CN110982245A - Modified polyphenyl ether resin material and preparation method and application thereof - Google Patents
Modified polyphenyl ether resin material and preparation method and application thereof Download PDFInfo
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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
- C08L2201/00—Properties
- C08L2201/02—Flame or fire retardant/resistant
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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
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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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
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
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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
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four 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
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Abstract
The invention provides a modified polyphenylene oxide resin material and a preparation method and application thereof, belonging to the technical field of composite materials. The modified polyphenyl ether resin material provided by the invention comprises the following preparation raw materials in parts by mass: 100 parts of polyphenyl ether resin, 4-8 parts of high impact polystyrene, 10-12 parts of a flame retardant, 3-5 parts of a toughening agent, 0.2-0.4 part of an antioxidant, 0.1-0.2 part of an ultraviolet absorbent and 0.8-1.0 part of a carbon black master batch. The modified polyphenyl ether resin material provided by the invention has the advantages of higher low-temperature impact resistance, good flame retardance, higher glowing filament ignition temperature, better resistance to damp-heat aging, high-low temperature aging and electrical insulation, and can be used for manufacturing photovoltaic junction box products or products such as electrical connectors in the photovoltaic field.
Description
Technical Field
The invention relates to the technical field of composite materials, in particular to a modified polyphenyl ether resin material and a preparation method and application thereof.
Background
PAE is a white amorphous thermoplastic polyphenylene ether, one of five major engineering plastics. The composite material has excellent physical and mechanical properties and electrical properties, excellent heat resistance and self-extinguishing property, the density of the composite material is the smallest among five engineering plastics, and the composite material has excellent hot water resistance and dimensional stability. Although the polyphenylene oxide resin has a certain self-extinguishing property, the polyphenylene oxide resin cannot meet the high flame-retardant requirement in certain fields, such as the fields of electronic appliances, household appliances, automobile parts, photovoltaic parts and the like. In addition, polyphenylene ether resins have poor processing flowability and cannot be applied alone, and therefore, the polyphenylene ether resins need to form an alloy material with polystyrene to improve the processing performance of the polyphenylene ether resins. However, because the molecular chain of the polyphenyl ether contains a large number of benzene ring structures, the rigidity is strong, the impact resistance of the alloy material formed by the polyphenyl ether and the polystyrene is poor, even if high impact polystyrene is adopted, the notch impact strength is only improved, but the notch impact strength still does not exceed 15kJ/m2The requirement of high impact resistance cannot be met.
Disclosure of Invention
The modified polyphenyl ether resin material provided by the invention has high low-temperature impact resistance and flame retardance, and also has excellent resistance to wet-heat aging and high-low temperature aging, and can be used for preparing photovoltaic junction boxes or electrical connectors.
In order to achieve the above object, the present invention provides the following technical solutions:
the invention provides a modified polyphenyl ether resin material which comprises the following preparation raw materials in parts by weight:
100 parts of polyphenyl ether resin, 4-8 parts of high impact polystyrene, 10-12 parts of a flame retardant, 3-5 parts of a toughening agent, 0.2-0.4 part of an antioxidant, 0.1-0.2 part of an ultraviolet absorbent and 0.8-1.0 part of a carbon black master batch.
Preferably, the polyphenylene ether resin has an intrinsic viscosity of 0.35 to 0.55 dI/g.
Preferably, the content of butadiene in the high impact polystyrene is 30-33%.
Preferably, the flame retardant is a phosphate flame retardant, or a mixture of a phosphate flame retardant and a nitrogen-based flame retardant.
Preferably, the phosphate flame retardant is a flame retardant PX-220, and the nitrogen-based flame retardant is a flame retardant MCA.
Preferably, the toughening agent comprises a main toughening agent and an auxiliary toughening agent, wherein the main toughening agent is a styrene-ethylene-butadiene-styrene linear block copolymer or a styrene-butadiene-styrene block copolymer, and the auxiliary toughening agent is a maleic anhydride grafted styrene-ethylene-butadiene-styrene linear block copolymer.
Preferably, the antioxidant comprises an antioxidant 1010 and an antioxidant 168, and the mass ratio of the antioxidant 1010 to the antioxidant 168 is (0.2-0.4): (0.2-0.4).
Preferably, the ultraviolet absorber is an ultraviolet absorber UV-234.
The invention provides a preparation method of the modified polyphenylene ether resin material in the technical scheme, which comprises the following steps:
and extruding the preparation raw materials of the modified polyphenyl ether resin material and then granulating to obtain the modified polyphenyl ether resin material.
The invention provides an application of the modified polyphenylene ether resin material in the technical scheme or the modified polyphenylene ether resin material prepared by the preparation method in the technical scheme in preparation of a photovoltaic junction box or an electric appliance connector.
The invention provides a modified polyphenyl ether resin material which comprises the following preparation steps in parts by weightRaw materials: 100 parts of polyphenyl ether resin, 4-8 parts of high impact polystyrene, 10-12 parts of a flame retardant, 3-5 parts of a toughening agent, 0.2-0.4 part of an antioxidant, 0.1-0.2 part of an ultraviolet absorbent and 0.8-1.0 part of a carbon black master batch. According to the invention, the polyphenyl ether resin is used as a matrix, the high impact polystyrene is matched, and the mechanical properties such as toughness, impact resistance and the like of the modified polyphenyl ether resin material can be effectively improved by utilizing the toughening agent; the flame retardant ensures that the modified polyphenyl ether resin material has better flame retardant property and higher glowing filament ignition temperature; the antioxidant can improve the oxidation resistance of the modified polyphenyl ether resin material, so that the modified polyphenyl ether resin material has better heat-resistant aging performance; the ultraviolet absorbent can improve the ultraviolet aging resistance of the modified polyphenyl ether resin material; the carbon black master batch is beneficial to improving the weather resistance of the modified polyphenyl ether resin material and has a certain reinforcing effect. The invention utilizes the coordination of all components to ensure that the finally obtained modified polyphenyl ether resin material has higher low-temperature impact resistance and can process a workpiece with high low-temperature impact resistance requirement; good flame retardant property, and the flame retardant grade can reach 0.8V0(ii) a The glow wire has higher ignition temperature which can reach 750 ℃; the product has good electrical insulation performance and weather resistance, and is suitable for being manufactured into products which are used outdoors for a long time and have high flame retardance and high dimensional stability requirements, such as products used for manufacturing photovoltaic junction box products or electrical appliance connectors and the like in the photovoltaic field.
The invention provides a preparation method of a modified polyphenyl ether resin material, which is simple and easy to control, environment-friendly, safe and good in economic benefit.
Detailed Description
The invention provides a modified polyphenyl ether resin material which comprises the following preparation raw materials in parts by weight:
100 parts of polyphenyl ether resin, 4-8 parts of high impact polystyrene, 10-12 parts of a flame retardant, 3-5 parts of a toughening agent, 0.2-0.4 part of an antioxidant, 0.1-0.2 part of an ultraviolet absorbent and 0.8-1.0 part of a carbon black master batch.
According to the mass parts, the modified polyphenylene ether resin material comprises 100 parts of polyphenylene ether resin; in the invention, the polyphenylene ether resin preferably has an intrinsic viscosity of 0.35-0.55 dI/g, more preferably 0.35-0.45 dI/g, and specifically, the polyphenylene ether resin may be a polyphenylene ether resin having an intrinsic viscosity of 0.35dI/g, 0.40dI/g or 0.45dI/g, or may be a mixture of two polyphenylene ether resins having different intrinsic viscosities, such as a mixture of two polyphenylene ether resins having intrinsic viscosities of 0.35dI/g and 0.40dI/g, or a mixture of two polyphenylene ether resins having intrinsic viscosities of 0.40dI/g and 0.45 dI/g; the mass ratio of the two polyphenylene ether resins in the mixture is preferably 1: 1. in the examples of the present invention, the polyphenylene ether resins (PAE resins) were purchased from Rancheng New materials Co., Ltd, and the specific models of the polyphenylene ether resins having intrinsic viscosities of 0.35dI/g, 0.40dI/g and 0.45dI/g were LXR35, LXR40 and LXR45, respectively.
Based on the mass parts of the polyphenyl ether resin, the modified polyphenyl ether resin material comprises 4-8 parts of high impact polystyrene, preferably 5-7 parts. In the invention, the content of butadiene in the high impact polystyrene is preferably 30-33%, and more preferably 33%. In an embodiment of the present invention, the High Impact Polystyrene (HIPS) is purchased from Zhenjiangqi beautifying chemical Co., Ltd, and the specific model is HIPS PH-88. In the invention, the high impact polystyrene has high butadiene content and has the characteristics of rubber materials, thereby being beneficial to improving the impact resistance of the modified polyphenylene oxide resin material.
Based on the mass parts of the polyphenylene ether resin, the modified polyphenylene ether resin material comprises 10-12 parts of a flame retardant, wherein the flame retardant is preferably a phosphate flame retardant or a mixture of the phosphate flame retardant and a nitrogen flame retardant; the phosphate flame retardant is preferably a flame retardant PX-220, the nitrogen flame retardant is preferably a flame retardant MCA, when the flame retardant is a mixture of the phosphate flame retardant and the nitrogen flame retardant, the phosphate flame retardant is a main flame retardant, the nitrogen flame retardant is an auxiliary flame retardant, and the mass ratio of the main flame retardant to the auxiliary flame retardant is preferably (10-12): (2.0-4.0). In the invention, the phosphate flame retardant has good compatibility with the polyphenylene oxide resin, plays a good flame retardant role and is beneficial to improving the mechanical property of the obtained modified polyphenylene oxide resin material; particularly, the flame retardant MCA is beneficial to improving the glow wire ignition temperature of the modified polyphenylene oxide resin material and has a certain lubricating effect.
Based on the mass parts of the polyphenyl ether resin, the modified polyphenyl ether resin material comprises 3-5 parts of a toughening agent, preferably 3-4 parts. In the present invention, the toughening agent preferably includes a primary toughening agent and a secondary toughening agent; the primary toughener is preferably a styrene-ethylene-butadiene-styrene linear block copolymer (SEBS) or a styrene-butadiene-styrene block copolymer (SBS), more preferably SEBS; the auxiliary toughening agent is preferably maleic anhydride grafted styrene-ethylene-butadiene-styrene linear block copolymer (SEBS-g-MAH). In the invention, the mass ratio of the main toughening agent to the auxiliary toughening agent in the toughening agent is preferably (2-4): (0.5 to 1.5), more preferably (2 to 4): 1. in the embodiment of the invention, the SEBS is purchased from the Balng division of China petrochemical group asset management and management, Inc., and has the specific model of SEBS YH 503; the SEBS-g-MAH is purchased from Keteng of America, and the specific model is FG 1924. In the invention, the toughening agent can improve the impact resistance of the obtained modified polyphenylene ether resin material, and is particularly beneficial to improving the low-temperature impact resistance; furthermore, the SEBS is used as a main toughening agent, does not contain unsaturated double bonds, has good heat resistance and weather resistance and excellent low-temperature resistance, can effectively improve the low-temperature impact resistance of the obtained modified polyphenyl ether resin material, and is beneficial to improving the environmental stress cracking resistance of the modified polyphenyl ether resin material under the low-temperature condition for a long time. The invention is simultaneously matched with a small amount of SEBS-g-MAH as an auxiliary toughening agent, can effectively improve the toughness, the mechanical property and the like of the modified polyphenyl ether resin material, enables the modified polyphenyl ether resin material product to have higher strength and toughness under the condition of no glass fiber reinforcement, and can meet the requirements of photovoltaic junction boxes or electrical connectors on the strength and the toughness.
Based on the mass parts of the polyphenyl ether resin, the modified polyphenyl ether resin material comprises 0.2-0.4 part of antioxidant, preferably 0.2-0.3 part. In the invention, the antioxidant preferably comprises an antioxidant 1010 and an antioxidant 168, and the mass ratio of the antioxidant 1010 to the antioxidant 168 is preferably (0.2-0.4): (0.2 to 0.4), more preferably 1: 1. in the invention, the antioxidant can improve the oxidation resistance of the modified polyphenylene ether resin material, so that the modified polyphenylene ether resin material has better heat aging resistance.
The modified polyphenylene ether resin material comprises, by mass, 0.1-0.2 parts of an ultraviolet absorber, preferably 0.1 part. In the present invention, the ultraviolet absorber is preferably an ultraviolet absorber UV-234. In the invention, the ultraviolet absorbent can strongly absorb ultraviolet light and convert the energy of the ultraviolet absorbent into a harmless heat energy form to be discharged, thereby being beneficial to improving the ultraviolet aging resistance of the obtained modified polyphenylene ether resin material.
Based on the mass parts of the polyphenylene ether resin, the modified polyphenylene ether resin material comprises 0.8-1.0 part of carbon black master batch. In the invention, the carbon black master batch can absorb or reflect ultraviolet light, the existence of the carbon black master batch is equivalent to that a barrier is established between the polyphenyl ether resin and light radiation, so that the light aging is effectively inhibited, and meanwhile, the carbon black master batch also has a certain reinforcing effect, so that the strength of the obtained modified polyphenyl ether resin material can be effectively improved. Therefore, the carbon black masterbatch particles can improve the weather resistance and strength of the modified polyphenylene ether resin material.
The invention provides a preparation method of the modified polyphenylene ether resin material in the technical scheme, which comprises the following steps:
and extruding the preparation raw materials of the modified polyphenyl ether resin material and then granulating to obtain the modified polyphenyl ether resin material.
In the invention, when the flame retardant is a phosphate flame retardant, other preparation raw materials except the phosphate flame retardant are preferably mixed to obtain a mixed material; and adding the mixed material and the phosphate flame retardant into a parallel double-screw extruder for extrusion and granulation to obtain the modified polyphenylene ether resin material. When the flame retardant is a mixture of a phosphate flame retardant and a nitrogen flame retardant, other preparation raw materials (including the nitrogen flame retardant) except the phosphate flame retardant are preferably mixed to obtain a mixed material; and adding the mixed material and the phosphate flame retardant into a parallel double-screw extruder for extrusion and granulation to obtain the modified polyphenylene ether resin material.
The mixing mode of the components is not specially limited when the mixed material is prepared, the components can be uniformly mixed, and the components can be mixed for 5-10 min in a mixer with the rotating speed of 30-35 rpm. In the present invention, the process parameters in the extrusion process are preferably: the temperature of the first section is 260-270 ℃, the temperature of the second section is 270-275 ℃, the temperature of the third section is 275-280 ℃, the temperature of the fourth section is 275-280 ℃, the temperature of the template is 275-280 ℃, and the rotating speed of the screw is 200 rpm.
The invention preferably cools the extruded material and then carries out granulation; the cooling is water cooling, and the temperature of water used for cooling is preferably 25-30 ℃. The granulation method of the present invention is not particularly limited, and a granulation method known to those skilled in the art may be used.
The invention provides an application of the modified polyphenylene ether resin material in any one of the technical schemes or the modified polyphenylene ether resin material prepared by the preparation method in the technical scheme in preparation of photovoltaic modules or household appliances.
The technical solution of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Some of the starting materials used in the following examples were specified as follows:
the polyphenyl ether resin is one or two of polyphenyl ether resins with the intrinsic viscosities of 0.35dI/g, 0.40dI/g and 0.45dI/g, and the polyphenyl ether resin is purchased from Rancheng New materials Co., Ltd, and has the specific models of LXR35, LXR40 and LXR45 respectively;
the high impact polystyrene resin is purchased from Zhenjiangqi beautifying chemical Co., Ltd, and the specific model is HIPS PH-88;
the main toughening agent is polystyrene-ethylene-butylene-styrene (SEBS), which is purchased from the Balng division of China petrochemical group asset management, Inc., and has the specific model of SEBS YH 503;
the auxiliary toughening agent is SEBS-g-MAH which is purchased from American Keteng and has a specific model number of FG 1924;
the phosphate flame retardant is PX-220, and the nitrogen flame retardant is MCA;
the antioxidant is a main antioxidant 1010 and an auxiliary antioxidant 168;
the ultraviolet absorber is an ultraviolet absorber UV 234.
Example 1
Mixing PAE resin, high impact polystyrene resin (HIPS), flame retardant MCA, antioxidant 1010, antioxidant 168, main toughening agent SEBS, auxiliary toughening agent SEBS-g-MAH, ultraviolet absorbent and carbon black master batch in a mixer for 5min, adding the obtained mixed material and flame retardant PX-220 into a parallel double-screw extruder, extruding, cooling (specifically, water cooling at 25 ℃), and granulating to obtain a black modified PAE material; wherein the technological parameters in the extrusion process are as follows: the first stage temperature was 270 ℃, the second stage temperature was 275 ℃, the third stage temperature was 275 ℃, the fourth stage temperature was 280 ℃, the die plate temperature was 280 ℃ and the screw speed was 200 rpm.
Examples 2 to 6
A black modified PAE material was prepared by reference to the procedure of example 1, wherein the types and amounts of the raw materials used in the examples are specifically listed in Table 1.
TABLE 1 kinds and amounts of preparation raw materials used in examples 1 to 6
The modified PAE materials prepared in the embodiments 1-6 are subjected to performance tests, and specifically the following steps are carried out:
and (4) testing standard: the tensile strength was tested according to ISO-527, the flexural strength was tested according to ISO-178, the flame resistance was tested according to UL-94, the impact strength was tested according to ISO-179, the glow wire ignition temperature was tested according to IEC60695, the dielectric strength was tested according to IEC60243, the volume resistivity was tested according to IEC60093 and the heat distortion temperature was tested according to ISO75 f.
Manufacturing a test sample strip: drying the modified PAE material prepared in the embodiment 1-6 for 4 hours at the temperature of 120 ℃, and then preparing a test sample strip on an injection molding machine, wherein the temperature of a charging barrel of the injection molding machine is as follows: the temperature of the first section is 275 ℃, the temperature of the second section is 275 ℃, and the temperature of the third section is 270 ℃; the nozzle temperature is 265 ℃; the temperature of the die is 65 ℃; the injection pressure is 85 MPa; the back pressure is 8 MPa; the screw speed was 80 rpm.
The results of the performance tests and the indices that need to be met are specified in table 2.
TABLE 2 Performance test results for modified PAE materials prepared in examples 1-6
As can be seen from Table 2, all performance indexes of the modified PAE material provided by the invention meet the performance index requirements of photovoltaic and electronic appliances, which indicates that the modified PAE material provided by the invention can be completely used for preparing photovoltaic junction boxes and electric appliance shells.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (10)
1. The modified polyphenylene oxide resin material is characterized by comprising the following preparation raw materials in parts by mass:
100 parts of polyphenyl ether resin, 4-8 parts of high impact polystyrene, 10-12 parts of a flame retardant, 3-5 parts of a toughening agent, 0.2-0.4 part of an antioxidant, 0.1-0.2 part of an ultraviolet absorbent and 0.8-1.0 part of a carbon black master batch.
2. The modified polyphenylene ether resin material according to claim 1, wherein the polyphenylene ether resin has an intrinsic viscosity of 0.35 to 0.55 dI/g.
3. The modified polyphenylene ether resin material according to claim 1, wherein the high impact polystyrene contains butadiene in an amount of 30 to 33%.
4. The modified polyphenylene ether resin material according to claim 1, wherein the flame retardant is a phosphate flame retardant or a mixture of a phosphate flame retardant and a nitrogen-based flame retardant.
5. The modified polyphenylene ether resin material according to claim 4, wherein said phosphate flame retardant is a flame retardant PX-220, and said nitrogen-based flame retardant is a flame retardant MCA.
6. The modified polyphenylene ether resin material of claim 1, wherein the toughening agent comprises a primary toughening agent and a secondary toughening agent, the primary toughening agent being a styrene-ethylene-butadiene-styrene linear block copolymer or a styrene-butadiene-styrene block copolymer, and the secondary toughening agent being a maleic anhydride grafted styrene-ethylene-butadiene-styrene linear block copolymer.
7. The modified polyphenylene ether resin material as claimed in claim 1, wherein the antioxidant comprises an antioxidant 1010 and an antioxidant 168, and the mass ratio of the antioxidant 1010 to the antioxidant 168 is (0.2-0.4): (0.2-0.4).
8. The modified polyphenylene ether resin material according to claim 1, wherein said ultraviolet absorber is an ultraviolet absorber UV-234.
9. The process for producing a modified polyphenylene ether resin material according to any one of claims 1 to 8, which comprises the steps of:
and extruding the preparation raw materials of the modified polyphenyl ether resin material and then granulating to obtain the modified polyphenyl ether resin material.
10. Use of the modified polyphenylene ether resin material according to any one of claims 1 to 8 or the modified polyphenylene ether resin material prepared by the preparation method according to claim 9 in the preparation of a photovoltaic junction box or an electrical connector.
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| CN111690248A (en) * | 2020-06-05 | 2020-09-22 | 江西塑高新材料有限公司 | Modified polyphenyl ether conductive masterbatch |
| CN113372707A (en) * | 2021-06-28 | 2021-09-10 | 大连中沐化工有限公司 | Composition for shell of power lithium battery pack |
| CN113789043A (en) * | 2021-09-29 | 2021-12-14 | 苏州赛伍应用技术股份有限公司 | Heat-conducting junction box material and preparation method and application thereof |
| CN115011099A (en) * | 2022-06-24 | 2022-09-06 | 鑫宝智能制造唐山有限公司 | Impact-resistant high-thermal conductivity polyphenylene ether composite material and preparation method thereof |
| CN116948383A (en) * | 2023-06-16 | 2023-10-27 | 广东兴盛迪科技有限公司 | High-strength high-toughness flame-retardant thermoplastic polyphenyl ether composite material and application thereof |
| CN116948383B (en) * | 2023-06-16 | 2024-05-07 | 广东兴盛迪科技有限公司 | High-strength high-toughness flame-retardant thermoplastic polyphenyl ether composite material and application thereof |
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Application publication date: 20200410 |