Gutta-percha - ya .. Meaning nke okwu "gutta-percha"

A na ihe onwunwe ndị dị otú ahụ dị ka gutta percha na-ezo aka a dịgasị iche iche nke siri ike eke latex enwetara site sap osisi ụdị Palaquium, Isonandra na Dichopsis. The okwu na-abịa site aha nke osisi na Malay asụsụ - "geyha-Persian", nke sụgharịta ka 'latex uwe aka. " Gutta-percha - bụ ihe? Nke a adjective na-eji ma n'ụzọ nkịtị ma n'ụzọ ihe atụ.

Site a na nkà mmụta sayensị na-ekwu

Gịnị bụ nzube nke okwu "gutta-percha"? Site a na nkà mmụta sayensị na-ekwu, nke a ihe onwunwe e nkewa na 1843 na zoro aka bara uru uwa thermoplastics. Na nkera nke abụọ nke XIX narị afọ, gutta-percha eji maka a dịgasị iche iche nke anụ ụlọ na ulo oru nzube.

Karịsịa, a ihe e chọrọ ka ihe-egbochi ihe ihe n'ihi na mmiri n'okpuru osimiri teligraf Gịnị. Ogologo oge tupu gutta-percha ke ẹkenam ke Western ụwa, ọ na-eji na a na-erughị esichara ụdị Malaysian Archipelago natives nke na-eme ịṅụ maka mma, na-eje ije ruo na ndị ọzọ na nzube.

The mbụ European na-achọpụta nke a ihe onwunwe bụ John John kwuru na ya dị na Far East ke 1656. Ọ kpọrọ ya "oké ọhịa Mather." Dr. William Montgomery, a nlekọta ahụ ike nke ndị Indian ọrụ, ẹkenam gutta-percha n'ime bara uru iji na West. Ọ mbụ ghọtara nwere nke a ihe na nkà mmụta ọgwụ, na na 1843 ọ nọ na ọdịda nke Gold Nrite nke Royal Society nke Arts na London.

gutta-percha osisi

Na Malaysia, osisi ndị a maara dị ka "Taban", na ndị mmadụ na e nwere omenala na-eji obi tara mmiri ọṅụṅụ ( "khans") n'ihi na imewe nke ihe dị ka kpụrụ ịṅụ maka ngwá ọrụ na mma. Nke a eke latex, na-akpọ gutta-percha, bụ a bara uru ngwaahịa.

Palaquium gutta osisi na-eto eto na elu 5-30 m na a na a dayameta nke 1.5 m. Evergreen doo, interleaved ma ọ bụ ndokwa na a gburugburu, a dị mfe, otu-ibe, dị 8-25 cm ọ bụla n'ogologo. Ha na-kenkowaputa green n'elu ma na-acha odo odo ma ọ bụ glaucous n'okpuru.

Okooko osisi na-egosi na obere ụyọkọ tinyere ị ga, onye ọ bụla ifuru nwere a ọcha corolla na anọ-na ezinụlọ (n'ozuzu isii) na-egbusi pupụtara. Mkpụrụ a beri ovoid 3-7 cm n'obosara, nwere si otu anọ osisi. Na ọtụtụ ụdị, ọ bụ oriri.

Na Australia, na gutta percha - a nkịtị aha, akpan eji maka osisi Excoecaria parvifolia, nke na-enye ihe aromatic, a arọ ọchịchịrị aja aja osisi. Ọ na-akpọ "ihe edere birch." Nke a akpan akpan umu metụtara nwa afọ Palaquium.

Si chemical ele ihe anya

Gutta-percha Gịnị ka ọ pụtara? Ke truest uche ya - mere nke gutta-percha. Olee ụdị meteriall si a chemical ele ihe anya? Ya Ọdịdị bụ a latex ma ọ bụ elastomer polima si isoprene ma ọ bụ polyisoprene. Mgbe latex rubbers bụ amorphous na molekụla Ọdịdị, guttapercha (transstruktura) crystallized, nke na-eduga a stiffer anọgidesi. Gutta-percha - bụ isoprene polima nke bụ adụ mgbe kpụ ọkụ n'ọnụ na ike mfe kpụzie dị iche iche shapes nke bụ kpomkwem zuru ezu.

Jiri na Dentistry

Otu bioinertsiya na mere gutta percha adabara mmiri Gịnị,-adabara ọgwụ nzube, ya bụ na dentistry. Nke a ihe onwunwe na-eji na ọtụtụ ịwa ahụ na ngwaọrụ na mgbọrọgwụ ọgwụ (obturation ma ọ bụ na-ejuputa efu ohere n'ime nha nha mgbọrọgwụ mgbe ọ agbanweela endodontic ọgwụ). Ya na ahụ na chemical Njirimara, gụnyere inertness na biocompatibility, agbaze mgbe, ductility na malleability, na-eme dị mkpa na endodontics.

akụkọ ihe mere eme iji

Ka biologically inert na ike, nke a na ụdị latex bụ ezigbo ọkụ insulator na a elu dielectric mgbe nile. The osisi nke ọtụtụ ụdị ndị bara uru. Western ụwa Njirimara nke gutta-percha hụrụ naanị na 1842, ọ bụ ezie na obodo Malayan Aborigine ji ya ruo ọtụtụ narị afọ. Ọ bụrụ na ị ka mmiri mmiri (ihe ọṅụṅụ) na ikusi na coagulate na anyanwụ, ọ na-enyo na ike latex, nke nwere ike ọzọ na-eme mgbanwe ọ bụrụ na ọ bụ kpụ ọkụ n'ọnụ, ma ọ bụghị kenkuwa, n'adịghị roba, nwetara tupu nchọpụta nke vulcanization.

Site 1845, ndị UK emepụta teligraf wires, a gwara mmanụ na gutta-percha. Latex jere ozi dị ka onye-egbochi ihe ihe maka n'oge okpuru mmiri teligraf Gịnị, gụnyere mbụ transatlantic teligraf USB. Gutta-percha karịsịa kwesịrị ekwesị n'ihi na nke a, ebe ọ bụ na ọ na-adịghị wakporo site na mmiri osisi ma ọ bụ ụmụ anụmanụ na ihe mebiri gara aga okpuru mmiri Gịnị.

The ihe onwunwe bụ isi akụrụngwa Chatterton compound eji dị ka ihe-egbochi ihe sealant maka teligraf na ndị ọzọ na eletriki Gịnị. Ebe ọ bụ na 1930 goda polyethylene displaces gutta-percha dị ka ihe ọkụ insulator.

Ke n'etiti ndị XIX narị afọ, gutta-percha E jikwa maka imewe nke ngwá ụlọ, akpan akpan, ụlọ ọrụ "Gutta-perch", tọrọ ntọala na 1847. Mgbe ewe iwe, ihe nwere ike kpụzie n'ime ngwá ụlọ, ihe ịchọ mma ma ọ bụ arịa. Ụfọdụ n'ime ndị a ji achọ iberibe na Renaissance style e gosiri na Great ngosi na 1851 na Hyde Park na London.

oge a na ojiji

Ọ na-e-eji maka imewe nke iru uju ọla, n'ihi na ọ bụ ọchịchịrị na ike mfe kpụrụ n'ime chaplet ma ọ bụ ndị ọzọ shapes. Egbe adịgide na ubu pad na-mere nke gutta-percha nke nyere ha ike na anwụ ngwa ngwa. Golf bọl guttie, onye a siri ike gutta-percha isi, mere a ezigbo mgbanwe ke egwuregwu.

Nke a ihe onwunwe nọgidere isi ulo oru ngwaahịa na nke iri abụọ na narị afọ, ma mgbe e mesịrị wee jiri nwayọọ nwayọọ dochie magburu onwe ya mma sịntetik ihe. N'agbanyeghị ya ogologo akụkọ ihe mere eme, ndị gutta percha ka na-eji taa. Modern ụlọ-anọgide na-eji ya maka ejuputa mgbọrọgwụ ọwa mmiri.

"Gutta-percha": uru

Gịnị bụ echiche a? Ya mere, n'ụzọ nkịtị guttaperchivye - ka nke gutta-percha (eke roba). N'ụzọ ihe atụ, okwu a ka enwetara a uru metụtara na mgbanwe na elasticity. Banyere definition nke ndị mmadụ malitere ga-eji, na aghọwo a ezinụlọ aha mgbe ede D. V. Grigorovichem ya mwute akụkọ "gutta-percha nwata."

Nke a bụ ọdachi akụkọ nke a nwata, ọgbọ egwuregwu, banyere nke ọ na-ahụ kwuru na ọ dịghị ọkpụkpụ, otú mgbanwe, na-agile ọ bụ. Site ugbu a, ndị mmadụ na-akpọ gutta-percha - bụ maka na-eme egwuregwu na a ọma gbatia. Ọ na-enweta site ogologo ọzụzụ. Gutta-percha nwaanyị - a eme egwuregwu mmega ahụ, ike na-ebili na gị ahu ịrịba ihe.

gutta-percha gait

Gutta-percha Gịnị ka ọ pụtara? Okwu a bụ ugbu a nnọọ fashionable na-eto eto òtù pụtara a na-agbanwe, mara mma, keugwu. Ọ bụrụ na anyị na-echeta okwu nke song na-agụ egwú Bianca - "Gutaperchevoy gait anyị na-aga n'ime" Iarfor "(n'abalị club) ...".

N'ebe a, anyị nwere n'uche abụghị nke ukwuu na-agbanwe na mgbanwe dị ka a nro, swaying na keugwu. Ị nwere ike mgbe ụfọdụ na-anụ banyere onye a ka ọ bụ guttaperchivaya. Nke a nwere ike ịpụta na a mgbanwe, na-sexy. N'agbanyeghị eziokwu na ihe ndị gara aga na okwu a metụtara na roba na-eme egwuregwu mmega, ugbu a ọ bụ na-otu mmekọahụ.

ịrịba mgbanwe

Gutta-percha - a ijuanya mgbanwe, plastic, na-enwe ohere na-ehulata dị iche iche ntụziaka, na-enweghị ajọ mbunobi ha onwe ha ike. Nke a nwere ike na-hụrụ na ọgbọ egwuregwu. Na nọmba ndị a bụ gutta-percha ndị mmadụ,-eme egwuregwu mmega na ihe nkiri na ụba ahụ mgbanwe, pụtara kiriri ya ịrịba plasticity.