A carregar...
Publicação
An unusual morphology and crystallization behavior in in situ formed polyphenylene oxide/polyamide 6 blends
| Nome: | Descrição: | Tamanho: | Formato: | |
|---|---|---|---|---|
| 704.97 KB | Adobe PDF |
Autores
Orientador(es)
Resumo(s)
Novel polyphenylene oxide/polyamide 6 (PPO/
PA6) blends were synthesized via in situ polymerization of
e-caprolactam with PPO dissolved in it. The introduction of
10 wt% PPO into PPO/PA6 led to phase inversion of the
blends, which was nearly completed by incorporating
15 wt% PPO into the blends. A single crystallization
temperature (Tc) of PA6 was detected for PPO/PA6 with
1–4 wt% PPO, while double Tc existed in the blends with
6–15 wt% PPO. After eliminating previous thermal his tory, PPO/PA6 containing no more than 6 wt% PPO gave a
single melting point (Tm), but the blends with 10–15 wt%
PPO exhibited double Tm. Increasing PPO content in PA6
resulted in the transformation of its crystal form from
a-crystal to c-crystal, which might be attributed to hin drance of crystallization of PA6 particles in PPO-rich
phase.
Descrição
Palavras-chave
Differential scanning calorimeter Phase inversion Polyphenylene oxide Differential scanning calorimeter melting curf Secondary phase separation . Faculdade de Ciências Exatas e da Engenharia
Contexto Educativo
Citação
Li, Y., & Yang, G. (2010). An unusual morphology and crystallization behavior in in situ formed polyphenylene oxide/polyamide 6 blends. Journal of materials science, 45, 987-992.
Editora
Springer