Avancerad sökning

Hittade 3 avhandlingar som matchar ovanstående sökkriterier.

  1. 1. Tuning the long-term properties to control biodegradation by surface modifications of agricultural fibres in biocomposites

    Författare :Thorsak Kittikorn; Monica Ek; Ferruccio Doghieri; KTH; []
    Nyckelord :agricultural fibres; biocomposites; renewable polymers; PP; PLA; PHBV; surface modifications; water uptake; microbial growth; biodegradation;

    Sammanfattning : Sustainable polymeric materials put emphasis on mastering the whole life-cycle of polymeric materials. This includes the choice of raw materials, selection of synthesis and processing, environmental impact during long-term use followed by detailed knowledge about recycling and waste management. LÄS MER

  3. 2. Chemical and morphological characterisation of long-term properties of environmentally degradable polymers

    Författare :Carina Eldsäter; KTH; []
    Nyckelord :;

    Sammanfattning : The environmental degradation of an aliphatic polyester,poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV) and a polyesteramide,poly(butylene adipate-co-amino caproate) (PEA) was studied to answer questionsregarding their life-time in natural environments,e.g.municipal solid waste compost. LÄS MER

  4. 3. Influence of the degradation mechanism on the molecular weight changes for some degradable polymers

    Författare :Bengt Erlandsson; KTH; []
    Nyckelord :;

    Sammanfattning : The influence of degradation mechanism on molecular weightchanges was investigated for certain degradable polymers. Thepolymers investigated were modified low density polyethylene(LDPE), poly(ethylene-co-vinyl alcohol) (EVOH) and aliphatic polyesters. LÄS MER