Lub luag hauj lwm dab tsi ua Cov Surfactants hauv PTFE Dispersions Ua Si Thaum Impregnation thiab Sintering?

Raws li cov chaw tsim khoom lag luam ntawm PTFE coated fiberglass fabrics, Jiangsu Aokai Cov Khoom Tshiab ntxiv cov khoom tsim nyog thaum lub sij hawm PTFE dispersion impregnation txheej txheem rau cov khoom tshwj xeeb. Surfactants yog ib qho tseem ceeb tshaj plaws ntawm PTFE dispersions, nrog rau kev khiav hauj lwm los ntawm tag nrho cov txheej txheem ntau lawm.

Lub luag haujlwm thaum lub sijhawm Impregnation txheej txheem

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Emulsion Stabilization PTFE hais yog inherently hydrophobic thiab zoo li agglomerate hauv dej. Surfactants encapsulate cov hais los tsim steric hindrance, tso cai rau lawv nyob ruaj khov thiab uniformly tshem tawm hauv dej rau lub sij hawm ntev thiab tiv thaiv sedimentation.

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Surface Tension Adjustment Surfactants ho txo ​​qhov nro ntawm qhov tawg kom zoo hauv qab lub zog saum npoo ntawm impregnated substrate (xws li iav fiber). Qhov no tso cai rau cov dispersion kom kis tau sai heev thiab nkag mus tob, kom ntseeg tau tias cov khoom adhesion ntawm PTFE hais mus rau lub substrate.

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Hom Hom Lub ntsiab surfactants siv industrially yog non-ionic surfactants, xws li Triton X  (ib tug ntev-chain alkyl ether compound). Rau kev txhim kho kev ua haujlwm ntub dej, fluorosurfactants kuj tau ua haujlwm, uas tuaj yeem txo qhov emulsion nto nro mus rau theem ze ntawm cov khoom siv PTFE ntshiab.

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Lub luag haujlwm thaum lub sijhawm Sintering

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Thermal Decomposition thiab Volatilization Txawm hais tias surfactants yog qhov tseem ceeb thaum lub sij hawm impregnation, lawv dhau los ua 'impurities' hauv cov khoom kawg. Lawv lub luag hauj lwm nyob rau hauv lub sintering theem yog decompose thermally thiab volatilize kiag li tsis muaj nyob rau hauv lub txheej.

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Sintering 'Window Phase' Cov txheej txheem no feem ntau tshwm sim thaum pib cua sov theem ntawm sintering, ntawm kwv yees li 240 ° C , qhov twg cov organic Cheebtsam decompose thiab evaporate. Yog li ntawd, sintering feem ntau yog siv cov txheej txheem kub nce siab  kom muaj sijhawm txaus rau cov pa roj decomposed kom dim, tsis txhob tsim cov npuas lossis pinholes.

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Kev tshem tawm tag nrho ntawm surfactants yog qhov tseem ceeb. Txhua qhov residual surfactant yuav cuam tshuam cov txheej txheem purity, txo cov khoom tsis-stick thiab kev ua haujlwm dielectric. Thaum lub sij hawm kawg high-temperature sintering theem, surfactants 'ua tiav lawv lub hom phiaj thiab tawm,' ua txoj kev rau tsim ib tug ntshiab thiab ntom PTFE txheej.

Cov ntaub ntawv saum toj no yog muab los ntawm Jiangsu Aokai New Material Technology Co., Ltd.

Rau cov ntsiab lus tob ntawm cov lus qhia tshwj xeeb, daim ntawv thov scenarios thiab cov kev daws teeb meem rau peb cov khoom lag luam tag nrho - suav nrog PTFE coated fiberglass npuag, PTFE high-temperature daim kab xev, PTFE qhib mesh conveyor siv, seamless bonding tshuab siv, ib sab PTFE coated ntaub, high-temperature resistant conveyor siv, tshav kub-resistant fiberglass ntaub:

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