Isbeddellada ku yimaadda qaab-dhismeedka Crystalline ee PTFE Inta lagu jiro Sintering ee PTFE Dhar heerkul sare ah

Jiangsu Aokai Qalabka Cusub, soo saaraha xirfadlaha ah ee PTFE maro heerkul sare ah, ayaa sharraxaysa horumarinta qaab dhismeedka crystalline PTFE inta lagu guda jiro habka sintering ee PTFE maro heerkul sare ah.

I. Burburinta Qaab-dhismeedka Crystalline ee Asalka ah

1. PTFE crystalline morphology ka hor sintering

Kahor inta aan sintering, PTFE u jira sida qayb emulsion kala firdhiyey oo ku xidhan marada fiberglass. Qayb kastaa waxa ay ka kooban tahay silsilado laallaaban oo crystalline ah oo leh lamellae yaryar oo si habsami leh u habaysan.

2. Isbeddelka qaabdhismeedka inta lagu jiro kululaynta sintering

Marka heerkulku kor u kaco barta dhalaalka (~ 327 ° C), dhammaan kiristaalo si buuxda u dhalaali. Silsilada molecular ee laablaaban waa ay kala baxaan oo kala baxaan, una beddelaan dhalaal aan muuqaal lahayn. Xudduudaha walxaha asalka ah waxay baaba'aan marka ay qaybuhu isku darsamaan weji dhalaalid joogto ah, oo si buuxda u burburiya qaab-dhismeedka crystalline-ka hore.

II. Dib-u-crystallization inta lagu jiro qaboojinta

1. Samaynta qaababka spherulitic

Markay qaboojiso gobolka dhalaalaysa, PTFE si degdeg ah ayay dib ugu samaysaa si ay u samaysato spherulites ka kooban silsilado laallaal ah oo shucaac ah oo ka soo baxaysa goobaha nukliyeerka ee dhexe. Spherulites-yada is dhex gala waxay dhisaan matrix crystalline joogto ah, iyagoo beddelaya qaab-dhismeedka walxaha asalka ah ee la soo buuxiyay.

2. Kala duwanaanshaha crystallinity final

PTFE waxa ay leedahay silsilado unugyo adag oo aad u caadi ah, oo keenaya heerar aad u degdeg badan oo crystallization xitaa qaboojin degdeg ah. crystallinity final guud ahaan u dhaxaysaa 50% ilaa 70%, wax yar ka hooseeya qayb ka emulsion asalka ah.

III. Horumarka Qiyaasta Crystalline iyo Foomamka Crystal

1. Haysashada wajiga crystal xasiloon

Kadib marka la qaboojiyo heerkulka qolka, PTFE waxa ay ilaalisaa nidaamka crystal-ka ee laba geesoodka ah (heerkulka qolka-hexagonal wejiga), oo la mid ah qaabkisa crystal-ka hore Dhammaan isbeddellada qaabdhismeedku waxay ku dhacaan cabbirka crystal, dhammaystirnaanta iyo qaab-dhismeedka halkii ay ka ahaan lahaayeen wejiga ugu dambeeya ee crystal.

2. Saamaynta heerka qaboojinta ee kaamilnimada crystal

Qaboojinta qunyar socodka ah waxay soo saartaa crystallinity sare, sppherulites waaweyn iyo dhumuc weyn, si fiican loo qeexay lamellae, taasoo keentay badeecooyin leh qallafsanaan sare iyo cufnaan.

Demminta degdega ah waxay keentaa crystallinity yara hooseeya, fican, spherulites aan fiicnayn, iyo dabacsanaanta iyo hufnaanta nus-daahfurka ah ee alaabta la dhammeeyey. Qaboojinta qunyar socodka ah waa heerka PTFE maro heerkul sare ah si loo buuxiyo shuruudaha xoogga farsamada.

IV. Saamaynta Crystallization Interface ee Fiberglass iyo Muhiimadda Guud

1. ifafaale transcrystalization

Marka dhalaalidda PTFE ay ku qaboojiso dusha sare ee fiberglass, goobaha nukliyeerka cufan ee dusha sare ee fiber waxay keenaan transcrystallization: lakabka crystal columnar wuxuu u koraa si siman xagga dhidibka fiber-ka, oo ka duwan qaab-dhismeedka spherulite ee ku dhex jira daahan bulk ah.

2. Qaab dhismeedka gradient laga bilaabo interface fiber in daahan bulk

Marka la eego saameynta fiberglass-ka, qaab-dhismeedka crystalline ee PTFE wuxuu sameeyaa kala-guurka tartiib tartiib ah: lakabka transcrystalline ee ku dheggan fiilooyinka si tartiib tartiib ah ugu wareegaya qaab-dhismeedka spherulitic ee matrix daahan gudaha.

3. Saamaynta go'aaminta isbeddelka qaabdhismeedka ee waxqabadka dharka PTFE

Sintering waxay u beddeshaa kiristaalo PTFE silsilad laalaaban: waxay marayaan dhalaalid iyo burbur qaabdhismeed, ka dibna recrystallized si joogto ah, sppherulites cufan (oo leh lakabyo transcrystalline dhex gal ah). Tani waxay u beddeshaa qaybo budo ah oo dabacsan filim joogto ah, taas oo ah shardiga muhiimka ah ee daahan si loo bixiyo waxqabad dhamaystiran oo ay ku jiraan iska caabbinta kulaylka, khilaafka hooseeya, hantida aan dhegta lahayn iyo caabbinta kiimikada.

Nuxurka farsamada ee kor ku xusan waxaa bixiya Jiangsu Aokai New Materials Technology Co., Ltd.

Haddii aad rabto inaad hesho faahfaahin faahfaahsan, xaaladaha codsiga iyo xalalka loo habeeyey ee loogu talagalay faylalka alaabtayada oo dhan oo ay ku jiraan PTFE maro heerkul sare leh, PTFE cajalad xabagta heerkulka sare, PTFE suunka mesh heerkulka sare, suunka kulaylka kuleylka aan kala go 'lahayn, dhar PTFE hal-dhinac ah, heerkul sare u adkaysta, nala soo xiriir suunka fiberglasiyaha

· Khadka Adeegga: Mr. Guo +86 18944819998

· Khadka Adeegga: Mr. Liu +86 13705266308

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