Method for preparing modified polyphenylene oxide master batches

A technology of polyphenylene ether and masterbatch, which is applied in the field of engineering plastics, can solve the problems of high cost and insufficient cleanness of the production environment, and achieve the effects of improving corrosion resistance and flame retardancy, convenient continuous feeding, and good fluidity

Inactive Publication Date: 2015-10-28
BLUESTAR CHENGDU NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this patent can also realize the modification of polyphenylene ether, it needs to be mixed under solvent conditions, the production environment is not clean enough, and the cost is high

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A preparation method of modified polyphenylene ether masterbatch, comprising the following steps:

[0028] A. Mixing

[0029] Add 65 parts of polyphenylene ether, 25 parts of high-impact polystyrene, 2 parts of glass fiber, 0.5 part of filler and 20 parts of low-density polyethylene into a high-speed mixer for mixing. After mixing for 5 minutes, add 0.1 part Auxiliary, continue to mix for 25 minutes;

[0030] B. to extrude

[0031] Transfer the mixed material to a twin-screw extruder for melt extrusion. The head temperature of the twin-screw extruder is 260°C, and the screw speed is 180r / min;

[0032] C. Cooling and granulation

[0033] The extruded material is cooled by water, and then granulated by a granulator after cooling;

[0034] D. Drying and packaging

[0035] Dry the pellets at a temperature of 95°C for 2.5 hours. After drying, cool and pack.

Embodiment 2

[0037] A preparation method of modified polyphenylene ether masterbatch, comprising the following steps:

[0038] A. Mixing

[0039] Add 80 parts of polyphenylene ether, 37 parts of high-impact polystyrene, 12 parts of glass fiber, 5 parts of filler and 12 parts of low-density polyethylene into a high-speed mixer for mixing. After mixing for 10 minutes, add 5 parts of Auxiliary, continue to mix for 25 minutes;

[0040] B. to extrude

[0041] Transfer the mixed material to a twin-screw extruder for melt extrusion. The head temperature of the twin-screw extruder is 275°C, and the screw speed is 160r / min;

[0042] C. Cooling and granulation

[0043] The extruded material is cooled by water, and then granulated by a granulator after cooling;

[0044] D. Drying and packing

[0045] Dry the pellets at a temperature of 105° C. for 2 hours. After drying, cool and pack.

Embodiment 3

[0047] A preparation method of modified polyphenylene ether masterbatch, comprising the following steps:

[0048] A. Mixing

[0049] Add 70 parts of polyphenylene ether, 35 parts of high-impact polystyrene, 8 parts of glass fiber, 3 parts of filler and 18 parts of low-density polyethylene into a high-speed mixer for mixing. After mixing for 8 minutes, add 0.5 parts of auxiliary agent, continue to mix for 22min;

[0050] B. to extrude

[0051] Transfer the mixed material to a twin-screw extruder for melt extrusion. The head temperature of the twin-screw extruder is 268°C, and the screw speed is 170r / min;

[0052] C. Cooling and granulation

[0053] The extruded material is cooled by water, and then granulated by a granulator after cooling;

[0054] D. Drying and packing

[0055] The pellets are dried at a temperature of 100°C for 2 hours, and then cooled and packaged after drying.

[0056] In step A of this embodiment, the auxiliary agent is an antioxidant.

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Abstract

The invention discloses a method for preparing modified polyphenylene oxide master batches and belongs to the field of engineering technology. The method comprises the steps of mixing, extruding, cooling, prilling, drying and packaging, wherein the raw materials of the step of mixing comprises 65-80 parts of polyphenyl ether, 0.5-5 parts of filling agents. 12-20 parts of low density polyethylene and 0.1-5 parts of addition agents. The polyphenylene oxide master batches prepared through the method have the advantages that the dimensional stability is good, the performances of corrosion resistance and solvent resistance are good, the application range of polyphenylene oxide materials can be expanded, the production environment is clean, and no harm is caused to the bodies of operators.

Description

technical field [0001] The invention relates to a preparation method of a modified polyphenylene ether masterbatch, belonging to the technical field of engineering plastics. Background technique [0002] Polyphenylene ether is one of the five major engineering plastics. The polymer has low water absorption, saturated water absorption at room temperature <0.1%, flame-resistant and self-extinguishing, has good mechanical and electrical properties in a wide temperature range, and creep resistance at high temperatures. It has excellent resistance to acid, alkali, salt water and hot water, but its high melting temperature, high melt viscosity, poor thermoplasticity and poor solvent resistance, so its application is greatly limited. [0003] The use of polyphenylene ether mostly depends on modification. For example, the publication number CN103044894A published by the State Intellectual Property Office on April 17, 2013, the invention patent named "a modified polyphenylene ethe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L71/12C08L51/04C08L23/06C08K13/04C08K7/14B29B9/06B29C47/92B29C48/92
Inventor 曹先军王凤德高川赵奕崔晓静刘咏梅
Owner BLUESTAR CHENGDU NEW MATERIALS
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