CN114249972A - PBT/PTT composite material and preparation method thereof - Google Patents
PBT/PTT composite material and preparation method thereof Download PDFInfo
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- CN114249972A CN114249972A CN202210061351.8A CN202210061351A CN114249972A CN 114249972 A CN114249972 A CN 114249972A CN 202210061351 A CN202210061351 A CN 202210061351A CN 114249972 A CN114249972 A CN 114249972A
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- pbt
- parts
- composite material
- ptt
- antioxidant
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- 239000002131 composite material Substances 0.000 title claims abstract description 33
- 238000002360 preparation method Methods 0.000 title claims abstract description 9
- 239000004594 Masterbatch (MB) Substances 0.000 claims abstract description 17
- 239000003365 glass fiber Substances 0.000 claims abstract description 17
- 239000012745 toughening agent Substances 0.000 claims abstract description 17
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 15
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 15
- 239000000314 lubricant Substances 0.000 claims abstract description 14
- 239000000203 mixture Substances 0.000 claims description 13
- 238000002156 mixing Methods 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 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
- 238000002844 melting Methods 0.000 claims description 3
- 230000008018 melting Effects 0.000 claims description 3
- 238000005303 weighing Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 claims 2
- 239000000463 material Substances 0.000 abstract description 7
- 229920001707 polybutylene terephthalate Polymers 0.000 description 34
- 229920002215 polytrimethylene terephthalate Polymers 0.000 description 27
- 238000005452 bending Methods 0.000 description 4
- 239000011347 resin Substances 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- -1 Polybutylene terephthalate Polymers 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000007547 defect 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
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L67/00—Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
- C08L67/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
Abstract
The invention discloses a PBT/PTT composite material and a preparation method thereof, wherein the PBT/PTT composite material comprises the following components in parts by weight: PBT: 45-80 parts, PTT: 5-30 parts of an antioxidant: 0.2-0.4 part of lubricant: 0.1-0.3 part of toughening agent master batch: 0-5 parts of glass fiber: 20-30 parts. According to the preparation method, the PBT and the PTT are blended to prepare the composite material, so that the toughness of the material is improved, and the cost is reduced; in addition, the toughening agent master batch and the glass fiber are added into the formula, so that the strength of the material is further improved.
Description
Technical Field
The invention relates to the technical field of high polymer material processing, in particular to a PBT/PTT composite material and a preparation method thereof.
Background
Polybutylene terephthalate (PBT) is a high-performance crystalline engineering plastic, has excellent electrical properties, wear resistance, heat resistance, chemical resistance and good processability, and is widely applied to the fields of electronic appliances, household appliances, machinery, automobile industry and the like at present. However, the resin of the common reinforced PBT has notch sensitivity and poor toughness, and cannot meet the requirements of people. The polytrimethylene terephthalate (PTT) has good mechanical property, good elasticity, wear resistance and insulativity, low cost and price advantage.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a PBT/PTT composite material.
The invention discloses a PBT/PTT composite material, which comprises the following components in parts by weight:
PBT: 45 to 80 portions of
PTT: 5 to 30 parts of
Antioxidant: 0.2 to 0.4 portion
Lubricant: 0.1 to 0.3 portion
Toughening agent master batch: 0 to 5 parts of
Glass fiber: 20-30 parts.
According to one embodiment of the invention, the PBT/PTT composite material comprises the following components in parts by weight:
PBT: 50 to 70 parts of
PTT: 10 to 20 portions of
Antioxidant: 0.3 part
Lubricant: 0.2 part
Toughening agent master batch: 0 to 3 parts of
Glass fiber: 20-30 parts.
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.
According to an embodiment of the invention, the toughening agent master batch is POE-g-GMA or EMA-g-GMA.
A preparation method of a PBT/PTT composite material comprises the following steps:
(1) weighing PBT, PTT, an antioxidant, a lubricant, a toughening agent master batch and glass fiber, and pouring the mixture 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 present invention, in the step (2), the screw extruder is a twin-screw extruder.
According to an embodiment of the present invention, in the step (2), the rotation speed of the feeder of the screw extruder is 15 to 20r/min, and the rotation speed of the main machine is 600 to 750 r/min.
According to an embodiment of the invention, in the step (2), the temperature of the first zone of the screw extruder is 180-.
The beneficial effect of this application lies in: the PBT and the PTT are blended to prepare the composite material, so that the toughness of the material is improved, and the cost is reduced; in addition, the toughening agent master batch and the glass fiber are added into the formula, so that the strength of the material is further improved.
Detailed Description
To further understand the contents, features and effects of the present invention, the following examples are illustrated:
the PBT/PTT composite material in the embodiment comprises the following components in parts by weight: PBT: 45-80 parts, PTT: 5-30 parts of an antioxidant: 0.2-0.4 part of lubricant: 0.1-0.3 part of toughening agent master batch: 0-5 parts of glass fiber: 20-30 parts.
Preferably, the PBT/PTT composite material comprises the following components in parts by weight: PBT: 50-70 parts of PTT: 10-20 parts of an antioxidant: 0.3 part, lubricant: 0.2 part of toughening agent master batch: 0-3 parts of glass fiber: 20-30 parts.
Preferably, the antioxidant is the antioxidant 1076 or the antioxidant 168, the lubricant is PETS, and the prepared PBT/PTT composite material has good demolding and flowing properties by adding the PETS into the formula. The toughening agent master batch is POE-g-GMA or EMA-g-GMA, and the toughness, impact strength, bending resistance and the like of the PBT resin are improved by adding the toughening agent master batch into the formula. The physical and mechanical properties of the PBT resin are improved by adding glass fiber into the formula.
A preparation method of a PBT/PTT composite material comprises the following steps:
(1) weighing PBT, PTT, an antioxidant, a lubricant, a toughening agent master batch and glass fiber, and pouring the mixture 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 is 600-750 r/min, the temperature of the first zone of the screw extruder is 180-.
Example 1
60 parts of PBT, 10 parts of PPT, 0.3 part of antioxidant, 0.2 part of PETS, 3 parts of POE-g-GMA and 25 parts of glass fiber are weighed and poured into a mixer to be fully mixed to obtain a mixture, the mixture is melted, blended, extruded and granulated by a double-screw extruder, the rotating speed of a feeding machine of the double-screw extruder is 17r/min, the rotating speed of a host 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 ℃. Thus obtaining the PBT/PTT composite material A1.
Example 2
50 parts of PBT, 20 parts of PPT, 0.3 part of antioxidant, 0.2 part of PETS, 3 parts of POE-g-GMA 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. Thus obtaining the PBT/PTT composite material A2.
Comparative example 1
70 parts of PBT, 0.3 part of antioxidant 1076, 0.2 part of lubricant, 3 parts of POE-g-GMA 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. A PBT composite material D1 was obtained.
The performances of the PBT/PTT composite materials A1 and A2 and the PBT composite material D1 are detected, and the test results are shown in the following table:
the experimental results in the table show that the materials A1, A2 and D1 all have better impact strength, tensile strength, elongation, bending strength and bending modulus, and the PBT/PTT composite material A2 added with PTT has better impact strength and bending modulus and simultaneously has lower cost than the PBT composite material A1, namely the composite material prepared after adding PTT has improved toughness and reduced cost.
To sum up: according to the PBT/PTT composite material, the PBT and the PTT are blended to prepare the composite material, so that the toughness of the material is improved, and the cost is reduced; in addition, the toughening agent master batch and the glass fiber are added into the formula, so that the strength of the material is further improved.
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 (9)
1. The PBT/PTT composite material is characterized by comprising the following components in parts by weight:
PBT: 45 to 80 portions of
PTT: 5 to 30 parts of
Antioxidant: 0.2 to 0.4 portion
Lubricant: 0.1 to 0.3 portion
Toughening agent master batch: 0 to 5 parts of
Glass fiber: 20-30 parts.
2. The PBT/PTT composite material according to claim 1, which comprises the following components in parts by weight:
PBT: 50 to 70 parts of
PTT: 10 to 20 portions of
Antioxidant: 0.3 part
Lubricant: 0.2 part
Toughening agent master batch: 0 to 3 parts of
Glass fiber: 20-30 parts.
3. The PBT/PTT composite material according to claim 2, wherein the antioxidant is an antioxidant 1076 or an antioxidant 168.
4. The PBT/PTT composite material according to claim 2, wherein the lubricant is PETS.
5. The PBT/PTT composite material according to claim 2, wherein the toughening agent masterbatch is POE-g-GMA or EMA-g-GMA.
6. The preparation method of the PBT/PTT composite material according to the claims 1-5, characterized by comprising the following steps:
(1) weighing PBT, PTT, an antioxidant, a lubricant, a toughening agent master batch and glass fiber, and pouring the mixture 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.
7. The method for preparing the PBT/PTT composite material according to claim 6, wherein in the step (2), the screw extruder is a twin-screw extruder.
8. The preparation method of the PBT/PTT composite material according to claim 6, wherein in the step (2), the rotating speed of a feeding machine of the screw extruder is 15-20 r/min, and the rotating speed of a main machine is 600-750 r/min.
9. The method as claimed in claim 6, wherein in the step (2), the temperature of the first zone of the screw extruder is 200-.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210061351.8A CN114249972A (en) | 2022-01-19 | 2022-01-19 | PBT/PTT composite material and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210061351.8A CN114249972A (en) | 2022-01-19 | 2022-01-19 | PBT/PTT composite material and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114249972A true CN114249972A (en) | 2022-03-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210061351.8A Pending CN114249972A (en) | 2022-01-19 | 2022-01-19 | PBT/PTT composite material and preparation method thereof |
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| Country | Link |
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| CN (1) | CN114249972A (en) |
Citations (3)
| 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 |
| CN102061070A (en) * | 2010-12-29 | 2011-05-18 | 上海日之升新技术发展有限公司 | Flame-retardant reinforced polybutylece terephthalate (PBT)/ polytrimethylene terephthalate (PTT) composite material with high glowing filament temperature and preparation method thereof |
| US20210139695A1 (en) * | 2017-06-20 | 2021-05-13 | Forda Energy Uk Limited | Yaw Brake Lining and Method of Producing the Same |
-
2022
- 2022-01-19 CN CN202210061351.8A patent/CN114249972A/en active Pending
Patent Citations (3)
| 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 |
| CN102061070A (en) * | 2010-12-29 | 2011-05-18 | 上海日之升新技术发展有限公司 | Flame-retardant reinforced polybutylece terephthalate (PBT)/ polytrimethylene terephthalate (PTT) composite material with high glowing filament temperature and preparation method thereof |
| US20210139695A1 (en) * | 2017-06-20 | 2021-05-13 | Forda Energy Uk Limited | Yaw Brake Lining and Method of Producing the Same |
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Application publication date: 20220329 |