📋 Hauv kab lus no
- HLB Value yog dab tsi?
- The HLB Scale and What the Numbers Mean
- How to Calculate and Use HLB in Formulation
- SPAN 80: Properties, HLB, and Why It Matters
- Tsev Neeg Tag Nrho Sorbitan Ester: Span 20 txog Span 85
- Pairing SPAN 80 nrog Tween 80: Tus Co-Emulsifier Strategy
- SPAN 80 Daim ntawv thov thoob plaws kev lag luam
- Cov Lus Qhia Tshwj Xeeb thiab Sourcing SPAN 80
- FAQ
- Hu rau Sinolook Chemical
💧 1. What is HLB Value?
HLB stands forHydrophilic{0}}Lipophilic Balance. Nws yog tus lej ntsuas - Ameslikas tsim los ntawm William C. Griffin ntawm Atlas Chemical Industries hauv 1949 - uas piav qhia txog kev txheeb ze ntawm surfactant lossis emulsifier rau dej piv rau roj. Tus HLB tus lej siab dua, dej ntau dua -hlub (hydrophilic) molecule; tus lej qis dua, cov roj ntau dua -hlub (lipophilic) nws yog.
Hauv cov ntsiab lus siv tau, HLB tus nqi yog tib yam khoom tseem ceeb tshaj plaws kom phim thaum xaiv cov emulsifier rau kev tsim. Tau txais nws txoj cai thiab koj emulsion ruaj khov; tau txais nws tsis ncaj ncees lawm thiab koj yuav pom cov theem sib cais, creaming, lossis inversion tsis hais txog kev sib xyaw ua ke lossis emulsifier concentration.
💡 Lub Ntsiab Lus
Txhua theem roj muaj qhov "yuav tsum tau HLB" - emulsifier HLB uas tsim cov emulsion ruaj khov nrog cov roj ntawd. Txhua emulsifier muaj "HLB tiag." Koj txoj haujlwm ua tus tsim qauv yog kom phim ob qho tib si. Thaum lawv sib dhos, koj tau ruaj khov, ntev - emulsions kav ntev. Thaum lawv sib txawv los ntawm ntau tshaj 2-3 units, instability yuav luag inevitable.
HLB also predicts thehomntawm emulsion uas yuav tsim. Tsawg-HLB emulsifiers txhawb dej-hauv- roj (W/O) emulsions - roj yog cov theem tsis tu ncua, cov dej ntws tawm mus. High-HLB emulsifiers txhawb roj-hauv- dej (O/W) emulsions - dej yog cov theem tsis tu ncua, cov roj tee tau tawg. Qhov no yog qee zaum hu ua Bancroft's Rule thiab yog ib qho ntawm cov cuab yeej ua tau zoo tshaj plaws hauv kev tshawb fawb colloid.
📏 2. The HLB Scale and What the Numbers Mean
Griffin tus thawj HLB nplai khiav ntawm 0 mus rau 20, txawm tias qee qhov txuas ntxiv mus siab dua rau ethoxylated surfactants. Nov yog yam uas txhua cheeb tsam ntawm qhov teev qhia koj txog tus cwj pwm molecule:
| HLB Range | Muaj nuj nqi | Daim ntawv thov | Piv txwv li Emulsifier |
|---|---|---|---|
| 1.5–3.0 | W/O emulsifier | Dej-hauv- roj cream, tshuaj pleev, W/O drilling kua | Span 85 (HLB 1.8) |
| 3.5–6.0 | W / O emulsifier / antifoam | W/O emulsions, ua npuas ncauj supple, ua liaj ua teb adjuvants | Span 80 (HLB 4.3), Span 60 (HLB 4.7) |
| 7.0–9.0 | Tus neeg sawv cev ntub dej / sib kis | Spreading agents, penetrant formulations | Span 20 (HLB 8.6) |
| 10.0–13.0 | O / W emulsifier | Lotions, kua emulsions, O / W zaub mov emulsions | Tween 80 (HLB 15.0), PEG 400 Oleate |
| 14.0–18.0 | Solubilizer / detergent | Clear kua formulations, microemulsions, detergency | Polysorbate 20 (HLB 16.7) |
🧮 3. How to Calculate and Use HLB in Formulation
3.1 Griffin's HLB Formula
Rau cov uas tsis yog -ionic emulsifiers muab los ntawm polyhydric alcohols thiab fatty acids (xws li sorbitan esters), Griffin txhais HLB xws li:
HLB=20 × (Mh / M)
Qhov twgMh= molecular hnyav ntawm qhov hydrophilic feem |M= tag nrho molecular hnyav
Rau Span 80 (sorbitan monooleate), qhov hydrophilic feem yog lub nplhaib sorbitan thiab nws pawg hydroxyl. Lub cev hnyav molecular yog kwv yees li 428.6 g / mol, thiab cov hydrophilic feem me me - yielding lub qhov dej- paub HLB ntawm4.3.
3.2 Required HLB of Common Oil Phases
Txhua cov roj muaj tus yam ntxwv "yuav tsum tau HLB" rau kev pom O / W emulsification. Rau W / O emulsification, qhov xav tau HLB feem ntau yog 3-6 units qis dua O / W tus nqi xav tau. Cov lus hauv qab no teev cov roj formulated feem ntau:
| Roj / Fat Phase | Required HLB (O/W) | Required HLB (W/O) |
|---|---|---|
| Mineral roj (lub teeb) | 10–12 | 4 |
| Beeswax | 9–11 | 5 |
| Cetyl cawv | 13–16 | - |
| Castor roj | 14 | - |
| Petrolatum / dawb mos paraffin | 7–8 | 4 |
| Silicone roj (PDMS) | 10–12 | 3–4 |
| Cov roj zaub (sunflower, txiv ntseej) | 7–10 | 3–4 |
| Stearic acid | 15–17 | - |
3.3 Blending Emulsifiers to Hit a Target HLB
Ib qho tseem ceeb tshaj plaws ntawm HLB txoj kev xav yog tias qhov ua tau zoo HLB ntawm kev sib xyaw emulsifier yog qhov yooj yim.hnyav nruab nrabof HLB values. Qhov no tso cai rau cov neeg tsim khoom los ua ke qhov qis -HLB emulsifier (xws li Span 80) nrog siab -HLB ib qho (zoo li Tween 80) txhawm rau ntaus txhua lub hom phiaj HLB tus nqi meej.
🧮 Ua piv txwv: Targeting HLB 10 for a Mineral Oil O/W Emulsion
- Required HLB for mineral oil (O/W) =10
- Emulsifier A: Span 80, HLB=4.3
- Emulsifier B: Tween 80, HLB=15.0
- Cia X=feem ntawm Span 80 hauv kev sib xyaw
- 4.3X + 15.0(1−X) = 10 → X = 0.467
- Yog li ntawd:46.7% Span 80 + 53.3% Tween 80HLB 10
Tag nrho cov emulsifier theem nyob rau hauv lub formulation yog feem ntau 1-5% w / w. Pib ntawm 3% thiab ua kom zoo los ntawm qhov ntawd raws li kev ntsuas kev ruaj ntseg.
🔬 4. SPAN 80: Properties, HLB, and Why It Matters
SPAN 80 yog lub npe lag luam rauSorbitan Monooleate(CAS 1338-43-8), ib qho ester tsim los ntawm cov tshuaj tiv thaiv ntawm sorbitol nrog oleic acid nyob rau hauv lub cev qhuav dej. Lub nplhaib sorbitan - cyclic dehydration khoom ntawm sorbitol - tsim cov tub ntxhais hydrophilic, thaum C18: 1 oleate saw muab cov lipophilic tus Tsov tus tw.
| Khoom | Tus nqi | Qhov tseem ceeb |
|---|---|---|
| INCI npe | Sorbitan Oleate hmoov | Siv rau ntawm cov khoom siv tshuaj pleev ib ce |
| CAS Nr | 1338-43-8 | Rau cov ntaub ntawv tswj hwm |
| HLB Value | 4.3 | W/O emulsifier / roj- soluble surfactant |
| Molecular Luj | 428.6 g / mol | Ib leeg fatty acid ester (mono) |
| Qhov tshwm sim | Amber viscous kua | Pourable ntawm chav tsev kub |
| Viscosity (25 degree) | ~ 1,000–1,200 mPa·s | Nruab nrab viscous; tej zaum yuav tau ua kom sov los tuav |
| Ceev (20 degree) | ~ 1.00–1.01 g/cm³ | Muaj txiaj ntsig rau kev suav tshuaj |
| Acid nqi | Tsawg dua lossis sib npaug li 8.0 mg KOH / g | Quality / freshness qhia |
| Saponification Tus nqi | 145-160 mg KOH/g | Ester cov ntsiab lus pom zoo |
| Solubility | Dispersible nyob rau hauv dej; soluble nyob rau hauv cov roj | Yuav tsum tau yaj hauv cov roj theem ua ntej |
| Flash Point | >200 degree | Tsis yog -flammable nyob rau hauv ib txwm ua |
| Biodegradability | Yooj yim biodegradable | Environmentally haum profile |
4.1 Why HLB 4.3 Makes SPAN 80 Special
HLB 4.3 sits in the sweet spot fordej-hauv- roj emulsification. Nws yog roj-soluble txaus kom yaj huv si rau hauv feem ntau cov theem lipophilic, tab sis nws tsuas muaj ib tug txaus hydrophilic cim rau thauj tog rau nkoj nws tus kheej ntawm cov roj- dej interface thiab txo interfacial nro zoo. Tsis muaj lwm yam kev ntsuas kwv yees SPAN 80's formulation lub luag haujlwm ncaj qha raws li tus lej no.
Cov oleate (C18: 1) saw tseem ua lub luag haujlwm tseem ceeb. Piv rau saturated fatty acid sorbitan esters (xws li Span 60, uas siv stearic acid), ob daim ntawv cog lus hauv cov saw hlau oleate khaws cov molecule.kua ntawm chav tsev kubthiab muab nws superior compatibility nrog unsaturated roj theem xws li zaub roj, silicone roj, thiab hluavtaws esters. Span 60, txawm tias zoo li HLB, yuav yog cov khoom siv waxy uas yuav tsum tau yaj ua ntej siv.
🌐 5. Tsev Neeg Tag Nrho Sorbitan Ester: Span 20 txog Span 85
Kev lag luam "Span" series npog ntau yam ntawm fatty acid saw ntev thiab qib ntawm esterification, muab cov qauv tsim cov cuab yeej uas nthuav tawm HLB 1.8 txog 8.6. Txhua qib occupies ib tug txawv functional niche:
| Qib | Tshuaj npe | HLB | Lub cev lub xeev | Kev siv thawj zaug |
|---|---|---|---|---|
| Span 20 | Sorbitan Monolurate | 8.6 | Amber kua | Wetting tus neeg sawv cev, emulsifier rau cov roj polar |
| Span 40 | Sorbitan Monopalmitate hmoov | 6.7 | Cov tawv tawv | Thickener / W / O emulsifier |
| Span 60 | Sorbitan Monostearate | 4.7 | Waxy khoom (mp ~ 50 degree) | W/O emulsifier hauv kub - txheej txheem formulations |
| Span 80 ★ | Sorbitan Monooleate | 4.3 | Amber kua | W / O emulsifier, feem ntau siv qib |
| Sib 83 | Sorbitan Sesquioleate | 3.7 | Amber kua | W/O emulsions xav tau qis dua HLB |
| Span 85 | Sorbitan Trioleate yog qhov zoo tshaj plaws | 1.8 | Amber kua | Heev W/O, drilling kua, ATEX-sensitive |
💡 Vim Li Cas Span 80 Dominates Market
Span 80 tso nyiaj rau feem ntau ntawm sorbitan ester noj thoob ntiaj teb rau ib qho laj thawj yooj yim: nws tsuas yog kua - xeev qib hauv HLB 4-5 ntau yam. Span 60 muaj ze li ntawm HLB tab sis yuav tsum tau yaj los siv. Nyob rau hauv ambient-kub txheej txheem - los ntawm kws tshuaj emulsification mus rau teb-mixed ua liaj ua teb adjuvants - kua SPAN 80 tsuas yog siv tau yooj yim dua.
⚗️ 6. Pairing SPAN 80 with Tween 80: The Co-Emulsifier Strategy
Qhov feem ntau classic emulsifier khub hauv formulation chemistry yogSPAN 80 + Tween 80. Tween 80 (Polysorbate 80) yog ethoxylated derivative ntawm SPAN 80 - structurally nws yog SPAN 80 nrog kwv yees li 20 moles ntawm ethylene oxide ntxiv rau sorbitan hydroxyl pawg. Qhov no hloov HLB los ntawm 4.3 mus rau 15.0 thiab tig lub molecule los ntawm roj-soluble rau dej{10}}soluble.
Ua ke, khub tuaj yeem sib xyaw hla tag nrho HLB spectrum ntawm 4.3 txog 15.0. Cov lus hauv qab no qhia txog kev sib xyaw ua ke rau cov hom phiaj HLB qhov tseem ceeb:
| Target HLB | % SPAN 80 (HLB 4.3) | % Tween 80 (HLB 15.0) | Hom kev siv |
|---|---|---|---|
| 4–5 | 90–100% | 0–10% | W / O emulsions, barrier cream, W / O drilling kua |
| 7–8 | 65–70% | 30–35% | Wetting / nthuav tawm formulations |
| 10 | ~47% | ~53% | Lub teeb ntxhia roj O / W emulsions, lotions |
| 12–13 | 25–30% | 70–75% | Hnyav O / W emulsions, tshuaj pleev xim |
✅ Tswv yim tswv yim: Ntxiv SPAN 80 rau Roj Phaj, Tween 80 rau Phase Dej
Vim tias SPAN 80 yog roj-soluble, dissolve nws nyob rau hauv cov roj theem ua ntej emulsification. Tween 80, ua dej -soluble, yuav tsum tau yaj nyob rau hauv lub aqueous theem. Thaum ob theem sib xyaw ua ke thiab sib xyaw ua ke, cov emulsifiers sib xyaw ua ke co-adsorb ntawm qhov sib cuam tshuam, tsim cov yeeb yaj kiab sib xyaw nrog cov khoom siv zoo tshaj plaws thiab kev ruaj ntseg piv rau ob qho emulsifier siv ib leeg.
🏭 7. SPAN 80 Applications Across Industries
💊 Pharmaceuticals
- W/O emulsions rau tshuaj pleev xim xa tuaj
- Co-emulsifier hauv txhaj tshuaj emulsions (nrog Tween 80)
- Stabilizer nyob rau hauv cov tshuaj tiv thaiv adjuvant formulations
- Barrier cream puag rau kev ua haujlwm dermatology
✨ Cosmetics & Kev Kho Tus Kheej
- W/O sunscreens thiab UV{0}}cov tshuaj tiv thaiv
- Emollient nyob rau hauv txias cream thiab ntxuav balms
- Pigment dispersant nyob rau hauv cov xim pleev xim
- Co-emulsifier hauv cov plaub hau txias
🌾 Ua liaj ua teb
- Emulsifiable concentrate (EC) formulation adjuvant
- Spreader -sticker hauv foliar tshuaj tua kab
- Emulsifier hauv roj-raws li agrochemical formulations
- Wetting agent rau dej-repellent plant surfaces
🔩 Industrial & Oilfield
- W / O emulsifier hauv invert drilling av nkos tshuab
- Corrosion inhibitor cab kuj nyob rau hauv metalworking kua
- Emulsifier nyob rau hauv cov neeg ua hauj lwm tso tawm thiab pwm lubricants
- Antifoam tivthaiv hauv cov txheej txheem kev lag luam
🍞 Khoom noj khoom haus & Nutraceuticals
- E494 zaub mov emulsifier (tso daim ntawv thov)
- Encapsulant carrier rau roj- cov as-ham soluble
- Kev pab ua cov poov xab- tsa cov khoom bakery
Cov Khoom Siv Hluav Taws Xob thiab Cov Hluav Taws Xob Hluav Taws Xob Hluav Taws Xob Hluav Taws Xob Hluav Taws Xob Hluav Taws Xob Hluav Taws Xob Hluav Taws Xob thiab Hluav Taws Xob Hluav Taws Xob
- Spin finish emulsifier rau hluavtaws fibers
- Fiber lubricant hauv kev tsim cov xov paj
- Wetting agent hauv dyeing auxiliaries
📊 8. Cov Lus Qhia Tshwj Xeeb Zoo thiab Sourcing SPAN 80
SPAN 80 yog cov khoom lag luam emulsifier, tab sis qhov ua tau zoo tuaj yeem sib txawv ntawm cov neeg muag khoom - tshwj xeeb tshaj yog cov kua qaub, cov ntsiab lus dej, thiab xim. Cov hauv qab no yog cov qauv kev ua tau zoo los qhia meej:
| Parameter | Hom Specification | Vim Li Cas Nws Tseem Ceeb |
|---|---|---|
| Acid nqi | Tsawg dua lossis sib npaug li 8.0 mg KOH / g | High acid tus nqi=dawb fatty acid paug, ua rau pH drift |
| Saponification Tus nqi | 145-160 mg KOH/g | Ester ntsiab lus thiab purity qhia |
| Hydroxyl tus nqi | 193-210 mg KOH/g | Degree ntawm esterification / mono vs polyester piv |
| Cov ntsiab lus dej (KF) | Tsawg dua lossis sib npaug li 1.0% | Cov dej ntau dhau ua rau hydrolysis thiab clouding |
| Xim (Gardner) | Tsawg dua los yog sib npaug li 8 | Muaj feem xyuam rau cov tshuaj pleev ib ce thiab xim daj - cov qauv xim |
| Hnyav Hlau | Tsawg dua lossis sib npaug li 10 ppm | Yuav tsum tau rau pharma thiab zaub mov -hu rau daim ntawv thov |
✅ SPAN 80 Supplier Checklist
- ✅ Batch-CoA tshwj xeeb muaj rau txhua qhov khoom xa tuaj?
- ✅ Feedstock qhov chaw tshaj tawm ( zaub - muab oleic acid vs hluavtaws)?
- ✅ REACH sau npe nyob rau hauv qhov chaw rau EU xa khoom?
- ✅ Daim ntawv pov thawj Halal / Kosher muaj (rau daim ntawv thov zaub mov lossis tshuaj noj)?
- ✅ Ntim xaiv: nruas (180 kg), IBCs (1,000 kg), ISO tank?
- ✅ Cov qauv muaj rau kev sim ua ntej kev cog lus ntau?
❓ 9. Cov lus nug uas nquag nug
📦 Source SPAN 80 los ntawm Sinolook Chemical
Sinolook Chemical khoom siv SPAN 80 (Sorbitan Monooleate) hauv kev lag luam, tshuaj pleev ib ce, thiab pharma- qib zoo, nrog rau tag nrho cov ntaub ntawv suav nrog CoA, MSDS, REACH dossiers, thiab HS code tshaj tawm rau txhua qhov khoom xa tuaj. Yam tsawg kawg nkaus 200 kg; cov qauv muaj rau cov neeg siv khoom tsim nyog.
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www.sinolookchem.com🔗 Yam khoom: SPAN 80 Product Page · PEG Oleate · Cocamide DEA · Oleate Esters Qeb
