Titlebook: Degradation and Stabilisation of PVC; E. D. Owen Book 1984 Elsevier Applied Science Publishers Ltd 1984 additive.additives.development.ind

独白

paroxysm

Polymeric Additives for Polyvinyl Chloride,Polymers are commercially successful due to two characteristics: (1) the inherent physical and/or chemical properties are uniquely useful, and (2) the polymer will readily accept a wide array of modifying additives to alter the base properties for the better.

Basilar-Artery

Lumbar-Stenosis

离开

Conducive

FECK

Bürgerbeteiligung und Kommunalverwaltungeric oxygen, moisture and pollutants. The extent of this degradation depends primarily on the presence within the polymer of light-absorbing structures. Polymers containing aromatic or carbonyl groups in their monomer unit are likely to absorb the terrestrial sunlight (wavelength λ>290nm) and usuall

Terminal

induct

Werner Thole,Lukas Schildknechtly low stability of these materials and the consequent problem of protecting them during the processing stage as well as from the longer term photochemical ageing processes which lead to a deterioration of their physical properties. In the case of PVC, both processes take the form of a dehydrochlori

干旱

An Event Recommendation Model Using ELM in Event-Based Social Network,m as a classification problem and ELM is extended as the classifier in the model. Extensive experiments are conducted on real EBSN datasets. The experimental results demonstrate that our approach is efficient and has a better performance than some existing methods.