Anti-scratch high-gloss abs/pmma material and its preparation process
An anti-scratch, ABS resin technology, applied in the field of plastics, can solve problems such as poor fluidity, low impact strength, and low hardness, and achieve the effects of excellent pencil hardness, good mechanical properties, and excellent gloss
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Embodiment 1
[0041] The anti-scratch high-gloss ABS / PMMA material is composed of the following raw materials by weight: 70 parts by weight of ABS resin, 32 parts by weight of PMMA resin, 9 parts by weight of EMA resin, 16 parts by weight of lanthanum hexaboride, 2,6-di 0.3 parts by weight of tert-butyl-p-cresol.
[0042] The preparation process of the lanthanum hexaboride is as follows: lanthanum chloride and sodium borohydride are mixed at a mass ratio of 0.04:1, placed in a vacuum resistance furnace and kept at 800°C for 3 hours, and the vacuum degree of the vacuum resistance furnace during the reaction is Keep it at 0.07MPa; after the reaction is over, the reaction product is cooled to 30°C with the furnace, and taken out; the reaction product is washed with 5% hydrochloric acid and distilled water in sequence, and the solid-to-liquid ratio of the reaction product to hydrochloric acid and distilled water is 1: 60:80 (g / mL / mL); the washed reaction product was dried at 60° C. and a vacuum...
Embodiment 2
[0049] The anti-scratch high-gloss ABS / PMMA material is composed of the following raw materials by weight: 70 parts by weight of modified ABS resin, 32 parts by weight of PMMA resin, 9 parts by weight of EMA resin, 16 parts by weight of lanthanum hexaboride, 2,6 - 0.3 parts by weight of di-tert-butyl-p-cresol.
[0050] The preparation process of the modified ABS resin is as follows: the ABS resin and the SAN resin are uniformly mixed in a high-speed mixer at a mass ratio of 1:0.07 to obtain a compound; then the compound is extruded and granulated through a twin-screw extruder, The pellets are obtained, wherein the screw speed in the basic process is 80 rpm, and the temperatures in the extruder from the first zone to the head are 190°C, 210°C, 225°C, 230°C, 235°C, 240°C, 235°C ; The pellets were dried at 80° C. for 5 hours to obtain the modified ABS resin.
[0051] The preparation process of the lanthanum hexaboride is as follows: lanthanum chloride and sodium borohydride are ...
Embodiment 3
[0058] The anti-scratch high-gloss ABS / PMMA material consists of the following raw materials by weight: 70 parts by weight of modified ABS resin, 32 parts by weight of PMMA resin, 9 parts by weight of EMA resin, and 16 parts by weight of lanthanum hexaboride modified with oleic acid , 0.3 parts by weight of 2,6-di-tert-butyl-p-cresol.
[0059] The preparation process of the modified ABS resin is as follows: the ABS resin and the SAN resin are uniformly mixed in a high-speed mixer at a mass ratio of 1:0.07 to obtain a compound; then the compound is extruded and granulated through a twin-screw extruder, The pellets are obtained, wherein the screw speed in the basic process is 80 rpm, and the temperatures in the extruder from the first zone to the head are 190°C, 210°C, 225°C, 230°C, 235°C, 240°C, 235°C ; The pellets were dried at 80° C. for 5 hours to obtain the modified ABS resin.
[0060] The preparation process of the oleic acid-modified lanthanum hexaboride is: mixing lanth...
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