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White PP (polypropylene) alloy with high shading property and preparation method thereof

A high shading, white technology, applied in the field of modified materials, can solve the problems of difficult toning, deep color of polypropylene materials, reducing mechanical strength of materials, etc., achieving good mechanical properties and processing properties, simple preparation process, and good shading effect. Effect

Inactive Publication Date: 2018-03-09
HEFEI GENIUS NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

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

Method used

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  • White PP (polypropylene) alloy with high shading property and preparation method thereof
  • White PP (polypropylene) alloy with high shading property and preparation method thereof
  • White PP (polypropylene) alloy with high shading property and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Take the raw materials by weighing the components and proportioning ratio (parts by weight) in Table 1

[0021] Mix in a high mixer for 5 minutes, mix the above raw materials evenly, and extrude the mixed blend through a twin-screw extruder to granulate. The temperature of each zone of the extruder is 150°C from the feeding section to the head. . The prepared mixture was subjected to a performance test, and the test results are shown in Table 2.

Embodiment 2

[0023] Take the raw materials by weighing the components and proportioning ratio (parts by weight) in Table 1

[0024] Mix in a high mixer for 10 minutes, mix the above raw materials evenly, and extrude the mixed blend through a twin-screw extruder to granulate. The temperature of each zone of the extruder is 170°C from the feeding section to the head. . The prepared mixture was subjected to a performance test, and the test results are shown in Table 2.

Embodiment 3

[0026] Take the raw materials by weighing the components and proportioning ratio (parts by weight) in Table 1

[0027] Mix in a high mixer for 15 minutes, mix the above raw materials evenly, and extrude the mixed blend through a twin-screw extruder to pelletize. The temperature of each zone of the extruder is 150°C from the feeding section to the head. . The prepared mixture was subjected to a performance test, and the test results are shown in Table 2.

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Abstract

The invention discloses a white PP (polypropylene) alloy with high shading property and a preparation method thereof. The white PP alloy with high shading property is prepared by mixing and performingextrusion pelletization on the following components in parts by weight: 55 to 68 parts of polypropylene resin, 22 to 30 parts of shading filler, 10 to 15 parts of white toner, 0.2 to 0.5 part of antioxidant, 0.2 to 0.5 part of lubricating agent and 0.2 to 0.4 part of light stabilizer. The preparation process is simple and convenient to operate; and the prepared PP alloy has relatively good shading effect and the light-transmitting rate is only 0.1 percent when a plate is 0.5 mm. Meanwhile, a product provided by the invention has high mechanical property and processability, and is particularlysuitable for application of LED light shields, instrument light shields, shading decorative products, light barriers and the like.

Description

technical field [0001] The invention relates to the technical field of modified materials, in particular to a high light-shielding white PP alloy and a preparation method thereof. Background technique [0002] Light-emitting diode (referred to as LED) is a solid-state semiconductor device that can directly convert electricity into light. It has the characteristics of small size, low power consumption, high brightness, low heat, durability and environmental protection. These inherent characteristics determine that it is the most ideal light source to replace traditional light sources. It has a wide range of uses and can be used as a display light source for display screens, traffic signals, living lighting, and industrial lighting. The high brightness of the LED light source has higher requirements on the shading, dimensional stability and surface smoothness of the shading plate shade than the ordinary light source. [0003] Polypropylene (referred to as PP) has the advantag...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12C08L23/14C08K13/02C08K3/22C08K5/134C08K5/098C08K5/20C08K3/34B29C47/92B29C48/92
CPCB29C48/92B29C2948/92704C08K3/22C08K3/34C08K5/098C08K5/1345C08K5/20C08K13/02C08K2003/2241C08L23/12C08L23/14C08L2205/02
Inventor 杨桂生廖雄兵朱敏计娉婷
Owner HEFEI GENIUS NEW MATERIALS
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