Kevlar (Kevlar) bụ n'ezie aha ngwaahịa nke DuPont, nke bụ ụdị ihe onwunwe polymer.Aha kemịkal ya bụ "poly (terephthalamide)", nke a na-akpọkarị "aramid fiber".
Aramid bụ aha izugbe aromatic polyamide.E jiri ya tụnyere ihe polyamide nkịtị dị ka naịlọn 6 na nylon 66, aramid nwere ihe ndị mara mma dị ka ike dị elu, modulus dị elu na nguzogide okpomọkụ dị elu n'ihi na a na-eji mgbanaka benzene siri ike dochie yinye carbon dị nro dị nro na agbụ molecular.Enwere ọtụtụ ụdị eriri aramid, yana eriri aramid 1313 na aramid fiber 1414 na-ejikarị eme ihe.Kevlar kwekọrọ na eriri aramid 1414. Aha kemịkalụ nke aramid fiber 1313 bụ polyphthalamide, nke bụ ezigbo ihe na-egbochi ọkụ.
Ka ọ dị ugbu a, ihe a na-achọ kwa afọ nke eriri para-aramid (aramid fiber 1414) na China karịrị tọn 5,000, na-adabere na mbubata mbubata, ọnụahịa ahịa dị oke elu, ihe dị ka yuan / ton 200,000.Ndị na-emepụta ihe bụ DuPont na United States na Teijin na Japan.
Banyere m-aramid fiber (aramid fiber 1313), “Taimeida” nke Yantai Taihe New Materials Co., Ltd mepụtara nwere oke ahịa nke abụọ kachasị elu n'ụwa ma nwee asọmpi azụmaahịa siri ike.Ndị na-eweta eriri m-aramid zuru ụwa ọnụ bụ DuPont na United States na Teijin na Japan.Dupont nwere oke ahịa kachasị elu yana nkọwa ngwaahịa bara ụba, ma ka bụ onye ndu ụlọ ọrụ zuru ụwa ọnụ.
Oge nzipu: Nov-16-2022