Dental plastic light curing compound material dowel and preparation method thereof
A composite material, light curing technology, applied in the direction of dental preparations, dentistry, medical science, etc., can solve the problems of long thermal curing process cycle, unsatisfactory, affecting aesthetics, etc., to achieve the effect of reducing the number of visits and curing time.
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[0031] Example 1: Weigh 80 grams of bisphenol A diglycidyl methacrylate in a small glass and store in a vacuum drying oven at 60°C. Weigh 0.6 g of ethyl ether, 1 g of ethyl p-methylaminobenzoate, 0.15 g of azobisisobutyronitrile, 20 g of methyl methacrylate, and dissolve in 20 g of dimethacrylic acid triethylene glycol In the ester, stir evenly to obtain mixture A. Mix the mixture A and bisphenol A glycidyl methacrylate uniformly, and store in the dark at room temperature for 15 minutes to obtain the mixture B. The mixture B is diluted with 130 grams of acetone, and the unidirectional high-strength glass fiber is impregnated to obtain a prepreg. Leave the prepreg in the air until the acetone volatilizes so that it does not stick to the hands, and place it in the mold according to the size of the mold. After the prepreg is fully spread, light curing is carried out for 2 hours to obtain the required preformed fiber post.
Example
[0032] Example 2: Weigh 85 grams of bisphenol A diglycidyl methacrylate in a small glass cup and store in a vacuum drying oven at 60°C. Weigh 0.8 g camphorquinone, 1.2 g ethyl p-methylaminobenzoate, 0.26 g dibenzoyl peroxide, 15 g hydroxyethyl methacrylate, and dissolve in 25 g triethylene glycol dimethacrylate In, stir evenly to obtain mixture A. Mix the mixture A and bisphenol A glycidyl methacrylate uniformly, and store in the dark at room temperature for 15 minutes to obtain the mixture B. The mixture B is diluted with 150 g of ethanol, and the unidirectional E-glass fiber is impregnated to obtain a prepreg. Leave the prepreg in the air until the ethanol evaporates until it is not sticky, and place it in the mold according to the size of the mold. After the prepreg is full, carry out UV curing for 2 hours, and slowly take out the fiber prepreg from the mold. That is, the required pre-formed fiber post is prepared.
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