TERMIUM Plus®

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IMPACT MODIFIER [2 records]

Filter results by subject field Alphabetical list of terms

Filter results by subject field

Alphabetical list of terms

Record 1 1997-11-17

English

Subject field(s)
  • Plastics Manufacturing
CONT

Unplasticized PVC presents some processing difficulties due to its high melt viscosity; in addition, the finished product is too brittle for some applications. To overcome these problems and to produce toughening, certain polymeric additives are usually added to the PVC. These materials, known as impact modifiers, are generally semicompatible and often somewhat rubbery in nature. Among the most important impact modifiers in use today are butadiene-acrylonitrile copolymers (nitrile rubber), acrylonitrile-butadiene-styrene (ABS) graft terpolymers, methacrylate-butadiene-styrene (MBS) terpolymers, chlorinated polyethylene, and some polyacrylates.

CONT

The advantage of the [stretch blow molding] process is an improvement in resin performance, such as bottle impact strength, cold strength, transparency, surface gloss, stiffness, and gas barrier, which permit lighter weight, lower cost bottles, use of lower cost resins with less impact modifiers, or products packaged that normally would not be suitable.

French

Domaine(s)
  • Plasturgie
CONT

Les antichocs sont des polymères (PE chloré) et surtout copolymères du type ABS ou MBS (méthacrylate-butadiène, styrène) qui forment des systèmes multiphases avec le polymère à renforcer et améliorent de ce fait sa résistance au choc. On les utilise en concentration de quelques pour cents, en particulier dans le PVC.

Spanish

Campo(s) temático(s)
  • Fabricación de plásticos
Save record 1

Record 2 1997-07-09

English

Subject field(s)
  • Plastic Materials
CONT

Styrene maleic anhydride(SMA) thermoplastics are available as copolymers and terpolymer alloys. The copolymer form is the product of mass copolymerization of styrene and maleic anhydride; rubber impact modifier may be incorporated. The terpolymer alloys incorporate acrylonitrile-butadiene-styrene type components. All grades are rated as impact resistant.

French

Domaine(s)
  • Matières plastiques

Spanish

Save record 2

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