CN111484703A - Flame-retardant high-strength automobile interior ABS material and preparation method thereof - Google Patents
Flame-retardant high-strength automobile interior ABS material and preparation method thereof Download PDFInfo
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Abstract
The invention discloses a flame-retardant high-strength automobile interior ABS material and a preparation method thereof, wherein the ABS material is added with an antibacterial filler and a modified glass bead filler, wherein the modified glass bead filler is provided with glass beads as a main material, the glass beads have a good heat insulation effect, a titanium dioxide layer is attached to the surfaces of the glass beads, and a polystyrene layer is formed on the surface of a glass bead intermediate by bonding titanium dioxide and polystyrene, so that the dispersion effect of the glass beads in ABS resin is improved, and the heat insulation and reinforcement performance of the ABS material is improved; in the preparation process of the antibacterial filler, montmorillonite is used as a main material, zinc nitrate is converted into zinc oxide in a porous structure of the montmorillonite, the zinc oxide has good broad-spectrum sterilization capability under the illumination condition, and a polystyrene layer is formed on the surface of the organic montmorillonite, so that the dispersion effect of the organic montmorillonite in ABS resin is improved, and the heat insulation and reinforcement performance of the ABS material is improved.
Description
Technical Field
The invention belongs to the technical field of high polymer materials, and particularly relates to a flame-retardant high-strength automobile interior ABS material and a preparation method thereof.
Background
The ABS material is acrylonitrile-butadiene-styrene copolymer, is a thermoplastic high molecular structure material with high strength, good toughness and easy processing and molding, is also called ABS resin, the ABS resin is one of five synthetic resins, has the characteristics of excellent impact resistance, heat resistance, low temperature resistance, chemical resistance and electrical performance, easy processing, stable product size, good surface gloss and the like, is easy to coat and color, can be subjected to secondary processing such as surface spraying metal, electroplating, welding, hot pressing, bonding and the like, is widely applied to the industrial fields of machinery, automobiles, electronic appliances, instruments, textile, buildings and the like, and is thermoplastic engineering plastic with extremely wide application.
Because the ABS material has the characteristics of flammability and high insulation, and as the ABS material used in the automotive interior, in order to ensure safety and comfort, the ABS material should have the effects of flame retardance, antistatic property, etc., and at the same time, should have higher strength without preventing the ABS material from generating obvious deformation and damage in the preparation process, and because the automotive interior is easy to absorb heat under the sunshine high temperature condition, the temperature in the vehicle is rapidly increased even the interior material is heated and deformed, so the traditional ABS material needs to be processed to improve or even solve the condition, in order to solve the above-mentioned problems, the invention provides a high-strength ABS material for the automotive interior with flame retardance and heat insulation, and the invention provides the following technical scheme.
Disclosure of Invention
The invention aims to provide a flame-retardant high-strength automobile interior ABS material and a preparation method thereof.
The technical problems to be solved by the invention are as follows:
the ABS material has the characteristics of flammability and high insulativity, and when the ABS material is used as an automotive interior material, the safety is insufficient, and because the automotive interior material easily absorbs heat under the condition of sunshine and high temperature, the temperature in the automobile is rapidly increased, even the interior material is heated and deformed, and the automobile is also a place contacted by an automobile owner for a long time, so that the biological safety of the interior is ensured.
The purpose of the invention can be realized by the following technical scheme:
the flame-retardant high-strength automobile interior ABS material is prepared by processing the following raw materials in parts by weight: 60-80 parts of ABS resin, 5-10 parts of antibacterial filler, 6-15 parts of modified glass bead filler, 10-15 parts of flame retardant, 3-5 parts of auxiliary flame retardant, 0.8-2 parts of antioxidant, 0.4-1 part of lubricant, 0.5-3 parts of heat stabilizer and 1-2 parts of antistatic agent;
the flame retardant is antimony trioxide;
the auxiliary flame retardant is one or a mixture of at least two of triphenyl phosphate, sodium antimonate, zinc borate and talcum powder in any ratio;
the antioxidant is one or a mixture of at least two of phosphite ester and thioester in any ratio;
the lubricant is one or a mixture of at least two of silicone oil, ethylene homopolymerization wax, white mineral oil, calcium stearate and pentaerythritol stearate in any ratio;
the heat stabilizer is one or a mixture of at least two of zinc stearate, magnesium stearate and calcium stearate in any ratio;
the antistatic agent is one of ethoxylated alkylamine, glycerol monostearate and alkyl sulfonate;
the preparation method of the flame-retardant high-strength automobile interior ABS material comprises the following steps:
adding the components into a high-speed mixer according to the weight parts and the formula composition, uniformly mixing, adding the mixed materials into a double-screw extruder, carrying out melt blending, extruding and granulating, wherein the extrusion temperature of the extruder is 180-200 ℃, and obtaining the flame-retardant high-strength automobile interior ABS material.
The preparation method of the antibacterial filler comprises the following steps:
s1, adding montmorillonite into deionized water, soaking for 16-24h, boiling upper layer colloid in water, standing, cooling, removing bottom sediment, adding sodium bicarbonate into the suspension, heating to 40-60 ℃, stirring for reaction for 30-40min, filtering, drying, and pulverizing to obtain sodium montmorillonite;
s2, adding the sodium montmorillonite prepared in the step S1 into a zinc nitrate water solution, carrying out ultrasonic treatment for 10-20min, drying at 60-90 ℃ for 4-5h after filtering, and roasting at 400-500 ℃ for 1.5-2h to obtain the antibacterial montmorillonite;
the method comprises the following steps of enabling a large amount of zinc oxide raw materials to enter a porous structure of montmorillonite through ultrasonic treatment, and then converting zinc nitrate into zinc oxide through high-temperature heating treatment, wherein the zinc oxide has strong photolysis capacity and good broad-spectrum sterilization capacity under the illumination condition;
s3, preparing a hexadecyl trimethyl ammonium bromide aqueous solution with the mass concentration of 2% -7%, adding the sodium-based montmorillonite prepared in the step S1, heating to 40-60 ℃, stirring for reacting for 30-40min, filtering, drying and crushing to obtain organic montmorillonite;
s4, adding the organic montmorillonite obtained in the step S3 into mixed oil, uniformly mixing the organic montmorillonite with the mixed oil for later use, wherein the mixed oil is prepared by mixing styrene and n-hexadecane according to the volume ratio of 1: 1-3, and the adding amount of glass beads in the mixed oil is 60-130 g/L;
s5, adding sodium dodecyl sulfate and sodium bicarbonate into deionized water to dissolve to obtain a water phase, wherein the mass concentration of the sodium dodecyl sulfate is 1% -5%, the mass concentration of the sodium bicarbonate is 2% -4%, adding the mixed oil obtained in the step S4 into the water phase, performing ultrasonic treatment and stirring for 10-20min to obtain an emulsion, and the rotating speed during stirring is 200-600r/min, wherein the volume ratio of the mixed oil to the water phase is 1: 0.4 to 1;
SS6, heating the emulsion obtained in the last step in a water bath to 70-75 ℃, adding an ammonium persulfate initiator into the emulsion, heating the mixture for reaction for 3.5-4.5 hours, filtering, drying and drying the mixture to obtain an antibacterial filler;
the surface of the antibacterial montmorillonite is treated by cetyl trimethyl ammonium bromide to improve the surface property of the antibacterial montmorillonite, the obtained organic montmorillonite is added into mixed oil for dispersion, the prepared oil phase dispersed with the organic montmorillonite is added into deionized water for mixing and emulsification, then polymerization reaction is carried out, a polystyrene layer is formed on the surface of the organic montmorillonite, so that the dispersion effect of the organic montmorillonite in ABS resin is improved, and the heat insulation and reinforcement performance of the ABS material is improved.
The preparation method of the modified glass bead filler comprises the following steps:
SS1, adding glass beads into deionized water, stirring and mixing to form a suspension, wherein the addition amount of the glass beads in the deionized water is 70-120 g/L, heating in a water bath, keeping the temperature at 50-60 ℃, adding sodium dodecyl benzene sulfonate into the deionized water while stirring, keeping the mass concentration of the sodium dodecyl benzene sulfonate solution at 0.2-1%, stirring for 10-30min while keeping the temperature, filtering, taking out the glass beads, and drying for 10-30min at the temperature of 50-70 ℃;
in the step, sodium dodecyl benzene sulfonate is used as a surfactant to improve the hydrophilicity of the glass beads, so that the subsequent treatment is facilitated;
SS2, preparing a polyvinyl alcohol aqueous solution with the mass concentration of 0.5-2%, cooling to below 25 ℃, adding the glass beads prepared in the step SS1, stirring and dispersing, keeping stirring, dropwise adding titanium tetrachloride into the mixture until the volume concentration of the titanium tetrachloride aqueous solution is 8-12%, stopping adding the titanium tetrachloride, and stirring at the constant temperature of 50-60 ℃ for reaction for 4-5 hours;
in the processes of dropwise adding titanium tetrachloride and stirring at constant temperature for reaction, continuously dropwise adding a sodium hydroxide solution into the solution, and adjusting the pH value of the solution to 3-3.5;
in the step, titanium tetrachloride is hydrolyzed in water to generate titanium dioxide and hydrochloric acid, wherein the generated titanium dioxide is uniformly attached to the surfaces of the glass beads, and the generated hydrochloric acid is neutralized by adding sodium hydroxide, so that the uniformity of the distribution of the titanium dioxide on the surfaces of the glass beads can be improved, and a layer of titanium dioxide film is formed on the surfaces of the glass beads, so that the heat radiation resistance of the glass beads is improved, the heat insulation effect of the glass beads is improved, the strength of the glass beads is improved, and the glass beads are prevented from being broken in a large amount in the subsequent processing process;
SS3, filtering the product obtained in the step SS2 to obtain glass beads, washing the glass beads with ethanol, drying the glass beads for 2 to 3 hours at the temperature of between 60 and 70 ℃, grinding and dispersing the glass beads, adding the dispersed glass beads into a muffle furnace, drying the glass beads for 1 to 2 hours at the temperature of between 600 and 650 ℃, taking out the glass beads, cooling the glass beads to the normal temperature, and grinding and dispersing the glass beads to obtain glass bead intermediates;
SS4, treating the glass bead intermediate prepared in the step SS3 by using a silane coupling agent to improve the surface oleophobic property of the glass bead intermediate, adding the treated glass bead intermediate into mixed oil, uniformly mixing for later use, wherein the mixed oil is prepared by mixing styrene and n-hexadecane according to the volume ratio of 1: 1-3, and the adding amount of the glass beads in the mixed oil is 60-130 g/L;
SS5, adding sodium dodecyl sulfate and sodium bicarbonate into deionized water to dissolve to obtain a water phase, wherein the mass concentration of the sodium dodecyl sulfate is 1% -5%, the mass concentration of the sodium bicarbonate is 2% -4%, adding the mixed oil obtained in the step SS4 into the water phase, performing ultrasonic treatment and stirring for 15-30min to obtain an emulsion, and the rotating speed during stirring is 200-300r/min to avoid the glass beads from being broken in a large amount, wherein the volume ratio of the mixed oil to the water phase is 1: 0.4 to 1;
SS6, heating the emulsion obtained in the last step in a water bath to 70-75 ℃, adding an initiator, heating for reaction for 3.5-4.5h, filtering, drying and drying to obtain the modified glass bead filler;
in one embodiment of the invention, the initiator in step SS6 is ammonium persulfate;
the surface of the glass bead is adhered with a titanium dioxide layer which has hydrophilic and oleophobic properties, in the steps from SS4 to SS6, the surface of the glass bead is firstly treated by a silane coupling agent to improve the surface property of the glass bead, then the treated glass bead is added into mixed oil for dispersion, finally the prepared oil phase dispersed with the glass bead is added into deionized water for mixing and emulsification, then polymerization reaction is carried out, a polystyrene layer is formed on the surface of a glass bead intermediate through bonding of titanium dioxide and polystyrene, so that the dispersion effect of the glass bead in ABS resin is improved, and the heat insulation and enhancement performance of the ABS material is improved.
The invention has the beneficial effects that:
the invention discloses a flame-retardant high-strength automobile interior ABS material and a preparation method thereof, wherein the ABS material is added with an antibacterial filler and a modified glass bead filler, wherein the modified glass bead filler is provided with glass beads as a main material, the glass beads have good heat insulation effect, the modified glass bead filler is prepared by firstly using sodium dodecyl benzene sulfonate as a surfactant to improve the hydrophilicity of the glass beads so as to facilitate subsequent treatment, then titanium tetrachloride is hydrolyzed in water to generate titanium dioxide and hydrochloric acid, the generated titanium dioxide is uniformly attached to the surfaces of the glass beads, the mode can improve the distribution uniformity of the titanium dioxide on the surfaces of the glass beads, and a layer of titanium dioxide film is formed on the surfaces of the glass beads, so that the heat radiation resistance of the glass beads is improved, and the heat insulation effect of the glass beads is improved, the strength of the glass beads is improved, the situation that the glass beads are broken in a large amount in the subsequent processing process is avoided, a titanium dioxide layer is attached to the surfaces of the glass beads, and the glass beads have hydrophilic and oleophobic properties, in steps SS 4-SS 6, the surfaces of the glass beads are treated through a silane coupling agent to improve the surface properties of the glass beads, then the treated glass beads are added into mixed oil for dispersion, finally the prepared oil phase dispersed with the glass beads is added into deionized water for mixing and emulsification, then polymerization reaction is carried out, a polystyrene layer is formed on the surfaces of glass bead intermediates through bonding of titanium dioxide and polystyrene, so that the dispersion effect of the glass beads in ABS resin is improved, and the heat insulation and reinforcement performance of the ABS material is improved; in the preparation process of the antibacterial filler, a large amount of zinc oxide raw materials enter a porous structure of montmorillonite through ultrasonic treatment, then zinc nitrate is converted into zinc oxide through high-temperature heating treatment, the zinc oxide has strong photolysis capacity and good broad-spectrum sterilization capacity under the illumination condition, then the surface of the antibacterial montmorillonite is treated through hexadecyl trimethyl ammonium bromide to improve the surface property of the antibacterial montmorillonite, then the obtained organic montmorillonite is added into mixed oil for dispersion, finally the prepared oil phase dispersed with the organic montmorillonite is added into deionized water for mixing and emulsification, then polymerization reaction is carried out, and a polystyrene layer is formed on the surface of the organic montmorillonite, so that the dispersion effect of the organic montmorillonite in ABS resin is improved, and the heat insulation and reinforcement performance of the ABS material is improved.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all 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.
Example 1
The flame-retardant high-strength automobile interior ABS material is prepared by processing the following raw materials in parts by weight: 65 parts of ABS resin, 7 parts of antibacterial filler, 10 parts of modified glass bead filler, 10 parts of flame retardant, 5 parts of auxiliary flame retardant, 1.3 parts of antioxidant, 1 part of lubricant, 2 parts of heat stabilizer and 1.4 parts of antistatic agent;
the flame retardant is antimony trioxide;
the auxiliary flame retardant is sodium antimonate;
the antioxidant is phosphite ester;
the lubricant is calcium stearate;
the heat stabilizer is calcium stearate
The antistatic agent is sodium dodecyl sulfate;
the preparation method of the flame-retardant high-strength automobile interior ABS material comprises the following steps:
adding the components into a high-speed mixer according to the weight parts and the formula, uniformly mixing, adding the mixed materials into a double-screw extruder, carrying out melt blending, extruding and granulating, wherein the extrusion temperature of the extruder is 200 ℃, and obtaining the flame-retardant high-strength automobile interior ABS material.
The preparation method of the antibacterial filler comprises the following steps:
s1, adding montmorillonite into deionized water, soaking for 24h, boiling upper layer colloid in water, standing, cooling, removing bottom sediment, adding sodium bicarbonate into the suspension, heating to 60 ℃, stirring for reaction for 30min, filtering, drying and crushing to obtain sodium montmorillonite, wherein the addition concentration of the sodium bicarbonate is 20 g/L;
s2, adding the sodium montmorillonite prepared in the step S1 into a zinc nitrate water solution, carrying out ultrasonic treatment for 10min, filtering, drying at 80 ℃ for 4h, and roasting at 500 ℃ for 2h to obtain the antibacterial montmorillonite, wherein the concentration of zinc nitrate is 2 g/L;
s3, preparing a hexadecyl trimethyl ammonium bromide aqueous solution with the mass concentration of 5%, adding the sodium-based montmorillonite prepared in the step S1, heating to 60 ℃, stirring for reacting for 30min, filtering, drying and crushing to obtain organic montmorillonite;
s4, adding the organic montmorillonite obtained in the step S3 into mixed oil, uniformly mixing the organic montmorillonite with the mixed oil for later use, wherein the mixed oil is prepared by mixing styrene and n-hexadecane according to the volume ratio of 1: 1, and the addition amount of the glass beads in the mixed oil is 100 g/L;
s5, adding sodium dodecyl sulfate and sodium bicarbonate into deionized water to dissolve to obtain a water phase, wherein the mass concentration of the sodium dodecyl sulfate is 2.5%, the mass concentration of the sodium bicarbonate is 3%, adding the mixed oil obtained in the step S4 into the water phase, performing ultrasonic treatment and stirring for 20min to obtain an emulsion, and the rotating speed during stirring is 400r/min, wherein the volume ratio of the mixed oil to the water phase is 1: 0.4;
SS6, heating the emulsion obtained in the last step in a water bath to 75 ℃, adding an ammonium persulfate initiator into the emulsion, heating for reaction for 4 hours, filtering, drying and drying to obtain an antibacterial filler;
the preparation method of the modified glass bead filler comprises the following steps:
SS1, adding glass beads into deionized water, stirring and mixing to form a suspension, wherein the addition amount of the glass beads in the deionized water is 100 g/L, heating in a water bath, keeping the temperature at 60 ℃, adding sodium dodecyl benzene sulfonate into the deionized water while stirring, keeping the mass concentration of a sodium dodecyl benzene sulfonate solution at 0.6%, stirring and treating for 20min, filtering, taking out the glass beads, and drying for 20min at the temperature of 70 ℃;
SS2, preparing a polyvinyl alcohol aqueous solution with the mass concentration of 2%, cooling to below 25 ℃, adding the glass beads prepared in the step SS1, stirring and dispersing, keeping stirring, dropwise adding titanium tetrachloride into the mixture until the volume concentration of the titanium tetrachloride aqueous solution is 10%, stopping adding the titanium tetrachloride, and stirring and reacting at the constant temperature of 60 ℃ for 4.5 hours;
in the processes of dropwise adding titanium tetrachloride and stirring at constant temperature for reaction, continuously dropwise adding a sodium hydroxide solution into the solution, and adjusting the pH value of the solution to 3-3.5;
SS3, filtering the product obtained in the step SS2 to obtain glass beads, washing the glass beads with ethanol, drying the glass beads for 2 hours at the temperature of 70 ℃, grinding and dispersing the glass beads, adding the dispersed glass beads into a muffle furnace, drying the glass beads for 2 hours at the temperature of 650 ℃, taking out the glass beads, cooling the glass beads to the normal temperature, and grinding and dispersing the glass beads to obtain a glass bead intermediate;
SS4, treating the glass bead intermediate prepared in the step SS3 through a silane coupling agent, improving the surface oleophobic property of the glass bead intermediate, adding the treated glass bead intermediate into mixed oil, uniformly mixing for later use, wherein the mixed oil is prepared by mixing styrene and n-hexadecane according to the volume ratio of 1: 1, and the adding amount of the glass beads in the mixed oil is 100 g/L;
SS5, adding sodium dodecyl sulfate and sodium bicarbonate into deionized water to dissolve to obtain a water phase, wherein the mass concentration of the sodium dodecyl sulfate is 2.5%, the mass concentration of the sodium bicarbonate is 3%, adding the mixed oil obtained in the step SS4 into the water phase, performing ultrasonic treatment and stirring for 20min to obtain an emulsion, and the rotating speed during stirring is 300r/min to avoid the glass beads from being broken in a large amount, wherein the volume ratio of the mixed oil to the water phase is 1: 0.6;
and SS6, heating the emulsion obtained in the last step in a water bath to 75 ℃, adding ammonium persulfate into the emulsion, heating for reaction for 4 hours, filtering, drying and drying to obtain the modified glass bead filler.
Example 2
The flame-retardant high-strength automobile interior ABS material is prepared by processing the following raw materials in parts by weight: 75 parts of ABS resin, 7 parts of antibacterial filler, 10 parts of modified glass bead filler, 12 parts of flame retardant, 3 parts of auxiliary flame retardant, 1.2 parts of antioxidant, 0.7 part of lubricant, 1.6 parts of heat stabilizer and 1.3 parts of antistatic agent;
the flame retardant is antimony trioxide;
the auxiliary flame retardant is zinc borate;
the antioxidant is phosphite ester;
the lubricant is calcium stearate;
the heat stabilizer is zinc stearate;
the antistatic agent is sodium dodecyl sulfate;
the preparation method of the flame-retardant high-strength automobile interior ABS material comprises the following steps:
adding the components into a high-speed mixer according to the weight parts and the formula, uniformly mixing, adding the mixed materials into a double-screw extruder, carrying out melt blending, extruding and granulating, wherein the extrusion temperature of the extruder is 180 ℃, and thus obtaining the flame-retardant high-strength automobile interior ABS material.
The preparation method of the antibacterial filler comprises the following steps:
s1, adding montmorillonite into deionized water, soaking for 24h, boiling upper layer colloid in water, standing, cooling, removing bottom sediment, adding sodium bicarbonate into the suspension, heating to 50 ℃, stirring for reaction for 30min, filtering, drying and crushing to obtain sodium montmorillonite, wherein the addition amount of the sodium bicarbonate is 20 g/L;
s2, adding the sodium montmorillonite prepared in the step S1 into a zinc nitrate aqueous solution, carrying out ultrasonic treatment for 15min, filtering, drying at 80 ℃ for 4h, and roasting at 500 ℃ for 2h to obtain the antibacterial montmorillonite, wherein the concentration of the zinc nitrate aqueous solution is 2.5 g/L;
s3, preparing a hexadecyl trimethyl ammonium bromide aqueous solution with the mass concentration of 3%, adding the sodium-based montmorillonite prepared in the step S1, heating to 50 ℃, stirring for reaction for 30min, filtering, drying and crushing to obtain organic montmorillonite;
s4, adding the organic montmorillonite obtained in the step S3 into mixed oil, uniformly mixing the organic montmorillonite with the mixed oil for later use, wherein the mixed oil is prepared by mixing styrene and n-hexadecane according to the volume ratio of 1: 1, and the addition amount of the glass beads in the mixed oil is 120 g/L;
s5, adding sodium dodecyl sulfate and sodium bicarbonate into deionized water to dissolve to obtain a water phase, wherein the mass concentration of the sodium dodecyl sulfate is 3%, the mass concentration of the sodium bicarbonate is 3%, adding the mixed oil obtained in the step S4 into the water phase, performing ultrasonic treatment and stirring for 15min to obtain an emulsion, and the rotating speed during stirring is 400r/min, wherein the volume ratio of the mixed oil to the water phase is 1: 0.5;
SS6, heating the emulsion obtained in the last step in a water bath to 75 ℃, adding an ammonium persulfate initiator into the emulsion, heating for reaction for 4 hours, filtering, drying and drying to obtain an antibacterial filler;
the preparation method of the modified glass bead filler comprises the following steps:
SS1, adding glass beads into deionized water, stirring and mixing to form a suspension, wherein the addition amount of the glass beads in the deionized water is 120 g/L, heating in a water bath, keeping the temperature at 50 ℃, adding sodium dodecyl benzene sulfonate into the deionized water while stirring, keeping the mass concentration of a sodium dodecyl benzene sulfonate solution at 0.8%, stirring and treating for 20min, filtering, taking out the glass beads, and drying for 20min at the temperature of 60 ℃;
SS2, preparing a polyvinyl alcohol aqueous solution with the mass concentration of 1%, cooling to below 25 ℃, adding the glass beads prepared in the step SS1, stirring and dispersing, keeping stirring, dropwise adding titanium tetrachloride into the mixture until the volume concentration of the titanium tetrachloride aqueous solution is 10%, stopping adding the titanium tetrachloride, and stirring and reacting at a constant temperature of 50 ℃ for 4 hours;
in the processes of dropwise adding titanium tetrachloride and stirring at constant temperature for reaction, continuously dropwise adding a sodium hydroxide solution into the solution, and adjusting the pH value of the solution to 3-3.5;
SS3, filtering the product obtained in the step SS2 to obtain glass beads, washing the glass beads with ethanol, drying the glass beads for 2 hours at the temperature of 60-DEG C, grinding and dispersing the glass beads, adding the dispersed glass beads into a muffle furnace, drying the glass beads for 2 hours at the temperature of 650 ℃, taking out the glass beads, cooling the glass beads to the normal temperature, and grinding and dispersing the glass beads to obtain a glass bead intermediate;
SS4, treating the glass bead intermediate prepared in the step SS3 through a silane coupling agent, improving the surface oleophobic property of the glass bead intermediate, adding the treated glass bead intermediate into mixed oil, uniformly mixing for later use, wherein the mixed oil is prepared by mixing styrene and n-hexadecane according to the volume ratio of 1: 2, and the adding amount of the glass beads in the mixed oil is 120 g/L;
SS5, adding sodium dodecyl sulfate and sodium bicarbonate into deionized water to dissolve to obtain a water phase, wherein the mass concentration of the sodium dodecyl sulfate is 3%, the mass concentration of the sodium bicarbonate is 3%, adding the mixed oil obtained in the step SS4 into the water phase, performing ultrasonic treatment and stirring for 20min to obtain an emulsion, and the rotating speed during stirring is 200r/min to avoid the glass beads from being broken in a large amount, wherein the volume ratio of the mixed oil to the water phase is 1: 0.5;
and SS6, heating the emulsion obtained in the last step in a water bath to 75 ℃, adding ammonium persulfate into the emulsion, heating for reaction for 4 hours, filtering, drying and drying to obtain the modified glass bead filler.
Analysis of Experimental data and results
The tensile strength (GB/T1040-2006), flame retardancy (U L94), antibacterial property (QB/T2591-2003, under natural light conditions) and heat distortion temperature (ISO752) of the ABS materials prepared in example 1 and example 2 were respectively tested, and the specific results are shown in Table 1:
TABLE 1
| Detecting items | Tensile strength | Flame retardancy | Escherichia coli | Staphylococcus aureus | Thermal deformation temperature |
| Example 1 | 43.6 | VO | ≥87％ | ≥93％ | 87 |
| Example 2 | 42.4 | VO | ≥91％ | ≥90％ | 91 |
The results in table 1 show that the flame-retardant high-strength automobile interior ABS material has good flame-retardant antibacterial ability, good tensile strength and high thermal deformation temperature.
The foregoing is merely exemplary and illustrative of the present invention and various modifications, additions and substitutions may be made by those skilled in the art to the specific embodiments described without departing from the scope of the invention as defined in the following claims.
Claims (9)
1. The flame-retardant high-strength automobile interior ABS material is characterized by being prepared from the following raw materials in parts by weight: 60-80 parts of ABS resin, 5-10 parts of antibacterial filler, 6-15 parts of modified glass bead filler, 10-15 parts of flame retardant, 3-5 parts of auxiliary flame retardant, 0.8-2 parts of antioxidant, 0.4-1 part of lubricant, 0.5-3 parts of heat stabilizer and 1-2 parts of antistatic agent; the preparation method of the modified glass bead filler comprises the following steps:
SS1, adding glass beads into deionized water, stirring and mixing to form a suspension, wherein the addition amount of the glass beads in the deionized water is 70-120 g/L, heating in a water bath, keeping the temperature at 50-60 ℃, adding sodium dodecyl benzene sulfonate into the deionized water while stirring, keeping the mass concentration of the sodium dodecyl benzene sulfonate solution at 0.2-1%, stirring for 10-30min while keeping the temperature, filtering, taking out the glass beads, and drying for 10-30min at the temperature of 50-70 ℃;
SS2, preparing a polyvinyl alcohol aqueous solution with the mass concentration of 0.5-2%, cooling to below 25 ℃, adding the glass beads prepared in the step SS1, stirring and dispersing, keeping stirring, dropwise adding titanium tetrachloride into the mixture until the volume concentration of the titanium tetrachloride aqueous solution is 8-12%, stopping adding the titanium tetrachloride, and stirring at the constant temperature of 50-60 ℃ for reaction for 4-5 hours;
SS3, filtering the product obtained in the step SS2 to obtain glass beads, washing the glass beads with ethanol, drying the glass beads for 2 to 3 hours at the temperature of between 60 and 70 ℃, grinding and dispersing the glass beads, adding the dispersed glass beads into a muffle furnace, drying the glass beads for 1 to 2 hours at the temperature of between 600 and 650 ℃, taking out the glass beads, cooling the glass beads to the normal temperature, and grinding and dispersing the glass beads to obtain glass bead intermediates;
SS4, treating the glass bead intermediate prepared in the step SS3 by using a silane coupling agent to improve the surface oleophobic property of the glass bead intermediate, adding the treated glass bead intermediate into mixed oil, uniformly mixing for later use, wherein the mixed oil is prepared by mixing styrene and n-hexadecane according to the volume ratio of 1: 1-3, and the adding amount of the glass beads in the mixed oil is 60-130 g/L;
SS5, adding sodium dodecyl sulfate and sodium bicarbonate into deionized water to dissolve to obtain a water phase, wherein the mass concentration of the sodium dodecyl sulfate is 1% -5%, the mass concentration of the sodium bicarbonate is 2% -4%, adding the mixed oil obtained in the step SS4 into the water phase, performing ultrasonic treatment and stirring for 15-30min to obtain an emulsion, and the rotating speed during stirring is 200-300r/min to avoid the glass beads from being broken in a large amount, wherein the volume ratio of the mixed oil to the water phase is 1: 0.4 to 1;
and SS6, heating the emulsion obtained in the last step in a water bath to 70-75 ℃, adding ammonium persulfate into the emulsion, heating to react for 3.5-4.5h, filtering, drying and drying to obtain the modified glass bead filler.
2. The preparation method of the flame-retardant high-strength automobile interior ABS material according to claim 1, characterized by comprising the following steps:
adding the components into a high-speed mixer according to the weight parts and the formula composition, uniformly mixing, adding the mixed materials into a double-screw extruder, carrying out melt blending, extruding and granulating, wherein the extrusion temperature of the extruder is 180-200 ℃, and obtaining the flame-retardant high-strength automobile interior ABS material.
3. The ABS material for flame retardant high strength automobile interior according to claim 1, wherein in the step SS2, during the reaction of adding titanium tetrachloride and stirring at constant temperature, sodium hydroxide solution is continuously added dropwise to the solution to adjust the pH value of the solution to 3-3.5.
4. The flame-retardant high-strength automobile interior ABS material as claimed in claim 1, wherein the flame retardant is antimony trioxide, and the auxiliary flame retardant is one or a mixture of at least two of triphenyl phosphate, sodium antimonate, zinc borate and talc powder in any ratio.
5. The flame-retardant high-strength automobile interior ABS material as claimed in claim 1, wherein the antioxidant is one or a mixture of at least two of phosphite ester and thioester.
6. The flame-retardant high-strength automobile interior ABS material as claimed in claim 1, wherein the lubricant is one or a mixture of at least two of silicone oil, ethylene homopolywax, white mineral oil, calcium stearate and pentaerythritol stearate.
7. The flame-retardant high-strength automobile interior ABS material as claimed in claim 1, wherein the heat stabilizer is one or a mixture of at least two of zinc stearate, magnesium stearate and calcium stearate.
8. The flame-retardant high-strength automobile interior ABS material as recited in claim 1, wherein the antistatic agent is one of ethoxylated alkylamine, glycerol monostearate and alkyl sulfonate.
9. The flame-retardant high-strength automobile interior ABS material as claimed in claim 1, wherein the preparation method of the antibacterial filler comprises the following steps:
s1, adding montmorillonite into deionized water, soaking for 16-24h, boiling upper layer colloid in water, standing, cooling, removing bottom sediment, adding sodium bicarbonate into the suspension, heating to 40-60 ℃, stirring for reaction for 30-40min, filtering, drying, and pulverizing to obtain sodium montmorillonite;
s2, adding the sodium montmorillonite prepared in the step S1 into a zinc nitrate water solution, carrying out ultrasonic treatment for 10-20min, drying at 60-90 ℃ for 4-5h after filtering, and roasting at 400-500 ℃ for 1.5-2h to obtain the antibacterial montmorillonite;
s3, preparing a hexadecyl trimethyl ammonium bromide aqueous solution with the mass concentration of 2% -7%, adding the sodium-based montmorillonite prepared in the step S1, heating to 40-60 ℃, stirring for reacting for 30-40min, filtering, drying and crushing to obtain organic montmorillonite;
s4, adding the organic montmorillonite obtained in the step S3 into mixed oil, uniformly mixing the organic montmorillonite with the mixed oil for later use, wherein the mixed oil is prepared by mixing styrene and n-hexadecane according to the volume ratio of 1: 1-3, and the adding amount of glass beads in the mixed oil is 60-130 g/L;
s5, adding sodium dodecyl sulfate and sodium bicarbonate into deionized water to dissolve to obtain a water phase, wherein the mass concentration of the sodium dodecyl sulfate is 1% -5%, the mass concentration of the sodium bicarbonate is 2% -4%, adding the mixed oil obtained in the step S4 into the water phase, performing ultrasonic treatment and stirring for 10-20min to obtain an emulsion, and the rotating speed during stirring is 200-600r/min, wherein the volume ratio of the mixed oil to the water phase is 1: 0.4 to 1;
s6, heating the emulsion obtained in the last step in a water bath to 70-75 ℃, adding an ammonium persulfate initiator into the emulsion, heating to react for 3.5-4.5h, filtering, drying and drying to obtain the antibacterial filler.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112175263A (en) * | 2020-09-22 | 2021-01-05 | 苏州市桔园管业有限公司 | High-toughness flame-retardant heat-insulation pipe |
| CN112940439A (en) * | 2021-03-02 | 2021-06-11 | 宁波福尔达智能科技有限公司 | Flame-retardant ABS composite material and preparation process thereof |
| CN114058135A (en) * | 2021-12-07 | 2022-02-18 | 海信视像科技股份有限公司 | Composite ABS material with metal spraying-free effect, metal filler and preparation method |
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2020
- 2020-05-20 CN CN202010431825.4A patent/CN111484703A/en not_active Withdrawn
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112175263A (en) * | 2020-09-22 | 2021-01-05 | 苏州市桔园管业有限公司 | High-toughness flame-retardant heat-insulation pipe |
| CN112940439A (en) * | 2021-03-02 | 2021-06-11 | 宁波福尔达智能科技有限公司 | Flame-retardant ABS composite material and preparation process thereof |
| CN112940439B (en) * | 2021-03-02 | 2021-09-28 | 宁波福尔达智能科技股份有限公司 | Flame-retardant ABS composite material and preparation process thereof |
| CN114058135A (en) * | 2021-12-07 | 2022-02-18 | 海信视像科技股份有限公司 | Composite ABS material with metal spraying-free effect, metal filler and preparation method |
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