What kind of material is polycarbon? What does carbon based material mean?

Specific concept, activated carbon adsorption method is the use of porous activated carbon, so that one or more substances in the water are adsorbed on the surface of the activated carbon and remove the method, the removal of objects including dissolved organic substances, the synthesis of detergents, microorganisms, viruses and a certain amount of heavy metals, and can decolorize, deodorize, air purification. Activated carbon, sulfonated coal, zeolite, coke, etc. are commonly used adsorbents in water treatment, and the activated carbon lattice forms developed pores of different shapes and sizes after activation, which greatly increases the specific surface area and improves the adsorption capacity. The effective radius of the fine pores of activated carbon is generally 1-10000nm, the radius of small pores is less than 2nm, the radius of transition pores is generally 2-100nm, and the radius of macropores is 100-10000nm.

The pore volume is generally, and the transition pore area is generally; The macroporous volume is average....

Polycarbonate (PC) is a polymer containing a carbonate base in the molecular chain, which can be divided into aliphatic, aromatic, aliphatic-aromatic and other types according to the structure of the ester group. Due to the low mechanical properties of aliphatic and aliphatic-aromatic polycarbonates, their application in engineering plastics is limited.

Polycarbonate is a strong thermoplastic resin named after the CO3 group inside it. It can be synthesized from bisphenol A and carbon oxychloride (CoCl2). At present, the most commonly used method is melt transesterification method (bisphenol A and diphenyl carbonate are synthesized by transesterification and polycondensation reaction).

Polycarbosilanes are a class of polymer compounds.

Its backbone consists of silicon and carbon atoms.

Alternately composed, silicon and carbon atoms are connected with hydrogen or organic groups, and the molecular chains are linear or branched. Polycarbonsilane is the most important compound in the new precursor polymer of high-tech new materials, which is mainly used for the preparation of silicon carbide.

series of high-tech ceramic materials.

Among them, silicon carbide fiber is the most representative.

A major factor in the growth of research interest in polycarbosilanes is their use as silicon carbide precursors.

potential, mainly as a continuous ceramic fiber.

The potential of the source. As a result, many new polycarbosilanes have been synthesized directly or indirectly. However, polycarbosilanes have also become the focus of research in recent years, but this part of the research has nothing to do with the development of ceramic precursors.

This is due to the growing recognition of polycarbosilanes as a new class of polymers with potential applications in a wide range of applications.

Generally refers to polycarbonate, PC, is a thermoplastic, good transparency, mechanical properties are also very good, surface hardness is general, common uses such as discs, plastic spectacle lenses, taxi guardrails, protective windows in public places, vacuum cleaners, coffee machines, juicer barrels, refrigerator shelves, pure water buckets, etc.

Polycarbonate (commonly abbreviated as PC) is a colorless, transparent, amorphous thermoplastic material. Its name** is derived from the CO3 group within it.

Chemical properties. Polycarbonate is resistant to acids and oils.

Polycarbonate is not resistant to ultraviolet light and strong alkalis.

Physical. Polycarbonate is colorless and transparent, heat-resistant, impact-resistant, flame-retardant, and has good mechanical properties in ordinary use temperatures. Compared with polymethyl methacrylate, polycarbonate has good impact resistance, high refractive index, good processing performance, and does not require additives to have UL94 V-0 flame retardant properties.

However, polymethyl methacrylate is lower than polycarbonate** and can be used to produce large devices by bulk polymerization. As the scale of polycarbonate production expands, the difference between polycarbonate and polymethyl methacrylate is shrinking.

Polycarbonate has poor abrasion resistance. Some polycarbonate devices used for abrasive applications require special surface treatment.

Carbon-based materials are deposited in the form of resin, carbon, or vapor phase.

Carbon and graphite are the matrix, and carbon felt or graphite felt is the reinforcing body of the all-carbon composite material. Carbon-based materials are widely used in materials, environment, energy, electrochemistry and other fields, and play an important role in human life and economic development.

There are two preparation methods for carbon-based composites: one is the impregnation method, that is, the reinforcing body is impregnated with molten petroleum or coal pitch, and then carbonized and graphite treatment, its matrix is graphitic carbon, which is a layered band structure, and the performance is anisotropic.

Target. There are also thermosetting resins such as furfuryl alcohol or phenolic impregnated with reinforcements, which are only carbonized, and its matrix is glass carbon, that is, amorphous carbon structure, and the performance is isotropic.

Target. The other is the CVD method, which is to put hydrocarbons.

The pyrolytic carbon of the compound is deposited on the reinforcement for compounding, and the carbon matrix of this method is pyrolytic carbon similar to glass carbon. Carbon Carbon composites are not resistant to oxidation, so an anti-oxidation coating is sometimes required.

Carbon Carbon composite material (C-C composite or carbon-carbon composite material) is a carbon matrix composite material reinforced with carbon fiber and its fabric. It has the advantages of low density (high strength, high specific modulus, high thermal conductivity, low coefficient of expansion, good friction properties, good thermal shock resistance, high dimensional stability, etc., and is one of the few alternative materials used in more than 1650 today, and the maximum theoretical temperature is as high as 2600, so it is considered to be one of the most promising high-temperature materials.

There is no difference between the two.

Carbon material refers to carbon material, and the essence of the two is the same, but the name is different. Carbon materials (i.e., carbon materials) include nano-carbon materials, carbon fibers, carbon materials, etc. Carbon fiber: A high-strength and high-modulus fiber with a carbon content of more than 90%.

High temperature resistance ranks first among all chemical fibers. It is made of acrylic fiber and viscose fiber, which is oxidized and carbonized at high temperature. It is an excellent material for the manufacture of aerospace and other high-tech equipment.

Nanocarbon materials refer to carbon materials with at least one dimension of dispersion phase scale less than 100 nm. The dispersed phase can be composed of both carbon atoms and dissimilar atoms (non-carbon atoms) and even nanopores. Carbon materials are arranged differently according to their atoms in the structure, and carbon has three allotropes, namely diamond, graphite and amorphous carbon, which have different physical properties, chemical properties and uses.

PolycarbonateIt is a common colorless and transparent amorphous thermoplastic material.

The name polycarbonate is due to the CO3 group inside the polycarbonate. This is a new type of thermoplastic engineering plastics that has only appeared in the past 20 years, and there are many varieties, and the current output is bisphenol A-type polycarbonate, which has a structural formula.

For: The molecule was 30,000 70 years in West Germany began industrial production, abbreviated as PC.

Features of polycarbonate1. The transparency is very good, and the light transmittance of the film.

Up to 89%, second only to plexiglass, and can also be colored.

2. The oil resistance is very good, and the sample is soaked in gasoline for three months, and the weight basically does not change.

3. The water absorption is very small, and the relative humidity.

At 50%, the maximum moisture absorption is 23 degrees Celsius.

If you don't soak in water for a week, the water absorption rate is, and if you soak it in boiling water for a week, the water absorption rate is.

The above content reference: Encyclopedia - polycarbonate.

Carbon-carbon composite composite material: It is a carbon matrix composite material reinforced with carbon fiber and its fabric. It has the advantages of low density, high strength, high specific modulus, high thermal conductivity, low coefficient of expansion, good friction properties, good thermal shock resistance and high dimensional stability, and is one of the few alternative materials used in applications above 1650 degrees Celsius, with a maximum theoretical temperature of up to 2600 degrees Celsius, so it is considered one of the most promising high-temperature materials.

Characteristics: Oxidation reactions occur in an aerobic environment at temperatures above 400 degrees Celsius, resulting in a sharp decrease in the properties of the material. Therefore, the application of carbon-carbon composites in high-temperature aerobic environments must have oxidation protection measures.

The oxidation protection of carbon-carbon composite materials is mainly through the following two ways, namely, at a lower temperature, the substrate modification and the passivation of surface active points can be adopted to protect the carbon-carbon composites; As the temperature rises, the coating method must be used to isolate the direct contact between the carbon-carbon composite material and the oxygen to achieve the purpose of oxidation protection. At present, the most used method is the coating method, with the continuous progress of technology, the dependence on the ultra-high temperature performance of carbon-carbon composites is more and more, and the only feasible oxidation protection scheme under ultra-high temperature conditions can only be coating protection.

Carbon-carbon composite materials are all-carbon composite materials made of carbon fiber pure cover and its fabric as reinforcing materials, with carbon as the matrix, through processing and carbonization treatment. The carbon content of carbon-carbon composite materials is higher than 99 after high-temperature heat treatment, so the material has a series of excellent properties such as low density, high temperature resistance, corrosion resistance, good thermal shock performance, acid resistance, alkali and salt resistance, friction and wear resistance.

In addition, the strength of carbon-carbon composites can be maintained up to 2500 at room temperature, which is insensitive to thermal stress and has good anti-ablation performance. Therefore, Liugong carbon-carbon composite materials have excellent mechanical properties, which can not only be used as structural materials to carry heavy loads, but also as functional materials, and are suitable for various high-temperature applications.

<> carbon-plastic alloy is to use the efficient thermal conductivity of carbon fiber.

Material thermal conductivity w mk: carbon fiber 400 700, copper, pure aluminum, aluminum alloy 121 151, brass, cast iron, steel, stainless steel and high anti-corrosion performance of plastic, creatively fused.

The phase diagram of the iron-carbon alloy is actually the phase diagram of Fe-Fe3C, and the basic components of the iron-carbon alloy should also be pure iron and Fe3C. Iron has an allotropic transition, i.e., it has a different structure in the solid state.

Iron and carbon with different cavity structures can form different solid solutions, and the solid solutions on the Fe—Fe3C phase diagram are all interstitial solid solutions. Due to the different pore characteristics in the -fe and -fe lattices, the carbon dissolving capacity of -fe and -fe is also different.

Ferrite is an interstitial solid solution of carbon in -fe, with a symbol"f"(or) denotes that the body-centered cubic lattice; Although the total volume of the gap of BCC is large, the volume of the individual gap is small, so its amount of dissolved carbon is very small, at most only time), and it is almost 0 at room temperature, so the properties of ferrite are similar to those of pure iron, with low hardness and high plasticity, and ferromagnetism.

30%~50%,aku=128~160j σb=180~280mpa,50~80hbs.

The microstructure of ferrite is the same as that of pure iron, after being etched with 4% nitric acid alcohol solution, it presents bright polygonal equiaxed grains under the microscope, and the ferrite is distributed in white blocks in sub-eutectic steel, but when the carbon content is close to the eutectic component, the ferrite is distributed in an intermittent network around the pearlite due to the small amount.

Summary. In fact, it is a carbon fiber composite.

Carbon fiber is mainly made of carbon fiber reinforced plastic, this composite material to apply carbon fiber is a fibrous carbon material, it is a strength greater than steel, density is smaller than aluminum, more corrosion-resistant than stainless steel, and can conduct electricity like copper, with many valuable chemical, thermal and mechanical properties of the new material.

Due to its relatively good performance, there are more and more carbon fiber hair products on the market.

What kind of material is carbon plastic?

In fact, it is a carbon fiber composite. Carbon fiber is mainly made of carbon fiber reinforced plastic, this composite material to apply carbon fiber is a kind of fiber compass carbon material, it is a strength greater than steel, density is smaller than aluminum, more corrosion resistance than stainless steel, and can conduct electricity like copper, with many valuable chemical, thermal and mechanical slip bridge sales of new materials. Due to its relatively good performance, there are more and more carbon fiber hair products on the market.

How much is a ton of this carbon plastic material on the market?

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