electronic and electric appliances, automobiles, mechanical equipment and precise instruments because parts prepared from PBT materials can obtain excellent heat resistance, flame retardance, electric appliance insulativity and forming processability. However, in recent years, due to the increasing demand of large thin-walled parts, the low warpage of PBT materials becomes an important problem, and the general grade glass fiber reinforced PBT has large warpage, and once the warpage problem makes the market sale of PBT embarrassing, so various manufacturers pay great attention to research and development on the low warpage grade PBT. The problem of how to improve the defects of the PBT is attracted by a great deal of scholars, and particularly, the research on reducing the warpage of the PBT material is important.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides the low-warpage glass fiber reinforced polybutylene terephthalate material which is simple in preparation process, low in cost and excellent in various physical and mechanical properties, and the preparation method thereof.
In order to achieve the purpose, the low-warpage glass fiber reinforced polybutylene terephthalate material provided by the invention comprises the following raw materials in parts by weight: (%)
PBT 35-45%
ABS 10-15%
KT-2 2-5%
4 to 8 percent of magnesium salt whisker
AX8900 1-5%
2 to 6 percent of nano kaolin
25 to 35 percent of glass fiber
10.1 to 0.3 percent of antioxidant
20.1 to 0.3 percent of antioxidant
0.2 to 0.5 percent of lubricant
0.1 to 0.2 percent of coupling agent
Wherein the KT-2 is a maleic anhydride grafted ABS material which is self-made by a company and is used as a compatilizer.
The AX8900 resin is an ethylene-methyl acrylate-glycidyl methacrylate random terpolymer, has excellent toughening effect, and is used as a toughening agent in the invention.
The mesh number of the nano kaolin is more than 2000 mesh number, and silane coupling agent is used for pretreatment. The nanometer kaolin can effectively improve the anisotropy brought by PBT crystallization and glass fiber orientation.
The polybutylene terephthalate has the relative density of 1.31-1.35, the melting point of 220-230 ℃ and the melt viscosity of 0.6-0.9.
The diameter of the glass fiber is 6-17 microns.
The lubricant is pentaerythritol stearate PETS.
The antioxidant is one of beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionic acid octadecyl ester or tetra [ beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionic acid ] pentaerythritol ester.
The coupling agent is one of gamma- (2, 3-epoxypropoxy) propyl trimethoxy silane, vinyl triethoxy silane, vinyl trimethoxy silane, vinyl tri (beta-methoxyethoxy) silane, gamma-aminopropyl triethoxy silane and N-beta- (aminoethyl) -gamma-aminopropyl methyl dimethoxy silane.
The magnesium salt whisker is single crystal fiber white powder with the relative density of 2.2-2.4g/cm3, the diameter of less than 1.0 micron and the average length of 10-80 microns, and the chemical formula of the magnesium salt whisker is MgSO4 & 5Mg (OH)2 & 3H 2O. The invention adopts the single crystal fibrous white mineral powder with a certain length-diameter ratio as the warping modifier of the glass fiber reinforced PBT material, and the warping problem of a material part is well solved due to the tiny special single crystal fiber structure of the single crystal fibrous white mineral powder. Meanwhile, the modifier also has obvious reinforcing and stiffening effects, so that the prepared material has excellent physical and mechanical properties.
In order to achieve the purpose, the preparation method of the low-warpage glass fiber reinforced polybutylene terephthalate material provided by the invention specifically comprises the following steps:
step 1, a preparation process of a toughening compatilizer KT-2 comprises the following steps: putting 100 parts of acrylonitrile-butadiene-styrene terpolymer, 1-2 parts of maleic anhydride, 0.05-0.1 part of initiator, 0.2-0.5 part of heat stabilizer and 0.2-0.5 part of lubricant into a high-speed mixer, uniformly mixing for 5min, and extruding by using a double screw to prepare KT-2; the extrusion temperature was set as: the first zone is 70-100 ℃, the second zone is 180-190 ℃, the third zone is 185-195 ℃, the fourth zone is 185-195 ℃, the fifth zone is 185-195 ℃, the sixth zone is 180-190 ℃, the seventh zone is 180-190 ℃, the eighth zone is 180-190 ℃, the ninth zone is 165-175 ℃, and the head is 200-230 ℃; the residence time of each zone is 6-8 seconds; the number of revolutions of the main machine is as follows: 450-550 r/min; the initiator is dicumyl peroxide (DCP); the heat stabilizer is zinc stearate;
2, carrying out underwater granulation, dehydrator and vibrating screen on the material extruded by the extruder head to obtain particles;
drying to obtain maleic anhydride grafted ABS toughening compatilizer; wherein: controlling the grain size of the cut grains to be 3-4 mm; the water content of the particles after dehydration treatment by the dehydrator is controlled below 0.3 percent; the drying temperature is set to 50-60 ℃ and the drying time is set to 0.5 h.
And 3, weighing polybutylene terephthalate, magnesium salt whiskers, a compatilizer KT-2, ABS and AX8900 flexibilizer according to the weight percentage, and uniformly mixing the nano kaolin and the antioxidant in a high-speed mixer for 5 min.
And 4, treating the glass fiber by using a silane coupling agent.
And 5, placing the uniformly mixed raw materials except the glass fiber into a main feeding port of a double-screw extruder, adding the glass fiber obtained in the step 4 from a side feeding port, and performing melt extrusion and granulation by the extruder, wherein the extrusion temperature is set as follows: the first zone is 70-100 ℃, the second zone is 220-240 ℃, the third zone is 230-250 ℃, the fourth zone is 230-250 ℃, the fifth zone is 230-250 ℃, the sixth zone is 220-240 ℃, the seventh zone is 220-240 ℃, the eighth zone is 240-270 ℃ and the head is 210-230 ℃; the residence time of each zone is 6-8 seconds; the number of revolutions of the main machine is as follows: 450-550 r/min;
the invention has the following remarkable advantages:
the glass fiber reinforced PBT composite material prepared by the invention has the characteristic of low warpage.
The glass fiber reinforced polybutylene terephthalate composite material provided by the invention has the advantages of simple preparation process and low cost.
The invention adds the efficient warping modifier, and the tiny special single crystal fiber structure of the efficient warping modifier enables the warping problem of the material part to be well solved. Meanwhile, the modifier also has obvious reinforcing and stiffening effects, so that the prepared material has excellent physical and mechanical properties.
Detailed Description
The present invention will be further described with reference to the following specific examples; the invention is further verified by changing the dosage of KT-2, ABS, magnesium salt whisker, nano-grade kaolin and the like.
Example 1
According to the weight percentage of each component, 41 parts of PBT 1100-211M, 13 parts of acrylonitrile-butadiene-styrene terpolymer, 2 parts of KT-2, 6 parts of magnesium salt whisker, 5 parts of nano kaolin, 3 parts of AX8900, 0.2 part of antioxidant 1076, 0.2 part of antioxidant 168 and 0.3 part of PETS are placed in a high-speed mixer to be mixed uniformly and are put into a double-screw extruder; then adding the glass fiber and 30% of the glass fiber subjected to surface treatment by the silane coupling agent into a main feeding port and a side feeding port of a double-screw extruder respectively in the double-screw extruder, and performing melt extrusion granulation by the extruder.
The extrusion temperature was set as: the temperature of the first area is 90 ℃, the temperature of the second area is 220 ℃, the temperature of the third area is 230 ℃, the temperature of the fourth area is 235 ℃, the temperature of the fifth area is 240 ℃, the temperature of the sixth area is 2400 ℃, the temperature of the seventh area is 230 ℃, the temperature of the eighth area is 245 ℃, and the temperature of the machine head is 220 ℃; the residence time per zone was 6 seconds; the number of revolutions of the main machine is as follows: 500 r/min.
Example 2
According to the weight percentage of each component, 40 parts of PBT 1100-211M, 13 parts of acrylonitrile-butadiene-styrene terpolymer, 3 parts of KT-2, 6 parts of magnesium salt whisker, 5 parts of nano kaolin, 3 parts of AX8900, 0.2 part of antioxidant 1076, 0.2 part of antioxidant 168 and 0.3 part of PETS are placed in a high-speed mixer to be mixed uniformly and are put into a double-screw extruder; then adding the glass fiber and 30% of the glass fiber subjected to surface treatment by the silane coupling agent into a main feeding port and a side feeding port of a double-screw extruder respectively in the double-screw extruder, and performing melt extrusion granulation by the extruder.
The extrusion temperature was set as: the temperature of the first area is 90 ℃, the temperature of the second area is 220 ℃, the temperature of the third area is 230 ℃, the temperature of the fourth area is 235 ℃, the temperature of the fifth area is 240 ℃, the temperature of the sixth area is 2400 ℃, the temperature of the seventh area is 230 ℃, the temperature of the eighth area is 245 ℃, and the temperature of the machine head is 220 ℃; the residence time per zone was 6 seconds; the number of revolutions of the main machine is as follows: 500 r/min.
Example 3
According to the weight percentage of each component, 39 parts of PBT 1100-211M, 13 parts of acrylonitrile-butadiene-styrene terpolymer, 4 parts of KT-2, 6 parts of magnesium salt whisker, 5 parts of nano kaolin, 3 parts of AX8900, 0.2 part of antioxidant 1076, 0.2 part of antioxidant 168 and 0.3 part of PETS are placed in a high-speed mixer to be mixed uniformly and are put into a double-screw extruder; then adding the glass fiber and 30% of the glass fiber subjected to surface treatment by the silane coupling agent into a main feeding port and a side feeding port of a double-screw extruder respectively in the double-screw extruder, and performing melt extrusion granulation by the extruder. The extrusion temperature was set as: the temperature of the first area is 90 ℃, the temperature of the second area is 220 ℃, the temperature of the third area is 230 ℃, the temperature of the fourth area is 235 ℃, the temperature of the fifth area is 240 ℃, the temperature of the sixth area is 2400 ℃, the temperature of the seventh area is 230 ℃, the temperature of the eighth area is 245 ℃, and the temperature of the machine head is 220 ℃; the residence time per zone was 6 seconds; the number of revolutions of the main machine is as follows: 500 r/min.
Example 4
According to the weight percentage of each component, 38 parts of PBT 1100-211M, 13 parts of acrylonitrile-butadiene-styrene terpolymer, 5 parts of KT-2, 6 parts of magnesium salt whisker, 5 parts of nano kaolin, 3 parts of AX8900, 0.2 part of antioxidant 1076, 0.2 part of antioxidant 168 and 0.3 part of PETS are placed in a high-speed mixer to be mixed uniformly and are put into a double-screw extruder; then adding the glass fiber and 30% of the glass fiber subjected to surface treatment by the silane coupling agent into a main feeding port and a side feeding port of a double-screw extruder respectively in the double-screw extruder, and performing melt extrusion granulation by the extruder.
The extrusion temperature was set as: the temperature of the first area is 90 ℃, the temperature of the second area is 220 ℃, the temperature of the third area is 230 ℃, the temperature of the fourth area is 235 ℃, the temperature of the fifth area is 240 ℃, the temperature of the sixth area is 2400 ℃, the temperature of the seventh area is 230 ℃, the temperature of the eighth area is 245 ℃, and the temperature of the machine head is 220 ℃; the residence time per zone was 6 seconds; the number of revolutions of the main machine is as follows: 500 r/min.
Example 5
According to the weight percentage of each component, 42 parts of PBT 1100-211M, 11 parts of acrylonitrile-butadiene-styrene terpolymer, 3 parts of KT-2, 6 parts of magnesium salt whisker, 5 parts of nano kaolin, 3 parts of AX8900, 0.2 part of antioxidant 1076, 0.2 part of antioxidant 168 and 0.3 part of lubricant PETS are placed in a high-speed mixer to be mixed uniformly and put into a double-screw extruder; then adding the glass fiber and 30% of the glass fiber subjected to surface treatment by the silane coupling agent into a main feeding port and a side feeding port of a double-screw extruder respectively in the double-screw extruder, and performing melt extrusion granulation by the extruder.
The extrusion temperature was set as: the temperature of the first area is 90 ℃, the temperature of the second area is 220 ℃, the temperature of the third area is 230 ℃, the temperature of the fourth area is 235 ℃, the temperature of the fifth area is 240 ℃, the temperature of the sixth area is 2400 ℃, the temperature of the seventh area is 230 ℃, the temperature of the eighth area is 245 ℃, and the temperature of the machine head is 220 ℃; the residence time per zone was 6 seconds; the number of revolutions of the main machine is as follows: 500 r/min.
Example 6
According to the weight percentage of each component, 41 parts of PBT 1100-211M, 12 parts of acrylonitrile-butadiene-styrene terpolymer, 3 parts of KT-2, 6 parts of magnesium salt whisker, 5 parts of nano kaolin, 3 parts of AX8900, 0.2 part of antioxidant 1076, 0.2 part of antioxidant 168 and 0.3 part of lubricant PETS are placed in a high-speed mixer to be mixed uniformly and put into a double-screw extruder; then adding the glass fiber and 30% of the glass fiber subjected to surface treatment by the silane coupling agent into a main feeding port and a side feeding port of a double-screw extruder respectively in the double-screw extruder, and performing melt extrusion granulation by the extruder.
The extrusion temperature was set as: the temperature of the first area is 90 ℃, the temperature of the second area is 220 ℃, the temperature of the third area is 230 ℃, the temperature of the fourth area is 235 ℃, the temperature of the fifth area is 240 ℃, the temperature of the sixth area is 2400 ℃, the temperature of the seventh area is 230 ℃, the temperature of the eighth area is 245 ℃, and the temperature of the machine head is 220 ℃; the residence time per zone was 6 seconds; the number of revolutions of the main machine is as follows: 500 r/min.
Example 7
According to the weight percentage of each component, 40 parts of PBT 1100-211M, 13 parts of acrylonitrile-butadiene-styrene terpolymer, 3 parts of KT-2, 6 parts of magnesium salt whisker, 5 parts of nano kaolin, 3 parts of AX8900, 0.2 part of antioxidant 1076, 0.2 part of antioxidant 168 and 0.3 part of lubricant PETS are placed in a high-speed mixer to be mixed uniformly and put into a double-screw extruder; then adding the glass fiber and 30% of the glass fiber subjected to surface treatment by the silane coupling agent into a main feeding port and a side feeding port of a double-screw extruder respectively in the double-screw extruder, and performing melt extrusion granulation by the extruder.
The extrusion temperature was set as: the temperature of the first area is 90 ℃, the temperature of the second area is 220 ℃, the temperature of the third area is 230 ℃, the temperature of the fourth area is 235 ℃, the temperature of the fifth area is 240 ℃, the temperature of the sixth area is 2400 ℃, the temperature of the seventh area is 230 ℃, the temperature of the eighth area is 245 ℃, and the temperature of the machine head is 220 ℃; the residence time per zone was 6 seconds; the number of revolutions of the main machine is as follows: 500 r/min.
Example 8
According to the weight percentage of each component, 39 parts of PBT 1100-211M, 14 parts of acrylonitrile-butadiene-styrene terpolymer, 3 parts of KT-2, 6 parts of magnesium salt whisker, 5 parts of nano kaolin, 3 parts of AX8900, 0.2 part of antioxidant 1076, 0.2 part of antioxidant 168 and 0.3 part of lubricant PETS are placed in a high-speed mixer to be mixed uniformly and put into a double-screw extruder; then adding the glass fiber and 30% of the glass fiber subjected to surface treatment by the silane coupling agent into a main feeding port and a side feeding port of a double-screw extruder respectively in the double-screw extruder, and performing melt extrusion granulation by the extruder.
The extrusion temperature was set as: the temperature of the first area is 90 ℃, the temperature of the second area is 220 ℃, the temperature of the third area is 230 ℃, the temperature of the fourth area is 235 ℃, the temperature of the fifth area is 240 ℃, the temperature of the sixth area is 2400 ℃, the temperature of the seventh area is 230 ℃, the temperature of the eighth area is 245 ℃, and the temperature of the machine head is 220 ℃; the residence time per zone was 6 seconds; the number of revolutions of the main machine is as follows: 500 r/min.
Example 9
According to the weight percentage of each component, 38 parts of PBT 1100-211M, 15 parts of acrylonitrile-butadiene-styrene terpolymer, 3 parts of KT-2, 6 parts of magnesium salt whisker, 5 parts of nano kaolin, 3 parts of AX8900, 0.2 part of antioxidant 1076, 0.2 part of antioxidant 168 and 0.3 part of lubricant PETS are placed in a high-speed mixer to be mixed uniformly and put into a double-screw extruder; then adding the glass fiber and 30% of the glass fiber subjected to surface treatment by the silane coupling agent into a main feeding port and a side feeding port of a double-screw extruder respectively in the double-screw extruder, and performing melt extrusion granulation by the extruder.
The extrusion temperature was set as: the temperature of the first area is 90 ℃, the temperature of the second area is 220 ℃, the temperature of the third area is 230 ℃, the temperature of the fourth area is 235 ℃, the temperature of the fifth area is 240 ℃, the temperature of the sixth area is 2400 ℃, the temperature of the seventh area is 230 ℃, the temperature of the eighth area is 245 ℃, and the temperature of the machine head is 220 ℃; the residence time per zone was 6 seconds; the number of revolutions of the main machine is as follows: 500 r/min.
Example 10
According to the weight percentage of each component, 42 parts of PBT 1100-211M, 13 parts of acrylonitrile-butadiene-styrene terpolymer, 3 parts of KT-2, 4 parts of magnesium salt whisker, 5 parts of nano kaolin, 3 parts of AX8900, 0.2 part of antioxidant 1076, 0.2 part of antioxidant 168 and 0.3 part of PETS are placed in a high-speed mixer to be mixed uniformly and put into a double-screw extruder; then mixing with 30 percent of glass fiber subjected to surface treatment by the silane coupling agent in a double-screw extruder, melting, extruding and granulating.
The extrusion temperature was set as: the temperature of the first area is 90 ℃, the temperature of the second area is 220 ℃, the temperature of the third area is 230 ℃, the temperature of the fourth area is 235 ℃, the temperature of the fifth area is 240 ℃, the temperature of the sixth area is 2400 ℃, the temperature of the seventh area is 230 ℃, the temperature of the eighth area is 245 ℃, and the temperature of the machine head is 220 ℃; the residence time per zone was 6 seconds; the number of revolutions of the main machine is as follows: 500 r/min.
Example 11
According to the weight percentage of each component, 41 parts of PBT 1100-211M, 13 parts of acrylonitrile-butadiene-styrene terpolymer, 3 parts of KT-2, 5 parts of magnesium salt whisker, 5 parts of nano kaolin, 3 parts of AX8900, 0.2 part of antioxidant 1076, 0.2 part of antioxidant 168 and 0.3 part of PETS are placed in a high-speed mixer to be mixed uniformly and are put into a double-screw extruder; then mixing with 30 percent of glass fiber subjected to surface treatment by the silane coupling agent in a double-screw extruder, melting, extruding and granulating.
The extrusion temperature was set as: the temperature of the first area is 90 ℃, the temperature of the second area is 220 ℃, the temperature of the third area is 230 ℃, the temperature of the fourth area is 235 ℃, the temperature of the fifth area is 240 ℃, the temperature of the sixth area is 2400 ℃, the temperature of the seventh area is 230 ℃, the temperature of the eighth area is 245 ℃, and the temperature of the machine head is 220 ℃; the residence time per zone was 6 seconds; the number of revolutions of the main machine is as follows: 500 r/min.
Example 12
According to the weight percentage of each component, 40 parts of PBT 1100-211M, 13 parts of acrylonitrile-butadiene-styrene terpolymer, 3 parts of KT-2, 6 parts of magnesium salt whisker, 5 parts of nano kaolin, 3 parts of AX8900, 0.2 part of antioxidant 1076, 0.2 part of antioxidant 168 and 0.3 part of PETS are placed in a high-speed mixer to be mixed uniformly and are put into a double-screw extruder; then mixing with 30 percent of glass fiber subjected to surface treatment by the silane coupling agent in a double-screw extruder, melting, extruding and granulating.
The extrusion temperature was set as: the temperature of the first area is 90 ℃, the temperature of the second area is 220 ℃, the temperature of the third area is 230 ℃, the temperature of the fourth area is 235 ℃, the temperature of the fifth area is 240 ℃, the temperature of the sixth area is 2400 ℃, the temperature of the seventh area is 230 ℃, the temperature of the eighth area is 245 ℃, and the temperature of the machine head is 220 ℃; the residence time per zone was 6 seconds; the number of revolutions of the main machine is as follows: 500 r/min.
Example 13
According to the weight percentage of each component, 39 parts of PBT 1100-211M, 13 parts of acrylonitrile-butadiene-styrene terpolymer, 3 parts of KT-2, 7 parts of magnesium salt whisker, 5 parts of nano kaolin, 3 parts of AX8900, 0.2 part of antioxidant 1076, 0.2 part of antioxidant 168 and 0.3 part of PETS are placed in a high-speed mixer to be mixed uniformly and are put into a double-screw extruder; then mixing with 30 percent of glass fiber subjected to surface treatment by the silane coupling agent in a double-screw extruder, melting, extruding and granulating.
The extrusion temperature was set as: the temperature of the first area is 90 ℃, the temperature of the second area is 220 ℃, the temperature of the third area is 230 ℃, the temperature of the fourth area is 235 ℃, the temperature of the fifth area is 240 ℃, the temperature of the sixth area is 2400 ℃, the temperature of the seventh area is 230 ℃, the temperature of the eighth area is 245 ℃, and the temperature of the machine head is 220 ℃; the residence time per zone was 6 seconds; the number of revolutions of the main machine is as follows: 500 r/min.
Example 14
According to the weight percentage of each component, 38 parts of PBT 1100-211M, 13 parts of acrylonitrile-butadiene-styrene terpolymer, 3 parts of KT-2, 8 parts of magnesium salt whisker, 5 parts of nano kaolin, 3 parts of AX8900, 0.2 part of antioxidant 1076, 0.2 part of antioxidant 168 and 0.3 part of PETS are placed in a high-speed mixer to be mixed uniformly and are put into a double-screw extruder; then mixing with 30 percent of glass fiber subjected to surface treatment by the silane coupling agent in a double-screw extruder, melting, extruding and granulating.
The extrusion temperature was set as: the temperature of the first area is 90 ℃, the temperature of the second area is 220 ℃, the temperature of the third area is 230 ℃, the temperature of the fourth area is 235 ℃, the temperature of the fifth area is 240 ℃, the temperature of the sixth area is 2400 ℃, the temperature of the seventh area is 230 ℃, the temperature of the eighth area is 245 ℃, and the temperature of the machine head is 220 ℃; the residence time per zone was 6 seconds; the number of revolutions of the main machine is as follows: 500 r/min.
Example 15
According to the weight percentage of each component, 43 parts of PBT 1100-211M, 13 parts of acrylonitrile-butadiene-styrene terpolymer, 3 parts of KT-2, 6 parts of magnesium salt whisker, 2 parts of nano kaolin, 3 parts of AX8900, 0.2 part of antioxidant 1076, 0.2 part of antioxidant 168 and 0.3 part of PETS are placed in a high-speed mixer to be mixed uniformly and are put into a double-screw extruder; then mixing with 30 percent of glass fiber subjected to surface treatment by the silane coupling agent in a double-screw extruder, melting, extruding and granulating.
The extrusion temperature was set as: the temperature of the first area is 90 ℃, the temperature of the second area is 220 ℃, the temperature of the third area is 230 ℃, the temperature of the fourth area is 235 ℃, the temperature of the fifth area is 240 ℃, the temperature of the sixth area is 2400 ℃, the temperature of the seventh area is 230 ℃, the temperature of the eighth area is 245 ℃, and the temperature of the machine head is 220 ℃; the residence time per zone was 6 seconds; the number of revolutions of the main machine is as follows: 500 r/min.
Example 16
According to the weight percentage of each component, 42 parts of PBT 1100-211M, 13 parts of acrylonitrile-butadiene-styrene terpolymer, 3 parts of KT-2, 6 parts of magnesium salt whisker, 3 parts of nano kaolin, 3 parts of AX8900, 0.2 part of antioxidant 1076, 0.2 part of antioxidant 168 and 0.3 part of PETS are placed in a high-speed mixer to be mixed uniformly and put into a double-screw extruder; then mixing with 30 percent of glass fiber subjected to surface treatment by the silane coupling agent in a double-screw extruder, melting, extruding and granulating.
The extrusion temperature was set as: the temperature of the first area is 90 ℃, the temperature of the second area is 220 ℃, the temperature of the third area is 230 ℃, the temperature of the fourth area is 235 ℃, the temperature of the fifth area is 240 ℃, the temperature of the sixth area is 2400 ℃, the temperature of the seventh area is 230 ℃, the temperature of the eighth area is 245 ℃, and the temperature of the machine head is 220 ℃; the residence time per zone was 6 seconds; the number of revolutions of the main machine is as follows: 500 r/min.
Example 17
According to the weight percentage of each component, 41 parts of PBT 1100-211M, 13 parts of acrylonitrile-butadiene-styrene terpolymer, 3 parts of KT-2, 6 parts of magnesium salt whisker, 4 parts of nano kaolin, 3 parts of AX8900, 0.2 part of antioxidant 1076, 0.2 part of antioxidant 168 and 0.3 part of PETS are placed in a high-speed mixer to be mixed uniformly and are put into a double-screw extruder; then mixing with 30 percent of glass fiber subjected to surface treatment by the silane coupling agent in a double-screw extruder, melting, extruding and granulating.
The extrusion temperature was set as: the temperature of the first area is 90 ℃, the temperature of the second area is 220 ℃, the temperature of the third area is 230 ℃, the temperature of the fourth area is 235 ℃, the temperature of the fifth area is 240 ℃, the temperature of the sixth area is 2400 ℃, the temperature of the seventh area is 230 ℃, the temperature of the eighth area is 245 ℃, and the temperature of the machine head is 220 ℃; the residence time per zone was 6 seconds; the number of revolutions of the main machine is as follows: 500 r/min.
Example 18
According to the weight percentage of each component, 40 parts of PBT 1100-211M, 13 parts of acrylonitrile-butadiene-styrene terpolymer, 3 parts of KT-2, 6 parts of magnesium salt whisker, 5 parts of nano kaolin, 3 parts of AX8900, 0.2 part of antioxidant 1076, 0.2 part of antioxidant 168 and 0.3 part of PETS are placed in a high-speed mixer to be mixed uniformly and are put into a double-screw extruder; then mixing with 30 percent of glass fiber subjected to surface treatment by the silane coupling agent in a double-screw extruder, melting, extruding and granulating.
The extrusion temperature was set as: the temperature of the first area is 90 ℃, the temperature of the second area is 220 ℃, the temperature of the third area is 230 ℃, the temperature of the fourth area is 235 ℃, the temperature of the fifth area is 240 ℃, the temperature of the sixth area is 2400 ℃, the temperature of the seventh area is 230 ℃, the temperature of the eighth area is 245 ℃, and the temperature of the machine head is 220 ℃; the residence time per zone was 6 seconds; the number of revolutions of the main machine is as follows: 500 r/min.
Example 19
According to the weight percentage of each component, 39 parts of PBT 1100-211M, 13 parts of acrylonitrile-butadiene-styrene terpolymer, 3 parts of KT-2, 6 parts of magnesium salt whisker, 6 parts of nano kaolin, 3 parts of AX8900, 0.2 part of antioxidant 1076, 0.2 part of antioxidant 168 and 0.3 part of PETS are placed in a high-speed mixer to be mixed uniformly and put into a double-screw extruder; then mixing with 30 percent of glass fiber subjected to surface treatment by the silane coupling agent in a double-screw extruder, melting, extruding and granulating.
The extrusion temperature was set as: the temperature of the first area is 90 ℃, the temperature of the second area is 220 ℃, the temperature of the third area is 230 ℃, the temperature of the fourth area is 235 ℃, the temperature of the fifth area is 240 ℃, the temperature of the sixth area is 2400 ℃, the temperature of the seventh area is 230 ℃, the temperature of the eighth area is 245 ℃, and the temperature of the machine head is 220 ℃; the residence time per zone was 6 seconds; the number of revolutions of the main machine is as follows: 500 r/min.
Table 1: influence of different addition amounts of KT-2 on the reinforced PBT composite material.
| Name of Material | Example 1 | Example 2 | Example 3 | Example 4 |
| PBT(%) | 41 | 40 | 39 | 38 |
| KT-2(%) | 2 | 3 | 4 | 5 |
| ABS（%） | 13 | 13 | 13 | 13 |
| Magnesium salt whisker (%) | 6 | 6 | 6 | 6 |
| AX8900 | 3 | 3 | 3 | 3 |
| Nano kaolin | 5 | 5 | 5 | 5 |
| 1076（%） | 0.2 | 0.2 | 0.2 | 0.2 |
| 168（%） | 0.2 | 0.2 | 0.2 | 0.2 |
| PETS（%） | 0.3 | 0.3 | 0.3 | 0.3 |
| Glass fiber (%) | 30 | 30 | 30 | 30 |
| Notched impact Strength (KJ/m)2) | 8.9 | 10.2 | 9.8 | 9.6 |
| Tensile strength (Mpa) | 112 | 122 | 120 | 118 |
| Elongation at Break (%) | 2.5 | 2.9 | 3.1 | 3.5 |
| Flexural strength (Mpa) | 176 | 190 | 188 | 185 |
| Flexural modulus (Kpa) | 9.0 | 10.6 | 10.5 | 10.8 |
| Heat distortion temperature (1.8 MPa) (. degree.C.) | 169 | 182 | 180 | 178 |
| Warping degree (mm) | 1.8 | 0.5 | 0.7 | 0.9 |
| Specific gravity (g/cm)) | 1.395 | 1.418 | 1.413 | 1.410 |
Table 2: influence of different ABS addition amounts on the reinforced PBT composite material.
| Name of Material | Example 5 | Example 6 | Example 7 | Example 8 | Example 9 |
| PBT(%) | 42 | 41 | 40 | 39 | 38 |
| ABS(%) | 11 | 12 | 13 | 14 | 15 |
| KT-2（%） | 3 | 3 | 3 | 3 | 3 |
| AX8900 | 3 | 3 | 3 | 3 | 3 |
| Nano kaolin | 5 | 5 | 5 | 5 | 5 |
| Magnesium salt whisker (%) | 6 | 6 | 6 | 6 | 6 |
| 1076（%） | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 |
| 168（%） | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 |
| PETS（%） | 0.3 | 0.3 | 0.3 | 0.3 | 0.3 |
| Glass fiber (%) | 30 | 30 | 30 | 30 | 30 |
| Notched impact Strength (KJ/m)2) | 9 | 11 | 12 | 10 | 10 |
| Tensile strength (Mpa) | 116 | 118 | 120 | 118 | 115 |
| Elongation at Break (%) | 2.5 | 2.9 | 3.0 | 3.5 | 3.4 |
| Flexural strength (Mpa) | 179 | 182 | 186 | 184 | 185 |
| Flexural modulus (Kpa) | 9.0 | 9.6 | 10.5 | 10.5 | 10.8 |
| Heat distortion temperature (1.8 MPa) (. degree.C.) | 179 | 180 | 182 | 178 | 177 |
| Warping degree (mm) | 1.5 | 1.0 | 0.7 | 0.8 | 0.8 |
| Specific gravity (g/cm)) | 1.397 | 1.402 | 1.414 | 1.408 | 1.398 |
Table 3: influence of different addition amounts of magnesium salt whiskers on the reinforced PBT composite material.
| Name of Material | Example 10 | Example 11 | Example 12 | Example 13 | Example 14 |
| PBT(%) | 42 | 41 | 40 | 39 | 38 |
| KT-2(%) | 3 | 3 | 3 | 3 | 3 |
| ABS（%） | 13 | 13 | 13 | 13 | 13 |
| Magnesium salt whisker (%) | 4 | 5 | 6 | 7 | 8 |
| AX8900 | 3 | 3 | 3 | 3 | 3 |
| Nano kaolin | 5 | 5 | 5 | 5 | 5 |
| 1076（%） | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 |
| 168（%） | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 |
| PETS（%） | 0.3 | 0.3 | 0.3 | 0.3 | 0.3 |
| Glass fiber (%) | 30 | 30 | 30 | 30 | 30 |
| Notched impact Strength (KJ/m)2) | 8 | 9 | 11 | 12 | 11 |
| Tensile strength (Mpa) | 115 | 118 | 125 | 123 | 122 |
| Elongation at Break (%) | 2.7 | 2.6 | 3.0 | 3.3 | 3.4 |
| Flexural strength (Mpa) | 179 | 181 | 191 | 190 | 187 |
| Flexural modulus (Kpa) | 9.0 | 10.0 | 10.6 | 10.1 | 11 |
| Heat distortion temperature (1.8 MPa) (. degree.C.) | 179 | 183 | 186 | 185 | 184 |
| Warping degree (mm) | 1.3 | 1.2 | 0.4 | 0.6 | 0.7 |
| Specific gravity (g/cm)) | 1.410 | 1.418 | 1.4123 | 1.422 | 1.420 |
Table 4: influence of different nano kaolin addition amounts on the reinforced PBT composite material.
| Name of Material | Example 15 | Example 16 | Practice ofExample 17 | Example 18 | Example 19 |
| PBT(%) | 42 | 41 | 40 | 39 | 38 |
| KT-2(%) | 3 | 3 | 3 | 3 | 3 |
| ABS（%） | 13 | 13 | 13 | 13 | 13 |
| Magnesium salt whisker (%) | 6 | 6 | 6 | 6 | 6 |
| AX8900 | 3 | 3 | 3 | 3 | 3 |
| Nano kaolin | 2 | 3 | 4 | 5 | 6 |
| 1076（%） | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 |
| 168（%） | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 |
| PETS（%） | 0.3 | 0.3 | 0.3 | 0.3 | 0.3 |
| Glass fiber (%) | 30 | 30 | 30 | 30 | 30 |
| Notched impact Strength (KJ/m)2) | 8 | 9 | 11 | 12 | 11 |
| Tensile strength (Mpa) | 115 | 118 | 121 | 124 | 122 |
| Elongation at Break (%) | 2.7 | 2.6 | 3.0 | 3.3 | 3.4 |
| Flexural strength (Mpa) | 179 | 181 | 189 | 191 | 187 |
| Flexural modulus (Kpa) | 9.0 | 10.0 | 10.6 | 10.1 | 11 |
| Heat distortion temperature (1.8 MPa) (. degree.C.) | 179 | 183 | 185 | 187 | 184 |
| Warping degree (mm) | 1.3 | 1.2 | 0.6 | 0.3 | 0.5 |
| Specific gravity (g/cm)) | 1.410 | 1.418 | 1.423 | 1.424 | 1.420 |
The data show that the magnesium salt whisker and the nano kaolin are simultaneously used in the glass fiber reinforced PBT composite material, so that a good improvement effect can be achieved on the warping problem of a reinforced PBT product, and on the premise that the addition amount of ABS is 13 parts, and the addition amounts of KT-2 and AX8900 are 3 parts, when the addition amount of the magnesium salt whisker is 6 parts and the addition amount of the nano kaolin is 5 parts, the warping problem of the material is most ideal to solve, and meanwhile, other performances of the material are less influenced.
Claims (10)
1. The low-warpage glass fiber reinforced polybutylene terephthalate material is characterized by comprising the following raw materials in parts by weight: 35-45% of PBT material, 10-15% of ABS material, 2-5% of KT-2 material, 4-8% of magnesium salt whisker material, 1-5% of AX8900 resin material, 2-6% of nano kaolin material, 25-35% of glass fiber material, 0.1-0.3% of antioxidant 1, 0.1-0.3% of antioxidant 2, 0.2-0.5% of lubricant material and 0.1-0.2% of coupling agent material; wherein the KT-2 is a maleic anhydride grafted ABS material and is used as a compatilizer.
2. A low warpage glass fiber reinforced polybutylene terephthalate material as claimed in claim 1, wherein said AX8900 resin is an ethylene-methyl acrylate-glycidyl methacrylate random terpolymer.
3. The low-warpage glass fiber reinforced polybutylene terephthalate material as claimed in claim 1, wherein the nano kaolin has a mesh number of 2000 or more, and is pretreated by using a silane coupling agent.
4. The polybutylene terephthalate material with low warpage as claimed in claim 1, wherein the polybutylene terephthalate material has a relative density of 1.31-1.35, a melting point of 220-230 ℃, and a melt viscosity of 0.6-0.9.
5. The low warpage glass fiber reinforced polybutylene terephthalate material of claim 1, wherein the glass fiber diameter is 6-17 microns.
6. The low-warpage glass fiber reinforced polybutylene terephthalate material as claimed in claim 1, wherein the lubricant is pentaerythritol stearate (PETS).
7. The low-warpage glass fiber reinforced polybutylene terephthalate material as claimed in claim 1, wherein the antioxidant is one of beta-octadecyl propionate or pentaerythritol ester.
8. The polybutylene terephthalate material with low warpage as claimed in claim 1, wherein the coupling agent is one of γ -propyltrimethoxysilane, vinyltriethoxysilane, vinyltrimethoxysilane, vinyltrisilane, γ -aminopropyltriethoxysilane, and N- β - γ -aminopropylmethyldimethoxysilane.
9. The low-warpage glass fiber reinforced polybutylene terephthalate material as claimed in claim 1, wherein the magnesium salt whiskers are single crystal fiber white powder with a relative density of 2.2-2.4g/cm3, a diameter of <1.0 micron and an average length of 10-80 microns.
10. A preparation method of a low-warpage glass fiber reinforced polybutylene terephthalate material specifically comprises the following steps:
step 1, a preparation process of a toughening compatilizer KT-2 comprises the following steps: putting 100 parts of acrylonitrile-butadiene-styrene terpolymer, 1-2 parts of maleic anhydride, 0.05-0.1 part of initiator, 0.2-0.5 part of heat stabilizer and 0.2-0.5 part of lubricant into a high-speed mixer, uniformly mixing for 5min, and extruding by using a double screw to prepare KT-2; the extrusion temperature was set as: the first zone is 70-100 ℃, the second zone is 180-190 ℃, the third zone is 185-195 ℃, the fourth zone is 185-195 ℃, the fifth zone is 185-195 ℃, the sixth zone is 180-190 ℃, the seventh zone is 180-190 ℃, the eighth zone is 180-190 ℃, the ninth zone is 165-175 ℃, and the head is 200-230 ℃; the residence time of each zone is 6-8 seconds; the number of revolutions of the main machine is as follows: 450-550 r/min; the initiator is dicumyl peroxide (DCP); the heat stabilizer is zinc stearate; 2, carrying out underwater granulation, dehydrator and vibrating screen on the material extruded by the extruder head to obtain particles;
drying to obtain maleic anhydride grafted ABS toughening compatilizer; wherein: controlling the grain size of the cut grains to be 3-4 mm; the water content of the particles after dehydration treatment by the dehydrator is controlled below 0.3 percent; setting the drying temperature at 50-60 ℃, setting the drying time at 0.5h, step 3, weighing polybutylene terephthalate, magnesium salt whisker, a compatilizer KT-2, ABS, AX8900 flexibilizer, nano kaolin and an antioxidant according to the weight percentage, uniformly mixing in a high-speed mixer, setting the mixing time at 5min,
step 4, treating the glass fiber by a silane coupling agent,
and 5, placing the uniformly mixed raw materials except the glass fiber into a main feeding port of a double-screw extruder, adding the glass fiber obtained in the step 4 from a side feeding port, and performing melt extrusion and granulation by the extruder, wherein the extrusion temperature is set as follows: the first zone is 70-100 ℃, the second zone is 220-240 ℃, the third zone is 230-250 ℃, the fourth zone is 230-250 ℃, the fifth zone is 230-250 ℃, the sixth zone is 220-240 ℃, the seventh zone is 220-240 ℃, the eighth zone is 240-270 ℃ and the head is 210-230 ℃; the residence time of each zone is 6-8 seconds; the number of revolutions of the main machine is as follows: 450-550 r/min.
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Application publication date: 20210119 |