Low temperature resistant halogen-free flame-retardant light scattering polypropylene composition and preparation method thereof

A polypropylene composition and light diffusion technology, applied in the field of polymer composite materials, can solve the problems of potential safety hazards, limited application fields, poor flame retardancy of light diffusion PP materials, etc., and achieve good flame retardancy, high impact, soft light effect

Active Publication Date: 2015-10-28
GUANGZHOU KEYUAN INNOVATIVE MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Patent CN103450560A granulated PP, nano-barium sulfate light diffusing agent, processing aids and other modifiers to prepare light diffusing PP material, but the flame retardancy of light diffusing PP material itself is not good, and there will be problems in fire prevention. big security risk
Patent CN104292637A uses bromine-antimony flame retardant to extrude the light-diffusing PP material to contain a large amount of halogen elements (bromine), which will greatly limit its application field

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] A low-temperature-resistant halogen-free flame-retardant light-diffusing polypropylene composition, which includes the following components by weight: 87.5% polypropylene, 2% toughening agent, 3% phase solvent, 5% halogen-free flame retardant, and fire-resistant liquid oil 1%, light diffusing agent 0.5%, light stabilizer 0.5%, antioxidant 0.5%.

[0037] The polypropylene is a high-viscosity and high-rigidity homopolypropylene with a melt index of 1 to 15g / 10min, preferably Maoming Petrochemical PPHT03; the toughening agent is a maleic anhydride grafted ethylene-octene polymer, preferably Nantong Rizhisheng CMG9805; the phase solvent is maleic anhydride grafted polypropylene, preferably Nantong Rizhisheng CMG9801; the halogen-free flame retardant is a kind of superfine polypropylene flame retardant with phosphorus and nitrogen as flame retardant elements agent, the particle size is 10-15 nanometers, preferably EPFR-100C from Qingyuan Prosafefos Chemical Co., Ltd.; the fi...

Embodiment 2

[0045] A low-temperature-resistant halogen-free flame-retardant light-diffusing polypropylene composition, which includes the following components by weight: 84% polypropylene, 5% toughening agent, 3% phase solvent, 5% halogen-free flame retardant, and fire-resistant liquid oil 1%, light diffusing agent 1%, light stabilizer 0.5%, antioxidant 0.5%.

[0046] The polypropylene is a high-viscosity and high-rigidity homopolypropylene with a melt index of 1 to 15g / 10min, preferably Maoming Petrochemical PPHT03; the toughening agent is a maleic anhydride grafted ethylene-octene polymer, preferably Nantong Rizhisheng CMG9805; the phase solvent is maleic anhydride grafted polypropylene, preferably Nantong Rizhisheng CMG9801; the halogen-free flame retardant is a kind of superfine polypropylene flame retardant with phosphorus and nitrogen as flame retardant elements agent, the particle size is 10-15 nanometers, preferably EPFR-100C from Qingyuan Prosafefos Chemical Co., Ltd.; the fire-r...

Embodiment 3

[0054] A low-temperature-resistant halogen-free flame-retardant light-diffusing polypropylene composition, which includes the following components by weight: 84% polypropylene, 3% toughening agent, 3% phase solvent, 7% halogen-free flame retardant, and fire-resistant liquid oil 1%, light diffusing agent 1%, light stabilizer 0.5%, antioxidant 0.5%.

[0055] The polypropylene is a high-viscosity and high-rigidity homopolypropylene with a melt index of 1 to 15g / 10min, preferably Maoming Petrochemical PPHT03; the toughening agent is a maleic anhydride grafted ethylene-octene polymer, preferably Nantong Rizhisheng CMG9805; the phase solvent is maleic anhydride grafted polypropylene, preferably Nantong Rizhisheng CMG9801; the halogen-free flame retardant is a kind of superfine polypropylene flame retardant with phosphorus and nitrogen as flame retardant elements agent, the particle size is 10-15 nanometers, preferably EPFR-100C from Qingyuan Prosafefos Chemical Co., Ltd.; the fire-r...

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Abstract

The invention provides a low temperature resistant halogen-free flame-retardant light scattering polypropylene composition and a preparation method thereof. The composition comprises the following components: 72-92.7% of PP resin, 2-5% of flexibilizer, 3-5% of biphasic solvent, 1-10% of halogen-free fire retardant, 1-5% of fireproof liquid oil, 0.1-2% of light scattering agent, 0.1-0.5% of light stabilizing agent, and 0.1-0.5% of anti-oxidant. The composition is prepared by the following steps: baking the PP resin at 70-90 DEG C with an air blast baking oven for 10-14 hours, and controlling the water content below 0.02%; stirring the baked PP resin, the flexibilizer and the biphasic solvent and the liquid fireproof oil according to a proportion in a feed mixer for 3-5 minutes; adding the light scattering agent, the light stabilizing agent and the anti-oxidant, and stirring for 2-4 minutes; adding the halogen-free fire retardant, stirring for 2-4 minutes, and for uniformly mixing the components together; adding the fully mixed materials into a double screw extruder for carrying out extrusion granulation. The low temperature resistant halogen-free flame-retardant light scattering polypropylene material provided by the invention has the advantages of high light transmittance, high haze, good flame retardation performance and impact resistance.

Description

technical field [0001] The invention relates to the technical field of polymer composite materials, and relates to a low-temperature-resistant halogen-free flame-retardant light-diffusing polypropylene composition and a preparation method thereof. Background technique [0002] Now the country is promoting a low-carbon, environmentally friendly, and energy-saving lifestyle, and LED lights will replace incandescent and fluorescent lights due to their power-saving features, but the light emitted by the lamp beads is too strong, which is easy to damage the eyes. Therefore, there is an urgent need for a light-diffusing lampshade to hide lamp erosion and ensure high brightness. Polypropylene (PP) is a general-purpose plastic with superior comprehensive properties. Because of its excellent mechanical properties, electrical insulation, very low density, and relatively low price, it is widely used in the field of electronic lighting. Therefore, the LED light diffusion lampshade uses...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12C08L51/06C08K5/523C08K5/134C08K5/526B29C47/92B29C48/92
CPCB29C48/92B29C2948/92209C08K2201/014C08L23/12C08L2201/02C08L2201/22C08L2205/025C08L2205/03C08L51/06C08K5/523C08K5/1345C08K5/526
Inventor 针涛张扬张胜炀万兆荣黄少洲
Owner GUANGZHOU KEYUAN INNOVATIVE MATERIALS
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