Thermoplastic Polyurethane (TPU) ke thepa e feto-fetohang e tsebahalang ka ho tšoarella le ho tiea ha eona. Leha ho le joalo, lits'ebetsong tse ling, ho ka ba le tlhoko ea ho fokotsa boima ba li-granules tsa TPU ha ka nako e ts'oanang ho matlafatsa khanyetso ea abrasion.
Maano a ho fihlela ho fokotsa boima ba TPU le ho ntlafatsa tekano ea ho hanyetsa abrasion.
1. Ho Kopanya le Lisebelisoa tse Bonolo
E 'ngoe ea litsela tse otlolohileng tsa ho fokotsa boima ba TPU ke ka ho e kopanya le thepa e bonolo ea thermoplastic. Likhetho tse tloaelehileng li kenyelletsa TPE (Thermoplastic Elastomers) le limaraka tse tlase tsa TPU.
Khetho e hlokolosi ea thepa e bonolo le karo-karolelano eo e kopantsoeng le TPU ka eona e ka thusa ho fihlela boemo bo lakatsehang ba ho fokotsa boima.
2. Mokhoa o Mocha: Ho Kopanya Likaroloana tsa TPU le Novel Soft Material Si-TPV
Ho kopanya li-granules tsa 85A TPU le SILIKE ho phatlalalitse soft Material Si-TPV (dynamic vulcanizate thermoplastic Silicone-based elastomer), Mokhoa ona o otla teka-tekano e lakatsehang lipakeng tsa phokotso ea boima le khanyetso e eketsehang ea abrasion, ntle le ho senya thepa ea eona e meng e lakatsehang.
Mokhoa oa ho fokotsa ho thatafala ha likaroloana tsa TPU, Foromo le Tlhahlobo:
Ho eketsoa ha 20% Si-TPV ho Hardness ea 85A TPU ho fokotsa boima ho 79.2A
Hlokomela:Lintlha tsa tlhahlobo tse kaholimo ke data ea rona ea tlhahlobo e sebetsang ea lab, 'me e ke ke ea utloisisoa e le boitlamo ba sehlahisoa sena, moreki o lokela ho lekoa ho ipapisitsoe le bona.
Leha ho le joalo, Teko e nang le likarolo tse fapaneng tsa ho kopanya e tloaelehile, ka sepheo sa ho fihlela motsoako o nepahetseng oa bonolo le ho hanyetsa abrasion.
3. Ho Kenyelletsa Li-Filler-Resistant Fillers
Ho matlafatsa khanyetso ea abrasion, litsebi li fana ka maikutlo a ho kenyelletsa li-filler tse khethehileng tse kang carbon black, fiber fibers, silicone masterbatch, kapa silicon dioxide. Li-Fillers tsena li ka matlafatsa thepa ea TPU ea ho hanyetsa.
Leha ho le joalo, ho lokela ho nahanoa ka hloko ka bongata le ho hasana ha li-filler tsena, kaha chelete e ngata haholo e ka ama ho tenyetseha ha thepa.
4. Plasticizers le Softening Agents
E le mokhoa oa ho fokotsa boima ba TPU, Baetsi ba TPU ba ka sebelisa li-plasticizers kapa lisebelisoa tse nolofatsang. Ho bohlokoa ho khetha polasetiki e loketseng e ka fokotsang boima ntle le ho sekisetsa ho hanyetsa abrasion. Li-plasticizers tse tloaelehileng tse sebelisoang le TPU li kenyelletsa dioctyl phthalate (DOP) le dioctyl adipate (DOA). Tlhokomelo e tlameha ho nkoa ho etsa bonnete ba hore polasetiki e khethiloeng e lumellana le TPU 'me ha e ame hampe thepa e meng e kang matla a thata kapa khanyetso ea lik'hemik'hale. Ntle le moo, Tekanyo ea li-plasticizer e lokela ho laoloa ka hloko ho boloka tekano e lakatsehang.
5. Li-Parameters tsa Extrusion le Ts'ebetso ea Ts'ebetso e Ntle
Ho fetola liparamente tsa extrusion le ts'ebetso ho bohlokoa ho fihlelleng motsoako o lakatsehang oa boima bo fokotsehileng le matla a ho hanyetsa abrasion. Sena se kenyelletsa ho feto-fetoha ha maemo joalo ka mocheso, khatello le maemo a pholiso nakong ea extrusion.
Lithempereichara tse tlase tsa extrusion le ho pholisa ka hloko ho ka lebisa ho TPU e bonolo ha o ntse o ntlafatsa ho hasana ha li-filler tse hananang le abrasion.
6. Mekhoa ea ka mor'a ho sebetsa
Mekhoa ea ka mor'a ts'ebetso e kang ho annealing, ho otlolla, kapa esita le phekolo ea holim'a metsi e ka ntlafatsa ho hanyetsa ha abrasion ntle le ho beha boima ba 'mele.
Annealing, haholo-holo, e ka ntlafatsa sebopeho sa kristale sa TPU, sa etsa hore e se ke ea hlola e taboha le ho taboha.
Qetellong, ho fihlela tekano e bobebe ea boima bo fokotsehileng ba TPU le ho ntlafala ha abrasion ke ts'ebetso e nang le likarolo tse ngata. Baetsi ba TPU ba ka eketsa khetho ea thepa, ho kopanya, li-filler tse thibelang abrasion, li-plasticizers, Softening Agents, le taolo e nepahetseng ea liparamente tsa extrusion ho lokisa thepa ea thepa ho ikamahanya le litlhoko tse ikhethang tsa kopo e fanoeng.
Sena ke seo u se hlokang Foromo e Hlōlang e fokotsang TPU Particle Hardness le Ntlafatsa Resistance ea Abrasion!