| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_bfc8081ceb48e88c6389eea00dac5016 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B2235-6567
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B2235-6562
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B2235-483
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B2235-48
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B2235-77
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B2235-3839
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B2235-3826
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B2235-3813 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B35-622
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B35-83 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C04B35-83
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C04B35-622
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C04B35-84 |
| filingDate |
2022-05-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0701acacfcb2dc16d7982f2bd60cb16e
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_36334ab29eed94805e8de6a9bcb99631
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c0de3368c1067a3618aa6159ae5ac376
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e7243eca87dfd05255567361b76b396a
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_5b6d457fd3eb48ed2bf4efc9d0058794
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_2537246a16c9a261142332e0a2e7c0ec
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8469d910011363dc22017502fc55e3ed |
| publicationDate |
2022-07-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
CN-114804905-A |
| titleOfInvention |
A kind of composite material preparation method |
| abstract |
The invention discloses a composite material preparation method, which is characterized by comprising the following steps: preparing a fiber preform, wherein the fiber preform is formed by connecting several fiber layers; preparing a first liquid phase precursor and a second liquid phase precursor; The first liquid phase precursor is dispersed in a plane shape between the fiber layers of the fiber preform to obtain a primary fiber preform, and then the primary fiber preform is cured for the first time; and then the primary fiber preform is immersed in the first Vacuum pressure impregnation is carried out in the two-liquid phase precursor; the primary fiber preform after vacuum pressure impregnation is cured for the second time; and then repeated vacuum pressure impregnation and second curing are carried out to obtain; The internal distribution of the composite material is uniform and is not limited by the thickness of the fiber preform; at the same time, it avoids the damage of the fiber preform or the dislocation and movement between the fiber layers during the preparation process, which improves the yield, production efficiency and saves production costs. . |
| priorityDate |
2022-05-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |