Polyisobutylene CAS 9003-27-4
ʻO Polyisobutylene (PIB, CAS 9003-27-4) kahi polymer linear saturated i loaʻa ma o ka polymerization cationic o ka isobutylene monomer. ʻAʻohe ona ʻawahia, ʻaʻohe ona ʻala, paʻa loa, ea paʻa loa, insulating kiʻekiʻe, a loli kona ʻano mai kahi wai viscous → semi-solid → rubber elastomer i ka piʻi ʻana o ke kaumaha molekala.
Kūpaʻa loa i ka ʻelemakule a me ke kūpaʻa kemika
ʻO ka saturation kaulahao piha: kū i ka wela, ka oxygen, ka ozone, nā kukuna ultraviolet, nā waikawa, nā alkalis a me nā paʻakai, ʻaʻole ia e hōʻino a lilo paha i mea palupalu no ka manawa lōʻihi
Paʻa wela: hiki ke hoʻohana ʻia no ka manawa lōʻihi ma -50 ℃ a i 150 ℃, me kahi kiko uila kiʻekiʻe a me ka lapalapa haʻahaʻa
ʻO ke ea kiʻekiʻe + ka pale kiʻekiʻe + ka permeability haʻahaʻa
Paʻa loa ka ea: nā waiwai pale maikaʻi loa e kūʻē i ka wai, ke kinoea a me ka mahu, ʻoi aku ka maikaʻi ma mua o ka laholio maʻamau
ʻO ka pale uila maikaʻi: ke kū'ē nui ʻana, ka pohō dielectric haʻahaʻa, kūpono no nā kaula/sila uila
Palekana a ʻaʻohe ʻawahia + kūlike ākea
Papa meaʻai FDA: ʻaʻohe mea ʻawahia, ʻaʻohe hoʻonāukiuki, hiki ke hoʻohana ʻia i ka nau ʻana i ka gum, nā mea hoʻonani, nā mea hoʻohui lāʻau lapaʻau
Hoʻohuihui ʻia me nā hydrocarbons/rubber/resin: maʻalahi ke hoʻohui a hoʻololi, e hoʻomaikaʻi ana i ka viscosity, ka maʻalahi a me ke kūpaʻa ʻana i ka wā.
| Mea | Kūlana Maʻamau |
| helehelena | Wai moakāka, wai mānoanoa |
| Kala, APHA | 40 |
| Ka Umekaumaha Kūikawā @15.6 Deg C | 0.88-0.89 |
| ʻO ka mānoanoa@100 Deg C, cSt | 200-260 |
| Wahi hoʻāla (COC), Deg C (Min) | 190 |
| Mw (ʻAwelike helu) | 900-1000 |
| Ka Waiwai Hoʻopau (Max), mg o KOH/g | 0.02 |
| Ka nui o ka wai (Max), ppm | 40 |
PIB kaumaha molekala haʻahaʻa (Mw < 10,000, wai mānoanoa)
Nā Lubricants / nā mea hoʻohui wahie: thickening, anti-gelling, anti-wear, sealing a me ka pale ʻana i ka leak
Nā mea hoʻopili / mea hoʻopaʻa: mea hoʻopili koʻikoʻi i ke kaomi, ka ʻōpala butyl i hoʻololi ʻia, mea hoʻopaʻa wai ʻole, mea hoʻopaʻa puka makani kaʻa
Nā mea hoʻonani / huahana nani: lipstick / lip balm (moisturizing me ka ʻole o ka greasiness), kirīmi (e laka ana i ka makū a hana i kahi kiʻiʻoniʻoni), pani no ka squalane
ʻAi: ke kumu nau ʻana i ka gum (hoʻomaikaʻi i ka nau ʻana, pale i ka pipili ʻana o ka niho)
2) PIB kaumaha molekala waena (Mw 10,000 - 100,000, hapa-paʻa / laholio palupalu)
Hoʻololi ʻana i ka laholio: acrylonitrile / chloroprene rubber plasticizer, e hoʻoikaika ana i ke kūpaʻa ʻaila a me ka paʻa ʻana o ka ea
Nā kaula / uwea: impregnation insulation, ʻūpā wai ʻole, uhi pale i ka wā
Nā uhi / ʻapala: uhi anti-corrosion, hoʻololi ʻapala (anti-cracking, anti-aging)
3) PIB kaumaha molekala kiʻekiʻe (Mw > 100,000, elastomer e like me ka laholio)
Laho kūikawā: kaila kūloko paʻa ea kiʻekiʻe, ʻāpana sila hakahaka, gasket anti-kahiko
Hoʻololi plastik: hoʻoikaika PP/PE, hoʻoikaika i ke kūpaʻa hopena a me ke kūpaʻa ʻana i ka wā
• Ka Hoʻopili Maʻamau: 25 kg/ʻeke; 25 kg/pahu
• MOQ: e hōʻoia ʻia e ka papa a me ka wahi i manaʻo ʻia
• Manawa Alakaʻi: e hōʻoia ʻia e ka nui o ke kauoha a me ka papa hana hana
• Hoʻouna: loaʻa nā koho kai / ea / wikiwiki
• E mālama i kahi anu, maloʻo, a me kahi ea maikaʻi.
• E pani pono i ka ipu a pale ʻia mai ka makū.
• E pale i ka lā pololei, ka wela, a me ke ahi ākea.
• E hahai i ke alakaʻi SDS no nā mea kūpono ʻole.
