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Modified PA11 material, pipe and preparation method thereof

A modification and pipe technology, applied in the field of pipes, pipe preparation, and modified PA11 materials, can solve the problems of general 65# coolant resistance, poor high and low temperature blasting resistance, and poor blasting resistance of pipes, and achieve excellent Chemical resistance, excellent coolant corrosion resistance, low temperature and high temperature resistance to the effect of increased burst pressure

Inactive Publication Date: 2019-01-18
ORINKO NEW MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the low crystallinity of pure PA11, its thermal decomposition temperature is low, and the thermal deformation temperature is also low, resulting in poor thermal stability of PA11 materials, poor high and low temperature blast resistance, and pure PA11 materials The high and low temperature blast resistance of the prepared pipe is poor, and the resistance to 65# coolant is average

Method used

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  • Modified PA11 material, pipe and preparation method thereof
  • Modified PA11 material, pipe and preparation method thereof
  • Modified PA11 material, pipe and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] The pipe in this embodiment is made of modified PA11 material, and the modified PA11 material is composed of the following components by weight:

[0030]

[0031] The specific preparation steps of the pipe in the present embodiment are as follows:

[0032] Step 1: Mix PA11 resin, nano-montmorillonite, antioxidant 1098 and N, N-hexylene bishard amide evenly according to the proportion, then add it into a twin-screw extruder, extrude after melting, and cool. Air-dried and pelletized to obtain PA11 modified material; among them, the working temperature of each zone of the twin-screw extruder is 200 °C in the first area, 220 °C in the second area, 230 °C in the third area to the fifth area, and 220 °C in the sixth area to the ninth area. 230°C, the screw speed is 380rpm.

[0033] Step 2: Put the PA11 modified material into the pipe extruder, adjust the extrusion temperature, feed the material, form the die, cool through water, mechanically pull, and cut to obtain pipes ...

Embodiment 2

[0035] The pipe in this embodiment is made of modified PA11 material, and the modified PA11 material is composed of the following components by weight:

[0036]

[0037]

[0038] The specific preparation steps of the pipe in the present embodiment are as follows:

[0039] Step 1: Mix PA11 resin, nano-calcium carbonate, antioxidant 1010, antioxidant 168, pentaerythritol stearate and glyceryl monostearate evenly according to the proportioning ratio, and then add them to a twin-screw extruder, melt Extruded, cooled, air-dried, and pelletized to obtain PA11 modified material; the working temperature of each zone of the twin-screw extruder is 210°C in the first zone, 225°C in the second zone, 240°C from the third zone to the fifth zone, and 240°C from the sixth zone to the ninth zone 225°C, head temperature 240°C, screw speed 400rpm.

[0040] Step 2: Put the PA11 modified material into the pipe extruder, adjust the extrusion temperature, feed the material, form the die, cool...

Embodiment 3

[0042] The pipe in this embodiment is made of modified PA11 material, and the modified PA11 material is composed of the following components by weight:

[0043]

[0044] The specific preparation steps of the pipe in the present embodiment are as follows:

[0045] Step 1: Mix PA11 resin, nano-calcium carbonate, antioxidant 1010, antioxidant 168, and N-N-hexylene bishard amide evenly according to the proportion, then add them to a twin-screw extruder, melt and extrude, and Cool, air-dry, and pelletize to obtain PA11 modified materials; the working temperature of each zone of the twin-screw extruder is 220 °C in the first area, 230 °C in the second area, 250 °C in the third area to the fifth area, and 230 °C in the sixth area to the ninth area. The head temperature was 250°C and the screw speed was 420 rpm.

[0046] Step 2: Put the PA11 modified material into the pipe extruder, adjust the extrusion temperature, feed the material, form the die, cool through water, mechanically...

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Abstract

The invention discloses a modified PA11 material. The modified PA11 material comprises a PA11 resin, a filling agent, an antioxidant and a lubricating agent, wherein the PA11 resin is filled with nanometer minerals; the mechanical performance and the heat resistance of the PA11 material are outstanding while outstanding chemical resistance remains based on the small size effect of the nanometer minerals and the boundary adhering, in addition, the PA11 materials is resistant to blasting under high and low temperature, so that the PA11 material is applicable to high and low temperature environments. The invention further discloses a pipe and a preparation method thereof. The pipe is prepared from the modified PA11 material. The prepared pipe is outstanding in 65# cooling liquid resistance and is applicable to the high and low temperature environments.

Description

technical field [0001] The invention belongs to the field of polymer materials, and in particular relates to a modified PA11 material, a pipe, and further a method for preparing the pipe. Background technique [0002] 65# coolant is mainly made of ethylene glycol, distilled water and a small amount of additives and buffer solution. It has good low temperature resistance and is often used in the cooling system of electronic and mechanical equipment. The traditional coolant pipe is most commonly made of metal aluminum. The 65# coolant medium circulates in the metal aluminum pipeline. The metal aluminum soaked in the 65# coolant has been eroded by the coolant for a long time, reducing the use of the pipeline. The life expectancy requires frequent replacement of pipelines, which greatly increases the input of manpower and financial resources. Moreover, the metal material has a large specific gravity, which will significantly increase the transportation load of the radar, result...

Claims

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Application Information

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IPC IPC(8): C08L77/02C08K13/02C08K3/34C08K3/36C08K3/26C08K5/526C08K5/20
CPCC08K3/26C08K3/346C08K3/36C08K5/20C08K5/526C08K13/02C08K2003/265C08K2201/011C08L2201/08C08L2203/18C08L77/02
Inventor 方浩俞建李荣群陈奇海瞿启云霍绍新方良超
Owner ORINKO NEW MATERIAL CO LTD
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