CN104151649B - A kind of high strength composite and preparation method thereof - Google Patents
A kind of high strength composite and preparation method thereof Download PDFInfo
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- CN104151649B CN104151649B CN201410411049.6A CN201410411049A CN104151649B CN 104151649 B CN104151649 B CN 104151649B CN 201410411049 A CN201410411049 A CN 201410411049A CN 104151649 B CN104151649 B CN 104151649B
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Abstract
The invention belongs to field of functional materials, relate to a kind of high strength composite and preparation method thereof, in this material, the weight percent of each composition is: silicon-dioxide 3-6%, zinc oxide 4-6%, stearic acid 2-5%, sulphur 2-5%, acetal plastic marble mixture 15-20%, silane coupling agent 1-3%, all the other styrene-butadiene rubber(SBR); In preparation process of the present invention, a large amount of use your material rare, institute's raw materials cost of getting reduces, and adopt waste material to do raw material, preparation technology is easy, and process is simple; The material that the present invention obtains can be applied to the fields such as transport, building, military affairs, have shockproof, relax the effect such as impact, thermal insulation, sound insulation.
Description
Technical field
The invention belongs to field of functional materials, relate to a kind of high strength composite and preparation method thereof.
Background technology
cN201010142415.4number disclose a kind of low-lag microcellular rubber material for oscillation reduction of high-speed railway fastener and preparation method thereof.This material is made up of following mass fraction composition: base rubber 100 parts, nanometer reinforcing filler 40-80 part, surface-modifying agent 8-16 part, softening agent 5-15 part, anti-aging agent 1-2 part, chemical foaming agent 2-4 part, vulcanizing agent, vulcanization aid 10-20 part; Preparation method: by EPDM, nanometer reinforcing filler and surface-modifying agent banburying under high temperature high shear condition, then chemical foaming agent, anti-aging agent, softening agent, vulcanizing agent and vulcanization aid is added, at room temperature conventional banburying, at 120 DEG C of prevulcanized 15min, sulfide stress 10MPa, then foaming and sulfuration, temperature, time, pressure are respectively 170 DEG C, 20min, 10MPa, obtain micropore composite material, put into 150 DEG C of baking oven postcure 2hr and obtain product.The weak point that this material exists is that mechanical property is lower, and tensile strength is lower.
Summary of the invention
Object of the present invention is exactly for above-mentioned technological deficiency, provides a kind of high strength composite, has high tensile strength;
Another object of the present invention is to provide a kind of high strength composite preparation method, and this preparation method's technique is simple, and production cost is low, is suitable for suitability for industrialized production.
Technical solution of the present invention is as follows:
A kind of high strength composite, in this material, the weight percent of each composition is: silicon-dioxide 3-6%, zinc oxide 4-6%, stearic acid 2-5%, sulphur 2-5%, acetal plastic marble mixture 15-20%, silane coupling agent 1-3%, all the other styrene-butadiene rubber(SBR);
Described acetal plastic marble mixture is mixed by weight 10:1-3 by acetal plastic and marble, and wherein in marble, the weight percent of each composition is: calcium carbonate 92-98%, and all the other are silicon-dioxide.
The employing SBR – 2305 of described styrene-butadiene rubber(SBR), silane coupling agent adopts KH – 590.
The particle diameter of described silicon-dioxide and zinc oxide is 80-100 micron.
The preparation method of described high strength composite, the method comprises the following steps:
(1) marmorean preparation
Get the marble of above-mentioned composition, grind to form the marble powder of particle diameter 10-20 micron, for subsequent use;
(2) preparation of acetal plastic
Acetal plastic is heated to the 180-185 DEG C of acetal plastic obtained in molten state, for subsequent use;
(3) acetal plastic marble mixture is prepared
By weight step (1) gained marble powder is joined in the acetal plastic of step (2) gained molten state, and stir, then naturally cool to room temperature and obtain acetal plastic and marble mixture; Then acetal plastic marble mixture is put into the liquid nitrogen upper space of-170 ~-180 DEG C of liquid nitrogen bath, then be incubated 15-20 minute, then take out fragmentation, the powder of the acetal plastic marble mixture after fragmentation, particle diameter is 80-100 micron;
(4) composite granule material is prepared
Get silicon-dioxide by above-mentioned weight ratio, zinc oxide and acetal plastic marble mixture are uniformly mixed to form mixed powder; Get silane coupling agent by weight and alcohol is mixed to form mixed solution, the weight ratio of silane coupling agent and alcohol is 1:8-10; Mixed with mixed solution uniform stirring by mixed powder, then put into drying installation maintenance 0.5-1h, removing alcohol, drying temperature is 40-45 DEG C; Continue to be warmed up to 90-95 DEG C afterwards and keep 20-40 minute, obtain composite granule material;
(5) high strength composite is prepared
Plasticate by weight styrene-butadiene rubber(SBR) is placed in mill, the time of plasticating is 15-20 minute, plasticating temperature is 60-80 DEG C, backward styrene-butadiene rubber(SBR) in add the composite granule material of above-mentioned stearic acid, sulphur and step (4), mixingly through 15-20 minute styrene-butadiene rubber(SBR) is mixed with composite granule material obtain rubber unvulcanizate, melting temperature is 70-85 DEG C, the rubber unvulcanizate mixed is carried out sulfuration on vulcanizer, high strength composite is obtained after curing temperature 160-180 DEG C, sulfuration 20-40 minute.
beneficial effect of the present invention:
High strength composite of the present invention, wherein styrene-butadiene rubber(SBR) forms matrix, sulphur plays sulfuration, and stearic acid plays vulcanization leveller, also can be used as softening agent and tenderizer, silane coupling agent rises and acetal plastic marble mixture ligation, zinc oxide plays sulfuration promoter action, and silicon-dioxide is the filler of styrene-butadiene rubber(SBR), and acetal plastic marble mixture is tough and strong molectron, not only can not destroy the ductility of material, and add the intensity of material.Polyoxymethylene intensity is high, and has good fatigability and dimensional stability; Marble is indeformable, uniform texture, coefficient of linear expansion are minimum, good rigidly, hardness are high, wear resistance is strong, temperature deformation is little, is the desirable enhancement component of macromolecular material.
In preparation process of the present invention, a large amount of use your material rare, institute's raw materials cost of getting reduces, and adopt waste material to do raw material, preparation technology is easy, and process is simple; The material that the present invention obtains can be applied to the fields such as transport, building, military affairs, have shockproof, relax the effect such as impact, thermal insulation, sound insulation.
Accompanying drawing explanation
Fig. 1 is the organization chart of high strength composite prepared by the embodiment of the present invention one.
As seen from the figure, homogeneous microstructure is fine and close.
Embodiment
Below in conjunction with embodiment, the invention will be further described: in marble, the weight percent of each composition is: calcium carbonate 92-98%, and all the other are silicon-dioxide.The employing SBR – 2305 of styrene-butadiene rubber(SBR), silane coupling agent adopts KH – 590.
embodiment one:
High strength composite of the present invention, its preparation method is as follows:
(1) marmorean preparation
Get marble, grind to form the marble powder of particle diameter 10-20 micron, for subsequent use;
(2) preparation of acetal plastic
Acetal plastic is heated to 180 DEG C of acetal plastics obtained in molten state, for subsequent use;
(3) acetal plastic marble mixture is prepared
By weight 1:10, step (1) gained marble powder is joined in the acetal plastic of step (2) gained molten state, and stir, then naturally cool to room temperature and obtain acetal plastic marble mixture; Then acetal plastic marble mixture is put into the liquid nitrogen upper space of liquid nitrogen bath ,-170 DEG C of insulations 15 minutes, then take out fragmentation, the diameter of particle of the acetal plastic marble mixture after fragmentation was 80-100 micron;
(4) composite granule material is prepared
Get silicon-dioxide 3%, zinc oxide 4%, acetal plastic marble mixture 15% mixes formation mixed powder; Get silane coupling agent 1% and be mixed to form mixed solution with alcohol, the weight ratio of silane coupling agent and alcohol is 1:8; Mixed with mixed solution uniform stirring by mixed powder, then put into drying installation maintenance 0.5h, removing alcohol, drying temperature is 40 DEG C, dry 5 minutes; Continue to be warmed up to 90 DEG C afterwards to keep 20 minutes, obtain composite granule material;
(5) high strength composite is prepared
Styrene-butadiene rubber(SBR) is placed in mill plasticate, the time of plasticating is 15 minutes, plastics temperature is 60 DEG C, backward styrene-butadiene rubber(SBR) in add composite granule material, stearic acid 2% and sulphur 2%, mixingly through 15 minutes styrene-butadiene rubber(SBR) is mixed with composite granule material obtain rubber unvulcanizate, melting temperature is 70 DEG C, and the rubber unvulcanizate mixed is carried out sulfuration on vulcanizer, curing temperature 160 DEG C, sulfuration obtained high strength composite after 20 minutes.
embodiment two:
High strength composite of the present invention, its preparation method is as follows:
(1) marmorean preparation
Get marble, grind to form the marble powder of particle diameter 10-20 micron, for subsequent use;
(2) preparation of acetal plastic
Acetal plastic is heated to 183 DEG C of acetal plastics obtained in molten state, for subsequent use;
(3) acetal plastic marble mixture is prepared
By weight 2:10, step (1) gained marble powder is joined in the acetal plastic of step (2) gained molten state, and stir, then naturally cool to room temperature and obtain acetal plastic marble mixture; Then acetal plastic marble mixture is put into the liquid nitrogen upper space of liquid nitrogen bath ,-175 DEG C of insulations 17 minutes, then take out fragmentation, the diameter of particle of the acetal plastic marble mixture after fragmentation was 80-100 micron;
(4) composite granule material is prepared
Get silicon-dioxide 5%, zinc oxide 5%, acetal plastic marble mixture 17% mixes formation mixed powder; Get silane coupling agent 2% and be mixed to form mixed solution with alcohol, the weight ratio of silane coupling agent and alcohol is 1:9; Mixed with mixed solution uniform stirring by mixed powder, then put into drying installation maintenance 0.7h, removing alcohol, drying temperature is 43 DEG C, dry 8 minutes; Continue to be warmed up to 93 DEG C afterwards to keep 30 minutes, obtain composite granule material;
(5) high strength composite is prepared
Styrene-butadiene rubber(SBR) is placed in mill plasticate, the time of plasticating is 18 minutes, plastics temperature is 70 DEG C, backward styrene-butadiene rubber(SBR) in add composite granule material, stearic acid 4% and sulphur 4%, mixingly through 18 minutes styrene-butadiene rubber(SBR) is mixed with composite granule material obtain rubber unvulcanizate, melting temperature is 80 DEG C, and the rubber unvulcanizate mixed is carried out sulfuration on vulcanizer, curing temperature 170 DEG C, sulfuration obtained high strength composite after 30 minutes.
embodiment three:
High strength composite of the present invention, its preparation method is as follows:
(1) marmorean preparation
Get marble, grind to form the marble powder of particle diameter 10-20 micron, for subsequent use;
(2) preparation of acetal plastic
Acetal plastic is heated to 185 DEG C of acetal plastics obtained in molten state, for subsequent use;
(3) acetal plastic marble mixture is prepared
By weight 3:10, step (1) gained marble powder is joined in the acetal plastic of step (2) gained molten state, and stir, then naturally cool to room temperature and obtain acetal plastic marble mixture; Then acetal plastic marble mixture is put into the liquid nitrogen upper space of liquid nitrogen bath ,-180 DEG C of insulations 20 minutes, then take out fragmentation, the diameter of particle of the acetal plastic marble mixture after fragmentation was 80-100 micron;
(4) composite granule material is prepared
Get silicon-dioxide 6%, zinc oxide 6%, acetal plastic marble mixture 20% mixes formation mixed powder; Get silane coupling agent 3% and be mixed to form mixed solution with alcohol, the weight ratio of silane coupling agent and alcohol is 1:10; Mixed with mixed solution uniform stirring by mixed powder, then put into drying installation maintenance 1h, removing alcohol, drying temperature is 45 DEG C, dry 10 minutes; Continue to be warmed up to 95 DEG C afterwards to keep 40 minutes, obtain composite granule material;
(5) high strength composite is prepared
Styrene-butadiene rubber(SBR) is placed in mill plasticate, the time of plasticating is 20 minutes, plastics temperature is 80 DEG C, backward styrene-butadiene rubber(SBR) in add composite granule material, stearic acid 5% and sulphur 5%, mixingly through 20 minutes styrene-butadiene rubber(SBR) is mixed with composite granule material obtain rubber unvulcanizate, melting temperature is 85 DEG C, and the rubber unvulcanizate mixed is carried out sulfuration on vulcanizer, curing temperature 180 DEG C, sulfuration obtained high strength composite after 40 minutes.
embodiment four: (step (4) and (5) middle proportioning components be not within the scope of design proportion of the present invention)
High strength composite of the present invention, its preparation method is as follows:
Step (1)-(3) are with step (1)-(3) in embodiment three.
(4) composite granule material is prepared
Get silicon-dioxide 2%, zinc oxide 2%, acetal plastic marble mixture 13% mixes formation mixed powder; Get silane coupling agent 0.5% and be mixed to form mixed solution with alcohol, the weight ratio of silane coupling agent and alcohol is 1:6; Mixed with mixed solution uniform stirring by mixed powder, then put into drying installation maintenance 0.3h, removing alcohol, drying temperature is 35 DEG C, dry 3 minutes; Continue to be warmed up to 80 DEG C afterwards to keep 15 minutes, obtain composite granule material;
(5) high strength composite is prepared
Styrene-butadiene rubber(SBR) is placed in mill plasticate, the time of plasticating is 10 minutes, plastics temperature is 50 DEG C, backward styrene-butadiene rubber(SBR) in add composite granule material, stearic acid 1% and sulphur 1%, mixingly through 10 minutes styrene-butadiene rubber(SBR) is mixed with composite granule material obtain rubber unvulcanizate, melting temperature is 60 DEG C, and the rubber unvulcanizate mixed is carried out sulfuration on vulcanizer, curing temperature 140 DEG C, sulfuration obtained high strength composite after 10 minutes.
embodiment five: (step (4) and (5) middle proportioning components be not within the scope of design proportion of the present invention)
High strength composite of the present invention, its preparation method is as follows:
Step (1)-(3) are with step (1)-(3) in embodiment three.
(4) composite granule material is prepared
Get silicon-dioxide 8%, zinc oxide 8%, acetal plastic marble mixture 27% mixes formation mixed powder; Get silane coupling agent 5% and be mixed to form mixed solution with alcohol, the weight ratio of silane coupling agent and alcohol is 1:12; Mixed with mixed solution uniform stirring by mixed powder, then put into drying installation maintenance 2h, removing alcohol, drying temperature is 50 DEG C, dry 15 minutes; Continue to be warmed up to 110 DEG C afterwards to keep 50 minutes, obtain composite granule material;
(5) high strength composite is prepared
Styrene-butadiene rubber(SBR) is placed in mill plasticate, the time of plasticating is 25 minutes, plastics temperature is 90 DEG C, backward styrene-butadiene rubber(SBR) in add composite granule material, stearic acid 7% and sulphur 7%, mixingly through 25 minutes styrene-butadiene rubber(SBR) is mixed with composite granule material obtain rubber unvulcanizate, melting temperature is 95 DEG C, and the rubber unvulcanizate mixed is carried out sulfuration on vulcanizer, curing temperature 200 DEG C, sulfuration obtained high strength composite after 60 minutes.
table one
As can be seen from the above table, embodiment one to three, composition proportion is within the scope of design proportion of the present invention, and compared to contrast material and embodiment four and five, the elongation of the material prepared and tensile strength are obviously higher.The present invention adopts styrene-butadiene rubber(SBR) to be matrix, and it is crossed additive ratio at most and reduces, and the function of various additive reduces; Very little, the bonding effect of matrix can reduce styrene-butadiene rubber(SBR), and the intensity of material also can reduce.
Claims (4)
1. a high strength composite, is characterized in that: in this material, the weight percent of each composition is: silicon-dioxide 3-6%, zinc oxide 4-6%, stearic acid 2-5%, sulphur 2-5%, acetal plastic marble mixture 15-20%, silane coupling agent 1-3%, all the other are styrene-butadiene rubber(SBR);
Described acetal plastic marble mixture is mixed by weight 10:1-3 by acetal plastic and marble, and wherein in marble, the weight percent of each composition is: calcium carbonate 92-98%, and all the other are silicon-dioxide.
2. high strength composite according to claim 1, is characterized in that: described styrene-butadiene rubber(SBR) adopts SBR – 2305, and silane coupling agent adopts KH – 590.
3. high strength composite according to claim 1, is characterized in that: the particle diameter of described silicon-dioxide and zinc oxide is 80-100 micron.
4. the preparation method of high strength composite according to claim 1, is characterized in that: the method comprises the following steps:
Marmorean preparation
Get the marble of above-mentioned composition, grind to form the marble powder of particle diameter 10-20 micron, for subsequent use;
The preparation of acetal plastic
Acetal plastic is heated to the 180-185 DEG C of acetal plastic obtained in molten state, for subsequent use;
Prepare acetal plastic marble mixture
By weight step (1) gained marble powder is joined in the acetal plastic of step (2) gained molten state, and stir, then naturally cool to room temperature and obtain acetal plastic and marble mixture; Then acetal plastic marble mixture is put into the liquid nitrogen upper space of-170 ~-180 DEG C of liquid nitrogen bath, then be incubated 15-20 minute, then take out fragmentation, the powder of the acetal plastic marble mixture after fragmentation, particle diameter is 80-100 micron;
Prepare composite granule material
Get silicon-dioxide by above-mentioned weight ratio, zinc oxide and acetal plastic marble mixture are uniformly mixed to form mixed powder; Get silane coupling agent by weight and alcohol is mixed to form mixed solution, the weight ratio of silane coupling agent and alcohol is 1:8-10; Mixed with mixed solution uniform stirring by mixed powder, then put into drying installation maintenance 0.5-1h, removing alcohol, drying temperature is 40-45 DEG C; Continue to be warmed up to 90-95 DEG C afterwards and keep 20-40 minute, obtain composite granule material;
Prepare high strength composite
Plasticate by weight styrene-butadiene rubber(SBR) is placed in mill, the time of plasticating is 15-20 minute, plasticating temperature is 60-80 DEG C, backward styrene-butadiene rubber(SBR) in add the composite granule material of above-mentioned stearic acid, sulphur and step (4), mixingly through 15-20 minute styrene-butadiene rubber(SBR) is mixed with composite granule material obtain rubber unvulcanizate, melting temperature is 70-85 DEG C, and the rubber unvulcanizate mixed is carried out sulfuration on vulcanizer, high strength composite is obtained after curing temperature 160-180 DEG C, sulfuration 20-40 minute.
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101817957A (en) * | 2010-04-09 | 2010-09-01 | 北京化工大学 | Low-lag microcellular rubber material for oscillation reduction of high-speed railway fastener and preparation method thereof |
| CN101864098A (en) * | 2010-06-03 | 2010-10-20 | 四川大学 | Preparation method of polymer/graphene composite material through in situ reduction |
| CN103709460A (en) * | 2013-12-16 | 2014-04-09 | 芜湖万润机械有限责任公司 | Automobile tension pulley bearing seal ring material |
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| JPS62138287A (en) * | 1985-12-12 | 1987-06-22 | Ricoh Co Ltd | Thermosensitive transfer medium |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101817957A (en) * | 2010-04-09 | 2010-09-01 | 北京化工大学 | Low-lag microcellular rubber material for oscillation reduction of high-speed railway fastener and preparation method thereof |
| CN101864098A (en) * | 2010-06-03 | 2010-10-20 | 四川大学 | Preparation method of polymer/graphene composite material through in situ reduction |
| CN103709460A (en) * | 2013-12-16 | 2014-04-09 | 芜湖万润机械有限责任公司 | Automobile tension pulley bearing seal ring material |
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Effective date of registration: 20181206 Address after: 221300 Pizhou Economic Development Zone, Xuzhou City, Jiangsu Province, north of Huancheng North Road and east of Hongqi Road Patentee after: Jiangsu Li Long Semiconductor Technology Co., Ltd. Address before: 210044 Ning six road, Pukou District, Nanjing, Jiangsu Province, No. 219 Patentee before: Nanjing University of Information Science and Technology |