| 摘要 |
<p>The invention concerns a biodegradable material comprising a matrix of latex, starch and polybetahydroxybutyrate and/or cellulose powder. This basic matrix can contain vegetable fillers, such as granulates of cereal grains or fibres of fibrous plants, for forming composite materials. The invention further concerns a method of preparing a biodegradable material, said method being characterized in that all the starting materials and the rubber in particular are in the comminuted form. These comminuted, for example, substantially granulated starting materials are mixed and plasticized in a screw-type extruder or in an injection moulding machine. The plasticized mass can be injected directly into a mould or extruded in the form of a strand which is processed to form granulates to be used as injection moulding material.</p> |
