Biocomposite material
AssigneeOrganoclick AB
InventorJuhanes Aydin
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Abstract
The present invention relates generally to biocomposite materials made of cellulose and wheat bran and/or oat husk, prepared by methods comprising mixing the husk or bran with an aqueous alkaline solution, stirring and/or homogenizing the mixture, admixing with cellulose pulp and thermoforming the material under conditions admitting curing, thereby obtaining improvements in strength measured as at least one of strain at peak (%), stress at peak (%) and Young's modulus (MPa).
Claims12
A process for preparing a biocomposite material comprising a bioadditive from cereal husks and/or brans, said process comprising the steps:
- (a) mixing the cereal husk and/or bran with an aqueous alkaline solution with a pH of at least 7, in order to provide a bioadditive,
- (b) admixing the bioadditive with a dispersion of cellulose pulp to provide a biocomposite material;
- (c) diluting the mixture of bioadditive and cellulose pulp to a level of 0.25 to 2% dry fiber;
- (d) collecting the diluted mixture in a sieve or on a filter;
- and
- (e) thermoforming the collected mixture to form the biocomposite material, thereby curing said biocomposite material.
A process for preparing a biocomposite material comprising a bioadditive from cereal husks and/or brans, said process comprising the steps:
- (a) mixing the cereal husk and/or bran with an aqueous alkaline solution with a pH of at least 7, in order to provide a bioadditive,
- (b) collecting a water soluble fraction of the bioadditive from step (a) and admixing the water soluble fraction of the bioadditive with a dispersion of cellulose pulp to provide a biocomposite material;
- and
- (c) thermoforming the biocomposite material, thereby curing said biocomposite material.
Dependencies are inferred from the claim text.