CN115403895A - High-heat-resistance modified ABS material and preparation method thereof - Google Patents

High-heat-resistance modified ABS material and preparation method thereof Download PDF

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Publication number
CN115403895A
CN115403895A CN202211204335.6A CN202211204335A CN115403895A CN 115403895 A CN115403895 A CN 115403895A CN 202211204335 A CN202211204335 A CN 202211204335A CN 115403895 A CN115403895 A CN 115403895A
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China
Prior art keywords
heat
resistant
abs material
parts
resin
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CN202211204335.6A
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Chinese (zh)
Inventor
郭超
孙启香
吴家安
张益�
吕中好
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Hefei Ruisong New Material Technology Co ltd
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Hefei Ruisong New Material Technology Co ltd
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Priority to CN202211204335.6A priority Critical patent/CN115403895A/en
Publication of CN115403895A publication Critical patent/CN115403895A/en
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    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L55/00Compositions of homopolymers or copolymers, obtained by polymerisation reactions only involving carbon-to-carbon unsaturated bonds, not provided for in groups C08L23/00 - C08L53/00
    • C08L55/02ABS [Acrylonitrile-Butadiene-Styrene] polymers
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2201/00Properties
    • C08L2201/08Stabilised against heat, light or radiation or oxydation

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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)

Abstract

The invention discloses a high heat-resistant modified ABS material and a preparation method thereof, belonging to the technical field of modification of high polymer materials, the high heat-resistant modified ABS material is prepared from 55-60 parts of ABS resin, 5-15 parts of heat-resistant agent, 10-15 parts of high rubber powder, 5-10 parts of ultrafine mica powder, 5-10 parts of low-molecular-weight SAN resin, 0.1-0.2 part of antioxidant, 0.1-0.2 part of lubricant and 1-2 parts of heat-resistant agent dispersant in parts by weight.

Description

High-heat-resistance modified ABS material and preparation method thereof
Technical Field
The invention relates to the technical field of modification of high polymer materials, in particular to a high heat-resistant modified ABS material and a preparation method thereof.
Background
ABS (acrylonitrile-butadiene-styrene) resin is an important synthetic resin, and it is of particular importance as a joint between general-purpose synthetic resins and engineering plastics. Generally, ABS resins are composed of more than 50% styrene, which provides hardness and easy processability, and variable amounts of butadiene, which provides chemical resistance and thermal stability, and acrylonitrile, which provides toughness and impact strength. Therefore, the ABS resin has the characteristics of high impact strength, good heat resistance and low temperature resistance and the like, is easy to process, and is widely applied to the fields of automobile parts, electronic and electric appliances, cultural and educational products, living goods, industrial parts and the like.
At present, the ABS resin has higher requirements on the performance of materials in the field of automobiles, and the common ABS resin is commonly used for passenger car materials, particularly exterior materials, and needs to meet the requirements of China and host factories on the molding cycle, the injection molding strength and the material percent of pass of the automobile materials.
In order to meet the requirements of materials in the field of automobiles, a heat-resistant agent is added into a heat-resistant ABS material so as to improve the heat-resistant performance of the material, but because the heat-resistant agent is a rigid molecule, the heat-resistant agent is usually not uniformly dispersed in the ABS resin, so that the heat-resistant agent is not uniformly dispersed due to poor plasticization, and the spraying is poor.
Disclosure of Invention
The invention aims to provide a high heat-resistant modified ABS material and a preparation method thereof, and aims to solve the problems that in order to meet the material requirements in the field of automobiles, a heat-resistant agent is added in the heat-resistant ABS material so as to improve the heat-resistant performance of the material, but the heat-resistant agent is rigid molecules, so that the heat-resistant agent is usually not uniformly dispersed in ABS resin, and the dispersion is not uniform due to poor plasticization, so that the spraying is poor.
In order to achieve the purpose, the invention provides the following technical scheme: the high heat-resistant modified ABS material is prepared from 55-60 parts of ABS resin, 5-15 parts of heat-resistant agent, 10-15 parts of high rubber powder, 5-10 parts of superfine mica powder, 5-10 parts of low-molecular-weight SAN resin, 0.1-0.2 part of antioxidant, 0.1-0.2 part of lubricant and 1-2 parts of heat-resistant agent dispersant in parts by weight, wherein the molecular weight of the low-molecular-weight SAN resin is 5-10 ten thousand.
Preferably, the ABS resin is prepared by an emulsion method, and the melt flow rate of the ABS resin is 15-22g/10min under the conditions of 220 ℃ and 10 kg.
Preferably, the heat-resistant agent is selected from N-methylmaleimide or a styrene-maleic anhydride copolymer.
Preferably, the high rubber powder is butadiene rubber, and the rubber content of the high rubber powder is 50-60%.
Preferably, the low molecular weight SAN resin is SAN resin with AN content of 15-19%.
Preferably, the antioxidant is selected from hindered phenolic antioxidants, phosphites or hindered amine antioxidants.
Preferably, the lubricant is at least one selected from pentaerythritol stearate, N-ethylene bis-stearamide, oxidized polyethylene wax, PLA polylactic acid, amide wax, butyl stearate.
Preferably, the heat-resistant dispersing agent is plant-extracted highly-concentrated reaction type resin MS-NIP.
A preparation method of a high heat-resistant modified ABS material comprises the following steps:
s1: fully mixing ABS resin, heat-resistant agent, high rubber powder, low molecular weight SAN resin, antioxidant, lubricant and heat-resistant agent dispersant according to the proportion;
s2: and adding the uniformly mixed materials into a double-screw extruder, and carrying out melting, extrusion, cooling, air drying and grain cutting to obtain the heat-resistant ABS material.
Preferably, the processing temperature of the double-screw extruder is 250-265 ℃ and the rotating speed is 450r/min.
Compared with the prior art, the invention has the beneficial effects that: according to the high-heat-resistance modified ABS material, the low-molecular-weight SAN resin with low AN content is added into AN ABS resin system to improve the fluidity and compatibility of the heat-resistance ABS material, and the melt can quickly pass through a cavity of a die by increasing the fluidity of the heat-resistance ABS material, so that the stress of a molded part is reduced, the spraying qualification rate of the heat-resistance ABS material is increased, and the surface of the heat-resistance ABS material is smooth and has no defects such as pits and pits.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. 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.
The invention provides a high heat-resistant modified ABS material, which is prepared from 55-60 parts of ABS resin, 5-15 parts of heat-resistant agent, 10-15 parts of high-glue powder, 5-10 parts of superfine mica powder, 5-10 parts of low-molecular-weight SAN resin, 0.1-0.2 part of antioxidant, 0.1-0.2 part of lubricant and 1-2 parts of heat-resistant agent dispersant by weight, wherein the molecular weight of the low-molecular-weight SAN resin is 5-10 ten thousand, the low-molecular-weight SAN resin with low AN content is added into the ABS resin system to improve the flowability and compatibility of the ABS material, the melt can rapidly pass through a cavity of a mold, so that the stress of a molded part is reduced, the qualified rate of the spraying of the heat-resistant ABS material is increased, and the surface of the molded part is smooth, and has no defects such as pits, and the like;
the preparation method and parameters of the ABS resin are not specifically limited, and can be adjusted according to needs, preferably, the ABS resin is prepared by an emulsion method, and the melt flow rate of the ABS resin is 10-20g/10min at 220 ℃ under 10 kg;
the heat-resistant agent is a heat-resistant agent which is conventionally adopted in the field, the heat-resistant agent is selected from N-methylmaleimide or styrene-maleic anhydride copolymer, the heat-resistant agent comprises but is not limited to the above, and any heat-resistant agent which can be used in ABS resin can be used in the invention;
the high rubber powder can be high rubber powder which is conventionally adopted in the field and used in an ABS resin system, the high rubber powder refers to butadiene rubber, and the content of the high rubber powder is 50-60%;
the low molecular weight SAN resin is SAN resin with AN content of 15-19%, preferably SAN resin with AN content of 17%;
the antioxidant and the lubricant may be selected from conventional antioxidants in the art, and are not particularly limited, and specifically, the antioxidant is selected from hindered phenol antioxidants, phosphite antioxidants, or hindered amine antioxidants;
the lubricant is at least one selected from pentaerythritol stearate, N-ethylene bis stearamide, oxidized polyethylene wax, PLA polylactic acid, amide wax and butyl stearate;
the heat-resistant dispersant is plant-extracted highly-concentrated reaction-type resin MS-NIP, such as electrochemical MS-NIP.
The invention also provides a preparation method of the high heat-resistant modified ABS material, which comprises the following steps:
after uniformly mixing the ABS resin, the heat-resistant agent, the high rubber powder, the low molecular weight SAN resin, the antioxidant, the lubricant and the heat-resistant agent dispersant according to the proportion, adding the uniformly mixed materials into a double-screw extruder, and carrying out melting, extruding, cooling, air drying and grain cutting to prepare the heat-resistant ABS material, wherein the sufficient mixing refers to the process of mechanically and uniformly mixing the raw materials, the adding sequence, the mixing mode, the time, the rotating speed and the like are not particularly limited as long as the uniform mixing can be realized, the processing temperature, the rotating speed and the like of the double-screw extruder can be adjusted according to different base resin and added auxiliaries, so the specific limitation is not required, the processing temperature of the double-screw extruder is 250-265 ℃, and the rotating speed is 450r/min.
Example 1
In this embodiment, the melt flow rate of the ABS resin is 15-25g/10min at 220 ℃/10kg, the ABS used in the resin is produced by emulsion method, the molecular weight of the low molecular SAN resin is 5-10 ten thousand, the heat resistant agent is N-methyl maleimide or styrene-maleic anhydride copolymer, the high rubber powder is butadiene rubber, the rubber content is 50-60%, the antioxidant is hindered phenol antioxidant, phosphite or hindered amine antioxidant, the lubricant is at least one selected from pentaerythritol stearate, N-hexamethylene bis-stearate, oxidized polyethylene wax, monoglyceride acid value, amide wax, butyl stearate, and the heat resistant dispersant: japanese electrochemical MS-NIP;
the preparation method of the high heat-resistant modified ABS material comprises the following steps: uniformly mixing 80 parts by weight of ABS resin, 10 parts by weight of N-methyl maleimide, 10 parts by weight of high rubber powder HR-181, 0.2 part by weight of hindered phenol antioxidant and 0.2 part by weight of lubricant pentaerythritol stearate, adding the uniformly mixed materials into a double-screw extruder, melting, extruding, cooling, air-drying and dicing to obtain a heat-resistant ABS material; wherein the double-screw extruder is in double vacuum, the vacuum degree is-0.10 MPa, and the processing temperature of the double-screw extruder is as follows: 235 ℃ in the first zone, 245 ℃ in the second zone, 255 ℃ in the third zone-the sixth zone, 245 ℃ in the seventh zone, 235 ℃ in the eighth zone, 245 ℃ in the machine table and 450 rpm in the rotating speed.
Example 2
In this embodiment, the melt flow rate of the ABS resin is 15-25g/10min at 220 ℃/10kg, the ABS used in the resin is produced by emulsion method, the molecular weight of the low molecular SAN resin is 5-10 ten thousand, the heat resistant agent is N-methyl maleimide or styrene-maleic anhydride copolymer, the high rubber powder is butadiene rubber, the rubber content is 50-60%, the antioxidant is hindered phenol antioxidant, phosphite or hindered amine antioxidant, the lubricant is at least one selected from pentaerythritol stearate, N-hexamethylene bis-stearate, oxidized polyethylene wax, monoglyceride acid value, amide wax, butyl stearate, and the heat resistant dispersant: japanese electrochemical MS-NIP;
the preparation method of the high heat-resistant modified ABS material comprises the following steps: uniformly mixing 70 parts of ABS resin, 10 parts of N-methyl maleimide, 10 parts of high rubber powder HR-181, 10 parts of low molecular weight SAN resin, 0.2 part of hindered phenol antioxidant and 0.2 part of lubricant pentaerythritol stearate according to parts by weight, adding the uniformly mixed materials into a double-screw extruder, melting, extruding, cooling, air-drying and dicing to obtain a heat-resistant ABS material; wherein the double-screw extruder is in double vacuum, the vacuum degree is-0.09 MPa, and the processing temperature of the double-screw extruder is as follows: 235 ℃ in the first zone, 245 ℃ in the second zone, 255 ℃ in the third zone-the sixth zone, 245 ℃ in the seventh zone and 235 ℃ in the eighth zone, 245 ℃ in the machine table and 450 rpm in the rotating speed.
While the invention has been described above with reference to an embodiment, various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention. In particular, the various features of the disclosed embodiments of this invention can be used in any combination with one another as long as no structural conflict exists, and the combination is not exhaustively described in this specification merely for the sake of brevity and resource savings. Therefore, it is intended that the invention not be limited to the particular embodiments disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.

Claims (10)

1. A high heat-resistant modified ABS material is characterized in that: the high heat-resistant modified ABS material is prepared from 55-60 parts of ABS resin, 5-15 parts of heat-resistant agent, 10-15 parts of high-glue powder, 5-10 parts of superfine mica powder, 5-10 parts of low-molecular-weight SAN resin, 0.1-0.2 part of antioxidant, 0.1-0.2 part of lubricant and 1-2 parts of heat-resistant agent dispersant in parts by weight, wherein the molecular weight of the low-molecular-weight SAN resin is 5-10 ten thousand.
2. The high heat-resistant modified ABS material as claimed in claim 1, wherein: the ABS resin is prepared by an emulsion method, and the melt flow rate of the ABS resin is 15-22g/10min at the temperature of 220 ℃ and under the condition of 10 kg.
3. The high heat resistance modified ABS material according to claim 2 wherein: the heat-resistant agent is selected from N-methyl maleimide or styrene-maleic anhydride copolymer.
4. The high heat resistance modified ABS material of claim 3 wherein: the high rubber powder is butadiene rubber, and the rubber content of the high rubber powder is 50-60%.
5. The high heat resistance modified ABS material according to claim 4, wherein: the low molecular weight SAN resin is SAN resin with AN content of 15-19%.
6. The high heat resistance modified ABS material according to claim 5, wherein: the antioxidant is selected from hindered phenol antioxidant, phosphite ester antioxidant or hindered amine antioxidant.
7. The high heat resistance modified ABS material according to claim 6 wherein: the lubricant is at least one selected from pentaerythritol stearate, N-ethylene bis stearamide, oxidized polyethylene wax, PLA polylactic acid, amide wax and butyl stearate.
8. The high heat resistance modified ABS material according to claim 7 wherein: the heat-resistant dispersing agent is reaction resin MS-NIP which is highly concentrated by plant extraction.
9. A method for preparing the high heat-resistant modified ABS material according to any one of claims 1-8, wherein: the preparation method of the high heat-resistant modified ABS material comprises the following steps:
s1: fully mixing ABS resin, heat-resistant agent, high rubber powder, low molecular weight SAN resin, antioxidant, lubricant and heat-resistant agent dispersant according to the proportion;
s2: and adding the uniformly mixed materials into a double-screw extruder, and carrying out melting, extrusion, cooling, air drying and grain cutting to obtain the heat-resistant ABS material.
10. The preparation method of the high heat-resistant modified ABS material as claimed in claim 9, wherein the method comprises the following steps: the processing temperature of the double-screw extruder is 250-265 ℃, and the rotating speed is 450r/min.
CN202211204335.6A 2022-09-29 2022-09-29 High-heat-resistance modified ABS material and preparation method thereof Withdrawn CN115403895A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202211204335.6A CN115403895A (en) 2022-09-29 2022-09-29 High-heat-resistance modified ABS material and preparation method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202211204335.6A CN115403895A (en) 2022-09-29 2022-09-29 High-heat-resistance modified ABS material and preparation method thereof

Publications (1)

Publication Number Publication Date
CN115403895A true CN115403895A (en) 2022-11-29

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Country Status (1)

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Application publication date: 20221129