A kind of polymer compound and preparation method thereof
A composite and polymer technology, applied in the fields of polyoxymethylene composite and its preparation, polymer composite and its preparation, can solve the problems of decreased strength and rigidity, increased non-degradable temperature, and little POM modification effect, etc. Achieve the effect of improved elongation at break and improved thermal stability
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Embodiment 1-1
[0033] Dissolve 10g of β-cyclodextrin in 30ml of DMF solvent and 1g of polyester thermoplastic polyurethane elastomer in 20mL of DMF solvent to obtain the DMF solution of cyclodextrin and the DMF solution of polyurethane respectively; then drop the above DMF solution of polyurethane at 70°C Add to the DMF solution of the above cyclodextrin, heat and stir for 4 hours, then cool down to room temperature, settle in excess distilled water after standing overnight to obtain the cyclodextrin inclusion complex of polyurethane, fully dry and grind for later use.
Embodiment 1-2
[0035] Dissolve 20g of β-cyclodextrin in 60ml of DMF solvent and 1g of polyester thermoplastic polyurethane elastomer in 20mL of DMF solvent to obtain the DMF solution of cyclodextrin and the DMF solution of polyurethane respectively; then drop the above DMF solution of polyurethane at 50°C Add it to the DMF solution of the above cyclodextrin, heat and stir for 8 hours, then cool down to room temperature, settle in excess distilled water after standing overnight to obtain the cyclodextrin inclusion complex of polyurethane, fully dry and grind it for later use.
Embodiment 1-3
[0037] Dissolve 15g of β-cyclodextrin in 45ml of DMF solvent and 1g of polyester thermoplastic polyurethane elastomer in 20mL of DMF solvent to obtain the DMF solution of cyclodextrin and the DMF solution of polyurethane respectively; then drop the above DMF solution of polyurethane at 90°C Add to the DMF solution of the above cyclodextrin, heat and stir for 2 hours, then cool down to room temperature, settle in excess distilled water after standing overnight to obtain the cyclodextrin inclusion compound of polyurethane, fully dry and grind for later use.
[0038] Then take the cyclodextrin inclusion compound prepared in Examples 1-1 to 1-3 to prepare a polyoxymethylene complex, and the specific examples are as follows:
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