Characterization of injected linear low density polyethylene (LLDPE) irradiated by gamma-ray
Creators
- 1. Instituto de Pesquisas Energeticas e Nucleares (IPEN/CNEN-SP), Sao Paulo, SP (Brazil)
Description
The aim of this paper is to investigate of gamma irradiation effects on linear low density polyethylene (LLDPE) injected. Polymers processed by gamma radiation have new physical-chemical and mechanical properties. The ionizing radiation promotes chain scission and creates free radicals which can recombine, providing their annihilation, for crosslinking or branching. The polymer was irradiated with a source of 60Co at doses of 5, 10, 20, 50 or 100 kGy at about 5 kGy s-1 rate, at room temperature. The changes in molecular structure of LLDPE were evaluated using melt flow index, gel fraction, differential scanning calorimetry (DSC), fourier transform infrared spectroscopy (FT-IR) and thermogravimetry analysis (TG). The results showed that the properties depend on dose irradiation. (author)
Files
46006740.pdf
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Additional details
Publishing Information
- Imprint Pagination
- 7 p.
- Report number
- INIS-BR--14719
Conference
- Title
- international nuclear atlantic conference
- Acronym
- INAC 2013
- Dates
- 24-29 Nov 2013
- Place
- Recife, PE (Brazil)
INIS
- Country of Publication
- Brazil
- Country of Input or Organization
- Brazil
- INIS RN
- 46006740
- Subject category
- S36: MATERIALS SCIENCE;
- Resource subtype / Literary indicator
- Conference
- Descriptors DEI
- ABSORPTION SPECTROSCOPY; COBALT 60; DENSITY; FLOW RATE; FOURIER TRANSFORMATION; GAMMA RADIATION; INFRARED SPECTRA; MOLECULAR STRUCTURE; POLYETHYLENES; RADIATION DOSES; RADIATION EFFECTS; THERMAL GRAVIMETRIC ANALYSIS
- Descriptors DEC
- BETA DECAY RADIOISOTOPES; BETA-MINUS DECAY RADIOISOTOPES; CHEMICAL ANALYSIS; COBALT ISOTOPES; DOSES; ELECTROMAGNETIC RADIATION; GRAVIMETRIC ANALYSIS; INTEGRAL TRANSFORMATIONS; INTERMEDIATE MASS NUCLEI; INTERNAL CONVERSION RADIOISOTOPES; IONIZING RADIATIONS; ISOMERIC TRANSITION ISOTOPES; ISOTOPES; MINUTES LIVING RADIOISOTOPES; NUCLEI; ODD-ODD NUCLEI; ORGANIC COMPOUNDS; ORGANIC POLYMERS; PHYSICAL PROPERTIES; POLYMERS; POLYOLEFINS; QUANTITATIVE CHEMICAL ANALYSIS; RADIATIONS; RADIOISOTOPES; SPECTRA; SPECTROSCOPY; THERMAL ANALYSIS; TRANSFORMATIONS; YEARS LIVING RADIOISOTOPES
Optional Information
- Notes
- 17 refs., 4 figs., 2 tabs.