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He aha ke kiʻi pale pale pena?

KĀNĀ: 2019-12-17


Ua ʻike anei ʻoe i kēia lā no ka hoʻomohala ʻia ʻana o nā kiʻi ʻoniʻoni o nā kaʻa no kēia lā no ka hoʻouka kaua ʻana a hiki i ke Kaua Vietnam?

I ka wā o ka 1960, ua pilikia ka US Department of Defense me nā pahi helikopter a me nā lako kaua ʻē aʻe i hōʻino ʻia e nā ʻōpala a i ʻole nā ​​shrapnel lele.

Ua hoʻonāukiuki kēia iā lākou e kāhea aku i ka ʻoihana 3M e hoʻomohala i kahi pale pale i aniani moakaka a me ka māmā-kaupaona.

Ke hoʻomohala nei kā lākou hopena i ke kiʻi pale pale pena (a i kapa ʻia he helikopter). ʻO kāna noi mua he kālepa, no laila ʻaʻole ia i manaʻo ʻia e "sparkle". ʻO ka ʻoiaʻiʻo, ʻano kūpilikiʻi nā mana mua - me kahi ʻālohilohi ʻōlinu o ke ao. Akā hana lākou i kahi hana kūikawā no ka pale ʻana ma nā wahi āpau i noi ʻia ai.


ʻO ka PPF kaʻa o kēia lā ua lilo i kiʻi ʻoniʻoni thermoplastic urethane kiʻekiʻe i hoʻopili ʻia i ka pale luna o nā pena pena o kahi kaʻa hou a i hoʻohana ʻia paha. Loaʻa ia i nā waihoʻoluʻu he nui a i ʻole kahi mana optically maopopo, i nā ʻano mānoanoa like ʻole.

Kūʻē nui ke kiʻi ʻoniʻoni urethane i nā mea ʻino acidic a me ka popopo, e hāʻawi ana i ka pale ʻana i ka pīpī pīpī, nā lepo manu, nā waihona mineral, ka ua waikawa, a me nā mea hou aʻe. Kōkua pū ka mea like ʻole iā ia e hōʻemi i ka oxidization ma muli o ka hōʻike nui ʻana i ka lā a i ʻole ke kukui UV.

Loaʻa i ka papa luna o ka PPF kahi elastomeric polymer waiwai e kōkua ai i ka mea e mālama i kahi ʻano kūlohelohe ke kau ʻia a noi ʻia paha. ʻAe kēia hiʻohiʻona i ka PPF e "hoʻōla iā ia iho" ke loaʻa nā ʻōpala māmā.