EVA ndiyo yechina yakakura ethylene akatevedzana polymer mushure meHDPE, LDPE uye LLDPE.Zvichienzaniswa nezvinhu zvechinyakare, mutengo wayo wakaderera zvikuru.Vanhu vazhinji vanofunga kuti EVA foam material ndiyo yakakwana musanganiswa wegoko rakaomarara uye rakapfava goko, richichengeta zvakanakira furo rakapfava uye rakaomarara uchisiya zvipingamupinyi.Zvakare, kuchinjika kwemukati mukugadzira zvinhu uye kugona kugadzira zvakare chinhu chikuru mune mamwe makambani anotungamira pasirese uye mabhureki anotendeukira kuEVA foam kana zvemhando yepamusoro, zvinodhura zvekugadzira zvinodikanwa.
Kupfuura kuchinjika, EVA furo zvinhu zvine hanya nehupenyu hwedu hwezuva nezuva uye zviitiko zvebhizinesi, uye zvakaunza kufarirwa kwevashandisi vekupedzisira.Bhutsu, mishonga yemishonga, photovoltaic panels, mitambo uye zvigadzirwa zvekutandara, matoyi, flooring/yoga mats, kurongedza, midziyo yekurapa, giya rekudzivirira, wat.
Zvigadzirwa zvemitambo zviri mukuda kwakasimba kwezvigadzirwa zvepurasitiki zvinogara, uye chikamu chemusika weEVA foam chinoramba chichiunza kukura kutsva kwe.
丨EVA zvemuviri uye zvemagetsi zvivakwa
Izvo zvimiro zveEVA copolymers zvinonyanya kutsanangurwa neiyo vinyl acetate yemukati uye dhigirii remvura.Kuwedzera kweiyo VA yemukati kunowedzera density, pachena uye kuchinjika kwechinhu uku ichidzikisa nzvimbo yekunyungudika uye kuoma.Ethylene-vinyl acetate copolymer (EVA) chinhu chakanyanya elastic chinogona kucheneswa kuita furo-rakafanana nerabha, asi nesimba rakanakisa.Inopindika zvakapetwa katatu pane low density polyethylene (LDPE), ine tensile elongation ye 750%, uye ine tembiricha yekunyungudika inosvika 96°C.
Zvichienderana nezvinosanganiswa mukuita kwekugadzira, madhigirii akasiyana eEVA kuomarara anogona kuwanikwa.Izvo zvakakosha kuchengetedza mwero wepakati wekuomarara nekuti EVA haidzore chimiro chayo mushure mekumanikidza kunoramba kuripo.Kuenzaniswa neEVA yakaoma, yakapfava EVA hainyanyi kushingirira kubrasion uye ine hupenyu hupfupi mune yega, asi yakanyanya kugadzikana.
丨 EVA thermal properties
Iyo yekunyungudika yeEva inoderera nekuwedzera kweVA yemukati.Naizvozvo, tembiricha yekushandisa yecopolymer yakaderera kana ichienzaniswa neinofanana homopolymer (LDPE).Iyo yakanyanya tembiricha yekushanda ye workpiece ishoma pane tembiricha yekunyorovesa Vicat.Sezvineiwo ese mapolymers ethermoplastic, tembiricha zvinoenderana nehurefu uye nhanho yekushushikana kwemakanika uko iyo workpiece inoiswa mukupisa.Sezvo tembiricha ichiwedzera, tembiricha ye conductivity inodzikira kudzamara yasvika pabani riri padyo nenzvimbo yekunyungudika.
Nguva yekutumira: Sep-23-2022