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PA (Polyamide) 66/ASA (Acrylonitile) alloy material and preparation method thereof

An alloy material, PA66 technology, applied in the field of PA66/ASA alloy material and its preparation, can solve the problems of incompatibility between PA66 resin and ASA resin, ASA instability, etc., achieve strong dimensional stability, improve yield rate, and compatibility good sex effect

Inactive Publication Date: 2014-02-26
SHENZHEN KEJU NEW MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] (1) PA66 resin is incompatible with ASA resin;
[0007] (2) ASA is unstable at high temperature and prone to degradation

Method used

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  • PA (Polyamide) 66/ASA (Acrylonitile) alloy material and preparation method thereof
  • PA (Polyamide) 66/ASA (Acrylonitile) alloy material and preparation method thereof
  • PA (Polyamide) 66/ASA (Acrylonitile) alloy material and preparation method thereof

Examples

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preparation example Construction

[0032] Correspondingly, the embodiment of the present invention also provides the preparation method of the above-mentioned PA66 / ASA alloy material, and its technological process is as follows figure 1 shown. The method includes the following steps:

[0033] S01. Weigh the components of the PA66 / ASA alloy material: weigh each component according to the formula of the above-mentioned PA66 / ASA alloy material;

[0034] S02. Perform mixing treatment on each component: perform mixing treatment on each component weighed in step S01 to obtain a mixed material;

[0035] S03. Melt-extrude the mixed material: melt-extrude the mixed material and granulate to obtain PA66 / ASA alloy material.

[0036] In the above step S02, the time for the mixing treatment is preferably 3-7 minutes, wherein the mixing treatment can be carried out in a medium-speed mixer, of course, it can also be carried out in other mixers, as long as the components are uniformly mixed .

[0037] In the above step S03...

Embodiment 1～8

[0042] The specific components by weight percentage of each PA66 / ASA alloy material in Examples 1-8 are shown in Table 1 below.

[0043] The preparation method of each PA66 / ASA alloy material in the above-mentioned embodiments 1-8 is the same, including the following steps:

[0044] S1. Weigh all the components of each PA66 / ASA alloy material in the above-mentioned embodiments 1 to 8 according to the specific proportions in Table 1;

[0045]S2. Mixing the above-mentioned dried components in a medium-speed mixer to obtain a mixed material;

[0046] S3. Extrude the mixed material in a twin-screw extruder with a melting temperature of 200-260° C., and granulate. Among them, the temperature of each section is: 200°C in the first zone, 240°C in the second zone, 250°C in the third zone, 255°C in the fourth zone, and 260°C in the fifth zone. The residence time of the mixed material in the screw is 90 seconds.

[0047] Table 1

[0048]

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Abstract

The invention discloses a PA (Polyamide) 66 / ASA (Acrylonitile) alloy material and a preparation method thereof. The PA 66 / ASA alloy material comprises the following components in percent by weight: 30%-70% of PA66, 28%-52% of ASA, 0.3%-5% of compatilizer, 1%-8% of cross-linking agent, 0.1%-1% of antioxidant, and 0.1%-5% of lubricant. According to the invention, by doping the component ASA with low water absorption into the PA66 to lower humidity absorption of the PA66, the material is not easy to deform and expand, and dimension stability of the material is strengthened. Meanwhile, the cross-linking agent and the compatilizer are added into the PA66 / ASA alloy material, so that not only can ASA be effectively prevented from decomposing under a high-temperature condition, but also compatibility of the PA66 and the ASA polymers can be remarkably increased, thereby forming a stable structure and improving compatible performance of the PA 66 / ASA alloy material.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to a PA66 / ASA alloy material and a preparation method thereof. Background technique [0002] Nylon (PA) is a polymer material with the largest output, the most varieties and the widest application fields among the five major engineering plastics. Polyhexamethylene adipamide (PA66) has the advantages of excellent mechanical properties, wear resistance, self-lubrication, corrosion resistance, light weight, environmental protection and non-toxicity, etc. It is widely used in chemical industry, automobile, construction, machinery, scientific research and other industries. However, because PA66 has H and O branch chains in addition to the main chain, it is easy to form hydrogen bonds with water, so it has strong water absorption, resulting in poor geometric stability of the material in subsequent production, which will seriously affect the economic value of PA66. . [0003] ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L77/06C08L51/00
CPCC08L77/06C08L51/003C08L2205/03C08L2205/08
Inventor 徐东罗彧斌徐永
Owner SHENZHEN KEJU NEW MATERIAL
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