CN104845019A - Antibacterial ABS composite material and preparation method thereof - Google Patents

Abstract

The invention discloses an antibacterial ABS composite material. The ABS composite material is characterized by being prepared from the following raw materials by weight: 40 to 80 parts of ABS resin, 5 to 10 parts of Chinese medical stone powder, 2 to 6 parts of white carbon black, 0.3 to 0.5 part of tea saponin, 0.2 to 0.4 part of dodecyl trimethyl ammonium chloride, 2 to 4 parts of eleaostearic acid, 4 to 6 parts of maleic anhydride, 1 to 2 parts of polyglycerol polyricinoleate, 0.02 to 0.04 part of dibenzoyl peroxide, 6 to 8 parts of styrene, 0.05 to 0.1 part of an aluminic acid ester coupling agent and 0.2 to 0.5 part of an anti-oxidant 1010. The ABS composite material provided by the invention has good weatherability, anti-contamination performance, antibacterial performance and mildew resistance, can effectively prevent propagation of harmful microbes and is beneficial for human health and environmental cleanness.

Description

A kind of antibacterial ABS composite material and preparation method thereof

Technical field

The present invention relates to field of compound material, be specifically related to a kind of antibacterial ABS composite material and preparation method thereof.

Background technology

ABS is the graft copolymer of vinyl cyanide (Acrylonitrile), 1,3-butadiene (Butadiene), vinylbenzene (Styrene) three kinds of monomers.The associativity of ABS and other materials is good, easily processes, finish size good stability, is easy to surface printing, coating and coating process, by painted and make and have press polished goods.ABS intensity is higher, and chemical stability is good, and over-all properties is better, has been applied in automobile, electronic apparatus, building materials packaging, machinery instrument industry.Meanwhile, ABS material also has the shortcomings such as heat-drawn wire is lower, weathering resistance is poor, limits it and applies widely.By the modification of necessity and select suitable fabrication process condition, the performance of corresponding change material, can obtain the ABS composite material meeting actual requirement.

Summary of the invention

The object of this invention is to provide a kind of antibacterial ABS composite material, there is good antimicrobial property, physical strength and good weatherability, safety and environmental protection, stable performance.

The present invention is achieved by the following technical solutions:

A kind of antibacterial ABS composite material, it is obtained by the raw material of following weight parts:

ABS resin 40-80, medical stone powder 5-10, white carbon black 2-6, tea saponin 0.3-0.5, Dodecyl trimethyl ammonium chloride 0.2-0.4, stearic acid 2-4, maleic anhydride 4-6, polyglycerol polyricinoleate 1-2, dibenzoyl peroxide 0.02-0.04, vinylbenzene 6-8, aluminate coupling agent 0.05-0.1, antioxidant 1010 0.2-0.5.

A preparation method for antibacterial ABS composite material, comprises the following steps:

(1) under 300-400 DEG C of condition, calcine 1-2h by after medical stone powder and white carbon black mixing, be ground to 300-400 order after cooling, obtain mixed powder;

(2) prior to grinding 3-5h under 60-80 DEG C of condition after the mixed powder in (1) being mixed with maleic anhydride, mix with vinylbenzene and appropriate dimethylbenzene again and jointly add reactor, insulated and stirred process 2-4h under first 80-90 DEG C of condition, 6-10h is stirred under adding dibenzoyl peroxide similarity condition again, cool and filter, wash, after vacuum-drying completely active powder;

(3) active powder in (2) is uniformly mixed 1-2h with aluminate coupling agent, stearic acid and Dodecyl trimethyl ammonium chloride under 100-110 DEG C of condition, obtains modified filler;

(4) ABS resin is mixed 5-10min with the modified filler in (3) and all the other raw materials in premixing machine, obtain mixture;

(5) added in twin screw extruder by the mixture in (4) and melt extrude granulation, obtain ABS composite material, wherein twin screw extruder extrusion temperature is 195-225 DEG C.

Advantage of the present invention is:

Utilize medical stone powder and white carbon black composite as filler, carry out surface recombination modified by maleic anhydride and cinnamic graft copolymerization to it, its toughness of effective lifting, improve fracture property and the tensile property of material, and in conjunction with the further modification of aluminate coupling agent etc., improve filler intensity and with the affinity of matrix resin and bonding force, it is made to be dispersed in matrix, the weathering resistance of material and physical strength are played a role in improving, pass through the composite of all the other compositions again, the matrix material obtained is made to have excellent mechanical property, corrosion resistance and weathering resistance, there is good anti-stain characteristic and antibacterial simultaneously, anti-fungi performance, effectively prevent harmful microbe from growing, be conducive to the clean of HUMAN HEALTH and environment.

Embodiment

Non-limiting examples of the present invention is as follows:

A kind of antibacterial ABS composite material, is prepared from by the component raw material of following weight (kg):

ABS resin 60, medical stone powder 8, white carbon black 4, tea saponin 0.4, Dodecyl trimethyl ammonium chloride 0.3, stearic acid 3, maleic anhydride 5, polyglycerol polyricinoleate 1.5, dibenzoyl peroxide 0.03, vinylbenzene 7, aluminate coupling agent 0.08, antioxidant 1010 0.3.

The preparation method of antibacterial ABS composite material comprises the following steps:

(1) under 400 DEG C of conditions, calcine 1h by after medical stone powder and white carbon black mixing, be ground to 400 orders after cooling, obtain mixed powder;

(2) prior to grinding 4h under 60 DEG C of conditions after the mixed powder in (1) being mixed with maleic anhydride, mix with vinylbenzene and appropriate dimethylbenzene again and jointly add reactor, first insulated and stirred process 3h under 80 DEG C of conditions, 8h is stirred under adding dibenzoyl peroxide similarity condition again, cool and filter, wash, after vacuum-drying completely active powder;

(3) active powder in (2) is uniformly mixed 2h with aluminate coupling agent, stearic acid and Dodecyl trimethyl ammonium chloride under 100 DEG C of conditions, obtains modified filler;

(4) ABS resin is mixed 5min with the modified filler in (3) and all the other raw materials in premixing machine, obtain mixture;

(5) added in twin screw extruder by the mixture in (4) and melt extrude granulation, obtain ABS composite material, wherein twin screw extruder extrusion temperature is 195-225 DEG C.

Carry out performance test to ABS composite material obtained above, test result is as follows:

Tensile strength (MPa): 73;

Flexural strength (MPa): 88;

Shock strength (KJ/m ²): 8.2.

Claims (2)

1. an antibacterial ABS composite material, is characterized in that, it is obtained by the raw material of following weight parts:

ABS resin 40-80, medical stone powder 5-10, white carbon black 2-6, tea saponin 0.3-0.5, Dodecyl trimethyl ammonium chloride 0.2-0.4, stearic acid 2-4, maleic anhydride 4-6, polyglycerol polyricinoleate 1-2, dibenzoyl peroxide 0.02-0.04, vinylbenzene 6-8, aluminate coupling agent 0.05-0.1, antioxidant 1010 0.2-0.5.

2. the preparation method of a kind of antibacterial ABS composite material according to claim 1, is characterized in that, comprise the following steps:

(1) under 300-400 DEG C of condition, calcine 1-2h by after medical stone powder and white carbon black mixing, be ground to 300-400 order after cooling, obtain mixed powder;

(2) prior to grinding 3-5h under 60-80 DEG C of condition after the mixed powder in (1) being mixed with maleic anhydride, mix with vinylbenzene and appropriate dimethylbenzene again and jointly add reactor, insulated and stirred process 2-4h under first 80-90 DEG C of condition, 6-10h is stirred under adding dibenzoyl peroxide similarity condition again, cool and filter, wash, after vacuum-drying completely active powder;

(3) active powder in (2) is uniformly mixed 1-2h with aluminate coupling agent, stearic acid and Dodecyl trimethyl ammonium chloride under 100-110 DEG C of condition, obtains modified filler;

(4) ABS resin is mixed 5-10min with the modified filler in (3) and all the other raw materials in premixing machine, obtain mixture;

(5) added in twin screw extruder by the mixture in (4) and melt extrude granulation, obtain ABS composite material, wherein twin screw extruder extrusion temperature is 195-225 DEG C.