Ho kopanya hlooho ea lisebelisoa tsa polyurethane elastomer: ho kopanya ho kopanya, ho kopanya ka ho lekana.U sebelisa mofuta o mocha oa valve ea ente, tekanyo ea vacuum e ntle ho netefatsa hore sehlahisoa ha se na li-bubble tsa macroscopic.Peista ea mebala e ka eketsoa.Hlooho ea ho kopanya e na le molaoli a le mong bakeng sa ts'ebetso e bonolo.Ho boloka likarolo le taolo ea mocheso: Tanka ea setaele sa Jacket e nang le gauge ea pono.Li-gauge tsa khatello ea dijithale li sebelisoa bakeng sa taolo ea khatello le likarolo / boleng bo tlase ba alamo.Li-heaters tse hanyetsanang li sebelisetsoa ho laola mocheso oa motsoako.Tanka e na le sehlaseli ho kopanya thepa ka ho lekana.

Sesebelisoa sa lisebelisoa tsalisebelisoa tsa polyurethane elastomertlhahiso:

1. Ho phophoma ka letlalo le thata-thata: e sebelisoa linthong tse fapaneng tsa thepa ea ka tlung, litulo tsa setulo sa boto, li-armrest tsa setulo sa koloi ea baeti, mesamo ea bate ea ho silila, libate tsa matsoho, libate tse ka morao, mesamo ea litulo tsa bate, mabili a koloi, mesamo ea koloi, bokahare ba koloi le kantle. Lisebelisoa, li-bumper bar, materase a lisebelisoa tsa bongaka le tsa ho buoa, li-headrest, li-cushions tsa lisebelisoa tsa boikoetliso, lisebelisoa tsa lisebelisoa tsa boikoetliso, lithaere tse tiileng tsa PU le letoto le leng;

2. Foam e pholileng le e liehang: mefuta eohle ea lipapali tsa ho bapala butle, lijo tsa maiketsetso tse khutlang butle, materase a khutlang butle, mesamo e tsamaeang butle, mesamo ea sefofane e tsamaeang butle, mesamo ea bana e khutlang butle le lihlahisoa tse ling;

3. Foam e matla e phahameng: lintho tsa ho bapala le limpho, libolo tsa PU, li-cushion tsa PU tse sebetsang hantle haholo, sethuthuthu sa PU sa boleng bo holimo, libaesekele le litulo tsa koloi, liseile tsa lisebelisoa tsa lipapali tsa boikoetliso bo phahameng ba PU, litulo tsa meno tsa PU, PU. hlooho ea bongaka, bethe ea bongaka ea PU e etsang materase, PU high resilience boxing glove liner.

4. Likarolo tsa lirapa tse bonolo le tse thata: letoto la lipitsa tsa lipalesa tsa PU, letoto la lipitsa tsa lipalesa tsa lehong le nang le tikoloho, lipalesa tsa PU simulation le letoto la makhasi, letoto la likutu tsa sefate sa PU, joalo-joalo;

5. Ho tlatsoa ka thata: matla a letsatsi, licheso tsa metsi, liphaephe tsa ho futhumatsa tse kentsoeng ka kotloloho le liphaephe tse koalang mocheso, liphanele tsa polokelo tse batang, liphanele tse sehang, likariki tsa raese tse halikiloeng, liphanele tsa sandwich, mamati a koalang, lihatsetsi tse kenang, lihatsetsi, mamati a thata a foam le lifensetere. , mamati a karache, mabokose a bolokang bocha, letoto la libarele tsa Insulation;

6. Liphutheloana tse bonolo le tse thata tsa tšireletso ea tikoloho: e sebelisoang lihlahisoa tse fapaneng tse senyehang le tsa bohlokoa tsa ho paka le letoto le leng;

7. Foam e thata ea lehong: lekhasi le thata la monyako oa foam, mokhabiso oa meralo oa sekhutlo, mohala o ka holimo, poleiti ea siling, foreimi ea seipone, lebone, sethala sa lerako, sebui, lisebelisoa tsa ho hlapela tse thata tsa foam.

Lisebelisoa tse tala tsa polyurethane elastomers haholo-holo ke mekhahlelo e meraro, e leng oligomer polyols, polyisocyanates le chain extenders (crosslinking agents).Ho phaella moo, ka linako tse ling e le ho eketsa lebelo la ho arabela, ho ntlafatsa ts'ebetso ea ts'ebetso le ts'ebetso ea sehlahisoa, hoa hlokahala ho eketsa mahlahana a metsoako.Ke lisebelisoa tse tala feela tse sebelisoang ha ho etsoa li-saddles tsa polyurethane tse hlalositsoeng ka botlalo ka tlase.

Lihlahisoa tsa polyurethane elastomer li mebala-bala, 'me ponahalo ea tsona e ntle e itšetlehile ka mebala.Ho na le mefuta e 'meli ea li-colorants, lidae tsa tlhaho le li-pigment tsa inorganic.Boholo ba lidae tsa manyolo li sebelisoa lihlahisoa tsa thermoplastic polyurethane, likarolo tse khabisitsoeng le tse ntle tsa ente le likarolo tse tlositsoeng.Ka kakaretso ho na le mekhoa e 'meli ea ho etsa mebala ea lihlahisoa tsa elastomer: e' ngoe ke ho sila lisebelisoa tse thusang tse kang li-pigments le oligomer polyols ho etsa 'mala oa pente ea' mè oa joala, ebe o hlohlelletsa le ho kopanya palo e loketseng ea 'mala oa peista oa' mè oa joala le oligomer polyols ka ho lekana, ebe joale ba chese.Kamora ho felloa ke metsi ka vacuum, e sebetsana le likarolo tsa isocyanate ho hlahisa lihlahisoa, joalo ka li-granules tsa mebala ea thermoplastic polyurethane le lisebelisoa tsa ho penta ka mebala;mokhoa o mong ke ho sila li-additives tse kang li-pigments le oligomer polyols kapa li-plasticizers ka har'a peista ea mebala kapa peista ea mebala, e felisoe ke metsi ka ho futhumatsa le ho hloekisa, ebe e phutheloa hore e sebelisoe hamorao.Ha o sebelisa, eketsa pente e nyane ea 'mala ka har'a prepolymer, hlohlelletsa ka mokhoa o ts'oanang, ebe o arabela ka ketane e kopanyang sehokelo ho lahlela sehlahisoa.Mokhoa ona o sebelisoa haholo ho sistimi ea vulcanization ea MOCA, litaba tsa pigment ka har'a peista ea mebala li ka ba 10% -30%, 'me palo ea tlatsetso ea pente ea mebala sehlahisoa hangata e ka tlase ho 0.1%.

Polymer diol le diisocyanate li entsoe ka li-prepolymers, tse kopantsoeng ka botlalo, tse kentsoeng ka har'a hlobo ka mor'a hore li hlatsoe ka vacuum defoaming, li kenngoa ka har'a hlobo ebe lia phekoloa, ebe li phekoloa ho fumana sehlahisoa:

Ntlha ea pele, tlosa metsi a lisebelisoa tsa polyurethane elastomer tlas'a khatello e fokotsehileng ho 130 ℃, eketsa lisebelisoa tse tala tsa polyester (ka 60 ℃) ka har'a sejana sa karabelo se nang le TDI-100 e kopantsoeng, 'me u kopanye prepolymer ka ho sisinyeha ho lekaneng.Karabelo ea motsoako ke exothermic, 'me ho lokela ho hlokomeloa hore mocheso oa karabelo o lokela ho laoloa ka har'a mefuta e fapaneng ea 75 ℃ ho isa ho 82 ℃, mme karabelo e ka etsoa lihora tse peli.Ka mor'a moo, prepolymer e entsoeng ka maiketsetso e ile ea kenngoa ka ontong ea ho omisa ka mocheso oa 75 ° C, 'me ea tlosoa ka tlas'a vacuum lihora tse peli pele e sebelisoa.

Ebe futhumatsa prepolymer ho 100 ℃, 'me vacuumize (vacuum degree -0.095mpa) ho tlosa li-bubble tsa moea, lekanya mokelikeli o kopanyang MOCA, o chese ka sebōpi sa motlakase ho 115 ℃ ho qhibiliha,' me u apese hlobo ka tokollo e loketseng. Moemeli oa ho futhumatsa pele (100 ℃).), prepolymer e senyehileng e kopantsoe le MOCA e qhibilihisitsoeng, mocheso o kopanyang ke 100 ℃, 'me motsoako o tsosoa ka ho lekana.Ka har'a hlobo e futhumetseng, ha motsoako o sa phalle kapa o sa khomarele letsohong (joaloka gel), koala hlobo ebe o e beha ka har'a vulcanizer bakeng sa ho bopa vulcanization (maemo a vulcanization: mocheso oa vulcanization 120-130 ℃, nako ea vulcanization, bakeng sa kholo e kholo. le Li-elastomers tse teteaneng, nako ea vulcanization e feta 60min, bakeng sa li-elastomers tse nyane le tse tšesaane, nako ea vulcanization ke 20min), kalafo ea post-vulcanization, beha lihlahisoa tse bōpiloeng le tse vulcanized ho 90-95 ℃ (maemong a khethehileng, e ka ba 100). ℃) Tsoela pele ho vulcanize lihora tse 10 ka ontong, ebe u e beha mocheso oa kamore bakeng sa matsatsi a 7-10 ho qeta botsofali le ho etsa sehlahisoa se felileng.