CN113956604A - Reinforced modified ABS plastic and preparation method thereof - Google Patents
Reinforced modified ABS plastic and preparation method thereof Download PDFInfo
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- CN113956604A CN113956604A CN202111350836.0A CN202111350836A CN113956604A CN 113956604 A CN113956604 A CN 113956604A CN 202111350836 A CN202111350836 A CN 202111350836A CN 113956604 A CN113956604 A CN 113956604A
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
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- C08L55/02—ABS [Acrylonitrile-Butadiene-Styrene] polymers
Abstract
The invention discloses reinforced modified ABS plastic and a preparation method thereof, and the raw materials for preparing the reinforced modified ABS plastic comprise the following components in parts by weight: 100 parts of ABS resin, 22-44 parts of styrene-acrylonitrile copolymer, 1.5-2.5 parts of styrene maleic anhydride copolymer, 2.5-8.0 parts of modified carbon particles, 0.4-1.6 parts of high-adhesive ABS graft powder, 0.5-1.4 parts of ethylene bis stearamide, 1.2-3.5 parts of aluminum borate whisker, 1.0-1.6 parts of zinc stearate and 0.2-0.7 part of antioxidant. The reinforced modified ABS plastic prepared by the invention has the advantages of high strength, excellent impact resistance, simple preparation method, easy operation of preparation process, high economic benefit and suitability for industrial production.
Description
Technical Field
The invention relates to the technical field of high polymer materials, in particular to reinforced modified ABS plastic and a preparation method thereof.
Background
The ABS resin is a terpolymer formed by copolymerizing acrylonitrile, 1, 3-butadiene and styrene single-weight monomers, is a high polymer material between general plastics and engineering plastics, and has the characteristics of high strength, good toughness and easiness in processing and forming. Acrylonitrile in the ABS resin endows ABS with oil resistance and rigidity, butadiene endows ABS with toughness, and styrene offers performances such as processing fluidity, surface gloss, easy coloration, etc., and is used in industries such as car, household electrical appliances, electron, utensil, building materials, etc. extensively. The ABS plastic is often reinforced by adding fiber reinforcing agents, but inorganic fibers serving as discontinuous inorganic materials are poor in dispersion in resin and have no obvious effect of reinforcing the mechanical properties of the ABS plastic.
Chinese patent CN110256801A discloses a carbon fiber reinforced ABS plastic master batch, a preparation method and application thereof, which comprises 10-25 parts by weight of ABS80-110 parts by weight of polyether-polyamide block copolymer, 50-150 parts by weight of carbon fiber with the length of 1-5mm, wherein every 100 parts by weight of ABS contains 5-15 parts by weight of polymer microsphere, and the surface of the carbon fiber is modified by polyamide to form a coating layer. But the ABS plastic master batch of the patent has poor reinforcing effect on ABS plastic.
Disclosure of Invention
In view of the above, the present invention provides a reinforced modified ABS plastic and a preparation method thereof, so as to solve the above technical problems.
In order to achieve the purpose, the invention provides the following technical scheme: the reinforced modified ABS plastic is prepared from the following raw materials in parts by weight: 100 parts of ABS resin, 22-44 parts of styrene-acrylonitrile copolymer, 1.5-2.5 parts of styrene maleic anhydride copolymer, 2.5-8.0 parts of modified carbon particles, 0.4-1.6 parts of high-adhesive ABS graft powder, 0.5-1.4 parts of ethylene bis stearamide, 1.2-3.5 parts of aluminum borate whisker, 1.0-1.6 parts of zinc stearate and 0.2-0.7 part of antioxidant. The high-adhesive ABS graft powder is high-adhesive ABS graft powder PW-151 with a softening point of 80 ℃; the styrene maleic anhydride copolymer as the compatilizer can improve the compatibility of the inorganic filler and the ABS resin and improve the processing fluidity. The aluminum borate whisker has a diameter smaller than that of the fiber, the length and diameter of the whisker are closely related to the surface area bonded by the resin and the loading capacity of the composite material, the length of the aluminum borate whisker is 13 microns, the diameter of the aluminum borate whisker is 1.75 microns, and the density of the aluminum borate whisker is 2.83g/cm3(ii) a The aluminum borate whisker is fine and is distributed more uniformly in the resin matrix, so that the gaps of the material can be supplemented, and the strength of the composite material is more uniform.
Further, the technical parameters of the styrene-acrylonitrile copolymer are as follows: the number average molecular weight is 5.0～5.4×104The intrinsic viscosity is between 0.48dl/g and 0.56dl/g, and the melt index (220 ℃, 10kg) is between 38g/10min and 45g/10 min. The styrene-acrylonitrile copolymer is a polar polymer, has high compatibility with ABS resin, and can improve the flowability and processability of ABS when added into an ABS resin matrix.
Further, the acid value of the ethylene bis-stearamide is less than 7.0mgKOH/g, the color value is less than 5.0, and the total amine value is less than 3.0 mgKOH/g. The ethylene bis stearamide can improve the dispersibility of the modified carbon particles and the aluminum borate whiskers in the ABS resin and improve the flowability and the demolding property of a matrix.
Further, the preparation method of the modified carbon particles comprises the following steps: placing corn starch into a heating furnace, and carbonizing in a nitrogen atmosphere to obtain starch carbon; adding 60 parts of starch carbon and 15-32 parts of starch into 100 parts of water, adjusting the pH value to 8.5 by using sodium hydroxide, heating to 88-85 ℃, and keeping for 30 minutes to obtain a pretreatment mixed solution; adding 100 parts of cyclohexane solution of trichloromethane into tween at 45 ℃, and uniformly stirring and mixing to obtain a premixed solution; adding the pre-treatment mixed solution into the pre-mixed solution, stirring and mixing, adding 4-18 parts of liquid paraffin, controlling the temperature at 45 ℃, stirring and mixing for 4-6 hours, centrifuging, washing and drying to obtain starch powder; putting the starch powder into a heating furnace at 600 ℃ for treatment for 30 minutes to obtain carbon microspheres; and (3) putting the carbon microspheres into an ethanol solution of a silane coupling agent, stirring and mixing for 40-60 minutes, filtering, carrying out water-based neutralization, and drying to obtain the modified carbon particles. The invention takes starch as raw material, and improves the stability and compatibility of the starch in an organic phase by carbonizing the starch and coating and modifying the surface of the starch, thereby not only replacing filling materials such as carbon black, active carbon and the like, but also improving the strength of the organic phase and reducing the production cost.
Further, the concentration of the cyclohexane solution of the trichloromethane is 15-30 wt%.
Further, the temperature rise process of the carbonization is as follows: heating to 280 ℃ at the speed of 2 ℃/min, preserving heat for 30min, heating to 680-740 ℃ at the heating rate of 4 ℃/min, preserving heat for 70-85 min, and naturally cooling to room temperature.
Further, the mass ratio of the carbon microspheres to the silane coupling agent to the ethanol solution is 5: 3-12: 5 to 15.
Further, the raw materials for preparing the reinforced modified ABS plastic comprise the following components in parts by weight: 100 parts of ABS resin, 33 parts of styrene-acrylonitrile copolymer, 2.0 parts of styrene maleic anhydride copolymer, 5.0 parts of modified carbon particles, 1.0 part of high-adhesive ABS graft powder, 1.0 part of ethylene bis stearamide, 2.4 parts of aluminum borate whisker, 1.3 parts of zinc stearate and 0.4 part of antioxidant.
The invention also aims to provide a preparation method of the reinforced modified ABS plastic, which comprises the following steps:
step S10, putting the aluminum borate whisker and the coupling agent in parts by weight into a high-speed mixer, and carrying out surface treatment for 10-15 minutes at 120 ℃ to obtain a pretreated aluminum borate whisker;
step S20, adding the ABS resin, the styrene-acrylonitrile copolymer, the styrene maleic anhydride copolymer, the modified carbon particles, the high-adhesive ABS graft powder, the ethylene bis stearamide, the zinc stearate, the antioxidant and the pretreated aluminum borate whisker obtained in the step S10 into a high-speed mixer, and fully and uniformly mixing to obtain a mixed material;
and step S30, putting the mixed material into a double-screw extruder to extrude and granulate to obtain the reinforced modified ABS plastic.
Further, in step S30, the extrusion granulation process parameters include: the temperature is 205-225 ℃, the rotating speed is 150-240 r/min, and the feeding speed is 120-180 kg/h.
The technical scheme can show that the invention has the advantages that:
1. the reinforced modified ABS plastic is added with styrene-acrylonitrile copolymer, styrene maleic anhydride copolymer, high-glue ABS graft powder and ethylene bis stearamide to reinforce the performance of ABS resin, and the styrene maleic anhydride copolymer serving as a compatilizer can improve the compatibility of inorganic filler and ABS resin and improve the processing fluidity; the styrene-acrylonitrile copolymer is a polar polymer, has high compatibility with ABS resin, and can improve the flowability of ABS and the processability by adding the styrene-acrylonitrile copolymer into an ABS resin matrix; the ethylene bis stearamide can improve the dispersibility of the modified carbon particles and the aluminum borate whiskers in the ABS resin and improve the flowability and the demolding property of a matrix;
2. the reinforced modified ABS plastic is added with modified carbon particles, high-glue ABS graft powder and pretreated aluminum borate whiskers, the aluminum borate whiskers can improve the strength of the plastic, and the modified carbon particles can be used as fillers to replace raw materials such as calcium carbonate, talcum powder, carbon black and graphene, so that the strength of the plastic is ensured, and the raw material cost is saved;
3. the reinforced modified ABS plastic prepared by the invention has the advantages of high strength, excellent impact resistance, simple preparation method, easy operation of preparation process, high economic benefit and suitability for industrial production.
In addition to the objects, features and advantages described above, other objects, features and advantages of the present invention are also provided. The present invention will be described in further detail below.
Detailed Description
The following detailed description of embodiments of the invention, but the invention can be practiced in many different ways, as defined and covered by the claims.
Example 1
Reinforced modified ABS plastic and preparation method thereof
The raw materials for preparing the reinforced modified ABS plastic comprise: 100kg of ABS resin, 22kg of styrene-acrylonitrile copolymer, 1.5kg of styrene maleic anhydride copolymer, 2.5kg of modified carbon particles, 0.4kg of high-adhesive ABS graft powder, 0.5kg of ethylene bis stearamide, 1.2kg of aluminum borate whisker, 1.0kg of zinc stearate and 0.2kg of antioxidant; the high-adhesive ABS graft powder is high-adhesive ABS graft powder PW-151 with a softening point of 80 ℃; the technical parameters of the styrene-acrylonitrile copolymer are as follows: the number average molecular weight is 5.0 to 5.4 x 104The intrinsic viscosity is between 0.48dl/g and 0.56dl/g, and the melt index (220 ℃, 10kg) is between 38g/10min and 45g/10 min; the acid value of the ethylene bis-stearamide is less than 7.0mgKOH/g, the color value is less than 5.0, and the total amine value is less than 3.0 mgKOH/g; the aluminum borate whisker has the length of 13 microns, the diameter of 1.75 microns and the density of 2.83 g-cm3。
Wherein, the preparation method of the modified carbon particles comprises the following steps: placing corn starch into a heating furnace, and carbonizing in a nitrogen atmosphere to obtain starch carbon; adding 60 parts of starch carbon and 15 parts of starch into 100 parts of water, adjusting the pH value to 8.5 by using sodium hydroxide, and heating to 88 ℃ for 30 minutes to obtain a pretreatment mixed solution; adding 100 parts of cyclohexane solution of trichloromethane into tween at 45 ℃, and uniformly stirring and mixing to obtain a premixed solution; adding the pretreatment mixed solution into the premixed solution, stirring and mixing, adding 4 parts of liquid paraffin, controlling the temperature at 45 ℃, stirring and mixing for 4 hours, centrifuging, washing and drying to obtain starch powder; putting the starch powder into a heating furnace at 600 ℃ for treatment for 30 minutes to obtain carbon microspheres; putting the carbon microspheres into an ethanol solution of a silane coupling agent, stirring and mixing for 40 minutes, filtering, carrying out water-based neutralization to neutrality, and drying to obtain modified carbon particles; the cyclohexane solution of chloroform has a concentration of 15 wt%; the temperature rise process of the carbonization is as follows: heating to 280 ℃ at a speed of 2 ℃/min, preserving heat for 30min, heating to 680 ℃ at a heating rate of 4 ℃/min, preserving heat for 70min, and naturally cooling to room temperature; the mass ratio of the carbon microspheres to the silane coupling agent to the ethanol solution is 5: 3: 5; the concentration of the ethanol solution is 80%.
The preparation method of the reinforced modified ABS plastic comprises the following steps:
step S10, putting the aluminum borate whisker and the coupling agent in parts by weight into a high-speed mixer, and carrying out surface treatment for 10 minutes at 120 ℃ to obtain pretreated aluminum borate whisker;
step S20, adding the ABS resin, the styrene-acrylonitrile copolymer, the styrene maleic anhydride copolymer, the modified carbon particles, the high-adhesive ABS graft powder, the ethylene bis stearamide, the zinc stearate, the antioxidant and the pretreated aluminum borate whisker obtained in the step S10 into a high-speed mixer, and fully and uniformly mixing to obtain a mixed material;
step S30, putting the mixed material into a double-screw extruder for extrusion granulation, wherein the extrusion granulation process parameters comprise: the temperature is 205 ℃, the rotating speed is 150r/min, and the feeding speed is 120kg/h, so that the reinforced modified ABS plastic is obtained.
Example 2
Reinforced modified ABS plastic and preparation method thereof
The raw materials for preparing the reinforced modified ABS plastic comprise: 100kg of ABS resin, 44kg of styrene-acrylonitrile copolymer, 2.5kg of styrene maleic anhydride copolymer, 8.0kg of modified carbon particles, 1.6kg of high-adhesive ABS graft powder, 1.4kg of ethylene bis stearamide, 3.5kg of aluminum borate whisker, 1.6kg of zinc stearate and 0.7kg of antioxidant; the high-adhesive ABS graft powder is high-adhesive ABS graft powder PW-151 with a softening point of 80 ℃; the technical parameters of the styrene-acrylonitrile copolymer are as follows: number average molecular weight of 5.4 × 104Intrinsic viscosity 0.56dl/g, melt index (220 ℃, 10kg) at 45g/10 min; the acid value of the ethylene bis-stearamide is less than 7.0mgKOH/g, the color value is less than 5.0, and the total amine value is less than 3.0 mgKOH/g; the aluminum borate whisker has the length of 13 microns, the diameter of 1.75 microns and the density of 2.83g/cm3。
Wherein, the preparation method of the modified carbon particles comprises the following steps: placing corn starch into a heating furnace, and carbonizing in a nitrogen atmosphere to obtain starch carbon; adding 60 parts of starch carbon and 32 parts of starch into 100 parts of water, adjusting the pH value to 8.5 by using sodium hydroxide, and heating to 85 ℃ for 30 minutes to obtain a pretreatment mixed solution; adding 100 parts of cyclohexane solution of trichloromethane into tween at 45 ℃, and uniformly stirring and mixing to obtain a premixed solution; adding the pretreatment mixed solution into the premixed solution, stirring and mixing, adding 18 parts of liquid paraffin, controlling the temperature at 45 ℃, stirring and mixing for 6 hours, centrifuging, washing and drying to obtain starch powder; putting the starch powder into a heating furnace at 600 ℃ for treatment for 30 minutes to obtain carbon microspheres; putting the carbon microspheres into an ethanol solution of a silane coupling agent, stirring and mixing for 60 minutes, filtering, carrying out water-based neutralization to neutrality, and drying to obtain modified carbon particles; the cyclohexane solution of chloroform has a concentration of 30 wt%; the temperature rise process of the carbonization is as follows: heating to 280 ℃ at a speed of 2 ℃/min, preserving heat for 30min, heating to 740 ℃ at a heating rate of 4 ℃/min, preserving heat for 85min, and naturally cooling to room temperature; the mass ratio of the carbon microspheres to the silane coupling agent to the ethanol solution is 5: 12: 15; the concentration of the ethanol solution was 75%.
The preparation method of the reinforced modified ABS plastic comprises the following steps:
step S10, putting the aluminum borate whisker and the coupling agent in parts by weight into a high-speed mixer, and carrying out surface treatment for 10-15 minutes at 120 ℃ to obtain a pretreated aluminum borate whisker;
step S20, adding the ABS resin, the styrene-acrylonitrile copolymer, the styrene maleic anhydride copolymer, the modified carbon particles, the high-adhesive ABS graft powder, the ethylene bis stearamide, the zinc stearate, the antioxidant and the pretreated aluminum borate whisker obtained in the step S10 into a high-speed mixer, and fully and uniformly mixing to obtain a mixed material;
step S30, putting the mixed material into a double-screw extruder for extrusion granulation, wherein the extrusion granulation process parameters comprise: the temperature is 225 ℃, the rotating speed is 240r/min, and the feeding speed is 180kg/h, so that the reinforced modified ABS plastic is obtained.
Example 3
Reinforced modified ABS plastic and preparation method thereof
The raw materials for preparing the reinforced modified ABS plastic comprise: 100kg of ABS resin, 28kg of styrene-acrylonitrile copolymer, 2.2kg of styrene maleic anhydride copolymer, 7.0kg of modified carbon particles, 0.6kg of high-adhesive ABS graft powder, 0.7kg of ethylene bis stearamide, 1.8kg of aluminum borate whisker, 1.5kg of zinc stearate and 0.3kg of antioxidant; the technical parameters of the styrene-acrylonitrile copolymer are as follows: number average molecular weight of 5.0 × 104Intrinsic viscosity of 0.48dl/gdl/g, and melt index (220 ℃, 10kg) of 38g/10 min; the ethylene bis-stearamide has an acid value of less than 7.0mgKOH/g, a color value of less than 5.0 and a total amine value of less than 3.0 mgKOH/g.
Wherein, the preparation method of the modified carbon particles comprises the following steps: placing corn starch into a heating furnace, and carbonizing in a nitrogen atmosphere to obtain starch carbon; adding 60 parts of starch carbon and 30 parts of starch into 100 parts of water, adjusting the pH value to 8.5 by using sodium hydroxide, and heating to 80 ℃ for 30 minutes to obtain a pretreatment mixed solution; adding 100 parts of cyclohexane solution of trichloromethane into tween at 45 ℃, and uniformly stirring and mixing to obtain a premixed solution; adding the pretreatment mixed solution into the premixed solution, stirring and mixing, adding 6 parts of liquid paraffin, controlling the temperature at 45 ℃, stirring and mixing for 5.5 hours, centrifuging, washing and drying to obtain starch powder; putting the starch powder into a heating furnace at 600 ℃ for treatment for 30 minutes to obtain carbon microspheres; putting the carbon microspheres into an ethanol solution of a silane coupling agent, stirring and mixing for 45 minutes, filtering, carrying out water-based neutralization to neutrality, and drying to obtain modified carbon particles; the cyclohexane solution of chloroform has a concentration of 20 wt%; the temperature rise process of the carbonization is as follows: heating to 280 ℃ at a speed of 2 ℃/min, preserving heat for 30min, heating to 680 ℃ at a heating rate of 4 ℃/min, preserving heat for 75min, and naturally cooling to room temperature; the mass ratio of the carbon microspheres to the silane coupling agent to the ethanol solution is 5: 5: 12; the concentration of the ethanol solution was 75%.
The preparation method of the reinforced modified ABS plastic comprises the following steps:
step S10, putting the aluminum borate whisker and the coupling agent in parts by weight into a high-speed mixer, and carrying out surface treatment for 12 minutes at 120 ℃ to obtain pretreated aluminum borate whisker;
step S20, adding the ABS resin, the styrene-acrylonitrile copolymer, the styrene maleic anhydride copolymer, the modified carbon particles, the high-adhesive ABS graft powder, the ethylene bis stearamide, the zinc stearate, the antioxidant and the pretreated aluminum borate whisker obtained in the step S10 into a high-speed mixer, and fully and uniformly mixing to obtain a mixed material;
step S30, putting the mixed material into a double-screw extruder for extrusion granulation, wherein the extrusion granulation process parameters comprise: the temperature is 220 ℃, the rotating speed is 170r/min, and the feeding speed is 130kg/h, so that the reinforced modified ABS plastic is obtained.
Example 4
Reinforced modified ABS plastic and preparation method thereof
The raw materials for preparing the reinforced modified ABS plastic comprise the following components in parts by weight: 100kg of ABS resin, 33kg of styrene-acrylonitrile copolymer, 2.0kg of styrene maleic anhydride copolymer, 5.0kg of modified carbon particles, 1.0kg of high-adhesive ABS graft powder, 1.0kg of ethylene bis stearamide, 2.4kg of aluminum borate whisker, 1.3kg of zinc stearate and 0.4kg of antioxidant; the high-adhesive ABS graft powder has a softening point of 80 DEG CRubber ABS graft powder PW-151; the technical parameters of the styrene-acrylonitrile copolymer are as follows: number average molecular weight of 5.2X 104Intrinsic viscosity of 0.52dl/g and melt index (220 ℃, 10kg) of 42g/10 min; the acid value of the ethylene bis-stearamide is less than 7.0mgKOH/g, the color value is less than 5.0, and the total amine value is less than 3.0 mgKOH/g; the aluminum borate whisker has the length of 13 microns, the diameter of 1.75 microns and the density of 2.83g/cm3。
Wherein, the preparation method of the modified carbon particles comprises the following steps: placing corn starch into a heating furnace, and carbonizing in a nitrogen atmosphere to obtain starch carbon; adding 60 parts of starch carbon and 23 parts of starch into 100 parts of water, adjusting the pH value to 8.5 by using sodium hydroxide, and heating to 82 ℃ for 30 minutes to obtain a pretreatment mixed solution; adding 100 parts of cyclohexane solution of trichloromethane into tween at 45 ℃, and uniformly stirring and mixing to obtain a premixed solution; adding the pretreatment mixed solution into the premixed solution, stirring and mixing, adding 11 parts of liquid paraffin, controlling the temperature at 45 ℃, stirring and mixing for 5 hours, centrifuging, washing and drying to obtain starch powder; putting the starch powder into a heating furnace at 600 ℃ for treatment for 30 minutes to obtain carbon microspheres; putting the carbon microspheres into an ethanol solution of a silane coupling agent, stirring and mixing for 50 minutes, filtering, carrying out water-based neutralization to neutrality, and drying to obtain modified carbon particles; the cyclohexane solution of chloroform has a concentration of 22 wt%; the temperature rise process of the carbonization is as follows: heating to 280 ℃ at a speed of 2 ℃/min, preserving heat for 30min, heating to 710 ℃ at a heating rate of 4 ℃/min, preserving heat for 78min, and naturally cooling to room temperature; the mass ratio of the carbon microspheres to the silane coupling agent to the ethanol solution is 5: 7.5: 10; the concentration of the ethanol solution was 75%.
The preparation method of the reinforced modified ABS plastic comprises the following steps:
step S10, putting the aluminum borate whisker and the coupling agent in parts by weight into a high-speed mixer, and carrying out surface treatment for 12 minutes at 120 ℃ to obtain pretreated aluminum borate whisker;
step S20, adding the ABS resin, the styrene-acrylonitrile copolymer, the styrene maleic anhydride copolymer, the modified carbon particles, the high-adhesive ABS graft powder, the ethylene bis stearamide, the zinc stearate, the antioxidant and the pretreated aluminum borate whisker obtained in the step S10 into a high-speed mixer, and fully and uniformly mixing to obtain a mixed material;
step S30, putting the mixed material into a double-screw extruder for extrusion granulation, wherein the extrusion granulation process parameters comprise: the temperature is 215 ℃, the rotating speed is 200r/min, and the feeding speed is 150kg/h, so that the reinforced modified ABS plastic is obtained.
Comparative example 1
Reinforced modified ABS plastic and preparation method thereof
The raw materials for preparing the reinforced modified ABS plastic comprise the following components in parts by weight: 100kg of ABS resin, 33kg of styrene-acrylonitrile copolymer, 2.0kg of styrene maleic anhydride copolymer, 5.0kg of talcum powder, 1.0kg of high-adhesive ABS graft powder, 1.0kg of ethylene bis stearamide, 2.4kg of aluminum borate whisker, 1.3kg of zinc stearate and 0.4kg of antioxidant; the high-adhesive ABS graft powder is high-adhesive ABS graft powder PW-151 with a softening point of 80 ℃; the technical parameters of the styrene-acrylonitrile copolymer are as follows: number average molecular weight of 5.2X 104Intrinsic viscosity of 0.52dl/g and melt index (220 ℃, 10kg) of 42g/10 min; the ethylene bis-stearamide has an acid value of less than 7.0mgKOH/g, a color value of less than 5.0 and a total amine value of less than 3.0 mgKOH/g.
The preparation method of the reinforced modified ABS plastic comprises the following steps:
step S10, putting the aluminum borate whisker and the coupling agent in parts by weight into a high-speed mixer, and carrying out surface treatment for 12 minutes at 120 ℃ to obtain pretreated aluminum borate whisker;
step S20, adding the ABS resin, the styrene-acrylonitrile copolymer, the styrene maleic anhydride copolymer, the talcum powder, the high-adhesive ABS graft powder, the ethylene bis-stearamide, the zinc stearate, the antioxidant and the pretreated aluminum borate whisker obtained in the step S10 into a high-speed mixer, and fully and uniformly mixing to obtain a mixed material;
step S30, putting the mixed material into a double-screw extruder for extrusion granulation, wherein the extrusion granulation process parameters comprise: the temperature is 215 ℃, the rotating speed is 200r/min, and the feeding speed is 150kg/h, so that the reinforced modified ABS plastic is obtained.
Comparative example 2
Reinforced modified ABS plastic and preparation method thereof
The raw materials for preparing the reinforced modified ABS plastic comprise the following components in parts by weight: 100kg of ABS resin, 33kg of styrene-acrylonitrile copolymer, 2.0kg of styrene maleic anhydride copolymer, 5.0kg of modified carbon black, 1.0kg of high-adhesive ABS graft powder, 1.0kg of ethylene bis stearamide, 2.4kg of aluminum borate whisker, 1.3kg of zinc stearate and 0.4kg of antioxidant; the high-adhesive ABS graft powder is high-adhesive ABS graft powder PW-151 with a softening point of 80 ℃; the technical parameters of the styrene-acrylonitrile copolymer are as follows: number average molecular weight of 5.2X 104Intrinsic viscosity of 0.52dl/g and melt index (220 ℃, 10kg) of 42g/10 min; the ethylene bis-stearamide has an acid value of less than 7.0mgKOH/g, a color value of less than 5.0 and a total amine value of less than 3.0 mgKOH/g.
The preparation method of the modified carbon black comprises the following steps: putting the carbon black into an ethanol solution of a silane coupling agent, stirring and mixing for 50 minutes, filtering, carrying out water-based neutralization to neutrality, and drying to obtain modified carbon black; the mass ratio of the carbon black to the silane coupling agent to the ethanol solution is 5: 7.5: 10; the concentration of the ethanol solution was 75%.
The preparation method of the reinforced modified ABS plastic comprises the following steps:
step S10, putting the aluminum borate whisker and the coupling agent in parts by weight into a high-speed mixer, and carrying out surface treatment for 12 minutes at 120 ℃ to obtain pretreated aluminum borate whisker;
step S20, adding the ABS resin, the styrene-acrylonitrile copolymer, the styrene maleic anhydride copolymer, the modified carbon black, the high-adhesive ABS graft powder, the ethylene bis stearamide, the zinc stearate, the antioxidant and the pretreated aluminum borate whisker obtained in the step S10 into a high-speed mixer, and fully and uniformly mixing to obtain a mixed material;
step S30, putting the mixed material into a double-screw extruder for extrusion granulation, wherein the extrusion granulation process parameters comprise: the temperature is 215 ℃, the rotating speed is 200r/min, and the feeding speed is 150kg/h, so that the reinforced modified ABS plastic is obtained.
Comparative example 3
Reinforced modified ABS plastic and preparation method thereof
The raw materials for preparing the reinforced modified ABS plastic comprise the following components in parts by weight: 100kg of ABS resin, 33kg of styrene-acrylonitrile copolymer, 2.0kg of styrene maleic anhydride copolymer, 1.0kg of high-adhesive ABS graft powder, 1.0kg of ethylene bis stearamide, 1.3kg of zinc stearate and 0.4kg of antioxidant; the high-adhesive ABS graft powder is high-adhesive ABS graft powder PW-151 with a softening point of 80 ℃; the technical parameters of the styrene-acrylonitrile copolymer are as follows: number average molecular weight of 5.2X 104Intrinsic viscosity of 0.52dl/g and melt index (220 ℃, 10kg) of 42g/10 min; the ethylene bis-stearamide has an acid value of less than 7.0mgKOH/g, a color value of less than 5.0 and a total amine value of less than 3.0 mgKOH/g.
The preparation method of the reinforced modified ABS plastic comprises the following steps:
step S10, adding the ABS resin, the styrene-acrylonitrile copolymer, the styrene maleic anhydride copolymer, the high-adhesive ABS graft powder, the ethylene bis stearamide, the zinc stearate and the antioxidant in parts by weight into a high-speed mixer, and fully and uniformly mixing to obtain a mixed material;
step S20, putting the mixed material into a double-screw extruder for extrusion granulation, wherein the extrusion granulation process parameters comprise: the temperature is 215 ℃, the rotating speed is 200r/min, and the feeding speed is 150kg/h, so that the reinforced modified ABS plastic is obtained.
Comparative example 4
ABS plastic and preparation method thereof
The raw materials for preparing the ABS plastic comprise the following components in parts by weight: 100kg of ABS resin, 1.0kg of high-adhesive ABS graft powder, 1.3kg of zinc stearate and 0.4kg of antioxidant; the high-adhesive ABS graft powder is high-adhesive ABS graft powder PW-151 with a softening point of 80 ℃.
The preparation method of the ABS plastic comprises the following steps:
step S10, adding the ABS resin, the high-adhesive ABS graft powder, the zinc stearate and the antioxidant in parts by weight into a high-speed mixer, and fully and uniformly mixing to obtain a mixed material;
step S20, putting the mixed material into a double-screw extruder for extrusion granulation, wherein the extrusion granulation process parameters comprise: the temperature is 215 ℃, the rotating speed is 200r/min, and the feeding speed is 150kg/h, so that the ABS plastic is obtained.
Examples of the experiments
To further illustrate the technological advancement of the present invention, experiments are now taken to further illustrate it.
The experimental method comprises the following steps: the reinforced modified ABS plastic particles prepared by the invention and the ABS plastic prepared by the comparative example are subjected to performance tests, and the results are shown in Table 1.
TABLE 1
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The reinforced modified ABS plastic is characterized by comprising the following raw materials in parts by weight: 100 parts of ABS resin, 22-44 parts of styrene-acrylonitrile copolymer, 1.5-2.5 parts of styrene maleic anhydride copolymer, 2.5-8.0 parts of modified carbon particles, 0.4-1.6 parts of high-adhesive ABS graft powder, 0.5-1.4 parts of ethylene bis stearamide, 1.2-3.5 parts of aluminum borate whisker, 1.0-1.6 parts of zinc stearate and 0.2-0.7 part of antioxidant.
2. The reinforced modified ABS plastic according to claim 1, wherein the technical parameters of the styrene-acrylonitrile copolymer are as follows: the number average molecular weight is 5.0 to 5.4 x 104The intrinsic viscosity is between 0.48dl/g and 0.56dl/g, and the melt index (220 ℃, 10kg) is between 38g/10min and 45g/10 min.
3. The reinforced modified ABS plastic according to claim 1, wherein the ethylene bis-stearamide has an acid value of less than 7.0mgKOH/g, a color value of less than 5.0 and a total amine value of less than 3.0 mgKOH/g.
4. The reinforced modified ABS plastic as recited in claim 1, wherein the modified carbon particles are prepared by a method comprising: placing corn starch into a heating furnace, and carbonizing in a nitrogen atmosphere to obtain starch carbon; adding 60 parts of starch carbon and 15-32 parts of starch into 100 parts of water, adjusting the pH value to 8.5 by using sodium hydroxide, heating to 88-85 ℃, and keeping for 30 minutes to obtain a pretreatment mixed solution; adding 100 parts of cyclohexane solution of trichloromethane into tween at 45 ℃, and uniformly stirring and mixing to obtain a premixed solution; adding the pre-treatment mixed solution into the pre-mixed solution, stirring and mixing, adding 4-18 parts of liquid paraffin, controlling the temperature at 45 ℃, stirring and mixing for 4-6 hours, centrifuging, washing and drying to obtain starch powder; putting the starch powder into a heating furnace at 600 ℃ for treatment for 30 minutes to obtain carbon microspheres; and (3) putting the carbon microspheres into an ethanol solution of a silane coupling agent, stirring and mixing for 40-60 minutes, filtering, carrying out water-based neutralization, and drying to obtain the modified carbon particles.
5. The reinforced modified ABS plastic according to claim 4, wherein the concentration of the cyclohexane solution of trichloromethane is 15 wt% to 30 wt%.
6. The reinforced modified ABS plastic as recited in claim 4, wherein the temperature rise process of the carbonization is as follows: heating to 280 ℃ at the speed of 2 ℃/min, preserving heat for 30min, heating to 680-740 ℃ at the heating rate of 4 ℃/min, preserving heat for 70-85 min, and naturally cooling to room temperature.
7. The reinforced modified ABS plastic as claimed in claim 4, wherein the mass ratio of the carbon microspheres to the silane coupling agent to the ethanol solution is 5: 3-12: 5 to 15.
8. The reinforced modified ABS plastic as recited in claim 1, wherein the raw materials for preparing the reinforced modified ABS plastic comprise, by weight: 100 parts of ABS resin, 33 parts of styrene-acrylonitrile copolymer, 2.0 parts of styrene maleic anhydride copolymer, 5.0 parts of modified carbon particles, 1.0 part of high-adhesive ABS graft powder, 1.0 part of ethylene bis stearamide, 2.4 parts of aluminum borate whisker, 1.3 parts of zinc stearate and 0.4 part of antioxidant.
9. A preparation method of the reinforced modified ABS plastic according to any of claims 1-8, characterized by comprising the following steps:
step S10, putting the aluminum borate whisker and the coupling agent in parts by weight into a high-speed mixer, and carrying out surface treatment for 10-15 minutes at 120 ℃ to obtain a pretreated aluminum borate whisker;
step S20, adding the ABS resin, the styrene-acrylonitrile copolymer, the styrene maleic anhydride copolymer, the modified carbon particles, the high-adhesive ABS graft powder, the ethylene bis stearamide, the zinc stearate, the antioxidant and the pretreated aluminum borate whisker obtained in the step S10 into a high-speed mixer, and fully and uniformly mixing to obtain a mixed material;
and step S30, putting the mixed material into a double-screw extruder to extrude and granulate to obtain the reinforced modified ABS plastic.
10. The method according to claim 8, wherein in step S30, the extrusion granulation process parameters include: the temperature is 205-225 ℃, the rotating speed is 150-240 r/min, and the feeding speed is 120-180 kg/h.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115260842A (en) * | 2022-08-08 | 2022-11-01 | 山东东宏管业股份有限公司 | High-adhesion and crack-resistant polyethylene powder and preparation method and application thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115260842A (en) * | 2022-08-08 | 2022-11-01 | 山东东宏管业股份有限公司 | High-adhesion and crack-resistant polyethylene powder and preparation method and application thereof |
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