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vinylon
Sign in to saveAlso known as vinalon, polyvinyl formal, Juche fiber, PVF
thumb|North Korean men wearing uniforms made from vinylon Vinylon, also known as Vinalon (more common in Korean sources), is a synthetic fiber produced from reaction between polyvinyl alcohol (PVA) fiber and formaldehyde. Chemically it is polyvinyl formal (PVF). Vinylon was first developed in Japan in 1939 by , Ri Sung-gi, and H. Kawakami. In North Korea, Ri Sung-gi found a route to produce PVA from domestic anthracite (black coal) and limestone as raw materials. Trial production began in 1954 and in 1961 the massive "Vinylon City" was built in Hamhung, North Korea. Vinylon's widespread usage
~9 min read
Article
12 sectionsContents
- Applications
- Properties
- Production
- History
- 1939: colonial introduction
- 1961: Vinylon City, Hungnam
- 1990s–2000s
- 2010 reopening
- Historical significance
- References
- Further reading
- External links
thumb|North Korean men wearing uniforms made from vinylon Vinylon, also known as Vinalon (more common in Korean sources), is a synthetic fiber produced from reaction between polyvinyl alcohol (PVA) fiber and formaldehyde. Chemically it is polyvinyl formal (PVF). Vinylon was first developed in Japan in 1939 by , Ri Sung-gi, and H. Kawakami. In North Korea, Ri Sung-gi found a route to produce PVA from domestic anthracite (black coal) and limestone as raw materials. Trial production began in 1954 and in 1961 the massive "Vinylon City" was built in Hamhung, North Korea. Vinylon's widespread usage in North Korea is often pointed to as an example of the implementation of the Juche philosophy, and it is known as the '''Juche fiber'''.
PVF, in fiber form, is a useful thermoplastic resin on its own, most commonly used as electric wire insulation.