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High-temperature-resistant corrugated pipe

A bellows, high temperature resistant technology, applied in the field of bellows materials, can solve problems such as unstable high temperature performance, and achieve the effect of improving comprehensive performance, excellent comprehensive performance, and stable high temperature performance

Inactive Publication Date: 2014-11-05
安徽省宁国新鼎汽车零部件有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the prior art, the material of the corrugated pipe mainly uses polyethylene, but there is a defect of unstable high temperature performance, which needs to be improved

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] A high-temperature-resistant corrugated pipe proposed in the embodiment of the present invention is made of the following raw materials in parts by weight:

[0020] Polyethylene resin: 90 parts; Melamine hydrobromide: 12 parts; Phosphinate: 4 parts; Tetrakis[3,-(3',5'-di-tert-butyl-4'-hydroxyphenyl)propionic acid ] Pentaerythritol ester: 0.6 parts; Salicylamidophthalimide: 0.25 parts; Dibutyltin maleate laurate: 1.5 parts; 3,4-Dimethyl-3,4-diphenylhexane : 3 parts; borate: 1.5 parts; pentaerythritol stearate: 0.8 parts;

[0021] According to the above ratio, prepare the high temperature resistant corrugated pipe according to the following steps:

[0022] S1: Weighing each raw material by parts by weight;

[0023] S2: After mixing the various raw materials, add polyethylene resin to extrude and granulate through an extruder, and the extrusion temperature is 200°C;

[0024] S3: Add the pellets obtained in S2 into a single-screw extruder, extrude, and form a pipe to obt...

Embodiment 2

[0026] A high-temperature-resistant corrugated pipe proposed in the embodiment of the present invention is made of the following raw materials in parts by weight:

[0027] Polyethylene resin: 100 parts; Melamine hydrobromide: 10 parts; Phosphinate: 5 parts; Tetrakis[3,-(3',5'-di-tert-butyl-4'-hydroxyphenyl)propionic acid ] Pentaerythritol ester: 0.5 part; Salicylamidophthalimide: 0.3 part; Dibutyltin maleate laurate: 1 part; 3,4-Dimethyl-3,4-diphenylhexane : 4 parts; borate: 1 part; pentaerythritol stearate: 1 part;

[0028] According to the above ratio, prepare the high temperature resistant corrugated pipe according to the following steps::

[0029] S1: Weighing each raw material by parts by weight;

[0030] S2: After mixing the raw materials, add polyethylene resin to extrude and granulate through an extruder, and the extrusion temperature is 190°C;

[0031] S3: Put the pellets obtained in S2 into a single-screw extruder, extrude, and form a pipe to obtain a corrugated p...

Embodiment 3

[0033] A high-temperature-resistant corrugated pipe proposed in the embodiment of the present invention is made of the following raw materials in parts by weight:

[0034] Polyethylene resin: 80 parts; Melamine hydrobromide: 14 parts; Phosphinate: 3 parts; Tetra[3,-(3',5'-di-tert-butyl-4'-hydroxyphenyl)propionic acid ] Pentaerythritol ester: 0.7 parts; Salicylamidophthalimide: 0.2 parts; Dibutyltin maleate laurate: 2 parts; 3,4-dimethyl-3,4-diphenylhexane: 2 parts; borate: 2 parts; pentaerythritol stearate: 0.5 parts;

[0035] According to the above ratio, prepare the high temperature resistant corrugated pipe according to the following steps::

[0036] S1: Weighing each raw material by parts by weight;

[0037] S2: After mixing the various raw materials, add polyethylene resin to extrude and granulate through an extruder, and the extrusion temperature is 210°C;

[0038] S3: Put the pellets obtained in S2 into a single-screw extruder, extrude, and form a pipe to obtain a co...

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PUM

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Abstract

The invention discloses a high-temperature-resistant corrugated pipe which is prepared from the following raw materials in parts by weight: 80 to 100 parts of polyethylene resin, 10 to 14 parts of melamine hydrobromide, 3 to 5 parts of phosphinate, 0.5 to 0.7 part of 4{3,-(3',5'-Di-t-butyl-4'-hydroxyphenyl) propionic acid} pentaerythritol ester, 0.2 to 0.3 part of salicylamide phthalimide, 1 to 2 parts of dibutyltin dilaurate maleate, 2 to 4 parts of 3,4-dimethyl-3,4-diphenyl hexane, 1 to 2 parts of borate and 0.5 to 1 part of pentaerythritol stearate. A preparation method of the high-temperature-resistant corrugated pipe comprises the following steps: mixing the raw materials, adding polyethylene resin and carrying out extruding granulation via an extruder at an extruding temperature of 190 DEG C to 210 DEG C; and adding obtained granules into a single screw extruder, extruding and molding a pipe material at the extruding temperature of 180 DEG C to 190 DEG C and under the extruded pipe pulling speed within 3 to 5m / min so as to obtain the corrugated pipe.

Description

technical field [0001] The invention belongs to the technical field of corrugated pipe materials, in particular to a high temperature resistant corrugated pipe. Background technique [0002] The bellows is a common elastic part, which uses the elasticity of the material to achieve the required function, changes the shape and size of the element under the external load, and returns to the original state when the load is removed, so as to realize the measurement , connection, conversion, compensation, isolation, sealing, shock absorption and other functions. At present, bellows are widely used in automobiles, and bellows for automobiles require materials with good flame retardancy, heat resistance, insulation and toughness. In the prior art, polyethylene is mainly used as the material of the corrugated pipe, but there is a defect of unstable high-temperature performance, which needs to be improved. Contents of the invention [0003] The purpose of the present invention is ...

Claims

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Application Information

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IPC IPC(8): C08L23/06C08K13/02C08K5/3492C08K5/5313C08K5/134C08K3/38
CPCC08K13/02C08K3/32C08K3/38C08K5/103C08K5/1345C08K5/34928C08L2201/08C08L2203/18
Inventor 陈清海陈青山
Owner 安徽省宁国新鼎汽车零部件有限公司
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