Polydimethylsiloxane PDMS - SEO Tshooj Lub Cev
⚗️ Txheej txheem cej luam: Polydimethylsiloxane (PDMS) yog dab tsi?
Polydimethylsiloxane (PDMS), kuj hu uaDimethiconelos yogDimethylpolysiloxane(CAS Nr.9006-65-9), yog linear organosilicon polymer nrog rov ua dua–[Si(CH₃)₂–O]ₙ–pob txha pob txha. Nws yog cov khoom siv silicone ntau tshaj plaws -raws li cov tshuaj tiv thaiv thiab defoam tus neeg sawv cev hauv kev lag luam, khoom plig rau nws qhov tshwj xeeb tsis tshua muaj qhov nro, zoo thermal stability, tshuaj inertness, thiab broad compatibility thoob plaws pH ntau yam ntawm acidic heev rau alkaline ib puag ncig.
PDMS ua raws li cov tshuaj tiv thaiv los ntawm kev nkag mus rau hauv cov npuas lamellae, kis tau sai heev thoob plaws cov kua- huab cua cuam tshuam vim nws lub zog qis heev, thiab ua rau cov npuas dej tsis ruaj kom txog thaum nws tawg. Txawm nyob rau theem qis heev (feem ntau10-500 ppm), nws muab kev ua haujlwm zoo thiab kav ntev ua npuas ncauj thoob plaws qhov kub thiab txias (-50℃rau +200℃) - ua kom nws ua tau zoo dua li cov khoom siv hydrocarbon-based defoamers.
💡 Sinolookyog ib lub tuam txhab kev lag luam hauv Tuam Tshoj cov tshuaj xa tawm uas muab tus nqi tshaj -qib PDMS rau cov neeg yuav khoom thoob ntiaj teb hla cov roj nplua nyeem, kev lag luam, kev ua zaub mov, kev saib xyuas tus kheej, thiab kev lag luam tshuaj. Peb muab ntau qib viscosity (50–1,000,000 cSt) nrog tus nqi sib tw thiab hloov pauv MOQ rau ob qho tib si sim thiab txiav txim ntau.
Polydimethylsiloxane (PDMS) CAS 9006-65-9 - Molecular Structure & Multi-Kev Lag Luam Kev Lag Luam
🔬 Technical Specifications
Sinolook muab PDMS hauv ntau qib viscosity. Cov txheej txheem tsis zoo rau cov qib kev lag luam feem ntau tau teev tseg hauv qab no. Kev cai viscosities thiab formulations (emulsion, compound) muaj nyob rau ntawm kev thov.
| Parameter | Txheem tus nqi | Qhov tseem ceeb |
|---|---|---|
| Qhov tshwm sim | Colorless rau daj ntseg daj pob tshab kua | Tsis pom impurities lossis turbidity |
| Kinematic Viscosity @ 25 degree | 50 - 1,000,000 cSt (ntau qib) | Txiav txim siab defoaming zog, yooj yim ntawm dispersion & daim ntawv thov |
| Refractive Index (25 degree) | 1.400 – 1.405 | Paub meej polymer purity thiab molecular qauv |
| Ceev (25 degree) | 0.960 - 0.975 g / cm³ | Raws li cov qib viscosity |
| Flash Point (COC) | Ntau tshaj lossis sib npaug li 300 degree | Kev nyab xeeb hluav taws zoo heev rau siab -kub siv kev lag luam |
| Kev khiav hauj lwm qhov kub thiab txias | -50℃rau +200℃(General); mus txog +300℃(qib siab kub) | Broadest thermal qhov rais ntawm txhua hom antifoam |
| Nto Ntog (25 degree) | ~ 21 mN / m | Tsawg heev - ua rau muaj kev sib kis sai sai rau cov yeeb yaj kiab ua npuas ncauj |
| Txee lub neej | 24 lub hlis (sau, txias & qhuav cia) | ruaj khov ntev -kev ua tau zoo |
✅ Muaj qib: 50 / 100 / 200 / 350 / 500 / 1,000 / 5,000 / 12,500 / 60,000 / 300,000 / 1,000,000 cSt. CoA, SDS/MSDS, thiab zaub mov- cov ntaub ntawv pov thawj qib muaj nyob rau thaum thov.
💡 PDMS Viscosity Qib Xaiv Phau Ntawv Qhia
PDMS muaj nyob rau hauv ntau yam viscosity. Xaiv cov qib zoo yog qhov tseem ceeb rau ob qho tib si defoaming efficiency thiab yooj yim ntawm daim ntawv thov.
| Qib viscosity | Tej kev siv | Cov yam ntxwv tseem ceeb |
|---|---|---|
| 50-200 hli | Kev tu tus kheej, tshuaj pleev ib ce, kho plaub hau, tshuaj | Tsawg viscosity, yooj yim kis tau, silky ntawm daim tawv nqaij |
| 350-1,000 dr hab | Lubricant antifoam, zaub mov ua (E900), textile | Balanced defoaming & tuav; qib feem ntau |
| 5,000 – 12,500 TZS | Industrial lubricants, hydraulic systems, roj & roj | High-efficiency defoaming nyob rau hauv non-aqueous systems |
| 60,000 – 1,000,000 cz | Cov kua dej tsis zoo, cov khoom sib khi, cov khoom tso tawm, siab - daim ntawv thov kub | Semi-cov ntaub ntawv zoo, siab tshaj plaws zaj duab xis persistence |
✅ Thaum tsis ntseeg, lub350-1,000 CST ntau yamyog ntau yam pib taw tes rau lubricant thiab industrial antifoam daim ntaub ntawv. Peb pab pawg kws tshaj lij tuaj yeem pom zoo rau qib viscosity zoo raws li koj qhov kev tshwj xeeb thiab kev sib tw ua npuas ncauj.
🏭 Key Application Fields
🛢️ 1. Lubricant & Industrial Oil Antifoam Additive
Ua npuas ncauj nyob rau hauv lubricating roj - tshwm sim los ntawm mechanical agitation, air entrainment, los yog surfactant contamination - ua rau txo cov zaj duab xis thickness, nce hnav, cavitation puas, thiab oxidative degradation. PDMS yogstandard antifoam additive nyob rau hauv engine roj, iav roj, hydraulic kua, compressor roj, thiab turbine roj, feem ntau yog siv los kho tus nqi ntawm10-100 ppm. Its extremely low surface tension (∼21 mN/m) allows it to rapidly spread at the oil-air interface and collapse foam bubbles before they cause damage. PDMS yog sib xws nrog txhua hom roj nplua nyeem cov pob khoom ntxiv - los tiv thaiv - cov neeg ua haujlwm hnav, tshuaj tua kab mob antioxidant, tshuaj ntxuav tes, thiab cov tshuaj tua kab mob - yam tsis muaj kev cuam tshuam tsis zoo. Tuam Tshoj cov chaw muag khoom muab PDMS qib optimized rau ob qho tib si ntxhia roj thiab hluavtaws (PAO, ester) hauv paus roj tshuab.
🏗️ 2. Industrial & Chemical Process Defoamer
Ua npuas ncauj tswj yog ib qho tseem ceeb txheej txheem parameter nyob rau hauvfermentation, kev kho dej khib nyiab, xim thiab coatings, adhesives, textile dyeing, pulp thiab ntawv, thiab petrochemical refining. PDMS-raws li defoamers yog qhov kev lag luam thawj qhov kev xaiv rau cov ntawv thov no vim lawv cov txiaj ntsig thoob plaws pH ntau yam (2–13), ntev- kev ua haujlwm ntev, thiab thermal stability txog li 200℃. Hauv kev tsim cov roj thiab roj, PDMS yog siv rau hauv cov hlab ntsha sib cais, cov khoom siv roj, thiab amine sweetening units los tswj cov txheej txheem ua npuas ncauj thiab tiv thaiv cov khoom siv hauv qab. Emulsified PDMS formulations (PDMS nyob rau hauv dej los yog hnyav) yog muaj rau cov dej-raws li systems uas ncaj qha ntxiv ntawm zoo zoo silicone roj tsis siv tau.
🍽️ 3. Food Processing Antifoam (Food Grade, E900)
Khoom noj khoom haus- qib PDMS (tso npe raws liE900 hauv Tebchaws Europe; tswj nyob rau hauv 21 CFR §173.340 hauv Tebchaws Meskas) yog dav siv los tiv thaiv npuas tsim nyob rau hauvroj ua noj, dej haus, khoom noj siv mis, fermentation (npias, cawv), kua ntses thiab condiments, thiab ci. Nws tau pom zoo los ntawm FDA, EFSA, thiab JECFA rau daim ntawv thov kev sib cuag zaub mov ncaj qha nrog ADI ntawm 0–1.5 mg / kg lub cev hnyav. Cov qib siv ib txwm yog 1-10 ppm hauv cov khoom noj. Sinolook muab NSF/zaub mov-qib ntawv pov thawj PDMS rau cov neeg yuav khoom hauv kev lag luam zaub mov thiab dej haus uas xav tau cov ntaub ntawv tswj hwm tag nrho.
💄 4. Kev Kho Tus Kheej, Tshuaj pleev ib ce & Tshuaj
Tsawg-viscosity PDMS (50–350 cSt) yog cov khoom tseem ceeb hauvtshuaj zawv plaub hau, tshuaj kho mob, tshuaj pleev ib ce, tshuaj pleev thaiv hnub, thiab cov khoom siv kho mob txheej. Nws biocompatibility, physiological inertness, thiab tsis yog -comedogenic zog ua rau nws ib tug zoo tagnrho daim tawv nqaij- txias thiab anti-foaming tus neeg sawv cev nyob rau hauv cov tshuaj pleev ib ce formulations. Hauv kev lag luam tshuaj, nws yog siv los ua cov tshuaj tua kab mob hauv plab hauv cov tshuaj tiv thaiv -bloating tshuaj (simethicone). Hauv kev lag luam automotive thiab electronics, PDMS ua haujlwm ua ib qhopwm tso tus neeg sawv cev, sealant, damping kua, thiab dielectric txheej- ib qho ntawm cov tshuaj muaj ntau yam kev lag luam muaj.
📦 Cov lus qhia txog kev khaws cia & tuav
🏪 Kev Cia Siab
- Txias, qhuav, zoo -ventilated warehouse; deb ntawm lub hnub ncaj qha & tshav kub qhov chaw
- Pom zoo cia kub:5℃- 30 degree; cov khoom yog ruaj khov mus txog 200℃tab sis ntev ntev -kub cia txo viscosity
- Siv kaw HDPE nruas lossis hlau ntim; zawm lub kaus mom tom qab txhua qhov siv los tiv thaiv kev ya raws thiab kev kis kab mob
- Khaws kom deb ntawm cov oxidizing muaj zog thiab qhib nplaim taws (flash point Ntau dua los yog sib npaug rau 300℃- tsis tshua muaj hluav taws kub)
- Max stacking qhov siab:3 txheejlos tiv thaiv lub nruas deformation
⚠️ Kev Tiv Thaiv Kev Tiv Thaiv
- PDMS muaj toxicity tsawg - hnavhnab looj tes & tsom iav kev nyab xeebraws li tus qauv kev coj ua
- Tsis txhob kov qhov muag; cov khoom tsis yog - khaus tab sis yaug nrog dej yog tias muaj kev sib cuag
- Rau cov zaub mov- cov ntawv thov qib: siv cov khoom siv tshwj xeeb, huv si los tiv thaiv kev hla -kev sib kis los ntawm kev lag luam- qib PDMS
- Txau: sau nrog cov khoom nqus dej (xuab zeb, sawdust); cov khoom tsis muaj kev phom sij rau dej tab sis pov tseg raws li kev cai hauv zos
- PDMS tsis yog hluav taws kub nyhiab nyob rau hauv ib txwm tuav tej yam kev mob - txheem kev tiv thaiv hluav taws siv
🌐 Yuav Ua Li Cas Xaiv Lub Tuam Txhab Txhim Kho Tuam Tshoj PDMS Chaw Muag Khoom
PDMS zoo yog txiav txim siab los ntawm polymer saw uniformity, viscosity raug, thiab purity theem. Ntsuas cov neeg xa khoom thoob plaws tsib qhov loj me no kom ntseeg tau tias koj tau txais cov khoom sib xws, cov lus qhia tshwj xeeb- cov khoom ua raws:
Lub nplhaib meej- qhib polymerization ntawm D4/D5 cyclics nrog nruj molecular hnyav tis tswj yog qhov tseem ceeb rau qhov tseeb, zoo ib yam viscosity nyob rau hauv ntau lawm batch.
ISO 9001 rau kev tswj kom zoo; ISO 22000 / FDA / EFSA cov ntaub ntawv ua raws rau zaub mov- qib qib; REACH sau npe rau EU export.
Tus neeg muag khoom muab tag nrho cov viscosity ntau yam (50 cSt rau 1,000,000 cSt) ntxiv rau emulsion thiab compound formulations muab rau koj yooj yim mus rau tag nrho koj PDMS xav tau los ntawm ib tug khub.
Rau cov ntawv thov zaub mov, tshuaj, thiab kev saib xyuas tus kheej, paub meej tias muaj NSF, FDA 21 CFR, EU E900 cov ntawv ua raws cai, thiab cov ntaub ntawv qhia txog cov khoom xyaw tag nrho.
Tuam Tshoj yog lub ntiaj teb loj tshaj plaws PDMS tsim khoom. Tsim cov tuam txhab suav nrog ruaj khov D4 / D5 monomer mov chains muab cov nqi sib tw tshaj plaws thiab txhim khu kev qha khoom thoob ntiaj teb.
PDMS feem ntau yog muab rau hauv 200 L nruas lossis IBC totes (1,000 L). Siab - qib viscosity (Ntau dua lossis sib npaug li 60,000 cSt) yuav xav tau cov khoom siv cua sov thiab hloov khoom siv - lees paub koj lub peev xwm tuav ua ntej xaj. Rau cov ntawv thov roj nplaum nplaum, ib txwm txhaj tshuaj PDMS ntawm tus nqi kho mob qis tshaj plaws (pib ntawm 10 ppm thiab nce raws li qhov xav tau) - dhau- noj yuav ua rau huab cua nkag hauv qee lub hauv paus roj. Thov ib qho qauv dawb rau lub rooj zaum- sab saum toj kho- tus nqi optimization ua ntej cog lus rau ntau qhov ntau.
❓ Cov lus nug nquag nug (FAQ)
Q1: Tus lej CAS rau Polydimethylsiloxane (PDMS) yog dab tsi?
Tus lej CAS tseem ceeb yog9006-65-9rau linear polydimethylsiloxane polymer. Cov lej CAS ntsig txog suav nrog 63148-62-9 (dimethicone) thiab 107-46-0 (hexamethyldisiloxane, ib qho luv luv-chain variant). Thov qhia qhov xav tau qib viscosity thiab daim ntawv thov (lubricant, zaub mov, kev saib xyuas tus kheej, kev lag luam) thaum thov cov lus hais.
Q2: Dab tsi yog qhov txawv ntawm PDMS antifoam thiab hydrocarbon-raws li defoamers?
PDMS muaj peb qhov zoo tshaj plaws ntawm hydrocarbon defoamers: (1)txo qis tus nqi kho- siv tau ntawm 10–100 ppm vs . 500–2,000 ppm rau hydrocarbons; (2)wider kub stability- siv tau los ntawm -50℃rau +200℃vs. nqaim ntau rau hydrocarbons; thiab (3)dav chemical compatibility- siv tau thoob plaws pH 2–13 thiab sib haum nrog feem ntau cov tshuaj. Kev lag luam tawm - tawm yog tus nqi siab dua, tab sis qhov no feem ntau yog offset los ntawm tus nqi kho mob qis dua yuav tsum tau ua.
Q3: Puas yog zaub mov-qib PDMS (E900) nyab xeeb? Cov kev cai lij choj pom zoo yog dab tsi?
Yog lawm. Khoom noj khoom haus- qib PDMS (E900) tau pom zoo los ntawmFDA (21 CFR §173.340), EFSA (E900), thiab JECFA (ADI 0–1.5 mg/kg bw)siv los ua tus neeg sawv cev antifoaming hauv kev ua zaub mov. Nws tsis yog absorbed los ntawm txoj hnyuv thiab yog excreted unchanged. Tsis muaj carcinogenic, teratogenic, lossis genotoxic cuam tshuam tau raug txheeb xyuas hauv cov kev tshawb fawb tswj. Sinolook tuaj yeem muab zaub mov-qib PDMS nrog cov ntaub ntawv tswj hwm kev tswj hwm suav nrog CoA, SDS, thiab daim ntawv pov thawj ntawm zaub mov- qib kev ua raws.
Q4: Qhov twg PDMS viscosity qib kuv yuav tsum tau siv los ua cov roj nplua nyeem ntxiv?
Rau lubricant antifoam daim ntaub ntawv,350-1,000 dr habCov qib feem ntau yog siv hauv cov roj cav, cov roj iav, thiab cov kua dej hydraulic. Cov qib viscosity siab dua (5,000–12,500 cSt) muab kev ua npuas ncauj ntau dua nyob rau hauv cov khoom siv hnyav hnyav thiab cov roj-thiab- roj av. Rau hluavtaws (PAO / ester) roj lubricants, qis viscosity qib (50-200 cSt) yog qhov zoo dua rau kev sib cais zoo dua. Peb pab pawg kws tshaj lij tuaj yeem muab kev kho mob - cov lus pom zoo rau koj cov qauv tshwj xeeb.
Q5: Cov ntaub ntawv dab tsi muaj rau kev ntshuam thiab ua pov thawj zoo?
Sinolook muab cov ntaub ntawv ua tiav pob:Certificate of Analysis (CoA), Safety Data Sheet (SDS/MSDS), coj mus muag invoice, packing list, Bill of Lading, thiab Certificate of Origin. Rau zaub mov- qib xaj: FDA / E900 cov ntawv ua raws thiab NSF cov ntaub ntawv. Thib peb-cov ntaub ntawv tshuaj xyuas tog neeg (SGS, Intertek, BV) thiab REACH cov ntaub ntawv sau npe muaj nyob rau thaum thov.
📩 Hu rau Sinolook - Koj Trusted Partner for Polydimethylsiloxane (PDMS)
Sinolook yog ib lub tuam txhab kev lag luam chemical export txuas thoob ntiaj teb cov neeg yuav khoom nrog Tuam Tshoj tus thawj coj PDMS manufacturers. Peb muab Polydimethylsiloxane (CAS 9006-65-9) hla tag nrho cov viscosity ntau yam - los ntawm 50 cSt mus rau 1,000,000 cSt - hauv kev lag luam, qib zaub mov, thiab qib saib xyuas tus kheej, ua tau raws li cov qauv zoo thoob ntiaj teb. Peb muab kev txhawb nqa ua tiav ib-nres: kev sib tw qib, kev sib tham, kev tswj xyuas cov ntaub ntawv, kev lis kev cai clearance, thiab thoob ntiaj teb logistics.
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Cim npe nrov: Polydimethylsiloxane (pdms), Tuam Tshoj polydimethylsiloxane (pdms) manufacturers, lwm tus neeg
