Hoʻokaʻawale a me ka hoʻohana ʻana i ka lāʻau

1. Ka wehewehe ʻana o ka lāʻau

ʻO ka huaʻōlelo "rubber" mai ka ʻōlelo India ʻo cau uchu, ʻo ia hoʻi ka "lāʻau uwē".

ʻO ka wehewehe ʻana ma ASTM D1566 penei: ʻo ka rubber kahi mea hiki ke hoʻihoʻi koke i kona deformation ma lalo o ka deformation nui a hiki ke hoʻololi ʻia.ʻAʻole hiki ke hoʻoheheʻe ʻia ka pahu i hoʻololi ʻia (akā hiki ke) i loko o nā mea hoʻoheheʻe paila e like me benzene, methyl ethyl ketone, ethanol toluene mixture, etc.Ma hope o ka wehe ʻana i ka ikaika o waho, hiki ke hoʻihoʻi hou i ka liʻiliʻi ma mua o 1.5 mau manawa o kona lōʻihi mua i hoʻokahi minuke.ʻO ka hoʻololi i ʻōlelo ʻia ma ka wehewehe e pili ana i ka vulcanization.

Hiki ke hoʻopaʻa ʻia ke kaulahao molekala o ka lāʻau.Ke hoʻoheheʻe ʻia ka lāʻau i hoʻopaʻa ʻia ma lalo o ka ikaika o waho, hiki iā ia ke hoʻihoʻi koke, a loaʻa iā ia nā waiwai kino a me nā mīkini a me ke kūpaʻa kemika.ʻO ka pulupulu i hoʻopaʻa iki ʻia he mea elastic kiʻekiʻe maʻamau.

ʻO ka Rubber kahi mea polymer, he nui nā hiʻohiʻona maʻamau o kēia ʻano mea, e like me ka haʻahaʻa haʻahaʻa, haʻahaʻa haʻahaʻa i ka wai, insulation, viscoelasticity a me ka ʻelemakule kaiapuni.Eia kekahi, palupalu a haʻahaʻa ka paʻakikī o ka rubber.

2. Ka papa kuhikuhi nui o ka lāʻau

Hoʻokaʻawale ʻia ʻo Rubber i ka lāʻau kūlohelohe a me ka synthetic rubber e like me nā mea maka.Hiki ke hoʻokaʻawale ʻia i loko o ka palaka maka, ka latex, ka ʻili wai a me ka pauka e like me ke ʻano.

ʻO ka Latex kahi hoʻopuehu wai colloidal o ka lāʻau;ʻO ka lāʻau wai he oligomer o ka lāʻau, ʻo ia ka mea maʻamau he wai viscous ma mua o ka vulcanization;

Hoʻohana ʻia ka ʻōpala pauka e hana i ka latex i pauka no ka hoʻopaʻa ʻana a me ka hana ʻana.

ʻAʻole pono ka vulcanization kemika i ka lāʻau thermoplastic i hoʻomohala ʻia i ka makahiki 1960, akā hoʻohana i ka hana pono o nā plastic thermoplastic e hana ai.Hiki ke hoʻokaʻawale ʻia ka Rubber i ke ʻano maʻamau a me ke ʻano kūikawā e like me ka hoʻohana ʻana.

3. Hoʻohana i ka lāʻau

ʻO ka Rubber ke kumu kumu o ka ʻoihana ʻōpala, i hoʻohana nui ʻia e hana i nā kaila,nā paipu ʻōpala, lipine,pahu pahu, nā uwea a me nā huahana ʻē aʻe.

4. Hoʻohana i nā huahana vulcanized rubber

Hoʻokumu ʻia nā huahana vulcanized Rubber me ka ʻoihana kaʻa.ʻO ka hoʻomohala wikiwiki ʻana o ka ʻoihana kaʻa a me ka ʻoihana petrochemical i nā makahiki 1960 ua hoʻomaikaʻi nui i ka pae hana o ka ʻoihana ʻōpala;I nā makahiki 1970, i mea e hoʻokō ai i nā pono o ka wikiwiki kiʻekiʻe, ka palekana, ka mālama ʻana i ka ikehu, ka hoʻopau ʻana i ka pollution a me ka pale ʻana i ka pollution o nā kaʻa, ua hoʻolaha ʻia nā ʻano huila hou.ʻO ka hoʻohana ʻana i ka lāʻau lapaʻau ka hapa nui o ka lawe ʻana.

ʻo kahi laʻana;Pono kahi kaʻa 4-ton Jiefang ma mua o 200 kg o nā huahana lāʻau lapaʻau, pono e hoʻolako ʻia kahi kaʻa noho paʻa me ka ʻoi aku ma mua o 300 kg o nā huahana ʻōpala, kahi moku 10000 tons e pono ai i kahi kokoke i 10 tons o nā huahana lāʻau lapaʻau, a ʻo kahi mokulele mokulele pono e pono ai. 600 kg o ka pulupulu.Ma ke kai, ka ʻāina a me ka ea, ʻaʻohe mea hiki ke hana me ka ʻole o nā huahana vulcanized rubber.