Nūhou

Moʻolelo oNā mea hoʻohui silicone / Silicone masterbatch / Siloxane masterbatcha pehea e hana ai manā hui uea a me ke kaulaʻoihana?

Nā mea hoʻohui silicone me50% polymer silicone hanahoʻopuehu ʻia i loko o ka mea lawe e like me ka polyolefin a i ʻole ka mineral, me ke ʻano o ka granular a i ʻole ka pauka, hoʻohana nui ʻia e like me nā mea kōkua hana i ka ʻoihana uea a me ke kaula. Nā huahana kaulana e like meSILOXANE MB50hana moʻo ma ke ʻano he lubricant a i ʻole ka mea hoʻololi rheological i ka ʻoihana uea a me ke kaula a ua hoʻolauna mua ʻia mai Dow Corning ma ʻAmelika Hui Pū ʻIa iwakālua mau makahiki i hala, a laila ʻo kaʻokoʻa SILICONE MASTERBATCH MB50ua ʻike ʻia ma ka mākeke me70% polymer silicone i hana ʻiahoʻopuehu ʻia i loko o ka mea lawe e like me ka silica, me ke ʻano o ka granular pū kekahi, a laila ʻike ʻia nā huahana mai Chengdu Silike ma ka mākeke mai ka makahiki 2004, me ka ʻike silicone mai 30-70% a me ke ʻano granular a pauka paha.

Pono e komo pū nā ʻano loea o ka masterbatch silicone kalepa i kēia mau mea:

(1) Ke hana ʻia ma ke ʻano he lubricant a i ʻole ka mea hoʻololi rheological, aia ka ʻike ma waena o 5 a 50%

(2) Pono ka mea lawe e kūlike me ka silicone a pono e noʻonoʻo ʻia ke ʻano nui o ka mea hoʻohana, me ka hōʻike inoa polymer a me ka helu hoʻoheheʻe o ka mea lawe, i hiki i nā mea hoʻohana ke kuhikuhi iā ia i ka wā e hoʻolālā ai i ke ʻano. Inā hoʻohana ʻia ka pauka mineral inorganic ma ke ʻano he mea lawe, pono e hōʻike ʻia ka inoa o ka pauka. He mea koʻikoʻi ke keʻokeʻo a me ka maikaʻi o nā pauka inorganic no nā mea kūʻai aku, a pono e koho ʻia nā pauka keʻokeʻo a me ka nui micron e like me ka hiki no ka hana ʻana.

I ka wā e hana ai ma ke ʻano he lubricants a i ʻole nā ​​​​​​mea hoʻololi rheological

No ka mea Polyethylene

E like me ka mea i ʻike nui ʻia, ʻo ka hanana o ka "ʻili mano" e kū pinepine i ka wā e hoʻopuka ai i nā uea a me nā kaula polyethylene insulated a i ʻole sheathed, ʻoiai i ka wā e hoʻopuka ai i ka linear low-density polyethylene (LLDPE) a i ʻole ultra-low density polyethylene (ULDPE a i ʻole POE). ʻO nā mea polyethylene i hoʻopili ʻia i hoʻopili ʻia (inā he peroxide cross-linking a silane cross-linking paha) e ʻike pinepine i ka hanana "ʻili mano", ma muli o ka noʻonoʻo pono ʻole o ka ʻōnaehana lubrication i loko o ke ʻano mea. ʻO ka hana honua o kēia manawa ka hoʻohui ʻana i nā nui liʻiliʻi o nā fluoropolymers i ke ʻano, akā kiʻekiʻe ke kumukūʻai a ua kaupalena ʻia ka hoʻohana ʻana.

Me kahi liʻiliʻi osilicone kaumaha molekala kiʻekiʻe loa(0.1-0.2%) i ka polyethylene a i ʻole ka polyethylene i hoʻopili ʻia me ke keʻa hiki ke pale pono i ka hana ʻana o ka "ʻili mano". I ka manawa like, me kona hopena lubrication, hiki iā ia ke hōʻemi pono i ka extrusion torque e pale ai i ka hoʻōki ʻana o ke kaʻa huki ma muli o ka overload.

ʻO ka silicone i hoʻohana ʻia ma ke ʻano he lubricant, ma muli o kona hoʻohui liʻiliʻi, pono e hoʻolaha like ʻia i loko o ka mea i mea e hana ai i ka wā o ka hana ʻana. Ma muli o ka inertness kemika o ka silicone, ʻaʻole ia e pane kemika me nā mea i loko o ke ʻano. Manaʻo ʻia e hoʻohui like ka hale hana mea uwea i ka silicone i loko o ke kaʻina hana granulation plasticizing e maʻalahi ai ka hoʻohana ʻana i ka hale hana uwea.

NoNā hui kaula pale ahi ʻole Halogen (HFFR) 

Ma muli o ke alo o ka nui o nā mea pale ahi (pauka mineral) i loko o nā hui kaula HFFR, kahi e hopena ai i ka viscosity kiʻekiʻe a me ke kahe maikaʻi ʻole i ka wā o ka hana ʻana; ʻO ka viscosity kiʻekiʻe e paʻakikī ai i ka motika ke kauō i ka wā extrusion, a ʻo ka wai maikaʻi ʻole e hopena i kahi liʻiliʻi o ke kāpili i hana ʻia i ka wā extrusion. No laila, i ka wā e hoʻopuka ai ka hale hana kaula i nā kaula halogen-free, ʻo ka pono he 1/2-1/3 wale nō o ke kaula polyvinyl chloride.

Me kahi nui o ka silicone i loko o ke ʻano hana, ʻaʻole wale ka hoʻomaikaʻi ʻana i ke kahe ʻana o ka hana akā loaʻa pū kekahi pale ahi maikaʻi no ka mea.