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Preparation method of flame-retardant antistatic coal mine ventilating pipeline

A flame retardant, antistatic, and ventilation duct technology, which is applied in the field of ventilation duct preparation, can solve the problems of poor flame retardancy and antistatic performance of ventilation ducts, and achieve the effects of inhibiting flammable gas, improving electrical conductivity, and delaying thermal degradation.

Inactive Publication Date: 2018-03-27
常州欣彬纺织品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The main technical problem to be solved by the present invention is to provide a preparation method of a flame-retardant and anti-static coal mine ventilation pipe for the defects of poor flame retardancy and antistatic performance of the ventilation pipe

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0024] In parts by weight, put 20 parts of 200-mesh conductive carbon black powder and 40 parts of absolute ethanol in a three-necked flask with a stirrer, then put the three-necked flask into a water bath, heat up to 60°C, and start stirring After stirring and mixing at a speed of 300r / min for 10 minutes, add 6 parts of silane coupling agent KH-570 into the three-necked flask, heat and stir for 1 hour to obtain the product, filter the product with suction, remove the filtrate, and put it in an oven. Heat up to 100°C and dry for 7 hours to obtain modified conductive carbon black; take poplar wood and put it into a wood grinder for 30 minutes, pass through a 80-mesh standard sieve to obtain sieved poplar wood powder, put the sieved poplar wood powder into an oven to heat up to 60°C, dried for 6 hours to obtain dried poplar wood powder; in parts by weight, mix 90 parts of poplar wood powder, 20 parts of maleic anhydride, 20 parts of polypropylene, 10 parts of rotten wood powder a...

example 2

[0026]In parts by weight, put 25 parts of 200-mesh conductive carbon black powder and 42 parts of absolute ethanol in a three-necked flask with a stirrer, then put the three-necked flask into a water bath, heat up to 65°C, and start stirring After stirring and mixing at a speed of 310r / min for 12 minutes, add 7 parts of silane coupling agent KH-570 to the three-necked flask, keep stirring and react for 1.5 hours to obtain the product, filter the product with suction, remove the filtrate, and put it in an oven , heated to 105°C, dried for 7.5 hours to obtain modified conductive carbon black; put the poplar wood into a wood grinder and crushed it for 35 minutes, passed through a 90-mesh standard sieve to obtain sieved poplar wood powder, and put the sifted poplar wood powder into an oven Heating to 65°C and drying for 6.5 hours to obtain dry poplar wood powder; in parts by weight, mix 95 parts of poplar wood powder, 22 parts of maleic anhydride, 25 parts of polypropylene, 12 part...

example 3

[0028] In parts by weight, put 30 parts of 200-mesh conductive carbon black powder and 45 parts of absolute ethanol in a three-necked flask with a stirrer, then put the three-necked flask into a water bath, heat up to 70°C, and start stirring After stirring and mixing at a speed of 330r / min for 15 minutes, add 8 parts of silane coupling agent KH-570 into the three-necked flask, keep warm and stir for 2 hours to obtain the product, filter the product with suction, remove the filtrate, and put it in an oven. Heat up to 110°C and dry for 8 hours to obtain modified conductive carbon black; take poplar wood and put it into a wood grinder to pulverize for 40 minutes, pass through a 100-mesh standard sieve to obtain sieved poplar wood powder, put the sieved poplar wood powder into an oven to heat up To 70°C, dry for 7 hours to obtain dry poplar wood powder; in parts by weight, mix 100 parts of poplar wood powder, 25 parts of maleic anhydride, 30 parts of polypropylene, 15 parts of rot...

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Abstract

The invention discloses a preparation method of a flame-retardant antistatic coal mine ventilating pipeline, belonging to the technical field of preparation of ventilating pipelines. According to thepreparation method, poplar powder, maleic anhydride and polypropylene are mixed and fermented so as to obtain grafted modified wood powder, polypropylene and various additives are doped into the woodpowder so as to obtain a mixture, a sufficient amount of conductive carbon black is added, conductive particles in a composite material are uniformly distributed, so that the internal conductivity ofthe ventilating pipeline is improved; and ammonium polyphosphate and glycerin are taken as compound flame retardants, ammonium polyphosphate is heated and decomposed to generate phosphoric acid and ammonia gas in a combustion decomposing process, phosphoric acid and glycerin generate esterification reaction to generate carbon through dehydration, added zinc borate absorbs heat to remove crystal water, meanwhile, crystal water absorbs heat to evaporate and dilute combustible components and oxygen in air, zinc borate is heated to be fused to form a glass body covering layer so as to inhibit combustible gas, and generated boron and boron oxides are capable of inhibiting oxidizing reaction of carbon-containing compounds, so that the ventilating pipeline has good flame retardance and wide application prospects.

Description

technical field [0001] The invention discloses a method for preparing a flame-retardant and antistatic coal mine ventilation pipe, which belongs to the technical field of ventilation pipe preparation. Background technique [0002] Ventilation pipes are metal or composite pipes used in ventilation and air-conditioning engineering of industrial and civil buildings. They are a municipal infrastructure for air circulation and reduction of harmful gas concentrations. [0003] Ventilation pipes, plates, profiles and other main finished materials used in the manufacture and installation of air ducts shall comply with the current national standards for design and related products, and shall apply the factory inspection certificate. Ventilation ducts are divided by material: generally include: steel plate ducts (ordinary steel plates), galvanized sheet (white iron) ducts, stainless steel ventilation ducts, glass fiber reinforced plastic ventilation ducts, plastic ventilation ducts, c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12C08L51/00C08K13/06C08K9/06C08K3/04C08K7/24C08K3/32C08K5/053C08K3/38
CPCC08K2003/323C08K2003/387C08L23/12C08L2201/02C08L2201/04C08L2203/18C08L2205/025C08L2205/035C08L51/00C08K13/06C08K9/06C08K3/04C08K7/24C08K3/32C08K5/053C08K3/38
Inventor 赵宝何俊欣陈莉莉
Owner 常州欣彬纺织品有限公司
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