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Flame retardant antistatic high intension and tough composite tube made from polyvinyl chloride and preparation method

A flame-retardant and antistatic polyvinyl chloride technology, which is applied to tubular objects, other household appliances, household appliances, etc., can solve the problems of mechanical properties that cannot meet the requirements

Inactive Publication Date: 2005-01-12
孙建宁 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention is a series of patent applications with the patent application number 02125730.2 and the name of the invention: flame-retardant and antistatic polyvinyl chloride composite pipe and its preparation method. Although the processing technology of the PVC pipe in the previous patent application is simple, the pipe has high impact resistance and high resistance. Flammability, high antistatic performance, and high mechanical properties; but in some special occasions, the corresponding mechanical properties still cannot meet the requirements

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0084] Embodiment 1 stainless steel fiber reinforced flame-retardant antistatic PVC composite pipe containing carbon black

[0085] Skin formula: 100 parts of PVCS1000; 4 parts of tribasic lead sulfate; 3 parts of dibasic lead phosphite; 1 part of calcium stearate; 1.5 parts of lead stearate; 16 parts of chlorinated polyethylene CPE; toughening ACR2.5 1.0 parts of chlorinated paraffin; 15 parts of shell powder; 35 parts of carbon black; 3 parts of antimony trioxide; 5 parts of DOP; 1 part of white oil; 1 part of stearic acid.

[0086] Core layer formula: 100 parts of PVCS1000; 4 parts of tribasic lead sulfate; 3 parts of dibasic lead phosphite; 1 part of calcium stearate; 1.5 parts of lead stearate; chlorinated polyethylene CPE20; 5 parts of toughening ACR; 1.0 parts of chlorinated paraffin; 25 parts of shell powder; 0.5 parts of carbon black; 3 parts of antimony trioxide, 5 parts of molybdenum oxide; 5 parts of DOP; 1 part of white oil; 1.6 parts of stearic acid; Treated wit...

Embodiment 2

[0089] Example 2 Glass fiber reinforced flame retardant and antistatic PVC composite pipe containing carbon black

[0090] Skin formula: 100 parts of PVC S1000; 4 parts of tetrabasic lead sulfate, 3 parts of dibasic lead phthalate; 1 part of calcium stearate; 1.5 parts of lead stearate; 16 parts of chlorinated polyethylene CPE; 2.5 parts of ACR; 1.0 parts of chlorinated paraffin; 10 parts of shell powder; 20 parts of carbon black; 3 parts of antimony trioxide; 5 parts of DOP; 2 parts of white oil; 1 part of stearic acid.

[0091] Core layer formula: 100 parts of PVC S1000; 4 parts of tetrabasic lead sulfate, 3 parts of dibasic lead phthalate; 1 part of calcium stearate; 1.5 parts of lead stearate; chlorinated polyethylene CPE20; 10 parts of MBS; 1.0 parts of chlorinated paraffin; 25 parts of shell powder; 1 part of carbon black; 3 parts of antimony trioxide, 5 parts of molybdenum oxide; 5 parts of DOP; 1 part of white oil; 1.6 parts of stearic acid; Coupling agents such as α-...

Embodiment 3

[0093] Example 3 Carbon fiber reinforced flame retardant antistatic PVC composite pipe containing carbon black

[0094] The cortex raw material is the raw material in Example 2 except carbon black. Stir at high speed for about 30 minutes until the temperature of the system rises to 120°C, then gradually cool down to room temperature, then add carbon black, continue to stir for 30 minutes, and then seal save. The core material is the same as in Example 2. Processing conditions and dimensions are the same as in Example 2. The fibers used are carbon fibers. The tube is black with a density of 1.6g / mm 3 . The weight ratio of carbon fiber to core layer is 1:30. Tensile yield strength 100Mpa; elongation at break 70%; Vicat softening temperature 100°C; flat test without rupture; longitudinal retraction rate 3%; The impact strength is 100KJ / m 2 ; Both upper and lower surface resistance values ​​are 10 4 order of magnitude; volume resistance is 10 4 Order of magnitude; the oxy...

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Abstract

A flame-retarding antistatic composite PVC pipe with high strength and toughness is composed of internal layer, reinforcing fibre or fabric layer and external antistatic layer. It can be made up by coextruding out method or layer-by-layer coating method.

Description

technical field [0001] The invention relates to a flame-retardant and antistatic polyvinyl chloride multilayer composite pipe, in particular to a two-layer or three-layer composite pipe, wherein at least the core layer or the interlayer between the core layer and the outer skin layer contains reinforcing fibers or braided fabrics thereof And the outer layer has antistatic properties, and the preparation method of the pipe. Background technique [0002] Polyvinyl chloride is a general-purpose polymer material with the longest history, high output and low price. It is widely used in industrial and agricultural production, transportation and people's daily life. PVC pipes have important applications in the discharge and transportation of water, oil, fine powder and air. However, in special occasions, such as coal mines, oil fields, chemical plants, and workshops containing fine powder, there are strict requirements on the antistatic and flame retardan...

Claims

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Application Information

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IPC IPC(8): B29D23/00B32B1/08
Inventor 孙建宁山丹
Owner 孙建宁
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