E hoʻohana ʻia kahi maʻamau ASTM hou e hoʻāʻo ai i ka maikaʻi o ka silica, kahi mea maka i hoʻokumu i ke kumu no nā kaila "ʻōmaʻomaʻo".ʻO nā hui huila a me nā mea hana silica ka mea hoʻohana mua i ka maʻamau hou (D8016, Test Method for Silica, Precipitated, Hydrated - Sears Number).Wahi a ka lālā ASTM ʻo Jorge Lacayo-Pineda, hoʻomaikaʻi ka ʻenehana silica i ka hana ʻana i ke kūpaʻa kaʻa kaʻa me ka ʻole o ka emi ʻana o ka hana braking.Ke alakaʻi nei kēia i ka ʻoi aku ka maikaʻi o ka wahie, a me ka hoʻemi ʻana i ka hoʻokuʻu ʻana o carbon dioxide i nā kaʻa.Hiki i nā hui Rubber, nā mea hoʻohana nui o ka silica precipitated, ke hoʻomaikaʻi i kā lākou kikoʻī a hōʻoia i ka maikaʻi o ka huahana ma o ka hoʻāʻo ʻana i ka maʻamau hou, wahi āna.Hoʻolālā ka subcommittee ʻo ASTM nāna i hoʻokumu i ka D8016 e hana i ka hoʻāʻo round robin i ka puna aʻe e loiloi i ka pololei o ka maʻamau hou.Paipai ʻia nā labs hui Rubber, nā mea hana silica a me nā kula hoʻonaʻauao e hui pū.E hāʻawi ʻia nā mea komo i ke aʻo ʻana i nā laʻana e kālailai e like me ke kūlana hou.
Silika hoʻohuehu
ʻO ka hoʻopaʻa ʻana, anti adhesion, anti caking, coagulation, hoʻokuʻu hoʻokuʻu ʻia, lawe, kōkua kahe, hoʻomaikaʻi i ka hopena paʻi, hana mechanical, nā mea hoʻohui kūikawā no ka thermoplastic, hoʻoikaika, rheological control a me ke keʻokeʻo.Hiki ke hoʻoheheʻe ʻia i ka ʻaila hydrophobic silica i mālama ʻia e ka hoʻololi ʻana i ka ʻili.Ke hoʻohana ʻia ʻo ia e hoʻoikaika i ka hoʻopiha piha i ka lāʻau a me nā plastics, e hoʻomaikaʻi maikaʻi ʻia ka ikaika mechanical a me ka waimaka o kāna mau huahana.
He nui ka hoʻohana ʻana o ka silica precipitated, a he ʻokoʻa nā huahana like ʻole.Ma ke ʻano he mea hoʻoikaika maikaʻi no ka lāʻau synthetic, ʻo kāna hana hoʻoikaika i ka lua wale nō i ka ʻeleʻele kalapona, a ʻoi aku ka maikaʻi ma mua o ke kalapona ʻeleʻele ma hope o ka hoʻomaʻamaʻa ʻana i ka ʻili maikaʻi loa.He mea kūpono ia no ka hana ʻana i nā huahana keʻokeʻo, kala a me nā kala māmā.Hoʻohana ʻia e like me ka mānoanoa a i ʻole ka mānoanoa, ka hui hui ʻana o ka ʻaila synthetic a me ka pena insulating, dimming agent of paint, thixotropic agent of electronic component packaging material, precipitant of phosphor i ka wā fluorescent screen coating, filler of color printing rubber plate and mold release agent for casting .ʻO ka hoʻohui ʻana i loko o ka resin hiki ke hoʻomaikaʻi i ka moisture-proof a me nā waiwai insulation o ka resin.Hiki i ka hoʻopiha ʻana i nā huahana plastik ke hoʻonui i ka pale skid a me ka pale ʻaila.
Ka manawa hoʻouna: Iune-22-2021