Antiviral vehicle-mounted entertainment panel PC/ABS alloy material and preparation method thereof
Technical Field
The invention relates to the field of modification of high polymer materials, in particular to an antiviral, low-emission and low-friction-coefficient PC/ABS alloy material for a vehicle-mounted entertainment panel and a preparation method thereof.
Background
The PC/ABS alloy material has the advantages of both PC and ABS, has excellent mechanical property and processability, is widely applied to the fields of automobiles, electronic appliances, communication, chemical engineering and the like, and especially has higher requirements on interior and exterior decorations of automobile consumers in recent years. Although PC/ABS has wide application, some conditions can release small-molecule volatile matters to cause symptoms of allergy, vomiting, light headedness and the like of the skin of drivers and passengers, especially in a closed environment under high-temperature conditions. Aiming at the requirements of environmental protection and safety performance of automobiles, the development of low-emission PC/ABS materials is more and more important. On the other hand, the amusement panel is a non-sprayed piece, and is relatively easy to scratch even though the PC/ABS surface hardness is high.
At present, more modified materials and patent reports are provided in the aspect of antibiosis and mildew prevention, but few modified materials and patent reports are provided in the aspect of antivirus. By combining the new coronavirus in 2019 and 2020, a vehicle-mounted entertainment panel PC/ABS alloy material with better effects of virus resistance, low diffusion and low friction coefficient is needed to be provided, so that the requirements of low diffusion, high scratch resistance, bacteria resistance and virus resistance of the vehicle interior under the current large environment are met, the requirements of various large automobile host factories on the test outline of the vehicle-mounted entertainment panel are met, and a more comfortable and safe driving environment is provided for passengers.
Disclosure of Invention
Based on the above, the invention aims to overcome the defects of the prior art and provide a PC/ABS alloy material for vehicle entertainment panels, which has the advantages of virus resistance, low diffusion and low friction coefficient.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows: an antiviral vehicle-mounted entertainment panel PC/ABS alloy material comprises the following components in parts by weight: 57-74 parts of PC resin, 20-30 parts of ABS resin, 5-10 parts of UHMWPE, 0.4-0.8 part of antiviral agent, 1-3 parts of compatilizer, 0.1-0.3 part of lubricant and 0.1-0.3 part of antioxidant; the compatilizer is at least one of polyethylene grafted maleic anhydride and polyethylene grafted glycidyl methacrylate; the antiviral agent is at least one of silver ion antibacterial agent, zinc ion antibacterial agent and nano zinc oxide.
According to the invention, the ultrahigh molecular weight polyethylene (UHMWPE) with good self-lubricating property and the specific compatilizer are selected, so that the surface friction coefficient of the PC/ABS resin is obviously reduced, the dynamic friction coefficient can reach below 0.15, in addition, the specific antiviral agent is added, and finally, the PC/ABS and gold material for the vehicle-mounted entertainment panel, which meet the requirements of low emission, low friction coefficient and high antiviral of most host factories, is prepared, the TVOC reaches below 30ugC/g, and the antiviral effect reaches above 95%.
Preferably, the silver ion antibacterial agent is at least one of a glass carrier silver ion antibacterial agent and a zirconium phosphate carrier silver ion antibacterial agent; the zinc ion antibacterial agent is at least one of a glass carrier zinc ion antibacterial agent and a zirconium phosphate carrier zinc ion antibacterial agent.
Preferably, the PC resin is bisphenol A polycarbonate, and the molecular weight of the PC resin is 17000-35000 g/mol.
Preferably, the ABS resin is a graft copolymer composed of acrylonitrile-butadiene-styrene; the weight average molecular weight of the ABS resin is 200000-800000 g/mol.
Preferably, the UHMWPE is ultrahigh molecular weight polyethylene, and the molecular weight of the UHMWPE is not less than 300 ten thousand g/mol.
Preferably, the lubricant is a stearate-based lubricant.
Preferably, the antioxidant is a compound of a hindered phenol antioxidant and a phosphite antioxidant.
Meanwhile, the invention also provides a preparation method of the antiviral vehicle-mounted entertainment panel PC/ABS alloy material, which comprises the following steps:
adding the components into a high-speed mixer, mixing for 3-5 minutes to obtain a mixture, adding the mixture into a co-rotating double-screw extruder, and performing melt extrusion, granulation, drying, cooling and packaging to obtain the antiviral vehicle-mounted entertainment panel PC/ABS alloy material; wherein the rotating speed of the high-speed mixer is 500-700 r/min, and the temperature of the double-screw extruder is 240 ℃, 260 ℃, 270 ℃, 275 ℃, 270 ℃ and 270 ℃ from the feeding section to the machine head in sequence.
Preferably, in the preparation method, double vacuum adsorption is adopted to remove the volatile component, and the vacuum degree is not more than-0.08 MPa.
Compared with the prior art, the invention has the beneficial effects that:
1. the invention prepares the high wear-resistant PC/ABS alloy material with the dynamic friction coefficient less than 0.15 by using the ultra-high molecular weight polyethylene and the specific compatilizer.
2. The invention uses inorganic antibacterial agent to research and develop antivirus for the first time, and achieves the effect of resisting virus by more than 95%.
3. The invention prepares the low-emission material by optimizing the extrusion process, wherein the TVOC reaches below 30 ugC/g.
4. The invention has simple production process and is suitable for mass production.
Detailed Description
To better illustrate the objects, aspects and advantages of the present invention, the present invention will be further described with reference to specific examples. The following examples are merely exemplary of the present invention, and the scope of the present invention is not limited thereto. In the following examples and comparative examples, the bending properties were measured in accordance with ISO 178 standard, with a bending speed of 2 mm/min; testing the notch impact of the cantilever beam according to the ISO 180 standard; emission performance was tested with reference to the popular PV3341 standard; the coefficient of friction is tested with reference to the ISO 8295 standard; the antibacterial test is carried out according to the ISO 22196 standard; antiviral testing was performed according to ISO 21702 standard; the raw material MFR is tested according to ISO 1133 standard (PC: 300 ℃/1.2kg, ABS: 220 ℃/10 kg).
The main representative materials used in the examples and comparative examples are as follows:
PC resin:
PC-1: bisphenol A polycarbonate, supplier 4530-15 (weight average molecular weight 17000 g/mol): dupont dow, usa;
PC-2: bisphenol A polycarbonate, 4310 (weight average molecular weight 28000g/mol) supplier: dupont dow, usa;
PC-3: bisphenol A polycarbonate, supplier 4530-6 (weight average molecular weight 35000 g/mol): dupont dow, usa;
PC-4: bisphenol A polycarbonate, supplier 12712 (weight average molecular weight 12000 g/mol): dada de french;
ABS resin:
ABS-1: 8364 (weight average molecular weight 200000g/mol), supplier: a Shanghai high bridge;
ABS-2: 730 (weight average molecular weight 300000g/mol), supplier: korea brocade lake;
ABS-3: 3616 (weight average molecular weight 800000g/mol), supplier: korea brocade lake;
ABS-4: PA-756H (weight average molecular weight 130000g/mol), supplier: taiwan Qimei;
ultra-high molecular weight polyethylene:
UHMWPE-1: weight average molecular weight greater than 300g/mol ten thousand, supplier: polymer of Jiangsu Zhongjiang;
UHMWPE-2: weight average molecular weight less than 300g/mol ten thousand, supplier: polymer of Jiangsu Zhongjiang;
a compatilizer:
compatibilizer-1: polyethylene grafted glycidyl methacrylate PE-g-GMA; the supplier: dupont, USA;
compatibilizer-2: polyethylene grafted maleic anhydride PE-g-MAH; the supplier: the United states of America is Dow;
compatibilizer-3: polypropylene is grafted with maleic anhydride PP-g-MAH; the supplier: chinese Buddha Bochen;
antibacterial and antiviral agents:
the trade mark is as follows: silver particle antimicrobial IPS3 (glass carrier); the supplier: tsukamuro niter, japan;
the trade mark is as follows: zinc ion antibacterial agent T112 (glass carrier); the supplier: tsukamuro niter, japan;
the trade mark is as follows: nano zinc oxide; the supplier: bofu science and technology;
the trade mark is as follows: silver-zinc compound antibacterial agent IKM 50G; the supplier: clean and beautiful in Japan;
antioxidant:
a hindered phenol antioxidant; the model is as follows: SONOX 1076; the manufacturer: shandong Sanfeng;
a phosphite ester antioxidant; the model is as follows: SONOX 168; the manufacturer: shandong Sanfeng;
lubricant:
zinc stearate; the model is as follows: BS-2818; the manufacturer: chemical industry of Huaming Tai;
calcium stearate; the model is as follows: BS-3818; the manufacturer: chemical industry of Huaming Tai;
example 1
In one embodiment of the antiviral vehicle-mounted entertainment panel PC/ABS alloy material of the present invention, the antiviral vehicle-mounted entertainment panel PC/ABS alloy material of the present embodiment is prepared by the following method:
firstly, 57 parts of PC resin 4530-15, 20 parts of ABS resin 3616, 5 parts of UHMWPE-1, 0.4 part of antiviral agent IPS3, 1 part of compatilizer PE-g-MAH, 0.1 part of lubricant BS-2818 and 0.1 part of antioxidant (SONOX 1076: SONOX 168 ═ 1:1) are weighed and mixed in a high-speed mixer for 3 minutes, wherein the rotating speed of the high-speed mixer is 500 revolutions per minute. And adding the mixed particles into a 75D co-rotating double-screw extruder for melt extrusion, granulation, drying, cooling and packaging. The temperature of the twin-screw extruder is 240 ℃, 260 ℃, 270 ℃, 275 ℃, 270 ℃ and 270 ℃ from the feeding section to the head in sequence. Double vacuum adsorption is adopted to remove volatile components, and the vacuum degree is required to be less than or equal to-0.08 MPa.
Comparative example 1 with UHMWPE and compatibilizer removed
The procedure was as in example 1 except that UHMWPE and a compatibilizer were not included.
Comparative example 2 removal of antiviral agent
The procedure was as in example 1 except that the antiviral agent was not contained.
Example 2
In one embodiment of the antiviral vehicle-mounted entertainment panel PC/ABS alloy material of the present invention, the antiviral vehicle-mounted entertainment panel PC/ABS alloy material of the present embodiment is prepared by the following method:
firstly, 34 parts of PC resin 4530-6, 40 parts of PC resin 4310, 15 parts of ABS resin 730, 15 parts of ABS resin 8364, 10 parts of UHMWPE-1, 0.3 part of antiviral nano-zinc oxide, 0.5 part of antiviral IKM50G, 3 parts of compatilizer PE-g-GMA, 0.1 part of lubricant BS-2818, 0.2 part of lubricant BS-3818 and 0.3 part of antioxidant (SONOX 1076: SONOX 168 ═ 2:1) are weighed and mixed for 5 minutes in a high-speed mixer, wherein the rotating speed of the high-speed mixer is 700 revolutions per minute. And adding the mixed particles into a 75D co-rotating double-screw extruder for melt extrusion, granulation, drying, cooling and packaging. The temperature of the double-screw extruder is 240 ℃, 260 ℃, 270 ℃, 275 ℃, 270 ℃ and 270 ℃ from the feeding section to the head; double vacuum adsorption is adopted to remove volatile components, and the vacuum degree is required to be less than or equal to-0.08 MPa.
Example 3
In one embodiment of the antiviral vehicle-mounted entertainment panel PC/ABS alloy material of the present invention, the antiviral vehicle-mounted entertainment panel PC/ABS alloy material of the present embodiment is prepared by the following method:
firstly, 30 parts of PC resin 4530-6, 36 parts of PC resin 4310, 16 parts of ABS resin 730, 10 parts of ABS resin 8364, 6 parts of UHMWPE-1, 0.3 part of antiviral agent T112, 0.4 part of antiviral agent IKM50G, 1.2 parts of compatilizer PE-g-GMA, 1 part of compatilizer PE-g-MAH, 0.1 part of lubricant BS-2818, 0.1 part of lubricant BS-3818 and 0.2 part of antioxidant (SONOX 1076: SONOX 168 ═ 1:1) are weighed and mixed in a high-speed mixer for 3.8 minutes, wherein the rotating speed of the high-speed mixer is 625 revolutions per minute. And adding the mixed particles into a 75D co-rotating double-screw extruder for melt extrusion, granulation, drying, cooling and packaging. The temperature of the double-screw extruder is 240 ℃, 260 ℃, 270 ℃, 275 ℃, 270 ℃ and 270 ℃ from the feeding section to the head; double vacuum adsorption is adopted to remove volatile components, and the vacuum degree is required to be less than or equal to-0.08 MPa.
Example 4
In one embodiment of the antiviral vehicle-mounted entertainment panel PC/ABS alloy material of the present invention, the antiviral vehicle-mounted entertainment panel PC/ABS alloy material of the present embodiment is prepared by the following method:
firstly, 54 parts of PC resin 4530-6, 16 parts of PC resin 4530-15, 14 parts of ABS resin 3616, 16 parts of ABS resin 8364, 7.5 parts of UHMWPE-1, 0.3 part of antiviral nano zinc oxide, 0.3 part of antiviral IKM50G, 1.3 parts of compatilizer PE-g-GMA, 1 part of compatilizer PE-g-MAH, 0.12 part of lubricant BS-2818 and 0.24 part of antioxidant (SONOX 1076: OX 168 ═ 1:1) are weighed and mixed in a high-speed mixer for 4.5 minutes, wherein the rotating speed of the high-speed mixer is 677 revolutions per minute. And adding the mixed particles into a 75D co-rotating double-screw extruder for melt extrusion, granulation, drying, cooling and packaging. The temperature of the double-screw extruder is 240 ℃, 260 ℃, 270 ℃, 275 ℃, 270 ℃ and 270 ℃ from the feeding section to the head; double vacuum adsorption is adopted to remove volatile components, and the vacuum degree is required to be less than or equal to-0.08 MPa.
Example 5
In one embodiment of the antiviral vehicle-mounted entertainment panel PC/ABS alloy material of the present invention, the antiviral vehicle-mounted entertainment panel PC/ABS alloy material of the present embodiment is prepared by the following method:
firstly, 57 parts of PC resin 4530-15, 20 parts of ABS resin 3616, 5 parts of UHMWPE-1, 0.4 part of antiviral agent IPS3, 1 part of compatilizer PE-g-MAH, 0.1 part of lubricant BS-2818 and 0.1 part of antioxidant (SONOX 1076: SONOX 168 ═ 1:1) are weighed and mixed in a high-speed mixer for 3 minutes, wherein the rotating speed of the high-speed mixer is 500 revolutions per minute. And adding the mixed particles into a 75D co-rotating double-screw extruder for melt extrusion, granulation, drying, cooling and packaging. The temperature of the double-screw extruder is 240 ℃, 260 ℃, 270 ℃, 275 ℃, 270 ℃ and 270 ℃ from the feeding section to the head; adopts single vacuum adsorption to remove volatile components, and the vacuum degree is-0.04 MPa.
Example 6
The procedure was as in example 1 except that the PC resin was selected differently, and in this example, the PC resin was PC-4.
Example 7
The ABS is the same as that of embodiment 1 except that the ABS is selected differently, and in this embodiment, the ABS is ABS-4.
Example 8
The process is the same as that of example 1 except that the UHMWPE is selected differently, and in this example, the UHMWPE has a weight average molecular weight of less than 300g/mol ten thousand and is UHMWPE-2.
The selection of ingredients and contents in specific examples 1-8 and comparative examples 1-2 are shown in table 1, and the performance data are shown in table 2:
TABLE 1 ingredients and contents in examples 1 to 8 and comparative examples 1 to 2
TABLE 2 Performance data for examples 1-8 and comparative examples 1-2
According to the table 2, the surface friction coefficient of the PC/ABS resin is obviously reduced by selecting the ultra-high molecular weight polyethylene (UHMWPE) and the compatilizer, the dynamic friction coefficient can reach below 0.15, and the PC/ABS and gold material for the vehicle-mounted entertainment panel, which meet the requirements of low diffusion, low friction coefficient and high antiviral property of most host factories, is finally prepared by adding the antiviral agent, wherein the TVOC is less than or equal to 30ugC/g, and the antiviral effect is more than 95%.
Comparing example 5 with example 1, it can be seen that the process in example 5 adopts single vacuum adsorption to devolatilize, the vacuum degree is-0.04 MPa, the TVOC of the PC/ABS material obtained in example 5 is larger than that of example 1, and the antiviral effect is also inferior to that of example 1; comparing example 6 with example 1, it can be seen that the molecular weight of PC-4 in example 6 is less than 17000, and the mechanical properties and antiviral effect are inferior to those of example 1; comparing example 7 with example 1, it can be seen that the molecular weight of ABS in example 7 is not in the range of 200000-800000 g/mol, and the mechanical properties, dynamic friction coefficient and antiviral effect are all inferior to those of example 1; comparing the comparative example 1 with the example 1, the compatilizer in the comparative example 1 is polypropylene grafted maleic anhydride PP-g-MAH, and the mechanical property, the dynamic friction coefficient and the antiviral effect of the compatilizer are all inferior to those of the example 1; comparing comparative example 2 with example 1, it can be seen that comparative example 1 does not contain antiviral agent, and both the mechanical properties and antiviral effect are inferior to those of example 1; comparing example 8 with example 1, it can be seen that in example 8, the UHMWPE with a weight average molecular weight of less than 300g/mol ten thousand has a poorer antiviral effect than in example, and a higher coefficient of dynamic friction than in example 1.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting the protection scope of the present invention, and although the present invention is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.