Acrylonitrile butadiene styrene (ABS) vs Polymer PTFE / FEP Machining

Acrylonitrile butadiene styrene (ABS) (cov tshuaj formula (C8H8)x·(C4H6)y·(C3H3N)z) yog ib hom thermoplastic polymer.Nws cov iav hloov pauv kub yog kwv yees li 105 ° C (221 ° F).ABS yog amorphous thiab yog li ntawd tsis muaj qhov tseeb melting point.Polytetrafluoroethylene (PTFE) yog ib qho hluavtaws fluoropolymer ntawm tetrafluoroethylene uas muaj ntau daim ntawv thov.Lub npe nrov tshaj plaws ntawm PTFE-raws li cov qauv yog polymer los ntawm Chemours.Chemours yog ib qho kev sib tw ntawm DuPont Co., uas nrhiav pom qhov sib xyaw hauv xyoo 1938.

Cov khoom tseem ceeb tshaj plaws ntawm ABS yog kev cuam tshuam thiab toughness.Ntau yam kev hloov kho tuaj yeem tsim los txhim kho kev cuam tshuam, toughness, thiab kub tsis kam.Qhov cuam tshuam kuj tuaj yeem ua kom nthuav dav los ntawm kev nce qhov sib npaug ntawm polybutadiene hauv kev sib raug zoo rau styrene thiab kuj acrylonitrile, txawm tias qhov no ua rau muaj kev hloov pauv hauv lwm yam khoom.Impact resistance tsis poob sai sai ntawm qhov kub thiab txias.Stability nyob rau hauv load yog zoo heev nrog txwv loads.Yog li, los ntawm kev hloov cov proportions ntawm nws cov Cheebtsam, ABS tuaj yeem npaj tau ntau qib.Ob pawg loj tuaj yeem yog ABS rau extrusion thiab ABS rau kev txhaj tshuaj molding, ces siab thiab nruab nrab cuam tshuam.Feem ntau ABS yuav muaj txiaj ntsig zoo nyob rau hauv qhov kub ntawm −20 txog 80 ° C (−4 txog 176 ° F).

PTFE yog ib qho thermoplastic polymer, uas yog cov khoom dawb ntawm chav tsev kub, nrog qhov ceev ntawm li 2200 kg / m3.Raws li DuPont, nws cov ntsiab lus melting yog 600 K (327 ° C; 620 ° F).Nws tuav lub zog siab, toughness thiab nws tus kheej lubrication ntawm qhov kub qis mus rau 5 K (−268.15 ° C; −450.67 ° F), thiab ua tau zoo ntawm qhov kub siab tshaj 194 K (-79 ° C; -110 ° F).PTFE tau txais nws cov khoom los ntawm kev sib sau ua ke ntawm carbon-fluorine bonds, zoo li tag nrho cov fluorocarbons.Tsuas yog cov tshuaj uas paub tias cuam tshuam rau cov carbon-fluorine bonds yog cov hlau reactive zoo li cov hlau alkali, thiab nyob rau ntawm qhov kub siab dua kuj xws li hlau xws li txhuas thiab magnesium, thiab cov tshuaj fluorinating xws li xenon difluoride thiab cobalt (III) fluoride.

Kev sib piv ntawm Acrylonitrile butadiene styrene (ABS) thiab Polymer PTFE / FEP Property Values

Cov ntaub ntawv siv

Acrylonitrile butadiene styrene (ABS)ipes thiab Fittings; Valve lub cev, khoom siv tuav.

Polymer PTFE / FEP: Cabling kev daws teeb meem; Tsis yog lubricated bearings; O-rings; Foob; Capacitors; Semiconductor manufacturing; Kub kub hluav taws xob qhov chaw; Gaskets; Valve Cheebtsam.

Khoom Khoom

Acrylonitrile butadiene styrene (ABS): Zoo heev cuam tshuam lub zog; zoo fabricating thiab machining zog; zoo aesthetic zog; Zoo tshuaj tsis kam; Tshuab nrog yooj yim; Tsawg tshav kub conductivity; corrosion thiab puas resistant; Tsawg co-efficient ntawm kev sib txhuam.

Polymer PTFE / FEP: Zoo heev dielectric zog; Inertness rau feem ntau chemicals; siab kub thiab tshuaj tiv thaiv; Tsis tshua muaj coefficient ntawm kev sib txhuam; Zoo heev hluav taws xob tsis kam; xoom noo noo nqus; Relatively insensitive rau lub hwj chim zaus; Machinability.