Zvese zviri zviviri zvinoparadzira uye mafuta ekuzora anowanzo shandiswa ekuwedzera mune epurasitiki ruvara rwekuenzanisa.Kana izvi zvekuwedzera zvikawedzerwa kune zvakabikwa zvechigadzirwa, zvinofanirwa kuwedzerwa kune resin mbishi zvinhu muchikamu chimwe chete muruvara chinoenderana proofing, kuitira kudzivirira mutsauko wemavara mukugadzirwa kunotevera.
Mhando dzezvinoparadzira ndeidzi: fatty acid polyureas, base stearate, polyurethane, oligomeric soap, etc. Madhizaini anonyanya kushandiswa muindasitiri ndeyemafuta.Mafuta ekuzora ane yakanaka yekuparadzira zvivakwa, uye anogona zvakare kuvandudza fluidity uye mold kuburitsa zvimiro zvepurasitiki panguva yekuumbwa.
Mafuta ekuzora akapatsanurwa kuita mafuta emukati uye ekunze ekunze.Mafuta emukati ane kumwe kuwirirana neresin, izvo zvinogona kuderedza kubatana pakati pe resin molecular cheni, kuderedza kunyunguduka viscosity, uye kugadzirisa fluidity.Iko kugarisana pakati pemafuta ekunze uye resin, inonamatira pamusoro peiyo resin yakanyungudutswa kuti iite lubricating molecular layer, nekudaro ichideredza kupokana pakati peresin nemidziyo yekugadzirisa.Mafuta ekuzora anonyanya kukamurwa muzvikamu zvinotevera zvichienderana nechimiro chavo chemakemikari:
(1)) Kirasi yekupisa separafini, polyethylene wax, polypropylene wax, micronized wax, nezvimwe.
(2) Fatty acids senge stearic acid uye base stearic acid.
(3) Fatty acid amides, esters yakadai sevinyl bis-stearamide, butyl stearate, oleic acid amide, etc. Inonyanya kushandiswa pakuparadzira, umo bis-stearamide inoshandiswa kune zvose thermoplastics uye thermosetting plastiki, uye ine lubricating effect. .
(4) Sipo dzesimbi dzakaita se stearic acid, zinc stearate, calcium stearate, poto stearate, magnesium stearate, lead stearate, nezvimwewo zvine zvese kudzikamisa kwekupisa uye mhedzisiro yekuzora.
(5) Mafuta ekuzora anoita basa mukuburitsa mold, senge polydimethylsiloxane (methyl silicone mafuta), polymethylphenylsiloxane (phenylmethyl silicone mafuta), polydiethylsiloxane (ethyl silicone mafuta) nezvimwe.
Mukuita jekiseni rekugadzira, kana yakaoma coloring inoshandiswa, kurapa kwepamusoro senge chena mineral oiri uye diffusion mafuta zvinowanzowedzerwa panguva yekusanganiswa kuita basa rekushambadza, lubrication, diffusion uye kuburitsa mold.Paunenge uchipenda, izvo zvakasvibirira zvinofanirwa kuwedzerwa muchikamu chepakati kuendesa.Kutanga wedzera mushonga wepamusoro uye uparadzire zvakaenzana, wobva wawedzera toner uye kupararira.
Paunenge uchisarudza, kupisa kwekushisa kweanoparadzira kunofanirwa kutariswa zvinoenderana nekushisa kwekuumbwa kwepurasitiki mbishi zvinhu.Kubva pakuona kwemutengo, mumusimboti, iyo dispersant inogona kushandiswa pane yepakati uye yakaderera tembiricha haifanirwe kusarudzwa nekuda kwekushisa kwakanyanya.Iyo yakanyanya tembiricha dispersant inoda kushingirira kusvika pamusoro pe250 ℃.
References:
[1] Zhong Shuheng.Kuumbwa Kwemavara.Beijing: China Art Publishing House, 1994.
[2] Rwiyo Zhuoyi et al.Plastic raw materials uye additives.Beijing: Sainzi uye Tekinoroji Literature Publishing House, 2006.
[3] Wu Lifeng et al.Masterbatch User Manual.Beijing: Chemical Industry Press, 2011.
[4] Yu Wenjie et al.Plastic Additives uye Formulation Design Technology.3rd Edition.Beijing: Chemical Industry Press, 2010.
[5] Wu Lifeng.Plastic Coloring Formulation Design.2nd Edition.Beijing: Chemical Industry Press, 2009
Nguva yekutumira: Jun-25-2022