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Ozone cracking

Index Ozone cracking

Cracks can be formed in many different elastomers by ozone attack, and the characteristic form of attack of vulnerable rubbers is known as ozone cracking. [1]

60 relations: Acrylonitrile, Aldehyde, Antiozonant, Applied spectroscopy, Brittleness, Butyl rubber, Carboxylic acid, Compressor, Copolymer, Corona discharge, Corrosion, Degree of polymerization, Diaphragm seal, Double bond, Elastomer, Electric discharge, Electric spark, Electrostatic discharge, Energy-dispersive X-ray spectroscopy, Environmental scanning electron microscope, EPDM rubber, Forensic chemistry, Forensic engineering, Forensic materials engineering, Forensic polymer engineering, Fuel line, Gasket, Hypalon, Ketone, Molecular mass, Natural rubber, Neoprene, Nitrile rubber, O-ring, Ozone, Ozonide, Ozonolysis, Parts-per notation, Pneumatics, Polybutadiene, Polymer degradation, Polyurethane, Repeat unit, Rubber Chemistry and Technology, Seal (mechanical), Semiconductor, Silicone rubber, Smog, Static electricity, Stress concentration, ..., Stress corrosion cracking, Styrene-butadiene, Sulfur, Sunlight, Tire, Ultimate tensile strength, Viton, Volatile organic compound, Vulcanization, 1,3-Butadiene. Expand index (10 more) »

Acrylonitrile

Acrylonitrile is an organic compound with the formula CH2CHCN.

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Aldehyde

An aldehyde or alkanal is an organic compound containing a functional group with the structure −CHO, consisting of a carbonyl center (a carbon double-bonded to oxygen) with the carbon atom also bonded to hydrogen and to an R group, which is any generic alkyl or side chain.

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Antiozonant

An antiozonant, also known as anti-ozonant, is an organic compound that prevents or retards the degradation of material caused by ozone (ozone cracking).

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Applied spectroscopy

Applied spectroscopy is the application of various spectroscopic methods for detection and identification of different elements/compounds in solving problems in the fields of forensics, medicine, oil industry, atmospheric chemistry, pharmacology, etc.

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Brittleness

# A material is brittle if, when subjected to stress, it breaks without significant plastic deformation.

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Butyl rubber

Butyl rubber, sometimes just called "butyl", is a synthetic rubber, a copolymer of isobutylene with isoprene.

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Carboxylic acid

A carboxylic acid is an organic compound that contains a carboxyl group (C(.

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Compressor

A compressor is a mechanical device that increases the pressure of a gas by reducing its volume.

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Copolymer

When two or more different monomers unite together to polymerize, the product is called a copolymer and the process is called copolymerization.

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Corona discharge

A corona discharge is an electrical discharge brought on by the ionization of a fluid such as air surrounding a conductor that is electrically charged.

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Corrosion

Corrosion is a natural process, which converts a refined metal to a more chemically-stable form, such as its oxide, hydroxide, or sulfide.

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Degree of polymerization

The degree of polymerization, or DP, is the number of monomeric units in a macromolecule or polymer or oligomer molecule.

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Diaphragm seal

A diaphragm seal is a flexible membrane that seals and isolates an enclosure.

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Double bond

A double bond in chemistry is a chemical bond between two chemical elements involving four bonding electrons instead of the usual two.

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Elastomer

An elastomer is a polymer with viscoelasticity (i. e., both viscosity and elasticity) and very weak intermolecular forces, and generally low Young's modulus and high failure strain compared with other materials.

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Electric discharge

An electric discharge is the release and transmission of electricity in an applied electric field through a medium such as a gas.

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Electric spark

An electric spark is an abrupt electrical discharge that occurs when a sufficiently high electric field creates an ionized, electrically conductive channel through a normally-insulating medium, often air or other gases or gas mixtures.

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Electrostatic discharge

Electrostatic discharge (ESD) is the sudden flow of electricity between two electrically charged objects caused by contact, an electrical short, or dielectric breakdown.

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Energy-dispersive X-ray spectroscopy

Energy-dispersive X-ray spectroscopy (EDS, EDX, EDXS or XEDS), sometimes called energy dispersive X-ray analysis (EDXA) or energy dispersive X-ray microanalysis (EDXMA), is an analytical technique used for the elemental analysis or chemical characterization of a sample.

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Environmental scanning electron microscope

The environmental scanning electron microscope or ESEM is a scanning electron microscope (SEM) that allows for the option of collecting electron micrographs of specimens that are "wet," uncoated, or both by allowing for a gaseous environment in the specimen chamber.

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EPDM rubber

EPDM rubber (ethylene propylene diene monomer rubber), a type of synthetic rubber, is an elastomer characterized by a wide range of applications.

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Forensic chemistry

Forensic chemistry is the application of chemistry and its subfield, forensic toxicology, in a legal setting.

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Forensic engineering

Forensic engineering has been defined as "the investigation of failures - ranging from serviceability to catastrophic - which may lead to legal activity, including both civil and criminal". It therefore includes the investigation of materials, products, structures or components that fail or do not operate or function as intended, causing personal injury, damage to property or economic loss.

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Forensic materials engineering

Forensic materials engineering, a branch of forensic engineering, focuses on the material evidence from crime or accident scenes, seeking defects in those materials which might explain why an accident occurred, or the source of a specific material to identify a criminal.

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Forensic polymer engineering

Forensic polymer engineering is the study of failure in polymeric products.

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Fuel line

A fuel line is a hose used to bring fuel from one point in a vehicle to another or from a storage tank to a vehicle.

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Gasket

gasket A gasket is a mechanical seal which fills the space between two or more mating surfaces, generally to prevent leakage from or into the joined objects while under compression.

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Hypalon

In polymer science, Hypalon is a trademark for chlorosulfonated polyethylene (CSPE) synthetic rubber (CSM) noted for its resistance to chemicals, temperature extremes, and ultraviolet light.

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Ketone

In chemistry, a ketone (alkanone) is an organic compound with the structure RC(.

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Molecular mass

Relative Molecular mass or molecular weight is the mass of a molecule.

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Natural rubber

Natural rubber, also called India rubber or caoutchouc, as initially produced, consists of polymers of the organic compound isoprene, with minor impurities of other organic compounds, plus water.

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Neoprene

Neoprene (also polychloroprene or pc-rubber) is a family of synthetic rubbers that are produced by polymerization of chloroprene.

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Nitrile rubber

Nitrile rubber, also known as NBR, Buna-N, and acrylonitrile butadiene rubber, is a synthetic rubber copolymer of acrylonitrile (ACN) and butadiene.

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O-ring

An O-ring, also known as a packing, or a toric joint, is a mechanical gasket in the shape of a torus; it is a loop of elastomer with a round cross-section, designed to be seated in a groove and compressed during assembly between two or more parts, creating a seal at the interface.

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Ozone

Ozone, or trioxygen, is an inorganic molecule with the chemical formula.

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Ozonide

Ozonide is the unstable, reactive polyatomic anion analog of ozone or any of several classes of organic organic peroxide compounds similar formed by the reaction of ozone with an unsaturated compound.

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Ozonolysis

Ozonolysis is an organic reaction where the unsaturated bonds of alkenes, alkynes, or azo compounds are cleaved with ozone.

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Parts-per notation

In science and engineering, the parts-per notation is a set of pseudo-units to describe small values of miscellaneous dimensionless quantities, e.g. mole fraction or mass fraction.

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Pneumatics

Pneumatics (From Greek: πνεύμα) is a branch of engineering that makes use of gas or pressurized air.

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Polybutadiene

Polybutadiene is a synthetic rubber.

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Polymer degradation

Polymer degradation is a change in the properties—tensile strength, color, shape, etc.—of a polymer or polymer-based product under the influence of one or more environmental factors such as heat, light or chemicals such as acids, alkalis and some salts.

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Polyurethane

Polyurethane (PUR and PU) is a polymer composed of organic units joined by carbamate (urethane) links.

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Repeat unit

A repeat unit or repeating unit is a part of a polymer whose repetition would produce the complete polymer chain (except for the end-groups) by linking the repeat units together successively along the chain, like the beads of a necklace.

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Rubber Chemistry and Technology

Rubber Chemistry and Technology is a quarterly peer-reviewed scientific journal covering research, technical developments, and chemical engineering relating to rubber and its allied substances.

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Seal (mechanical)

A mechanical seal is a device that helps join systems or mechanisms together by preventing leakage (e.g. in a plumbing system), containing pressure, or excluding contamination.

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Semiconductor

A semiconductor material has an electrical conductivity value falling between that of a conductor – such as copper, gold etc.

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Silicone rubber

Silicone rubber is an elastomer (rubber-like material) composed of silicone—itself a polymer—containing silicon together with carbon, hydrogen, and oxygen.

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Smog

Smog is a type of air pollutant.

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Static electricity

Static electricity is an imbalance of electric charges within or on the surface of a material.

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Stress concentration

A stress concentration (often called stress raisers or stress risers) is a location in an object where stress is concentrated.

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Stress corrosion cracking

Stress corrosion cracking (SCC) is the growth of crack formation in a corrosive environment.

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Styrene-butadiene

Styrene-butadiene or styrene-butadiene rubber (SBR) describe families of synthetic rubbers derived from styrene and butadiene (the version developed by Goodyear is called Neolite).

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Sulfur

Sulfur or sulphur is a chemical element with symbol S and atomic number 16.

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Sunlight

Sunlight is a portion of the electromagnetic radiation given off by the Sun, in particular infrared, visible, and ultraviolet light.

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Tire

A tire (American English) or tyre (British English; see spelling differences) is a ring-shaped component that surrounds a wheel's rim to transfer a vehicle's load from the axle through the wheel to the ground and to provide traction on the surface traveled over.

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Ultimate tensile strength

Ultimate tensile strength (UTS), often shortened to tensile strength (TS), ultimate strength, or Ftu within equations, is the capacity of a material or structure to withstand loads tending to elongate, as opposed to compressive strength, which withstands loads tending to reduce size.

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Viton

Viton is a brand of FKM, a synthetic rubber and fluoropolymer elastomer commonly used in O-rings, chemical-resistant gloves, and other molded or extruded goods.

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Volatile organic compound

Volatile organic compounds (VOCs) are organic chemicals that have a high vapor pressure at ordinary room temperature.

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Vulcanization

Vulcanization or vulcanisation is a chemical process for converting natural rubber or related polymers into more durable materials by heating them with sulfur or other equivalent curatives or accelerators.

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1,3-Butadiene

1,3-Butadiene is the organic compound with the formula (CH2.

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References

[1] https://en.wikipedia.org/wiki/Ozone_cracking

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