CN113429733A - Light-transmitting ABS resin and preparation method thereof - Google Patents
Light-transmitting ABS resin and preparation method thereof Download PDFInfo
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- CN113429733A CN113429733A CN202110619145.XA CN202110619145A CN113429733A CN 113429733 A CN113429733 A CN 113429733A CN 202110619145 A CN202110619145 A CN 202110619145A CN 113429733 A CN113429733 A CN 113429733A
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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
- C08L55/00—Compositions of homopolymers or copolymers, obtained by polymerisation reactions only involving carbon-to-carbon unsaturated bonds, not provided for in groups C08L23/00 - C08L53/00
- C08L55/02—ABS [Acrylonitrile-Butadiene-Styrene] polymers
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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
- C08L2201/10—Transparent films; Clear coatings; Transparent materials
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Abstract
The invention discloses a light-transmitting ABS resin, which comprises the following raw materials in parts by weight: the light-transmitting ABS resin comprises linear low-density polyethylene, wherein the linear low-density polyethylene comprises linear molecules, so that the collapse resistance of the polymer can be effectively enhanced during extrusion, the mechanical property of the polymer can be further enhanced by matching with a toughening agent, the transparency is not reduced, the polymethyl methacrylate provides hardness and high gloss for the material, the linear low-density polyethylene is added to form transition, so that the refractive index is slowly transited, the atomization phenomenon does not occur in the material, and the high transparency is realized; the compatibility of two phase interfaces in the light-transmitting ABS resin can be promoted, and the refractive index of the blend is improved, so that the prepared ABS resin has higher light transmission.
Description
Technical Field
The invention relates to the technical field of high molecular compounds, in particular to a light-transmitting ABS resin and a preparation method thereof.
Background
ABS resin: the acrylonitrile-butadiene-styrene plastic with the chemical name is wide in source and low in price, has excellent impact resistance, low temperature resistance and chemical resistance, has excellent electrical performance, and has the characteristics of easiness in processing, stable product size and the like. However, the scratch resistance of ABS materials is poor, so that before ABS alloy materials are applied to terminal fields, most ABS materials need to be sprayed to obtain enough scratch resistance, the thickness of the ABS plastic coating is generally 15-20 micrometers, and the ABS plastic coating can be finished by spraying 2-3 times. And after the first spraying, drying the paint, and then performing second spraying. Surfaces requiring high gloss must also be sprayed with a clear coat. After coating, the coating can be dried at room temperature or baked at 60 ℃ for 30 min. These processes not only increase the processing cost of ABS alloy materials, but also the spraying process can be harmful to the health of workers and environmental protection. The processing technology of the spraying-free high-gloss ABS resin used in the current market is basically that the ABS resin is added with PMMA resin and compatilizer MBS, but the high-gloss ABS resin prepared by the technology has the following defects in the actual production: because free acrylonitrile in PMMA and ABS resin is incompatible, the PMMA resin and ABS resin have phase separation phenomenon on microscopic phase, so the alloy material is not a homogeneous system, color spots appear in an injection molding product after the material is dyed, the product yield is low when the material is subjected to injection molding, and a large amount of waste materials are generated in the actual production; because of the opacity of the ABS resin, the alloy material is not transparent, so that more toner or even dye with higher price is required to be added in the later dyeing process of the material to achieve the effects of bright and bright color, and the cost price of using the material is greatly increased.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides the light-transmitting ABS resin and the preparation method thereof, has the advantages of solving the problems.
(II) technical scheme
In order to achieve the purpose, the invention provides the following technical scheme: a light-transmitting ABS resin comprises the following raw materials in parts by weight: the low-density polyethylene adhesive comprises, by weight, 50-60 parts of ABS, 20-30 parts of polymethyl methacrylate, 5-15 parts of low-density polyethylene, 50-60 parts of SAN resin, 1-4 parts of an interfacial compatilizer, 1-3 parts of an organic silicon polymer auxiliary agent, 1-6 parts of a dispersing agent, 1-3 parts of a lubricating agent, 5-20 parts of a toughening agent and 1-6 parts of an antioxidant, wherein the low-density polyethylene is linear low-density polyethylene.
Preferably, the interfacial compatilizer is at least one of a mixed solvent of polydimethylsiloxane and toluene and an acrylate polymer, and the ratio of polydimethylsiloxane to toluene in the mixed solvent is 3: 1.
preferably, the organic silicon polymer additive is one of methyl silicone oil and amino silicone oil.
Preferably, the dispersant is ethylene bis stearamide dispersant, and the antioxidant is a multi-hindered phenol antioxidant.
Preferably, the lubricant is at least one of calcium stearate, paraffin wax, polyethylene wax and PETS.
Preferably, the toughening agent is at least one of MBS type toughening agent, ASA type toughening agent and EVA type toughening agent.
Another technical problem to be solved by the present invention is a method for preparing a light-transmitting ABS resin, comprising the steps of:
1) firstly, rinsing a double-screw extruder by polymethyl methacrylate;
2) then weighing ABS, polymethyl methacrylate, low-density polyethylene, SAN resin, an interfacial compatilizer, an organic silicon polymer auxiliary agent, a dispersing agent, a lubricating agent, a toughening agent and an antioxidant according to the formula, and putting the materials into a mixer to be stirred for 2-4 min;
3) and (3) conveying the mixture obtained in the step (2) into a double-screw extruder, controlling the temperature of each section of screw of the extruder to be between 190 ℃ and 230 ℃, and controlling the length-diameter ratio of the double-screw extruder to be 30-40: 1, the rotating speed of the screw is 300-750 rpm, the materials are fully melted and compounded under the shearing, mixing and conveying of the screw, and then the high-transparency flame-retardant ABS material is obtained after extrusion granulation and drying.
Preferably, the temperatures of the zones of the twin-screw extruder are as follows: the first zone is 190-.
(III) advantageous effects
Compared with the prior art, the invention provides the light-transmitting ABS resin and the preparation method thereof, and the light-transmitting ABS resin has the following beneficial effects:
1. according to the light-transmitting ABS resin and the preparation method thereof, linear low-density polyethylene contains linear molecules, so that the light-transmitting ABS resin has high elasticity, the collapse resistance of a polymer can be effectively enhanced during extrusion, the mechanical property of the polymer can be further enhanced by matching with a toughening agent, the transparency is not reduced, the hardness and the high gloss are provided for the material by polymethyl methacrylate, but the difference between the refractive property of the material and the refractive property of ABS is larger, so that the refractive index is slowly transited by adding the linear low-density polyethylene, and the atomization phenomenon does not occur in the interior, thereby realizing high transparency;
2. the light-transmitting ABS resin and the preparation method thereof can promote the compatibility of two phase interfaces in the light-transmitting ABS resin and improve the refractive index of the blend, so that the prepared ABS resin has higher light transmission.
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 first embodiment is as follows:
a light-transmitting ABS resin comprises the following raw materials in parts by weight: the adhesive is prepared from, by weight, 50 parts of ABS, 20 parts of polymethyl methacrylate, 5 parts of low-density polyethylene, 50 parts of SAN resin, 1 part of an interfacial compatilizer, 1 part of an organic silicon polymer auxiliary agent, 1 part of a dispersing agent, 1 part of a lubricating agent, 5 parts of a toughening agent, 1 part of an antioxidant, linear low-density polyethylene serving as low-density polyethylene, a mixed solvent of polydimethylsiloxane and toluene serving as the interfacial compatilizer, and the ratio of polydimethylsiloxane to toluene in the mixed solvent is 3: 1, the organic silicon polymer auxiliary agent is amino silicone oil, the dispersing agent is ethylene bis stearamide dispersing agent, the antioxidant is multi-element hindered phenol antioxidant, the lubricating agent is polyethylene wax, and the toughening agent is EVA type toughening agent;
a preparation method of a light-transmitting ABS resin comprises the following steps:
1) firstly, rinsing a double-screw extruder by polymethyl methacrylate;
2) then weighing ABS, polymethyl methacrylate, low-density polyethylene, SAN resin, an interface compatilizer, an organic silicon polymer auxiliary agent, a dispersing agent, a lubricant, a toughening agent and an antioxidant according to a formula, putting the weighed materials into a mixer together, and stirring for 2min, wherein the light-transmitting ABS resin and the preparation method thereof comprise linear molecules through linear low-density polyethylene, have high elasticity, can effectively enhance the collapse resistance of a polymer during extrusion, can further enhance the mechanical property of the polymer by matching with the toughening agent, do not reduce the transparency, provide hardness and high gloss for the material through polymethyl methacrylate, but have larger difference with ABS in refractive property, so that the refractive index is slowly transited by adding the linear low-density polyethylene, and the atomization phenomenon does not occur in the material, thereby realizing high transparency;
3) conveying the mixture obtained in the step 2 into a double-screw extruder, wherein the temperature of each section of screw of the extruder is controlled to be 190 ℃, and the temperature of each zone of the double-screw extruder is as follows: 190 ℃ in the first zone, 200 ℃ in the second zone, 200 ℃ in the third zone, 200 ℃ in the fourth zone, 200 ℃ in the fifth zone, 200 ℃ in the sixth zone, 200 ℃ in the seventh zone, 200 ℃ in the eighth zone, 200 ℃ in the ninth zone, 200 ℃ in the head, and the length-diameter ratio of the twin-screw extruder is 30: 1, the rotating speed of the screw is 300 r/min, materials can be fully melted and compounded under the shearing, mixing and conveying of the screw, and then the high-transparency flame-retardant ABS material is obtained through extrusion granulation and drying.
Example two:
a light-transmitting ABS resin comprises the following raw materials in parts by weight: the high-performance polyurethane elastomer comprises, by weight, 53 parts of ABS, 20 parts of polymethyl methacrylate, 8 parts of low-density polyethylene, 54 parts of SAN resin, 1 part of an interface compatilizer, 2 parts of an organic silicon high-molecular auxiliary agent, 2 parts of a dispersing agent, 1 part of a lubricating agent, 15 parts of a toughening agent, 1-6 parts of an antioxidant, wherein the low-density polyethylene is linear low-density polyethylene, the interface compatilizer is an acrylate polymer, the organic silicon high-molecular auxiliary agent is amino silicone oil, the dispersing agent is an ethylene bis-stearamide dispersing agent, the antioxidant is a multi-hindered phenol type antioxidant, the lubricating agent is paraffin, and the toughening agent is an ASA type toughening agent;
a preparation method of a light-transmitting ABS resin comprises the following steps:
1) firstly, rinsing a double-screw extruder by polymethyl methacrylate;
2) then weighing ABS, polymethyl methacrylate, low-density polyethylene, SAN resin, an interface compatilizer, an organic silicon polymer auxiliary agent, a dispersing agent, a lubricant, a toughening agent and an antioxidant according to a formula, putting the weighed materials into a mixer together, and stirring for 4min, wherein the light-transmitting ABS resin and the preparation method thereof comprise linear molecules through linear low-density polyethylene, have high elasticity, can effectively enhance the collapse resistance of a polymer during extrusion, can further enhance the mechanical property of the polymer by matching with the toughening agent, do not reduce the transparency, provide hardness and high gloss for the material through polymethyl methacrylate, but have larger difference with ABS in refractive property, so that the refractive index is slowly transited by adding the linear low-density polyethylene, and the atomization phenomenon does not occur in the material, thereby realizing high transparency;
3) conveying the mixture obtained in the step 2 into a double-screw extruder, wherein the temperature of each section of screw of the extruder is controlled to be 220 ℃, and the temperature of each zone of the double-screw extruder is as follows: 200 ℃ in the first zone, 210 ℃ in the second zone, 210 ℃ in the third zone, 210 ℃ in the fourth zone, 210 ℃ in the fifth zone, 210 ℃ in the sixth zone, 210 ℃ in the seventh zone, 210 ℃ in the eighth zone, 210 ℃ in the ninth zone, 210 ℃ in the head, and the length-diameter ratio of the twin-screw extruder is 35: 1, the rotating speed of the screw is 500 r/min, materials can be fully melted and compounded under the shearing, mixing and conveying of the screw, and then the high-transparency flame-retardant ABS material is obtained through extrusion granulation and drying.
Example three:
a light-transmitting ABS resin comprises the following raw materials in parts by weight: 55 parts of ABS, 25 parts of polymethyl methacrylate, 5 parts of low-density polyethylene, 55 parts of SAN resin, 1 part of interfacial compatilizer, 2 parts of organic silicon polymer additive, 3 parts of dispersing agent, 2 parts of lubricating agent, 10 parts of toughening agent, 3 parts of antioxidant, wherein the low-density polyethylene is linear low-density polyethylene, the interfacial compatilizer is a mixed solvent of polydimethylsiloxane and toluene, and the ratio of polydimethylsiloxane to toluene in the mixed solvent is 3: 1, the organic silicon polymer auxiliary agent is methyl silicone oil, the dispersing agent is ethylene bis stearamide dispersing agent, the antioxidant is multi-element hindered phenol antioxidant, the lubricating agent is PETS, and the toughening agent is MBS type toughening agent;
a preparation method of a light-transmitting ABS resin comprises the following steps:
1) firstly, rinsing a double-screw extruder by polymethyl methacrylate;
2) then weighing ABS, polymethyl methacrylate, low-density polyethylene, SAN resin, an interface compatilizer, an organic silicon polymer auxiliary agent, a dispersing agent, a lubricant, a toughening agent and an antioxidant according to a formula, putting the weighed materials into a mixer together, and stirring for 3min, wherein the light-transmitting ABS resin and the preparation method thereof comprise linear molecules through linear low-density polyethylene, have high elasticity, can effectively enhance the collapse resistance of a polymer during extrusion, can further enhance the mechanical property of the polymer by matching with the toughening agent, do not reduce the transparency, provide hardness and high gloss for the material through polymethyl methacrylate, but have larger difference with ABS in refractive property, so that the refractive index is slowly transited by adding the linear low-density polyethylene, and the atomization phenomenon does not occur in the material, thereby realizing high transparency;
3) conveying the mixture obtained in the step 2 into a double-screw extruder, wherein the temperature of each section of screw of the extruder is controlled to be 190 ℃, and the temperature of each zone of the double-screw extruder is as follows: 190 ℃ in the first zone, 200 ℃ in the second zone, 200 ℃ in the third zone, 200 ℃ in the fourth zone, 200 ℃ in the fifth zone, 200 ℃ in the sixth zone, 200 ℃ in the seventh zone, 200 ℃ in the eighth zone, 200 ℃ in the ninth zone, 200 ℃ in the head, and the length-diameter ratio of the twin-screw extruder is 35: 1, the rotating speed of the screw is 700 revolutions per minute, the materials can be fully melted and compounded under the shearing, mixing and conveying of the screw, and then the high-transparency flame-retardant ABS material is obtained through extrusion granulation and drying.
Experimental example four:
a light-transmitting ABS resin comprises the following raw materials in parts by weight: the adhesive is prepared from 60 parts of ABS, 30 parts of polymethyl methacrylate, 15 parts of low-density polyethylene, 60 parts of SAN resin, 4 parts of interfacial compatilizer, 3 parts of organic silicon polymer additive, 6 parts of dispersing agent, 3 parts of lubricating agent, 20 parts of toughening agent, 6 parts of antioxidant, linear low-density polyethylene serving as low-density polyethylene, mixed solvent of polydimethylsiloxane and toluene serving as interfacial compatilizer, and the ratio of polydimethylsiloxane to toluene in the mixed solvent is 3: 1, the organic silicon polymer auxiliary agent is amino silicone oil, the dispersing agent is ethylene bis stearamide dispersing agent, the antioxidant is multi-element hindered phenol antioxidant, the lubricating agent is calcium stearate, and the toughening agent is MBS type toughening agent;
a preparation method of a light-transmitting ABS resin comprises the following steps:
1) firstly, rinsing a double-screw extruder by polymethyl methacrylate;
2) then weighing ABS, polymethyl methacrylate, low-density polyethylene, SAN resin, an interface compatilizer, an organic silicon polymer auxiliary agent, a dispersing agent, a lubricant, a toughening agent and an antioxidant according to a formula, putting the weighed materials into a mixer together, and stirring for 4min, wherein the light-transmitting ABS resin and the preparation method thereof comprise linear molecules through linear low-density polyethylene, have high elasticity, can effectively enhance the collapse resistance of a polymer during extrusion, can further enhance the mechanical property of the polymer by matching with the toughening agent, do not reduce the transparency, provide hardness and high gloss for the material through polymethyl methacrylate, but have larger difference with ABS in refractive property, so that the refractive index is slowly transited by adding the linear low-density polyethylene, and the atomization phenomenon does not occur in the material, thereby realizing high transparency;
3) conveying the mixture obtained in the step 2 into a double-screw extruder, wherein the temperature of each section of screw of the extruder is controlled to be 230 ℃, and the temperature of each zone of the double-screw extruder is as follows: first zone 200 ℃, second zone 220 ℃, third zone 220 ℃, fourth zone 220 ℃, fifth zone 220 ℃, sixth zone 220 ℃, seventh zone 220 ℃, eighth zone 220 ℃, ninth zone 220 ℃, head 210 ℃, and the length-diameter ratio of the twin-screw extruder is 40: 1, the rotating speed of the screw is 750 revolutions per minute, the materials can be fully melted and compounded under the shearing, mixing and conveying of the screw, and then the high-transparency flame-retardant ABS material is obtained through extrusion granulation and drying.
The invention has the beneficial effects that: according to the light-transmitting ABS resin and the preparation method thereof, linear low-density polyethylene contains linear molecules, so that the light-transmitting ABS resin has high elasticity, the collapse resistance of a polymer can be effectively enhanced during extrusion, the mechanical property of the polymer can be further enhanced by matching with a toughening agent, the transparency is not reduced, the hardness and the high gloss are provided for the material by polymethyl methacrylate, but the difference between the refractive property of the material and the refractive property of ABS is larger, so that the refractive index is slowly transited by adding the linear low-density polyethylene, and the atomization phenomenon does not occur in the interior, thereby realizing high transparency; the compatibility of two phase interfaces in the light-transmitting ABS resin can be promoted, and the refractive index of the blend is improved, so that the prepared ABS resin has higher light transmission.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The light-transmitting ABS resin is characterized by comprising the following raw materials in parts by weight: the low-density polyethylene adhesive comprises, by weight, 50-60 parts of ABS, 20-30 parts of polymethyl methacrylate, 5-15 parts of low-density polyethylene, 50-60 parts of SAN resin, 1-4 parts of an interfacial compatilizer, 1-3 parts of an organic silicon polymer auxiliary agent, 1-6 parts of a dispersing agent, 1-3 parts of a lubricating agent, 5-20 parts of a toughening agent and 1-6 parts of an antioxidant, wherein the low-density polyethylene is linear low-density polyethylene.
2. The light-transmitting ABS resin according to claim 1, wherein the interfacial compatibilizer is at least one of a mixed solvent of polydimethylsiloxane and toluene and an acrylate polymer, and the ratio of polydimethylsiloxane to toluene in the mixed solvent is 3: 1.
3. the light-transmitting ABS resin according to claim 1, wherein the silicone polymer additive is one of methyl silicone oil and amino silicone oil.
4. The light-transmitting ABS resin according to claim 1, wherein the dispersant is an ethylene bis stearamide dispersant, and the antioxidant is a polyhydric hindered phenol type antioxidant.
5. The light-transmitting ABS resin according to claim 1, wherein the lubricant is at least one of calcium stearate, paraffin wax, polyethylene wax, and PETS.
6. The light-transmitting ABS resin of claim 1, wherein the toughening agent is at least one of MBS type toughening agent, ASA type toughening agent and EVA type toughening agent.
7. A method for producing a light transmitting ABS resin according to any one of claims 1 to 6, comprising the steps of:
1) firstly, rinsing a double-screw extruder by polymethyl methacrylate;
2) then weighing ABS, polymethyl methacrylate, low-density polyethylene, SAN resin, an interfacial compatilizer, an organic silicon polymer auxiliary agent, a dispersing agent, a lubricating agent, a toughening agent and an antioxidant according to the formula, and putting the materials into a mixer to be stirred for 2-4 min;
3) and (3) conveying the mixture obtained in the step (2) into a double-screw extruder, controlling the temperature of each section of screw of the extruder to be between 190 ℃ and 230 ℃, and controlling the length-diameter ratio of the double-screw extruder to be 30-40: 1, the rotating speed of the screw is 300-750 rpm, the materials are fully melted and compounded under the shearing, mixing and conveying of the screw, and then the high-transparency flame-retardant ABS material is obtained after extrusion granulation and drying.
8. The method for preparing a light-transmitting ABS resin according to claim 7, wherein the temperatures of the zones of the twin-screw extruder are as follows: the first zone is 190-.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115044162A (en) * | 2022-06-27 | 2022-09-13 | 安徽赤诚塑胶科技有限公司 | Production method of high-transparency ABS plastic masterbatch |
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| CN108530822A (en) * | 2018-04-29 | 2018-09-14 | 何凡 | A kind of high transparency ABS resin and preparation method thereof |
| CN109503972A (en) * | 2018-11-28 | 2019-03-22 | 磨长城 | Translucency ABS resin and preparation method thereof |
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| CN102532781A (en) * | 2010-12-07 | 2012-07-04 | 合肥杰事杰新材料股份有限公司 | High-luster scratching-resistant ABS (Acrylonitrile-Butadiene-Styrene) resin and preparation method thereof |
| CN102766306A (en) * | 2012-08-14 | 2012-11-07 | 龙甲（上海）实业有限公司 | Spraying-free high-transparent high-glossy acrylonitrile butadiene styrene (ABS) material and preparation method thereof |
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