公开(公告)号：US10807916B2

公开(公告)日：2020-10-20

申请号：US16069163

申请日：2016-11-29

Applicant: SOOCHOW UNIVERSITY

Inventor： Guozheng Liang ,  Longhui Zheng ,  Aijuan Gu ,  Bihuan Peng ,  Li Yuan

IPC: C04B41/45 ,  C08G59/68 ,  C04B35/468 ,  C08G59/40 ,  C04B41/52 ,  C04B41/90 ,  C04B35/636 ,  C04B35/634 ,  C08G59/50 ,  C04B38/06 ,  C04B41/00 ,  C04B41/48 ,  C04B41/83 ,  C08J5/24

Abstract: In a method of preparing a modified barium titanate foam ceramic/thermosetting resin composite material, 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 these components are mixed and grounded 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 deposited in situ 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 the modified barium titanate foam ceramic/thermosetting resin composite material is obtained after a thermosetting treatment.

公开(公告)号：US10053544B2

公开(公告)日：2018-08-21

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 ,  C08K7/24 ,  C08L63/00 ,  C08L79/04 ,  C08L79/08 ,  B29B7/00 ,  B29B7/18 ,  B29B7/82 ,  C08J3/20 ,  C08L35/00 ,  H01B3/30 ,  H01B3/40 ,  H01B3/44 ,  C08J3/205 ,  B29K63/00 ,  B29K79/00 ,  B29K307/04

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：US12286519B2

公开(公告)日：2025-04-29

申请号：US18012220

申请日：2020-11-10

Applicant: SOOCHOW UNIVERSITY

Inventor： Li Yuan ,  Aijuan Gu ,  Guozheng Liang

IPC: C08J7/04 ,  B82Y30/00 ,  C08J7/18

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：US12240948B2

公开(公告)日：2025-03-04

申请号：US17631382

申请日：2020-07-27

Applicant: SOOCHOW UNIVERSITY

Inventor： Aijuan Gu ,  Guozheng Liang ,  Li Yuan

IPC: C08G73/12 ,  C08G73/10

Abstract: A method of preparing a remoldable shape memory bismaleimide resin includes blending 2-allylphenyl glycidyl ether and adipic 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)adipate containing a reversible dynamic group; then uniformly mixing bis(3-(2-allylphenoxy)-2-hydroxypropyl)adipate and bismaleimide, curing to obtain the remoldable shape memory bismaleimide resin. The prepared remoldable shape memory bismaleimide resin is not only excellent heat resistance and mechanical properties, but also can be remolded under hot pressing conditions. The method of preparing the remoldable shape memory 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：US10882797B2

公开(公告)日：2021-01-05

申请号：US16069160

申请日：2016-11-29

Applicant: SOOCHOW UNIVERSITY

Inventor： Guozheng Liang ,  Longhui Zheng ,  Aijuan Gu ,  Tiekuang Ding ,  Li Yuan

IPC: C04B35/468 ,  C04B41/88 ,  C04B38/10 ,  C04B35/634 ,  C04B38/06 ,  C04B41/00 ,  C04B41/51 ,  C04B35/636 ,  C04B38/00 ,  C08L75/04 ,  C04B111/20 ,  C08L25/06 ,  C08L27/06

Abstract: Disclosed are a micrometer/nanometer silver-loaded barium titanate foam ceramic 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 blank is obtained after drying; and then a barium titanate foam ceramic is obtained through sintering. Through dopamine modification, micrometer/nanometer silver is in-situ deposited on a skeleton surface so as to obtain a modified micrometer/nanometer silver-loaded barium titanate foam ceramic. The modified micrometer/nanometer silver-loaded barium titanate foam ceramic is then put into a newly prepared Tollens' reagent for further reduction so as to obtain a micrometer/nanometer silver-loaded barium titanate foam ceramic with a three-dimensional network skeleton structure.

公开(公告)号：US12018430B2

公开(公告)日：2024-06-25

申请号：US17349802

申请日：2021-06-16

Applicant: NANTONG TEXTILE & SILK INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE ,  SOOCHOW UNIVERSITY

Inventor： Guozheng Liang

IPC: D06M13/328 ,  B82Y30/00 ,  B82Y40/00 ,  D06M13/513 ,  D06M13/52 ,  D06M101/36

CPC classification number: D06M13/328 ,  D06M13/513 ,  D06M13/52 ,  B82Y30/00 ,  B82Y40/00 ,  D06M2101/36 ,  D06M2200/25 ,  D06M2200/30

Abstract: A flame-retardant ultraviolet-resistant aramid fiber, the preparation method therefor comprising the following steps: adding nanoparticles into a hydrogen peroxide solution, performing magnetic stirring for 0.5-1 h, adding a sulfuric acid solution, and further performing magnetic stirring for 0.5 h; performing filtering to obtain a filter cake, and washing the filter cake with water and drying same to obtain modified particles; modifying the modified particles with curcumin and dopamine to obtain organic substance-modified particles; and finally subjecting the organic substance-modified particles to a reaction with a silicon methoxylated aramid fiber, so as to obtain a surface-modified aramid fiber. The present invention has high ultraviolet absorption and extremely low catalytic activity, avoiding damage to a fiber structure by photocatalysis in a radiation process, and in particular improving flame retardancy of the aramid fiber.

公开(公告)号：US11942272B2

公开(公告)日：2024-03-26

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 ,  C08J5/04 ,  C08J5/06 ,  C08L29/04 ,  H01G11/26 ,  H01G11/36

CPC classification number: H01G11/86 ,  C08J5/046 ,  C08J5/06 ,  C08L29/04 ,  H01G11/26 ,  H01G11/36 ,  C08J2329/04 ,  C08J2477/06 ,  C08L2205/035 ,  C08L2205/16

Abstract: A method for preparing an aramid fiber electrochemical capacitor includes (1) immersing aramid fiber bundles in an aqueous solution; (2) adding polyvinylpyrrolidone into a silver ammonia solution to obtain a solution C, adding an aqueous glucose solution to the solution C to obtain aramid fiber bundles coated with silver nanoparticles; (3) adding the aramid fiber bundles into an aqueous solution containing γ-(2,3-glycidoxy) propyltrimethoxysilane; (4) adding the aramid fiber bundles coated by silver nanoparticles with epoxy groups into an ethanol containing carbon nanotubes with carboxyl groups; (5) adding the aramid fiber bundles with two-layered coatings into an aqueous solution containing pyrrole; (6) heating a mixture of a polyvinyl alcohol, an acid, and water to obtain a polyvinyl alcohol gel, immersing two strands of the aramid fiber bundles, carbon nanotubes and silver nanoparticle in the polyvinyl alcohol gel, and twisting the two strands together to obtain the aramid fiber electrochemical capacitor.

公开(公告)号：US11387053B2

公开(公告)日：2022-07-12

申请号：US16759330

申请日：2018-07-04

Applicant: SOOCHOW UNIVERSITY

Inventor： Aijuan Gu ,  Hao Fang ,  Guozheng Liang ,  Li Yuan

IPC: H01G11/36 ,  D06M11/83 ,  H01G11/24 ,  H01G11/40 ,  H01G11/86 ,  D06M11/74 ,  D06M13/11 ,  D06M15/61 ,  D06M13/513 ,  D06M15/37 ,  D06M23/08

Abstract: The invention discloses an aramid fiber electrode 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, 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 both high specific capacitance, high energy density, high mechanical performance, high stability, good flexibility and wearability. And other characteristics; the preparation method is controllable and suitable for large-scale applications.

公开(公告)号：US11008423B2

公开(公告)日：2021-05-18

申请号：US16466111

申请日：2016-12-03

Applicant: SOOCHOW UNIVERSITY

Inventor： Aijuan Gu ,  Jiatao Miao ,  Guozheng Liang ,  Li Yuan

IPC: C08G73/10 ,  C08G73/12

Abstract: The present invention discloses a modified bismaleimide resin and preparation method thereof; under conditions of N,N-dimethylformamide serving as a catalyst, biomass-based 2,5-furandicarboxylic acid and thionyl chloride are acylated to obtain 2,5-furan diformyl chloride, which is then dissolved in dichloromethane with a biomass-based eugenol; under tertiary amine conditions an esterification reaction takes place, and a fully biomass-based bis(4-allyl-2-methoxyphenyl)furan-2,5-dicarboxylic acid ester is thus obtained; same is used for preparing a modified bismaleimide resin. The bismaleimide resin prepared by the present invention has excellent thermal properties and rigidity; the preparation method uses 2,5-furandicarboxylic acid from biomass as well as eugenol; the raw materials are green and environmentally friendly and renewable; the invention also has the feature of a simple production process, and has broad prospects for application in such fields as aeronautics and astronautics, electronic information, electrical insulation.

公开(公告)号：US12275821B2

公开(公告)日：2025-04-15

申请号：US17631389

申请日：2020-07-28

Applicant: SOOCHOW UNIVERSITY

Inventor： Aijuan Gu ,  Guozheng Liang ,  Li Yuan

IPC: C08G73/12 ,  B29B7/00 ,  B29B7/82 ,  B29B9/02 ,  B29C43/00 ,  B29C43/52 ,  B29K96/00 ,  C07D209/00 ,  C08F222/40 ,  C08G59/14 ,  C08J5/24 ,  C08L79/08

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.