Non-paint metallic Polypropylene resin composite having whitening resistance
A technology of polypropylene resin and resin composition, which is applied in the field of polypropylene resin composition, can solve the problems of high defect rate and weak whitening resistance, and achieve the effects of improved scratch resistance, reduced defect rate and excellent metal texture
Pending Publication Date: 2019-07-19
HANWHA TOTAL ENERGIES PETROCHEMICAL CO LTD
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Problems solved by technology
[0005] Korean Registered Patent No. 10-2016-0060502 relates to the manufacture of a polypropylene resin composition for non-coating that can maintain the mechanical properties of electrical and electronic products and automotive interior / exterior parts, and has high gloss and improved scratch resistance. Weak resistance to whitening, leading to high defect rate of final products
Method used
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Embodiment 1～2 and comparative example 1～4
[0039] Examples 1-2 and Comparative Examples 1-4, manufacture of metal polypropylene resin composition
[0040] The components shown below were weighed according to the content ratio in Table 6 below, and placed in a kneading extruder (manufactured by SM Platec, 32 mm in diameter, L / D 40:1) and kneaded to produce a resin composition.
[0041] Composition
[0042] [Table 1] Polypropylene resin
[0043]
[0044] [Table 2] Polyethylene resin
[0045]
[0046] [Table 3] Olefin rubber
[0047]
[0049] talc Average particle size (μm) Talc-1 0.5～6.0
[0050] [Table 5] Metal particles
[0051] metal particles Average particle size (μm) shape Al-1 24 coin shape Al-3 42 coin shape
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The invention relates to a non-paint metallic polypropylene resin composite having whitening resistance. Specifically, the present invention provides a non-paint metallic polypropylene resin composite, capable of alleviating and preventing whitening of parts due to external impact when provided to automobile interior and exterior parts and electrical and electronic products interior and exterior parts formed by MIC (molded in color) method. The resin composition includes a polypropylene block copolymer (block PP), an inorganic filler, an olefinic rubber component, and an ethylene-propylene dyne monomer rubber component, and has dimensions compared to those of the existing polypropylene, inorganic filler, and olefinic rubber components. The present invention relates to a polypropylene resincomposition having improved stability and an automobile exterior molded article prepared therefrom.
Description
technical field [0001] The present invention relates to a polypropylene resin composition which can be used in the molding by color (MIC) method and minimizes the whitening phenomenon caused by external impact. Specifically, it relates to parts substrates that are exposed as they are due to unpainted (coated paint), and whitening phenomenon that easily occurs on the surface due to impact during injection molding, post-processing and transportation, but parts formability and mechanical A resin composition and its molded article that impart whitening resistance to the surface without causing a difference in physical properties. Background technique [0002] For the non-coating metal polypropylene resin composition using the MIC (molded in color) method, by omitting the coating (under coating) process, there will be no damage caused by the use of too much solvent. Due to environmental problems and rising costs, the development of this material has been attempted as a substitut...
Claims
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Patent Timeline
Login to View More IPC IPC(8): C08L53/02C08L23/06C08L23/08C08K13/02C08K3/34C08K3/08C08K3/36
CPCC08K2201/003C08L53/02C08L2205/025C08L2205/035C08L2207/062C08L23/06C08L23/0815C08K13/02C08K3/34C08K3/08C08K3/36C08F10/06C08F2500/15C08F2500/18C08J3/226C08K2201/005C08L23/14C08L23/16
Inventor 李伦环韩载昊
Owner HANWHA TOTAL ENERGIES PETROCHEMICAL CO LTD
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