ʻenehana pale ahi o ka laholio

Koe wale nō kekahi mau huahana laholio synthetic, ʻo ka hapa nui o nā huahana laholio synthetic, e like me ka laholio kūlohelohe, he mau mea lapalapa a hiki ke ʻā. I kēia manawa, ʻo nā ʻano hana nui i hoʻohana ʻia e hoʻomaikaʻi i ka pale ʻana i ka lapalapa ʻana, ʻo ia ka hoʻohui ʻana i nā mea pale lapalapa a i ʻole nā ​​​​mea hoʻopihapiha pale lapalapa, a me ka hoʻohuihui a hoʻololi me nā mea pale lapalapa. Aia kekahi mau ʻano ʻenehana pale lapalapa no ka laholio:
1. ʻŌpala hydrocarbon
ʻO ka ʻōpala hydrocarbon e komo pū ana me NR, SBR, BR, a me nā mea ʻē aʻe. ʻO ka ʻōpala hydrocarbon ma ke ʻano laulā he pale wela maikaʻi ʻole a me ka pale lapalapa, a ʻo ka hapa nui o nā huahana palaho i ka wā o ke kuni ʻana he mau kinoea hiki ke puhi. ʻO ka hoʻohui ʻana i nā mea pale lapalapa he ala koʻikoʻi ia e hoʻomaikaʻi ai i ka pale lapalapa o ka ʻōpala hydrocarbon, a hoʻohana ʻia ka hopena synergistic o nā mea pale lapalapa e hoʻomaikaʻi hou aku i ka hopena pale lapalapa. Eia nō naʻe, pono e uku ʻia ka makaʻala i ka hopena maikaʻi ʻole o ka nui o ka mea pale lapalapa i nā waiwai mechanical o ka ʻōpala.
E hoʻohui i nā mea hoʻopihapiha inorganic flame-retardant e like me ka calcium carbonate, ka lepo, ka pauka talcum, ke kalapona ʻeleʻele keʻokeʻo, ka aluminiuma hydroxide, a pēlā aku e hōʻemi i ka hapa o nā mea olaola hiki ke puhi. Loaʻa i ka calcium carbonate a me ka nitrogen alumina kahi hopena endothermic ke palaho. E hōʻemi kēia ʻano hana i kekahi mau waiwai kino a me nā ʻano mechanical o ka mea rubber, a ʻaʻole pono e nui loa ka nui o ka hoʻopiha.
Eia kekahi, ʻo ka hoʻonui ʻana i ka nui o ka crosslinking o ka rubber hiki ke hoʻonui i kona helu oxygen. No laila, hiki iā ia ke hoʻomaikaʻi i ka pale ʻana i ka lapalapa o ka rubber. Hiki paha kēia ma muli o ka hoʻonui ʻia ʻana o ka mahana decomposition thermal o ka mea rubber. Ua hoʻohana ʻia kēia ʻano hana ma ka rubber Ethylene propylene.
2. Laho halogenated
Loaʻa i ka rapa halogenated nā mea halogen, me kahi helu oxygen ma waena o 28 a me 45, a ʻoi aku ka helu oxygen o FPM ma mua o 65. ʻO ke kiʻekiʻe o ka nui o ka halogen i loko o ka rapa halogenated, ʻoi aku ke kiʻekiʻe o kona helu oxygen. Loaʻa i kēia ʻano rapa ponoʻī ka pale ahi kiʻekiʻe a me ka hoʻopau ponoʻī ʻana i ka wā e hoʻā ʻia ai. No laila, ʻoi aku ka maʻalahi o ka mālama ʻana i ka pale ahi ma mua o ka rapa hydrocarbon. No ka hoʻomaikaʻi hou aku i ka pale ahi o ka rapa halogenated, hoʻohana pinepine ʻia ke ʻano o ka hoʻohui ʻana i nā mea pale ahi.
3. ʻO ka laholio Heterochain
ʻO ke ʻano rapa i hōʻike nui ʻia ma kēia māhele ʻo ia ka rapa dimethyl silicone, me kahi helu oxygen ma kahi o 25. ʻO nā ʻano hana pale lapalapa maoli i hoʻohana ʻia, ʻo ia ka hoʻonui ʻana i kona mahana decomposition thermal, hoʻonui i ke koena i ka wā o ka decomposition thermal, a hoʻolohi i ka wikiwiki o ka hana ʻana o nā kinoea hiki ke puhi.