Big Chemical Encyclopedia

Chemical substances, components, reactions, process design ...

Articles Figures Tables About

Fibre properties oriented polyethylene

The properties of elastomeric materials are greatly influenced by the strong inter-chain, i.e., intermolecular forces which can result in the formation of crystalline domain. Thus the elastomeric properties are those of an amorphous material having weak inter-chain interaction and hence no crystallisation. At the other extreme of polymer properties are fibre-forming polymers, such as Nylon, which when properly oriented lead to the formation of permanent crystalline fibres. In between these two extremes is a whole range of polymers, from purely amorphous elastomers to partially crystalline plastics, such as polyethylene, polypropylene, polycarbonate, etc. [Pg.8]

George et al. [27] studied stress relaxation behaviour of pineapple fibre-reinforced polyethylene composites. They found stress relaxation to be decreased with an increase of fibre content due to better reinforcing effect It is also reported by George et al. [28] that properties of fibre-reinforced composites depend on many factors like fibre-matrix adhesion, volume fraction of fibre, fibre aspect ratio, fibre orientation as well as stress transfer efficiency of the interface. Luo and Netravah [29] found an increase in the mechanical properties of green composites prepared from PALFs and poly(hydroxybutyrate-co-valerate) resin (a biodegradable polymer) with the fibres in the longitudinal direction. However, the researchers reported a negative effect of the fibres on the properties in the transverse direction. [Pg.671]

Preferred orientation in polymers (see Sect. 1.6.1) can deliver enhanced mechanical properties, especially when the level of preferred orientation is high. Most familiar to many is the case of nylon rope. Polyethylene is another material where very high strength fibres have been used to make ropes and bullet-proof vests. Two kinds of these are commercially available, namely Dyneema from DSM and Spectra from Honeywell. [Pg.70]


See other pages where Fibre properties oriented polyethylene is mentioned: [Pg.266]    [Pg.175]    [Pg.4959]    [Pg.152]    [Pg.211]    [Pg.437]    [Pg.228]    [Pg.7]    [Pg.248]    [Pg.1159]    [Pg.268]    [Pg.165]    [Pg.340]    [Pg.52]    [Pg.96]    [Pg.212]    [Pg.68]    [Pg.280]    [Pg.96]    [Pg.408]    [Pg.92]    [Pg.210]    [Pg.199]    [Pg.171]    [Pg.517]    [Pg.517]    [Pg.424]   


SEARCH



FIBRE ORIENTATION

Fibre oriented

Fibres, properties

Orientation properties

Polyethylene fibres

Polyethylene, oriented

© 2024 chempedia.info