Māhele: Polyethylene
Nature: ʻAʻohe ʻono, ʻala ʻole, ʻawaʻawa ʻole, ʻōlinolino ʻole, nā ʻāpana waxy keʻokeʻo milky me ka mānoanoa ma kahi o 0.920 g/cm3 a me kahi helu heheʻe o 130 ℃ a 145 ℃. ʻAʻole hiki ke hoʻoheheʻe ʻia i ka wai, hiki ke hoʻoheheʻe ʻia i loko o ka hydrocarbons, etc. Hiki iā ia ke pale aku i ka hoʻoheheʻe ʻana o ka hapa nui o nā waikawa a me nā alkalis, haʻahaʻa haʻahaʻa wai, mālama i ka maʻalahi i nā haʻahaʻa haʻahaʻa, a loaʻa ka insulation uila kiʻekiʻe.
Ka hana hana: There are mainly two production processes: high-pressure tubular process and kettle process. In order to reduce the reaction temperature and pressure, the tubular process generally uses low-temperature and high-activity initiators to initiate the polymerization system. High-purity ethylene is the main raw material, and propylene, propane, etc. are used as density adjusters. The polymerization reaction is carried out under the conditions of about 200℃ to 330℃ and 150 to 300 MPa using high-activity initiators. The molten polymer initiated by polymerization in the reactor must be cooled and separated under high pressure, medium pressure, and low pressure. The high-pressure circulating gas is cooled and separated and then sent to the inlet of the ultra-high-pressure (300 MPa) compressor. The medium-pressure circulating gas is cooled and separated and then sent to the inlet of the high-pressure (30 MPa) compressor. The low-pressure circulating gas is cooled and separated and then recycled by the low-pressure (0.5 MPa) compressor. The molten polyethylene is separated under high pressure and low pressure and then sent to the granulator for water cutting. During granulation, suitable additives can be added according to different application fields, and the particles are packaged and shipped.
Pili: It can be processed by injection molding, extrusion molding, blow molding, etc. It is mainly used as agricultural film, industrial packaging film, pharmaceutical and food packaging film, mechanical parts, daily necessities, building materials, wire and cable insulation, coatings, and synthetic paper, etc.
ʻO ka Polyethylene Powder Pena
ʻO ka pena polyethylene pauka ka mea nui a hoʻohana nui ʻia o ka pena thermoplastic pauka. Hāʻawi ka resin maikaʻi i ke kumu no nā uhi kiʻekiʻe o ka pena polyethylene pauka. Loaʻa i ke kiʻi ʻoniʻoni nā mea maikaʻi aʻe: a) ke kūpaʻa wai maikaʻi loa, ka pale ʻana i ka wai a me ka alkali, ke kūpaʻa kemika, a me ka nui o ka absorption wai ma lalo o 0.001%; b) maikaʻi ka wela wela a me ka uila, ʻaʻohe ʻino uila; c) ka ikaika tensile maikaʻi loa, ka maʻalahi, a me ka pale ʻana i ka hopena; d) maikaʻi haʻahaʻa haʻahaʻa kū'ē,ʻaʻohe māwae ma -40 ℃ no ka oi ma mua o 400h, hiki ke hoʻohana 'ia i loko o ke anuanu kaiapuni o ka akau; e) haʻahaʻa kumu kumu kumu kūʻai, non-toxic.
Hāʻawi kēia ʻano pena pauda i ke kiʻi ʻoniʻoni i ka pae maikaʻi loa, palupalu, a me ke ʻano waxy. Ke hoʻopili ʻia ke kiʻi ʻoniʻoni o ka pauka polyethylene me kekahi mau solvents a i ʻole detergents, e haki koke ia ma muli o ke kaumaha. ʻO ka maʻamau, hoʻohana ʻia nā ʻano resins ʻē aʻe e hoʻololi i ka resin polyethylene, hoʻomaikaʻi nui i nā ʻano mechanical o ka polyethylene powder paint, hoʻomaikaʻi i kona pili ʻana i ka substrate, a me ka hoʻolaha ʻana i ka hoʻomohala ʻana o kēia ʻano uhi, hoʻonui nui i kāna mau noi noi.
He aha ke code HS o ka polyethylene powder coating?
Introduction of HS code of polyethylene powder coating HS CODE is the abbreviation of "Harmonized Commodity Description and Coding System". Hoʻokumu ʻia ka Harmonization System Code (HS-Code) e ka International Customs Council a ʻo ka inoa Pelekane ʻo The Harmonization System Code (HS-Code). ʻO nā kumu kumu o nā kuʻuna a me nā mea kūʻai aku komo a puka i waho o nā ʻāina like ʻole e hōʻoia i nā ʻāpana waiwai, e alakaʻi i ka hoʻokele hoʻonohonoho ʻana o nā huahana, e nānā i nā kūlana tariff, a nānā i nā hōʻailona maikaʻi o nā huahana nā palapala hōʻoia maʻamau no ka lawe ʻana mai.Heluhelu hou aku…
He aha ka Polyethylene Paint
ʻO ka Polyethylene Paint, ka mea i ʻike ʻia he ʻili palaki, he mau uhi i hoʻohana ʻia i nā mea plastik. I kēia mau makahiki i hala iho nei, ua hoʻohana nui ʻia nā uhi plastik i ke kelepona paʻa, TV, kamepiula, kaʻa, nā mea kaʻa kaʻa a me nā kula ʻē aʻe, e like me nā ʻāpana o waho a me nā ʻāpana o loko. Hoʻohana nui ʻia nā mea hoʻohui, nā uhi plastik i nā mea haʻuki a me nā mea leʻaleʻa, nā mea hoʻonaninani, a me nā mea pāʻani. ʻO nā uhi resin acrylate Thermoplastic, nā uhi hoʻololi acrylate-polyurethane resin thermosetting, nā uhi hoʻololi polyolefin chlorinated, nā uhi polyurethane i hoʻololi ʻia a me nā ʻano ʻano ʻē aʻe, i waena o ia mau ʻāpana acrylic.Heluhelu hou aku…
He aha ka High Density Polyethylene
ʻO ka polyethylene kiʻekiʻe (HDPE), ka pauka keʻokeʻo a i ʻole ka huahana granular. Non-toxic, tasteless, crystallinity of 80% to 90%, softness point of 125 to 135°C, hoʻohana i ka mahana a hiki i 100°C; ʻoi aku ka paʻakikī, ka ikaika tensile a me ka ductility ma mua o ka polyethylene haʻahaʻa haʻahaʻa; ʻaʻahu kūʻokoʻa, uila ʻO ka insulation maikaʻi, ka paʻakikī a me ke kūpaʻa anu; paʻa kemika maikaʻi, ʻaʻole hiki ke hoʻoheheʻe ʻia i loko o kekahi mea hoʻoheheʻe kūlohelohe i ka mahana o ka lumi, kūpaʻa i ka corrosion o ka waika, alkali a me nā paʻakai like ʻole; hikiwawe kiʻiʻoniʻoni i ka wai mahu a me ka ea, wai absorption Haʻahaʻa; ʻino ka pale ʻana i ka wā kahiko,Heluhelu hou aku…
He aha ke kaʻina hana o ka Polyethylene
Hiki ke hoʻokaʻawale ʻia ke kaʻina hana o ka polyethylene i: High pressure method, high pressure method is used to produce low density polyethylene. ʻO ke kaomi haʻahaʻa. E pili ana i ke ʻano haʻahaʻa haʻahaʻa, aia ke ʻano slurry, ke ʻano hoʻonā a me ke ʻano hana kinoea. Hoʻohana ʻia ke ʻano kaomi kiʻekiʻe e hana i ka polyethylene haʻahaʻa haʻahaʻa. Ua kūkulu mua ʻia kēia ʻano hana. ʻO ka polyethylene i hana ʻia e kēia ʻano hana e pili ana i ka 2/3 o ka huina o ka polyethylene, akā me kaHeluhelu hou aku…
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 Chlorinated: 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 lālā, ka degere chlorination ma hope o ka chlorination, ka hāʻawi ʻana i ka chlorine atom a me ke koena crystallinity oHeluhelu hou aku…
Hoʻokaʻawale ʻana o ka Polyethylene
Hoʻokaʻawale ʻia ka polyethylene Polyethylene i ka polyethylene kiʻekiʻe kiʻekiʻe (HDPE), ka polyethylene haʻahaʻa haʻahaʻa (LDPE) a me ka linear low density polyethylene (LLDPE) e like me ke ʻano polymerization, ke kaumaha molekala a me ke kaulahao. Nā Waiwai LDPE: ʻono ʻole, ʻala ʻole, ʻaʻohe mea ʻawaʻawa, ʻili ʻeleʻele, nā ʻāpana waxy keʻokeʻo keʻokeʻo milky, ʻano nui e pili ana i 0.920 g/cm3, wahi hoʻoheheʻe 130 ℃ ~ 145 ℃. ʻAʻole hiki ke hoʻoheheʻe ʻia i ka wai, hiki ke hoʻoheheʻe ʻia i loko o nā hydrocarbons, a pēlā aku. Hiki iā ia ke pale i ka hoʻoheheʻe ʻana o ka hapa nui o nā waikawa a me nā alkalis, haʻahaʻa haʻahaʻa o ka wai, hiki ke mālama i ka maʻalahi i nā haʻahaʻa haʻahaʻa, a loaʻa.Heluhelu hou aku…