Resin composition for molding material and molded article made therefrom
A technology of resin composition and molding material, applied in the field of resin composition for molding material, can solve the problems of low moldability, exudation of plasticizer, low hardness and tear strength of molded products, etc., and achieves excellent processability, hardness, etc. and excellent tear strength
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[0114] Examples 1 to 22, Comparative Examples 1 to 5
[0115] The acrylic polymers A1 to A8, B1 to B2, dioctyl phthalate (DOP), diisononyl phthalate (DINP), and the acrylic polymers obtained in the above production examples were measured in the proportions shown in Table 2. Polyether ester, adipic acid polyester and other polyester plasticizers, butyl acrylate polymers with a molecular weight of 1,000 to 10,000, acrylic oligomers such as butyl acrylate-styrene copolymers, and polypropylene glycol, using Banbury The mixer is stirred to obtain a mixture.
Example
[0116] Examples 23-27
[0117] The acrylic polymer A1, diisononyl phthalate, calcium carbonate, antioxidant, and lubricant obtained in the above production example were measured in the ratio shown in Table 3, and stirred with a Banbury mixer to obtain a mixture .
[0118] For Examples 1 to 27 and Comparative Examples 1 to 5, a co-rotating twin-screw extruder (four-hole die) was used to set the temperature in the order of C1, C2, C3, C4, C5, C6, C7, D It is specified as 110℃, 150℃, 170℃, 180℃, 190℃, 190℃, 200℃, 200℃. Under the conditions of engine speed 230rpm and feeder speed 15rpm, it will be made according to the formula in Table 2 The mixture is made into pills. The pellets were kneaded at a set temperature of 160°C using an 8-inch test roll to form a sheet. Table 2 shows the evaluation results of workability in roll forming and various physical properties of the obtained sheet.
[0119] In addition, for Examples 23 to 27, the mixtures blended in accordance with the blending re...
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