Polypropylene material and preparation method thereof for a kind of automotive upholstery
Technical field
The present invention relates to a kind of automotive trim matrix material, particularly polypropylene material and preparation method thereof for a kind of automotive upholstery.
Background technology
Isotatic polypropylene (PP) has that density is little, cost performance is high, excellent resistance toheat, rigidity, resistance to corrosive chemicals, be easy to the advantages such as machine-shaping and recovery, it is widely used on automobile, become maximum, the with the fastest developing speed kind of consumption in automotive plastic.But PP material thermal resistance is poor, rigidity is low, impelling strength is low, and surface hardness is low with respect to other material, particularly adds after talcum powder, and scratch resistant performance is poor, these defects have seriously restricted the application of isotatic polypropylene at automotive field.Therefore, the surperficial scratch resistant performance of raising PP material has great importance.
Summary of the invention
The object of this invention is to provide polypropylene material and preparation method thereof for a kind of automotive upholstery.
In order to realize object of the present invention, the present invention passes through following scheme implementation:
An automotive upholstery polypropylene material, is made by the raw material of following weight part: isotatic polypropylene 100-120, talcum powder 30-34, Z 250 powder 12-15,2-ethylhexyl diphenyl phosphate 5-6, polyvinyl alcohol 12-15, metallocene linear-low density polyethylene 12-15, Tyox B 2-3, lignocellulose 3-4, SBS20-23, auxiliary agent 7-9;
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.
Automotive upholstery polypropylene material of the present invention, is made by following concrete steps: isotatic polypropylene is heated to molten state, adds talcum powder, Z 250 powder, 2-ethylhexyl diphenyl phosphate, polyvinyl alcohol to stir and mediate 15-25 minute; Add again auxiliary agent and all the other remaining components, be heated to 150-170 ℃, stir 7-10 minute, send into and on twin screw extruder, melt extrude granulation, cooling and get final product.
Excellent effect of the present invention is: the strong and unyielding comparatively balance of material of the present invention, and scratch-resistant is good, cost is low and excellent combination property, and cocoa is widely used in true qualities and the medium-to-high grade inner and outer decorative parts of automobile of other colors.
Embodiment
Below by specific examples, the present invention is described in detail.
An automotive upholstery polypropylene material, by following weight part (kilogram) raw material make: isotatic polypropylene 100, talcum powder 30, Z 250 powder 12,2-ethylhexyl diphenyl phosphate 5, polyvinyl alcohol 12, metallocene linear-low density polyethylene 12, Tyox B 2, lignocellulose 3, SBS20, auxiliary agent 7;
Described auxiliary agent by following weight part (kilogram) raw material make: clay 10, lapis amiridis 3, anti-aging agent ODA 1, titanate coupling agent TMC-TTS 3, primary ammonium phosphate 1, magnetite 4, Zinc Stearate 2, triethyl citrate 35, Tenox PG 3, nano titanium oxide 0.2, nano diatomite powder 1, coix seed oil 3, vanadium diboride 1, l-Epicatechol 2; 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.
Automotive upholstery polypropylene material of the present invention, is made by following concrete steps: isotatic polypropylene is heated to molten state, adds talcum powder, Z 250 powder, 2-ethylhexyl diphenyl phosphate, polyvinyl alcohol to stir and mediate 15-25 minute; Add again auxiliary agent and all the other remaining components, be heated to 150-170 ℃, stir 7-10 minute, send into and on twin screw extruder, melt extrude granulation, cooling and get final product.
Products obtained therefrom is tested through iso standard, and melting that test obtains refers to be that 18g/10min, tensile strength are that 26.5Mpa, flexural strength are that 37.2Mpa, modulus in flexure are 1850Mpa.