塑料相关英语单词

Welcome! My dear friend,

I’ve collected some of professional vocabularies and

their English definitions in plastic, molding and testing

fields. You can search the related words and information

by pushing the bellow linked alphabet.

Hope it will help you a lot!

Fortron

5/17/01

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Abrasion Resistance

The ability of a material to withstand mechanical actions such as rubbing, scraping, or

erosion, that tend progressively to remove material from its surface.

Accelerator

Additive which speeds up the rate of a cure reaction, much like a true chemical catalyst,

not truly a part of the reaction or otherwise required by or consumed in the reaction.

Acceptable Runner/Cavity Ratio

Runner systems designed for high pressure drops to minimize material usage and

increase frictional heating in the runner.

Additives/Filters/Reinforcements

Additives are materials that are added to a polymer to produce a desired change in

material properties or characteristics. A wide variety of additives are currently used in

thermoplastics, to expand or extend material properties, enhance processability, modify

aesthetics, or increase environmental resistance. Additives enhance properties like

flame retardancy and UV light stability. Reinforcing fibers modify mechanical

properties: improve modulus and lower impact. Fillers usually increase modulus values.

Fillers are also used to modify molding properties or to lower costs. Plasticisers lower

modulus and enhance flexibility.

Adhesive Assembly

The process of joining two or more plastic parts by means of an adhesive.

Afterflame

Persistence of flaming of a material after the ignition source has been removed.

After-flame time or duration of flame is the length of time for which a material

continues to flame, under specified test conditions, after the ignition source has been

removed. "Self-extinguishing" and "Self-extinguishability" are terms which are: not

recommended, owing to the risk of misunderstanding.

Afterglow

Persistence of glowing of a material after flaming has stopped or - if no flaming occurs

- after the ignition source has been removed.

Aging/Degradation/Deterioration

Aging is a change in the chemical and/or physical structure of a material caused by heat

or light. It can result in a major decrease of property values. Also called degradation or

deterioration.

Air-Less Spraying

A method of atomizing paint by hydraulic pressure.

Alloy/Blends

Terms used in the plastics industry to denote blends of polymers or copolymers with

other polymers or elastomers. - i.e. ABS/Polycarbonate. Polymer blends are

combinations of two or more different miscible polymers: mechanically entangled

rather than chemically bonded. Blending is a process of mixing or reacting two or more

polymer resins to obtain improved properties of the product. Blending allows for

tailoring of specific properties. Each individual polymer has desirable characteristics

but lacks some specific property. When these individual properties are combined the

resultant blend or alloy will exhibit characteristics from each of the parent polymers. In

general, no clear difference is seen between the terms 'alloys' and 'blends'.

Ambient Temperature

The temperature of a medium surrounding an object. The term is often used to denote

prevailing room temperature.

Amorphous/Semi-crystalline

As a thermoplastic polymer melt solidifies, the chains of molecules can combine to

form ordered molecular structures or crystallites. Amorphous polymers are polymers,

which are not able to crystallize. They are randomly oriented and do not exhibit any

ordered molecular structure at all. Amorphous resins rely on increased chain lengths

(higher molecular weight) and physical entanglements for structural integrity. The

structure "looks like spaghetti". A crystalline polymer has a polymer chain showing an

ordered molecular structure - crystalline regions surrounded by amorphous ones. The

term "crystalline" is actually wrong, since crystalline polymeric materials are only

"semi-crystalline" in nature. The crystalline structure does not exist through the entire

polymer: there are regions of ordered molecular structure and also regions of no order.

Anisotropic/Isotropic

Anisotropic means, "exhibiting properties with different values when measured along

axes in different directions". The properties in anisotropic materials may differ with the