Composite material with matte effect and preparation method thereof

A composite material and matte powder technology, applied in the field of composite material and its preparation, can solve the problems of uneven gloss distribution, performance deterioration, high energy consumption, achieve uniform and fine matte, reduce processing temperature, and simple preparation process. Effect

Pending Publication Date: 2022-05-06
大河宝利材料科技(苏州)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] Aiming at the defects in the above-mentioned prior art, the present invention provides a composite material with a matte effect and a preparation method thereof, so as to solve the

Method used

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  • Composite material with matte effect and preparation method thereof
  • Composite material with matte effect and preparation method thereof
  • Composite material with matte effect and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0029] The preparation method of the composite material with matte effect comprises the following steps:

[0030] Weigh the PC resin, the ABS resin, the matte powder and the antioxidant according to the formula and premix them in a high-speed mixer for 5-10min to obtain the premix;

[0031] The premix is added into a twin-screw extruder for extrusion granulation to obtain the composite material.

[0032] Further, the temperature of the twin-screw extruder is set as: 200-210 ℃ in zone 1, 210-220 ℃ in zone 2, 210-220 ℃ in zone 3, 210-220 ℃ in zone 4, 210-220 ℃ in zone 5, 210-220 ℃ in zone 6, 210-220 ℃ in zone 7, 210-220 ℃ in Zone 8, 210-220 ℃ in zone 9, 210-220 ℃ in zone 10 and 220-230 ℃ in head.

[0033] Further, the screw speed is 300-400r / min, and the screw length diameter ratio of the twin-screw extruder is 40-50.

[0034] Further, during the later sample preparation, the temperature of the injection molding machine is set as: 220-230 ℃ in zone I, 230-240 ℃ in zone II, 230-240...

Example

[0035] Examples 1-9 and comparative examples 1-4:

Example Embodiment

[0036] Example 1:

[0037] In this embodiment, the formula of the composite material (unit:%) is shown in Table 1. The preparation method of the composite material includes the following steps:

[0038] Weigh 67.8% of the PC resin, 30% of the ABS resin, 2% of the matte powder and 0.2% of the antioxidant, and premix in a high-speed mixer for 5 minutes to obtain the premix;

[0039] The composite material is obtained by adding the premix to the twin-screw extruder for extrusion granulation.

[0040] The temperature of the twin-screw extruder is set as: 210 ℃ in the first zone, 220 ℃ in the second zone, 220 ℃ in the third zone, 220 ℃ in the fourth zone, 220 ℃ in the fifth zone, 220 ℃ in the sixth zone, 220 ℃ in the seventh zone, 220 ℃ in the eighth Zone, 220 ℃ in the ninth zone, 220 ℃ in the tenth zone and 230 ℃ in the head. The screw speed is 350r / min, and the screw length diameter ratio of twin-screw extruder is 1:44. During sample preparation, the temperature of the injection mo...

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Abstract

The invention discloses a composite material with a matte effect and a preparation method thereof, and the composite material with the matte effect comprises the following components in percentage by mass: 35.5 to 57.8 percent of PC resin, 30 to 60 percent of ABS resin, 2 to 4 percent of matte powder and 0.2 to 0.5 percent of antioxidant. The matte powder is a silicon dioxide powder material, and the particle size of the matte powder is 1.5 +/-0.1 mu m. The preparation method comprises the following steps: premixing the raw materials in a high-speed mixer for 5-10 minutes, and then extruding and granulating the premix through a double-screw extruder to obtain the composite material. When the composite material with the matte effect is prepared, the temperature of each section of the double-screw extruder is 20-30 DEG C lower than that of a normal process; meanwhile, the temperature is 20 DEG C lower than the normal injection molding temperature during sample injection molding, so that the preparation process of the composite material with the matte effect is simple, and the energy consumption is low.

Description

technical field [0001] The invention relates to the field of PC / ABS resin modification, in particular to a composite material with a matte effect and a preparation method thereof. Background technique [0002] Composite material of polycarbonate (PC) and acrylonitrile-styrene-butadiene copolymer resin (ABS), which combines the formability of ABS material with the mechanical properties of PC material, high impact strength and temperature resistance, UV resistance, etc. characteristic. The composite material is widely used in automotive interior parts, home appliances, communication equipment, and lighting equipment due to the combination of the excellent properties of the two materials. The car interior made of this composite material is favored by users because of its high temperature resistance, long service life and various shapes. In order to avoid accidents caused by interference with the driver's vision, it is suitable for composite parts in cars It needs to have a ce...

Claims

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Application Information

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IPC IPC(8): C08L69/00C08L55/02C08K3/36C08K5/134C08K5/526
CPCC08L69/00C08L55/02C08K2201/011C08K3/36C08K5/1345C08K5/526
Inventor 杨俊罗煜陈欢郑江华
Owner 大河宝利材料科技(苏州)有限公司
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