CN1786082A - Manufacturing method of carbon product - Google Patents

Abstract

The present invention relates to a production method of carbon product. It uses carbon powder as main raw material, uses starch and plant fibre as auxiliary raw material, and mixes them with additive. It is mainly characterized by that it utilizes the high-temperature, high-pressure and depressurization produced by puffing machine high-speed, strong friction and strong transmission to make the carbon mixture undergo the processes of melting, modification and polymerization and be formed into gelatineous plasticity carbon polymer, then the carbon polymer can be moulded into various carbon products with different forms.

Description

A kind of making method of carbon product

The present invention relates to a kind of making method of carbon product.

Carbon product is restricted by material character both at home and abroad at present, making method is few, type shape dullness, use range is limited, making method is mainly gluing on base materials such as plastics film, paper, cloth, silk with powdered carbon, be infected with, spraying and Plastic Resin are stained with knot, or charcoal parcel and powerful punching press, former state fired, as patent: 95118434.2 " the mixed plastic resin moulded product is used as the stopping composition of mat and coating "; " 98115886.6 a kind of bamboo charcoal purpose made technology and products thereof and application ".Have all that ventilation property is poor, the sticking amount of poor, the powdered carbon of absorption releasability less, easily is infected with and release product, Plastic Resin is stained with knot, does not degrade, not environmental protection, the charcoal pore is closed, and the charcoal effect can not be given full play to, present carbon product generally is disposable consumption, can't reclaim.

Purpose of the present invention provides a kind of environmental protection, plastic charcoal polymkeric substance, and is moulded the carbon product of various type shapes, uses the recyclable making method of producing again in back, enlarges the kind and the use field of carbon product, saves the charcoal resource.

The technology that the present invention takes is: powdered carbon, starch and vegetable fibre and the additive pulverized are mixed, utilize bulking machine high speed, strong friction, the strong high temperature of carrying generation, high pressure and decompression make charcoal mixt fusion, modification, polymerization, form plastic charcoal polymkeric substance, and be molded to the carbon product of the different shape of foaming and non-foaming.

Carbon product outward appearance and charcoal that the present invention makes are as good as, and the various performances of maintenance charcoal, need not film, paper, base materials such as cloth, stop chemical gluing system, its biggest advantage is: with charcoal is that main material forms plastic charcoal polymkeric substance, and be moulded the carbon product of different shape, but direct production charcoal cloth not only, carbon paper, carbon slab, existing carbon product such as mattress, also can produce at present can not modification carbon product, not only can produce daily necessities, artwork, also can produce various shockproof, the weather-proof dressing thing, various anti-rotten Perserving materials, food product pack etc. because this making method has the mixed polymerization function, can be added metal powder, materials such as mineral powder, carbon product is enlarged in the use range of industrial circle, because the mutual ratio that can select to use and regulate subsidiary material and additive, the performance index that can regulate various products are to adapt to the product service requirements, can guarantee the absorption and the release of charcoal, help giving full play to of carbon product performance.But this system method automated job improves output, reduces recruitment, uses the back recovery can make carbon product again.Example below in conjunction with making carbon product is described in further detail production of the present invention and technological process:

One, raw material is prepared:

1, charcoal: as bamboo charcoal, charcoal, coke, gac etc.

2, starch: as starch kind materials such as W-Gum, flour, rice meal, potato starches

3, vegetable fibre: straw, corn stalk, straw, reed etc. contain root, stem, leaf, the fruit fiber of vegetable fibre, with above material separated pulverizing.

4, additive: glycerine, polyvinyl alcohol, citric acid tri butyl ester, Zinic stearas etc.

Two, proportioning can adopt the general regulation range of increase and decrease raw material, additives ratio according to variant production performance and purposes needs:

Powdered carbon 10-80% vegetable fibre 5-30%

Starch 5-30% additive 10-60%

Concrete for example the adjusting:

1, the charcoal functional requirement is arranged, but moisture absorption, moistureproof less demanding product, the powdered carbon consumption generally is controlled at below 30%, and fiber, starch, additive then account for about 25% respectively.

2, to the demanding product of toughness of products, polyvinyl alcohol and propolis and softening agent class additive should increase, and generally need about 20-50% the then corresponding minimizing of fiber.

3, carbon product is used for the compression moulding shape, and material moisture content should be big, and glycerine consumption and water content should increase to more than 30%.

4, product requirement intensity then should increase fibre content.

5, need anaerobic to fire the carbon product of Industrial products and pressure forming, then can add a certain amount of metal powder and mineral powder, about about 10-20%, starch, the corresponding minimizing of fibre content.

6, with the charcoal amount below 10%, generally can be used as the active additive of making wrapping material, enhance product performance and regulate color and luster, then vegetable fibre and starch are main, account for about 60%, all the other be plasticising, lubricated, additive such as stablize.

7, as the carbon product of need foaming, then should strengthen more than the starch thing ratio to 30% injecting gas physical blowing in pressure reduction foaming or the bulking machine.

8, embodiment: the carbon product of the polymkeric substance compression moulding after expanded:

W-Gum 10% powdered carbon 60% glycerine 30%

9, expandedly go out carbon paper, plate:

Fiber 10% Semen Maydis powder 10% polyvinyl alcohol 19.5%

Bamboo charcoal 40% glycerine 20% citric acid tri butyl ester 0.5%

Three, with above proportioning material, pour Banbury mixer into, banburying mixes or mixes

Four, will mix the back granulating mixture and enter or directly enter the Puffing machine high speed, strong friction, the strong conveying, decompression is shaped after producing high temperature, high pressure and forming gel charcoal polymkeric substance, or mould molding.

Five, finished product is made:

With above-mentioned sheet material

1, axial compression is wound into carbon paper or carbon slab or hot repressing moulding, side cut.

2, also expanded one-tenth charcoal mixt as a form of gel directly can be injected mould and make the carbon product or the mould inner pressure of different shape and make type, make the carbon product of different shape.

Claims (3)

1. A kind of making method of carbon product

   1, it is main adopting powdered carbon, starch and vegetable fibre etc. are auxilliary and additive material mixes, it is characterized in that with bulking machine high speed, strong friction, strong high temperature, high pressure and decompression of carrying generation, make carbon mixture fusion, modification, polymerization form gluey plastic charcoal polymkeric substance, and the carbon goods of different shape such as molding ejecting plate, paper, piece.
2. 2, bulking machine sieve cover inwall has sieve groove or straight trough.
3. 3, product performance need also can add mineral powder and metal powder.