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Polyphenyl ether reclaimed material and preparation process thereof

A preparation process and polyphenylene ether technology are applied in the field of polyphenylene ether recycled material and its preparation process, and can solve the problems of reduced impact strength, tensile strength and elongation at break mechanical properties, reduced service life, and wide molecular weight distribution. , to achieve the effect of increased toughness, reduced pollution and good compatibility

Inactive Publication Date: 2020-05-12
日彩复合塑料(深圳)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The biggest advantage of polyphenylene ether recycled materials compared with new polyphenylene ether materials is that they are cheap and the production cost is lower than that of new materials. Recycled materials begin to degrade, molecular weight decreases, molecular weight distribution is wide, and will contain some incompatible small molecule impurities, resulting in plastic products made of polyphenylene ether recycled materials with brittle particles, impact strength, tensile strength and Mechanical properties such as elongation at break decrease, thereby reducing its service life

Method used

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  • Polyphenyl ether reclaimed material and preparation process thereof
  • Polyphenyl ether reclaimed material and preparation process thereof
  • Polyphenyl ether reclaimed material and preparation process thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] Table 1 is each component and its quality of a kind of polyphenylene ether recycled material of embodiment 1

[0040]

[0041] A preparation process of polyphenylene ether regenerated material, specifically comprising the steps of:

[0042] Step 1, mixing materials: waste and old polyphenylene ether is removed and cleaned, then pulverized and mixed with other substances in the formula of Example 1 in a mixer for 5 minutes to obtain a mixed material;

[0043] Step 2. Extrusion: Transport the uniformly mixed mixture in step 1 to the extruder for uniform mixing, and then extrude. The temperature of the extruder is set to 245°C in the first zone, 250°C in the second zone, and 260°C in the third zone. The fourth zone is 265°C, the fifth zone is 270°C, the sixth zone is 275°C, the seventh zone is 275°C, the eighth zone is 280°C, and the head temperature is 285°C;

[0044] Step 3. The cooled and extruded product is cooled by a water tank, the temperature of the front end o...

Embodiment 2

[0048] Table 2 is each component and its quality of a kind of polyphenylene ether recycled material of embodiment 2

[0049]

[0050]

[0051] A preparation process of polyphenylene ether regenerated material, specifically comprising the steps of:

[0052] Step 1, mixing materials: waste and old polyphenylene ether was removed, cleaned, and then pulverized and mixed with other substances in the formula of Example 2 in a mixer for 15 minutes to obtain a mixed material;

[0053] Step 2. Extrusion: Transport the mixed material uniformly mixed in step 1 to the extruder for uniform mixing, and then extrude. The fourth zone is 255°C, the fifth zone is 255°C, the sixth zone is 255°C, the seventh zone is 260°C, the eighth zone is 260°C, and the head temperature is 265°C;

[0054] Step 3. The cooled and extruded product is cooled by a water tank, the temperature at the front end of the water tank is 40°C, and the back end is 30°C, and then the water on the surface of the extrude...

Embodiment 3

[0058] Table 3 is each component and its quality of a kind of polyphenylene ether regenerated material of embodiment 3

[0059]

[0060] A preparation process of polyphenylene ether regenerated material, specifically comprising the steps of:

[0061] Step 1. Mixing: waste polyphenylene ether is removed and cleaned, then pulverized and mixed with other substances in the formula of Example 3 in a mixer for 10 minutes to obtain a mixed material;

[0062] Step 2. Extrusion: Transport the uniformly mixed material in step 1 to the extruder for even mixing, and then extrude. The fourth zone is 275°C, the fifth zone is 275°C, the sixth zone is 275°C, the seventh zone is 280°C, the eighth zone is 280°C, and the temperature of the machine head is 285°C;

[0063] Step 3. The cooled and extruded product is cooled in a water tank, the temperature at the front end of the water tank is 35°C, and the back end is 25°C, and then the moisture on the surface of the extruded product is removed...

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Abstract

The invention relates to a polyphenyl ether reclaimed material and a preparation process thereof, and relates to the technical field of reclaimed materials. The polyphenyl ether reclaimed material comprises the following components in percentages by mass: 97.1-98.3% of waste polyphenyl ether, 0.8-1.2% of an ethylene-acrylic acid copolymer, 0.4-0.6% of nanometer silicon dioxide, 0.2-0.5% of an antioxidant, 0.1-0.3% of a toughening agent, 0.02-0.05% of a heat stabilizer, 0.03-0.06% of a lubricating agent, 0.05-0.1% of a flame retardant, 0.01-0.03% of paraffin and 0.03-0.05% of calcium stearate.The polyphenyl ether reclaimed material prepared by using the method provided by the invention is excellent in mechanical properties, and the service life of a product prepared from the polyphenyl ether reclaimed material can be prolonged. The preparation process disclosed by the invention has the following advantages: the prepared polyphenyl ether reclaimed material is stable in performance; andthe preparation process is simple and convenient to operate.

Description

technical field [0001] The invention relates to the technical field of recycled materials, in particular to a polyphenylene ether recycled material and a preparation process thereof. Background technique [0002] As one of the five major engineering plastics, polyphenylene ether resin has good flame retardancy, high temperature resistance, electrical insulation, dimensional stability and other excellent physical and mechanical properties. The long-term use range of polyphenylene ether is -127~120℃ , and has excellent dimensional stability and outstanding electrical insulation under long-term load, so it is widely used in the fields of electronic and electrical industry, automobile industry, industrial machinery and shell medical equipment. Due to the large consumption of polyphenylene ether, waste polyphenylene ether will pollute the environment through traditional landfilling, incineration and other disposal methods, so polyphenylene ether recycled materials have emerged as...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L71/12C08L23/08C08K13/02C08K3/36C08K5/098B29B9/06B29B9/12B29C48/92
CPCC08L71/12B29B9/06B29B9/12B29C48/92C08L2207/20C08L2205/035C08K2201/011C08L23/0869C08K13/02C08K3/36C08K5/098
Inventor 李嘉荣杨茗棋俞潮兴
Owner 日彩复合塑料(深圳)有限公司
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