Intangiriro ku bipimo byo kurwanya hydrolysis mu bikoresho bya TPU

Ubudahangarwa bwa TPU mu gushonga kwa hydrolysisyerekeza ku bushobozi bwayo bwo kurwanya "ibitero" bitewe n'ubushuhe no gukumira kwangirika k'imikorere. Ubu bushobozi bugenwa n'imiterere y'ibinyabutabire n'inyongera za TPU, kandi ni ikimenyetso cy'ingenzi cyo gusuzuma ko irambye mu bidukikije bikonje cyangwa munsi y'amazi.

Ikintu cy'ingenzi: Ishingiye kuri polyester ugereranyije naTPU ishingiye kuri polyether

Itandukaniro ry'ibanze mu kurwanya hidrolisike rituruka ku miterere y' "igice cyoroshye" kiri mu muyoboro wa molekile.

• TPU ishingiye kuri poliyester: Imigozi ya ester iri mu muyoboro wa molekile ishobora kwangirika cyane, bigatuma imikorere yayo igabanuka cyane mu bidukikije bishyushye kandi bikonje. Kubera iyo mpamvu, ifite ubudahangarwa buke bwo kwangirika kw'amazi.
• TPU ishingiye kuri Polyether: Imigozi ya ether iri mu muyoboro wa molekile irahamye kandi irwanya hydrolysis, itanga ubudahangarwa bwiza bwa hydrolysis. Ibi bituma iba amahitamo meza yo gukoreshwa munsi y'amazi cyangwa ahantu hafite ubushuhe bwinshi.

Muri make: Ku bijyanye n'ikoreshwa risaba gukorana igihe kirekire n'amazi cyangwa ahantu hakonje, TPU ishingiye kuri polyether igomba gushyirwa imbere.

Ibipimo by'Isuzuma ry'Ishingiro

Ubudahangarwa bwa hydrolysis bukunze gusuzumwa binyuze mu bizamini byihuse byo gusaza, hibandwa ku bipimo by'ingenzi bikurikira:

• Igipimo cyo Kugumana Ingufu zo Gufata: Ijanisha ry'ingufu zo gufatana zigumana nyuma yo gusaza ugereranije n'agaciro k'umwimerere. Kugumana cyane bigaragaza ko habayeho ubudahangarwa bwiza bwo gushonga kwa hydrolysis; ubusanzwe inganda zikenera ≥80%.
• Impinduka mu burebure mu gihe cyo kuruhuka: Ipima impinduka mu bworoherane bw'ibikoresho. Impinduka nto zigaragaza imikorere ihamye kurushaho.
• Impinduka mu bukomere: Igaragaza impinduka mu bukomere bw'ubuso. Impinduka nto zigaragaza ko ibikoresho byinshi bihamye neza.
• Isura Igaragara: Reba niba ubuso bw'icyitegererezo bugaragaza ibimenyetso byo kwangirika nko kwangirika, gucika udusebe, cyangwa gushwanyagurika.

Uburyo n'Amahame byo Gupima

Ubudahangarwa bwa hydrolysis bupimwa binyuze mu bipimo byihuse byo gusaza. Ibipimo by'ingenzi birimo:

• ISO 4611: Amahame mpuzamahanga yo gusaza kwa pulasitiki.
• ASTM D570: Uburyo busanzwe bwo gupima amazi ya plastiki.
• DIN 53366: Ikoreshwa mu gushyira mu byiciro uburyo ibintu bihora bihindagurika hakoreshejwe hydrolysis.

Ibipimo bisanzwe ni 70°C / 95% Ubushuhe (RH) mu masaha amagana kugeza ku bihumbi, hamwe n'ingero zisanzwe kugira ngo harebwe impinduka mu mikorere.

Uburyo bwo kunoza uburyo bwo kurwanya hydrolysis

Niba ubushobozi bwo kurwanya hidrolisisi bwa TPU ishingiye kuri polyester budahagije, uburyo bukurikira bushobora gukoreshwa:

1. Ongeraho Ibitera Guhagarara kwa Hydrolysis: Bumwe mu buryo bwiza cyane ni ugushyiramo polycarbodiimide (PCD) cyangwa ibindi bintu birwanya hydrolysis. Ibi "bisana" imiyoboro ya molekile yacitse kandi bigatinda kwangirika.
2. Kunoza Imiterere ya Molekyuli: Guhitamo polyole za polyester zifite uburemere bwinshi bwa molekyuli, iminyururu miremire, cyangwa amashami y’imitsi nabyo bishobora kunoza uburyo hydrolysis ihamye ku rugero runaka.

Incamake n'inama zo guhitamo

• Amahitamo y'ingenzi: Mu bidukikije bifite ubushuhe, shyira imbere TPU ishingiye kuri polyether.
• Ishingiro ry'Isuzuma: Gusuzuma mu buryo bw'imibare amanota atandukanye ya TPU ugereranya igipimo cyo kugumana imbaraga zo gukurura n'andi makuru yavuye mu bizamini byo gusaza.
• Ingano ni ingenzi: Menya ko TPU ishingiye kuri polyether ishobora kugira imbaraga nkeya za mekanike n'ubushyuhe ugereranije n'ingano za mekanike zishingiye kuri polyester. Ingano iri hagati yo kudakoresha hydrolysis n'imiterere ya mekanike igomba kugerwaho.

Gusobanukirwa ibi bipimo bizagufasha guhitamo ibikoresho bya TPU bikwiye ku gicuruzwa cyawe, bitume wiringira igihe kirekire aho kigenewe.

IbyerekeyeYantai Linghua New Material Co., Ltd.

Yantai Linghua New Material Co., Ltd. ifite ubushobozi bukomeye mu bushakashatsi no mu mikorere mu bijyanye na TPU ishingiye kuri polyether. Nk'umucuruzi w'umwuga wa TPU, washinzwe mu 2010, iyi sosiyete yakuze ihinduka ikigo cyuzuye cy'inganda gihuza ubucuruzi bw'ibikoresho fatizo, ubushakashatsi no mu mikorere, ndetse n'umusaruro n'ibicuruzwa.

Ibicuruzwa byayo bya TPU bishingiye kuri polyether, bishingiye ku miterere ya ether mu muyoboro wa molekile, bitanga ubushobozi bwo kurwanya hidrolisike neza, ubushobozi bwo gukora neza mu bushyuhe buri hasi (kugeza kuri -40°C no munsi yayo), kandi birwanya indwara ya mildew cyane. Byongeye kandi, ibi bicuruzwa bifite imbaraga nyinshi za mekanike, ubushobozi bwo guhangana n'ibintu bihumanya ikirere neza, kandi bikanatunganywa neza, mu gihe byujuje ibisabwa ku rwego mpuzamahanga birimo REACH, RoHS, na FDA. Bikoresheje iyi miterere, ibikoresho bya TPU bya polyether bya Linghua New Materials bikoreshwa cyane mu nsinga n'insinga, ibikoresho by'imodoka, imiyoboro y'umuriro, imiyoboro n'imiyoboro, hamwe n'inkweto - ibikoresho by'inganda n'abaguzi bisaba ubushobozi bwo guhangana n'ikirere cyane no kudahungabana igihe kirekire.