Preparation method of thermoplastic polyurethane rubber material used in eye speculum hook
A thermoplastic polyurethane and rubber material technology, applied in the field of thermoplastic polyurethane rubber material preparation, can solve the problems of low flexural strength, skin irritation, etc., and achieve the effect of good comprehensive mechanical properties
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[0033] In order to better implement the thermoplastic polyurethane rubber of the present invention, the preparation method of the thermoplastic polyurethane rubber includes the following steps:
[0034] Step 1. Add TPU resin, wax powder, silica and dispersant into the reactor, and then stir and disperse uniformly with a mixer at a speed of 800 rad / min to obtain a base material;
[0035] Step 2. Add glass fiber and titanium dioxide to the coupling reaction tank, stir and mix uniformly at 80°C at a stirring speed of 800 rad / min. While stirring, spray the silane coupling agent directly into the mixture to keep warm The mixture is prepared after 20 minutes;
[0036] Step 3. Mix the base material, mixture, antioxidant, leveling agent and zinc stearate uniformly in a mixer, and then send them to an internal mixer for mixing for 8 hours;
[0037] Step 4. After the mixing is finished, let it solidify and form to obtain a rubber compound, which can be post-processed.
[0038] Further, in step 4...
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