Studies of the thermal and photodegradation of two commercial polymers, stabilized and unstabilized low-density polyethylene (LDPE) , show the effects of weathering in differential scanning calorimetry (DSC) curves. The shape and the size of the melting peak vary significantly in thermal aging and i
Natural weathering of low density polyethylene—III: Mechanical properties
✍ Scribed by F.P. La Mantia
- Publisher
- Elsevier Science
- Year
- 1984
- Tongue
- English
- Weight
- 199 KB
- Volume
- 20
- Category
- Article
- ISSN
- 0014-3057
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✦ Synopsis
ANtract--Mechanical properties are presented for LDPE samples naturally weathered for various periods both in the absence and the presence of a light stabilizer system. Qualitative property/structure correlations are proposed, taking into account also previous structural results for the same samples.
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The effects of natural weathering on mechanical properties and chemical structure of low density polyethylene have been studied. It is found that no simple correlation exists between the development of carbonyl groups and mechanical properties such as stress or strain at break or elastic modulus. It