CN103665554B - A kind of automotive upholstery heat-resistance polypropylene material 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-550? 2-3, aluminum sulfate 23-25, glycerol triacetate 8-10, sodium hexametaphosphate 3-4, hexamethyl Phosphorus triamide 1-2, anti-aging agent NBC1-2, hard kaolin 12-15, additives 6-9; the invention adds additives, which can enhance the heat resistance of isotactic polypropylene, and has low density and high quality Light, wear-resistant, conducive 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.

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-5502-3, aluminum sulfate 23-25, glycerol triacetate 8-10, sodium hexametaphosphate 3-4, hexamethylphosphoric acid triamine 1-2, anti-aging Agent NBC1-2, Hard Kaolin 12-15, Auxiliary 6-9;

The auxiliary agent is made of the following raw materials in parts by weight: the auxiliary agent is made of the following raw materials in parts by weight: clay 10-12, corundum powder 3-4, anti-aging agent ODA1-2, titanate coupling agent TMC -TTS3-4, ammonium dihydrogen phosphate 1-2, magnetite 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 and calcinate at 720-740°C for 2 -3 hours, then, take it out, send it into 10-15% hydrochloric acid solution and soak for 2-3 hours, filter to get the filter residue, wash it with clear water, dry and grind it into 400-600 mesh powder; the gained powder and The remaining ingredients are mixed, heated to 60-70°C, stirred 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 description

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-5502, 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 ODA1, titanate coupling agent TMC-TTS3, ammonium dihydrogen phosphate 1, magnet 4, zinc stearate 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 send clay and magnet Put it into a calciner 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 water, dry it, and grind it Form into a 400-600 mesh powder; mix the obtained powder with other remaining ingredients, heat to 60-70°C, stir and react for 40-50 minutes, cool, and grind 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, be made up of the raw material of following weight part: 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, HMPA 1-2, antioxidant NBC 1-2, hard kaoline 12-15, auxiliary agent 6-9; Described auxiliary agent is made up of the raw material of following weight part: clay 10-12, lapis amiridis 3-4, anti-aging agent ODA1-2, titanate coupling agent TMC-TTS3-4, primary ammonium phosphate 1-2, magnetite 3-4, Zinic stearas 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; Clay, magnetite are sent in calcining furnace and calcine 2-3 hour at 720-740 DEG C by preparation method, then, take out, send in the hydrochloric acid soln of 10-15% and soak 2-3 hour, filter, obtain filter residue, clean, dry, grind to form 400-600 order powder with clear water; Gained powder mixes with other remaining component, is heated to 60-70 DEG C, stirring reaction 40-50 minute, and cooling, grinds to form slurry, to obtain final product.

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