| Although the study on the glue for wood based on the starch has been carried out for long time,the methods also are diverse, there still is not one way live out. the problem lies in that the criterion of water tolerance can not be reached. This paper aims at manufacturing one new kind glue of high quality for wood through transforming the starch in microscopic. Two methods was studied in this paper. The first method modified the starch oxidized by polyacrylamide inadvance, then TDI blocked by sodium bisulfite was added.for the excellent performance of TDI on resistant to water,the glue can be adopted by plants. The second method differs from the first, which modified the starch by acryamide monomer and the starch is copolymerizationed by,what is more is that this scheme costs less but performs better. |
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