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

He resin thermoplastic ka Polyethylene me ke kūpaʻa haʻahaʻa haʻahaʻa maikaʻi loa, ka insulation uila a me ke kūpaʻa i ka hapa nui o ka waikawa a me ka alkali corrosion, kahi i hoʻohana nui ʻia i ka hana ʻana a me ke ola. Hoʻohana nui ʻia nā huahana Polyethylene o nā ʻano like ʻole i ke kahua o nā lako haʻuki. I waena o lākou, hiki ke hoʻohana ʻia ka polyethylene fiber e hana i ka ʻupena racket a me ka pā hale hana; Hiki ke hoʻohana ʻia ka polyethylene foam e hana i ka moena gymnastics; Hiki ke hoʻohana ʻia ka papa HDPE e hana i ka buoy a me ka papa hau. Ma kēia pepa, ua nānā hou ʻia ka hoʻohana ʻana o ka polyethylene i ke kahua o nā lako 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 polyethylene plastic , ʻoiai ka pepa polyethylene kaumaha molekala kiʻekiʻe loa, hiki ke hoʻohana ʻia e hana i ke kahua heʻe hau, ka ʻapena o ka rink heʻe hau, ka ʻāina o ka rink heʻe hau wili, ka paheʻe o ka paka leʻaleʻa, ka paheʻe, ka skateboard sled, a ua hoʻohana nui ʻia hoʻi i ke kahua hoʻokele. Hana ʻo Shanxi Zhongke Tiancheng Science and Technology Development Co., Ltd. i ka pepa polyethylene kaumaha molekala kiʻekiʻe loa ma ka hoʻoheheʻe ʻana ma ka hoʻohui ʻana i ka 0.3% o ka polymer wax a me 0.2% o ka stearic acid flow improver i loko o ka polyethylene kaumaha molekala kiʻekiʻe. ʻO nā kūlana hana o ke kaʻina hana sintering hoʻoheheʻe: ʻo ke kaomi wela he 51MPa, ʻo ka mahana he 200 ℃, a ʻo ka manawa he 90 mau minuke; ʻO ke kaomi anuanu he 22 MPa, ʻo ka mahana he 65 ℃, a ʻo ka manawa he 210 min. Ua hoʻomākaukau ʻo Shandong Baoerpu Industry Co., Ltd. i kahi pepa polyethylene kaumaha molekala kiʻekiʻe loa me ke kūpaʻa kiʻekiʻe o ka wā, nona ka 0.3% color masterbatch, 1010.6% antioxidant, Tinuvin 327/328 0.5% ultraviolet light absorber, Chimassorb2020 0.5% hindered amine light stabilizer, a ʻo ke kumu he pauka polyethylene kaumaha molekala kiʻekiʻe loa me ke kaumaha molekala awelika o ka viscosity ma mua o 150 x 10 ^ 4. ʻO ke ʻano hoʻomākaukau penei: e hoʻohui i ka mea i loko o ka mea hui a hoʻoulu no 20 min, a laila e waiho pālahalaha i loko o ka lua mold 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 wā e hoʻoheheʻe loa ʻia ai ka mea. E hoʻomaʻalili i ka lua mold a hoʻokiʻekiʻe i ke kaomi i 7 MPa e hana i ka pepa polyethylene kaumaha molekala kiʻekiʻe loa. Hiki ke loaʻa ka pepa polyethylene kaumaha molekala kiʻekiʻe loa me ke kūpaʻa kiʻekiʻe o ka wā ma o ka hoʻomaha ʻana i ke kaomi a me ka demoulding. Hiki ke hoʻokaʻawale ʻia ke kala o kēia ʻano pā e Qiaoa, a kūpono ia no ka hana ʻana i nā mea kōkua kai, nā buoy no nā haʻuki wai, a pēlā aku. Eia nō naʻe, ua hoʻomaka ka pepa polyethylene kaumaha molekala kiʻekiʻe loa i hoʻomākaukau ʻia e nā ʻano hana maʻamau e hoʻokaʻawale ma hope o 3 mau makahiki.

Hiki ke waiho ʻia ka skateboard hoʻohālike i loko o ke kahua pāʻani a i ʻole ma ka lewa ākea, nona nā pono o ke kumukūʻai haʻahaʻa, hiki ke wehe ʻia a loaʻa i nā kau āpau. Hoʻohana ʻo Beijing Zhong'ao 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 pigments. Ua hoʻomākaukau ʻo Henan Jinhang Engineering Plastics Co., Ltd. i nā papa hoʻohālike hau polyethylene kaumaha molekala kiʻekiʻe loa (UHMWPE) me ka hoʻohana ʻana i ka polyethylene kaumaha molekala kiʻekiʻe loa, ka mea hoʻopili, ka lubricant, nā momi aniani a i ʻole ka pauka talc, ka mea hoʻokeʻokeʻo fluorescent, ka mea hoʻomoʻa kukui ultraviolet, ka antioxidant B215, nā microspheres lubricant, nā microspheres aila mineral, a me ka mea hoʻopili. Hoʻohana ʻo Rizhao Junqian Outdoor Products Co., Ltd. i nā bolts e hoʻopaʻa a hoʻohui i nā papa. Ma ka hoʻonui ʻana a i ʻole ka hōʻemi ʻana i ka helu o nā papa, hiki ke hoʻomalu ʻia ka nui o ke kahua. Hiki ke hoʻohana ʻia ma ke ʻano he rink skating a me kahi loko ʻauʻau. He maʻalahi ke wehe a hoʻoneʻe. Ua hoʻomohala pū ʻo Shandong Baoerpu Industrial Co., Ltd. i kahi ʻano hana no ka hoʻoheheʻe ʻana i nā pepa polyethylene kaumaha molekala kiʻekiʻe loa. ʻO ka mea mua, e hana ʻia ka hui butt, a ʻo nā ʻaoʻao o nā pepa polyethylene kaumaha molekala kiʻekiʻe ʻelua e hui pū ʻia me ka gradient o 40 °; E hoʻopaʻa i nā ʻauwaha ʻelua ma luna o nā lako hana hoʻoheheʻe wela, a hoʻopiha i nā ʻauwaha me ka pauka pepa polyethylene kaumaha molekala kiʻekiʻe loa e loaʻa ana he 1.6% o ka hapa nui o nā mea hoʻohui a me 0.3% o ka hapa nui o ka masterbatch kala, ʻo ia hoʻi he 10 mm ke kiʻekiʻe ma mua o ka ʻili o ka pā; Hoʻohana ʻia nā lako hana hoʻoheheʻe ʻole no ka hoʻomehana ʻana a me ke kaomi ʻana. ʻO ke ʻano o ka mahana a me ke kaomi ua like ia me nā mea i ke kaʻina hana o ka hoʻomākaukau ʻana i ka pepa polyethylene kaumaha molekala kiʻekiʻe loa a mau no 60 min. ʻO ka hope, ua hoʻomaʻalili kūlohelohe ʻia a kaomi ʻia i 12 MPa. Ma hope o 120 min, ua hoʻemi ʻia ke kaomi a hoʻihoʻi ʻia. Pono ke ʻano a me nā ʻano kino o nā papa ma ka hui hope e kūlike me nā papa polyethylene kaumaha molekala kiʻekiʻe loa.

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.