Functionalized pyrophyllite powder and its application in strengthening and toughening pc-abs alloy

Abstract

The invention discloses functional pyrophyllite powder and an application of the functional pyrophyllite powder in a reinforced and toughened PC-ABS (polycarbonate-acrylonitrile butadiene styrene) alloy. The functional pyrophyllite powder is prepared by performing acid treatment and alkali treatment on pyrophyllite powder, and then adding methacrylamide, silicane, triphenyl phosphate and diethyl chlorophosphate for functional modification. Compared with the prior art, the functional pyrophyllite powder is applied to preparation of the toughened and reinforced electroplated PC-ABS alloy, and aprepared toughened and reinforced electroplated PC-ABS alloy material has good electroplating performance, and higher tensile strength, bending strength, impact toughness and flame retardance, is extensive in application scope, and can be used for the field of forming various products that have requirements of higher comprehensive performance and good flame resistance on materials and higher surface requirements and are required to be electroplated.

Description

technical field

[0001] The invention relates to plastic processing technology, in particular to functionalized pyrophyllite powder and its application in strengthening and toughening PC-ABS alloy. Background technique

[0002] Polycarbonate PC has the advantages of high impact strength, high light transmittance, excellent mechanical properties, good heat resistance, flame retardancy, and good dimensional stability. It is widely used in automobiles, electronic appliances, construction and other industries, but it also has some Disadvantages, such as high melt viscosity and large residual internal stress, lead to stress cracking and notch sensitivity. On the other hand, ABS is mainly composed of graft copolymers (polybutadiene as the main chain, styrene and acrylonitrile as branched copolymers), copolymers of styrene and acrylonitrile, and ungrafted polybutadiene. , has good fluidity and impact resistance. The blending of ABS and PC, on the one hand, can maintain the advanta...

Examples

Embodiment 1

[0053] A kind of production technology of toughening reinforced PC-ABS alloy, comprises the following steps:

[0054] (1) 60 parts by weight of PC, 35 parts by weight of ABS, 10 parts by weight of AS, 0.15 parts by weight of main antioxidant, 0.15 parts by weight of auxiliary antioxidant, 0.3 parts by weight of calcium stearate, 0.2 parts by weight of pentaerythritol stearate 2 parts by weight, 2 parts by weight of N-phenylmaleimide, 1.5 parts by weight of 2-methylstyrene, and 2.5 parts by weight of compatibilizer are placed in a mixer, and are mixed for 15min at 600r / min with a rotating speed to obtain a mixed material;

[0055] (2) Put the mixed material into the twin-screw extruder. The temperature distribution of the extruder is as follows: from the feed section to the machine head: 235°C, 255°C, 260°C, 260°C, 255°C, 250°C ℃, 250℃, 250℃, 250℃, die head: 260℃, control the screw speed at 240r / min, melt extrusion, water cooling, pelletizing, and dry the pellets in a blast dry...

Embodiment 2

[0060] A kind of production technology of toughening reinforced PC-ABS alloy, comprises the following steps:

[0061] (1) 60 parts by weight of PC, 35 parts by weight of ABS, 10 parts by weight of AS, 0.15 parts by weight of main antioxidant, 0.15 parts by weight of auxiliary antioxidant, 7 parts by weight of pyrophyllite powder, 0.3 parts by weight of calcium stearate, 0.2 parts by weight of pentaerythritol stearate, 1.6 parts by weight of flame retardant, 2 parts by weight of N-phenylmaleimide, 1.5 parts by weight of 2-methylstyrene, and 2.5 parts by weight of compatibilizer are placed in the mixer , mixing for 15min at a speed of 600r / min to obtain a mixed material;

[0062] (2) Put the mixed material into the twin-screw extruder. The temperature distribution of the extruder is as follows: from the feed section to the machine head: 235°C, 255°C, 260°C, 260°C, 255°C, 250°C ℃, 250℃, 250℃, 250℃, die head: 260℃, control the screw speed at 240r / min, melt extrusion, water coolin...

Embodiment 3

[0068] A kind of production technology of toughening reinforced PC-ABS alloy, comprises the following steps:

[0069] (1) 60 parts by weight of PC, 35 parts by weight of ABS, 10 parts by weight of AS, 0.15 parts by weight of primary antioxidant, 0.15 parts by weight of auxiliary antioxidant, 7 parts by weight of functionalized pyrophyllite powder, 0.3 parts by weight of calcium stearate Parts, 0.2 parts by weight of pentaerythritol stearate, 1.6 parts by weight of flame retardant, 2 parts by weight of N-phenylmaleimide, 1.5 parts by weight of 2-methylstyrene, 2.5 parts by weight of compatibilizer are placed in mixing In the container, the mixing speed was 600r / min for 15min to obtain the mixed material;

[0070] (2) Put the mixed material into the twin-screw extruder. The temperature distribution of the extruder is as follows: from the feed section to the machine head: 235°C, 255°C, 260°C, 260°C, 255°C, 250°C ℃, 250℃, 250℃, 250℃, die head: 260℃, control the screw speed at 240...

technical field

[0001] The invention relates to plastic processing technology, in particular to functionalized pyrophyllite powder and its application in strengthening and toughening PC-ABS alloy. Background technique

[0002] Polycarbonate PC has the advantages of high impact strength, high light transmittance, excellent mechanical properties, good heat resistance, flame retardancy, and good dimensional stability. It is widely used in automobiles, electronic appliances, construction and other industries, but it also has some Disadvantages, such as high melt viscosity and large residual internal stress, lead to stress cracking and notch sensitivity. On the other hand, ABS is mainly composed of graft copolymers (polybutadiene as the main chain, styrene and acrylonitrile as branched copolymers), copolymers of styrene and acrylonitrile, and ungrafted polybutadiene. , has good fluidity and impact resistance. The blending of ABS and PC, on the one hand, can maintain the advanta...

Examples

Embodiment 1

[0053] A kind of production technology of toughening reinforced PC-ABS alloy, comprises the following steps:

[0054] (1) 60 parts by weight of PC, 35 parts by weight of ABS, 10 parts by weight of AS, 0.15 parts by weight of main antioxidant, 0.15 parts by weight of auxiliary antioxidant, 0.3 parts by weight of calcium stearate, 0.2 parts by weight of pentaerythritol stearate 2 parts by weight, 2 parts by weight of N-phenylmaleimide, 1.5 parts by weight of 2-methylstyrene, and 2.5 parts by weight of compatibilizer are placed in a mixer, and are mixed for 15min at 600r / min with a rotating speed to obtain a mixed material;

[0055] (2) Put the mixed material into the twin-screw extruder. The temperature distribution of the extruder is as follows: from the feed section to the machine head: 235°C, 255°C, 260°C, 260°C, 255°C, 250°C ℃, 250℃, 250℃, 250℃, die head: 260℃, control the screw speed at 240r / min, melt extrusion, water cooling, pelletizing, and dry the pellets in a blast dry...

Embodiment 2

[0060] A kind of production technology of toughening reinforced PC-ABS alloy, comprises the following steps:

[0061] (1) 60 parts by weight of PC, 35 parts by weight of ABS, 10 parts by weight of AS, 0.15 parts by weight of main antioxidant, 0.15 parts by weight of auxiliary antioxidant, 7 parts by weight of pyrophyllite powder, 0.3 parts by weight of calcium stearate, 0.2 parts by weight of pentaerythritol stearate, 1.6 parts by weight of flame retardant, 2 parts by weight of N-phenylmaleimide, 1.5 parts by weight of 2-methylstyrene, and 2.5 parts by weight of compatibilizer are placed in the mixer , mixing for 15min at a speed of 600r / min to obtain a mixed material;

[0062] (2) Put the mixed material into the twin-screw extruder. The temperature distribution of the extruder is as follows: from the feed section to the machine head: 235°C, 255°C, 260°C, 260°C, 255°C, 250°C ℃, 250℃, 250℃, 250℃, die head: 260℃, control the screw speed at 240r / min, melt extrusion, water coolin...

Embodiment 3

[0068] A kind of production technology of toughening reinforced PC-ABS alloy, comprises the following steps:

[0069] (1) 60 parts by weight of PC, 35 parts by weight of ABS, 10 parts by weight of AS, 0.15 parts by weight of primary antioxidant, 0.15 parts by weight of auxiliary antioxidant, 7 parts by weight of functionalized pyrophyllite powder, 0.3 parts by weight of calcium stearate Parts, 0.2 parts by weight of pentaerythritol stearate, 1.6 parts by weight of flame retardant, 2 parts by weight of N-phenylmaleimide, 1.5 parts by weight of 2-methylstyrene, 2.5 parts by weight of compatibilizer are placed in mixing In the container, the mixing speed was 600r / min for 15min to obtain the mixed material;

[0070] (2) Put the mixed material into the twin-screw extruder. The temperature distribution of the extruder is as follows: from the feed section to the machine head: 235°C, 255°C, 260°C, 260°C, 255°C, 250°C ℃, 250℃, 250℃, 250℃, die head: 260℃, control the screw speed at 240...

Images