Intshayelelo ye EVA Hot Melt Adhesive

I-EVA eshushu encamathelayo inyibilika isinyibilikisi -simahla, amanzi -simahla, 100% eqinileyo, ipholima enefusible. Iqinile kwiqondo lobushushu begumbi kwaye iyanyibilika ibe yincamathela encamathelayo, ebonayo yolwelo xa ishushubezelelwa kwiqondo elithile. Emveni kokunyibilika, bumdaka obukhanyayo, buguquguqukayo okanye obucimayo{5}}into emhlophe. Inxalenye ephambili ye-adhesive ye-melt eshushu, i-resin esisiseko, i-copolymer ye-ethylene kunye ne-vinyl acetate phantsi koxinzelelo oluphezulu, idibaniswe ne-tackifiers, i-viscosity modifiers, i-antioxidants, njl., Ukudala i-adhesive eshushu enyibilikayo.

I-EVA yinto yeplastiki eyenziwe nge-ethylene (E) kunye ne-vinyl acetate (VA). Umlinganiselo wezi khemikhali zimbini unokuhlengahlengiswa ukuhlangabezana neemfuno ezahlukeneyo zokusetyenziswa. Umxholo ophezulu we-vinyl acetate (umxholo we-VA) uphumela ekuphuculeni ukucaca, ukuthamba, kunye nokuqina.

I-ethylene-i-vinyl acetate copolymer (ekwaziwa njenge-ethylene{1}}i-vinyl acetate copolymer) ifunyanwa ngokucombulula i-ethylene (E) kunye ne-vinyl acetate (VA). Igama layo lesiNgesi yi-Ethylene Viny Acetate, efinyeziweyo njenge-EVA okanye i-E/VAC. Iindlela zePolymerization zibandakanya i-polymerization ephezulu yoxinzelelo ({4}}yeeplastiki), i-polymerization yesisombululo (i-PVC processing aids), i-emulsion polymerization (i-adhesives), kunye ne-polymerization yokumiswa. I-Emulsion polymerization isetyenziselwa i-vinyl acetate (VA) umxholo ophezulu kuno-30%, ngelixa i-polymerization ephezulu yoxinzelelo isetyenziselwa umxholo we-VA ophantsi. I-EVA inoluhlu olubanzi lwezicelo.

Ngokuqhelekileyo, i-EVA enomxholo we-vinyl acetate ngaphantsi kwe-5% isetyenziselwa kakhulu iifilimu, i-LDPE modifiers yeengcingo kunye neentambo, kunye ne-adhesives; I-EVA enomxholo we-vinyl acetate ye-5% -10% isetyenziselwa iifilimu ze-elastic; I-EVA enomxholo we-vinyl acetate we-20% -28% isetyenziselwa ukunamathela okutshisa okutshisa kunye neemveliso zokugqoka; kunye ne-EVA enomxholo we-vinyl acetate we-5% -45% isetyenziselwa iifilimu (kubandakanywa neefilimu zezolimo) kunye namaphepha, i-injection ebunjiweyo kunye neemveliso ezibunjiweyo, iimveliso ezinogwebu, kunye ne-adhesives eshushu enyibilikayo. Isetyenziswa kakhulu kwizixhobo zezihlangu ezinogwebu, iifilim ezisebenzayo zegreenhouse, iipakethe zokubumba, izinto zokuncamathelisa ezinyibilikayo ezishushu, iingcingo kunye neentambo, kunye nezinto zokudlala.