CN106674791A - Antibacterial thin-film material for display screen - Google Patents
Antibacterial thin-film material for display screen Download PDFInfo
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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
- C08L27/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers
- C08L27/02—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L27/04—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment containing chlorine atoms
- C08L27/06—Homopolymers or copolymers of vinyl chloride
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/18—Manufacture of films or sheets
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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- C08L2203/16—Applications used for films
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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Abstract
The invention relates to an antibacterial thin-film material for a display screen. The antibacterial thin-film material is composed of the following ingredients (by weight): 14-18 parts of silicon nitride powder, 16-20 parts of pyromellitic dianhydride, 12-16 parts of chlorine alkene rubber, 10-14 parts of zinc gluconate, 16-20 parts of trioctyl trimellitate, 12-16 parts of isopropyl phenyl diphenyl phosphate, 10-14 parts of melamine cyanurate, 16-20 parts of ferrocene, 12-16 parts of imidazoline, 10-14 parts of sodium humate, 16-20 parts of EDTMPA, 12-16 parts of isothiazolinone, 12-16 parts of PVC resin powder, 10-14 parts of dimethyl fumarate, 16-20 parts of IPBC, 12-16 parts of chitin and 10-14 parts of tributyl phosphate. The product is applicable to the field of display screen films. Product performance is improved.
Description
Technical field
The present invention relates to a kind of display screen antibacterial film material, belongs to display screen thin-film material technical field.
Background technology
Display (display) is also generally referred to as monitor.Display is belonging to the I/O equipment of computer, that is, be input into defeated
Go out equipment.It is that a kind of certain e-file is shown on screen by specific transmission equipment is re-reflected into the aobvious of human eye
Show instrument.In order to protect the using effect of display screen, generally require using suitable thin film, to improve its performance.
The content of the invention
It is an object of the invention to provide a kind of display screen antibacterial film material, thin so that display screen antibacterial is better achieved
The function of membrane material.
To achieve these goals, technical scheme is as follows.
A kind of display screen antibacterial film material, is made up of the component of following mass fraction：14~18 parts of alpha-silicon nitride powders,
16~20 parts of PMDA, 12~16 parts of chlorine alkene rubber, 10~14 parts of zinc gluconate, trioctyl trimellitate (TOTM) 16~20
Part, 12~16 parts of IPPP, 10~14 parts of melamine cyanurate, 16~20 parts of ferrocene, imidazoline 12
~16 parts, 10~14 parts of sodium humate, 16~20 parts of ethylene diamine tetra methylene phosphonic acid, 12~16 parts of isothiazolone, PVC resin powder
12~16 parts, 10~14 parts of dimethyl fumarate, 16~20 parts of iodo propinyl ammonia butyl formate, 12~16 parts of chitin, phosphorus
10~14 parts of sour tributyl.
Further, above-mentioned display screen antibacterial film material, is made up of the component of following mass fraction：Alpha-silicon nitride powders 14
Part, 16 parts of pyromellitic acid anhydride, 12 parts of chlorine alkene rubber, 10 parts of zinc gluconate, 16 parts of trioctyl trimellitate (TOTM), tricresyl phosphate are different
12 parts of propyl group phenyl ester, 10 parts of melamine cyanurate, 16 parts of ferrocene, 12 parts of imidazoline, 10 parts of sodium humate, ethylenediamine tetraacetic
16 parts of methylenephosphonic acid, 12 parts of isothiazolone, 12 parts of PVC resin powder, 10 parts of dimethyl fumarate, iodo propinyl ammonia formic acid fourth
16 parts of ester, 12 parts of chitin, 10 parts of tributyl phosphate.
Further, above-mentioned display screen antibacterial film material, is made up of the component of following mass fraction：Alpha-silicon nitride powders 16
Part, 18 parts of pyromellitic acid anhydride, 14 parts of chlorine alkene rubber, 12 parts of zinc gluconate, 18 parts of trioctyl trimellitate (TOTM), tricresyl phosphate are different
14 parts of propyl group phenyl ester, 12 parts of melamine cyanurate, 18 parts of ferrocene, 14 parts of imidazoline, 12 parts of sodium humate, ethylenediamine tetraacetic
18 parts of methylenephosphonic acid, 14 parts of isothiazolone, 14 parts of PVC resin powder, 12 parts of dimethyl fumarate, iodo propinyl ammonia formic acid fourth
18 parts of ester, 14 parts of chitin, 12 parts of tributyl phosphate.
Further, above-mentioned display screen antibacterial film material, is made up of the component of following mass fraction：Alpha-silicon nitride powders 18
Part, 20 parts of pyromellitic acid anhydride, 16 parts of chlorine alkene rubber, 14 parts of zinc gluconate, 20 parts of trioctyl trimellitate (TOTM), tricresyl phosphate are different
16 parts of propyl group phenyl ester, 14 parts of melamine cyanurate, 20 parts of ferrocene, 16 parts of imidazoline, 14 parts of sodium humate, ethylenediamine tetraacetic
20 parts of methylenephosphonic acid, 16 parts of isothiazolone, 16 parts of PVC resin powder, 14 parts of dimethyl fumarate, iodo propinyl ammonia formic acid fourth
20 parts of ester, 16 parts of chitin, 14 parts of tributyl phosphate.
Further, the alpha-silicon nitride powders are made up of the powder body of three kinds of particle diameter mesh numbers, and its particle diameter mesh number is respectively 30~
50 mesh, 50~80 mesh, 80~100 mesh, the mixing quality ratio of above-mentioned three kinds of powder body is 3~7:4~8:1.
Further, the PVC resin powder is made up of the powder body of three kinds of particle diameter mesh numbers, and its particle diameter mesh number is respectively 30~50
Mesh, 50~80 mesh, 80~100 mesh, the mixing quality ratio of above-mentioned three kinds of powder body is 3~8:2~8:1.
Further, the viscosity of the IPPP is 12000~14000mpa.s at 25 DEG C.
Further, the chitin is made up of the powder body of three kinds of particle diameter mesh numbers, its particle diameter mesh number be respectively 20~50 mesh,
50~70 mesh, 70~90 mesh, the mixing quality ratio of above-mentioned three kinds of powder body is 2~4:3~5:1.
Further, the viscosity of the H components is 8000~10000mpa.s at 25 DEG C.
Further, above-mentioned display screen antibacterial film material preparation method step is as follows：
(1) by the alpha-silicon nitride powders of the mass fraction, pyromellitic acid anhydride, chlorine alkene rubber, zinc gluconate, inclined benzene
Three sour three monooctyl esters, IPPP, melamine cyanurate, ethylene diamine tetra methylene phosphonic acid, isothiazolone, PVC
Resin-oatmeal, dimethyl fumarate, tributyl phosphate are mixed, and ultrasound is disperseed at a high speed, and ultrasonic frequency is 20~40KHz, point
Scattered 5000~5400r/min of speed or so, jitter time is 30~60min；
(2) ferrocene, imidazoline, the sodium humate of the mass fraction, ultrasound is added to disperse at a high speed, ultrasonic frequency is
20~35KHz, 4800~5200r/min of rate of dispersion or so, jitter time is 30~50min；
(3) iodo propinyl ammonia butyl formate, the chitin of the mass fraction, ultrasound is added to disperse at a high speed, ultrasound wave
Frequency is 20~30KHz, and 4600~4800r/min of rate of dispersion or so, jitter time is 20~40min；Make after mix homogeneously
Obtain this product.
The beneficial effect of the invention is：This display screen antibacterial film material process of preparing is simple, prepared product
Product have more superior fire-retardant, acid and alkali-resistance, water-proof antibiotic performance, and this product is adapted to be used in display screen film applications, improves
Properties of product.
Specific embodiment
The specific embodiment of the present invention is described with reference to embodiment, to be better understood from the present invention.
Embodiment 1
Display screen antibacterial film material in the present embodiment, is made up of the component of following mass fraction：Alpha-silicon nitride powders 14
Part, 16 parts of pyromellitic acid anhydride, 12 parts of chlorine alkene rubber, 10 parts of zinc gluconate, 16 parts of trioctyl trimellitate (TOTM), tricresyl phosphate are different
12 parts of propyl group phenyl ester, 10 parts of melamine cyanurate, 16 parts of ferrocene, 12 parts of imidazoline, 10 parts of sodium humate, ethylenediamine tetraacetic
16 parts of methylenephosphonic acid, 12 parts of isothiazolone, 12 parts of PVC resin powder, 10 parts of dimethyl fumarate, iodo propinyl ammonia formic acid fourth
16 parts of ester, 12 parts of chitin, 10 parts of tributyl phosphate.
The alpha-silicon nitride powders are made up of the powder body of three kinds of particle diameter mesh numbers, its particle diameter mesh number be respectively 30~50 mesh, 50~
80 mesh, 80~100 mesh, the mixing quality ratio of above-mentioned three kinds of powder body is 3:4:1.
The PVC resin powder is made up of the powder body of three kinds of particle diameter mesh numbers, its particle diameter mesh number be respectively 30~50 mesh, 50~80
Mesh, 80~100 mesh, the mixing quality ratio of above-mentioned three kinds of powder body is 3:2:1.
The viscosity of the IPPP is 12000mpa.s at 25 DEG C.
The chitin is made up of the powder body of three kinds of particle diameter mesh numbers, its particle diameter mesh number be respectively 20~50 mesh, 50~70 mesh,
70~90 mesh, the mixing quality ratio of above-mentioned three kinds of powder body is 2:3:1.
The viscosity of the H components is 8000mpa.s at 25 DEG C.
Above-mentioned display screen antibacterial film material preparation method step is as follows：
(1) by the alpha-silicon nitride powders of the mass fraction, pyromellitic acid anhydride, chlorine alkene rubber, zinc gluconate, inclined benzene
Three sour three monooctyl esters, IPPP, melamine cyanurate, ethylene diamine tetra methylene phosphonic acid, isothiazolone, PVC
Resin-oatmeal, dimethyl fumarate, tributyl phosphate are mixed, and ultrasound is disperseed at a high speed, and ultrasonic frequency is 20kHz, dispersion speed
Degree 5400r/min or so, jitter time is 60min；
(2) ferrocene, imidazoline, the sodium humate of the mass fraction, ultrasound is added to disperse at a high speed, ultrasonic frequency is
20kHz, rate of dispersion 5200r/min or so, jitter time is 50min；
(3) iodo propinyl ammonia butyl formate, the chitin of the mass fraction, ultrasound is added to disperse at a high speed, ultrasound wave
Frequency is 20kHz, rate of dispersion 4800r/min or so, and jitter time is 40min；This product is obtained after mix homogeneously.
Embodiment 2
Display screen antibacterial film material in the present embodiment, is made up of the component of following mass fraction：Alpha-silicon nitride powders 16
Part, 18 parts of pyromellitic acid anhydride, 14 parts of chlorine alkene rubber, 12 parts of zinc gluconate, 18 parts of trioctyl trimellitate (TOTM), tricresyl phosphate are different
14 parts of propyl group phenyl ester, 12 parts of melamine cyanurate, 18 parts of ferrocene, 14 parts of imidazoline, 12 parts of sodium humate, ethylenediamine tetraacetic
18 parts of methylenephosphonic acid, 14 parts of isothiazolone, 14 parts of PVC resin powder, 12 parts of dimethyl fumarate, iodo propinyl ammonia formic acid fourth
18 parts of ester, 14 parts of chitin, 12 parts of tributyl phosphate.
The alpha-silicon nitride powders are made up of the powder body of three kinds of particle diameter mesh numbers, its particle diameter mesh number be respectively 30~50 mesh, 50~
80 mesh, 80~100 mesh, the mixing quality ratio of above-mentioned three kinds of powder body is 5:6:1.
The PVC resin powder is made up of the powder body of three kinds of particle diameter mesh numbers, its particle diameter mesh number be respectively 30~50 mesh, 50~80
Mesh, 80~100 mesh, the mixing quality ratio of above-mentioned three kinds of powder body is 5:5:1.
The viscosity of the IPPP is 13000mpa.s at 25 DEG C.
The chitin is made up of the powder body of three kinds of particle diameter mesh numbers, its particle diameter mesh number be respectively 20~50 mesh, 50~70 mesh,
70~90 mesh, the mixing quality ratio of above-mentioned three kinds of powder body is 3:4:1.
The viscosity of the H components is 9000mpa.s at 25 DEG C.
Above-mentioned display screen antibacterial film material preparation method step is as follows：
(1) by the alpha-silicon nitride powders of the mass fraction, pyromellitic acid anhydride, chlorine alkene rubber, zinc gluconate, inclined benzene
Three sour three monooctyl esters, IPPP, melamine cyanurate, ethylene diamine tetra methylene phosphonic acid, isothiazolone, PVC
Resin-oatmeal, dimethyl fumarate, tributyl phosphate are mixed, and ultrasound is disperseed at a high speed, and ultrasonic frequency is 30kHz, dispersion speed
Degree 5200r/min or so, jitter time is 45min；
(2) ferrocene, imidazoline, the sodium humate of the mass fraction, ultrasound is added to disperse at a high speed, ultrasonic frequency is
27kHz, rate of dispersion 5000r/min or so, jitter time is 40min；
(3) iodo propinyl ammonia butyl formate, the chitin of the mass fraction, ultrasound is added to disperse at a high speed, ultrasound wave
Frequency is 25kHz, rate of dispersion 4700r/min or so, and jitter time is 30min；This product is obtained after mix homogeneously.
Embodiment 3
Display screen antibacterial film material in the present embodiment, is made up of the component of following mass fraction：Alpha-silicon nitride powders 18
Part, 20 parts of pyromellitic acid anhydride, 16 parts of chlorine alkene rubber, 14 parts of zinc gluconate, 20 parts of trioctyl trimellitate (TOTM), tricresyl phosphate are different
16 parts of propyl group phenyl ester, 14 parts of melamine cyanurate, 20 parts of ferrocene, 16 parts of imidazoline, 14 parts of sodium humate, ethylenediamine tetraacetic
20 parts of methylenephosphonic acid, 16 parts of isothiazolone, 16 parts of PVC resin powder, 14 parts of dimethyl fumarate, iodo propinyl ammonia formic acid fourth
20 parts of ester, 16 parts of chitin, 14 parts of tributyl phosphate.
The alpha-silicon nitride powders are made up of the powder body of three kinds of particle diameter mesh numbers, its particle diameter mesh number be respectively 30~50 mesh, 50~
80 mesh, 80~100 mesh, the mixing quality ratio of above-mentioned three kinds of powder body is 7:8:1.
The PVC resin powder is made up of the powder body of three kinds of particle diameter mesh numbers, its particle diameter mesh number be respectively 30~50 mesh, 50~80
Mesh, 80~100 mesh, the mixing quality ratio of above-mentioned three kinds of powder body is 8:8:1.
The viscosity of the IPPP is 14000mpa.s at 25 DEG C.
The chitin is made up of the powder body of three kinds of particle diameter mesh numbers, its particle diameter mesh number be respectively 20~50 mesh, 50~70 mesh,
70~90 mesh, the mixing quality ratio of above-mentioned three kinds of powder body is 4:5:1.
The viscosity of the H components is 10000mpa.s at 25 DEG C.
Above-mentioned display screen antibacterial film material preparation method step is as follows：
(1) by the alpha-silicon nitride powders of the mass fraction, pyromellitic acid anhydride, chlorine alkene rubber, zinc gluconate, inclined benzene
Three sour three monooctyl esters, IPPP, melamine cyanurate, ethylene diamine tetra methylene phosphonic acid, isothiazolone, PVC
Resin-oatmeal, dimethyl fumarate, tributyl phosphate are mixed, and ultrasound is disperseed at a high speed, and ultrasonic frequency is 40kHz, dispersion speed
Degree 5000r/min, jitter time is 30min；
(2) ferrocene, imidazoline, the sodium humate of the mass fraction, ultrasound is added to disperse at a high speed, ultrasonic frequency is
35kHz, rate of dispersion 4800r/min, jitter time is 30min；
(3) iodo propinyl ammonia butyl formate, the chitin of the mass fraction, ultrasound is added to disperse at a high speed, ultrasound wave
Frequency is 30kHz, rate of dispersion 4600r/min or so, and jitter time is 20min；This product is obtained after mix homogeneously.
Performance measurement is carried out for the product in embodiment 1, embodiment 2 and embodiment 3 and certain commercially available prod, it is measured
Data are as shown in table 1.Fire protection flame retarding level estimate adopts UL94 standards.
The performance test results of table 1
It can be seen that, product of the present invention has preferable corrosion-resistant, fire protection flame retarding, waterproof, anti-microbial property.
The above is the preferred embodiment of the present invention, it is noted that for those skilled in the art
For, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications are also considered as
Protection scope of the present invention.
Claims (10)
1. a kind of display screen antibacterial film material, it is characterised in that：It is made up of the component of following mass fraction：Alpha-silicon nitride powders 14
~18 parts, 16~20 parts of pyromellitic acid anhydride, 12~16 parts of chlorine alkene rubber, 10~14 parts of zinc gluconate, tri trimellitate
16~20 parts of monooctyl ester, 12~16 parts of IPPP, 10~14 parts of melamine cyanurate, ferrocene 16~20
Part, 12~16 parts of imidazoline, 10~14 parts of sodium humate, 16~20 parts of ethylene diamine tetra methylene phosphonic acid, isothiazolone 12~16
Part, 12~16 parts of PVC resin powder, 10~14 parts of dimethyl fumarate, 16~20 parts of iodo propinyl ammonia butyl formate, chitin
12~16 parts, 10~14 parts of tributyl phosphate.
2. display screen antibacterial film material according to claim 1, it is characterised in that：The display screen antibacterial film material
It is made up of the component of following mass fraction：14 parts of alpha-silicon nitride powders, 16 parts of pyromellitic acid anhydride, 12 parts of chlorine alkene rubber, Fructus Vitis viniferae
It is 10 parts of saccharic acid zinc, 16 parts of trioctyl trimellitate (TOTM), 12 parts of IPPP, 10 parts of melamine cyanurate, two luxuriant
16 parts of ferrum, 12 parts of imidazoline, 10 parts of sodium humate, 16 parts of ethylene diamine tetra methylene phosphonic acid, 12 parts of isothiazolone, PVC resin powder
12 parts, 10 parts of dimethyl fumarate, 16 parts of iodo propinyl ammonia butyl formate, 12 parts of chitin, 10 parts of tributyl phosphate.
3. display screen antibacterial film material according to claim 1, it is characterised in that：The display screen antibacterial film material
It is made up of the component of following mass fraction：16 parts of alpha-silicon nitride powders, 18 parts of pyromellitic acid anhydride, 14 parts of chlorine alkene rubber, Fructus Vitis viniferae
It is 12 parts of saccharic acid zinc, 18 parts of trioctyl trimellitate (TOTM), 14 parts of IPPP, 12 parts of melamine cyanurate, two luxuriant
18 parts of ferrum, 14 parts of imidazoline, 12 parts of sodium humate, 18 parts of ethylene diamine tetra methylene phosphonic acid, 14 parts of isothiazolone, PVC resin powder
14 parts, 12 parts or so of dimethyl fumarate, 18 parts of iodo propinyl ammonia butyl formate, 14 parts of chitin, 12 parts of tributyl phosphate.
4. display screen antibacterial film material according to claim 1, it is characterised in that：The display screen antibacterial film material
It is made up of the component of following mass fraction：18 parts of alpha-silicon nitride powders, 20 parts of pyromellitic acid anhydride, 16 parts of chlorine alkene rubber, Fructus Vitis viniferae
14 parts of saccharic acid zinc, about 20 parts of trioctyl trimellitate (TOTM), 16 parts of IPPP, 14 parts of melamine cyanurate, two
20 parts of luxuriant ferrum, 16 parts of imidazoline, 14 parts of sodium humate, 20 parts of ethylene diamine tetra methylene phosphonic acid, 16 parts of isothiazolone, polyvinyl chloride resin
16 parts of powder, 14 parts of dimethyl fumarate, 20 parts of iodo propinyl ammonia butyl formate, 16 parts of chitin, 14 parts of tributyl phosphate.
5. display screen antibacterial film material according to claim 1, it is characterised in that：The alpha-silicon nitride powders are by three kinds of grains
The powder body composition of footpath mesh number, its particle diameter mesh number is respectively 30~50 mesh, 50~80 mesh, 80~100 mesh, above-mentioned three kinds of powder body it is mixed
It is 3~7 to close mass ratio:4~8:1.
6. display screen antibacterial film material according to claim 1, it is characterised in that：The PVC resin powder is by three kinds of grains
The powder body composition of footpath mesh number, its particle diameter mesh number is respectively 30~50 mesh, 50~80 mesh, 80~100 mesh, above-mentioned three kinds of powder body it is mixed
It is 3~8 to close mass ratio:2~8:1.
7. display screen antibacterial film material according to claim 1, it is characterised in that：The IPPP
Viscosity is 12000~14000mpa.s at 25 DEG C.
8. display screen antibacterial film material according to claim 1, it is characterised in that：The chitin is by three kinds of particle diameter mesh
Several powder body compositions, its particle diameter mesh number is respectively 20~50 mesh, 50~70 mesh, 70~90 mesh, the mixing matter of above-mentioned three kinds of powder body
Amount ratio is 2~4:3~5:1.
9. display screen antibacterial film material according to claim 1, it is characterised in that：The viscosity of the H components is at 25 DEG C
For 8000~10000mpa.s.
10. display screen antibacterial film material according to claim 1, it is characterised in that：The display screen antibacterial film material
Preparation method for material step is as follows：
(1) by the alpha-silicon nitride powders of the mass fraction, pyromellitic acid anhydride, chlorine alkene rubber, zinc gluconate, trimellitic acid
Three monooctyl esters, IPPP, melamine cyanurate, ethylene diamine tetra methylene phosphonic acid, isothiazolone, polyvinyl chloride resin
Powder, dimethyl fumarate, tributyl phosphate are mixed, and ultrasound is disperseed at a high speed, and ultrasonic frequency is 20~40KHz, disperses speed
5000~5400r/min of degree, jitter time is 30~60min；
(2) ferrocene, imidazoline, the sodium humate of the mass fraction, ultrasound is added to disperse at a high speed, ultrasonic frequency is 20~
35KHz, 4800~5200r/min of rate of dispersion, jitter time is 30~50min；
(3) iodo propinyl ammonia butyl formate, the chitin of the mass fraction, ultrasound is added to disperse at a high speed, ultrasonic frequency
For 20~30KHz, 4600~4800r/min of rate of dispersion, jitter time is 20~40min；This product is obtained after mix homogeneously.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108665973A (en) * | 2018-05-31 | 2018-10-16 | 浙江再生方医药科技有限公司 | A kind of shield screen intelligent Chinese medicine robot |
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| CN104292604A (en) * | 2014-09-30 | 2015-01-21 | 青岛高远光电测控技术有限公司 | Improved high-elasticity plastic film |
| CN104479255A (en) * | 2014-12-30 | 2015-04-01 | 国家电网公司 | Electric ammeter shell material |
| CN104693646A (en) * | 2015-03-16 | 2015-06-10 | 南京工业大学 | Transparent plasticized PVC functional film and preparation method thereof |
| CN105076228A (en) * | 2015-09-07 | 2015-11-25 | 王璐 | Bactericidal, mould-proof and drying agent for calligraphy and painting artworks |
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| CN108665973A (en) * | 2018-05-31 | 2018-10-16 | 浙江再生方医药科技有限公司 | A kind of shield screen intelligent Chinese medicine robot |
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