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Halogen-free flame-retardant polycarbonate composite material and its products

A technology of flame retardant polycarbonate and composite materials, applied in the field of materials, can solve problems such as poor mechanical properties, and achieve the effects of good flame retardancy and good mechanical properties

Active Publication Date: 2017-12-29
SUZHOU MITAC PRECISION TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, although the polycarbonate after adding the flame retardant has achieved the effect of flame retardancy, it is not excellent in other mechanical properties, such as fluidity, toughness and rigidity.

Method used

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  • Halogen-free flame-retardant polycarbonate composite material and its products
  • Halogen-free flame-retardant polycarbonate composite material and its products
  • Halogen-free flame-retardant polycarbonate composite material and its products

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023]

[0024] The above components are sequentially added to the high-speed mixer and pre-mixed at high speed for 3-5 minutes; then extruded and granulated with a twin-screw extruder, wherein the ground glass fiber is forced into the extruder from the side feeder through a metering machine The process parameters of the twin-screw extruder are: the temperature of the first zone is 230-250°C, the temperature of the second zone is 300-320°C, the temperature of the third zone is 300°C-320°C, the temperature of the fourth zone is 300-320°C, and the temperature of the fifth zone is 290-300 ℃, the temperature of the sixth zone is 290-300℃, the temperature of the seventh zone is 290-300℃, the temperature of the eighth zone is 290-300℃, the temperature of the ninth zone is 290-300℃, the temperature of the tenth zone is 290-300℃, and the temperature of the die head is 290-300℃. The speed of the main machine is 400 rpm, the speed of the side feeder is 200 rpm, and the melt extrusion ...

Embodiment 2

[0026]

[0027] The above components are sequentially added to the high-speed mixer and pre-mixed at high speed for 3-5 minutes; then extruded and granulated with a twin-screw extruder, wherein the ground glass fiber is forced into the extruder from the side feeder through a metering machine The process parameters of the twin-screw extruder are: the temperature of the first zone is 230-250°C, the temperature of the second zone is 300-320°C, the temperature of the third zone is 300°C-320°C, the temperature of the fourth zone is 300-320°C, and the temperature of the fifth zone is 290-300 ℃, the temperature of the sixth zone is 290-300℃, the temperature of the seventh zone is 290-300℃, the temperature of the eighth zone is 290-300℃, the temperature of the ninth zone is 290-300℃, the temperature of the tenth zone is 290-300℃, and the temperature of the die head is 290-300℃. The speed of the main machine is 400 rpm, the speed of the side feeder is 200 rpm, and the melt extrusion ...

Embodiment 3

[0029]

[0030] The above components are sequentially added to the high-speed mixer and pre-mixed at high speed for 3-5 minutes; then extruded and granulated with a twin-screw extruder, wherein the ground glass fiber is forced into the extruder from the side feeder through a metering machine The process parameters of the screw extruder are: the temperature of the first zone is 230-250°C, the temperature of the second zone is 300-320°C, the temperature of the third zone is 300°C-320°C, the temperature of the fourth zone is 300-320°C, and the temperature of the fifth zone is 290-300°C , the temperature of the sixth zone is 290-300°C, the temperature of the seventh zone is 290-300°C, the temperature of the eighth zone is 290-300°C, the temperature of the ninth zone is 290-300°C, the temperature of the tenth zone is 290-300°C, and the temperature of the die head is 290-300°C. The speed of the main machine is 400 rpm, the speed of the side feeder is 200 rpm, and the melt extrusio...

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Abstract

A halogen-free flame-retardant polycarbonate composite material, which comprises: 60-65 parts of polycarbonate resin; 25-35 parts of ground glass fiber; 2-7 parts of toughening agent; 0.005 parts of flame retardant ‑0.012 parts; synergistic flame retardant 0.05‑0.15 parts; lubricant 0.2‑0.5 parts. In the halogen-free flame-retardant polycarbonate composite material of the present invention, by adding a certain proportion of ground glass fiber, flame retardant and synergistic flame retardant to the polycarbonate resin, the product after molding the composite material is Not only has good flame retardancy, but also has good mechanical properties.

Description

【Technical field】 [0001] The invention belongs to the technical field of materials, and in particular relates to a halogen-free flame-retardant polycarbonate composite material and a product thereof. 【Background technique】 [0002] Polycarbonate resin (PC) is a colorless and transparent amorphous thermoplastic material. Because it is easy to process, it is suitable for various molding methods such as injection, extrusion, and blow molding, and has good mechanical and optical properties. Widely used in many fields such as packaging, daily necessities, electronic appliances, toys, instruments, transportation and machine manufacturing. [0003] The disadvantage of polycarbonate resin is that the molded products are prone to stress concentration and cause cracking, the surface hardness is low, and they are not flame retardant. Because polycarbonate resin will release a large amount of smoke and toxic gas when it is burned, and the diffusion speed of these harmful gases is much ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L69/00C08L33/08C08L27/18C08L23/06C08K7/14C08K5/42
Inventor 朱付成
Owner SUZHOU MITAC PRECISION TECH