CN114350122A - High-strength high-fluidity PBT material and preparation method thereof - Google Patents
High-strength high-fluidity PBT material and preparation method thereof Download PDFInfo
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- CN114350122A CN114350122A CN202210060091.2A CN202210060091A CN114350122A CN 114350122 A CN114350122 A CN 114350122A CN 202210060091 A CN202210060091 A CN 202210060091A CN 114350122 A CN114350122 A CN 114350122A
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- 239000000463 material Substances 0.000 title claims abstract description 45
- 238000002360 preparation method Methods 0.000 title abstract description 6
- 239000012745 toughening agent Substances 0.000 claims abstract description 29
- 239000003365 glass fiber Substances 0.000 claims abstract description 14
- 239000000314 lubricant Substances 0.000 claims abstract description 14
- QCDFBFJGMNKBDO-UHFFFAOYSA-N Clioquinol Chemical compound C1=CN=C2C(O)=C(I)C=C(Cl)C2=C1 QCDFBFJGMNKBDO-UHFFFAOYSA-N 0.000 claims abstract description 13
- YZPOQCQXOSEMAZ-UHFFFAOYSA-N pbt2 Chemical compound ClC1=CC(Cl)=C(O)C2=NC(CN(C)C)=CC=C21 YZPOQCQXOSEMAZ-UHFFFAOYSA-N 0.000 claims abstract description 13
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 10
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 10
- 239000000203 mixture Substances 0.000 claims description 11
- 239000012764 mineral filler Substances 0.000 claims description 10
- 238000002156 mixing Methods 0.000 claims description 8
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 6
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 claims description 6
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 claims description 6
- SSDSCDGVMJFTEQ-UHFFFAOYSA-N octadecyl 3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoate Chemical group CCCCCCCCCCCCCCCCCCOC(=O)CCC1=CC(C(C)(C)C)=C(O)C(C(C)(C)C)=C1 SSDSCDGVMJFTEQ-UHFFFAOYSA-N 0.000 claims description 6
- 239000004594 Masterbatch (MB) Substances 0.000 claims description 5
- 239000002131 composite material Substances 0.000 claims description 5
- 238000002844 melting Methods 0.000 claims description 4
- 230000008018 melting Effects 0.000 claims description 4
- 238000005303 weighing Methods 0.000 claims description 4
- 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 claims description 3
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 3
- 239000013078 crystal Substances 0.000 claims description 3
- 239000002904 solvent Substances 0.000 claims description 2
- 238000000034 method Methods 0.000 claims 3
- GINJFDRNADDBIN-FXQIFTODSA-N bilanafos Chemical compound OC(=O)[C@H](C)NC(=O)[C@H](C)NC(=O)[C@@H](N)CCP(C)(O)=O GINJFDRNADDBIN-FXQIFTODSA-N 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 10
- 229920001707 polybutylene terephthalate Polymers 0.000 description 40
- 229920002215 polytrimethylene terephthalate Polymers 0.000 description 8
- 239000011347 resin Substances 0.000 description 4
- 229920005989 resin Polymers 0.000 description 4
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- -1 Polybutylene terephthalate Polymers 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 239000003973 paint Substances 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229920006351 engineering plastic Polymers 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
Abstract
The invention discloses a high-strength high-fluidity PBT material and a preparation method thereof, wherein the high-strength high-fluidity PBT material comprises the following components in parts by weight: PBT-1: 20-35 parts of PBT-2: 20-25 parts of PTT: 5-10 parts of toughening agent master batch-1: 10-20 parts of antioxidant: 0.4-0.6 part of lubricant: 0.3-0.5 parts of glass fiber: 25-30 parts. According to the production method, the toughening agent master batch-1 and the glass fiber are added into the PBT to improve the strength of the PBT material, and meanwhile, the lubricant is added to improve the fluidity of the PBT material, so that the production method is suitable for production of workpieces with large volume and complex structure, the production forming is fast, and the workpieces are not easy to crack under high pressure.
Description
Technical Field
The invention relates to the technical field of high polymer material processing, in particular to a high-strength high-fluidity PBT material and a preparation method thereof.
Background
At present, the market has higher requirements on electric parts, particularly parts with large parts and complex structures, and the parts are required to have high fluidity and high strength, and the parts are required to be quickly molded and have good fluidity in the production process. Polybutylene terephthalate (PBT) is one of five common thermoplastic engineering plastics in the world, has excellent electrical properties, wear resistance, heat resistance, chemical resistance and good processability, and is widely applied to the industries of electronic appliances, household appliances, machinery, automobile industry and the like at present. However, the PBT resin also has the defects of poor fluidity, notch sensitivity and the like, and further modification of the PBT material is needed to improve the fluidity and the strength of the PBT material and meet the market demand.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a high-strength high-fluidity PBT material.
The invention discloses a high-strength high-fluidity PBT material which comprises the following components in parts by weight:
PBT-1: 20-35 parts of
PBT-2: 20-25 parts of
PTT: 5-10 parts of
Toughening agent master batch-1: 10-20 parts of
Antioxidant: 0.4 to 0.6 portion
Lubricant: 0.3 to 0.5 portion
Glass fiber: 25-30 parts.
According to one embodiment of the invention, the paint further comprises the following components in parts by weight:
toughening agent master batch-2: 0-3 parts of a solvent;
the toughening agent master batch-2 is POE-g-GMA or EMA-g-GMA.
According to one embodiment of the invention, the paint further comprises the following components in parts by weight:
mineral filler: 0-5 parts;
the mineral filler is one or more of talcum powder, crystal whisker, barium sulfate and calcium carbonate.
According to one embodiment of the invention, PBT-1 has an intrinsic viscosity of 1.0 dL/g.
According to one embodiment of the invention, the PBT-2 has an intrinsic viscosity of 0.7 to 0.8 dL/g.
According to one embodiment of the invention, the toughening agent master batch-1 is a PE/POE composite toughening agent master batch.
According to one embodiment of the invention, the antioxidant is antioxidant 1076 or antioxidant 168.
According to one embodiment of the invention, the lubricant is PETS.
A preparation method of a high-strength high-fluidity PBT material comprises the following steps:
(1) weighing PBT-1, PBT-2, PTT, a toughening agent master batch-1, a toughening agent master batch-2, an antioxidant, a lubricant, a mineral filler and glass fiber, and pouring into a mixer for fully mixing to obtain a mixture for later use;
(2) melting, blending, extruding and granulating the mixture by using a screw extruder.
According to an embodiment of the invention, in the step (2), the screw extruder is a double screw extruder, the rotation speed of the feeding machine of the screw extruder is 15-20 r/min, the rotation speed of the host machine is 500-700 r/min, the temperature of the first zone of the screw extruder is 180-.
The beneficial effect of this application lies in: the strength of the PBT material is improved by adding the toughening agent master batch-1 and the glass fiber into the PBT, and meanwhile, the fluidity of the PBT material is improved by adding the lubricant, so that the PBT material is suitable for production of workpieces with large volume and complex structure, and is fast in production and forming, and the workpieces are not easy to crack under high pressure.
Detailed Description
To further understand the contents, features and effects of the present invention, the following examples are illustrated:
the high-strength high-fluidity PBT material in the embodiment comprises the following components in parts by weight: PBT-1: 20-35 parts of PBT-2: 20-25 parts of PTT (polytrimethylene terephthalate): 5-10 parts of toughening agent master batch-1: 10-20 parts of antioxidant: 0.4-0.6 part of lubricant: 0.3-0.5 parts of glass fiber: 25-30 parts.
Preferably, the high-strength high-flow PBT material also comprises the following components in parts by weight: toughening agent master batch-2: 0-3 parts of mineral filler: 0-5 parts.
Preferably, the PBT-1 has an intrinsic viscosity of 1.0dL/g, and the PBT-2 has an intrinsic viscosity of 0.7-0.8dL/g, and the viscosity of the high-strength high-flow PBT material is reduced and the fluidity of the high-strength high-flow PBT material is increased by using two PBT resins with different intrinsic viscosities in the formula. The toughening agent master batch-1 is PE/POE composite toughening agent master batch, the toughening agent master batch-2 is POE-g-GMA or EMA-g-GMA, and the toughening agent master batch-1 is added into the formula to improve the toughness, the impact strength, the flexing resistance and the like of the PBT resin. The antioxidant is antioxidant 1076 or antioxidant 168, the lubricant is PETS, and the high-strength high-fluidity PBT material prepared by adding PETS into the formula has good demolding and flowing properties. The mineral filler is one or more of talcum powder, crystal whisker, barium sulfate and calcium carbonate, and the physical and mechanical properties of the PBT resin are improved by adding the mineral filler into the formula.
A preparation method of a high-strength high-fluidity PBT material comprises the following steps:
(1) weighing PBT-1, PBT-2, PTT, a toughening agent master batch-1, a toughening agent master batch-2, an antioxidant, a lubricant, a mineral filler and glass fiber, and pouring into a mixer for fully mixing to obtain a mixture for later use;
(2) melting, blending, extruding and granulating the mixture by using a screw extruder.
Preferably, in the step (2), the screw extruder is a double-screw extruder, the rotation speed of the feeding device of the screw extruder is 15-20 r/min, the rotation speed of the host machine is 500-700 r/min, the temperature of the first zone of the screw extruder is 180-.
The strength of the PBT material is improved by adding the toughening agent master batch-1 and the glass fiber into the PBT, and meanwhile, the fluidity of the PBT material is improved by adding the lubricant.
Example 1
Weighing 20 parts of PBT-1, 25 parts of PBT-2, 10 parts of PTT, 20 parts of PE/POE composite toughening agent master batch, 0.4 part of antioxidant 1076, 0.3 part of PETS, 5 parts of talcum powder and 25 parts of glass fiber, pouring the mixture into a mixer, fully mixing to obtain a mixture, melting, blending, extruding and granulating the mixture by using a double-screw extruder, wherein the rotating speed of a feeding machine of the double-screw extruder is 17r/min, the rotating speed of a main machine is 600r/min, the temperature of a first zone of a screw extruder of the screw extruder is 190 ℃, the temperature of a second zone is 210 ℃, the temperature of a third zone is 230 ℃, the temperature of a fourth zone is 230 ℃, the temperature of a fifth zone is 230 ℃, the temperature of a sixth zone is 240 ℃, the temperature of a seventh zone is 250 ℃, the temperature of an eighth zone is 250 ℃ and the temperature of a machine head is 250 ℃. The high-strength high-flow PBT material A1 is prepared.
Example 2
28 parts of PBT-1, 25 parts of PBT-2, 5 parts of PTT, 10 parts of PE/POE composite toughening agent master batch, 1.5 parts of POE-g-GMA, 0.4 part of antioxidant 1076, 0.3 part of PETS, 5 parts of talcum powder and 25 parts of glass fiber are weighed and poured into a mixer to be fully mixed to obtain a mixture, and other conditions are the same as those in the example 1. The high-strength high-flow PBT material A2 is prepared.
Example 3
32 parts of PBT-1, 25 parts of PBT-2, 5 parts of PTT, 3 parts of POE-g-GMA, 0.4 part of antioxidant 1076, 0.3 part of PETS, 5 parts of talcum powder and 25 parts of glass fiber are weighed and poured into a mixer to be fully mixed to obtain a mixture, and other conditions are the same as those in example 1. The high-strength high-flow PBT material A3 is prepared.
The performance of the high-strength high-flow PBT material A1-A3 is detected, and the test results are shown in the following table:
the experimental results in the table above show that the high-strength high-flow PBT material A1-A3 has good impact strength, tensile strength, elongation, bending strength and bending modulus, which indicates that the high-strength high-flow PBT material in the application has good impact strength and compressive strength, so that the product made of the high-strength high-flow PBT material is not easy to crack and deform under high pressure and has good dimensional stability. Meanwhile, the high-strength high-fluidity PBT material also has higher melt index, namely better fluidity, so that the high-strength high-fluidity PBT material is fast in production and molding in subsequent processing.
To sum up: according to the high-strength high-fluidity PBT material, the toughening agent master batch-1 and the glass fiber are added into the PBT to improve the strength of the PBT material, and meanwhile, the lubricant is added to improve the fluidity of the PBT material, so that the high-strength high-fluidity PBT material is suitable for production of workpieces with large volumes and complex structures, the production and molding are fast, and the workpieces are not easy to crack under high pressure.
The above is merely an embodiment of the present invention, and is not intended to limit the present invention. Various modifications and alterations to this invention will become apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.
Claims (10)
1. The high-strength high-fluidity PBT material is characterized by comprising the following components in parts by weight:
PBT-1: 20-35 parts of
PBT-2: 20-25 parts of
PTT: 5-10 parts of
Toughening agent master batch-1: 10-20 parts of
Antioxidant: 0.4 to 0.6 portion
Lubricant: 0.3 to 0.5 portion
Glass fiber: 25-30 parts.
2. The high-strength high-flow PBT material according to claim 1, which is characterized by further comprising the following components in parts by weight:
toughening agent master batch-2: 0-3 parts of a solvent;
the toughening agent master batch-2 is POE-g-GMA or EMA-g-GMA.
3. The high-strength high-flow PBT material according to claim 2, which is characterized by further comprising the following components in parts by weight:
mineral filler: 0-5 parts;
the mineral filler is one or more of talcum powder, crystal whisker, barium sulfate and calcium carbonate.
4. A high strength high flow PBT material according to claim 3 wherein the PBT-1 has an intrinsic viscosity of 1.0 dL/g.
5. A high strength high flow PBT material according to claim 4, wherein said PBT-2 has an intrinsic viscosity of 0.7-0.8 dL/g.
6. The high-strength high-fluidity PBT material according to claim 5, wherein the toughening agent master batch-1 is a PE/POE composite toughening agent master batch.
7. The high-strength high-flow PBT material of claim 6, wherein the antioxidant is antioxidant 1076 or antioxidant 168.
8. A high strength, high flow PBT material according to claim 7, wherein said lubricant is PETS.
9. The method for preparing the high-strength high-flow PBT material according to claim 8, wherein the method comprises the following steps:
(1) weighing PBT-1, PBT-2, PTT, a toughening agent master batch-1, a toughening agent master batch-2, an antioxidant, a lubricant, a mineral filler and glass fiber, and pouring into a mixer for fully mixing to obtain a mixture for later use;
(2) melting, blending, extruding and granulating the mixture by using a screw extruder.
10. The method as claimed in claim 9, wherein in the step (2), the screw extruder is a twin-screw extruder, the rotation speed of the feeding machine of the screw extruder is 15-20 r/min, the rotation speed of the host machine is 500-700 r/min, the temperature of the first zone of the screw extruder is 180-.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210060091.2A CN114350122A (en) | 2022-01-19 | 2022-01-19 | High-strength high-fluidity PBT material and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210060091.2A CN114350122A (en) | 2022-01-19 | 2022-01-19 | High-strength high-fluidity PBT material and preparation method thereof |
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| CN114350122A true CN114350122A (en) | 2022-04-15 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101225220A (en) * | 2007-12-25 | 2008-07-23 | 南通市东方实业有限公司 | Flame-retardant reinforced polybutylene terephthalate compound and production method thereof |
| CN101440201A (en) * | 2007-11-19 | 2009-05-27 | 上海日之升新技术发展有限公司 | Flame-retardant reinforced polyytrimethylene terephthalate andpolybutylene terephthalate alloy and preparation thereof |
| CN102532824A (en) * | 2010-12-28 | 2012-07-04 | 合肥杰事杰新材料股份有限公司 | Flame-retardant reinforced warping-resistance PBT/PTT (polybutylene terephthalate/polytrimethylene terephthalate) alloy material and preparation method thereof |
| CN111100432A (en) * | 2019-12-12 | 2020-05-05 | 会通新材料股份有限公司 | PBT/PTT composition and preparation method thereof |
-
2022
- 2022-01-19 CN CN202210060091.2A patent/CN114350122A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101440201A (en) * | 2007-11-19 | 2009-05-27 | 上海日之升新技术发展有限公司 | Flame-retardant reinforced polyytrimethylene terephthalate andpolybutylene terephthalate alloy and preparation thereof |
| CN101225220A (en) * | 2007-12-25 | 2008-07-23 | 南通市东方实业有限公司 | Flame-retardant reinforced polybutylene terephthalate compound and production method thereof |
| CN102532824A (en) * | 2010-12-28 | 2012-07-04 | 合肥杰事杰新材料股份有限公司 | Flame-retardant reinforced warping-resistance PBT/PTT (polybutylene terephthalate/polytrimethylene terephthalate) alloy material and preparation method thereof |
| CN111100432A (en) * | 2019-12-12 | 2020-05-05 | 会通新材料股份有限公司 | PBT/PTT composition and preparation method thereof |
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Application publication date: 20220415 |