CN103665554A - Heat-resistant polypropylene material for automobile interior trim parts and preparation method thereof - Google Patents

Abstract

The invention discloses a heat-resistant polypropylene material for automotive interior parts, which is characterized in that it is made of the following raw materials in parts by weight: isotactic polypropylene 80-90, montmorillonite 14-18, polystyrene 30- 34. PP resin 9-13, accelerator M1-2, silane coupling agent KH-5502-3, aluminum sulfate 23-25, glycerol triacetate 8-10, sodium hexametaphosphate 3-4, hexamethylphosphorus Acyl triamine 1-2, anti-aging agent NBC1-2, hard kaolin 12-15, auxiliary agent 6-9; the present invention adds auxiliary agent, can strengthen the heat resistance of isotactic polypropylene, and density is low, light weight, Wear-resistant, beneficial to application, smooth processing, high production efficiency, low cost and excellent comprehensive performance.

Description

Heat-resistant polypropylene material for automotive interior parts and preparation method thereof

technical field

The invention relates to a composite material for automobile interior decoration, in particular to a heat-resistant polypropylene material for automobile interior decoration and a preparation method thereof.

Background technique

Isotactic polypropylene is a thermoplastic resin that can be prepared by polymerizing propylene. It not only has the advantages of good processability, high toughness, good gasoline and chemical resistance, but also is light in weight and cheap, so it is widely used. For example, it can be used to produce products such as interior and exterior trim parts of automobiles and parts of household appliances. However, pure isotactic polypropylene is relatively insufficient in heat resistance and rigidity, and cannot better meet the requirements of products. the

Contents of the invention

The object of the present invention is to provide a heat-resistant polypropylene material for automotive interior parts and a preparation method thereof.

In order to realize the purpose of the present invention, the present invention is implemented through the following schemes:

A heat-resistant polypropylene material for automotive interior parts, made of the following raw materials in parts by weight: isotactic polypropylene 80-90, montmorillonite 14-18, polystyrene 30-34, PP resin 9-13, Accelerator M1-2, silane coupling agent KH-550 2-3, aluminum sulfate 23-25, glycerol triacetate 8-10, sodium hexametaphosphate 3-4, hexamethylphosphoric triamine 1-2, Antiaging agent NBC1-2, hard kaolin 12-15, additives 6-9;

The auxiliary agent is made of the following raw materials by weight: the auxiliary agent is made of the following raw materials by weight: clay 10-12, corundum powder 3-4, antioxidant ODA 1-2, titanate coupling agent TMC-TTS 3-4, ammonium dihydrogen phosphate 1-2, magnet 3-4, zinc stearate 2-3, triethyl citrate 35-40, propyl gallate 3-4, nano titanium dioxide 0.2-0.3 , nano diatomite powder 1-2, coix seed oil 2-3, vanadium diboride 1-2, epicatechin 2-3; the preparation method is to put clay and magnet into a calciner at 720-740°C Calcined for 2-3 hours, then taken out, put into 10-15% hydrochloric acid solution and soaked for 2-3 hours, filtered to obtain filter residue, washed with water, dried and ground into 400-600 mesh powder; the obtained powder The body is mixed with other remaining ingredients, heated to 60-70°C, stirred and reacted for 40-50 minutes, cooled, ground into a slurry, and obtained.

The heat-resistant polypropylene material for automotive interior parts of the present invention is made by the following specific steps: heating isotactic polypropylene to a molten state, adding aluminum sulfate, glycerol triacetate, sodium hexametaphosphate, hexamethylphosphorus Acid triamine, antioxidant NBC, and hard kaolin are stirred and kneaded for 20-25 minutes; then add additives and other remaining ingredients, heat to 200-220°C, stir for 7-10 minutes, and send them to a twin-screw extruder for melt extrusion Granulate and cool down.

The excellent effects of the present invention are: the present invention adds additives, which can enhance the heat resistance of isotactic polypropylene, and has low density, light weight, wear resistance, which is beneficial to application, smooth processing, high production efficiency, low cost and comprehensive performance excellent.

Detailed ways

The present invention will be described in detail below through specific examples.

A heat-resistant polypropylene material for automotive interior parts, made of the following raw materials in parts by weight (kg): isotactic polypropylene 80, montmorillonite 14, polystyrene 30, PP resin 9, accelerator M1, silane Coupling agent KH-550 2, aluminum sulfate 23, glycerol triacetate 8, sodium hexametaphosphate 3, hexamethylphosphoric acid triamine 1, anti-aging agent NBC1, hard kaolin 12, auxiliary agent 6;

The auxiliary agent is made of the following raw materials in parts by weight (kg): clay 10, corundum powder 3, antioxidant ODA 1, titanate coupling agent TMC-TTS 3, ammonium dihydrogen phosphate 1, magnet 4, stearate Zinc acid 2, triethyl citrate 35, propyl gallate 3, nano titanium dioxide 0.2, nano diatomite powder 1, coix seed oil 3, vanadium diboride 1, epicatechin 2; the preparation method is to mix clay, Put the magnet into the calcination furnace and calcinate at 720-740°C for 2-3 hours, then take it out, soak it in 10-15% hydrochloric acid solution for 2-3 hours, filter to get the filter residue, wash it with clean water, and dry it 1. Grinding to 400-600 mesh powder; mixing the obtained powder with other remaining ingredients, heating to 60-70°C, stirring for 40-50 minutes, cooling, and grinding to form a slurry.

The heat-resistant polypropylene material for automotive interior parts of the present invention is made by the following specific steps: heating isotactic polypropylene to a molten state, adding aluminum sulfate, glycerol triacetate, sodium hexametaphosphate, hexamethylphosphorus Acid triamine, antioxidant NBC, and hard kaolin are stirred and kneaded for 20-25 minutes; then add additives and other remaining ingredients, heat to 200-220°C, stir for 7-10 minutes, and send them to a twin-screw extruder for melt extrusion Granulate and cool down.

The obtained product was tested by ISO standard, and the melt index obtained by the test was 18g/10min, the tensile strength was 26.5Mpa, the bending strength was 37.2Mpa, and the bending modulus was 1850Mpa.

Claims (2)

1. an automotive upholstery heat-resistance polypropylene material, it is characterized in that, by the raw material of following weight part, made: isotatic polypropylene 80-90, polynite 14-18, polystyrene 30-34, PP resin 9-13, captax 1-2, silane resin acceptor kh-550 2-3, Tai-Ace S 150 23-25, Vanay 8-10, Sodium hexametaphosphate 99 3-4, the cruel triamine 1-2 of hempa, antioxidant NBC 1-2, hard kaoline 12-15, auxiliary agent 6-9;

Described auxiliary agent is made by the raw material of following weight part: described auxiliary agent is made by the raw material of following weight part: clay 10-12, lapis amiridis 3-4, anti-aging agent ODA 1-2, titanate coupling agent TMC-TTS 3-4, primary ammonium phosphate 1-2, magnetite 3-4, Zinc Stearate 2-3, triethyl citrate 35-40, Tenox PG 3-4, nano titanium oxide 0.2-0.3, nano diatomite powder 1-2, coix seed oil 2-3, vanadium diboride 1-2, l-Epicatechol 2-3; Preparation method sends into clay, magnetite in calcining furnace and calcine 2-3 hour at 720-740 ℃, then, takes out, and sends in the hydrochloric acid soln of 10-15% and soaks 2-3 hour, filters, and obtains filter residue, with clear water, cleans, and dries, grinds to form 400-600 order powder; Gained powder mixes with other remaining component, is heated to 60-70 ℃, and stirring reaction 40-50 minute is cooling, grinds to form slurry, obtains.

2. automotive upholstery heat-resistance polypropylene material according to claim 1, it is characterized in that, by following concrete steps, made: isotatic polypropylene is heated to molten state, adds Tai-Ace S 150, Vanay, Sodium hexametaphosphate 99, the cruel triamine of hempa, antioxidant NBC, hard kaoline to stir and mediate 20-25 minute; Add again auxiliary agent and all the other remaining components, be heated to 200-220 ℃, stir 7-10 minute, send into and on twin screw extruder, melt extrude granulation, cooling and get final product.