Chii chinonzi EVA material? Kuongorora kwakadzama kwehunhu uye mashandisirwo eEVA zvinhu
EVA chinhu chakajairika uye chinoshandiswa zvakanyanya muindasitiri yemakemikari, chii EVA? Muchinyorwa chino, isu tichazivisa zvakadzama maitiro ekutanga eVA, maitiro ekugadzira uye mashandisiro ayo mumaindasitiri akasiyana kuti ikubatsire iwe kunzwisisa zviri nani iyi yakawanda-inoshanda zvinhu.
Kutanga, iyo yekutanga tsananguro uye kuumbwa kweEva
EVA (ethylene vinyl acetate copolymer) chinhu chepolymer chakagadzirwa kubva kucopolymerization ye ethylene uye vinyl acetate (VA). Chimiro chayo chemakemikari chinogadzirisa kushanduka kwayo kwakanakisisa, kupikisa kwemakemikari uye kuderera kunyunguduka.Unhu hweEVA hunogona kugadziriswa nekushandura zvinyorwa zvevinyl acetate, iyo yakakwirira yezvinyorwa, zviri nani kushanduka kwezvinhu, asi simba remagetsi rinoderedzwa.
Chechipiri, maitiro ekugadzira EVA
Kugadzirwa kweEVA kunonyanya kuburikidza ne-high-pressure polymerisation reaction. Muchirongwa chepolymerisation, ethylene uye vinyl acetate pakupisa kwepamusoro uye kudzvanywa kwepamusoro kuburikidza nemahara radical initiator copolymerization, kuumbwa kwehuwandu hwakasiyana hweVA EVA resin. Kugadziriswa kwemaitiro ekugadzira kunogona kukanganisa mashandiro echinyorwa, semuenzaniso, yakakwirira vinyl acetate yemukati inogona kuwedzera kujeka uye kupfava kweEVA, EVA resin inogona kugadziridzwa zvakare kuita firimu, shizha kana furo zvinhu, zvinoshandiswa mumhando dzakasiyana dzemaindasitiri.
Chechitatu, hukuru hunhu hweEva zvinhu
EVA zvinhu zvinoshandiswa zvakanyanya nekuda kweiyo yakasarudzika yemuviri uye makemikari zvimiro. Iine yakanaka kuchinjika uye elasticity, kunyange panguva yakadzika tembiricha inogona kuramba yakapfava.EVA ine yakanakisa kukanganisa kupikisa uye kusagadzikana kweabrasion, iyo inoita kuti ive mukudiwa kwekugara uye kuchengetedzwa kwekushandiswa kwemhando yepamusoro yekuita.EVA zvinhu zvinewo kupikisa kwakanaka kune ultraviolet mwaranzi uye kupikisa kwemakemikari, izvo zvinoita kuti ive yakakodzera kushandiswa kwekunze.
Chechina, nzvimbo dzekushandisa dzeEva zvinhu
Mushure mekunzwisisa kuti chii chinonzi EVA zvinhu, ngatitarisei nzvimbo dzayo huru dzekushandisa, EVA zvinhu zvinoshandiswa zvakanyanya mukugadzira shangu, kunyanya mukugadzirwa kwemasoles uye midsoles, nekuda kwekuita kwayo kwakanaka kwekuita uye huremu hunhu hunofarirwa, EVA inoshandiswawo muindasitiri yekurongedza, yakagadzirwa nefuro rinodzivirira kana firimu, rinoshandiswa mukugadzirwa kwemagetsi kurongedza, EVA zvishoma nezvishoma mukugadzira zvigadzirwa zvekurapa. EVA iri kuwedzerawo zvishoma nezvishoma kushandiswa kwayo muindasitiri yezvokurapa, inonyanya kushandiswa kugadzira mabhegi ekupinza uye kurongedza kwemishonga.
Chechishanu, ramangwana rekusimudzira maitiro eEVA zvinhu
Nekukwidziridzwa kwekuziva kwezvakatipoteredza, EVA zvinhu zvakare zviri munzira yekusimudzira kwakasimba. Inoshatisa EVA yezvishandiso tsvakiridzo iri kuzara, ramangwana rinogona kuunza zvakatipoteredza zvine hushamwari EVA zvinhu kuti zvizadzise zvinodikanwa zvenzvimbo dzakasiyana. Nekufambira mberi kwesainzi uye tekinoroji, kuita kweEVA zvinhu kunotarisirwa kuvandudzwa, kuvhura mamwe mamiriro ekushandisa.
Mhedziso
EVA chinhu chine kuita kwakanyanya uye kuwanda kwekushandisa. Kuburikidza nekusuma kwechinyorwa chino, iwe unofanirwa kuve nekunzwisisa kwakadzama kwenyaya ye "chii EVA zvinhu". Zvingave muhupenyu hwezuva nezuva, zvigadzirwa zvemaindasitiri, kana michina yekurapa, EVA zvinhu zvinoita basa rakakosha. Mune ramangwana, nekufambira mberi kwetekinoroji uye zvinodiwa zvekuchengetedza kwezvakatipoteredza, kushandiswa kwezvinhu zveEVA kuchawedzera tarisiro.