THE DYEABILITY AND PROPERTIES OF STRUCTURALLY MODIFIED POLYETHYLENE TEREPHTHALATE FIBRES

Simple item page
dc.contributor.authorEKPENYON, OROK EKPO
dc.date.accessioned2015-07-30T13:58:21Z
dc.date.available2015-07-30T13:58:21Z
dc.date.issued1979-02
dc.descriptionA Thesis submitted to the Ahmadu Bello University, Zaria in partial fulfilment of the requirements for the award of the degree of MASTER OF SCIENCE IN POLYMER SCIENCE AND TECHNOLOGY. Department of Chemistry, FEBRUARY, 1979 Ahmadu Bello University, Zaria, Nigeria.en_US
dc.description.abstractThe effect of solvent - treatment on the dyeability and mechanical properties of polyethylene terephthalate (PET) has been studied. The mechanical properties of the dyed PET fibres and some heat-set PET samples are also given. It was observed that strongly interacting solvents such as N,N-dimethyl formamide (DMF) and acetonitrile (CH.CN) improved the dyeability of PET which had been treated with these solvents at 74 0 C for 15 minutes prior to dyeing with disperse dyes at 100 C. The relative dye-uptake after DMF-treatment is 20 times greater than after acetonitrile treatment. Pretreatment in both solvents resulted in a lowering of tensile strength. Dyeing caused a decrease in tensile strength, extensibility and initial modulus at saturation but these properties improved when that initial saturation interval was exceeded. Solvent - treatment and heat-setting led to improvement in the crystallinity of the PET fibres. Although the densities of the various - treated PET fibres cannot be entirely relied upon due to errors caused by the use of the carbon tetrachloride - n-heptane mixture in the gradient column, the trends suggest that density increases with increase in heat-setting temperatureen_US
dc.identifier.urihttp://hdl.handle.net/123456789/6711
dc.language.isoenen_US
dc.subjectDYEABILITY,en_US
dc.subjectSTRUCTURALLY,en_US
dc.subjectMODIFIED,en_US
dc.subjectPOLYETHYLENE,en_US
dc.subjectTEREPHTHALATE,en_US
dc.subjectFIBRESen_US
dc.titleTHE DYEABILITY AND PROPERTIES OF STRUCTURALLY MODIFIED POLYETHYLENE TEREPHTHALATE FIBRESen_US
dc.typeThesisen_US
Files
Original bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
THE DYEABILITY AND PROPERTIES OF STRUCTURALLY MODIFIED POLYETHYLENE TEREPHTHALATE FIBRES.pdf
Size:
4.03 MB
Format:
Adobe Portable Document Format
Description:
Download
License bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
license.txt
Size:
1.58 KB
Format:
Item-specific license agreed upon to submission
Description:
Download
Collections
SCIENCE