Medically efficient, nontoxic and non-side-effect organic silicon material for dental restoration
A technology of organic silicon and side effects, which is applied in medical silicone materials for dental repairs without side effects, high efficiency, and non-toxic. It can solve the problems of sticky products, no way to make impressions, and not too slow, so as to achieve a suitable vulcanization speed and convenient impressions Effect
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Embodiment 1
[0043] Preparation of Component A
[0044] Take by weighing the following raw materials in parts by weight:
[0045] 67 parts of the first vinyl silicone oil;
[0046] Quartz powder 400 mesh 217 parts;
[0047] 70 parts of cyclohexynol;
[0048] 50% white carbon black + 50% second vinyl silicone oil 33 parts;
[0049] 0.31 parts of platinum catalyst;
[0050] 0.78 parts of PE type mold release agent;
[0051]First, add half of the above-mentioned first vinyl silicone oil, quartz powder 400 mesh, cyclohexynol, 50% white carbon black + 50% second vinyl silicone oil into the reaction kettle; ℃, connect chilled water, if <20°C, do not connect chilled water; start scraping and stirring, low speed (20rpm); control the temperature by connecting chilled water <60°C, stir for 60 minutes; then, stop stirring and scraping, Open the kettle and scrape the material. Combine the kettle, control the temperature to less than 60°C, and continue to stir for 60 minutes; stop the central di...
Embodiment 2
[0064] Preparation of Component A
[0065] Take by weighing the following raw materials in parts by weight:
[0066] 72 parts of the first vinyl silicone oil;
[0067] Quartz powder 400 mesh 229 parts;
[0068] 75 parts of cyclohexynol;
[0069] 50% white carbon black + 50% second vinyl silicone oil 36 parts;
[0070] 0.33 parts of platinum catalyst;
[0071] 0.82 parts of PE type mold release agent;
[0072] The same method as in Example 1 was used to prepare the component A mixture.
[0073] Preparation of Component B
[0074] Take by weighing the following raw materials in parts by weight:
[0075] 26 parts of the first vinyl silicone oil;
[0076] Quartz powder 400 mesh 220 parts;
[0077] 50% white carbon black + 50% second vinyl silicone oil 73 parts;
[0078] 28 parts of hydrogen-containing silicone oil;
[0079] 17 parts of 2-bromo-4-cyano-6-methoxyphenyl ethyl ester (H50614);
[0080] 0.03 parts of chain-extending hydrogen-containing silicone oil;
[0081...
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