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Method for extruding ultra-high molecular weight polyethylene product with flame retardant and antistatic properties

A technology of ultra-high molecular weight and molecular weight, applied in the field of ultra-high molecular weight polyethylene products, can solve problems such as fire or explosion, and achieve the effect of preventing migration

Inactive Publication Date: 2010-07-21
江苏联冠高新技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, because ultra-high molecular weight polyethylene is flammable and electrically insulating, it is easy to cause fire or explosion due to static sparks generated by friction in industries such as coal.

Method used

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  • Method for extruding ultra-high molecular weight polyethylene product with flame retardant and antistatic properties
  • Method for extruding ultra-high molecular weight polyethylene product with flame retardant and antistatic properties
  • Method for extruding ultra-high molecular weight polyethylene product with flame retardant and antistatic properties

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Continuous extrusion of flame-retardant and antistatic UHMWPE pipe with a diameter of 62mm. Take 100 parts of UHMWPE (M3) resin with a molecular weight of 3.8 million; 25 parts of high-density polyethylene resin with a molecular weight of 700,000; and the conductive carbon black / compound flame retardant mixed powder kneaded in an internal mixer at 60°C-80°C for 10 minutes in advance body (including 35 parts of conductive carbon black composite powder; 32 parts of compound flame retardant); 2 parts of polyethylene wax, 2 parts of calcium stearate, 0.2 parts of fluorine additives, and 0.4 parts of B215 antioxidant are added to the single screw In the extruder, the UHMWPE double-resistant pipe with a smooth appearance like a mirror is extruded.

Embodiment 2

[0029] Continuous extrusion of flame retardant and antistatic UHMWPE pipes with a diameter of 227mm. Take 100 parts of UHMWPE (M3) resin with a molecular weight of 3.8 million; 20 parts of a high-density polyethylene resin with a molecular weight of 500,000; and the conductive carbon black / compound flame retardant mixed powder kneaded in an internal mixer at 60°C-80°C for 10 minutes in advance Body (including 30 parts of conductive carbon black composite powder; 30 parts of compound flame retardant); 2 parts of polyethylene wax, 2 parts of calcium stearate, 0.2 parts of fluorine additives, 0.4 parts of B215 antioxidant are added to the single screw In the extruder, the UHMWPE double-resistant pipe with a smooth appearance like a mirror is extruded.

Embodiment 3

[0031] Continuous extrusion of UHMWPE sheets with a width of 1000mm X 7mm. Take 100 parts of UHMWPE (M3) resin with a molecular weight of 3.8 million; 25 parts of a high-density polyethylene resin with a molecular weight of 500,000; and the conductive carbon black / compound flame retardant mixed powder kneaded in an internal mixer at 60°C-80°C for 10 minutes in advance body (including 35 parts of conductive carbon black composite powder; 32 parts of compound flame retardant); 2 parts of polyethylene wax, 2 parts of calcium stearate, 0.2 parts of fluorine additives, and 0.4 parts of B215 antioxidant are added to the single screw In the extruder, the UHMWPE double-resistant sheet with a smooth appearance like a mirror is extruded.

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PUM

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Abstract

The invention discloses a method for extruding an ultra-high molecular weight polyethylene product with flame retardant and antistatic properties, which is characterized by comprising the following steps: adding 100 parts of ultra-high molecular weight polyethylene resin the molecular weight of which is greater than or equal to 3800000, 15-25 parts of high-density polyethylene resin the molecular weight of which is 500000-700000, 2 parts of polyethylene wax, 1-2 parts of calcium stearate, 0.2-0.8 part of fluorine additive, 0.4 part of antioxidant, 30-35 parts of conductive carbon black powder and 30-32 parts of compound fire retardant into a single screw extruder for continuous extruding and forming, wherein the additives are kneaded in an internal mixer at 60-80 DEG C for 30-60 minutes, and then the additives and the polyethylene resin are added into the extruder. The compound fire retardant comprises decabromodiphenyl ether, antimony trioxide and ammonium polyphosphate (APP) in proportion of 10:5:1. The combination property of the product of the invention exceeds the existing coal industry standard (MT 558.1-2005), and the product is especially suitable to be used in the coal industry.

Description

technical field [0001] The invention relates to an ultra-high molecular weight polyethylene product with flame-retardant and antistatic properties, especially a method for extruding pipes and plates. Background technique [0002] Ultra-high molecular weight polyethylene (UHMWPE) pipes and plates have small friction coefficient, low wear, good chemical resistance, impact resistance, high pressure resistance, frost resistance, heat preservation, stress crack resistance, and self-lubricating properties. , anti-fouling and other outstanding advantages, are widely used in coal, automobiles, chemicals, food and paper industries. As corrosion-resistant, wear-resistant, high-impact and low-temperature resistant components, they are widely used in silo linings, chutes, slideway linings, slide rails, rollers, fuel tanks and other fields. However, because ultra-high molecular weight polyethylene is flammable and electrically insulating, it is easy to cause fire or explosion due to sta...

Claims

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Application Information

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IPC IPC(8): C08L23/06C08K13/04C08K7/24C08K3/32C08K5/098C08K3/04C08K5/06C08K3/22B29C47/38B29L23/00B29L7/00B29C48/395
CPCB29C47/0023B29C47/0004B29C47/385B29C48/09B29C48/022B29C48/397
Inventor 黄学祥王德禧严为群周亚俊高坤光钱晓宇
Owner 江苏联冠高新技术有限公司
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