Degradable plastic and preparation method thereof

• Main Authors: FAN RUIGUANG, LI JINYAN, GUO JUNCAI
• Format: Patent
• Language: Chinese; English
• Published: 16.01.2013
• Subjects: CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; MAKING GRANULES OR PREFORMS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; PERFORMING OPERATIONS; PREPARATION OR PRETREATMENT OF THE MATERIAL TO BESHAPED; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIALCONTAINING PLASTICS; THEIR PREPARATION OR CHEMICAL WORKING-UP; TRANSPORTING; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

The invention discloses degradable plastic and a preparation method thereof. The degradable plastic is made from ultrafine starch, ultrafine plant powder, synthetic degradable resin, synthetic resin, plasticizer, pro-oxidant, compatibilizer, lubricant, photosensitizer, heat sensitizer, and degradation control agent. The preparation method of the degradable plastic includes the steps of heating up a container to 70-80 DEG C; adding the ultrafine starch and the ultrafine plant powder into the container, respectively adding the plasticizer, the pro-oxidant, the compatibilizer, the degradation control agent and the synthetic resin, and mixing well; adding the synthetic into another container, sequentially adding the photosensitizer, the heat sensitizer and the lubricant at room temperature, and mixing well; and mixing well the materials and holding the temperature at 100-140 DEG C for each zone to obtain degradable plastic particles. The degradable plastic made by the preparation method has the advantages of thor