Improvement of impact strength in linear low density polyethylene (LLDPE) by blending with amorphous polymers

Conference · Tue Dec 31 04:00:00 EST 1996

OSTI ID:603009

Mirabella, Jr, F M ^[1]

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1. Quantum Chemical Co., Morris, IL (United States)

The objective of the current work was to improve the film impact strength of commercial linear low density polyethylene (LLDPE) resins, while maintaining or improving other desirable properties. The approach used was to blend rubber-like (i.e. essentially noncrystalline) polymer resins with the base resin LLDPE. The choice of the rubber-like components was largely dictated by their commercial availability. The rubber-like polymers chosen were poly (ethylene-vinyl acetate) [EVA], poly (ethylene-n-butyl acrylate) [EnBA], and poly (ethylene-propylene) rubber [EPR]. The weight percent range of addition of the rubber-like component was restricted to 5% - 20%. The preferred range was only up to 10%. The structure of the base LLDPE resin, rubber-like components and the blends thereof was characterized. The physical and mechanical properties of the blown films of the resin blends were measured and correlations between structure and properties were determined.

• OSTI ID: 603009
• Report Number(s): CONF-961108--
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
AMORPHOUS STATE
FILMS
IMPACT STRENGTH
MECHANICAL PROPERTIES
MIXTURES
POLYMERS
PROPYLENE
RESINS