Polychloroprene (CR)
Description: Raw monomeric chloroprene is a colourless fluid. It is insoluble in water but soluble
Within our encyclopedia, you will find information about materials, especially polymers. Polymers, known from daily use or application specific polymers with special properties are introduced and, if available, publicated with producing companies and their tradenames.
Additionally, our encyclopedia contains explanations for terms, methods, concepts and physical quantities that we are daily faced with during our work with permeation and polymers.
A
Acidic Acrylic-acid-ionomers of ethyleneAcrylate-rubber (ACM)Acrylic-Butadiene-Styrene-copolymers (ABS)Acrylic glassAcrylic-nitrile-Butadiene-Rubber (Buna-N) (NBR)Acrylic-nitrile-Methyl-Acrylate-copolymers (AMA)Acrylic-nitrile-Styrene-Acrylic-ester-polymer-alloy (ASA) Activation energy Arrhenius equation ASTM
B
Barrier Barrier Coating Barrier Packaging BiotechnologyBisphenol ABromine-butyl-Rubber (BIIR) Butadiene-Rubber (BR)
C
CALIBRATING FLUID II , MIL-PRF-7024F TYPE II
Carboxylated-Nitrile-Butadiene-Rubber (XNBR)Catalysis CatalystCellulose Acetate (CA)ChemicalChemistryChlorine-Sulfonated-Polyethylene (CSM or CSPE)Chloro-isobutene-isoprene rubber (Chlorobutyl Rubber, CIIR) Chloroprene-Rubber (CR)Combinatorial chemistry Composite Composite HoseCyclic Olefine Copolymers (COC)
D
DiffusionDiffusion coefficient Diffusion rate DIN Drying of gases
E
E-85 FuelEpichlorohydrin-Rubber (CO and ECO; CO = homopolymer; ECO = copolymer)Epoxy Resins (EP)Ethylene-Acrylate Copolymer (EAR)Ethylene-Acrylate-rubber (AEM)Ethylene-Acrylic-Acid-copolymer (EAA)Ethylene-Chlorotrifluoroethylene-Fluorocopolymer (ECTFE)Ethylene-Propylene-(Diene-)Rubber (EPM and EPDM; EPM = copolymer; EPDM = terpolymer) Ethylene–Tetrafluoroethylene-Fluorocopolymer (ETFE) Ethylene-Tetrafluoroethylene-Hexafluoropropylene-Fluoroterpolymer (EFEP)Ethylene-Vinyl-Acetate-Copolymers (EVA) Ethylene-Vinyl-Alcohol-Copolymer (EVOH)
F
Facilitated DiffusionFAM A FAM BFeedFFKM (Perfluorinated rubber) FKM (Fluoroelastomers) FluorelastomersFluoropolymers Fluororubber (FPM) Fluoro-Silicone-Rubbers (MFQ or FVMQ)Foamable polystyrene (EPS) FuelFuel C Fuel Cell TechnologyFuel Tank TechnologyFunctionalised Polymers
G
Gas seperation Glass transition temperature (Tg) Granule
H
High Density Polyethylene (HDPE) High-Density-Polyethylene, HDPE (hard PE)Hydrogenated Polyacrylic-Nitrile Butadiene (HNBR)- EPM (copolymer); EPDM (terpolymer)Hygroscopic
I
Ion ISO ISO 4593 ISO/DIS 15105-1Isobutene-Isoprene-Rubber (IIR) Isoprene-Rubber (polyisoprene IR)
J
Jet Fuel RF
L
LaminateLiquid-Crystal-Polymers (LCP)Low Density Polyethylene (LDPE)
M
M 25Melamine-Formaldehyde (MF)MembraneMIL-C-7024E, Typ III Multilayer film
N
Nafion (copolymer made from PTFE and perflourinate Monomer)Natural Rubber (NR)
P
Parylene Perflourated-dimethyl-dioxole/Tetraflourinated-ethylene-copolymer (PDD/TFE)Permeability Permeat Permeation cell Permeation coefficient Permeation measurement cell Permeation ratePermeation rate measurement Permeation tubePhenolic plastics, phenoplastic moulding compounds (PF)Polyacetal or Polyoxymethylene (POM) Poly-acrylic-acid Poly-acrylic-acid-amidePoly-Acrylic-Nitrile (PAN) Polyamide (PA) Polyamide-Imide (PAI) Polyarylate (PAR)Poly-Benzimidazole (PBI) Polybutene (Polybutylene, PB) Polybutylene-Terephthalate (PBT) Polycarbonates (PC) Polychlorinated Terphenylenes (PCT)Polychloroprene (CR) Polychlorotrifluoroethylene (PCTFE) Polycyclohexylenedimethylene-Ethylene-Terephthalat Polyester (general)Polyesterurethane (AU) Polyether-Block-Amide (PEBA) Poly-Ether-Ether-Ketone (PEEK) Polyetherimide (PEI) Polyethersulfone (PESU) Polyetherurethane (EU) Polyethylene (PE) Polyethyleneglycol Polyethylenenaphthalate (PEN) Polyethylenesuccinate (PES) Polyethyleneterephthalate (PET)Polyimide (PI)Polyisobutylene (Butyl rubber) Polyketone (PK)PolymerPolymer alloyPolymer-Blend Polymer characterisation Poly-Methyl-Methacrylate (PMMA)Polynorbornene (PNB)Polyorganophosphazene (PPZ) Poly-Phenylene-oxide (PPO) Poly-Phenylene-sulfide (PPS) Polypropylene (PP) Polystyrene (PS)Polysulfide rubber (SR) Polysulfone (PSU) Polytetrafluoroethylene (PTFE)Polyurethane-Foam (PUR) Poly-Vinylacetate Poly-Vinylalcohol (PVA) Poly-Vinylchloride (PVC) Polyvinylfluoride (PVF) Poly-Vinylidene-Chloride (PVDC) Polyvinylidenefluoride (PVDF)Pouch Method
R
Resin Retentat RFID
S
SemipermeableSilicone (SI) <a title="Silicone rubbers can be used for a
Description: Raw monomeric chloroprene is a colourless fluid. It is insoluble in water but soluble
Description: Time needed by a chemical for permeating through a material. An important characteristic, e.g.
Description: Chlorine-sulfonated polyethylene containing 1.5% sulfur and 27% chlorine. Its properties are comparable to those
Description: A transponder is a transmitting unit with a defined frequency range. It is used
Description: TFB is a thermoplastic fluoroterpolymer, which consists of tetrafluoroethylene (TFE), hexafluoropropylene (HFP) and vinylidenefluoride
Description: Testing fuel for determining permeation and resistance properties in general. Composition: 79 – 86
Description: Produced by adding a carboxylic acid group to a nitrile-rubber, this material contains more
Description: FPM is an elastomer based on fluoro-rubber. FPM is characterised by his resistance to
Description: Permeation tubes are small, inert tubes containing a chemical compund in its pure form.
Description: Diffusion is the mechanism causing microscopic particles from fluids or gases to spread out
Description: Produced by hydrolysing ethylene-vinyl-acetate polymers. EVOH features good barrier qualities, mechanical stability, elasticity, brightness,
Description: PPOs are a family of amorphous, intransparent, light-grey-colored thermoplastics. They feature an outstanding stability
Description: Raw PE can be obtained in form of a milky white, partly crystalline powder
Description: Odourless, transparent and thermoplastic fluorocopolymer consisting of vinylidenefluoride and hexafluoropropylene. Usage: envelope for fibre-glass
Description: Containing a quite small number of ionised acid groups, these ionomers are characterised by
Description: Copolymere consisting of butadiene and acrylic nitrile. Good resistance to hydrocarbons out of mineral
Description: Application temperatures up to ca. +130°C, resistant to water, steam and weather.EPDM can be
Description: Chemistry means the science dealing with the structure and the behaviour of matter as
Description: A polymer is a chemical compund that consists of molecule chains (macromolecules). The process
Description: Permeation rate is a measurement for the amount of substance (permeate) permeating through a
Description: The process called facilitated diffusion takes place when a substance passes through a membrane
Description: Composites are materials consisting of several other materials, whereby all technical relevant properties are
Descpription: Also called melamine resin; temperable condensation product of melamine and formaldehyde; colourless and transparent.
Description: features an excellent resistance to heat and hot oil. ACM ist also resistant to
Description: Solvents are fluids that are able to contain gases, solids, and other fluids without
Description: These polyethers containing cross-linkable glycidyl groups are usually produced by polimerisation of Bisphenol A
Title: Rubber, vulcanized or thermoplastic – Rubber sheets and rubber-coated fabrics – Determination of transmission
Description: Technique for permeation rate measurement of a fluid through a film-like polymer. The material
Description: Thermoplastic of milky white color that feels like wax. Because of its special properties,
Description: Testing fuel for determining permeation and resistance properties in general. Composition: 10 vol% Ethanol
Description: Coating that prevents a substance from permeating through a such protected surface. Materials whose
Beschreibung: Norming data sheet dealing with “Plastics – Film and sheeting – determination of the
Description: Norming data sheet dealing with “Plastics – Film and sheeting – determination of the
Description: Flexible and linear structured polyolefines; the homopolymers are produced from But-1-en, the copolymers contain
Description: Functionalised polymers are chemical compounds composed of molecular chains (macromolecules) with funtionalised side chains.
Description: PNB is an amorphous polymer with high thermal stability, optical transparency and a low
Description: Polysiloxane is a normally odorless and non-toxic material that is stable within a wide
Description: Testing fuel for determining permeation and resistance properties in general. Composition: 50 Vol.% Toluene
Description: A polybutylene succinate produced from blown film has large anisotropy of the tensile strength
Description: A substance accelerating normally slow-running chemical or biochemical reactions is called catalyst. The catalyst
Title: Standard Test Method for Rubber Property -Effect of Liquids Category: Elastomer Please note: Complete
Description: Testing fuel for determining permeation and resistance properties in general. Composition: 75 vol% Fuel
Descpription: Copolymer composed of ethylene and methacrylate containing carboxylic side groups (COOH). The properties of
Description: ISO = International Organisation for Standardisation ISO is a network of the national standards
Description: PSU, an amorphous thermoplastic, belongs to the family of high temperature resistant polymers and
Description: Chemical compounds that produced by chemical methods are called chemicals. They are produced in
Description: Collective name for organic acrylic glasses composed of polymethacrylates, which are produced by polymerisation
Description: Specific temperature at which amorphous or partly crystalline polymers pass from the solid state
Description: The term “semipermeable” means half diaphanous. It is often used regarding membrane properties and
Description: Linear structured polyesters of the carbonic acid which combine many properties of metals, glass
Description: PET is often just called polyester. The material is hard and stiff, rigid, resistant
Usage: Floor covering, protective sealings, printed circuit boards, canvas, several material grades Category:Definition
Description: During a permeation rate measurement, the retentat is the depleated particle stream that leaves
Description: Fuels are materials emitting technically usable energy while they are burned.Examples for solid fuels:
Description: A permeation measurement cell is a testing unit for permeation rate measurements. The actual
Descpription: Produced by radical polymerisation of acrylic nitrile, PAN is a plastic which is insoluble
Description: Although CR combines many preferable properties, none of these reach peak values. In general,
Description: SR is produced by reaction of sodium polysulfide with an organic dichloride. The result
Description: This plastic the monomers of which are existant in form of a colorless, specificly
Descpription: Polyisobutylene is obtained by cationic polymerisation of isobutene with boric trifluoride as cataylitic agent
Description: Nafion is a copolymer of tetrafluoroethylene (Teflon) and perfluoro-3,6-dioxa-4-methyl-7-octene-sulfonic acid. Like Teflon, Nafion is
Description: This process means the determining the composition of a certain material (in this case:
Descpription: An ion is an atom or molecule which carries a positive or a negative
Description: Testing fuel for determining permeation and resistance properties in general. Composition: 92,5 vol% Fuel
Description: Both monomers can be copolymerised in any proportion. Products containing less than 30 mass
Description: Covers a wide range of temperature, good heat-resistance. Shows a very good flexibility at
Description: This thermoplastic features the following properties: mechanical strength, stiffness, hardness, high durability at high
Description: This semi-cyrstalline, white or whiteish looking polyester composed of dimethyl-therephthalate and butanediole can be
Description: The diffusion coefficient characterises the thermal migration of molecules within a certain material.SI-Unit (m2/s).
Description: A general characterisation is impractical because of the wide range of possible modifications. The
Description: Basically, there are two methods usable for seperating gases: separation by membranes (view also:
Description: A hose consisting of several material layers. The material combination provides optimisation of permeation
Description: Polyvinylfluoride (PVF) is a fluorine-containing polymer. PVF is a thermoplastic and belongs to the
Description: Being a sythetic natural rubber, IR is very similar to NR but can be
Description: Since 1988 FEP is the abbreviate form for coplymers consisting of tetrafluoroethylene (TFE) and
Description: Amine-cross-linking, thermal resistance up to +135°C, CO is only flexible at low temperatures down
Description: This polymer made of propylene has a structure similar to the one of PE
Description: Amorphous, flavourless and odourless plastic which is obtained by radical polimerisation or, on a
Description: Produced by vapor-phase-polymerisation of p-xylene. The main component is Parylene-N (poly-p-xylylene), a highly criystalline
Description: Also called “AMS 2629 Type I”. Testing fuel for determining permeation and resistance properties
Description: Testing fuel for determining permeation and resistance properties in general. Composition: 10 vol% Methyl-tert-butylether
Descpription: The word “hygroscopic” is a technical term used in chemistry and physics. Hygroscopic materials
Description: Linear-structured, gel-free copolymer resin made from Isobutylene and quite small amounts of Isoprene. Usage:
Descpription: Transparent, amporphous copolyester (synthetic resin) composed of cyclohexylene-dimethyldiole and therephthalic acid featureing a very
Description: DIN = German Institute for Standardization (registered association) German institute, responsible for standardisation and
Description: SB (SBR = styrene-butadiene-rubber) consists of Butadiene and more than 50% Styrene. They feature
Description: AU is a high-molecular organic material the structure of which is marked by a
Description: Industrial chemical, frequently used source material vor synthesis; white to light brown flakes
Description: PAIs are amorphous high-performance polymers with linear structured, mainly aromatic molecules and a high
Description: ECTFE is a fluorinecopolymer, which consists of ethylene and chlorotrifluoroethylene (CTFE). This partially fluorinated,
Description: Fuel cell technology is concerned with developing fuel cells for efficient production of energy.
Description: EFEP is a transparent terpolymer, which is consisting of ethylene, tetrafluoroethylene (TFE) and hexafluoropropylene
Description: Normally inmeltable, often amber-colored and highly temperature-resistant high-performance polymer consisting mainly of aromatic molecules.
Description: Natural product extracted from hevea brasiliensis; the cultivation is done on plantations in Malaysia,
Description: Multi-layer-foils are thermoplastic plaxtic films composed of two or more combined, different or similar,
Descpription: SBS are produced by anionic polymerisation whereat each block is built up by gradual
Description: Amorphous, transparent, amber-colored high-performance thermoplatic with a cyclic structure, containing aromatic diethers, dianhydrides and
Description: Aliphatic polymers composed of carbon monoxide, ethylene and minor amounts of other aliphatic olefines.
Description: E/TFE is a semi-crystalline, transparent and thermoplastic fluorinecopolymer, which is characterised by resistance to
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