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Amorph Thermoplastic Aromatic Thermoplastic Chemical Agents Copolymer Definition Elastomer Elastomer, Thermoset Ionomer Nitrile Testing Fuel Thermoplastic Thermoset Transparent Thermoplastic

Polychloroprene (CR)

Description: Raw monomeric chloroprene is a colourless fluid. It is insoluble in water but soluble

Time-lag

Description: Time needed by a chemical for permeating through a material. An important characteristic, e.g.

Chlorine-Sulfonated-Polyethylene (CSM or CSPE)

Description: Chlorine-sulfonated polyethylene containing 1.5% sulfur and 27% chlorine. Its properties are comparable to those

Transponder

Description: A transponder is a transmitting unit with a defined frequency range. It is used

Tetrafluoroethylene-Hexafluoropropylene-Vinylidenefluoride- Fluoroterpolymer (TFB)

Description: TFB is a thermoplastic fluoroterpolymer, which consists of tetrafluoroethylene (TFE), hexafluoropropylene (HFP) and vinylidenefluoride

Polyethylene (PE)

Description: Raw PE can be obtained in form of a milky white, partly crystalline powder

E-85 Fuel

Description: Testing fuel for determining permeation and resistance properties in general. Composition: 79 – 86

Carboxylated-Nitrile-Butadiene-Rubber (XNBR)

Description: Produced by adding a carboxylic acid group to a nitrile-rubber, this material contains more

Fluororubber (FPM)

Description: FPM is an elastomer based on fluoro-rubber. FPM is characterised by his resistance to

Permeation tubes

Description: Permeation tubes are small, inert tubes containing a chemical compund in its pure form.

Ethylene-Vinyl-Alcohol-Copolymer (EVOH)

Description: Produced by hydrolysing ethylene-vinyl-acetate polymers. EVOH features good barrier qualities, mechanical stability, elasticity, brightness,

Diffusion

Description: Diffusion is the mechanism causing microscopic particles from fluids or gases to spread out

Poly-Phenylene-Oxide (PPO)

Description: PPOs are a family of amorphous, intransparent, light-grey-colored thermoplastics. They feature an outstanding stability

Facilitated Diffusion

Description: The process called facilitated diffusion takes place when a substance passes through a membrane

Vinylidenefluoride-Hexafluoropropylene-Fluorocopolymer (VDF/HFP)

Description: Odourless, transparent and thermoplastic fluorocopolymer consisting of vinylidenefluoride and hexafluoropropylene. Usage: envelope for fibre-glass

Acidic Acrylic-acid-ionomers of ethylene

Description: Containing a quite small number of ionised acid groups, these ionomers are characterised by

Acrylic-nitrile-Butadiene-Rubber (Buna-N) (NBR)

Description: Copolymere consisting of butadiene and acrylic nitrile. Good resistance to hydrocarbons out of mineral

Ethylene-Propylene-(Diene-)Rubber (EPM and EPDM; EPM = copolymer; EPDM = terpolymer)

Description: Application temperatures up to ca. +130°C, resistant to water, steam and weather.EPDM can be

Chemistry

Description: Chemistry means the science dealing with the structure and the behaviour of matter as

Polymer

Description: A polymer is a chemical compund that consists of molecule chains (macromolecules). The process

Permeation rate

Description: Permeation rate is a measurement for the amount of substance (permeate) permeating through a

Epoxy Resins (EP)

Description: These polyethers containing cross-linkable glycidyl groups are usually produced by polimerisation of Bisphenol A

Composite

Description: Composites are materials consisting of several other materials, whereby all technical relevant properties are

Melamine-Formaldehyde (MF)

Descpription: Also called melamine resin; temperable condensation product of melamine and formaldehyde; colourless and transparent.

(general) Acrylate-rubber (ACM)

Description: features an excellent resistance to heat and hot oil. ACM ist also resistant to

Solvent

Description: Solvents are fluids that are able to contain gases, solids, and other fluids without

DIN EN ISO 6179

Title: Rubber, vulcanized or thermoplastic – Rubber sheets and rubber-coated fabrics – Determination of transmission

Pouch Method

Description: Technique for permeation rate measurement of a fluid through a film-like polymer. The material

Perflourated-dimethyl-dioxole/Tetraflourinated-ethylen-Copolymer (PDD/TFE)

Description: Thermoplastic of milky white color that feels like wax. Because of its special properties,

TF 1

Description: Testing fuel for determining permeation and resistance properties in general. Composition: 10 vol% Ethanol

Barrier Coating

Description: Coating that prevents a substance from permeating through a such protected surface. Materials whose

ISO/DIS 15105-1

Beschreibung: Norming data sheet dealing with “Plastics – Film and sheeting – determination of the

ISO 4593

Description: Norming data sheet dealing with “Plastics – Film and sheeting – determination of the

Polybutene (Polybutylene, PB)

Description: Flexible and linear structured polyolefines; the homopolymers are produced from But-1-en, the copolymers contain

Functionalised polymers

Description: Functionalised polymers are chemical compounds composed of molecular chains (macromolecules) with funtionalised side chains.

Polynorbornen (PNB)

Description: PNB is an amorphous polymer with high thermal stability, optical transparency and a low

Silicone-Rubber (MQ, PMQ, PVMQ, VMQ)

Description: Polysiloxane is a normally odorless and non-toxic material that is stable within a wide

Polyethylenesuccinate (PES)

Description: A polybutylene succinate produced from blown film has large anisotropy of the tensile strength

FAM A

Description: Testing fuel for determining permeation and resistance properties in general. Composition: 50 Vol.% Toluene

Catalyst

Description: A substance accelerating normally slow-running chemical or biochemical reactions is called catalyst. The catalyst

ASTM D471-06e1

Title: Standard Test Method for Rubber Property -Effect of Liquids Category: Elastomer Please note: Complete

M 25

Description: Testing fuel for determining permeation and resistance properties in general. Composition: 75 vol% Fuel

Ethylene-Acrylate Copolymer (EAR)

Descpription: Copolymer composed of ethylene and methacrylate containing carboxylic side groups (COOH). The properties of

Polysulfone (PSU)

Description: PSU, an amorphous thermoplastic, belongs to the family of high temperature resistant polymers and

ISO

Description: ISO = International Organisation for Standardisation ISO is a network of the national standards

Chemical

Description: Chemical compounds that produced by chemical methods are called chemicals. They are produced in

Acrylic glass

Description: Collective name for organic acrylic glasses composed of polymethacrylates, which are produced by polymerisation

Glass transition temperature (Tg)

Description: Specific temperature at which amorphous or partly crystalline polymers pass from the solid state

Semipermeable

Description: The term “semipermeable” means half diaphanous. It is often used regarding membrane properties and

Polycarbonates (PC)

Description: Linear structured polyesters of the carbonic acid which combine many properties of metals, glass

Polyethyleneterephthalate (PET)

Description: PET is often just called polyester. The material is hard and stiff, rigid, resistant

Laminate

Usage: Floor covering, protective sealings, printed circuit boards, canvas, several material grades Category:Definition

Retentat

Description: During a permeation rate measurement, the retentat is the depleated particle stream that leaves

Fuel

Description: Fuels are materials emitting technically usable energy while they are burned.Examples for solid fuels:

Permeation measurement cell

Description: A permeation measurement cell is a testing unit for permeation rate measurements. The actual

Poly-Acrylic-Nitrile (PAN)

Descpription: Produced by radical polymerisation of acrylic nitrile, PAN is a plastic which is insoluble

Chloroprene-Rubber (CR)

Description: Although CR combines many preferable properties, none of these reach peak values. In general,

Polysulfide rubber (SR)

Description: SR is produced by reaction of sodium polysulfide with an organic dichloride. The result

Butadiene-Rubber (BR)

Description: This plastic the monomers of which are existant in form of a colorless, specificly

Polyisobutylene (butyl rubber)

Descpription: Polyisobutylene is obtained by cationic polymerisation of isobutene with boric trifluoride as cataylitic agent

Nafion (copolymer made from PTFE and perflourinated Monomer)

Description: Nafion is a copolymer of tetrafluoroethylene (Teflon) and perfluoro-3,6-dioxa-4-methyl-7-octene-sulfonic acid. Like Teflon, Nafion is

Polybutylene-Terephthalate (PBT)

Description: This semi-cyrstalline, white or whiteish looking polyester composed of dimethyl-therephthalate and butanediole can be

Polymer characterisation

Description: This process means the determining the composition of a certain material (in this case:

Ion

Descpription: An ion is an atom or molecule which carries a positive or a negative

TF 2

Description: Testing fuel for determining permeation and resistance properties in general. Composition: 92,5 vol% Fuel

Ethylene-Vinyl-Acetate-Copolymers (EVA)

Description: Both monomers can be copolymerised in any proportion. Products containing less than 30 mass

Ethylen-Acrylate-rubber (AEM)

Description: Covers a wide range of temperature, good heat-resistance. Shows a very good flexibility at

Poly-Ether-Ether-Ketone (PEEK)

Description: This thermoplastic features the following properties: mechanical strength, stiffness, hardness, high durability at high

Polyester (general)

Description: A general characterisation is impractical because of the wide range of possible modifications. The

Diffusion coefficient

Description: The diffusion coefficient characterises the thermal migration of molecules within a certain material.SI-Unit (m2/s).

Gas seperation

Description: Basically, there are two methods usable for seperating gases: separation by membranes (view also:

Composite Hose

Description: A hose consisting of several material layers. The material combination provides optimisation of permeation

Polyvinylfluoride (PVF)

Description: Polyvinylfluoride (PVF) is a fluorine-containing polymer. PVF is a thermoplastic and belongs to the

Isoprene-Rubber (polyisoprene IR)

Description: Being a sythetic natural rubber, IR is very similar to NR but can be

Tetrafluoroethylene-Hexafluoropropylene-Copolymer (FEP)

Description: Since 1988 FEP is the abbreviate form for coplymers consisting of tetrafluoroethylene (TFE) and

Epichlorohydrin-Rubber (CO and ECO; CO = homopolymer; ECO = copolymer)

Description: Amine-cross-linking, thermal resistance up to +135Â°C, CO is only flexible at low temperatures down

Bromine-butyl-Rubber (BIIR)

Description: Linear-structured, gel-free copolymer resin made from Isobutylene and quite small amounts of Isoprene. Usage:

Polypropylene (PP)

Description: This polymer made of propylene has a structure similar to the one of PE

Poly-Vinylacetate

Description: Amorphous, flavourless and odourless plastic which is obtained by radical polimerisation or, on a

Parylene

Description: Produced by vapor-phase-polymerisation of p-xylene. The main component is Parylene-N (poly-p-xylylene), a highly criystalline

Jet Fuel RF

Description: Also called “AMS 2629 Type I”. Testing fuel for determining permeation and resistance properties

TF 3

Description: Testing fuel for determining permeation and resistance properties in general. Composition: 10 vol% Methyl-tert-butylether

Hygroscopic

Descpription: The word “hygroscopic” is a technical term used in chemistry and physics. Hygroscopic materials

Polychlorinated Terphenylenes (PCT)

Descpription: Transparent, amporphous copolyester (synthetic resin) composed of cyclohexylene-dimethyldiole and therephthalic acid featureing a very

Styrene-Butadiene-Copolymer (SB)

Description: SB (SBR = styrene-butadiene-rubber) consists of Butadiene and more than 50% Styrene. They feature

DIN

Description: DIN = German Institute for Standardization (registered association) German institute, responsible for standardisation and

Structure formula FKM-low temperature elastomere

Formula Category:Elastomer

Polyesterurethane (AU)

Description: AU is a high-molecular organic material the structure of which is marked by a

Bisphenol A

Description: Industrial chemical, frequently used source material vor synthesis; white to light brown flakes

Polyamide-Imide (PAI)

Description: PAIs are amorphous high-performance polymers with linear structured, mainly aromatic molecules and a high

Ethylene-Chlorotrifluoroethylene-Fluorocopolymer (ECTFE)

Description: ECTFE is a fluorinecopolymer, which consists of ethylene and chlorotrifluoroethylene (CTFE). This partially fluorinated,

Ethylene-Tetrafluoroethylene-Hexafluoropropylene-Fluoroterpolymer (EFEP)

Description: EFEP is a transparent terpolymer, which is consisting of ethylene, tetrafluoroethylene (TFE) and hexafluoropropylene

Fuel Cell Technology

Description: Fuel cell technology is concerned with developing fuel cells for efficient production of energy.

Polyimide (PI)

Description: Normally inmeltable, often amber-colored and highly temperature-resistant high-performance polymer consisting mainly of aromatic molecules.

Natural Rubber (NR)

Description: Natural product extracted from hevea brasiliensis; the cultivation is done on plantations in Malaysia,

Polyetherimide (PEI)

Description: Amorphous, transparent, amber-colored high-performance thermoplatic with a cyclic structure, containing aromatic diethers, dianhydrides and