He aha ka UV-lapa silikono hiki ke ho'ōla?

Sep 03, 2025 Waiho i kahi memo

ʻO ka hoʻomaʻamaʻa māmā e pili ana i ke kaʻina hoʻōla o nā monomers, oligomers a i ʻole polymer matrices ma lalo o ka induction māmā, a hoʻohana mau ʻia i ke kaʻina hana kiʻiʻoniʻoni. ʻO ka ʻenehana hoʻōla māmā he ʻenehana maikaʻi loa, mālama i ka ikehu, hoʻomaʻemaʻe a me ka ʻenehana pili i ke kaiapuni. Mālama ia i ka ikehu - hoʻokahi hapalima o ka hoʻōla wela. He ʻano hou o ka huahana organosilicon ka ʻili silikoni, nona nā ʻano ʻekolu: ʻano acrylate, ʻano apo a me ke ʻano hoʻohui hydrosilane.

 

ʻO ke ʻano Acrylate ka mea kahiko loa a me ka hoʻohana nui ʻia ʻana o ka UV-lapa silikika hiki ke mālama ʻia. He polyorganosiloxane ka pulupulu kumu i ho'ohana 'ia ma ka UV-lālā silikono me ka ho'opau acrylate a i 'ole nā ​​kaulahao 'ao'ao acrylate. Hiki ke loa'a ia mau mea ma o ka hopena hydrosilylation catalytic o ka hydrogen-i loa'a ka polyorganosiloxanes a me ka acrylate (Equation 6.11), a i ole synthesized by the reaction of epoxy-containing polyorganosiloxanes with acrylic acid (Equation 6.12).

 

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ʻO ke ʻano hoʻōla o ke ʻano acrylate ʻano UV-kopa silicone hiki ke hoʻōla ʻia ʻo ia ka mea e hoʻopuka ai ka photoinitiator i nā radical manuahi ma lalo o ka mālamalama, a laila ka manuahi manuahi.siliconeHoʻomaka nā radical i ka polymerization o ka acrylate. Hoʻohana pinepine ʻia nā photoinitiators radical manuahi me ka 2-hydroxy-2-methyl-1-phenylacetone, 2,4, 6-trimethylbenzoyl-diphenylphosphine oxide, etc. He wikiwiki ka polymerization radical manuahi, akā hiki i ka oxygen i ka lewa ke kinai i nā radical manuahi a hana ma ke ʻano he polymerization inhibitor. No laila, ʻoi aku ka maikaʻi o ka hoʻōla ʻana ma lalo o nā kūlana palekana nitrogen.

 

ʻO ka lāʻau kumu o ka epoxy-type UV-ʻano hoʻōla silikino he polyorganosiloxane i loko o nā pūʻulu epoxy cyclohexyl. ʻO kāna hana synthesis ka hana ʻana iā ia ma o ka catalytic hydrosilylation reaction o ka hydrogen-loaʻa ʻaila silicone a me 3-methyl-7-oxacyclic [4.10] heptanol.

 

'O ka ho'ōla 'ana i ka epoxy-type UV-ho'oma'ema'e silicone rubber ho'ohana i ka cationic polymerization photoinitiators. Hoʻokumu kēia mea hoʻomaka i ka waikawa protonic ma lalo o ka ʻike māmā, a laila hoʻomaka i ka polymerization cationic o nā pūʻulu epoxy cyclohexyl.

  

ʻO ka hoʻoheheʻe ʻana i ka hydrogen -hydrogen he ʻano hou o ka UV-lapa silikono hiki ke mālama ʻia i kūkulu ʻia i nā makahiki i hala iho nei. Hoʻohana ʻo ia i ka platinum photosensitive ma ke ʻano he lāʻau lapaʻau, a hiki i kēia pūhui ke hoʻokuʻu i nā mea hoʻoheheʻe platinum e hoʻopololei ana i ka hoʻohui ʻana o ke kilikaki{3}}hydrogen ma lalo o nā kūlana māmā. Ma waho aʻe o ka catalysis, ua like kona ʻano me ko ka lumi -mahana silikoni vulcanized rubber.

 

ʻO ka hoʻohana ʻana i ka lāʻau silikoni hiki ke hoʻōla ʻia he UV-nui loa. Ma nā ʻano he nui, hiki iā ia ke hoʻololi i ka lāʻau vulcanized wela o ka lumi a me kekahi ʻōpala wela -kiʻekiʻe. I kēia manawa, ʻo ka hoʻohana nui ʻana o UV -lapa silikoni hiki ke ho'ōla ʻia, ʻo ia ke sila, ka hoʻopaʻa ʻana a me ka uhi ʻana, me ka hoʻopili ʻana a me ka ipuhao o nā ʻāpana uila a me nā hui, nā uhi mua - no nā fiber optical, a me nā uhi hoʻokaʻawale no ka pepa a me nā plastics, a pēlā aku. Hiki ke hoʻōla ʻia ʻo Silicone rubber e ka hoʻohui ʻana i ka silikoni a me ka hydrosilane hiki ke hana ʻia ma o ka extrusion tube.