CN111040414A - SEBS (styrene-ethylene-butadiene-styrene) toughened PPO/PA6 composite material with low dielectric constant and preparation method thereof - Google Patents
SEBS (styrene-ethylene-butadiene-styrene) toughened PPO/PA6 composite material with low dielectric constant and preparation method thereof Download PDFInfo
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- CN111040414A CN111040414A CN201911417551.7A CN201911417551A CN111040414A CN 111040414 A CN111040414 A CN 111040414A CN 201911417551 A CN201911417551 A CN 201911417551A CN 111040414 A CN111040414 A CN 111040414A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L71/00—Compositions of polyethers obtained by reactions forming an ether link in the main chain; Compositions of derivatives of such polymers
- C08L71/08—Polyethers derived from hydroxy compounds or from their metallic derivatives
- C08L71/10—Polyethers derived from hydroxy compounds or from their metallic derivatives from phenols
- C08L71/12—Polyphenylene oxides
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- 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
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
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- 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
- C08L2205/08—Polymer mixtures characterised by other features containing additives to improve the compatibility between two polymers
Abstract
The invention discloses an SEBS (styrene-ethylene-butadiene-styrene) toughened PPO/PA6 composite material with a low dielectric constant and a preparation method thereof, wherein master batches comprise the following raw materials in parts by weight: PPO-731: 40-46 parts of nylon (PA6) YH 400: 24-36 parts of a toughening agent SEBS resin: 10-15 parts of fumaric anhydride grafting agent: 10-15, antioxidant: 0.5-1 part of flame retardant: 2-4 parts of anti-aging agent: 0.5-1, lubricant: 0.5-1 part of colorant: 0.5 part. The invention can make the symmetry of the group high, the dielectric constant reduced, and the impact strength of the material high.
Description
Technical Field
The invention relates to the technical field of materials, in particular to an SEBS (styrene-ethylene-butadiene-styrene) toughened PPO/PA6 composite material with a low dielectric constant, and a preparation method of the SEBS toughened PPO/PA6 composite material with the low dielectric constant.
Background
5G has the characteristics of high speed, low time delay and network architecture of everything interconnection, the application requirements of plastics with single variety and property are difficult to realize, and the modified plastics are one of the essential basic raw materials for realizing the 5G technology. The 5G communication mode has higher requirements on the dielectric property of the modified plastic, the dielectric constant has great influence on the signal transmission speed, the signal delay, the signal loss and the like of 5G communication millimeter waves, and the reduction of the dielectric constant of the modified plastic is beneficial to improving the signal transmission speed of the intelligent terminal, reducing the signal delay and reducing the signal loss.
Polyphenylene Oxide (PPO) is a notch-sensitive thermoplastic resin, has good mechanical, flame retardant, heat resistance, electrical insulation, chemical stability and other properties, but has limited application due to too high melt viscosity and poor processability. The incorporation of other resins and auxiliaries into polyphenylene ethers is a common means of modifying them. PPO and polyamide 6(PA6) can be completely compatible, the processing performance of PPO can be effectively improved by mixing PA6, the application field of PPO is expanded, but the mechanical property of PPO/PA6 alloy is poor. In order to complement the performances of polyamide 6(PA6) and polyphenylene oxide (PPO), how to obtain a PPO/PA6 alloy with excellent comprehensive performances is a problem to be solved urgently.
Disclosure of Invention
The invention aims to overcome the defects and provide the SEBS toughened PPO/PA composite material with high group symmetry, reduced dielectric constant, high impact strength and low dielectric constant.
The invention also aims to provide a preparation method of the SEBS toughened PPO/PA composite material with the low dielectric constant.
The SEBS toughened PPO/PA6 composite material disclosed by the invention has the following master batch comprising the following raw materials in parts by weight: PPO-731: 40-46 parts of nylon (PA6) YH 400: 24-36 parts of a toughening agent SEBS resin: 10-15 parts of fumaric anhydride grafting agent: 10-15, antioxidant: 0.5-1 part of flame retardant: 2-4 parts of anti-aging agent: 0.5-1, lubricant: 0.5-1 part of colorant: 0.5 part.
The SEBS toughened PPO/PA6 composite material comprises: the antioxidant is one of antioxidant 1010 and antioxidant 168 or a compound of antioxidant 1010 and antioxidant 168 with the mass fraction ratio of 1: 1.
The SEBS toughened PPO/PA6 composite material is characterized in that the antioxidant 1010 is pentaerythritol tetrakis [ β - (3, 5-di-tert-butyl-4-hydroxyphenyl) propionate ], and the thermal decomposition temperature is more than or equal to 350 ℃.
The SEBS toughened PPO/PA6 composite material comprises: the flame retardant is a flame retardant 6003, the aging inhibitor is a UV aging inhibitor RQT-X-1, the lubricant is a lubricant TS0110, and the colorant is a colorant M717.
The preparation method of the SEBS toughened PPO/PA6 composite material with the low dielectric constant comprises the following steps:
(1) mixing a fumaric anhydride grafting agent SEBS9001 and a styrene resin YH503 to prepare a grafting monomer mixture, stirring and shaking uniformly, standing for 5 minutes, adding an antioxidant, a UV (ultraviolet) anti-aging agent RQT-X-1, a lubricant TS0110, a flame retardant 6003 and a colorant M717 into the grafting monomer mixture, stirring and shaking uniformly, and standing to obtain a grafting mixture for later use;
(2) mixing PPO-731 and nylon (PA6) YH400, stirring and shaking uniformly, standing for 10 minutes, fully mixing with the graft mixture, adding into a high-speed (1000r/min) stirring pot, and stirring at constant speed for 5-10 minutes to obtain a total mixture;
(3) and adding the total mixture into an extruder (the main machine long neck ratio L/D is 60), and carrying out melt grafting reaction at the processing temperature of 280-300 ℃ and the main machine rotating speed of 520r/min to obtain the SEBS toughened PPO/PA6 composite material with the low dielectric constant.
Compared with the prior art, the invention has obvious beneficial effects, and the technical scheme can show that: the preparation method comprises the steps of firstly forming a Maleic Anhydride (MAH) grafted styrene- (ethylene-butylene) -styrene blend SEBS (SEBS-g-MAH), then adding a PPO/PA6 mixture to form a PA6/SEBS-g-MA/PPO blend, adding an intramolecular lubricant to form an SEBS-g-MAH-g-PPO/PA6 graft copolymer taking MAH as a symmetry axis, and adding a compatilizer to the SEBS/PPO/PA6 blend to form the symmetry of SEBS-g-MAH-g-PPO/PA6 groups and reduce the dielectric constant. Therefore, the invention mainly reduces the dielectric constant by adjusting the molecular bond symmetry of the molecular structure of the material, and the SEBS is effectively grafted by using the grafting agent, thereby not only improving the compatibility of the PPO/PA6 alloy system, but also simultaneously playing a toughening role to form the SEBS-g-MAH-g-PPO/PA6 graft copolymer taking MAH as a symmetry axis, having high group symmetry and reduced dielectric constant,
Detailed Description
The raw materials in the examples are illustrated below:
PPO resin: an innovative plastic with a Shabo base and a trade mark of PPO-731.
PA6 resin: the chemical company of Yueyang in Hunan province has a trade name of YH 400.
Toughening agent SEBS resin: medium petrochemical, thermoplastic rubber SEBSYH-503.
Lubricant: suzhou Union-Hold chemical, Inc., under the designation TS 0110.
Electric flame retardant: dalong chemical company Limited under the designation 6003.
UV anti-aging agent: henan Ruiqi Special chemical Co., Ltd, the brand is RQT-X-1.
Maleic anhydride grafted SEBS-g-MAH, SEBS9001, Suzhou Susai plastication Co.
Antioxidant: antioxidant 1010, known collectively as pentaerythritol tetrakis [3- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionate ], type Irganox1010, Pasteur, Germany: antioxidant 168, all known as tris (2, 4-di-tert-butylphenyl) phosphite, type Irganox168, Pasteur, Germany.
Colorant: and M717.
Example 1:
the preparation method of the SEBS toughened PPO/PA6 composite material with the low dielectric constant comprises the following steps:
(1) preparing a grafting monomer mixture from a fumaric anhydride grafting agent SEBS9001 and a styrene resin YH503 according to the mass fraction ratio of 10:10, stirring and shaking uniformly, standing for 5 minutes, adding 10100.25 parts of an antioxidant, 1680.25 parts of an antioxidant, RQT-X-10.5 parts of a UV (ultraviolet) anti-aging agent, TS01100.5 parts of a lubricant, 60032 parts of a flame retardant and M7170.5 parts of a colorant into the grafting monomer mixture according to the mass fraction ratio, stirring and shaking uniformly, and standing to obtain a grafting mixture for later use;
(2) mixing polyphenylene oxide PPO-731 and nylon (PA6) YH400 in a mass fraction ratio of 46: mixing 30 parts of the components, stirring and shaking up, standing for 10 minutes, fully mixing the components with the graft mixture, adding the mixture into a high-speed (1000r/min) stirring pot, and stirring for 10 minutes at a constant speed to obtain a total mixture;
(3) and adding the total mixture into an extruder (the main machine length-neck ratio L/D is 60), and carrying out melt grafting reaction at the processing temperature of 300 ℃ and the main machine rotating speed of 520r/min to obtain the composite material.
Example 2:
the preparation method of the SEBS toughened PPO/PA6 composite material with the low dielectric constant comprises the following steps:
(1) preparing a grafting monomer mixture from a fumaric anhydride grafting agent SEBS9001 and a styrene resin YH503 according to a mass fraction ratio of 15:10, stirring and shaking uniformly, standing for 5 minutes, adding 10100.25 parts of an antioxidant, 1680.25 parts of an antioxidant, RQT-X-11 parts of a UV (ultraviolet) anti-aging agent, TS01101 parts of a lubricant, 60034 parts of a flame retardant and M7170.5 parts of a colorant respectively according to a mass fraction ratio, stirring and shaking uniformly, and standing to obtain a grafting mixture for later use;
(2) mixing polyphenylene oxide PPO-731 and nylon (PA6) YH400 in a mass fraction ratio of 44: mixing 24 parts of the components, stirring and shaking uniformly, standing for 10 minutes, fully mixing with the graft mixture, adding into a high-speed (1000r/min) stirring pot, and stirring at a constant speed for 5 minutes to obtain a total mixture;
(3) and adding the total mixture into an extruder (the main machine length-neck ratio L/D is 60), and carrying out melt grafting reaction at the processing temperature of 280 ℃ and the main machine rotating speed of 520r/min to obtain the composite material.
Example 3:
the preparation method of the SEBS toughened PPO/PA6 composite material with the low dielectric constant comprises the following steps:
(1) preparing a grafting monomer mixture from a fumaric anhydride grafting agent SEBS9001 and a styrene resin YH503 according to the mass fraction ratio of 12:10, stirring and shaking uniformly, standing for 5 minutes, adding 10100.5 parts of an antioxidant, 1680.5 parts of an antioxidant, RQT-X-10.5 parts of a UV (ultraviolet) anti-aging agent, TS01101 parts of a lubricant, 60032 parts of a flame retardant and M7170.5 parts of a colorant respectively according to the mass fraction ratio, stirring and shaking uniformly, and standing to obtain a grafting mixture for later use;
(2) mixing polyphenylene oxide PPO-731 and nylon (PA6) YH400 in a mass fraction ratio of 41: 32 parts of the mixture is stirred and shaken up after being mixed, is fully mixed with the graft mixture after being stood for 10 minutes, and is added into a high-speed (1000r/min) stirring pot to be stirred for 8 minutes at a constant speed, so as to obtain a total mixture;
(3) and adding the total mixture into an extruder (the main machine length-neck ratio L/D is 60), and carrying out melt grafting reaction at the processing temperature of 290 ℃ and the main machine rotating speed of 520r/min to obtain the composite material.
Example 4:
the preparation method of the SEBS toughened PPO/PA6 composite material with the low dielectric constant comprises the following steps:
(1) preparing a grafting monomer mixture from a fumaric anhydride grafting agent SEBS9001 and a styrene resin YH503 according to the mass fraction ratio of 12:15, stirring and shaking uniformly, standing for 5 minutes, adding 10100.25 parts of an antioxidant, 1680.25 parts of an antioxidant, RQT-X-11 parts of a UV (ultraviolet) anti-aging agent, TS01101 parts of a lubricant, 60034 parts of a flame retardant and 7170.5 parts of a colorant respectively according to the mass fraction ratio, stirring and shaking uniformly, and standing to obtain the grafting mixture for later use;
(2) mixing polyphenylene oxide PPO-731 and nylon (PA6) YH400 in a mass fraction ratio of 42: mixing 24 parts of the components, stirring and shaking uniformly, standing for 10 minutes, fully mixing with the graft mixture, adding into a high-speed (1000r/min) stirring pot, and stirring at a constant speed for 8 minutes to obtain a total mixture;
(3) and adding the total mixture into an extruder (the main machine length-neck ratio L/D is 60), and carrying out melt grafting reaction at the processing temperature of 290 ℃ and the main machine rotating speed of 520r/min to obtain the composite material.
Example 5:
the preparation method of the SEBS toughened PPO/PA6 composite material with the low dielectric constant comprises the following steps:
(1) preparing a grafting monomer mixture from a fumaric anhydride grafting agent SEBS9001 and a styrene resin YH503 according to the mass fraction ratio of 10:10, stirring and shaking uniformly, standing for 5 minutes, adding 10100.25 parts of an antioxidant, 1680.25 parts of an antioxidant, RQT-X-10.5 parts of a UV (ultraviolet) anti-aging agent, TS01100.5 parts of a lubricant, 60032 parts of a flame retardant and M7170.5 parts of a colorant into the grafting monomer mixture according to the mass fraction ratio, stirring and shaking uniformly, and standing to obtain a grafting mixture for later use;
(2) mixing polyphenylene oxide PPO-731 and nylon (PA6) YH400 in a mass fraction ratio of 40: mixing 36 parts of the raw materials, stirring and shaking uniformly, standing for 10 minutes, fully mixing with the graft mixture, adding into a high-speed (1000r/min) stirring pot, and stirring at a constant speed for 8 minutes to obtain a total mixed solution;
(3) and adding the total mixture into an extruder (the main machine length-neck ratio L/D is 60), and carrying out melt grafting reaction at the processing temperature of 290 ℃ and the main machine rotating speed of 520r/min to obtain the composite material.
Comparative example 1:
the preparation method of the SEBS toughened PPO/PA6 composite material with the low dielectric constant comprises the following steps:
(1) stirring and shaking uniformly UV (ultraviolet) anti-aging agent RQT-X-10.5 parts, lubricant TS01100.5 parts, flame retardant 60034 parts and colorant M7170.5 parts, and standing to obtain a graft mixture for later use;
(2) mixing PPO-731 and nylon (PA6) YH400 according to a mass fraction ratio of 51: 43 parts of the mixture is stirred and shaken evenly, is kept still for 10 minutes and then is fully mixed with the graft mixture, and is added into a high-speed (1000r/min) stirring pot to be stirred for 8 minutes at a constant speed, so as to obtain a total mixed solution;
(3) and adding the total mixture into an extruder (the main machine length-neck ratio L/D is 60), and carrying out melt grafting reaction at the processing temperature of 290 ℃ and the main machine rotating speed of 520r/min to obtain the composite material.
Test example:
tensile strength, flexural strength and dielectric constant of the SEBS/PPO/PA6 composite materials with low dielectric constant obtained in examples 1-5 and the reference PPO/PA6 alloy material obtained in comparative example 1 were measured by the following methods, and the obtained results are shown in Table 2.
(1) Tensile strength: testing according to GB/T1040;
(2) bending strength: testing according to GB/T1040;
(3) impact strength: testing according to GB/T1843
(4) Dielectric constant: testing according to GB/T1409-2006;
the test results are given in the following table:
as can be seen from the table above, the SEBS/PPO/PA6 composite material with low dielectric constant, which is prepared from the raw materials and the preparation method provided by the invention, has excellent mechanical properties and a low dielectric constant. The material can be applied to a low-frequency electric field, and has high impact resistance and low dielectric property.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and any simple modification, equivalent change and modification made to the above embodiment according to the technical spirit of the present invention are within the scope of the present invention without departing from the technical spirit of the present invention.
Claims (5)
1. The SEBS toughened PPO/PA6 composite material comprises the following raw materials in parts by weight in master batches: PPO-731: 40-46 parts of nylon (PA6) YH 400: 24-36 parts of a toughening agent SEBS resin: 10-15 parts of fumaric anhydride grafting agent: 10-15, antioxidant: 0.5-1 part of flame retardant: 2-4 parts of anti-aging agent: 0.5-1, lubricant: 0.5-1 part of colorant: 0.5 part.
2. An SEBS toughened PPO/PA6 composite material, as claimed in claim 1, wherein: the antioxidant is one of antioxidant 1010 and antioxidant 168 or a compound of antioxidant 1010 and antioxidant 168 with the mass fraction ratio of 1: 1.
3. The SEBS-toughened PPO/PA6 composite material as claimed in claim 1, wherein the antioxidant 1010 is pentaerythritol tetrakis [ β - (3, 5-di-tert-butyl-4-hydroxyphenyl) propionate ], and the thermal decomposition temperature is not less than 350 ℃.
4. An SEBS toughened PPO/PA6 composite material, as claimed in claim 1, wherein: the flame retardant is a flame retardant 6003, the aging inhibitor is a UV aging inhibitor RQT-X-1, the lubricant is a lubricant TS0110, and the colorant is a colorant M717.
5. A preparation method of the SEBS toughened PPO/PA6 composite material with low dielectric constant as claimed in one of claims 1 to 4, comprising the following steps:
(1) mixing a fumaric anhydride grafting agent SEBS9001 and a styrene resin YH503 to prepare a grafting monomer mixture, stirring and shaking uniformly, standing for 5 minutes, adding an antioxidant, a UV (ultraviolet) anti-aging agent RQT-X-1, a lubricant TS0110, a flame retardant 6003 and a colorant M717 into the grafting monomer mixture, stirring and shaking uniformly, and standing to obtain a grafting mixture for later use;
(2) mixing PPO-731 and nylon (PA6) YH400, stirring and shaking uniformly, standing for 10 minutes, fully mixing with the graft mixture, adding into a high-speed (1000r/min) stirring pot, and stirring at constant speed for 5-10 minutes to obtain a total mixture;
(3) and adding the total mixture into an extruder (host machine long neck ratio L/D = 60), and carrying out melt grafting reaction at the processing temperature of 280-300 ℃ and the host machine rotating speed of 520r/min to obtain the SEBS toughening PPO/PA6 composite material with low dielectric constant.
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| CN201911417551.7A CN111040414A (en) | 2019-12-31 | 2019-12-31 | SEBS (styrene-ethylene-butadiene-styrene) toughened PPO/PA6 composite material with low dielectric constant and preparation method thereof |
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| CN201911417551.7A CN111040414A (en) | 2019-12-31 | 2019-12-31 | SEBS (styrene-ethylene-butadiene-styrene) toughened PPO/PA6 composite material with low dielectric constant and preparation method thereof |
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Cited By (1)
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Application publication date: 20200421 |