CN116535840A - PPO/HIPS alloy with high ultrasonic welding strength and preparation method thereof - Google Patents
PPO/HIPS alloy with high ultrasonic welding strength and preparation method thereof Download PDFInfo
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- CN116535840A CN116535840A CN202310669501.8A CN202310669501A CN116535840A CN 116535840 A CN116535840 A CN 116535840A CN 202310669501 A CN202310669501 A CN 202310669501A CN 116535840 A CN116535840 A CN 116535840A
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- 238000003466 welding Methods 0.000 title claims abstract description 66
- 239000000956 alloy Substances 0.000 title claims abstract description 44
- 229910045601 alloy Inorganic materials 0.000 title claims abstract description 44
- 229920005669 high impact polystyrene Polymers 0.000 title claims abstract description 43
- 239000004797 high-impact polystyrene Substances 0.000 title claims abstract description 43
- 238000002360 preparation method Methods 0.000 title abstract description 9
- 238000000034 method Methods 0.000 claims abstract description 29
- 239000011347 resin Substances 0.000 claims abstract description 23
- 229920005989 resin Polymers 0.000 claims abstract description 23
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 claims abstract description 11
- 239000006229 carbon black Substances 0.000 claims abstract description 7
- 239000002994 raw material Substances 0.000 claims description 14
- 238000002156 mixing Methods 0.000 claims description 12
- 239000003963 antioxidant agent Substances 0.000 claims description 11
- 229920001955 polyphenylene ether Polymers 0.000 claims description 11
- 238000003756 stirring Methods 0.000 claims description 11
- 238000005303 weighing Methods 0.000 claims description 11
- 229920000468 styrene butadiene styrene block copolymer Polymers 0.000 claims description 8
- 239000004793 Polystyrene Substances 0.000 claims description 6
- 230000003078 antioxidant effect Effects 0.000 claims description 5
- 238000001816 cooling Methods 0.000 claims description 5
- 238000001125 extrusion Methods 0.000 claims description 5
- 239000000314 lubricant Substances 0.000 claims description 5
- 239000012745 toughening agent Substances 0.000 claims description 5
- 239000011159 matrix material Substances 0.000 claims description 4
- 239000012752 auxiliary agent Substances 0.000 claims description 3
- FACXGONDLDSNOE-UHFFFAOYSA-N buta-1,3-diene;styrene Chemical class C=CC=C.C=CC1=CC=CC=C1.C=CC1=CC=CC=C1 FACXGONDLDSNOE-UHFFFAOYSA-N 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims description 2
- RKISUIUJZGSLEV-UHFFFAOYSA-N n-[2-(octadecanoylamino)ethyl]octadecanamide Chemical compound CCCCCCCCCCCCCCCCCC(=O)NCCNC(=O)CCCCCCCCCCCCCCCCC RKISUIUJZGSLEV-UHFFFAOYSA-N 0.000 claims description 2
- -1 pentaerythritol ester Chemical class 0.000 claims description 2
- OJMIONKXNSYLSR-UHFFFAOYSA-N phosphorous acid Chemical compound OP(O)O OJMIONKXNSYLSR-UHFFFAOYSA-N 0.000 claims description 2
- 229920001296 polysiloxane Polymers 0.000 claims description 2
- 239000000843 powder Substances 0.000 claims description 2
- 239000003795 chemical substances by application Substances 0.000 claims 1
- 239000004417 polycarbonate Substances 0.000 abstract description 7
- 229920000515 polycarbonate Polymers 0.000 abstract description 7
- 238000006243 chemical reaction Methods 0.000 abstract description 6
- 238000004132 cross linking Methods 0.000 abstract description 4
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 3
- 125000002887 hydroxy group Chemical group [H]O* 0.000 abstract description 3
- 239000004595 color masterbatch Substances 0.000 abstract description 2
- 229920003023 plastic Polymers 0.000 abstract description 2
- 239000004033 plastic Substances 0.000 abstract description 2
- 239000004721 Polyphenylene oxide Substances 0.000 description 39
- 229920006380 polyphenylene oxide Polymers 0.000 description 39
- 108020001991 Protoporphyrinogen Oxidase Proteins 0.000 description 37
- 239000000463 material Substances 0.000 description 19
- 230000000052 comparative effect Effects 0.000 description 13
- 238000010008 shearing Methods 0.000 description 10
- 239000000203 mixture Substances 0.000 description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 238000002844 melting Methods 0.000 description 5
- 230000008018 melting Effects 0.000 description 5
- 229920013636 polyphenyl ether polymer Polymers 0.000 description 5
- 239000004594 Masterbatch (MB) Substances 0.000 description 3
- 239000000428 dust Substances 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000007062 hydrolysis Effects 0.000 description 2
- 238000006460 hydrolysis reaction Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229920001935 styrene-ethylene-butadiene-styrene Polymers 0.000 description 2
- 101001091417 Agaricus bisporus Polyphenol oxidase 1 Proteins 0.000 description 1
- 101000611521 Arabidopsis thaliana Protoporphyrinogen oxidase 1, chloroplastic Proteins 0.000 description 1
- 229920002633 Kraton (polymer) Polymers 0.000 description 1
- 125000003277 amino group Chemical group 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 229920006351 engineering plastic Polymers 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 230000001681 protective effect 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
Classifications
-
- 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
-
- 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
Abstract
The invention relates to a PPO/HIPS alloy with high ultrasonic welding strength and a preparation method thereof. According to the invention, by adding the amino-functionalized PPO resin, a large amount of heat is released in the ultrasonic welding process, so that two plastic contact surfaces to be welded are quickly melted, after a certain pressure is applied, the amino in the PPO at the interface and maleic anhydride in the compatilizer undergo a crosslinking reaction, the interface bonding strength is increased, and the effect of improving the welding strength of a workpiece is achieved. When the carbon black color master batch taking the polycarbonate as a carrier is added, the carbon black can absorb a large amount of heat during ultrasonic welding, and in addition, a large amount of terminal hydroxyl groups exist in the polycarbonate and react with maleic anhydride in the compatilizer, so that the ultrasonic welding strength between the workpieces is further improved.
Description
Technical Field
The invention belongs to the field of high polymer materials, and particularly relates to a PPO/HIPS alloy with high ultrasonic welding strength.
Background
Polyphenylene oxide (PPO for short) is an amorphous thermoplastic engineering plastic with excellent hydrolysis resistance, high temperature resistance, flame retardance, very low dielectric loss and dielectric constant, but because of the high viscosity, difficult melting and extremely poor processability of pure PPO, the polyphenylene oxide is usually blended with other resins to improve the processability of the PPO, and is commonly blended with HIPS to be modified, so that the PPO is widely applied to industries such as water treatment, photovoltaics, electronic appliances and the like at present.
In the water separator product in the dust collector, PPO/HIPS has excellent hydrolysis resistance, high heat resistance and other characteristics, and has become the preferred material for the water separator parts. The main welding processes in the market at present are ultrasonic welding, hot plate welding, vibration friction welding, laser welding and the like. The ultrasonic welding process has become the first welding process for welding at present because of the advantages of rapidness, flexibility, stable welding process, no welding auxiliary agent or protective gas, no harmful gas generation, relatively complex parts with a weldable structure and the like.
However, the structural wall thickness of the parts of the water separator is relatively weak due to the structural limitation, and the welding bonding strength is insufficient in the ultrasonic welding process, so that the problems of water leakage, air leakage and the like are caused. Therefore, it is very practical to develop a PPO/HIPS alloy with high ultrasonic welding strength.
Disclosure of Invention
The invention aims to solve the problems in the prior art and provides a PPO/HIPS alloy with high ultrasonic welding strength and a preparation method thereof.
The aim of the invention can be achieved by the following scheme:
the invention provides a PPO/HIPS alloy with high ultrasonic welding strength, which comprises the following raw materials in parts by weight:
the polyphenyl ether resin 1 is amino-functionalized polyphenyl ether resin.
The polyphenyl ether resin 2 is a general polyphenyl ether resin, and has the viscosity of 30-50cm 3 The total parts by weight of the polyphenylene ether resin 1 and the polyphenylene ether resin 2 per gram is preferably 30 to 75 parts. The viscosity and impact properties are controlled by a general purpose polyphenylene ether resin. Different polyphenylene ethers have different effects, and if high viscosity is selected, impact performance is improved, and if low viscosity is selected, viscosity can be reduced, and fluidity is improved.
The PS resin is general transparent GPPS, and the transparency is 90-92%. The higher the transparency is, the more energy is transferred by ultrasonic welding, and meanwhile, the PS resin can further improve the fluidity of the alloy resin and improve the welding strength.
The compatilizer comprises one or two of a maleic anhydride grafted styrene-butadiene-styrene block copolymer (SBS-MAH) and a maleic anhydride grafted hydrogenated styrene-butadiene-styrene block copolymer (SEBS-MAH). Other compatibilizers (e.g., PP-MAH) have poor compatibility with PPO/PS. The amino in the PPO1 and the maleic anhydride in the compatilizer react further in the welding process, and when certain welding pressure is applied, the cross-linking reaction is continued, so that the welding strength is improved.
The black master batch is carbon black master batch taking polycarbonate as a carrier, and when in ultrasonic welding, the carbon black can absorb a large amount of heat, and after absorbing the heat, the melting state is better, the bonding between two interfaces is more facilitated, and the improvement of welding strength is more facilitated. If the master batch is not prepared, the problem of uneven dispersion is caused, the uneven absorption energy can be caused, and when welding is carried out, the uneven absorption energy can cause inconsistent welding strength at different positions. And a large amount of heat is absorbed, so that the reaction of amino and hydroxyl with maleic anhydride in the compatilizer is accelerated, the crosslinking reaction is more thorough, and the welding strength is improved.
The other auxiliary agents comprise 5-15 parts of toughening agent, 0.1-1 part of antioxidant and 0.1-1 part of lubricant.
The toughening agent comprises one or more of styrene-butadiene-styrene block copolymer (SBS) and hydrogenated SBS (SEBS).
The antioxidant comprises hindered classified antioxidants or phosphite antioxidants, such as one or more of commercially available antioxidants 1076, 168, 245 and 1010.
The lubricant comprises one or more of pentaerythritol ester, silicone powder and ethylene bis-stearamide.
The invention also provides a preparation method of the PPO/HIPS alloy with high ultrasonic welding strength, which comprises the following steps:
(1) Weighing the raw materials according to the proportion, and placing the raw materials into a high-speed mixer for stirring, and uniformly mixing;
(2) And (3) feeding the alloy into a double-screw extruder through a metering device, carrying out melt extrusion, cooling and granulating to obtain the PPO/HIPS alloy with high ultrasonic welding strength.
In the step (2), the temperatures from the feed inlet to the die of the twin-screw extruder are respectively set as follows: the 1-2 area is 1801220 ℃, the 3-5 area is 2301250 ℃, the 6-10 area is 2401270 ℃, the materials are melted and compounded under the conditions of conveying, shearing and mixing of the screw, and the screw rotating speed is 400-600r/min.
Compared with the prior art, the invention has the following beneficial effects:
(1) According to the invention, by adding the amino-functionalized PPO resin, a large amount of heat is released in the ultrasonic welding process, so that two plastic contact surfaces to be welded are quickly melted, after a certain pressure is applied, the amino in the PPO at the interface and maleic anhydride in the compatilizer undergo a crosslinking reaction (the radical is incompletely reacted when a welding piece is prepared), the interface bonding strength is increased, and the effect of improving the welding strength of the piece is achieved.
(2) In addition, the carbon black color master batch taking the polycarbonate as a carrier is added, so that the carbon black can absorb a large amount of heat during ultrasonic welding, and a large amount of terminal hydroxyl groups exist in the polycarbonate, so that the reaction further occurs during the welding process, and when the polycarbonate is subjected to a certain pressure, the polycarbonate reacts with maleic anhydride in a compatilizer, so that the ultrasonic welding strength between workpieces is further improved.
(3) The PPO/HIPS alloy with high ultrasonic welding strength is very suitable for a dust collector inner water separator with a relatively weak structure.
Detailed Description
The present invention will be described in detail with reference to specific examples. The following examples, which are presented to provide those of ordinary skill in the art with a detailed description of the invention and to provide a further understanding of the invention, are presented in terms of implementation and operation. It should be noted that the protection scope of the present invention is not limited to the following embodiments, and several adjustments and improvements made on the premise of the inventive concept are all within the protection scope of the present invention.
Examples and comparative examples of the present invention
Polyphenylene ether resin 1 was provided by Sichuan Dong material technology (refer to example 1 of the preparation method of an aminated polyphenylene ether in the patent, CN 201110444346.7), and was used directly;
the polyphenyl ether resin 2 is blue star chemical LXR035;
the PS resin is Saike 123P;
the toughening agent is Jinhu K-9151;
the compatilizer is KRATON SEBS 1901;
the antioxidant is Ciba1076, 168;
the lubricant is LOXIOL P-861;
the black matrix is ticket P121.
Example 1
A PPO/HIPS alloy with high ultrasonic welding strength and a method for preparing the same, the method comprising the steps of:
(1) Weighing the components according to the weight:
(2) The raw materials are placed in a high-speed mixer according to the proportion for stirring, the mixture is fed into a double-screw extruder through a metering device after being uniformly mixed, and the temperatures from a feed inlet to a die of the double-screw extruder are respectively set as follows: the 1-2 area is 1801220 ℃, the 3-5 area is 2301250 ℃, the 6-10 area is 2401270 ℃, materials are melted and compounded under the conditions of conveying, shearing and mixing of a screw, and the materials are melted and extruded under the condition of the rotating speed of the screw 600, cooled and granulated, so that the PPO/HIPS alloy with high ultrasonic welding strength is obtained.
Example 2
A PPO/HIPS alloy with high ultrasonic welding strength and a method for preparing the same, the method comprising the steps of:
(1) Weighing the components according to the weight:
(2) The raw materials are placed in a high-speed mixer according to the proportion for stirring, the mixture is fed into a double-screw extruder through a metering device after being uniformly mixed, and the temperatures from a feed inlet to a die of the double-screw extruder are respectively set as follows: the 1-2 area is 1801220 ℃, the 3-5 area is 2301250 ℃, the 6-10 area is 2401270 ℃, materials are melted and compounded under the conditions of conveying, shearing and mixing of a screw, and the materials are melted and extruded under the condition of the rotating speed of the screw 600, cooled and granulated, so that the PPO/HIPS alloy with high ultrasonic welding strength is obtained.
Example 3
A PPO/HIPS alloy with high ultrasonic welding strength and a method for preparing the same, the method comprising the steps of:
(1) Weighing the components according to the weight:
(2) The raw materials are placed in a high-speed mixer according to the proportion for stirring, the mixture is fed into a double-screw extruder through a metering device after being uniformly mixed, and the temperatures from a feed inlet to a die of the double-screw extruder are respectively set as follows: the 1-2 area is 1801220 ℃, the 3-5 area is 2301250 ℃, the 6-10 area is 2401270 ℃, materials are melted and compounded under the conditions of conveying, shearing and mixing of a screw, and the materials are melted and extruded under the condition of the rotating speed of the screw 600, cooled and granulated, so that the PPO/HIPS alloy with high ultrasonic welding strength is obtained.
Example 4
A PPO/HIPS alloy with high ultrasonic welding strength and a method for preparing the same, the method comprising the steps of:
(1) Weighing the components according to the weight:
(2) The raw materials are placed in a high-speed mixer according to the proportion for stirring, the mixture is fed into a double-screw extruder through a metering device after being uniformly mixed, and the temperatures from a feed inlet to a die of the double-screw extruder are respectively set as follows: the 1-2 area is 1801220 ℃, the 3-5 area is 2301250 ℃, the 6-10 area is 2401270 ℃, materials are melted and compounded under the conditions of conveying, shearing and mixing of a screw, and the materials are melted and extruded under the condition of the rotating speed of the screw 600, cooled and granulated, so that the PPO/HIPS alloy with high ultrasonic welding strength is obtained.
Example 5
A PPO/HIPS alloy with high ultrasonic welding strength and a method for preparing the same, the method comprising the steps of:
(1) Weighing the components according to the weight:
(2) The raw materials are placed in a high-speed mixer according to the proportion for stirring, the mixture is fed into a double-screw extruder through a metering device after being uniformly mixed, and the temperatures from a feed inlet to a die of the double-screw extruder are respectively set as follows: the 1-2 area is 1801220 ℃, the 3-5 area is 2301250 ℃, the 6-10 area is 2401270 ℃, materials are melted and compounded under the conditions of conveying, shearing and mixing of a screw, and the materials are melted and extruded under the condition of the rotating speed of the screw 600, cooled and granulated, so that the PPO/HIPS alloy with high ultrasonic welding strength is obtained.
Example 6
A PPO/HIPS alloy with high ultrasonic welding strength and a method for preparing the same, the method comprising the steps of:
(1) Weighing the components according to the weight:
(2) The raw materials are placed in a high-speed mixer according to the proportion for stirring, the mixture is fed into a double-screw extruder through a metering device after being uniformly mixed, and the temperatures from a feed inlet to a die of the double-screw extruder are respectively set as follows: the 1-2 area is 1801220 ℃, the 3-5 area is 2301250 ℃, the 6-10 area is 2401270 ℃, materials are melted and compounded under the conditions of conveying, shearing and mixing of a screw, and the materials are melted and extruded under the condition of the rotating speed of the screw 600, cooled and granulated, so that the PPO/HIPS alloy with high ultrasonic welding strength is obtained.
Comparative example 1
A PPO/HIPS alloy and a method for its preparation, the method comprising the steps of:
(1) Weighing the components according to the weight:
(2) The raw materials are placed in a high-speed mixer according to the proportion for stirring, the mixture is fed into a double-screw extruder through a metering device after being uniformly mixed, and the temperatures from a feed inlet to a die of the double-screw extruder are respectively set as follows: the 1-2 area is 1801220 ℃, the 3-5 area is 2301250 ℃, the 6-10 area is 2401270 ℃, materials are melted and compounded under the conditions of conveying, shearing and mixing of a screw, and the melting extrusion, cooling and granulating are carried out under the condition of 600 rotating speeds of the screw, so that the PPO/HIPS alloy is obtained.
Comparative example 2
A PPO/HIPS alloy and a method for its preparation, the method comprising the steps of:
(1) Weighing the components according to the weight:
(2) The raw materials are placed in a high-speed mixer according to the proportion for stirring, the mixture is fed into a double-screw extruder through a metering device after being uniformly mixed, and the temperatures from a feed inlet to a die of the double-screw extruder are respectively set as follows: the 1-2 area is 1801220 ℃, the 3-5 area is 2301250 ℃, the 6-10 area is 2401270 ℃, materials are melted and compounded under the conditions of conveying, shearing and mixing of a screw, and the melting extrusion, cooling and granulating are carried out under the condition of 600 rotating speeds of the screw, so that the PPO/HIPS alloy is obtained.
Comparative example 3
A PPO/HIPS alloy and a method for its preparation, the method comprising the steps of:
(1) Weighing the components according to the weight:
(2) The raw materials are placed in a high-speed mixer according to the proportion for stirring, the mixture is fed into a double-screw extruder through a metering device after being uniformly mixed, and the temperatures from a feed inlet to a die of the double-screw extruder are respectively set as follows: the 1-2 area is 1801220 ℃, the 3-5 area is 2301250 ℃, the 6-10 area is 2401270 ℃, materials are melted and compounded under the conditions of conveying, shearing and mixing of a screw, and the melting extrusion, cooling and granulating are carried out under the condition of 600 rotating speeds of the screw, so that the PPO/HIPS alloy is obtained.
Comparative example 4
A PPO/HIPS alloy and a method for producing the same are substantially the same as in the examples except that a PS resin is not added.
Each component of each example and comparative example is shown in Table 1
TABLE 1
The above examples were tested for performance according to the table 2 standard:
TABLE 2
Remarks 1: the materials of examples 1 to 6 and comparative examples 1 to 4 were injection-molded into ultrasonic welding bars, then subjected to ultrasonic welding experiments (welding time 0.8s, dwell time 0.4s, extension time 0.4 s), cooled for 24 hours, and then subjected to tensile strength test according to GB/T1040 standard and data recorded.
And the properties of the products obtained for each example are shown in Table 3:
TABLE 3 Table 3
The ultrasonic welding strength of comparative examples 1, 4, and 5 and comparative example 1 revealed that the greater the welding strength as the content of the amino-functionalized polyphenylene ether resin was increased; the test results of comparative examples 1-3 and comparative example 3 can be seen: with the increase of the content of the compatilizer, the initial impact strength is higher, the ultrasonic welding strength is also higher, when the content exceeds 5%, the welding strength is not obviously improved, and the maleic anhydride and the amino group are possibly completely reacted, and the content of the compatilizer is continuously improved, so that the improvement is not obvious; the experimental results of comparative example 2 and comparative example 2 revealed that: the ultrasonic welding strength of the black matrix is obviously improved; the PPO/HIPS alloy with high ultrasonic welding strength is very suitable for the internal water separator of a dust collector with relatively weak structure.
The above description has been made in detail of a method for preparing a PPO/HIPS alloy with high ultrasonic welding strength, and specific examples are applied to illustrate the principles and implementation of the present invention, and it will be apparent to those skilled in the art that many modifications are possible without departing from the principles of the invention, and these modifications are also considered to be within the scope of the invention.
Claims (10)
1. The PPO/HIPS alloy with high ultrasonic welding strength is characterized by comprising the following raw materials in parts by weight:
2. the PPO/HIPS alloy of claim 1, wherein the polyphenylene ether resin 1 is an amino-functionalized polyphenylene ether resin.
3. The PPO/HIPS alloy of claim 1, wherein the polyphenylene ether resin 2 is a general purpose polyphenylene ether resin having a viscosity of 30-50cm 3 /g。
4. The PPO/HIPS alloy of claim 1, wherein the PS resin is a general purpose transparent GPPS with a transparency of 90-92%.
5. The PPO/HIPS alloy of claim 1, wherein the compatibilizing agent comprises one or both of a maleic anhydride grafted styrene-butadiene-styrene block copolymer, a maleic anhydride grafted hydrogenated styrene-butadiene-styrene block copolymer.
6. The PPO/HIPS alloy of claim 1, wherein the black matrix is a polycarbonate-supported carbon black matrix.
7. The PPO/HIPS alloy of claim 1, wherein the other auxiliary agents comprise 5-15 parts of toughening agent, 0.1-1 part of antioxidant, 0.1-1 part of lubricant.
8. The PPO/HIPS alloy of claim 7, wherein the toughening agent comprises one or more of styrene-butadiene-styrene block copolymer, hydrogenated SBS; the antioxidant comprises one or more of hindered classified antioxidants and phosphite antioxidants, and specifically comprises one or more of antioxidants 1076, 168, 245 and 1010; the lubricant comprises one or more of pentaerythritol ester, silicone powder and ethylene bis stearamide.
9. A method of preparing the PPO/HIPS alloy of claim 1, comprising the steps of:
(1) Weighing the raw materials according to the proportion, stirring and uniformly mixing;
(2) And (3) feeding the alloy into a double-screw extruder through a metering device, carrying out melt extrusion, cooling and granulating to obtain the PPO/HIPS alloy with high ultrasonic welding strength.
10. The production method according to claim 9, wherein in the step (2), the temperatures of the twin-screw extruder from the feed port to the die are respectively set as: the 1-2 area is 1801220 ℃, the 3-5 area is 2301250 ℃, the 6-10 area is 2401270 ℃, and the screw rotating speed is 400-600r/min.
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| CN202310669501.8A CN116535840A (en) | 2023-06-07 | 2023-06-07 | PPO/HIPS alloy with high ultrasonic welding strength and preparation method thereof |
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| CN202310669501.8A CN116535840A (en) | 2023-06-07 | 2023-06-07 | PPO/HIPS alloy with high ultrasonic welding strength and preparation method thereof |
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