PPS (prolyphenylene sulfide): Fahmitaanka u qalmida, codsiyada, iyo beddelka hufan

2025,03,26

Pulyphenylel sulfide (PPS) waa injineer injineer aad u sareeya oo si balaadhan loogu isticmaalo warshadaha u baahan xasilloonida kuleylka, iska caabinta kiimikada, ololka dib-u-dhaca, iyo farsamada xoog. Si kastaba ha noqotee, si ka duwan pak (polythertonenetone) ama pei (pei (peiytherimide), oo lagu gaari karo daahfurnaanta qayb ahaan, PPS waa mid asal ahaan u eg qaab dhismeedka semi-crystalline.

Sababaha loo yaqaan 'PPS Furfurinta'

Qaab-dhismeedka Crystall

La mid ah pai (polyamide-imode) iyo polymimide), foomamka PPS ayaa amar ku bixisay gobollada crystallone-ka inta lagu jiro qaboojinta. Gobolladaas waxay ku kala firdhiyaan iftiin, yareynta daah furnaanta.

Ka shaqeynta iyo waxyaabaha lagu daro

Isu-soo-qaadida sida galabka dhalada (caan ku ah PPS, PPT, iyo PPU [ppu "ee uretheret])) Xitaa PPS aan qabinba waxay u muuqataa jaalle khafiif ah, oo si ka duwan PVDF (polyvinyline foloride), kaas oo xajinaya cadeynta inkasta oo qudha.

Heerkulka heerkulka sare

PPS waxay u baahan tahay 280-320 ° C ee heerkulka, u dhigma PPSU (polyphenylsul). Foomamka qaboojinta ee degdegga ah microcrystalstals, oo ka sii daraysa furfurnaanta - caqabadda caqabadda ka yar ku dhawaaqday amorphous pei.

Fursadaha PPS ee hufan

In kasta oo PPS Standard ay tahay mid opaque ah, noocyo wax laga beddelay (tusaale, filimada khafiifka ah) ayaa laga yaabaa inay u dhowaadaan khayaanada. Si kastaba ha noqotee, beddelka sida ppsu orcoc (cyclic otmamada cotrolymyer) daahfurnaanta iyo waxqabadka.

Codsiyada caadiga ah ee PPS

PPSEXCCSELS ee heerkulka sare (> 200 ° C) iyo jawiga wasakhaysan, oo ka mid ah pai iyo PPU ee khasnaynta qiimaha:

Gawaarida: Qalabka dabka (vs. dareemayaasha ku saleysan pei).

Elektroonikada: saldhigyada (dhameystirka pifilms ee wareegyada).

Warshadaha: Valves (halka ay gacanta ku hayaan PVDF.

Beddelka Beddelka ah

Tilmaanta daah furnaanta caabbinta kuleylka:

Polycarbonate (PC)

Isu-caabbinta kuleylka hoose (120-130 ° C) ka badan pik ama pi.

Polysalfone (psu / ppsu)

PPSU waxay bixisaa adkeyn ka badan PES, dulqaadashada 180 ° C.

Darc

- Waxay isku daraan caddeynta caabbinta kiimikada, oo si ka duwan culayska walaaca fekerka.

Gabagabo

PPS wali waa opaque laakiin waxay ku talinaysaa qiimaha-xasaasiga ah, doorarka heerkulka sare. Baahiyaha hufan, tixgeli PPSU, Coc, ama pei, halka Peek iyo PI ay u adeegaan baahiyaha kuleylka aadka u ah. Xulashada shey waa inay miisaamaan hufnaanta ka dhanka ah arrimaha sida caabbinta kiimikada (tusaale, PVDF Vsppu) iyo kharashaadka ka shaqeynta.