http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-111664970-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01L1-16 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H02J7-32 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H02N2-18 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01L1-16 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H02N2-18 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H02J7-32 |
| filingDate | 2020-05-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2021-06-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2021-06-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-111664970-B |
| titleOfInvention | Self-powered flexible pressure sensing device and preparation method thereof |
| abstract | The invention relates to the technical field of sensing materials and devices, and aims to provide a preparation method of a self-powered flexible pressure sensing device. The method comprises the following steps: adding polyvinylidene fluoride powder, silver nanowires and nano zinc oxide particles into an organic solvent, performing ultrasonic dispersion stirring at room temperature, and forming a film by using a suspension system to obtain a flexible piezoelectric composite film; immersing the flexible piezoelectric composite film in acid liquor, standing at room temperature to remove zinc oxide nanoparticles, washing and drying to obtain a spongy porous flexible piezoelectric composite film; respectively sticking electrodes on the surfaces of the two sides of the porous flexible piezoelectric composite film, and carrying out polarization treatment to activate the piezoelectric performance of the film; and adhering wires on the electrodes on the two sides to obtain the self-powered flexible pressure sensing device. The method has the advantages of simple process, high operability and high repeatability. The product has high-sensitivity pressure detection performance and can detect the change of weak pressure stress; the power supply of an external power supply is not needed, and the miniaturization and diversification of the device can be realized. |
| priorityDate | 2020-05-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 24.