High-rigidity high-toughness PC/ABS+MF composite material and preparation method thereof

Abstract

The invention relates to the technical field of macromolecules, in particular to a high-rigidity high-toughness PC / ABS+MF composite material. The high-rigidity high-toughness PC / ABS+MF composite material is prepared from the following raw materials in parts by weight: PC resin 55-65 parts, ABS resin 2-10 parts, BDP fire retardant 10-15 parts, a toughener 3-10 parts, MF filler 10-20 parts, an antioxidant 0.2-1 part and a lubricant 0.5-1 part. The mixed materials are fed into a parallel twin screw extruder, and are melted, extruded and granulated to obtain the PC / ABS+MF composite material. Strength and toughness of the prepared PC / ABS+MF composite material are balanced well, bending modulus is greater than or equal to 4,000 Mpa, notched impact of a cantilever beam is greater than or equal to 60 J / m, and density is smaller than 1.30 g / cm<3>. Compared with an existing PC / ABS+10% GF or ABS+ 10% GF material for a front frame of a television, the high-rigidity high-toughness PC / ABS+MF composite material has the characteristics that damage of glass fibers to molds in a long-time production process is reduced, the problem that highlight molds need to be polished in long-time injection molding is solved obviously, production efficiency is improved, and meanwhile, compared with a PCABS+ 10% GF or ABS+ 10% GF product, PCABS+ MF has more smooth surface, and has good gold stamping effect.

Description

technical field

[0001] The invention relates to the technical field of polymers, in particular to a high-rigidity and high-toughness PC / ABS+MF composite material and a preparation method thereof. Background technique

[0002] TV front frame materials are currently mainly PC / ABS+10% GF (GF, glassfiber) or ABS+10% GF materials on the market. The innovative application of PC / ABS+10% GF and ABS+10% GF materials makes ultra-thin , TV front frame design with narrow frame becomes possible. During the use of PC / ABS+10% GF and ABS+10% GF materials, the long-term injection of glass fiber will seriously damage the mold, which will affect the high-gloss mirror effect of the part, and continuous polishing is required. For this reason, PC / ABS+MF (MF, mineral fiber) material is designed to solve the long-term injection mold polishing problem and improve the production efficiency of the TV front frame.

[0003] Polycarbonate (PC) is an amorphous thermoplastic resin with excellent comprehe...

Examples

Embodiment 1

[0028] The high-rigidity and high-toughness PC / ABS+MF composite material in the present embodiment is made up of following raw materials by weight:

[0029]

[0030] Concrete preparation method comprises the following steps:

[0031] (1) 60 parts of aromatic polycarbonate, 2 parts of acrylonitrile-butadiene-styrene terpolymer, 10 parts of methyl methacrylate-butadiene-styrene terpolymer, 0.1 part of anti- Oxygen agent 1076, 0.2 part of antioxidant 168, 0.2 part of antioxidant DLTP, 0.5 part of pentaerythritol stearate, 0.5 part of polyethylene wax, added to a mixer with nitrogen protection and mixed at high speed for 2 minutes;

[0032] (2) Under the protection of nitrogen, put the mixed material of (1) into the parallel twin-screw extruder to melt, then add 15 parts of talc powder (M05SLC) from the side feeding port of the extruder, and at the same time, extrude through the liquid pump Add 13 parts of BDP flame retardant to the side feeding port of the extruder, and extru...

Embodiment 2

[0034] The high-rigidity and high-toughness PC / ABS+MF composite material in this example is composed of the following raw materials by weight:

[0035]

[0036] Concrete preparation method comprises the following steps:

[0037] (1) 65 parts of aromatic polycarbonate, 2 parts of acrylonitrile-butadiene-styrene terpolymer, 3 parts of methyl methacrylate-butadiene-styrene terpolymer, 0.1 part of anti- Oxygen agent 1076, 0.2 part of antioxidant 168, 0.5 part of calcium stearate are added into a mixer with nitrogen protection and mixed at high speed for 2 minutes;

[0038] (2) Under the protection of nitrogen, put the mixed material of (1) into the parallel twin-screw extruder to melt, then add 20 parts of wollastonite (4W) from the side feeding port of the extruder, and at the same time extrude through the liquid pump Add 10 parts of BDP flame retardant to the side feeding port of the machine, extrude and granulate to produce high rigidity and high toughness PC / ABS+MF composi...

Embodiment 3

[0040] The high-rigidity and high-toughness PC / ABS+MF composite material in the present embodiment is made up of following raw materials by weight:

[0041]

[0042] Concrete preparation method comprises the following steps:

[0043] (1) 62 parts of aromatic polycarbonate, 10 parts of acrylonitrile-butadiene-styrene terpolymer, 3 parts of methyl methacrylate-butadiene-styrene terpolymer, 0.5 part of anti- Oxygen agent 1076, 0.3 part of antioxidant 168, 0.2 part of antioxidant DLTP, 0.5 part of pentaerythritol stearate, and 0.5 part of montan wax were added to a mixer with nitrogen protection and mixed at high speed for 2 minutes;

[0044] (2) Under the protection of nitrogen, put the mixed material of (1) into the parallel twin-screw extruder to melt, then add 10 parts of talc powder (M05SLC) from the side feeding port of the extruder, and at the same time extrude through the liquid pump Add 15 parts of BDP flame retardant to the side feeding port of the extruder, and extr...

technical field

[0001] The invention relates to the technical field of polymers, in particular to a high-rigidity and high-toughness PC / ABS+MF composite material and a preparation method thereof. Background technique

[0002] TV front frame materials are currently mainly PC / ABS+10% GF (GF, glassfiber) or ABS+10% GF materials on the market. The innovative application of PC / ABS+10% GF and ABS+10% GF materials makes ultra-thin , TV front frame design with narrow frame becomes possible. During the use of PC / ABS+10% GF and ABS+10% GF materials, the long-term injection of glass fiber will seriously damage the mold, which will affect the high-gloss mirror effect of the part, and continuous polishing is required. For this reason, PC / ABS+MF (MF, mineral fiber) material is designed to solve the long-term injection mold polishing problem and improve the production efficiency of the TV front frame.

[0003] Polycarbonate (PC) is an amorphous thermoplastic resin with excellent comprehe...

Examples

Embodiment 1

[0028] The high-rigidity and high-toughness PC / ABS+MF composite material in the present embodiment is made up of following raw materials by weight:

[0029]

[0030] Concrete preparation method comprises the following steps:

[0031] (1) 60 parts of aromatic polycarbonate, 2 parts of acrylonitrile-butadiene-styrene terpolymer, 10 parts of methyl methacrylate-butadiene-styrene terpolymer, 0.1 part of anti- Oxygen agent 1076, 0.2 part of antioxidant 168, 0.2 part of antioxidant DLTP, 0.5 part of pentaerythritol stearate, 0.5 part of polyethylene wax, added to a mixer with nitrogen protection and mixed at high speed for 2 minutes;

[0032] (2) Under the protection of nitrogen, put the mixed material of (1) into the parallel twin-screw extruder to melt, then add 15 parts of talc powder (M05SLC) from the side feeding port of the extruder, and at the same time, extrude through the liquid pump Add 13 parts of BDP flame retardant to the side feeding port of the extruder, and extru...

Embodiment 2

[0034] The high-rigidity and high-toughness PC / ABS+MF composite material in this example is composed of the following raw materials by weight:

[0035]

[0036] Concrete preparation method comprises the following steps:

[0037] (1) 65 parts of aromatic polycarbonate, 2 parts of acrylonitrile-butadiene-styrene terpolymer, 3 parts of methyl methacrylate-butadiene-styrene terpolymer, 0.1 part of anti- Oxygen agent 1076, 0.2 part of antioxidant 168, 0.5 part of calcium stearate are added into a mixer with nitrogen protection and mixed at high speed for 2 minutes;

[0038] (2) Under the protection of nitrogen, put the mixed material of (1) into the parallel twin-screw extruder to melt, then add 20 parts of wollastonite (4W) from the side feeding port of the extruder, and at the same time extrude through the liquid pump Add 10 parts of BDP flame retardant to the side feeding port of the machine, extrude and granulate to produce high rigidity and high toughness PC / ABS+MF composi...

Embodiment 3

[0040] The high-rigidity and high-toughness PC / ABS+MF composite material in the present embodiment is made up of following raw materials by weight:

[0041]

[0042] Concrete preparation method comprises the following steps:

[0043] (1) 62 parts of aromatic polycarbonate, 10 parts of acrylonitrile-butadiene-styrene terpolymer, 3 parts of methyl methacrylate-butadiene-styrene terpolymer, 0.5 part of anti- Oxygen agent 1076, 0.3 part of antioxidant 168, 0.2 part of antioxidant DLTP, 0.5 part of pentaerythritol stearate, and 0.5 part of montan wax were added to a mixer with nitrogen protection and mixed at high speed for 2 minutes;

[0044] (2) Under the protection of nitrogen, put the mixed material of (1) into the parallel twin-screw extruder to melt, then add 10 parts of talc powder (M05SLC) from the side feeding port of the extruder, and at the same time extrude through the liquid pump Add 15 parts of BDP flame retardant to the side feeding port of the extruder, and extr...

Images