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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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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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 problems of high energy consumption and performance deterioration in the preparation of a composite material with a matte effect in the prior art Severe, uneven gloss distribution issues

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

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preparation example Construction

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

[0030] The PC resin, the ABS resin, the matte powder, and the antioxidant are weighed according to the formula, and premixed in a high-speed mixer for 5-10 minutes to obtain a premix;

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

[0032] Further, the temperature setting of the twin-screw extruder is: 200-210°C in the first zone, 210-220°C in the second zone, 210-220°C in the third zone, 210-220°C in the fourth zone, 210-220°C in the fifth zone, The sixth zone is 210-220°C, the seventh zone is 210-220°C, the eighth zone is 210-220°C, the ninth zone is 210-220°C, the tenth zone is 210-220°C, and the machine head is 220-230°C.

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

[0034] Further, in the later s...

Embodiment 1

[0037] In the present embodiment, the formula (unit: %) of composite material is as shown in Table 1, and the preparation method of composite material comprises the following steps:

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

[0039] The premixed material is added to a twin-screw extruder to extrude and granulate to obtain the composite material.

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

Embodiment 2

[0048] In the present embodiment, the formula (unit: %) of composite material is as shown in Table 1, and the preparation method of composite material comprises the following steps:

[0049] 57.7% of the PC resin, 40% of the ABS resin, 2% of the matte powder, and 0.3% of the antioxidant were weighed and premixed in a high-speed mixer for 8 minutes to obtain a premix;

[0050] The premixed material is added to a twin-screw extruder to extrude and granulate to obtain the composite material.

[0051] The temperature setting of the twin-screw extruder is: 210°C in the first zone, 220°C in the second zone, 220°C in the third zone, 220°C in the fourth zone, 220°C in the fifth zone, 220°C in the sixth zone, 220°C in the seventh zone, and 220°C in the eighth zone. ℃, 220℃ in the ninth zone, 220℃ in the tenth zone, and 230℃ in the machine head. The screw speed is 350r / min, and the screw length-to-diameter ratio of the twin-screw extruder is 1:44. In the later stage of sample preparat...

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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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