Loaʻa iā TPR nā mea maikaʻi aʻe: (1) Hiki ke hana ʻia e nā mīkini hoʻoheheʻe thermoplastic maʻamau, e like me ka hoʻoheheʻe ʻia ʻana, ka hoʻoheheʻe ʻana, ka hoʻoheheʻe ʻana, ka hoʻoheheʻe ʻana, a me ka hoʻololi ʻana i ka mold;(2) Hiki ke vulcanized me ka mīkini hoʻoheheʻe ʻana i ka pahu, a hiki ke hoʻopōkole ʻia ka manawa mai kahi 20min a emi iho ma mua o 1min;(3) Hiki ke hoʻoheheʻe ʻia a vulcanized e kahi paʻi, me ka wikiwiki kaomi wikiwiki a me ka manawa vulcanization pōkole;(4) Hiki ke hoʻihoʻi pololei ʻia nā ʻōpala i hana ʻia i loko o ke kaʻina hana (e holo ana i nā burrs a me ka hoʻopau ʻana i ka ʻōpala ʻōpala) a hiki ke hoʻihoʻi pololei ʻia nā huahana ʻōpala hope no ka hoʻohana hou ʻana: (5) Hiki ke hoʻohana hou ʻia nā huahana kahiko TPR i hoʻohana hou ʻia e hōʻemi i ka haumia o ke kaiapuni a hoʻonui. ke kumu o ka hana hou ʻana i nā kumuwaiwai;(6) ʻAʻole pono ka vulcanization e mālama i ka ikehu.E lawe i ka hoʻohana ʻana i ka ikehu o ka hose hose kiʻekiʻe ma ke ʻano he laʻana: 188MJ/kg no ka rubber a me 144MJ/kg no TPR, hiki ke hoʻopakele ʻoi aku ma mua o 25% o ka ikehu;(7) He mea nui ka hoʻoikaika ʻana iā ia iho, a ua maʻalahi loa ke ʻano, no laila e hoʻemi nui ʻia ka mana o ka mea hoʻohuihui i ka polymer, a ʻoi aku ka maʻalahi o ka hana maikaʻi i ka haku;(8) Wehe ia i nā ala hou no ka ʻoihana lāʻau a hoʻonui i ke kahua noi o nā huahana lāʻau.ʻO ka hemahema, ʻaʻole i like ka maikaʻi o ka pale wela o TPR e like me ka lāʻau lapaʻau, a emi nui ka waiwai kino me ka piʻi ʻana o ka mahana, no laila ua kaupalena ʻia ke ʻano o ka noi.I ka manawa like, ʻoi aku ka liʻiliʻi o ka deformation compression, resilience a me ka lōʻihi ma mua o ka rubber, a ʻoi aku ka kiʻekiʻe o ke kumukūʻai ma mua o ka lāʻau like.Eia naʻe, ma ka laulā, ʻoi aku ka maikaʻi o ka TPR, ʻoiai ke hoʻomaikaʻi mau nei nā hemahema.Ma ke ʻano he ʻano hou o ka hoʻōla ʻana i ka ikehu a me ke kaiapuni-friendly raw material raw, TPR loaʻa kahi manaʻo hoʻomohala hoʻohiki.
ʻO Polyurethane (PU), ka inoa piha he polyurethane, he pūhui polymer.Ua hanaʻia e Otto Bayer i ka makahiki 1937. Ua māheleʻia ka polyurethane iʻelua mauʻano: polyester type a polyether type.Hiki ke hana ʻia i loko o nā plastic polyurethane (ʻo ka nui o nā plastics foamed), polyurethane fibers (kapa ʻia spandex ma Kina), polyurethane rubbers a me nā elastomers.
ʻO ka polyurethane palupalu ka mea nui i ka thermoplastic linear structure, ʻoi aku ka maikaʻi o ke kūpaʻa, ke kūpaʻa kemika, ka resilience a me nā waiwai mechanical ma mua o nā mea PVC foam, a ʻoi aku ka liʻiliʻi o ka deformation compression.Loaʻa iā ia ka insulation thermal maikaʻi, ke kani ʻana o ke kani, ke kūpaʻa haʻalulu a me ka hana anti-virus.No laila, hoʻohana ʻia ʻo ia e like me ka hoʻopili ʻana, ka insulation kani, ka mea kānana.
He māmā ke kaumaha o ka plastic polyurethane rigid, maikaʻi loa i ka hoʻohaʻahaʻa leo a me ka wela wela, ka pale kemika, nā waiwai uila maikaʻi, ka hana maʻalahi, a me ka haʻahaʻa o ka wai.Hoʻohana nui ʻia ia i ke kūkulu ʻana, kaʻa, ʻoihana mokulele, thermal insulation structural material.
ʻO ka hana o ka polyurethane elastomer ma waena o ka plastic a me ka rubber, ke kū'ēʻana i kaʻaila, ke kū'ē kū'ē, ka haʻahaʻa haʻahaʻa haʻahaʻa, ke kūʻana o kaʻelemakule, ka paʻakikī kiʻekiʻe a me ka elasticity.Hoʻohana nui ʻia i ka ʻoihana kāmaʻa a me ka ʻoihana lapaʻau.Hiki ke hoʻohana ʻia ka polyurethane e hana i nā adhesives, coatings, synthetic leather, etc.
Ua puka mai ka Polyurethane i ka makahiki 1930.Ma hope o kahi kokoke i 80 mau makahiki o ka hoʻomohala ʻenehana, ua hoʻohana nui ʻia kēia mea ma ke kahua o ka lako hale, ke kūkulu ʻana, nā mea e pono ai i kēlā me kēia lā, ka lawe ʻana, a me nā mea pono home.
Pōmaikaʻi: ʻO Rigid PVC kekahi o nā mea i hoʻohana nui ʻia.ʻO ka mea PVC kahi ʻano mea ʻole crystalline.
Ma ka hoʻohana maoli, hoʻohui pinepine ʻia nā mea PVC me nā stabilizers, lubricants, auxiliary processing agents, pigments, impact agents a me nā mea hoʻohui ʻē aʻe.
ʻAʻole hiki ke hoʻomālamalama ʻia nā mea PVC, ikaika kiʻekiʻe, kū i ka wā a me ke kūpaʻa geometric maikaʻi loa.
He kūpaʻa ikaika ka PVC i nā mea hoʻoheheʻe, nā mea hoʻemi a me nā waikawa ikaika.Eia nō naʻe, hiki ke hoʻopau ʻia e nā ʻakika oxidizing concentrated, e like me ka sulfuric acid concentrated a me ka nitric acid concentrated, a ʻaʻole kūpono no ka hoʻopili ʻana i nā hydrocarbons aromatic a me nā hydrocarbons chlorinated.
Nā pōʻino: He ʻilihune loa nā hiʻohiʻona kahe o PVC, a he haiki loa kona pae kaʻina.ʻO ka mea nui, ʻoi aku ka paʻakikī o ka hana ʻana i nā mea PVC me ke kaumaha molekala nui (pono nā mea e hoʻohui i ka lubricant no ka hoʻomaikaʻi ʻana i nā ʻano kahe), no laila hoʻohana mau ʻia nā mea PVC me ke kaumaha liʻiliʻi.
He haʻahaʻa loa ka emi ʻana o PVC, maʻamau 0, 2 - 0, 6%.
He maʻalahi ka PVC e hoʻokuʻu i ke kinoea ʻawaʻawa i ke kaʻina hana.
ʻO ka pono naylon:
1. ʻO ka ikaika mechanical kiʻekiʻe, ka paʻakikī maikaʻi, ka tensile kiʻekiʻe a me ka ikaika compressive.ʻOi aku ka kiʻekiʻe o ka ikaika tensile kikoʻī ma mua o ka metala, a ua like ka ikaika compressive kikoʻī me ka metala, akā ʻoi aku ka liʻiliʻi ma mua o ka metala.ʻO ka ikaika tensile kokoke i ka ikaika hua, ʻoi aku ma mua o ʻelua mau kiʻekiʻe ma mua o ABS.ʻOi aku ka ikaika o ka hoʻopili ʻana o ka hopena a me ka vibration stress, a ʻoi aku ka kiʻekiʻe o ka ikaika o ka hopena ma mua o nā plastics maʻamau, a ʻoi aku ka maikaʻi ma mua o ka resin acetal.
2. He kūlana koʻikoʻi ke kūpaʻa luhi, a hiki i nā ʻāpana ke hoʻomau i ka ikaika mechanical mua ma hope o ke kulou mau ʻana.Hoʻohana pinepine ʻia ka PA i nā kūlana i ʻike maopopo ʻia ka hopena luhi o nā lima escalator maʻamau a me nā rim paikikala plastik hou.
3. Kiʻekiʻe softening wahi a me ka wela kū'ē (e like me ka nylon 46, kiʻekiʻe crystalline nylon i ka wela wela deformation kiʻekiʻe, hiki ke hoʻohana 'ia no ka manawa lōʻihi ma lalo o 150 ℃. Ma hope o aniani fiber hooikaika, PA66 i ka wela deformation wela o ka oi aku mamua o 250 ℃).
4. Ka ili maʻemaʻe, liʻiliʻi friction coefficient, aahu-pale.He lubricating ponoʻī a he haʻahaʻa ka walaʻau ke hoʻohana ʻia ma ke ʻano he ʻāpana mechanical movable.Hiki ke hoʻohana ʻia me ka ʻole o ka lubricant inā ʻaʻole kiʻekiʻe ka hopena friction;Inā makemake maoli ka lubricant e hoʻemi i ka friction a i ʻole ke kōkua ʻana i ka wela, hiki ke koho ʻia ka wai, ka aila, ka momona, a me nā mea ʻē aʻe.No laila, ma ke ʻano he mea hoʻouna, he lōʻihi kona ola lawelawe.
5. He mea kū'ē i ka corrosion, alkali a me ka nui o ka paʻakai wai, nāwaliwali kaʻakika, engine aila, gasoline, aromatic hydrocarbon pūhui a me nā mea hoʻoheheʻe maʻamau, inert i nā meaʻala, akā,ʻaʻole kū'ē i nāʻakika ikaika a me nā oxidants.Hiki iā ia ke pale aku i ka erosion o ka ʻaila, ka momona, ka waiʻona, ka alkali nāwaliwali, a me nā mea ʻē aʻe a loaʻa iā ia ka mana anti-kahiko.Hiki ke hoʻohana ʻia e like me ka hoʻopili ʻana i nā mea no ka lubricating aila, wahie, etc.
Nā hemahema:
1. Poor wai absorption a me dimensional paʻa.
2. Ke kū'ē maikaʻiʻole i ka mahana wela.
3. He ʻilihune ka waiwai antistatic.
4. ʻAʻohe wela wela.
Ka manawa hoʻouna: Feb-04-2023