Mejeeji dispersants ati lubricants ti wa ni commonly lo additives ni ṣiṣu awọ tuntun.Ti a ba ṣafikun awọn afikun wọnyi si awọn ohun elo aise ti ọja naa, wọn nilo lati ṣafikun si awọn ohun elo aise resini ni iwọn kanna ni ijẹrisi ibaramu awọ, nitorinaa lati yago fun iyatọ awọ ni iṣelọpọ atẹle.
Awọn orisi ti dispersants ni o wa: fatty acid polyureas, mimọ stearate, polyurethane, oligomeric ọṣẹ, bbl Awọn julọ commonly lo dispersants ninu awọn ile ise ni o wa lubricants.Awọn lubricants ni awọn ohun-ini pipinka ti o dara, ati pe o tun le mu imudara ati awọn ohun-ini itusilẹ m ti awọn pilasitik lakoko mimu.
Awọn lubricants ti pin si awọn lubricants inu ati awọn lubricants ita.Awọn lubricants inu ni ibaramu kan pẹlu awọn resini, eyiti o le dinku isọdọkan laarin awọn ẹwọn molikula resini, dinku iki yo, ati imudara ṣiṣan.Ibamu laarin lubricant ita ati resini, o faramọ oju ti resini didà lati ṣe fẹlẹfẹlẹ kan ti molikula lubricating, nitorinaa idinku ija laarin resini ati ohun elo iṣelọpọ.Awọn lubricants ni pataki pin si awọn ẹka wọnyi gẹgẹbi ilana kemikali wọn:
(1)) Kilasi sisun gẹgẹbi paraffin, epo-eti polyethylene, epo-eti polypropylene, epo-eti micronized, ati bẹbẹ lọ.
(2) Awọn acids fatty gẹgẹbi stearic acid ati ipilẹ stearic acid.
(3) Fatty acid amides, esters gẹgẹbi vinyl bis-stearamide, butyl stearate, oleic acid amide, ati bẹbẹ lọ. O ti wa ni akọkọ lilo fun pipinka, ninu eyiti bis-stearamide ti wa ni lilo fun gbogbo thermoplastics ati thermosetting ṣiṣu, ati ki o ni ipa lubricating. .
(4) Awọn ọṣẹ irin gẹgẹbi stearic acid, zinc stearate, kalisiomu stearate, ikoko stearate, iṣuu magnẹsia stearate, asiwaju stearate, bbl ni imuduro igbona mejeeji ati awọn ipa lubricating.
(5) Awọn lubricants ti o ṣe ipa ninu itusilẹ mimu, gẹgẹbi polydimethylsiloxane (epo silikoni methyl), polymethylphenylsiloxane (epo silikoni phenylmethyl), polydiethylsiloxane (epo silikoni ethyl) ati bẹbẹ lọ.
Ninu ilana imudọgba abẹrẹ, nigbati o ba lo awọ gbigbẹ, awọn aṣoju itọju dada gẹgẹbi epo nkan ti o wa ni erupe funfun ati epo kaakiri ni a ṣafikun ni gbogbogbo lakoko idapọ lati ṣe ipa ti adsorption, lubrication, itankale ati itusilẹ m.Nigbati o ba ni awọ, awọn ohun elo aise yẹ ki o tun fi kun ni iwọn imuṣiṣẹ alabọde.Ni akọkọ ṣafikun oluranlowo itọju oju ati tan kaakiri, lẹhinna ṣafikun toner ki o tan kaakiri.
Nigbati o ba yan, iwọn otutu resistance ti dispersant yẹ ki o pinnu ni ibamu si iwọn otutu mimu ti ohun elo aise ṣiṣu.Lati irisi ti iye owo, ni opo, awọn dispersant ti o le ṣee lo ni alabọde ati kekere otutu ko yẹ ki o yan fun ga otutu resistance.Dispersant ti o ga otutu nilo lati wa ni sooro si loke 250 ℃.
Awọn itọkasi:
[1] Zhong Shuheng.Awọ Tiwqn.Beijing: Ilé Ìtẹ̀jáde Iṣẹ́ Ọnà Ṣáínà, Ọdún 1994.
[2] Orin Zhuoyi et al.Ṣiṣu aise ohun elo ati awọn additives.Ilu Beijing: Ile-itẹjade Iwe-akọọlẹ Imọ-ẹrọ ati Imọ-ẹrọ, 2006.
[3] Wu Lifeng et al.Masterbatch olumulo Afowoyi.Beijing: Kemikali Industry Press, 2011.
[4] Yu Wenjie et al.Ṣiṣu Additives ati Formulation Design Technology.3rd Edition.Beijing: Kemikali Industry Press, 2010.
[5] Wu Lifeng.Ṣiṣu Colouring Design.2nd Edition.Beijing: Kemikali Industry Press, 2009
Akoko ifiweranṣẹ: Jun-25-2022