CN103435996A - Antibacterial and anti-static financial POS machine plastic casing and preparation method thereof - Google Patents

Antibacterial and anti-static financial POS machine plastic casing and preparation method thereof Download PDF

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Publication number
CN103435996A
CN103435996A CN2013103473996A CN201310347399A CN103435996A CN 103435996 A CN103435996 A CN 103435996A CN 2013103473996 A CN2013103473996 A CN 2013103473996A CN 201310347399 A CN201310347399 A CN 201310347399A CN 103435996 A CN103435996 A CN 103435996A
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pos machine
plastic casing
antibacterial
agent
machine plastic
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CN103435996B (en
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陈演光
林财
庄江平
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Fujian Landi Commercial Equipment Co Ltd
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Fujian Landi Commercial Equipment Co Ltd
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Priority to PCT/CN2014/071686 priority patent/WO2015021757A1/en
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    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L69/00—Compositions of polycarbonates; Compositions of derivatives of polycarbonates
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/01—Use of inorganic substances as compounding ingredients characterized by their specific function
    • C08K3/015—Biocides
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/01—Use of inorganic substances as compounding ingredients characterized by their specific function
    • C08K3/017—Antistatic agents
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L55/00—Compositions of homopolymers or copolymers, obtained by polymerisation reactions only involving carbon-to-carbon unsaturated bonds, not provided for in groups C08L23/00 - C08L53/00
    • C08L55/02—ABS [Acrylonitrile-Butadiene-Styrene] polymers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/0005—Condition, form or state of moulded material or of the material to be shaped containing compounding ingredients
    • B29K2105/0011—Biocides

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  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)

Abstract

The invention relates to an antibacterial and anti-static financial POS machine plastic casing and a preparation method thereof. The POS machine plastic casing comprises the following compositions: 95.8-96.8% of synthetic resin, 0.5-1.0% of glass carrier silver inorganic antibacterial agent, 2-2.5% of macromolecular permanent antistatic agent, 0.2% of antioxidant, and 0.5% of coupling agent. The preparation method comprises the steps of material drying, material matching as per the ratio, stirring, pelleting and injection molding, so as to prepare the POS machine plastic casing with the antibacterial and anti-static functions. The POS machine plastic casing is excellent in antibacterial and anti-static performance, has a simple structure, and is easy to manufacture and produce.

Description

Financial POS machine plastic casing of a kind of antibacterial antistatic and preparation method thereof
Technical field
The present invention relates to financial POS machine plastic casing of a kind of antibacterial antistatic and preparation method thereof.
Background technology
At present, the financial POS machine used in medical institutions, the frequency that its shell is contacted by the user is very high, and mostly is the patient in the user, causes the shell bacteria breed serious, becomes the propagating source of bacterium, finally has influence on user's health.
Simultaneously, static to the harm of specific crowd more much larger than ordinary person, the pH value that can cause blood of human body as persistent static raises, in urine, the CaE amount increases, blood calcium reduces, to pregnant and lying-in women's Health hazard maximum, static can cause progesterone level in pregnant and lying-in women's body and descend, and allows them easily feel fatigue, agitation and headache etc.; The elderly more easily is subject to the impact of static, and the old man of cardiovascular disorder can be because static aggravates disease or brings out the irregular pulse such as ventricular premature contraction.
In hospital, monitor and EGC detecting Instrument are higher to the requirement of shelter of static, and static can affect the equipment Inspection result.
In sum, the POS machine that medical institutions are used has proposed special requirement to antibiotic, the antistatic property of POS machine shell.
Summary of the invention
The object of the present invention is to provide financial POS machine plastic casing of a kind of antibacterial antistatic and preparation method thereof, this POS machine plastic casing not only antibiotic, antistatic property good, and simple in structure, be easy to manufacture produce.
For achieving the above object, technical scheme of the present invention is: a kind of financial POS machine plastic casing of antibacterial antistatic, its moiety comprises: 95.8% ~ 96.8% synthetic resins, 0.5% ~ 1.0% glass carrier silver-based inorganic antibacterial agent, 2% ~ 2.5% polymer permanent antistatic agent, 0.2% antioxidant, 0.5% coupling agent.
In an embodiment of the present invention, the moiety of described POS machine plastic casing comprises: 95.9% synthetic resins PC+ABS raw material, 0.9% glass carrier silver-based inorganic antibacterial agent, 2.5% polymer permanent antistatic agent, 0.2% antioxidant, 0.5% coupling agent.
In an embodiment of the present invention, the moiety of described POS machine plastic casing comprises: 96.5% synthetic resins ABS raw material, 0.8% glass carrier silver-based inorganic antibacterial agent, 2% polymer permanent antistatic agent, 0.2% antioxidant, 0.5% coupling agent.
The present invention also provides the preparation method of the financial POS machine plastic casing of above-mentioned antibacterial antistatic, comprises the following steps:
(1) fully dry the polymer permanent antistatic agent;
(2) batching: the constitutive material of preparing described POS machine plastic casing in following ratio: 95.8% ~ 96.8% synthetic resins, 0.5% ~ 1.0% glass carrier silver-based inorganic antibacterial agent, 2% ~ 2.5% polymer permanent antistatic agent, 0.2% antioxidant, 0.5% coupling agent;
(3) stir: the above-mentioned constitutive material of preparation is in proportion stirred by high mixer in the temperature range of 190 ℃ ~ 230 ℃;
(4) granulation: the above-mentioned constitutive material stirred is extruded by tablets press, dried up through overcooling, last pelletizing, make the plastic matrix of antibacterial antistatic;
(5) injection moulding: by the plastic master batch made, according to base material, set various molding parameters, utilize mould to pass through the injection moulding machine injection moulding, make the POS machine plastic casing of antibacterial antistatic.
Compared to prior art, the invention has the beneficial effects as follows:
1) there is antibacterial, to all bacteriums and mould kill, restraining effect, antibiotic rate>90%, particularly to streptococcus aureus and colibacillary antibacterial effect more than 99%, thereby effectively anti-bacteria grows, avoid the POS machine to become the propagating source of bacterium, and can not produce any adverse side effect for the user.
2) have anti-static function, surface resistivity reaches 10 9~ 10 11, effectively suppress accumulating of static.
3) the raw material interpolation is easy to prepare, the proper scale production in enormous quantities, and plastic casing sterilization, antistatic effect are not subject to light, heat collapse and nondiscoloration, and its top layer all possesses same antibiotic, antistatic property to inner, and the lasting period is consistent with the Products Design life-span.
The accompanying drawing explanation
Fig. 1 is the moiety schematic diagram of the POS machine plastic casing of the embodiment of the present invention.
Embodiment
The present invention has the financial POS machine plastic casing of antibacterial antistatic function, its moiety comprises: 95.8% ~ 96.8% synthetic resins (ABS or PC+ABS raw material), 0.5% ~ 1.0% glass carrier silver-based inorganic antibacterial agent, 2% ~ 2.5% polymer permanent antistatic agent, 0.2% antioxidant, 0.5% coupling agent.Above-mentioned constitutive material makes POS machine plastic casing finished product by following concrete steps, the micro-slowly-releasing that this POS machine plastic casing finished product utilizes antiseptic-germicide to continue in shell and play antibacterial effect, the ASA coating of surperficial affine water-based effectively suppresses accumulating of static simultaneously.
The financial POS machine plastic casing of antibacterial antistatic of the present invention is prepared as follows:
(1) fully dry the polymer permanent antistatic agent, dry 4 hours in the drying machine of 70～80 ℃ of design temperatures.This step can be avoided because static inhibitor absorbs moisture, causing the antistatic property of goods to descend in granulation process.
(2) batching: the constitutive material of preparing described POS machine plastic casing in following ratio: 95.8% ~ 96.8% synthetic resins (ABS or PC+ABS raw material), 0.5% ~ 1.0% glass carrier silver-based inorganic antibacterial agent, 2% ~ 2.5% polymer permanent antistatic agent, 0.2% antioxidant, 0.5% coupling agent.
(3) stir: the above-mentioned constitutive material of preparation is in proportion stirred by high mixer in the temperature range of 190 ℃ ~ 230 ℃.
(4) granulation: the above-mentioned constitutive material stirred is extruded by dual-screw pelletizer, and through cooling trough with hair dryer is cooling dries up, last pelletizing, make the plastic matrix of antibacterial antistatic.
(5) injection moulding: by the plastic master batch made, set the various molding parameters such as mould temperature, pressure, time according to base material, utilize mould to pass through the injection moulding machine injection moulding, make the POS machine plastic casing of antibacterial antistatic.
Anti-microbial property of the present invention is realized by the glass carrier silver-based inorganic antibacterial agent:
The antibacterial ability of silver ions is known, and the chemical structure of silver has determined that silver has higher catalytic capability, and the reduction potential of high oxidation state silver is high, is enough to make its surrounding space to produce atomic oxygen.Atomic oxygen has strong oxidizing property can sterilizing, and Ag+ can attract the sulfydryl on proteolytic enzyme (SH) in bacterial body consumingly, rapidly together with it, makes the proteolytic enzyme loss of activity, causes bacterium death.After bacterium is killed by Ag+, Ag+ dissociates out again in the bacterium corpse, then contacts with other bacterium colony, carries out again and again said process, and this is also the persistent reason of silver-colored sterilization.
And the glass fabulous material that is chemical stability, glass can be used as the carrier to load metal ion, the silver that will there is antibacterial with the form appendix of silver ions in glass structure, silver ions stripping along with the dissolving of glass, thus make bill of material reveal anti-microbial property.
Below the test result that POS machine plastic casing adds the anti-microbial property that the antiseptic-germicide of different ratios obtains:
To colibacillary test result:
Figure 2013103473996100002DEST_PATH_IMAGE001
Test result to streptococcus aureus:
Figure 98980DEST_PATH_IMAGE002
Antistatic property of the present invention is realized by static inhibitor:
The polymer permanent antistatic agent belongs to hydrophilic polymer.After itself and macromolecule matrix blend, on the one hand because the motor capacity of its molecular chain is stronger, the intermolecular proton of being convenient to moves, and conducts and discharges the static charge of generation by ionic conduction; On the other hand, antistatic effect is that the dispersing morphology special by it embodies.The polymer permanent antistatic agent is mainly that the stratiform or the muscle shape that are fine on the goods top layer distribute, and forms the electroconductibility top layer, and almost is spherical distribution at centre portions, forms so-called " core shell structure ", and leaks static charge as path.Because the polymer permanent antistatic agent is to reduce material volume resistivity to reach antistatic effect, not exclusively rely on water absorbent surface, so be subject to the humidity effect of environment smaller.
Below the test result that POS machine plastic casing adds the antistatic property that the static inhibitor of different ratios obtains:
Figure 815563DEST_PATH_IMAGE001
Below by specific embodiment, the present invention is further illustrated.
Embodiment 1:
(1) dry material: static inhibitor is first fully dried before interpolation, in the drying machine of 70 ~ 80 ℃ of design temperatures, dries 4 hours.
(2) batching: prepare in following ratio: 95.9% synthetic resins PC+ABS raw material, 0.9% glass carrier silver-based inorganic antibacterial agent, 2.5% polymer permanent antistatic agent, 0.2% antioxidant, 0.5% coupling agent.
(3) stir: the batching be mixed in proportion stirs by high mixer in the temperature range of 190 ℃ ~ 230 ℃.
(4) granulation: by dual-screw pelletizer, extrude, through cooling trough and hair dryer, last pelletizing, can make the plastic matrix with antibacterial antistatic.
(5) injection moulding: by the plastic master batch made, set the various molding parameters such as mould temperature, pressure, time according to base material, utilize mould to pass through the injection moulding machine injection moulding, make the POS machine plastic casing with antibacterial antistatic.
Embodiment 2:
(1) dry material: static inhibitor is first fully dried before interpolation, in the drying machine of 70 ~ 80 ℃ of design temperatures, dries 4 hours.
(2) batching: prepare in following ratio: 96.5% synthetic resins ABS raw material, 0.8% glass carrier silver-based inorganic antibacterial agent, 2% polymer permanent antistatic agent, 0.2% antioxidant, 0.5% coupling agent.
(3) stir: the batching be mixed in proportion stirs by high mixer in the temperature range of 190 ℃ ~ 230 ℃.
(4) granulation: by dual-screw pelletizer, extrude, through cooling trough and hair dryer, last pelletizing, can make the plastic matrix with antibacterial antistatic.
(5) injection moulding: by the plastic master batch made, set the various molding parameters such as mould temperature, pressure, time according to base material, utilize mould to pass through the injection moulding machine injection moulding, make the POS machine plastic casing with antibacterial antistatic.
Major advantage of the present invention:
1, the inorganic antiseptic that the antibiotic casing plastic of known electronic product is selected is all Zeolite support, although the not enough Zeolite support of the germ resistance of glass carrier, but the stability of glass carrier and long-lasting best, can reach extremely strong antibacterial effect equally controlling well under the condition of adding proportion, therefore preferred glass carrier silver-based inorganic antibacterial agent of the present invention.
Wherein the optimization of antiseptic-germicide is 0.9%, and than the external world, used 0.5 ~ 1.5% proportional range is more accurate, effectively controls the relatively costly Costco Wholesale of antiseptic-germicide raw material.
2, the polymer permanent antistatic agent is hydrophilic polymer, can hydrophobic property polymkeric substance permanence antistatic performance, but basically do not affect other character, this is the not available advantage of other properties-correcting agent.It reaches antistatic effect to reduce material volume resistivity, not exclusively relies on water absorbent surface, so be subject to the humidity effect of environment smaller.And other type static inhibitor need to be when extraneous ambient moisture be high, the water-absorbent of static inhibitor molecule is just stronger, and antistatic property is just more remarkable.Therefore the polymer permanent antistatic agent of the preferred stability of the present invention and long-lasting the best.
3, add antiseptic-germicide and static inhibitor simultaneously, the physical property of former base material (ABS or PC+ABS) be not much affected, finished product through vibrating, fall, high cold cycle, anti-aging experiment test all keep normal non-defective unit state.
Be more than preferred embodiment of the present invention, all changes of doing according to technical solution of the present invention, when the function produced does not exceed the scope of technical solution of the present invention, all belong to protection scope of the present invention.

Claims (4)

1. the financial POS machine plastic casing of an antibacterial antistatic, it is characterized in that, the moiety of described POS machine plastic casing comprises: 95.8% ~ 96.8% synthetic resins, 0.5% ~ 1.0% glass carrier silver-based inorganic antibacterial agent, 2% ~ 2.5% polymer permanent antistatic agent, 0.2% antioxidant, 0.5% coupling agent.
2. the financial POS machine plastic casing of a kind of antibacterial antistatic according to claim 1, it is characterized in that, the moiety of described POS machine plastic casing comprises: 95.9% synthetic resins PC+ABS raw material, 0.9% glass carrier silver-based inorganic antibacterial agent, 2.5% polymer permanent antistatic agent, 0.2% antioxidant, 0.5% coupling agent.
3. the financial POS machine plastic casing of a kind of antibacterial antistatic according to claim 1, it is characterized in that, the moiety of described POS machine plastic casing comprises: 96.5% synthetic resins ABS raw material, 0.8% glass carrier silver-based inorganic antibacterial agent, 2% polymer permanent antistatic agent, 0.2% antioxidant, 0.5% coupling agent.
4. the preparation method of the financial POS machine plastic casing of a kind of antibacterial antistatic according to claim 1, is characterized in that, comprises the following steps:
(1) fully dry the polymer permanent antistatic agent;
(2) batching: the constitutive material of preparing described POS machine plastic casing in following ratio: 95.8% ~ 96.8% synthetic resins, 0.5% ~ 1.0% glass carrier silver-based inorganic antibacterial agent, 2% ~ 2.5% polymer permanent antistatic agent, 0.2% antioxidant, 0.5% coupling agent;
(3) stir: the above-mentioned constitutive material of preparation is in proportion stirred by high mixer in the temperature range of 190 ℃ ~ 230 ℃;
(4) granulation: the above-mentioned constitutive material stirred is extruded by tablets press, dried up through overcooling, last pelletizing, make the plastic matrix of antibacterial antistatic;
(5) injection moulding: by the plastic master batch made, according to base material, set various molding parameters, utilize mould to pass through the injection moulding machine injection moulding, make the POS machine plastic casing of antibacterial antistatic.
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PCT/CN2014/071686 WO2015021757A1 (en) 2013-08-10 2014-01-28 Antibacterial antistatic plastic casing for financial pos device, and preparation method thereof

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WO2015021757A1 (en) * 2013-08-10 2015-02-19 福建联迪商用设备有限公司 Antibacterial antistatic plastic casing for financial pos device, and preparation method thereof
CN104513469A (en) * 2014-11-26 2015-04-15 苏州新区佳合塑胶有限公司 Antistatic antibacterial PC (polycarbonate)/ABS (acrylonitrile-butadiene-styrene copolymer) composite material
CN107325516A (en) * 2017-07-12 2017-11-07 合肥展游软件开发有限公司 A kind of manufacturing process of router cover
CN111087749A (en) * 2019-12-28 2020-05-01 会通新材料股份有限公司 Permanent antibacterial antistatic ABS alloy material and preparation method and application thereof
CN113492487A (en) * 2021-07-13 2021-10-12 漳州市品源塑胶模具有限公司 Manufacturing method of plastic composite shell of medical electronic product

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