CN111471289A - Antibacterial shading PC card base material composition and preparation method thereof - Google Patents
Antibacterial shading PC card base material composition and preparation method thereof Download PDFInfo
- Publication number
- CN111471289A CN111471289A CN202010540495.2A CN202010540495A CN111471289A CN 111471289 A CN111471289 A CN 111471289A CN 202010540495 A CN202010540495 A CN 202010540495A CN 111471289 A CN111471289 A CN 111471289A
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- Prior art keywords
- antibacterial
- parts
- base material
- card base
- material composition
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- 239000000463 material Substances 0.000 title claims abstract description 41
- 230000000844 anti-bacterial effect Effects 0.000 title claims abstract description 32
- 239000000203 mixture Substances 0.000 title claims abstract description 31
- 238000002360 preparation method Methods 0.000 title abstract description 7
- 239000004417 polycarbonate Substances 0.000 claims abstract description 61
- 239000003242 anti bacterial agent Substances 0.000 claims abstract description 45
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims abstract description 41
- FOIXSVOLVBLSDH-UHFFFAOYSA-N Silver ion Chemical compound [Ag+] FOIXSVOLVBLSDH-UHFFFAOYSA-N 0.000 claims abstract description 23
- PTFCDOFLOPIGGS-UHFFFAOYSA-N Zinc dication Chemical compound [Zn+2] PTFCDOFLOPIGGS-UHFFFAOYSA-N 0.000 claims abstract description 23
- 229920000515 polycarbonate Polymers 0.000 claims abstract description 23
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 19
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 18
- 239000004408 titanium dioxide Substances 0.000 claims abstract description 17
- 239000012745 toughening agent Substances 0.000 claims abstract description 15
- 239000002994 raw material Substances 0.000 claims abstract description 12
- 238000001125 extrusion Methods 0.000 claims abstract description 9
- 238000012545 processing Methods 0.000 claims abstract description 5
- 238000004519 manufacturing process Methods 0.000 claims abstract description 4
- 235000010215 titanium dioxide Nutrition 0.000 claims description 19
- 125000003118 aryl group Chemical group 0.000 claims description 6
- 150000001412 amines Chemical class 0.000 claims description 3
- 229920006225 ethylene-methyl acrylate Polymers 0.000 claims description 3
- 239000012463 white pigment Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 claims 1
- 241000894006 Bacteria Species 0.000 abstract description 8
- 210000002421 cell wall Anatomy 0.000 abstract description 4
- MSFSPUZXLOGKHJ-UHFFFAOYSA-N Muraminsaeure Natural products OC(=O)C(C)OC1C(N)C(O)OC(CO)C1O MSFSPUZXLOGKHJ-UHFFFAOYSA-N 0.000 abstract description 2
- 108010013639 Peptidoglycan Proteins 0.000 abstract description 2
- 230000001580 bacterial effect Effects 0.000 abstract description 2
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000009395 breeding Methods 0.000 abstract description 2
- 230000001488 breeding effect Effects 0.000 abstract description 2
- 230000004064 dysfunction Effects 0.000 abstract description 2
- 150000001875 compounds Chemical class 0.000 description 4
- 230000002779 inactivation Effects 0.000 description 4
- 238000005299 abrasion Methods 0.000 description 2
- 238000013329 compounding Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 210000003501 vero cell Anatomy 0.000 description 2
- 241001529459 Enterovirus A71 Species 0.000 description 1
- 241000700605 Viruses Species 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 210000004027 cell Anatomy 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005469 granulation Methods 0.000 description 1
- 230000003179 granulation Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 229960005486 vaccine Drugs 0.000 description 1
Classifications
-
- 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
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2237—Oxides; Hydroxides of metals of titanium
- C08K2003/2241—Titanium dioxide
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
The invention discloses an antibacterial shading PC card base material composition which is prepared from the following raw materials in parts by weight: 70-80 parts of polycarbonate, 18-30 parts of titanium dioxide, 2-10 parts of a toughening agent, 0.1-0.4 part of an antioxidant, 0.1-0.6 part of a silver ion antibacterial agent and 0.1-0.6 part of a zinc ion antibacterial agent. The preparation method comprises the steps of fully mixing the components, and then sequentially carrying out extrusion and material manufacturing, wherein the processing temperature during extrusion is 250-270 ℃. According to the invention, the silver ion and zinc ion antibacterial agents are compounded to react with cell wall peptidoglycan adsorbed on the surface of the product, so that bacterial dysfunction is caused, and finally cell wall rupture is caused, thereby achieving the purpose of killing bacteria, preventing the breeding of bacteria and achieving the antibacterial effect of the product. The chip card is not easy to pollute and breed bacteria when contacting with the outside and after repeated use, and is more beneficial to the human health of a user.
Description
Technical Field
The invention belongs to the technical field of PC composite materials, and particularly relates to a compound antibacterial shading PC card base material composition and a preparation method thereof.
Background
The common PC card base material composition in the prior art is prepared from polycarbonate and special titanium dioxide, the titanium dioxide can be uniformly distributed in the polymer, and the PC card base material composition has good compatibility with the polycarbonate, so that a very thin product can achieve the effects of shading and no light passing through lamp beads, the mechanical property of the product cannot be influenced, the PC card base material composition is widely used as a chip card material, and a card prepared from the PC card base material composition in the prior art has stable size and excellent toughness. These advantages of PC card base material composition make it widely used in chip card products such as bank card, traffic card, security card and social security card. However, the cards are frequently used by people, some cards are even used for decades, a lot of abrasion or scratches can be generated on the card surface after a long time, a lot of bacteria are easy to breed at the abrasion part of the card surface, and the shading PC card base material in the prior art does not have an antibacterial function when being used for products, so that a lot of sanitation hidden troubles can be generated after long-term use. Based on the above-mentioned drawbacks of the prior art, there is a need to provide a light-shielding PC card base material composition with antibacterial function.
Disclosure of Invention
The invention provides a compound antibacterial shading PC card base material composition and a preparation method thereof, aiming at overcoming the defects in the prior art.
The invention is realized by the following technical scheme: an antibacterial shading PC card base material composition is composed of the following raw materials in parts by weight: 70-80 parts of polycarbonate, 18-30 parts of titanium dioxide, 2-10 parts of a toughening agent, 0.1-0.4 part of an antioxidant, 0.1-0.6 part of a silver ion antibacterial agent and 0.1-0.6 part of a zinc ion antibacterial agent.
As a preferred embodiment of the invention, the antibacterial shading PC card base material composition is composed of the following raw materials in parts by weight: 72-78 parts of polycarbonate, 20-28 parts of titanium dioxide, 3-8 parts of a toughening agent, 0.2-0.3 part of an antioxidant, 0.2-0.5 part of a silver ion antibacterial agent and 0.3-0.5 part of a zinc ion antibacterial agent.
As the best mode of the invention, the antibacterial shading PC card base material composition is composed of the following raw materials in parts by weight: 75 parts of polycarbonate, 25 parts of titanium dioxide, 5 parts of a toughening agent, 0.25 part of an antioxidant, 0.3 part of a silver ion antibacterial agent and 0.4 part of a zinc ion antibacterial agent.
Preferably, the polycarbonate is an aromatic polycarbonate, and the average molecular weight of the aromatic polycarbonate is 2 to 3 ten thousand.
Preferably, the titanium dioxide is a rutile titanium white pigment.
Preferably, the toughening agent is an ethylene methyl acrylate copolymer.
Preferably, the antioxidant is a hindered amine antioxidant.
Preferably, the silver ion antibacterial agent is an inorganic silver ion antibacterial agent.
Preferably, the zinc ion antibacterial agent is an inorganic zinc ion antibacterial agent.
The invention also discloses a preparation method of the antibacterial shading PC card base material composition, which comprises the steps of fully mixing the polycarbonate, the titanium dioxide, the toughening agent, the antioxidant, the silver ion antibacterial agent and the zinc ion antibacterial agent, and then sequentially carrying out extrusion and material manufacturing, wherein the processing temperature during extrusion is 250-270 ℃.
The invention has the beneficial effects that: compared with the prior art, the common shading PC card base material in the prior art cannot resist bacteria when used for products, the shading PC card base material has better antibacterial effect by compounding the silver ion antibacterial agent and the zinc ion antibacterial agent, and the compounding of the silver ion antibacterial agent and the zinc ion antibacterial agent can react with cell wall peptidoglycan adsorbed on bacteria on the surface of a product to cause bacterial dysfunction and finally cell wall rupture, so that the aim of killing the bacteria is fulfilled, the breeding of the bacteria is prevented, and the product achieves the antibacterial effect. Compared with shading PC which is not added with a compound silver ion and zinc ion antibacterial agent, the shading PC card base material can obviously improve the antibacterial effect of the shading PC card base material after being modified by adding the compound antibacterial agent, so that the shading PC card base material has excellent antibacterial effect.
Detailed Description
The present invention will be described in detail with reference to specific embodiments.
The invention discloses an antibacterial shading PC card base material composition which is prepared from the following raw materials in parts by weight: 75 parts of polycarbonate, 25 parts of titanium dioxide, 5 parts of a toughening agent, 0.25 part of an antioxidant, 0.3 part of a silver ion antibacterial agent and 0.4 part of a zinc ion antibacterial agent. The polycarbonate is an aromatic polycarbonate, and the average molecular weight of the aromatic polycarbonate is 2 to 3 ten thousand. The titanium dioxide is a rutile titanium white pigment. The toughening agent is ethylene methyl acrylate copolymer. The antioxidant is hindered amine antioxidant. The silver ion antibacterial agent is an inorganic silver ion antibacterial agent. The zinc ion antibacterial agent is an inorganic zinc ion antibacterial agent.
The invention also discloses a preparation method of the antibacterial shading PC card base material composition, which comprises the steps of fully mixing the polycarbonate, the titanium dioxide, the toughening agent, the antioxidant, the silver ion antibacterial agent and the zinc ion antibacterial agent, and then sequentially carrying out extrusion and material manufacturing, wherein the processing temperature during extrusion is 250-270 ℃.
examples 1 to 4, the raw materials are shown in Table 1, PC is Kostewa WB1239 with a polycarbonate content of 70% and a melt index of 3g/10min (300 ℃ C. times.1.2 kg), titanium dioxide is rutile type R-103 from DuPont, the toughening agent is DuPont AC @1330, the silver ion antibacterial agent is Japanese Zeomic DAW502, the inorganic zinc ion antibacterial agent is Guangzhou Yueisjia S + AM001-ZN, and the antioxidant is Ciba refined 168.
Table 1: the raw materials of examples 1 to 4 were in parts by weight.
| Raw materials (parts by weight) | Example 1 | Example 2 | Example 3 | Example 4 |
| Kesi wound WB1239 | 74 | 74 | 74 | 74 |
| R103 Tio2 | 18 | 18 | 18 | 18 |
| AC@1330 | 2 | 2 | 2 | 2 |
| Silver ion antibacterial agent | 0.1 | 0.2 | 0.3 | 0.6 |
| Zinc ion antibacterial agent | 0.1 | 0.2 | 0.3 | 0.6 |
| Antioxidant agent | 0.2 | 0.2 | 0.2 | 0.2 |
The raw materials are sequentially added into a high-speed mixer to be mixed for 2min at a high speed, then the fully mixed mixture is placed into a double-screw extruder with the length-diameter ratio of 40:1, the processing temperature is controlled to be 260 ℃, the rotating speed of the double-screw extruder is 390rpm, and extrusion and granulation are carried out, so that the product is obtained. The obtained product was subjected to a performance test, and the results are shown in table 2.
Table 2: product performance results for each of examples 1-4.
| Performance of | Example 1 | Example 2 | Example 3 | Example 4 |
| Notched impact KJ/m 2 | 35 | 36.5 | 36.1 | 36.2 |
| Rate of virus inactivation | >90％ | >91％ | >95％ | >99.99％ |
And (3) testing of antibacterial performance: the product is extruded to form a film product with the thickness of 0.2mm, the inactivation rate of the product to enterovirus 71 type VERO cells is more than 99.99 percent, the inactivation rate to influenza A virus H1N1(APR/8/34) MDCK cells is more than 99.99 percent and the inactivation rate to poliovirus-I vaccine strain Vero cells is more than 99.99 percent according to the test of GB 15979-2002.
Finally, it should be noted that the above-mentioned contents are only used for illustrating the technical solutions of the present invention, and not for limiting the protection scope of the present invention, and that the simple modifications or equivalent substitutions of the technical solutions of the present invention by those of ordinary skill in the art can be made without departing from the spirit and scope of the technical solutions of the present invention.
Claims (10)
1. An antibacterial shading PC card base material composition is characterized in that: the antibacterial shading PC card base material composition is composed of the following raw materials in parts by weight: 70-80 parts of polycarbonate, 18-30 parts of titanium dioxide, 2-10 parts of a toughening agent, 0.1-0.4 part of an antioxidant, 0.1-0.6 part of a silver ion antibacterial agent and 0.1-0.6 part of a zinc ion antibacterial agent.
2. The antibacterial lightproof PC card base material composition according to claim 1, wherein: the antibacterial shading PC card base material composition is composed of the following raw materials in parts by weight: 72-78 parts of polycarbonate, 20-28 parts of titanium dioxide, 3-8 parts of a toughening agent, 0.2-0.3 part of an antioxidant, 0.2-0.5 part of a silver ion antibacterial agent and 0.3-0.5 part of a zinc ion antibacterial agent.
3. The antibacterial and lightproof PC card base material composition according to claim 2, wherein: the antibacterial shading PC card base material composition is composed of the following raw materials in parts by weight: 75 parts of polycarbonate, 25 parts of titanium dioxide, 5 parts of a toughening agent, 0.25 part of an antioxidant, 0.3 part of a silver ion antibacterial agent and 0.4 part of a zinc ion antibacterial agent.
4. The antibacterial lightproof PC card base material composition according to claim 1, 2 or 3, wherein: the polycarbonate is an aromatic polycarbonate, and the average molecular weight of the aromatic polycarbonate is 2 to 3 ten thousand.
5. The antibacterial lightproof PC card base material composition according to claim 1, 2 or 3, wherein: the titanium dioxide is a rutile titanium white pigment.
6. The antibacterial lightproof PC card base material composition according to claim 1, 2 or 3, wherein: the toughening agent is an ethylene methyl acrylate copolymer.
7. The antibacterial lightproof PC card base material composition according to claim 1, 2 or 3, wherein: the antioxidant is hindered amine antioxidant.
8. The antibacterial lightproof PC card base material composition according to claim 1, 2 or 3, wherein: the silver ion antibacterial agent is an inorganic silver ion antibacterial agent.
9. The antibacterial lightproof PC card base material composition according to claim 1, 2 or 3, wherein: the zinc ion antibacterial agent is an inorganic zinc ion antibacterial agent.
10. The method for preparing an antibacterial lightproof PC card base material composition according to claim 1, 2 or 3, wherein: and fully mixing the polycarbonate, the titanium dioxide, the toughening agent, the antioxidant, the silver ion antibacterial agent and the zinc ion antibacterial agent, and then sequentially carrying out extrusion and material manufacturing steps, wherein the processing temperature during extrusion is 250-270 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010540495.2A CN111471289A (en) | 2020-06-15 | 2020-06-15 | Antibacterial shading PC card base material composition and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010540495.2A CN111471289A (en) | 2020-06-15 | 2020-06-15 | Antibacterial shading PC card base material composition and preparation method thereof |
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| CN111471289A true CN111471289A (en) | 2020-07-31 |
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| CN202010540495.2A Pending CN111471289A (en) | 2020-06-15 | 2020-06-15 | Antibacterial shading PC card base material composition and preparation method thereof |
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Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08302174A (en) * | 1995-04-28 | 1996-11-19 | Sumika A B S Ratetsukusu Kk | Antibacterial polycarbonate resin composition and production thereof |
| CN102250463A (en) * | 2011-07-11 | 2011-11-23 | 苍南县慧丰塑料有限公司 | Flame-retardant antibacterial carbonate composition for switch of fixed electric apparatus and manufacturing method thereof |
| CN102827469A (en) * | 2012-09-26 | 2012-12-19 | 上海瀚氏模具成型有限公司 | Antimicrobial polycarbonate plastic and preparation method thereof |
| CN103304978A (en) * | 2013-07-08 | 2013-09-18 | 深圳市兴盛迪新材料有限公司 | Highly heat-resistant and impact-resistant polycarbonate composition and preparation method thereof |
| CN104497533A (en) * | 2014-12-17 | 2015-04-08 | 安徽科聚新材料有限公司 | Halogen-free flame-retardant high-gloss reflective heat-conducting polycarbonate material and preparation method thereof |
| CN104497535A (en) * | 2014-12-26 | 2015-04-08 | 深圳华力兴新材料股份有限公司 | Polycarbonate composition for LDS with good thermal stability |
| CN107001603A (en) * | 2014-10-06 | 2017-08-01 | 国际商业机器公司 | water-soluble polycarbonate for medical applications |
| CN107805380A (en) * | 2017-11-30 | 2018-03-16 | 解伟伟 | A kind of formula of wear-resisting PC materials |
| CN109627717A (en) * | 2018-12-10 | 2019-04-16 | 广州飞胜高分子材料有限公司 | A kind of 3D printing composite material that shading is antibacterial, preparation method and applications |
| CN109749391A (en) * | 2018-12-27 | 2019-05-14 | 金发科技股份有限公司 | A kind of antibacterial makrolon composite material and preparation method and application |
| CN110373013A (en) * | 2019-08-08 | 2019-10-25 | 广东聚邦兴材科技有限公司 | A kind of high-strength PC |
-
2020
- 2020-06-15 CN CN202010540495.2A patent/CN111471289A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08302174A (en) * | 1995-04-28 | 1996-11-19 | Sumika A B S Ratetsukusu Kk | Antibacterial polycarbonate resin composition and production thereof |
| CN102250463A (en) * | 2011-07-11 | 2011-11-23 | 苍南县慧丰塑料有限公司 | Flame-retardant antibacterial carbonate composition for switch of fixed electric apparatus and manufacturing method thereof |
| CN102827469A (en) * | 2012-09-26 | 2012-12-19 | 上海瀚氏模具成型有限公司 | Antimicrobial polycarbonate plastic and preparation method thereof |
| CN103304978A (en) * | 2013-07-08 | 2013-09-18 | 深圳市兴盛迪新材料有限公司 | Highly heat-resistant and impact-resistant polycarbonate composition and preparation method thereof |
| CN107001603A (en) * | 2014-10-06 | 2017-08-01 | 国际商业机器公司 | water-soluble polycarbonate for medical applications |
| CN104497533A (en) * | 2014-12-17 | 2015-04-08 | 安徽科聚新材料有限公司 | Halogen-free flame-retardant high-gloss reflective heat-conducting polycarbonate material and preparation method thereof |
| CN104497535A (en) * | 2014-12-26 | 2015-04-08 | 深圳华力兴新材料股份有限公司 | Polycarbonate composition for LDS with good thermal stability |
| CN107805380A (en) * | 2017-11-30 | 2018-03-16 | 解伟伟 | A kind of formula of wear-resisting PC materials |
| CN109627717A (en) * | 2018-12-10 | 2019-04-16 | 广州飞胜高分子材料有限公司 | A kind of 3D printing composite material that shading is antibacterial, preparation method and applications |
| CN109749391A (en) * | 2018-12-27 | 2019-05-14 | 金发科技股份有限公司 | A kind of antibacterial makrolon composite material and preparation method and application |
| CN110373013A (en) * | 2019-08-08 | 2019-10-25 | 广东聚邦兴材科技有限公司 | A kind of high-strength PC |
Non-Patent Citations (1)
| Title |
|---|
| 中国材料研究学会组织编写: "《中国战略性新兴产业—新材料环境工程材料》", 30 November 2018, 中国铁道出版社 * |
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Application publication date: 20200731 |