iindaba

I-resin matrix yee-thermoplastic composites ibandakanya iiplastiki zobunjineli eziqhelekileyo nezikhethekileyo, kwaye i-PPS imele iplastiki yobunjineli ekhethekileyo, eyaziwa ngokuba yi-"golide yeplastiki". Iingenelo zokusebenza ziquka ezi zinto zilandelayo: ukumelana nobushushu obuhle kakhulu, iipropati ezilungileyo zoomatshini, ukumelana nokugqwala, kunye nokuzitshisa ukuya kuthi ga kwinqanaba le-UL94 V-0. Ngenxa yokuba i-PPS ineenzuzo zokusebenza ezingentla, kwaye xa ithelekiswa nezinye iiplastiki zobunjineli be-thermoplastic ezisebenzayo kakhulu, ineempawu zokucutshungulwa lula kunye neendleko eziphantsi, ngoko ke ibe yi-resin matrix ebalaseleyo yokwenza izinto ezidityanisiweyo.

Izinto ezidityanisiweyo ze-PPS kunye ne-short glass fiber (SGF) zineengenelo zokuba namandla aphezulu, ukumelana nobushushu obuphezulu, ukuthintela ilangatye, ukucutshungulwa lula, iindleko eziphantsi, njl.
Izinto ezidityanisiweyo ze-PPS zefayibha yeglasi ende (LGF) zineengenelo zokuqina okuphezulu, ukugoba okuphantsi, ukumelana nokudinwa, ukubonakala kakuhle kwemveliso, njl. Zingasetyenziselwa ii-impellers, ii-pump casings, ii-joints, ii-valve, ii-chemical pump impellers kunye nee-casings, ii-cooling water impellers kunye neeShells, izixhobo zekhaya, njl.njl.

Ngoko ke yintoni umahluko othile kwiipropati ze-short glass fiber (SGF) kunye ne-long glass fiber (LGF) reinforced PPS composites?

Iipropati ezipheleleyo zee-composites ze-PPS/SGF (i-short glass fiber) kunye nee-composites ze-PPS/LGF (i-long glass fiber) zithelekisiwe. Isizathu sokuba inkqubo yokunyibilika kwe-melt isetyenziselwe ukulungiselela i-screw granulation kukuba ukumiliswa kwe-fiber bundle kuyenzeka kwi-impregnation mold, kwaye i-fiber ayonakalanga. Okokugqibela, ngokuthelekisa idatha yeempawu zoomatshini zezi zimbini, inokubonelela ngenkxaso yobugcisa kubasebenzi besayensi kunye nobuchwepheshe abakwicala lesicelo xa bekhetha izixhobo.

Uhlalutyo lwepropathi yoomatshini
Iifayibha zokuqinisa ezongezwe kwi-resin matrix zinokwenza ulusu oluxhasayo. Xa izinto ezidityanisiweyo ziphantsi kwamandla angaphandle, iifayibha zokuqinisa zinokuthwala ngempumelelo indima yemithwalo yangaphandle; kwangaxeshanye, zinokufunxa amandla ngokuqhekeka, ukuguqulwa, njl.njl., kwaye ziphucule iipropati zoomatshini ze-resin.

Xa umxholo wefayibha yeglasi usanda, iifayibha zeglasi ezingaphezulu kwizinto ezidityanisiweyo ziphantsi kwamandla angaphandle. Kwangaxeshanye, ngenxa yokwanda kwenani leefayibha zeglasi, i-resin matrix phakathi kweefayibha zeglasi iba ncinci, nto leyo enceda ngakumbi ekwakhiweni kweefreyimu eziqinisiweyo zefayibha yeglasi; ngoko ke, ukwanda komxholo wefayibha yeglasi kwenza izinto ezidityanisiweyo zikwazi ukudlulisa uxinzelelo olungakumbi ukusuka kwi-resin ukuya kwifayibha yeglasi phantsi komthwalo wangaphandle, nto leyo ephucula ngempumelelo iipropati zokuxinana nokugoba kwezinto ezidityanisiweyo.
Iimpawu zokutsalwa kunye nokugoba kwee-composites ze-PPS/LGF ziphezulu kunezo ze-PPS/SGF composites. Xa i-mass fraction ye-glass fiber iyi-30%, amandla okutsalwa kwee-composites ze-PPS/SGF kunye ne-PPS/LGF yi-110MPa kunye ne-122MPa, ngokwahlukeneyo; Amandla okugoba yi-175MPa kunye ne-208MPa, ngokwahlukeneyo; i-flexural elastic moduli yi-8GPa kunye ne-9GPa, ngokwahlukeneyo.
Amandla okutsalwa, amandla okugoba kunye ne-flexural elastic modulus yee-PPS/LGF composites zonyuswe nge-11.0%, 18.9% kunye ne-11.3%, ngokulandelelana, xa kuthelekiswa nee-PPS/SGF composites. Izinga lokugcina ubude be-glass fiber kwizinto ze-PPS/LGF composite liphezulu. Phantsi komxholo ofanayo we-glass fiber, izinto ze-composite zinokumelana nomthwalo okunamandla kunye neempawu ezingcono zoomatshini.