公开(公告)号：US20200294731A1

公开(公告)日：2020-09-17

申请号：US16759329

申请日：2018-07-04

Applicant: SOOCHOW UNIVERSITY

Inventor： Aijuan GU ,  Hao FANG ,  Guozheng LIANG ,  Li YUAN

IPC: H01G11/86 ,  C08J5/06 ,  C08J5/04 ,  C08L29/04 ,  H01G11/26 ,  H01G11/36

Abstract: The invention discloses an aramid fiber electrochemical capacitor and a preparation method thereof. Silver nanoparticles, carbon nanotubes and polypyrrole were sequentially coated on the surface of the aramid fiber by chemical bonding to prepare an aramid fiber electrode. The two aramid fiber electrodes were wound with an electrolyte to obtain an aramid fiber electrochemical capacitor. Compared with the polymer fiber electrochemical capacitor prepared in the prior art, the aramid fiber electrochemical capacitor provided by the present invention has high specific capacitance, high energy density, high mechanical performance, high stability, good flexibility and wearability; moreover, the preparation method is controllable and suitable for large-scale applications.

公开(公告)号：US20170335069A1

公开(公告)日：2017-11-23

申请号：US15534500

申请日：2015-05-28

Applicant: SOOCHOW UNIVERSITY

Inventor： Guozheng LIANG ,  Yicheng JIAO ,  Aijuan GU ,  Li YUAN

IPC: C08J3/00 ,  B29B7/00 ,  H01B3/30 ,  H01B3/40 ,  B29B7/18 ,  C08J3/20 ,  C08L35/00 ,  C08L63/00 ,  C08L79/04 ,  H01B3/44 ,  B29B7/82 ,  B29K307/04 ,  B29K63/00 ,  B29K79/00

CPC classification number: C08J3/005 ,  B29B7/005 ,  B29B7/183 ,  B29B7/82 ,  B29K2063/00 ,  B29K2079/085 ,  B29K2307/04 ,  B29K2995/0006 ,  C08J3/201 ,  C08J3/203 ,  C08J3/2056 ,  C08J2300/24 ,  C08J2335/00 ,  C08J2363/02 ,  C08J2379/04 ,  C08J2479/04 ,  C08J2479/08 ,  C08K7/24 ,  C08L35/00 ,  C08L63/00 ,  C08L79/04 ,  C08L79/08 ,  C08L2205/02 ,  C08L2205/03 ,  H01B3/303 ,  H01B3/306 ,  H01B3/40 ,  H01B3/448 ,  C08K3/041

Abstract: The invention discloses a carbon nanotube/polyetherimide/thermosetting resin dielectric composite and a preparation method therefor. 100 parts by weight of polyetherimide and 1-7 parts by weight of carbon nanotube are mixed uniformly in an Haake torque melt cavity to obtain a carbon nanotubes/polyetherimide composite; 20 parts of the carbon nanotube/polyetherimide composite are dissolved in 100-150 parts of dichloromethane, then the mixed solution is added in 100 parts of molten thermocurable thermosetting resin, mixing, and heat preserving, stirring are performed until a mixture is formed in a uniform state, and curing and post-treating are performed to obtain a carbon nanotube/thermosetting resin dielectric composite, wherein the substrate thereof has a typical reverse phase structure, while the carbon nanotubes are dispersed in a polyetherimide phase. The composite has a relatively low percolation threshold, a high dielectric constant and a low dielectric loss. The preparation method of the present invention has a simple process and is suitable for large-scale production.

公开(公告)号：US20230257541A1

公开(公告)日：2023-08-17

申请号：US18012220

申请日：2020-11-10

Applicant: SOOCHOW UNIVERSITY

Inventor： Li YUAN ,  Aijuan GU ,  Guozheng LIANG

IPC: C08J7/04 ,  C08J7/18

CPC classification number: C08J7/042 ,  C08J7/18 ,  C08J2383/08

Abstract: A wear-resistant super-hydrophobic composite material and a preparation method therefor are disclosed. The wear-resistant super-hydrophobic composite material includes a substrate and a wear-resistant super-hydrophobic composite material coating layer on the surface of the substrate; the wear-resistant super-hydrophobic composite material coating layer is obtained by curing a precursor for the super-hydrophobic composite material coating layer; the precursor for the super-hydrophobic composite material coating layer includes a gel and an ACNTB-SiO2-coupling agent layer on the surface of the gel; the gel includes an epoxy resin and amino-terminated hyperbranched polysiloxane, or includes an epoxy resin, amino-terminated hyperbranched polysiloxane and an additive; and the additive is an ACNTB-SiO2-coupling agent and/or diglycidyl-ether-terminated polydimethylsiloxane. The wear-resistant super-hydrophobic composite material has a water contact angle higher than 160° and more than 250 rubbing cycles.

公开(公告)号：US20230024059A1

公开(公告)日：2023-01-26

申请号：US17785451

申请日：2019-12-15

Applicant: SOOCHOW UNIVERSITY

Inventor： Li YUAN ,  Aijuan GU ,  Guozheng LIANG

IPC: C08G59/24 ,  C08G59/50 ,  C08G59/42 ,  C08K5/1515 ,  C08K5/07

Abstract: The present invention relates to an epoxy resin system having a phase separation structure, a preparation method therefor and an application thereof. After mixing an epoxy resin, an amine curing agent and an epoxy diluent, pre-polymerization is carried out to obtain a prepolymer 1; or, after mixing an epoxy resin and an amine curing agent, pre-polymerization is carried out to obtain a prepolymer 1; after mixing an epoxy resin, an anhydride curing agent and an accelerator, polymerization is carried out to obtain a prepolymer 2; and after the prepolymer 1 and the prepolymer 2 are mixed, curing is carried out to obtain an epoxy resin system having a phase separation structure. The present invention controls the formation of a thermosetting epoxy resin system having a phase separation structure by means of preparing different epoxy resin pre-polymerization systems and using an interface reaction between the different pre-polymerization systems.

公开(公告)号：US20220348718A1

公开(公告)日：2022-11-03

申请号：US17631389

申请日：2020-07-28

Applicant: SOOCHOW UNIVERSITY

Inventor： Aijuan GU ,  Guozheng LIANG ,  Li YUAN

IPC: C08G73/12 ,  B29B9/02 ,  B29C43/00 ,  B29C43/52

Abstract: A remoldable bismaleimide resin and application thereof. The preparation method includes blending 2-allylphenyl glycidyl ether and terephthalic acid in acetonitrile, carrying out an esterification reaction under the condition of quaternary ammonium salt as a catalyst to obtain bis(3-(2-allylphenoxy)-2-hydroxypropyl) terephthalate containing a reversible dynamic group; then uniformly mixing bis(3-(2-allylphenoxy)-2-hydroxypropyl) terephthalate and bismaleimide, curing to obtain the re-moldable bismaleimide resin. The prepared re-moldable bismaleimide resin not only has excellent heat resistance and mechanical properties, but also can be remolded under hot pressing conditions. The preparation method of the re-moldable bismaleimide resin has the advantages of wide raw material sources and simple process, and has a wide application prospect in the fields of aerospace, transportation, electronic information, new energy, insulated electrical industry and the like.

公开(公告)号：US20200062888A1

公开(公告)日：2020-02-27

申请号：US16466075

申请日：2016-12-03

Applicant: SOOCHOW UNIVERSITY

Inventor： Aijuan GU ,  Jiatao MIAO ,  Guozheng LIANG ,  Li YUAN

IPC: C08G59/24 ,  C08G59/68

Abstract: The present invention discloses a biomass-based epoxy resin and preparation method thereof; under conditions of N,N-dimethylformamide as a catalyst, 2,5-furandicarboxylic acid and thionyl chloride are acylated to obtain 2,5-furan diformyl chloride; then it is dissolved with dichloromethane; under tertiary amine conditions an esterification reaction takes place, and bis(4-allyl-2-methoxyphenyl)furan-2,5-dicarboxylic acid ester is thus obtained; by means of meta-chloroperoxybenzoic acid, its unsaturated double bond is epoxidized to obtain a biomass-based epoxy resin. The process of the present invention is simple; the raw materials come from biomass 2,5-furandicarboxylic acid and eugenol; in comparison with bisphenol-A epoxy resin based on petroleum and coal resources, the raw materials are green and renewable, and are advantageous to reducing the consumption of renewable resources with regard to polymeric material. The obtained cured epoxy resin has excellent thermal properties and modulus, and has broad prospects for application.

公开(公告)号：US20190016644A1

公开(公告)日：2019-01-17

申请号：US16069163

申请日：2016-11-29

Applicant: ZHANGJIAGANG INSTITUTE OF INDUSTRIAL TECHNOLOGIES SOOCHOW UNIVERSITY

Inventor： Guozheng LIANG ,  Longhui ZHENG ,  Aijuan GU ,  Bihuan PENG ,  Li YUAN

IPC: C04B41/45 ,  C04B38/06 ,  C04B41/00 ,  C04B41/48 ,  C04B41/83 ,  C08J5/24

Abstract: Disclosed are a modified barium titanate foam ceramic/thermosetting resin composite material and a preparation method therefor. An organic additive is used as an auxiliary; deionized water is used as a solvent; nanometer barium titanate is used as a ceramic raw material; and same are mixed and ground so as to form a slurry. A pre-treated polymer sponge is impregnated in the slurry for slurry coating treatment and a barium titanate foam ceramic is obtained after drying and sintering. Then, through dopamine modification, micrometer/nanometer silver is in-situ deposited on a skeleton surface. A resin, which is in the molten state and is thermosettable, is immersed into pores of the modified barium titanate foam ceramic, and a modified barium titanate foam ceramic/thermosetting resin composite material is obtained after a thermosetting treatment.

公开(公告)号：US20180194692A1

公开(公告)日：2018-07-12

申请号：US15740802

申请日：2016-11-29

Applicant: SOOCHOW UNIVERSITY

Inventor： Guozheng LIANG ,  Longhui ZHENG ,  Aijuan GU ,  Shuhui PIAO ,  Li YUAN

IPC: C04B38/08 ,  C04B38/06 ,  C04B35/468 ,  C04B35/634 ,  C04B35/636 ,  C08L25/08 ,  C08L27/06 ,  C08L33/14 ,  C08L33/26 ,  C08L75/04

CPC classification number: C04B38/08 ,  C04B35/468 ,  C04B35/4682 ,  C04B35/622 ,  C04B35/63416 ,  C04B35/6365 ,  C04B38/061 ,  C04B38/0615 ,  C04B2111/00793 ,  C04B2111/0081 ,  C04B2111/28 ,  C04B2235/5454 ,  C04B2235/6028 ,  C04B2235/6562 ,  C04B2235/77 ,  C04B2235/945 ,  C04B2235/96 ,  C08G2101/00 ,  C08L25/08 ,  C08L27/06 ,  C08L29/04 ,  C08L33/14 ,  C08L33/26 ,  C08L75/04 ,  C08K3/24 ,  C08L1/284 ,  C08K3/105 ,  C08L25/06 ,  C08K3/11

Abstract: Barium titanate foam ceramics and a preparation method thereof are disclosed. An organic binder, an organic rheological agent and an organic dispersing agent are used as auxiliaries; deionized water is used as a solvent; nanometer barium titanate is used as a ceramic raw material; and all of same are mixed and ground so as to form a slurry with a certain solid content. A pretreated polymer sponge is impregnated into the slurry for slurry coating treatment and then dried to obtain a barium titanatefoam ceramic blank with an ideal slurry coating and without blocking holes, and same is then sintered so as to obtain a barium titanate foam ceramic. The foam ceramic has a three-dimensional network skeleton structure, and the skeleton of the foam ceramic is composed of pure barium titanate ceramic of a single chemical composition.

公开(公告)号：US20230257623A1

公开(公告)日：2023-08-17

申请号：US18012272

申请日：2021-01-24

Applicant: SOOCHOW UNIVERSITY

Inventor： Li YUAN ,  Aijuan GU

IPC: C09D163/00 ,  C09D7/62 ,  C09D183/08 ,  C09D183/06 ,  C09D5/16

CPC classification number: C09D163/00 ,  C09D7/62 ,  C09D183/08 ,  C09D183/06 ,  C09D5/1681

Abstract: Disclosed in the present invention are a precursor for a super-hydrophobic composite material coating and a preparation method therefor. The preparation method includes the following steps: coating an ACNTB-SiO2 coupling agent suspension, in parts by weight, on the surface of a gel body of a mixture of the ACNTB-SiO2 coupling agent, an epoxy resin, a diglycidyl-ether-terminated polydimethylsiloxane, and an amino-terminal hyperbranched polysiloxane, and volatilizing a solvent, so as to obtain the precursor for the super-hydrophobic composite coating; and then performing curing, so as to obtain the durable super-hydrophobic composite coating. The durable super-hydrophobic composite coating has the characteristics of simple operations, durability and good hydrophobicity; and the prepared coating has excellent mechanical properties and wear resistance.

公开(公告)号：US20220072817A1

公开(公告)日：2022-03-10

申请号：US17423257

申请日：2019-01-15

Applicant: SOOCHOW UNIVERSITY

Inventor： Aijuan GU ,  Guozheng LIANG ,  Li YUAN

IPC: B29C70/62 ,  B29C35/08 ,  C08L63/00 ,  C08J3/28 ,  C08J5/24

Abstract: This invention disclosed a resin-based composite material has a three-layer structure and the application thereof. According to the invention, an oriented carbon nanotube bundle/epoxy resin composite material (denoted as layer B) is prepared with the microwave curing method, a barium titanate nanofiber/epoxy resin composite material (denoted as layer E) is prepared by means of a blade coating-heat curing method, and a composite material of a B-E-B three layer structural is formed by means of a layer-by-layer curing technology. Compared to the composite material of the conductor-insulating layer/polymer layer structural prepared in the prior art, the resin-based composite material has a three-layer structure provided by the invention has with high energy storage density, and low dielectric loss and high permittivity; and the preparation process therefor is controllable and easy to operate, short in production cycle, and suitable for large-scale application.