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Preparation method of anti-static biomass packing special for coating

A biomass and anti-static technology, applied in the direction of conductive coatings, epoxy resin coatings, coatings, etc., can solve the problems of weak affinity, difficulty in uniform dispersion and mixing, weak conductivity, etc., and achieve good dispersion and good resistance The effect of electrostatic effect

Inactive Publication Date: 2016-11-16
陈建峰
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem mainly solved by the present invention is: in view of the strong cohesion between the carbon-based antistatic particles at present, the affinity between it and the paint matrix such as organic polymers is weak, it is difficult to disperse and mix evenly in the paint, and the common carbon-based conductive The fillers are graphite and carbon black, both of which use non-renewable petroleum and fossil energy as raw materials, and the defect of weak electrical conductivity of biomass carbon materials provides a preparation method of biomass antistatic fillers for coatings
The method uses walnut shells as raw materials, carbonizes after being soaked in a nickel-containing solution, and then compounded with sweet potato and ginger liquid to modify microorganisms to obtain biomass antistatic fillers. The invention makes walnut shell powder loaded with nickel ions by soaking in a nickel-based solution. And using it as a catalyst for carbonization can improve the conductivity of biochar, and solve the problem of weak conductivity of traditional biomass carbon materials. The walnut shell charcoal is modified by sweet potato and ginger mixture rich in various active functional groups and microorganisms. properties, increasing the number of functional groups on its surface, thereby improving the dispersibility of biochar in the coating matrix, and making up for the strong cohesion between carbon-based antistatic particles, which makes it difficult to disperse and mix uniformly in the coating. Excellent anti-static performance

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0019] Weigh 1 kg of walnut shells and put them into a jet mill for pulverization for 15 minutes, then transfer them to a ball mill, add stainless steel ball milling beads to the ball mill at a ball-to-material ratio of 20:1, continue ball milling for 50 minutes and pass through a 200-mesh standard sieve to obtain walnut shell powder; Immerse the walnut shell powder obtained above in a nickel nitrate solution with a mass concentration of 40% according to a solid-to-liquid ratio of 1:10, put it into an ultrasonic oscillator and oscillate with a power of 300W to oscillate and immerse overnight, and after the immersion, pour the immersion mixture into a horizontal Centrifuge at a speed of 3000r / min for 15 minutes to separate and obtain the lower precipitate; put the above precipitate into an oven and dry it at 105°C for 3 hours, then move the dried precipitate into a carbonization furnace and pass argon gas into the furnace until Replace all the air in the furnace, first heat up t...

example 2

[0022]Weigh 2 kg of walnut shells and put them into a jet mill for crushing for 18 minutes, then transfer them to a ball mill, add stainless steel ball milling beads to the ball mill at a ball-to-material ratio of 20:1, continue ball milling for 60 minutes and pass through a 200-mesh standard sieve to obtain walnut shell powder; Immerse the walnut shell powder obtained above in a nickel nitrate solution with a mass concentration of 40% according to a solid-to-liquid ratio of 1:10, put it into an ultrasonic oscillator and oscillate with a power of 350W to oscillate and immerse overnight, and after the immersion, pour the immersion mixture into a horizontal Centrifuge at a speed of 3500r / min for 18 minutes to separate and obtain the lower precipitate; put the above precipitate into an oven and dry it at 108°C for 4 hours, then move the dried precipitate into a carbonization furnace and pass argon gas into the furnace until Replace all the air in the furnace, first heat up to 350°...

example 3

[0025] Weigh 2 kg of walnut shells and put them into a jet mill for pulverization for 20 minutes, then transfer them to a ball mill, add stainless steel ball milling beads to the ball mill at a ball-to-material ratio of 20:1, continue ball milling for 70 minutes and pass through a 200-mesh standard sieve to obtain walnut shell powder; Immerse the walnut shell powder obtained above in a nickel nitrate solution with a mass concentration of 40% according to a solid-to-liquid ratio of 1:10, put it into an ultrasonic oscillator and oscillate with a power of 400W to oscillate and immerse overnight, and after the immersion, pour the immersion mixture into a horizontal Centrifuge at a speed of 4000r / min for 20 minutes to separate and obtain the lower precipitate; first put the above precipitate into an oven and dry it at 110°C for 5 hours, then move the dried precipitate into a carbonization furnace and pass argon gas into the furnace until Replace all the air in the furnace, first hea...

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Abstract

The invention relates to a preparation method of anti-static biomass packing special for a coating, and belongs to the field of anti-static materials. The method comprises the steps that walnut shells are taken as raw materials to be soaked by a nickel-containing solution and then carbonized, modification is conducted by compounding sweet potato-ginger liquid with microorganisms, and then the anti-static biomass packing is obtained. According to the preparation method, walnut shell powder is loaded with nickel ions by soaking the walnut shell powder with the nickel-containing solution, carbonization is conducted by taking the nickel-containing solution as a catalyst, therefore, the conductivity of biomass charcoal can be improved, and the problem that a traditional biomass charcoal material is weak in conductivity is solved; the walnut shell charcoal is modified by the sweet potato-ginger liquid containing various active functional groups and the microorganisms, therefore, the number of the functional groups on the surface of the walnut shell charcoal is increased, and then the dispersibility of the biomass charcoal in a coating matrix is improved; in addition, the defect that due to the fact that high cohesive force is formed among carbon-system anti-static particles, the carbon-system anti-static particles are difficult to uniformly disperse and mix in the coating is made up, and the excellent anti-static property is achieved.

Description

technical field [0001] The invention relates to a preparation method of a special biomass antistatic filler for paint, which belongs to the field of antistatic material preparation. Background technique [0002] Electrostatic discharge is an extremely common phenomenon in daily life. In a dry environment, sometimes the human body will feel electrified when it touches a metal object, and occasionally electric sparks will be seen. This is the electrostatic discharge phenomenon, also known as the ESD phenomenon. Electrostatic discharge will generate short-term discharge current and strong discharge magnetic field, which can cause malfunction of electronic equipment in operation, and even damage internal components, resulting in loss of function of the equipment. One of the ways to reduce electrostatic hazards is to increase the charge dissipation rate, prevent charge accumulation, and reduce surface resistivity. [0003] Most of the coatings are poor conductors of electricity....

Claims

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Application Information

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IPC IPC(8): C09D5/24C09D163/00
CPCC09D5/24C08K3/04C08K9/00C08K2201/011C08K2201/017C09D7/62C09D163/00
Inventor 陈建峰林茂平
Owner 陈建峰
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