No ke aha e pono ai ke vulcanized ka lāʻau?He aha nā pōmaikaʻi o ka vulcanizing rubber?
ʻOiai ua loaʻa kekahi mau hiʻohiʻona pono o ka lāʻau lapaʻau, he nui nā drawbacks, e like me ka ikaika haʻahaʻa a me ka elasticity haʻahaʻa;ʻO ke anu ka mea paʻakikī, ʻo ka wela ka mea paʻa;Maʻalahi ka makahiki, a pēlā aku. Ma ka makahiki 1840, ua ʻike ʻia he hiki ke hoʻopaʻa ʻia ka lāʻau ma ka hoʻomehana ʻana me ka sulfur.No laila, a hiki i kēia manawa, ʻoiai ʻaʻole hiki ke hoʻopili ʻia ka lāʻau me ka sulfur wale nō, akā pū kekahi me nā mea hana crosslinking kemika ʻē aʻe a me nā ʻano kino a me nā ʻano kemika, i ka ʻoihana lāʻau, ua maʻa mau ke kuhikuhi ʻana i ka crosslinking rubber ma ke ʻano he "vulcanization", ʻoiai. ʻO ka ʻoihana hoʻoili plastik i kekahi manawa e pili ana i ka crosslinking reaction e like me ka curing.Hoʻomaikaʻi maikaʻi ka Vulcanization i ka hana o ka lāʻau maka, hoʻonui i ka hoʻohana ʻana o ka lāʻau lapaʻau, a kau i ke kumu no ka hana ʻoihana nui a me ka hoʻohana ʻana i ka lāʻau.
ʻO ka vulcanization Rubber kekahi o nā kaʻina hana nui i ka hoʻoili ʻana i ka huahana lāʻau, a ʻo ia hoʻi ke kaʻina hana hope loa i ka hana huahana.Ma kēia kaʻina hana, hoʻololi ka lāʻau i nā hoʻololi kemika paʻakikī, mai ka hui ʻana i ka plastik a hiki i kahi lāʻau elastic a paʻakikī paha i hoʻopili ʻia, i mea e loaʻa ai nā waiwai kino, mechanical a me kemika, a hoʻomaikaʻi a hoʻonui i ka waiwai hoʻohana a me ka noi. laula o na mea hao.No laila, he mea koʻikoʻi ka vulcanization no ka hana ʻana a me ka hoʻohana ʻana i ka lāʻau a me kāna mau huahana.
ʻO ka manaʻo o ka vulcanization
ʻO ka Vulcanization e pili ana i ka huahana semi-finished i hana ʻia mai nā mea lāʻau lapaʻau me kahi plasticity a me ka viscosity (raw rubber, plastic compound, mixed rubber) ma o ka hana kūpono (e like me ka rolling, extrusion, molding, etc.) ma lalo o kekahi mau kūlana o waho, ma o kemika. nā kumu (e like me ka vulcanization system) a i ʻole nā mea kino (e like me γ ʻO ke kaʻina hana o ka hoʻohuli ʻana i ka hopena o ka radiation i loko o nā huahana elastic elastic a i ʻole nā huahana lāʻau paʻakikī e loaʻa ai ka hana ma ka hoʻohana ʻana. radiation) e hoʻoulu i ka hopena kemika ma waena o ka ʻōpala maka i loko o nā ʻāpana ʻāpana a me ka mea vulcanizing a i ʻole ma waena o ka ʻōpala maka a me ka ʻōpala maka, e hopena i ka hoʻopili ʻana o nā macromolecules laina laina i loko o nā macromolecules i kūkulu ʻia i loko o nā macromolecules.
Ma o kēia pane ʻana, ua hoʻomaikaʻi maikaʻi ʻia nā waiwai like ʻole o ka lāʻau lapaʻau, e hiki ai i nā huahana rubber ke loaʻa i ke kino, mechanical, a me nā waiwai ʻē aʻe e hiki ke hoʻokō i nā pono o ka hoʻohana ʻana i ka huahana.ʻO ke kumu o ka vulcanization ʻo ka cross-linking, ʻo ia ke kaʻina hana o ka hoʻololi ʻana i nā hale molekala rubber linear i loko o nā hale pūnaewele spatial.
Kaʻina hana sulfurization
Ma hope o ke kaupaona ʻana i ka nui o ka hui pū ʻana a me ka vulcanizing agent, ʻo ka hana aʻe e hoʻohui i ka vulcanizing agent.Manaʻo ʻia e hahai i kēia mau ʻanuʻu e hoʻopau ai.
1. ʻO ka mea mua, e hoʻomaʻemaʻe i ka wili wehe e hōʻoia i kona maʻemaʻe e pale i ka hui ʻana o nā mea haumia ʻē aʻe.A laila e hoʻololi i ke kiʻekiʻe o ka wili o ka wili wehe i ka liʻiliʻi loa a ninini i ka pahu i hui ʻia i loko o ka wili wehe no ka hele lahilahi.Ma hope o ka pau ʻana o ka paʻi lahilahi, pono e hoʻonui ʻia ka mamao o ka ʻōwili o ka mea hui e hōʻoia i ka ʻōwili ʻia ʻana o ka lāʻau i hui ʻia ma nā ʻōwili.ʻO ka mahana o ka ʻili o ka lāʻau i hui ʻia ma kahi o 80oC.
2. Ma ka hoʻoponopono ʻana i ka pitch roller a me ka wai hoʻoluʻu kūpono, e hoʻomalu ʻia ka mahana o ka ʻōpala hui ʻia ma kahi o 60-80 ° C. I kēia manawa, hoʻomaka ʻia ka mea vulcanizing e hoʻohui ʻia i ka huila hui.
Ka manawa hoʻouna: Oct-25-2023
