Flame-retardant plastic material and manufacturing method thereof
AssigneeSamsung Electronics Co., Ltd.
InventorsMiran Kim, Nohcheol Park, Youngdeog Koh, Kwangjoo Kim, Jongun Choi
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Abstract
A flame-retardant plastic material composition including polypropylene resin, magnesium hydroxide, melamine-based resin, talc, rubber, and coupling agent, where the flame-retardant plastic material composition includes 30 to 45 parts by weight (wt %) of the magnesium hydroxide and 8 to 20 parts by weight (wt %) of the talc based on 100 parts by weight (wt %) of flame-retardant plastic material composition, and a tensile strength is from 130 to 600 kgf/cm2.
Claims14
A flame-retardant plastic material composition, comprising:
- polypropylene resin, magnesium hydroxide, melamine-based resin, talc, rubber, and coupling agent,
- wherein the flame-retardant plastic material composition includes:
- 30 to 45 parts by weight (wt %) of the magnesium hydroxide, and
- 8 to 20 parts by weight (wt %) of the talc based on 100 parts by weight (wt %) of the flame-retardant plastic material composition,
- wherein a tensile strength of the flame-retardant plastic material composition is from 130 to 600 kgf/cm2, and
- wherein an impact strength of the flame-retardant plastic material composition is from 6 to 50 kgf·cm/cm.
A method of manufacturing a flame-retardant plastic material composition, the method comprising:
- mixing a plastic material precursor comprising:
- 24 to 35 parts by weight (wt %) of polypropylene resin based on 100 parts by weight (wt %) of the flame-retardant plastic material composition,
- 30 to 45 parts by weight (wt %) of magnesium hydroxide based on 100 parts by weight (wt %) of the flame-retardant plastic material composition,
- 8 to 20 parts by weight (wt %) of melamine-based resin based on 100 parts by weight (wt %) of the flame-retardant plastic material composition,
- 8 to 20 parts by weight (wt %) of talc based on 100 parts by weight (wt %) of the flame-retardant plastic material composition,
- 5 to 15 parts by weight (wt %) of rubber based on 100 parts by weight (wt %) of the flame-retardant plastic material composition,
- 0.5 to 3 parts by weight (wt %) of coupling agent based on 100 parts by weight (wt %) of the flame-retardant plastic material composition, and
- other inevitable impurities based on 100 parts by weight (wt %) of the flame-retardant plastic material composition;
- and
- extruding the plastic material precursor,
- wherein an impact strength of the flame-retardant plastic material composition is from 6 to 50 kgf·cm/cm.
A home appliance comprising:
- a printed circuit board (PCB);
- and
- a housing to surround the PCB, the housing including a flame-retardant plastic material composition, and
- wherein the flame-retardant plastic material composition comprises polypropylene resin, magnesium hydroxide, melamine-based resin, talc, rubber, and coupling agent,
- wherein content of the magnesium hydroxide is from 30 to 45 parts by weight (wt %) and content of the talc is from 8 to 20 parts by weight (wt %) based on 100 parts by weight (wt %) of the flame-retardant plastic material composition, and
- wherein an impact strength of the flame-retardant plastic material composition is from 6 to 50 kgf·cm/cm.
Dependencies are inferred from the claim text.