Ihame ry'ingenzi ryo guhitamo ibikoresho bya TPU kugira ngo bikore nezaPPFni uguhitamo Aliphatic TPU. Igena by'umwihariko ubushobozi bwa firime bwo kudahinduka umuhondo, kuramba kwayo, n'imikorere yayo muri rusange - iri ni ryo tandukaniro ry'ingenzi ugereranyije n'uburyo TPU ihumura neza.
Aliphatic vs. Aromatic: "Itegeko rya Zahabu" ryo Guhitamo Ibintu
Ihame rya mbere ni iri: Gukunda Aliphatic TPU, irinde Aromatic TPU. Byombi bigizwe n'ibice bikomeye n'ibice byoroshye, ariko ubwoko bwa diisocyanate mu gice gikomeye butanga itandukaniro rikomeye kuriPorogaramu za PPF.
| Kugereranya | TPU ya Aliphatic irasabwa | TPU ihumura neza ntiyemerewe |
|---|---|---|
| Imiterere y'Ubutabire | Nta mpeta za benzene ziboneka byoroshye; ntizihinduka mu buryo busanzwe. | Irimo impeta za benzene zituma zikora ogisijeni iyo zihuye n'imiraba ya UV. |
| Ubudahangarwa bw'umuhondo | Ni byiza cyane. Inshuro zigera kuri eshanu kurusha aromatike; ΔYI nkeya nyuma y'amasaha 3000 yo kwibasirwa n'imirasire ya UV. | Bibi cyane. Ihinduka umuhondo vuba bitewe n'imirasire y'izuba, akenshi igaragara nk'umuhondo mu mezi 6-12. |
| Ubudahangarwa bw'ikirere | Irakomeye cyane. Irarwanya imirasire ya UV igihe kirekire, ubushyuhe bwinshi, n'ubushuhe. | Irakennye. Ishobora gusaza no kumera nabi hanze. |
| Porogaramu z'ibanze | PPF yo mu rwego rwo hejuru, indege, ubuvuzi, nibindi. | Inkweto, ibikoresho by'inganda, ibyuma byo mu nzu aho ikirere kidahindagurika cyane. |
| Ikiguzi | Hejuru. 30-50% bihenze kurusha aromatic. | Hasi. |
Muri make: Kugira ngo urebe neza ko ibara riramba kandi nta muhondo uhinduka, ugomba guhitamo Aliphatic TPU.
Guhitamo ibice byoroshye kuri AliphaticTPU: Ibande kuri Polycaprolactone
Muri TPU ya aliphatic, ubwoko bwa polyol (igice cyoroshye) burushaho kugena imbaraga n'uburambe bw'umubiri.
| Ubwoko bwa TPU (Igice cyoroshye) | Ibiranga by'ingenzi n'ibyiza byabyo | Imbogamizi/Ibibazo by'ingenzi | Ibikwiriye PPF |
|---|---|---|---|
| Polycaprolaktone | Ifite imbaraga nyinshi kandi idapfa gushwanyagurika (nk'iya polyester) hamwe n'ubudapfa bwo gushwanyagurika neza (nk'iya polyether). | Igiciro kiri hejuru; gikunze gukoreshwa mu bicuruzwa by'ingenzi bigezweho. | (Byakunzwe cyane). Ni amahitamo meza ku birango bikomeye bya PPF, bihuza kuramba igihe kirekire n'uburinzi bwo ku rwego rwo hejuru. |
| Polycarbonate | Ihindagurika ry'ikirere neza cyane, imbaraga nziza no kurwanya hydrolysis. | Igiciro kiri hejuru cyane; kigarukira gusa ku bikorwa byihariye kandi bisaba imihindagurikire y'ikirere ikabije. | (Ni byiza cyane). Imikorere myiza cyane, ariko ikiguzi kibuza ikoreshwa ryabyo gukwirakwira hose. |
| Polyeteri | Irwanya hydrolysis. Ibungabunga imiterere yayo neza cyane mu bidukikije bikonje kandi bigwa imvura. | Ingufu nke za mekanike - ubushobozi bwo gucika/gutobora buri hasi gato ugereranyije na polyester. | (Amahirwe yo mu bihe). Ni nziza ku binyabiziga biri ahantu hahora hatose/harangwa n'ubushuhe. |
| Polyester | Umwami w'imbaraga z'umubiri. Ingufu nziza cyane zo gukurura, kurwanya gushwanyagurika, imbaraga zo gucika. | Ubudahangarwa bubi bwo guhinda amazi. Imibanire ya ester irangirika iyo hari ubushuhe, bigatuma icikagurika ndetse igacika uko igihe kigenda gihita. | (Ntibisabwa). Nubwo imbaraga za mbere ari nyinshi, kudakora neza kwa hydrolysis ni ikibazo gikomeye kuri PPF. |
Inama ku guhitamo:
- Amahitamo meza: Aliphatic + Polycaprolactone TPU. Ifatwa nk' "uruvange rwa zahabu" rwa PPF yo ku rwego rwo hejuru, itanga uburinzi bwiza kandi iramba igihe kirekire.
- Ishingiye ku bidukikije: Ku binyabiziga biri mu turere duhora dutose/dufite ubushuhe bwinshi, polyether itanga ubudahangarwa bwiza bwo kurwanya hydrolysis.
- Itondere: Hari PPF zimwe na zimwe zihendutse zikoresha aromatic + polyester TPU. Nubwo zihendutse, zifite ibyago byinshi byo guhinduka umuhondo no gushonga – ntibyemewe.
Igihe cyo kohereza ubutumwa: 15 Mata 2026