Kusanganisa musoro we polyurethane elastomer midziyo: kusanganisa kusanganisa, kusanganisa zvakaenzana.Uchishandisa rudzi rutsva rwejekiseni vharafu, iyo vacuum degree yakanaka kuve nechokwadi chekuti chigadzirwa hachina macroscopic bubbles.Paste yemavara inogona kuwedzerwa.Musoro wekusanganisa une mutongi mumwe chete wekushanda nyore.Chikamu chekuchengetedza uye tembiricha yekudzora: Jacket style tank ine yekuona nhanho geji.Digital pressure gauges inoshandiswa kudzora dzvinyiriro uye chimiro/zvishoma alarm value.Resistive heaters inoshandiswa pakugadzirisa tembiricha yechikamu.Iyo tangi yakashongedzerwa ine inosimudzira kusanganisa zvinhu zvakaenzana.

Equipment kushandiswa kwepolyurethane elastomer midziyokugadzirwa:

1. Semi-rigid self-skin foaming: inoshandiswa mumidziyo yakasiyana siyana yefenicha, board chair armrests, passenger seat seat armrests, masaja ebhavhu yekugezera mapillow, tabhu yekugezera armrests, tabhu yekumashure, macushion ezvigaro zvebhavhu, mavhiri emota, makushion emota, mukati memota nekunze. Zvishandiso, mabhampa mabhawa, matiresi emidziyo yekurapa uye yekuvhiya, machira emusoro, macushion emidziyo yekusimbisa chigaro, zvishongedzo zvemidziyo yekusimbisa muviri, matai akasimba ePU uye mamwe akateedzana;

2. Foam yakapfava uye inononoka: marudzi ose ematoyi anononoka, zvokudya zvekugadzira zvinononoka, mattresses anononoka, mapiro anononoka, mapiro ekufambisa ndege anononoka, mapiro evana anononoka uye zvimwe zvigadzirwa;

3. Furo rakapfava rakapfava: matoyi nezvipo, PU mabhora, PU high-resilience furniture cushion, PU high-resilience motorcycle, bhasikoro, uye macushion ezvigaro zvemotokari, PU high-resilience fitness sports equipment machira, PU dental chair backrests , PU. Medical headrest, PU yekurapa mubhedha kugadzira metiresi, PU yakakwirira resilience boxing girovhosi liner.

4. Zvikamu zvakapfava uye zvakaoma zvebindu: PU flower pot ring ring series, zvakatipoteredza huni bran flower pot series, PU simulation maruva uye mashizha akatevedzana, PU simulation muti trunk series, nezvimwewo;

5. Kuzadza kwakasimba: simba rezuva, mahita emvura, mapombi akanyatsovigwa akavigwa uye pombi dzekudzivirira dzinopisa, mapaneru ekuchengetedza, mapaneru ekucheka, ngoro dzemupunga dzakabikwa, masangweji emagonhi, magonhi ekuvharisa, mafiriji anopindirana, mafiriza anopindirana, magonhi akaomarara efuro nemahwindo. , magonhi egaraji, mabhokisi ekuchengetedza matsva, Insulation barrel series;

6. Yakapfava uye yakaoma yekuchengetedzwa kwenzvimbo inodzivirira buffer kurongedza: inoshandiswa mumhando dzakasiyana dzisina kusimba uye dzakakosha zvigadzirwa zvekurongedza uye zvimwe zvakatevedzana;

7. Zvakaoma kutevedzera huni furo: yakaoma furo gonhi shizha, architectural decoration pakona mutsara, pamusoro mutsetse, sirin'i ndiro, girazi furemu, kenduru, pamadziro sherufu, mutauri, yakaoma furo yokugezera accessories.

Izvo zvigadzirwa zve polyurethane elastomers zvinonyanya mapoka matatu, anoti oligomer polyols, polyisocyanates uye cheni extenders (crosslinking agents).Uye zvakare, dzimwe nguva kuti uwedzere kukurumidza kuita, kuvandudza mashandiro ekugadzirisa uye kuita kwechigadzirwa, zvinodikanwa kuwedzera mamwe maajenti anosanganisa.Izvo chete zvigadzirwa zvinoshandiswa mukugadzirwa kwe polyurethane saddles zvinotsanangurwa zvakadzama pazasi.

Polyurethane elastomer zvigadzirwa zvine mavara, uye kutaridzika kwavo kwakanaka kunoenderana nemavara.Kune marudzi maviri emavara, organic dhayi uye inorganic pigments.Mazhinji e organic dhayi anoshandiswa mu thermoplastic polyurethane zvigadzirwa, zvekushongedza nekunakisa jekiseni zvikamu uye zvikamu zvakasimudzwa.Pane kazhinji nzira mbiri dzekupendera kwezvigadzirwa zve elastomer: imwe ndeyekukuya zvinhu zvinobatsira zvakaita se pigment uye oligomer polyols kuti vagadzire colour paste yaamai doro, wobva wabvongodza nekusanganisa huwandu hwakakodzera hweruvara rwaamai chinwiwa uye oligomer polyols zvakaenzana, uyezve. dzipise.Mushure mevacuum dehydration, inopindirana neisocyanate zvikamu kugadzira zvigadzirwa, senge thermoplastic polyurethane color granules uye mavara paving zvinhu;imwe nzira ndeyekukuya zvinowedzerwa zvakaita se pigment uye oligomer polyols kana plasticizers kuita color paste kana color paste , inopedzwa nemvura nekudziya uye vacuum, uye inoputirwa kuti ishandiswe gare gare.Paunenge uchishandisa, wedzera karuvara kadiki mu prepolymer, kurunga zvakaenzanirana, uye wobva waita neketani-inotambanudza muchinjiko-yekubatanidza mumiriri kukanda chigadzirwa.Iyi nzira inonyanya kushandiswa muMOCA vulcanization system, iyo pigment yemukati muvara paste ingangoita 10% -30%, uye huwandu hwekuwedzera hwekunamira kwemavara muchigadzirwa kazhinji pazasi 0.1%.

Iyo polymer diol uye diisocyanate inogadzirwa kuita prepolymers, iyo yakanyatso kusanganiswa pamwe chete, jekiseni mu mold mushure mevacuum defoaming, jekiseni mu mold uye aporeswa, uye ndokuporeswa kuti vawane chigadzirwa:

Chekutanga, dehydrate the polyurethane elastomer midziyo pasi pekumanikidzwa kwakaderedzwa pa 130 ℃, wedzera dehydrated polyester raw material (pa60 ℃) mugiya rekuita rine yakasanganiswa TDI-100, uye gadzira prepolymer nekukandira kwakaringana.The synthesis reaction is exothermic, uye zvinofanirwa kucherechedzwa kuti tembiricha yekuita inofanirwa kudzorwa mukati meiyo 75 ℃ kusvika 82 ℃, uye maitiro anogona kuitwa kwemaawa maviri.Iyo yakagadzirwa prepolymer yakabva yaiswa muvheni yekuomesa pa75 ° C, uye yakabviswa pasi pevacuum kwemaawa maviri isati yashandiswa.

Wobva wapisa prepolymer kusvika 100 ℃, uye vacuumize (vacuum degree -0.095mpa) kubvisa mabhuru emhepo, kuyera iyo cross-linking agent MOCA, kupisa nechoto chemagetsi pa115 ℃ kunyunguduka, uye kupfekedza mold nekusunungurwa kwakakodzera. mumiririri kuti preheat (100 ℃).), iyo degassed prepolymer inosanganiswa neMOCA yakanyungudutswa, tembiricha yekusanganiswa i100 ℃, uye musanganiswa unomutswa zvakaenzana.Mune preheated mold, kana musanganiswa usingayerere kana kunamatira paruoko (gel-senge), vhara mold woiisa mu vulcanizer yekuumba vulcanization (vulcanization mamiriro: vulcanization tembiricha 120-130 ℃, vulcanization nguva, yakakura. uye Makobvu elastomers, iyo vulcanization nguva inodarika 60min, kune madiki uye akaonda elastomers, iyo vulcanization nguva ndeye 20min), post-vulcanization kurapwa, isa zvigadzirwa zvakaumbwa uye vulcanized pa90-95 ℃ (mune zviitiko zvakakosha, inogona kuva zana. ℃) Ramba uchipisa kwemaawa gumi muchoto, wobva waisa panzvimbo yekupisa kwemazuva 7-10 kuti upedze kuchembera uye kugadzira chigadzirwa chakapedzwa.