Nylon 6/polyphenyl ether composition and preparation method thereof

A technology of polyphenylene ether and composition, which is applied in the field of nylon 6/polyphenylene ether composition and its preparation, can solve the problems of easy deliquescence, unclean cleaning, and reduce the corrosion of chlorides to equipment, and achieve a small size of the dispersed phase , Excellent mechanical properties, and the effect of reducing the viscosity difference of the melt

Active Publication Date: 2017-09-01
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in actual processing, it is found that these chlorides are very deliquescent and cannot be cleaned up after processing, which is very corrosive to processing equipment. It is necessary to add a small amount of weakly alkaline substances such as triethanolamine to reduce the corrosiveness of chlorides to equipment.

Method used

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  • Nylon 6/polyphenyl ether composition and preparation method thereof
  • Nylon 6/polyphenyl ether composition and preparation method thereof
  • Nylon 6/polyphenyl ether composition and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] (1) Premixing: 60.3 parts by mass of PA6, 15 parts by mass of PPO, 15 parts by mass of PPO-maleic anhydride grafts, 8 parts by mass of SEBS-maleic anhydride grafts, 1 part by mass of calcium chloride, 0.1 parts by mass of Parts of triethanolamine, 0.2 parts by mass of antioxidant 1076 and 0.4 parts by mass of antioxidant 168 were sequentially added to a high-speed mixer for pre-mixing. The mixing temperature was 45°C, the rotational speed was 450 rpm, and the mixing time was 6 minutes.

[0035] (2) Extrusion granulation: Add the above-mentioned premixed materials from the feeder to a twin-screw extruder (screw diameter 25mm, aspect ratio 40), melt extrusion granulation, and obtain nylon 6 / polyphenylene ether combination. The process conditions are set as follows: the screw speed is 180 rpm; the feeder speed is 30 rpm; the temperature of each section of the extruder is 200-250°C.

[0036] The dried nylon 6 / polyphenylene ether composition was injected into a standard sam...

Embodiment 2

[0038] (1) Premixing: 65.1 parts by mass of PA6, 13.5 parts by mass of PPO, 13.5 parts by mass of PPO-maleic anhydride grafts, 5 parts by mass of SEBS-maleic anhydride grafts, 2 parts by mass of calcium chloride, 0.3 parts by mass of Parts of triethanolamine, 0.3 parts by mass of antioxidant 1076 and 0.3 parts by mass of antioxidant 168 were sequentially added to a high-speed mixer for pre-mixing. The mixing temperature was 50°C, the rotational speed was 500 rpm, and the mixing time was 4 minutes.

[0039](2) Extrusion granulation: Add the above-mentioned premixed materials from the feeder to a twin-screw extruder (screw diameter 25mm, aspect ratio 40), melt extrusion granulation, and obtain nylon 6 / polyphenylene ether combination. The process conditions are set as follows: the screw speed is 200 rpm; the feeder speed is 40 rpm; the temperature of each section of the extruder is 200-250°C.

[0040] The dried nylon 6 / polyphenylene ether composition was injected into a standard...

Embodiment 3

[0042] (1) Premixing: 70.9 parts by mass of PA6, 10 parts by mass of PPO, 10 parts by mass of PPO-maleic anhydride grafts, 3 parts by mass of SEBS-maleic anhydride grafts, 5 parts by mass of calcium chloride, 0.5 parts by mass of Parts of triethanolamine, 0.4 parts by mass of antioxidant 1076 and 0.2 parts by mass of antioxidant 168 were sequentially added to a high-speed mixer for pre-mixing. The mixing temperature was 35°C, the rotational speed was 300 rpm, and the mixing time was 6 minutes.

[0043] (2) Extrusion granulation: Add the above-mentioned premixed materials from the feeder to a twin-screw extruder (screw diameter 25mm, aspect ratio 40), melt extrusion granulation, and obtain nylon 6 / polyphenylene ether combination. The process conditions are set as follows: the screw speed is 220 rpm; the feeder speed is 25 rpm; the temperature of each section of the extruder is 200-250°C.

[0044] The dried nylon 6 / polyphenylene ether composition was injected into a standard sa...

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Abstract

The invention belongs to the technical field of macromolecular composite materials, and discloses a nylon 6 / polyphenyl ether composition and a preparation method thereof. The nylon 6 / polyphenyl ether composition is prepared from the following components in parts by mass: 60.3 to 70.9 of PA6, 10 to 15 of PPO, 10 to 15 of PPO-maleic anhydride graft, 3 to 8 of SEBS-maleic anhydride graft, 1 to 5 of calcium chloride, 0.1 to 0..5 of triethanolamine, 0.2 to 0.4 of an antioxidant 1076 and 0.2 to 0.4 of an antioxidant 168. The preparation method comprises the following steps: adding all the raw materials into a high speed mixing machine for premixing, and then adding the mixture into a two-screw extruder for melt extrusion and granulation, thus obtaining the nylon 6 / polyphenyl ether composition. By the adding of the PPO-maleic anhydride graft, the SEBS-maleic anhydride graft, the calcium chloride and the triethanolamine, the mechanical property of a PA6 / PPO alloy can be obviously improved.

Description

technical field [0001] The invention belongs to the technical field of polymer composite materials, and in particular relates to a nylon 6 / polyphenylene ether composition and a preparation method thereof. Background technique [0002] Nylon 6 (PA6) is a kind of thermoplastic engineering plastics with excellent performance. It has excellent mechanical properties, electrical properties, wear resistance, oil resistance, solvent resistance, self-lubrication, corrosion resistance and processing properties. Materials are widely used in automobiles, electronic appliances, machinery, aerospace and other fields. However, due to the structure of PA6 itself, the mechanical properties of PA6 resin are not very ideal, and its dimensional stability is poor, heat resistance is low, and its strength is significantly reduced in a wet environment, which limits the expansion of its application field. [0003] As one of the five major engineering plastics, polyphenylene ether (PPO) cannot be c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L77/02C08L71/12C08L51/08C08L51/00C08K13/02C08K3/16C08K5/17C08K5/134C08K5/526
CPCC08K2003/162C08L77/02C08L2205/035C08L2205/06C08L2205/08C08L71/12C08L51/08C08L51/006C08K13/02C08K3/16C08K5/17C08K5/1345C08K5/526
Inventor 杨军忠任力
Owner SOUTH CHINA UNIV OF TECH
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