E noiʻi i ka hoʻohana ʻana i ka polyethylene i nā mea haʻuki

2022-10-27

  ʻO ka polyethylene kahi resin thermoplastic me ke kūpaʻa haʻahaʻa haʻahaʻa maikaʻi loa, ka hoʻokaʻawale uila a me ke kū'ē i ka nui o ka waikawa a me ka alkali corrosion, i hoʻohana nui ʻia i ka hana a me ke ola. Polyethylene products of different forms are widely used in the field of sports equipment. Among them, polyethylene fiber can be used to make racket netting and artificial lawn court; Polyethylene foam can be used to manufacture gymnastics mat; Papa HDPE hiki ke hoʻohana ʻia no ka hana ʻana i ka buoy a me ka papa hau. Ma kēia pepa, nānā ʻia ka hoʻohana ʻana o ka polyethylene i ke kahua o nā mea haʻuki.


1. Polyethylene foam


  Ma ke kahua o ka haʻuki, hoʻohana nui ʻia ka polyethylene foam i nā ʻano pale like ʻole a me nā moena papahele. Ua hoʻomohala ʻo East China University of Science and Technology i kahi ʻano mea hoʻoheheʻe polyethylene i hoʻopili ʻia me ke kūpaʻa kiʻekiʻe. Loaʻa i kēia mea ke kūpaʻa maikaʻi, ke kiʻekiʻe o ka pani ʻana o ka cell cell, a me ke ola lawelawe lōʻihi. Hoʻohana nui ʻia ia i nā haʻuki, pale, pale, ka lawe ʻana a me nā māla ʻē aʻe. Penei ke ʻano o ka hoʻomākaukau ʻana: ʻo ka mea mua, hoʻokomo ʻia ka 80.0 phr low-density polyethylene a me 20.0 phr ethylene propylene diene monomer rubber i loko o kahi huila kūloko no ka hui ʻana i loko. Ma hope o ka hoʻoheheʻe ʻia ʻana o ka resin a hui pū ʻia, hoʻohui ʻia ka 10.0 phr azo dimethylphthalamide a me ka 2.0 phr zinc oxide ma ke ʻano he mea hoʻohua i loko o ka mixer kūloko no ka hui ʻana i loko no 3 mau minuke; A laila, e hoʻohui i ka 0.5 phr crosslinking agent diisopropylbenzene peroxide a me ke cross-linking aid trimethylolpropane trimethyl acrylate i loko o ka hui kūloko no ka hui ʻana i loko no 2 min, a lawe iā lākou i waho no ka hoʻomaʻemaʻe ākea. E mālama ʻia ka mahana o ka hui ʻana i loko a me ka hui ʻana ma 100 ~ 130 ℃. ʻO nā huila i loaʻa mai ka wili hāmama e ʻoki ʻia a laila hoʻohui ʻia i ka extruder twin-screw no ka granulation. ʻO ka mahana he 100 ~ 125 ℃, a ʻo ka wikiwiki o ka screw he 30 r / min. Hoʻohui ʻia nā granules i kahi extruder screw hoʻokahi e hoʻokuʻu i ka pepa me ka mānoanoa o 2 mm a me ka laulā o 400 mm, ʻo ka mahana he 100 ~ 125 ℃, a ʻo ka wikiwiki o ka screw he 30 r / min. Hoʻopili ʻia nā lau a hoʻohuʻi ʻia i loko o ka umu hoʻomāmā ʻekolu. ʻO ka wela o ka umu ahi o 1 ~ 3 ʻāpana he 140 ℃, 160 ℃ a me 190 ℃ i kēlā me kēia, a ʻo ka wikiwiki o ka lawe ʻana i ke kāʻei mesh he 1.5 m / min. Hoʻomaʻalili ʻia ka mea i hoʻoulu ʻia, hana ʻia a ʻōwili ʻia e ka roller cooling a me ka roller traction e kiʻi i kahi huahana i hoʻopau ʻia me ka laulā o 820 mm, ka mānoanoa o 5 mm a me ka density o 0.08 g / cm3. ʻO ka rebound rate o nā huahana i hoʻopau ʻia ʻo 55%, hiki ke hoʻohana nui ʻia i ka hoʻopili ʻana, nā haʻuki a me ka pale, ka lawe ʻana a me nā māla ʻē aʻe.


  ʻO nā moena papahele palaki i hoʻohana ʻia i ka gymnastics he polyethylene a me PVC. Hana ʻia ka cushion PVC me ka PVC palupalu. He palupalu a paʻakikī, akā he palupalu. Ma hope o ka hoʻohana ʻana iā ia no kekahi manawa, e ʻike ʻia ke ʻano keʻokeʻo ma ka pā. Loaʻa ka hopena ikaika o nā mea pāʻani i ka honua i ka wā o ka hoʻomaʻamaʻa ʻana, a ʻo ka ʻili o ia mau moena papahele e maʻalahi i ka creases. ʻO nā moena papahele polyethylene he waxy a palupalu a pale i ka paʻi ʻana, akā ʻo kēia mau mea maʻamau ka huʻa. E komo ka hou o ka poʻe haʻuki i loko o ka moena papahele i ka wā e hoʻohana ʻia ai, ʻaʻole lākou e maloʻo ma hope o ka palaki ʻia. Ua hoʻomaikaʻi ʻo Jiangyin Civilized Sports Plastic Co., Ltd. i ka moena papahele gymnastics. ʻO ka moena papahele gymnastics i hoʻomaikaʻi ʻia i kahi papa honua a me kahi papa kumu: ʻo ka papa honua he ethylene vinyl acetate copolymer me ka mānoanoa o 0.5 ~ 3.0 mm, ʻo ka papa kumu mua he papa PVC me ka mānoanoa o 10 ~ 30 mm, a ʻo ka papa lua o ke kumu he polyethylene nui loa me ka mānoanoa o 5 ~ 20 mm. Hoʻopili pono ʻia ka ʻili o ka ʻili me ka papa kumu. Hiki ke pāʻani i kahi ʻano cushioning maikaʻi i ka papa gymnastics multilayer composite. Ma hope o ka lōʻihi o ka hoʻohana ʻana, ʻaʻole maʻalahi ka ʻili o ka ʻili a me ka seepage wai, hiki ke holoi ʻia me ka wai, a he lōʻihi ke ola lawelawe, kūpono ia no ka hoʻomaʻamaʻa ʻana i nā gymnasts.


2. Pepa polyethylene


  ʻO ka pepa poliethylene, 'oi loa ka ultra-ki'eki'e pili i ka polyethylene pepa kaumaha, hiki ke ho'ohana 'ia e hana i ka skating ground, apron of skating rink, ground of roller skating rink, slide of amusement park, slide, sled skateboard, a ho'ohana nui 'ia ma ke kahua ho'okele. Hana ʻo Shanxi Zhongke Tiancheng Science and Technology Development Co., Ltd. i ka pepa polyethylene kaumaha ultra-kiʻekiʻe ma ka hoʻoheheʻe ʻana ma o ka hoʻohui ʻana i ka 0.3% o ka polymer wax a me ka 0.2% o ka stearic acid flow improver i loko o ka polyethylene kaumaha nui. ʻO nā kūlana hana o ke kaʻina hana hoʻoheheʻe ʻia: ʻo ke kaomi wela ʻo 51MPa, ʻo ka mahana he 200 ℃, a ʻo ka manawa he 90 mau minuke; ʻO 22 MPa ke anu anuanu, 65 ℃ ka mahana, a ʻo 210 min ka manawa. Ua hoʻomākaukau ʻo Shandong Baoerpu Industry Co., Ltd. i kahi pepa polyethylene molecular kiʻekiʻe kiʻekiʻe me ke kūpaʻa kiʻekiʻe o ka wā, ʻo ia ka 0.3% kala masterbatch, 1010.6% antioxidant, Tinuvin 327/328 0.5% ultraviolet light absorber, Chimassorb2020 0.5% i kāohi ʻia. amine māmā stabilizer, a me ka mea kumu he ultra-kiʻekiʻe pili molecular kaumaha polyethylene pauka me viscosity awelika molecular kaumaha oi aku mamua o 150 x 10 ^ 4. Ka hoomakaukau ana penei: hoʻohui i ka mea i loko o ka mixer a hoʻoulu ia no 20 min, a laila e hoʻomoe i ka palahalaha i loko o ka lua poni o ka mīkini hoʻoheheʻe, e hoʻokiʻekiʻe i ka mahana i 260 ℃, e mālama i ke kaomi ma 6 MPa, a hoʻomau no 4 mau hola a hiki i ka hoʻoheheʻe ʻana o ka mea. E hooluolu i ka lua a hoʻokiʻekiʻe i ke kaomi i 7 MPa e hana i ka pepa polyethylene kaumaha nui loa. Hiki ke kiʻi ʻia ka pepa polyethylene kaumaha ultra-kiʻekiʻe me ke kūpaʻa kiʻekiʻe o ka wā ma ke kaomi ʻana a me ka demoulding. Hiki ke hoʻokaʻawale ʻia kēia ʻano pā e Qiaoa, a kūpono ia no ka hana ʻana i nā mea kōkua kai, nā buoys no nā haʻuki wai, a me nā mea ʻē aʻe.


  Hiki ke waiho ʻia ka skateboard simulated i loko o ke kahua pāʻani a i ʻole i ka lewa ākea, nona nā mea maikaʻi o ke kumu kūʻai haʻahaʻa, ka wehe ʻana a me ka loaʻa i nā kau āpau. Hoʻohana ʻo Beijing Zhongʻao Jinmiao Cultural Goods Co., Ltd. i ka polyethylene, polydimethylsiloxane a me ka nano antioxidant N, N '- II (β Polyethylene ice board i hoʻomākaukau ʻia mai ka mononaphthyl) p-phenylenediamine, nano quartz one, propylene glycol methyl ether acetate a me nā puaʻa. . Ua hoʻomākaukau ʻo Henan Jinhang Engineering Plastics Co., Ltd. i nā papa hoʻohālike hau kiʻekiʻe kiʻekiʻe e pili ana i ka molecular weight polyethylene (UHMWPE) me ka hoʻohana ʻana i ka polyethylene kaumaha ultra-kiʻekiʻe, mea hoʻohui, lubricant, nā pahu aniani a i ʻole ka pauka talc, ka mea keʻokeʻo fluorescent, ka uila uila ultraviolet. , antioxidant B215, lubricant microspheres, mineral oil microspheres, a me nucleating agent. Hoʻohana ʻo Rizhao Junqian Outdoor Products Co., Ltd. i nā bolts e hoʻoponopono a hoʻohui i nā papa. Ma ka hoʻonui ʻana a i ʻole ka hōʻemi ʻana i ka nui o nā papa, hiki ke hoʻomalu ʻia ka nui o ka pūnaewele. Hiki ke hoʻohana ʻia ma ke ʻano he skating rink a me ka wai ʻauʻau. He maʻalahi ke wehe a neʻe. Ua hoʻomohala ʻo Shandong Baoerpu Industrial Co., Ltd. i kahi ala no ka hoʻoheheʻe ʻia ʻana o nā ʻāpana polyethylene kaumaha ultra-high molecular weight. ʻO ka mea mua, e hana ʻia ka hui pū, a ʻo nā ʻaoʻao o nā ʻāpana polyethylene kaumaha ultra-kiʻekiʻe e hoʻopili ʻia e hoʻopili ʻia me ka gradient o 40 °; E hoʻopaʻa i nā ʻāpana ʻelua ma luna o nā mea hoʻoheheʻe wela, a hoʻopiha i nā ʻāpana me ka ultra-high molecular weight polyethylene sheet powder i loaʻa ka 1.6% o ka hapa nui o nā mea hoʻohui a me 0.3% o ka hapa nui o ka masterbatch kala, ʻo ia ka 10 mm ke kiʻekiʻe. ma mua o ka ʻili o ka pā; Hoʻohana ʻia nā mea hoʻoheheʻe seamless no ka hoʻomehana a me ke kaomi. ʻO ka mahana a me ke kaomi e like me nā mea e hoʻomākaukau ana i ka pepa polyethylene kaumaha ultra-kiʻekiʻe a lōʻihi no 60 min. ʻO ka mea hope loa, hoʻomaʻamaʻa maoli ʻia a kaomi ʻia i 12 MPa. Ma hope o 120 min, hoʻohaʻahaʻa ʻia a hoʻihoʻi ʻia. ʻO ka hiʻohiʻona a me nā waiwai kino o nā papa ma ka hui pū e kūlike me ke kaumaha molekala kiʻekiʻe nā papa polyethylene.


Papa HDPE


3. Panina


  Hoʻohana nui ʻia nā huahana polyethylene i nā ʻano like ʻole i ka pā haʻuki, hiki ke hoʻomaikaʻi i ka lōʻihi, ka hopena o ka hopena, ke kū ʻana o ka wela, ka hana haʻalulu vibration o nā mea haʻuki. ʻAʻole hiki iā ia ke hōʻoluʻolu i ka poʻe haʻuki e pili ana i nā haʻuki, akā pale pū kekahi i nā mea pāʻani, hoʻolōʻihi i ke ola lawelawe o nā mea haʻuki a hoʻemi i nā kumukūʻai hana.


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