TPR nwere uru ndị a: (1) Enwere ike ịhazi ya site na igwe igwe na-emepụta thermoplastic n'ozuzu, dị ka ịkpụzi injection, ịkpụzi extrusion, ịkpụzi ihe ọkụkụ, ịkpụzi mkpakọ, na ịkpụzi ebufe ebu;(2) Enwere ike ime ya site na igwe na-akpụzi ọgwụ mgbochi rọba, enwere ike belata oge site na ihe dịka 20min ruo ihe na-erughị 1min;(3) Enwere ike ịkpụzi ya na vulcanized site na pịa, na-eji ngwa ngwa ngwa ngwa na oge vulcanization dị mkpirikpi;(4) Ihe mkpofu ndị a na-emepụta na usoro mmepụta (na-agbanahụ burrs na extruding rubber) na ngwaahịa mkpofu ikpeazụ nwere ike ị weghachi ya ozugbo maka iji ya eme ihe: (5) Enwere ike ịmegharị ngwa ngwa TPR ochie ma jiri ya mee ihe iji belata mmetọ gburugburu ebe obibi ma gbasaa. isi iyi nke mmụgharị ihe onwunwe;(6) Ọ dịghị vulcanization a chọrọ iji chekwaa ike.Were ike ike nke mmepụta ụdọ dị elu dị ka ihe atụ: 188MJ / kg maka roba na 144MJ / kg maka TPR, nke nwere ike ịzọpụta karịa 25% nke ike;(7) Nkwado onwe onye dị ukwuu, a na-eme ka usoro ahụ dịkwuo mfe, nke mere na mmetụta nke onye na-emepụta ihe na polymer na-ebelata nke ukwuu, na arụmọrụ dị mma dị mfe ịmụta;(8) Ọ na-emepe ụzọ ọhụrụ maka ụlọ ọrụ rọba ma gbasaa ngwa ngwa nke ngwaahịa roba.Ihe ọghọm bụ na nguzogide okpomọkụ nke TPR adịghị mma dị ka nke roba, na ihe onwunwe anụ ahụ na-ebelata nke ukwuu na mmụba nke okpomọkụ, ya mere oke ngwa ngwa dị oke.N'otu oge ahụ, nrụrụ mkpakọ, nkwụghachi na ịdịte aka dị ala karịa nke roba, ọnụahịa na-adịkarị elu karịa nke roba yiri ya.Otú ọ dị, n'ozuzu, uru nke TPR ka dị ịrịba ama, ebe adịghị ike na-akawanye mma mgbe niile.Dị ka ụdị ọhụrụ nke nchekwa nchekwa ike na ihe eji eme rọba na gburugburu ebe obibi, TPR nwere atụmanya mmepe na-ekwe nkwa.
Polyurethane (PU), aha zuru oke bụ polyurethane, bụ ngwakọta polymer.Ọ bụ Otto Bayer mere ya na 1937. E kewara Polyurethane ụzọ abụọ: ụdị polyester na ụdị polyether.Enwere ike ịme ha ka ọ bụrụ plastik polyurethane (karịsịa plastik ndị nwere ụfụfụ), eriri polyurethane (a na-akpọ spandex na China), polyurethane rubbers na elastomers.
Polyurethane dị nro na-abụkarị usoro ntanetị nke thermoplastic, nke nwere nkwụsi ike ka mma, nkwụsi ike nke kemịkalụ, nkwụsi ike na ihe eji arụ ọrụ karịa ihe ụfụfụ PVC, ma nwee obere nrụrụ mkpakọ.Ọ nwere ezigbo mkpuchi ọkụ, mkpuchi ụda, nguzogide ujo na arụmọrụ mgbochi nje.Ya mere, a na-eji ya dị ka nkwakọ ngwaahịa, ihe mkpuchi ụda, ihe nzacha.
Plastic polyurethane siri ike bụ ìhè dị arọ, magburu onwe ya na mkpuchi ụda na ikpo ọkụ ọkụ, nguzogide kemịkalụ, ezigbo ọkụ eletrik, nhazi dị mfe, na ntinye mmiri dị ala.A na-ejikarị ya eme ihe n'iwu ụlọ, ụgbọ ala, ụlọ ọrụ ụgbọ elu, ihe nhazi ihe mkpuchi okpomọkụ.
Ịrụ ọrụ nke polyurethane elastomer dị n'etiti plastik na roba, mmanụ na-eguzogide mmanụ, mkpuchi mkpuchi, obere okpomọkụ na-eguzogide, ịka nká, ike siri ike na elasticity.A na-ejikarị eme ihe na ụlọ ọrụ akpụkpọ ụkwụ na ụlọ ọrụ ahụike.A pụkwara iji polyurethane mee ihe ntanye, mkpuchi, akpụkpọ anụ sịntetik, wdg.
Polyurethane pụtara na 1930.Mgbe ihe fọrọ nke nta ka ọ bụrụ afọ 80 nke mmepe teknụzụ, ejirila ihe a mee ihe n'ọtụtụ ebe n'ihe gbasara ime ụlọ, ihe owuwu, ihe ndị dị mkpa kwa ụbọchị, ụgbọ njem, na ngwa ụlọ.
Uru: PVC siri ike bụ otu n'ime ihe ndị a na-ejikarị plastik eme ihe.Ihe PVC bụ ụdị ihe na-adịghị kristal.
N'iji ya eme ihe n'ezie, a na-agbakwunye ihe PVC na stabilizers, lubricants, ihe enyemaka inyeaka, pigmenti, mmetụta mmetụta na ihe mgbakwunye ndị ọzọ.
Ihe PVC enweghị ọkụ, ike dị elu, nguzogide ihu igwe na nkwụsi ike geometric mara mma.
PVC nwere ike iguzogide oxidants, na-ebelata ndị ọrụ na acid siri ike.Otú ọ dị, ọ nwere ike imebi ya site na acids oxidizing gbadoro anya, dị ka sulfuric acid na-etinye uche na nitric acid, na ọ dịghị mma maka ịkpọtụrụ hydrocarbons aromatic na chlorinated hydrocarbons.
Ọdịmma: Njirimara eruba nke PVC adịghị mma, usoro usoro ya dịkwa warara.Karịsịa, ihe ndị dị na PVC nwere nnukwu ibu molekụla na-esikwu ike ịhazi (ihe ndị dị otú ahụ na-achọkarị ịgbakwunye mmanu iji meziwanye àgwà mmiri), ya mere, a na-ejikarị ihe PVC nwere obere ihe dị arọ.
Mbelata nke PVC dị ala, n'ozuzu 0, 2 - 0, 6%.
PVC dị mfe ịhapụ gas na-egbu egbu na usoro ịkpụzi.
Uru nylon:
1. Ike igwe dị elu, ịdị mma dị mma, ike dị elu na ike mkpakọ.Ụdị ike dị iche iche dị elu karịa nke ígwè, na ike mgbagwoju anya dị ka nke ígwè, ma isi ike ya dị ntakịrị karịa nke ígwè.Ike ike dị nso na ike mkpụrụ, ihe karịrị okpukpu abụọ dị elu karịa ABS.Ike nnabata nke mmetụta na ịma jijiji nrụgide siri ike, na ike mmetụta dị elu karịa nke plastik nkịtị, ma dị mma karịa nke resin acetal.
2. The ike ọgwụgwụ na-eguzogide bụ pụtara ìhè, na akụkụ ka nwere ike ịnọgide na-enwe mbụ n'ibu ike mgbe ugboro ugboro ekwe.A na-ejikarị PA eme ihe n'ọnọdụ ebe mmetụta ike ọgwụgwụ nke oge a na-enwekarị aka na-ebuwanye elu na rims ọgbara ọhụrụ rọba pụtara nke ukwuu.
3. High softening point and heat resistance (dị ka naịlọn 46, elu crystalline naịlọn nwere elu thermal deformation okpomọkụ, nke a pụrụ iji ruo ogologo oge n'okpuru 150 ℃. Mgbe iko eriri mkwado, PA66 nwere thermal deformation okpomọkụ nke ihe karịrị 150 ℃). 250 ℃).
4. Elu dị nro, obere ọnụọgụ esemokwu, na-eguzogide ọgwụ.Ọ na-ete mmanụ onwe ya ma nwee obere mkpọtụ mgbe ejiri ya dị ka ihe eji arụ ọrụ na-ebugharị.Enwere ike iji ya na-enweghị mmanu mgbe mmetụta esemokwu adịghị elu;Ọ bụrụ na mmanụ mmanye dị mkpa n'ezie iji belata esemokwu ma ọ bụ nyere aka ikpo ọkụ, mmiri, mmanụ, griiz, wdg nwere ike ịhọrọ.Ya mere, dị ka akụkụ nnyefe, ọ nwere ogologo ndụ ọrụ.
5. Ọ na-eguzogide corrosion, alkali na ọtụtụ mmiri mmiri nnu, acid na-adịghị ike, mmanụ engine, mmanụ ụgbọala, aromatic hydrocarbon ogige na n'ozuzu solvents, inert ka aromatic ogige, ma ọ bụghị eguzogide ike acids na oxidants.Ọ nwere ike iguzogide mmebi nke mmanụ ụgbọala, mmanụ, abụba, mmanya, alkali na-adịghị ike, wdg ma nwee ikike mgbochi ịka nká.Enwere ike iji ya dị ka nkwakọ ngwaahịa maka mmanụ mmanụ, mmanụ ụgbọala, wdg.
Ihe ọghọm:
1. Mmiri na-adịghị mma na nkwụsi ike nke akụkụ.
2. Nguzogide na-adịghị mma na obere okpomọkụ.
3. The antistatic onwunwe dara ogbenye.
4. Ogbenye okpomọkụ na-eguzogide.
Oge nzipu: Feb-04-2023