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A kind of high light-shielding PC polymer and its preparation method and application

A polymer, high shading technology, applied in the field of polymer materials, can solve the problems of insufficient shading performance of polycarbonate materials, reduced mechanical strength of polycarbonate materials, dark color of polycarbonate materials, etc., to maintain product color and luster, good quality The effect of shading effect, high impact resistance effect

Active Publication Date: 2015-09-30
安徽凯顿页宽科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the carbon black filling is too high, the color of the polycarbonate material will be too dark and it is difficult to adjust the color, which will affect the expansion of the product appearance; if the carbon black filling is too low, the polycarbonate material will have insufficient shading performance
At the same time, the addition of carbon black is also easy to reduce the mechanical strength of polycarbonate materials, making it easy to break and damage

Method used

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  • A kind of high light-shielding PC polymer and its preparation method and application
  • A kind of high light-shielding PC polymer and its preparation method and application
  • A kind of high light-shielding PC polymer and its preparation method and application

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Effect test

Embodiment 1

[0033] A kind of high light-shielding PC polymer, its raw material formula is made up of each component of following parts by weight:

[0034]

[0035]

[0036] The toughening agent is PARALOID EXL-2603 produced by American Dow Chemical; the melt index modifier is anhydrous sodium dihydrogen phosphate; and the opacifying agent is titanium dioxide.

[0037]The preparation method of the above-mentioned high light-shielding PC polymer specifically includes the following steps: according to the above-mentioned ratio, an antioxidant, an ultraviolet absorber UV234, a toughening agent, a PP graft, a melt index regulator, a sunscreen, and a PC Stir repeatedly in the mixer and mix evenly, then send it into the twin-screw extruder, melt and knead at a temperature of 277 ° C, the obtained melt is extruded by the twin-screw extruder, cooled in the water tank, and then introduced into the pelletizer for pelletizing operation, the resulting pellets are the high light-shielding PC poly...

Embodiment 2

[0047] A kind of high light-shielding PC polymer, its raw material formula is made up of each component of following parts by weight:

[0048]

[0049] The toughening agent is PARALOID EXL-2603 produced by American Dow Chemical; the melt index modifier is anhydrous sodium dihydrogen phosphate; and the opacifying agent is titanium dioxide.

[0050] The preparation method of the above-mentioned high light-shielding PC polymer specifically includes the following steps: according to the above-mentioned ratio, an antioxidant, an ultraviolet absorber UV234, a toughening agent, a PP graft, a melt index regulator, a sunscreen, and a PC Stir repeatedly in the mixer and mix evenly, then send it into the twin-screw extruder, melt and knead at a temperature of 260 ° C, the obtained melt is extruded by the twin-screw extruder, cooled in the water tank, and then introduced into the pelletizer for pelletizing operation, the resulting pellets are the high light-shielding PC polymer.

[00...

Embodiment 3

[0060] A kind of high light-shielding PC polymer, its raw material formula is made up of each component of following parts by weight:

[0061]

[0062] The toughening agent is PARALOID EXL-2603 produced by American Dow Chemical; the melt index modifier is anhydrous sodium dihydrogen phosphate; and the opacifying agent is titanium dioxide.

[0063] The preparation method of the above-mentioned high light-shielding PC polymer specifically includes the following steps: according to the above-mentioned ratio, an antioxidant, an ultraviolet absorber UV234, a toughening agent, a PP graft, a melt index regulator, a sunscreen, and a PC Stir repeatedly in the mixer and mix evenly, then send it to the twin-screw extruder, melt and knead at a temperature of 290 ° C, the obtained melt is extruded by the twin-screw extruder, cooled in a water tank, and then introduced into a pelletizer for pelletizing operation, the resulting pellets are the high light-shielding PC polymer.

[0064] Th...

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Abstract

The invention discloses high-performance and high-sunscreen PC polymer. The formula of raw materials comprises an antioxidant, an ultraviolet light absorber, a toughening agent, sunscreen, PP (propene polymer) grafting, a melt index conditioning agent and PC. The high-performance and high-sunscreen PC polymer has a sunscreen effect which is superior to that of other products in the industry, and the average light transmissivity is 0-0.2; simultaneously, the PC polymer is shallower in color and can be easily colored by other colors; and besides, the product has high shock resistance, processing performance and stable quality, and is particularly applicable to manufacture of an LED lamp light shield, an instrument light shield, a light shield decorative accessory and a light barrier.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to PC polymers, in particular to a high light-shielding PC polymer and its preparation method and application. Background technique [0002] LED (Light Emitting Diode), or light-emitting diode, is a solid-state semiconductor device that can directly convert electricity into light. It is small in size, low in power consumption, high in brightness, low in heat, durable and environmentally friendly. These inherent characteristics determine that it is the most ideal light source to replace traditional light sources and has a wide range of uses. It can be used as a display light source for display screens, traffic signals, living lighting, and industrial lighting. The wide application of LED lamps also puts forward higher requirements for the materials of their accessories. For example, the high brightness of the LED light source has higher requirements on the shading, dimen...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L69/00C08K13/02C08K3/22C08K3/32B29B9/06
Inventor 林湖彬杜崇铭
Owner 安徽凯顿页宽科技有限公司