He aha nā pono o ka polyurethane RUBBER?
(1) Kūleʻa maikaʻi loa: ʻoi aku ka kiʻekiʻe o ke kūpaʻa ʻana ma waena o nā ʻōpala āpau. Hōʻike nā hopena Laboratory he 3 a 5 mau manawa ka pale ʻana o ka UR ma mua o ka lāʻau lapaʻau maoli, a ʻoi aku ka kiʻekiʻe ma mua o 10 mau manawa i nā noi kūpono.
(2) Ka ikaika kiʻekiʻe a me ka elasticity maikaʻi ma ka laulā o Shore A60 a hiki i ka Shore A70 paʻakikī.
(3) Maikaʻi ka cushioning. Ma ka lumi wela, hiki i ka UR damping element ke komo i ka 10% ~ 20% o ka ikehu vibration. ʻO ke kiʻekiʻe o ke alapine vibration, ʻoi aku ka nui o ka hoʻopili ʻana i ka ikehu.
(4) maikaʻi ka aila kū'ē a me ka kemika. He liʻiliʻi ka pili o UR me nā ʻaila mineral non-polar a ʻaʻole hiki ke hoʻopau ʻia i nā aila wahie (e like me ke kerosene, gasoline) a me nā aila mechanical (e like me nā aila hydraulic, nā aila, nā lubricants, a me nā mea ʻē aʻe), ʻoi aku ka maikaʻi ma mua o ka lāʻau lapaʻau. Hiki ke hoʻohālikelike me ka nitrile rubber. ʻO ka hemahema ʻo ia ka nui o ka waiwai pehu i loko o nā waiʻona, esters, ketones a me nā hydrocarbons aromatic.
(5) He kiʻekiʻe loa ka helu friction, ma luna o 0.5.
(6) Kūleʻa maikaʻi i ka haʻahaʻa haʻahaʻa, ozone, radiation, insulation uila a me ka hoʻopaʻa ʻana.
Ka manawa hoʻouna: Sep-02-2019