He aha ka Polyethylene Hoʻololi ʻia?

He aha ka Polyethylene Hoʻololi ʻia?

ʻO ka nui o nā ʻano polyethylene i hoʻololi ʻia he polyethylene chlorinated, chlorosulfonated polyethylene, cross-linked polyethylene a me nā ʻano like ʻole i hoʻololi ʻia.

Polyethylene Klorina:

He chloride maʻamau i loaʻa ma ka hoʻololi hapa ʻana i nā ʻātoma hydrogen i ka polyethylene me ka chlorine. Lawe ʻia ʻo Chlorination ma lalo o ka hoʻomaka ʻana o ka māmā a i ʻole ka peroxide, a hana nui ʻia e ke ʻano hoʻokuʻu wai i ka ʻoihana. Ma muli o ka ʻokoʻa o ka paona molekala a me ka hāʻawi ʻana, ka degere branching, ka degere chlorination ma hope o ka chlorination, ka hāʻawi ʻana o ka chlorine atom a me ke koena crystallinity o ka polyethylene maka, ka polyethylene chlorinated mai ka rubbery a hiki i ka plastic paʻa. ʻO ka hoʻohana nui ʻana he mea hoʻololi o ka polyvinyl chloride e hoʻomaikaʻi i ka hopena o ka hopena o ka polyvinyl chloride. Hiki ke hoʻohana ʻia ka polyethylene chlorinated ponoʻī e like me ka mea hoʻokalakupua uila a me nā mea lepo.

Chlorosulfonated polyethylene:

Ke hana ka polyethylene me ka chlorine i loko o ka sulfur dioxide, ua hoʻololi ʻia kahi hapa o ka hydrogen i loko o ka mole e ka chlorine a me kahi pūʻulu sulfonyl chloride e loaʻa ai ka polyethylene chlorosulfonated. ʻO ke ʻano hana ʻoihana nui ke ʻano hoʻomaha. ʻO ka chlorosulfonated polyethylene ke kū'ē i ka ozone, kaʻinoʻino, kaʻaila, ka wela, ka māmā, ka abrasion a me ka ikaika tensile. He elastomer me nā waiwai piha maikaʻi a hiki ke hoʻohana ʻia e hana i nā ʻāpana lako e pili ana i ka meaʻai.

XLPE:

Ke hoʻohana nei i ke ala hoʻoheheʻe (X-ray, electron beam a i ʻole ultraviolet irradiation, etc.) a i ʻole ke ʻano kemika (peroxide a i ʻole silicone cross-linking) e hana i ka polyethylene linear i loko o ka pūnaewele a i ʻole ka polyethylene cross-linked nui. Ma waena o lākou, he hana maʻalahi ke kaʻina hana cross-linking silicone, haʻahaʻa nā kumukūʻai hana, a hiki ke hoʻokō ʻia ka hoʻoheheʻe ʻana a me ka hoʻopili ʻana i nā ʻanuʻu, no laila ua kūpono ka hoʻoheheʻe ʻana a me ka hoʻoheheʻe ʻana. Hoʻomaikaʻi maikaʻi ʻia ka pale ʻana i ka wela, ka hoʻoluhi ʻana i ke kaiapuni a me nā waiwai mechanical o ka polyethylene cross-linked i hoʻohālikelike ʻia me ka polyethylene, a ua kūpono ia no nā paipu nui, nā kaula a me nā uea, a me nā huahana rotomolding.

ʻO ka hoʻololi ʻana o ka polyethylene:

Ma hope o ka hui ʻana i ka polyethylene haʻahaʻa haʻahaʻa haʻahaʻa a me ka polyethylene haʻahaʻa haʻahaʻa, hiki ke hoʻohana ʻia e hana i nā kiʻiʻoniʻoni a me nā huahana ʻē aʻe, a ʻoi aku ka maikaʻi o ka huahana ma mua o ka polyethylene haʻahaʻa haʻahaʻa. Hiki ke hoʻohui ʻia ka polyethylene a me ka ethylene propylene rubber e hana i kahi ākea mea ʻeleʻele nā elastomers