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High-CTI (comparative tracking index) and high-light diffusivity flame-retardant PC (polycarbonate) compound and preparation method thereof

A compound and diffusion technology, which is applied in the field of high CTI, high light diffusivity flame retardant PC compound and its preparation, can solve problems such as the CIT value of unrelated materials, achieve excellent light diffusion performance and flame retardant performance, super high Effect of Tracking Resistance

Inactive Publication Date: 2015-08-26
南通市海门江海建设投资有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the above documents are all about improving the light diffusion performance of PC materials, and do not involve the CIT value of materials.

Method used

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  • High-CTI (comparative tracking index) and high-light diffusivity flame-retardant PC (polycarbonate) compound and preparation method thereof
  • High-CTI (comparative tracking index) and high-light diffusivity flame-retardant PC (polycarbonate) compound and preparation method thereof
  • High-CTI (comparative tracking index) and high-light diffusivity flame-retardant PC (polycarbonate) compound and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A flame-retardant PC composite material with high CTI and high light diffusivity, prepared from the following components and contents: 75 parts of polycarbonate, 1 part of light diffusing agent, 2 parts of polyethylene glycol, 0.1 part of antioxidant, 0.1 part of light stabilizer, 0.2 part of flame retardant, and 0.1 part of dispersant. The polycarbonate is a highly transparent polycarbonate; the light diffusing agent is microspherical calcium carbonate; the antioxidant is a phenolic antioxidant; the light stabilizer is a light shielding agent; Described dispersant is PE wax; Described flame retardant is the compounding of brominated polystyrene and ammonium polyphosphate by weight 1:1; Described polyethylene glycol is the PEG- 1000 (molecular weight 900 to 1100). Preparation method: weigh each raw material according to the proportion; put the above raw materials into a high-mixer and mix for 3-5 minutes, then discharge to obtain a mixture, and then control the process...

Embodiment 2

[0025] A flame-retardant PC composite material with high CTI and high light diffusivity, prepared from the following components and contents: 95 parts of polycarbonate, 6 parts of light diffusing agent, 8 parts of polyethylene glycol, 1 part of antioxidant, 0.5 parts of light stabilizer, 1.5 parts of flame retardant, and 0.5 parts of dispersant. The polycarbonate is a highly transparent polycarbonate; the light diffusing agent is microspherical silicon dioxide; the antioxidant is a phosphorus antioxidant; the light stabilizer is an ultraviolet absorber; Described dispersant is EVA wax; Described flame retardant is the composite of brominated polystyrene and ammonium polyphosphate by weight 1:1; Described polyethylene glycol is the PEG of Nantong Taichen Chemical Co., Ltd. -1500 (molecular weight of 1350 to 1650). Preparation method: weigh each raw material according to the proportion; put the above raw materials into a high-mixer and mix for 3-5 minutes, then discharge to obt...

Embodiment 3

[0027] A flame-retardant PC composite material with high CTI and high light diffusivity, prepared from the following components and contents: 80 parts of polycarbonate, 2 parts of light diffusing agent, 4 parts of polyethylene glycol, 0.3 parts of antioxidant, 0.2 parts of light stabilizer, 0.4 parts of flame retardant, and 0.4 parts of dispersant. The polycarbonate is a highly transparent polycarbonate; the light diffusing agent is microspherical barium sulfate; the antioxidant is a sulfur-based antioxidant; the light stabilizer is a quencher; Described dispersant is OP wax; Described flame retardant is the composite of brominated polystyrene and ammonium polyphosphate by weight 1:1; Described polyethylene glycol is the PEG- 2000 (molecular weight of 1800 to 2200). Preparation method: weigh each raw material according to the proportion; put the above raw materials into a high-mixer and mix for 3-5 minutes, then discharge to obtain a mixture, and then control the processing t...

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Abstract

The invention relates to a high-CTI (comparative tracking index) and high-light diffusivity flame-retardant PC (polycarbonate) compound. The high-CTI and high-light diffusivity flame-retardant PC compound is characterized by being prepared from the following raw materials in parts by weight: 75-95 parts of polycarbonate, 1-6 parts of a light dispersing agent, 2-8 parts of polyethylene glycol, 0.1-1 part of an antioxidant, 0.1-0.5 part of a light stabilizer, 0.2-1.5 parts of a flame retardant and 0.1-0.5 part of a dispersing agent. The invention further relates to a preparation method of the PC compound. The prepared PC compound has excellent light diffusion performance and flame retardant property, and ultra-high tracking resistance; and the CTI value can be up to 550V.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to a flame-retardant PC compound with high CTI and high light diffusivity and a preparation method thereof. Background technique [0002] LED is the fourth generation of light source, known as green light source, because of its advantages of low power consumption, energy saving, long service life, safety, environmental protection and rich colors, it is widely used in flat panel display, lighting and projection lamp technology fields. Become the first choice for future lighting. The diffusing agent in the light-diffusing material needs to be evenly distributed. When the point light source passes through the material, a large number of scattering, refraction, and reflection phenomena will occur on the diffused particles, so that the light can pass through the material evenly without exposing the bead lamp, so as to achieve the goal from point light source to Uniform convers...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L69/00C08L71/08C08L23/06C08L25/06C08K7/18C08K5/13C08K5/49C08K5/36C08K5/103C08K3/32
CPCB29B9/06B29C48/92B29C2948/9258B29C2948/92704C08L69/00C08L2201/02C08L2205/03C08L2205/035C08L71/02C08L23/06C08L25/06C08K13/04C08K7/18C08K2003/323C08L23/0853C08L91/06C08K7/20
Inventor 曹晓宏
Owner 南通市海门江海建设投资有限公司
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