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A kind of preparation method of pc-abs alloy material

A technology of PC-ABS and alloy materials, which is applied in the field of preparation of PC-ABS alloy materials, can solve the problems of influence on the mechanical properties of alloy materials, different polarities, poor melting effect, etc., to improve anti-aging performance and reduce gloss degree of effect

Active Publication Date: 2021-12-28
四川省聚和高分子材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0019] In order to solve the above problems, the prior art can adopt various auxiliary reagents such as antioxidants, anti-hydrolysis agents, anti-photochemical agents, etc., but most of these components have different polarities and are difficult to unify, so that the dissolving effect is relatively poor, and then Unpredictable effects on the mechanical properties of alloy materials

Method used

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Experimental program
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preparation example Construction

[0039] The invention provides a kind of preparation method of PC-ABS alloy material, comprises the following steps:

[0040] (1) Prepare raw materials by weight:

[0041] 65~75 parts of PC resin; 25~35 parts of ABS resin

[0042] 1-2 parts of compatibilizer; 0.1-1 part of lubricant;

[0043] 3 to 5 parts of sulfonated SBS resin; the degree of sulfonation is 0.3 mmol / g to 0.6 mmol / g;

[0044] (2) Dry the PC resin and ABS resin, then add the rest of the raw materials and use a blender to mix evenly, use a screw extruder to heat and extrude, cool and cut into pellets after extrusion to obtain alloy material particles.

[0045] The compatibilizer and lubricant of the present invention can adopt the compatibilizer and lubricant commonly used in PC / ABS in the prior art, and the present invention is verified through many tests, and it is found that the compatibilizer can have an impact on the mechanical properties of the material, However, it does not interact with the sulfonated SB...

Embodiment 1

[0048] The preparation method of PC / ABS alloy material disclosed by the invention

[0049] (1) Prepare raw materials by weight:

[0050] 70 parts of PC resin; 30 parts of ABS resin; 2 parts of compatibilizer ABS-g-MAH; 0.5 parts of lubricant paraffin;

[0051] 5 parts of sulfonated SBS resin; the degree of sulfonation is 0.5 mmol / g.

[0052] (2) Dry PC resin at 100°C for 3 hours, and dry ABS resin at 110°C for 2 hours, then add compatibilizer, lubricant and sulfonated SBS and mix them evenly with a blender, and then use a screw extruder to heat and extrude , after extrusion, cooling and pelletizing can obtain alloy material particles.

[0053] The screw extruder can be divided into 9 heating zones, and the temperature is set at 220°C~230°C, 230°C~240°C, 240°C~250°C, 250°C~260°C, 260°C~270°C, 270°C~280°C ℃, 270℃~280℃, 260℃~270℃, head temperature 240℃~250℃; the speed of the feeding rod is 12r / min; the speed of the main screw is 350r / min.

[0054] The raw material of the pres...

experiment example 3

[0082] In Experimental Example 3, conventional SBS resin was added on the basis of Experimental Example 2, which can significantly reduce the gloss, indicating that the addition of conventional SBS can already make the alloy material have a certain matte effect.

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Abstract

The invention discloses a preparation method of PC‑ABS alloy material, which comprises taking 65-75 parts of PC resin; 25-35 parts of ABS resin and 1-2 parts of compatibilizer; 0.1-1 part of lubricant; 3 parts to 5 parts of SBS resin; sulfonation degree is 0.3 mmol / g~0.6 mmol / g; dry PC resin and ABS resin, then add the rest of the raw materials and use a blender to mix evenly, and use a screw extruder to heat and extrude , after extrusion, cooling and pelletizing can obtain alloy material particles. The present invention modifies the additive SBS by optimizing the components of the PC / ABS alloy material, and adds sulfonic acid groups to the sulfonated SBS, so that the chemical polarity and spatial structure of the SBS change, thereby reducing the matte finish of the alloy material. At the same time, the sulfonated SBS resin can also improve the binding force between the functional groups of PC resin and ABS resin. The double bond of the alloy material is more stable under the action of sulfonated SBS resin, which improves the anti-aging of the alloy resin. performance.

Description

technical field [0001] The invention relates to the technical field of chemical materials, in particular to a preparation method of a PC-ABS alloy material. Background technique [0002] PC / ABS is polycarbonate and acrylonitrile-butadiene-styrene copolymer and mixture, which is a combination of polycarbonate (Polycarbonate) and acrylonitrile-butadiene-styrene copolymer (ABS) Plastic plastic, combining the excellent characteristics of two materials, the formability of ABS material and the mechanical properties of PC, impact strength and temperature resistance, UV resistance and other properties, the color is no transparent particles, and can be widely used in automotive interior parts , Business machines, communication equipment, home appliances and lighting equipment. [0003] Automotive interior materials generally have a matte requirement, which is beneficial to reduce the driver's visual fatigue, thereby improving driving safety. The overall performance of PC / ABS is goo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L69/00C08L55/02C08L53/02
CPCC08L69/00C08L2201/08C08L2205/035C08L2205/025
Inventor 侯宗全邓华玲
Owner 四川省聚和高分子材料有限公司
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