Chain extension method of engineering resin and reclaimed material thereof

A technology of engineering resin and recycled materials, which is applied in the field of polymer materials, can solve the problems of black spots or gel points of materials, the need for master batching, and high cost of use, and achieve the effects of high use efficiency, wide range of uses, and good cost performance

Active Publication Date: 2012-07-25
FINE BLEND POLYMER SHANGHAI CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0026] However, its use cost is high, its use needs to be masterbatched, and its molecular weight is relatively low: the heat resistance in the material is also insufficient, and when the amount is slightly larger, processing may easily lead to problems such as black spots or gel points in the material

Method used

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  • Chain extension method of engineering resin and reclaimed material thereof
  • Chain extension method of engineering resin and reclaimed material thereof
  • Chain extension method of engineering resin and reclaimed material thereof

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Embodiment Construction

[0047] The present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments.

[0048] Chain extension method:

[0049] Weigh 100 parts by weight of engineering resin reclaimed material as a benchmark.

[0050] Add the following components:

[0051] 1 to 10 parts by weight of the terpolymer of the present invention as a chain extender;

[0052] 0.1-0.5 parts by weight of antioxidant 1010;

[0053] 0.1-0.5 parts by weight of white oil or silicone oil;

[0054] Then in the high mixer, use the speed of 2000rpm, control the temperature below 90°C, mix for about 1-5 minutes, use a twin-screw extruder with an aspect ratio greater than 34, and granulate at a temperature of 220-260°C.

[0055] Its physical and mechanical properties are implemented according to the following standards.

[0056] Tensile properties: ASTM D638, bending properties: ASTM D 790, Izod impact properties: ASTM D256, melt index: ASTM D 1238 (260°C×5kg)...

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Abstract

The invention relates to a chain extension method of engineering resin and reclaimed materials thereof. The method comprises the following steps in parts by weight : taking 100 engineering resin or reclaimed materials thereof, 1-10 parts of chain extender, 0.1-0.5 antioxidant and 0.1-0.5 white oil or silicone oil as the raw materials, mixing in a high-speed mixing machine for 1-5 minutes at 25-90DEG C, and extruding the mixture by using a double-screw extruder at 220-260 DEG C, and granulating to obtain the product. Compared with the prior art, the invention has the advantages of simple and effective method, convenient use, low cost and the like.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to an engineering resin and a method for chain extension of recycled materials. Background technique [0002] Polyamide (PA, commonly known as nylon) was first used in the synthetic fiber industry, and then used as engineering plastics due to its excellent physical and mechanical properties, and has been developed rapidly. It is widely used in the automotive industry, electrical industry, building materials, machinery Parts, medical equipment, daily necessities and other fields. [0003] The molecular weight of PA obtained by the general polymerization method is low, and the PA used in engineering plastics has higher requirements. In addition, due to its oil resistance, low temperature impact resistance, and excellent gas barrier properties, the demand for PA containers has greatly increased, and PA containers are used for processing. Blow molding requires higher molecula...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08J11/04C08G69/48C08G64/42C08G63/91B29B9/12B29B9/06B29C47/92C08L77/00C08L69/00C08L67/02B29C48/40B29C48/92
CPCB29C48/92B29C2948/92704B29C48/04B29C48/40B29C2948/92895
Inventor 田冶段春来辛敏琦李荣群
Owner FINE BLEND POLYMER SHANGHAI CO LTD
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