SEBS/TPU alloy material and application thereof
A kind of alloy material, SEBS50%-95% technology, applied in the field of SEBS/TPU alloy materials, can solve the problems of high cost and complicated process technology, and achieve the effect of low cost, simple process, good compatibility and adhesive performance
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Embodiment 1
[0047] Preparation of SEBS:
[0048] Add 3000mL of pure cyclohexane (water value<20mg / kg), tetrahydrofuran in an amount equivalent to 550mg / kg of solvent, and 15mg / kg of ditetrahydrofurfurylpropane into a 5L polymerization kettle replaced with high-purity nitrogen, start stirring, and heat up To 60°C, add 6.0mmol of n-butyllithium, and then add 240g of butadiene and 60g of styrene mixed monomer, the mixed monomer is added into the polymerization kettle in a one-time way, and the reaction temperature is controlled below 100°C. Then react at 70° C. for 55 minutes.
[0049] Introduce the polymer glue solution into a 5L hydrogenation tank, raise the temperature to 70°C, add 4mL (0.2mol / L) of cocatalyst dibutyl phthalate and 0.2g of main catalyst dicyclopentadiene titanium dichloride, and pass into Hydrogen, the hydrogenation pressure is controlled at 1.5MPa, and the hydrogenation reaction takes 2 hours.
[0050] After the hydrogenation reaction is complete, transfer the hydrogen...
Embodiment 2
[0058] Add 3000mL of pure cyclohexane (water value<20mg / kg), tetrahydrofuran in an amount equivalent to 350mg / kg of solvent, and 5mg / kg of tetrahydrofurfural ethyl ether into a 5L polymerization kettle replaced with high-purity nitrogen, and start stirring. Raise the temperature to 60°C, add 6.0mmol of n-butyllithium, and then add 195g of butadiene and 105g of styrene mixed monomers, and add the mixed monomers into the polymerization kettle in a one-time way, and control the reaction temperature below 100°C , and then reacted at 70° C. for 50 minutes to obtain a polymer glue.
[0059] Introduce the polymer glue solution into a 5L hydrogenation tank, raise the temperature to 70°C, add 4mL (0.2mol / L) of cocatalyst dibutyl phthalate and 0.2g of main catalyst dicyclopentadiene titanium dichloride, and pass into Hydrogen, the hydrogenation pressure is controlled at 1.5MPa, and the hydrogenation reaction takes 2 hours.
[0060] After the hydrogenation reaction is complete, transfer...
Embodiment 3
[0071] Take an appropriate amount of the alloy material synthesized in Example 1 and PVB to make a safety glass interlayer film. The specific steps are as follows: 1. Use an open mill for masticating, set the temperature at 170°C, and pull out with a thickness of 0.8-1.0 after masticating is completed; 2. .Cut the sample into about 50g splines, use a PTFE-coated 150*150*2mm mold to press for about 5min at a temperature of 100-150°C and a pressure of 20-30MPa, then release the pressure and take it out with scissors Cut off flash, make safety glass interlayer film; 3. the safety glass interlayer of making is carried out the test of tensile and tear performance, glass bonding performance, optical performance performance, the results are shown in Table 5, Table 6, Table 7:
[0072] Table 5 Physical and mechanical properties of safety glass interlayer film
[0073]
[0074] Table 6 Adhesive properties of safety glass interlayer film and glass
[0075]
[0076]
[0077] T...
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