Dental prepolymerized resin filler type composite resin
A resin and nanocomposite technology, used in dentistry, dental preparations, dental prostheses, etc., can solve the problems of poor clinical performance, poor mechanical properties, high price, etc., and achieve improved polishing performance, improved performance, and huge economic benefits. Effect
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[0013] Put 45ml of absolute ethanol solution and 9ml of 25% ammonia water into a 1L glass reactor, and stir for 20 minutes; dissolve 0.3g of PEG1000 in 65ml of deionized water, add the aqueous solution of the dispersant to the reactor, and stir at a high speed , to mix the solution evenly, slowly add 30ml, 4.48mol / L Si (OC 2 h 5 ) 4 , Stir the mixture at 25°C for 3 hours, after the reaction is over, a uniform and stable sol is obtained; after filtering and washing the sol, dry it at 80°C for 24 hours to obtain 40nm spherical silica powder body. Dissolve 100 g of this silica powder in 100 ml of deionized water, add 5 g of 3-methacryloxypropyltrimethylsilane to it, stir and react at 25°C for 3 hours, then dry at 100°C for 36 Hours, to obtain silanized spherical silica powder.
[0014] The pre-polymerized resin filler type composite resin is obtained through the following technical schemes and measures:
[0015] As described in Table 1, add methacrylate resin into a planetar...
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