Daim ntawv thov piv txwv ntawm PP nplooj ntawv hauv kev lag luam tsheb?

Polypropylene (PP), as one of the five general plastics, has become the core material of automobile lightweight because of its low density, good heat resistance, strong chemical stability and excellent processing performance. Nyob rau hauv xyoo tas los no, nrog rau kev loj hlob sai ntawm lub zog tshiab tsheb thiab nce nruj ntawm kev tiv thaiv ib puag ncig, polypropylene sheet hlau tau ua tiav kev ua tau zoo los ntawm kev hloov kho thev naus laus zis, thiab tau siv dav hauv tsheb sab hauv, sab nrauv, cov qauv thiab kev ua haujlwm. Raws li cov ntawv thov raug, daim ntawv no txheeb xyuas cov kev coj ua tshiab thiab kev txhim kho thev naus laus zis ntawm polypropylene sheet hlau hauv kev lag luam tsheb.

Automotive lightweighting yog ib txoj hauv kev tseem ceeb los txhim kho roj efficiency thiab txo qis emissions. Cov kev tshawb fawb tau pom tias 10% txo qis hauv qhov hnyav tuaj yeem txo cov roj noj los ntawm 6 feem pua ​​​​rau 8 feem pua ​​​​thiab emissions los ntawm 4% feem pua ​​​​rau roj- cov tsheb zoo. Rau ib lub tsheb fais fab, rau txhua txhua 10kg ntawm qhov hnyav poob, qhov ntau ntxiv los ntawm 2.5km. Cov nplooj ntawv polypropylene muaj qhov ntom ntawm 0.89-0.91 g / cm3, uas yog qhov hnyav hnyav piv rau cov khoom siv hlau tsoos. Tsis tas li ntawd, nrog kev hloov kho, lawv sib npaug ntawm cov neeg kho tshuab kev ua haujlwm nrog kev ua haujlwm, ua rau lawv cov khoom siv hnyav ntawm kev xaiv rau tsheb.
Tam sim no, tus nqi hloov pauv polypropylene rau ib lub tsheb tau dhau los ua qhov tseem ceeb ntawm kev tsim tsheb muaj peev xwm. Qhov nruab nrab siv cov neeg caij tsheb hauv lub teb chaws Yelemees yog 340-410 kg, nrog rau kev siv ntau tshaj 25%. Kev siv nruab nrab ntawm cov neeg caij tsheb hauv Suav teb yog kwv yees li 160kg, lossis 13% xees, thiab muaj ntau chav rau kev txhim kho. Polypropylene panels tau nthuav dav los ntawm sab hauv mus rau sab nrauv, cov khoom siv thiab cov khoom siv ua haujlwm, tsim cov khoom siv daws teeb meem uas npog tag nrho lub neej ntawm cov khoom siv tsheb.

1.Interior: Ib qho kev hloov kho tshiab los ntawm kev ua haujlwm rau kev nplij siab.
Instrument Vaj Huam Sib Luag Skeletons yog cov khoom tseem ceeb ntawm sab hauv ntawm lub tsheb thiab yuav tsum muaj kev vibration resistant, shock resistant thiab kub resistant rau lub sij hawm ntev. Ib txwm hlau pob txha pob txha hnyav thiab kim, tab sis hloov kho cov nplooj ntawv polypropylene sib npaug siab rigidity, siab siab modulus tsawg ntom los ntawm ntev iav fiber reinforcement (LGFPP) technology. Piv txwv li, cov cuab yeej siv lub cev pob txha ntawm lub tsheb muaj 30% ntev fiberglass reinforced PP khoom nrog aa modulus tshaj 4000 MPa, aa notched cuam tshuam lub zog tshaj 10 kJ / m2 thiab qhov hnyav ntawm 40% tsawg dua li ntawm cov pob txha hlau, thaum ntsib kev sib tsoo kev ruaj ntseg.
Qhov Rooj Vaj Huam Sib Luag Trim yuav tsum sib npaug ntawm qhov cuam tshuam thiab qhov zoo ntawm qhov chaw. Cov nplooj ntawv polypropylene tuaj yeem ua kom zoo rau kev poob phaus thiab kev ua haujlwm los ntawm kev sib xyaw ua ke nrog elastomers xws li triethylene propylene roj hmab (EPP), POE thiab cov zaub mov tsis muaj zog xws li talc. Lub qhov rooj phaj ntawm ib qho qauv yog ua los ntawm 20% talc- puv + EPDM- cov khoom siv PP toughened, uas txo qhov hnyav los ntawm 35% thiab tsis muaj cov cim dab dej. Tsis tas li ntawd, nws tuav zoo toughness ntawm -30 degree, zoo tiv thaiv pob zeb cuam tshuam.
Seat Bases yuav tsum tiv taus tib neeg qhov hnyav thiab cov khoom hnyav. Hloov kho cov ntawv PP tuaj yeem txhim kho cov kabmob muaj peev xwm los ntawm kev ntxiv fiberglass lossis carbon fibers. Lub rooj zaum lub tsheb fais fab siv 20% carbon fiber reinforced PP khoom, uas tuaj yeem txo qhov hnyav los ntawm 20% piv nrog cov khoom siv nylon tsoos, thiab ua tau raws li kev xav tau ntawm kev vibration qaug zog, ncua kev pabcuam lub neej mus rau ntau tshaj 10 xyoo.
2.Exterior Trim: Kev tawg los ntawm kev txhawb nqa rau kev tsim kom zoo nkauj
Lub bumper yog qhov loj tshaj plaws PP tivthaiv ntawm lub tsheb sab nrauv trim thiab yuav tsum muaj lub zog nqus los tiv thaiv lub cev thaum muaj kev sib tsoo. Whereas cov tsoos bumpers yog 4 hli tuab, hloov cov ntaub ntawv polypropylene ua nyias -walled tsim tau los ntawm ib tug siab - ntws, qis- tawm qauv nthuav coefficient. Lub bumper pem hauv ntej ntawm ib tug qauv nta ib tug 13% mineral- puv + elastomer- toughened PP khoom, uas txo cov phab ntsa thickness rau 2.5 hli thiab txo qhov hnyav los ntawm 50%. Tsis tas li ntawd, nws tswj xyuas cov qauv kev ncaj ncees thaum lub sij hawm kev sib tsoo ntawm 80km / h thiab txo tus nqi txij nkawm los ntawm 30%.
Fender Liners yuav tsum tiv taus qhov cuam tshuam ntawm av thiab pob zeb nrog rau kev laus ntawm ultraviolet lub teeb. Cov ntawv polypropylene tuaj yeem siv sab nraum zoov txog li 10 xyoo yam tsis muaj kev tawg los ntawm kev ntxiv UV stabilizers thiab tiv thaiv khawb. Lub fender hauv ob sab phlu ntawm lub tsheb yog ua los ntawm PP cov ntaub ntawv nrog ib tug tshwj xeeb formula, nrog ib tug deg hardness ntawm 2H thiab ib tug 50% nce nyob rau hauv tej yam kuj. Nws kuj tseem txhawb nqa lacquer- cov txheej txheem pub dawb los txo cov nqi tsim khoom.
Daim phiaj thiab cov kab zoo nkauj yuav tsum sib npaug qhov hnyav thiab zoo nkauj. Microcellular foamed polypropylene daim ntawv, los ntawm cov tshuaj foaming technology, tuaj yeem tsim cov micropore hauv cov khoom, thaum tuav lub ntsej muag gloss, ua tiav 10% -20% qhov hnyav. Cov grille pem hauv ntej ntawm ib tus qauv yog ua los ntawm microporous foamed polypropylene, uas hnyav 15% tsawg dua li cov khoom siv, ua kom luv txhaj tshuaj molding voj voog los ntawm 20%, thiab txhim kho kev ua haujlwm zoo heev.

1.Front-Xaiv Modules: ib qho piv txwv ntawm kev tsim qauv
Pem hauv ntej -end module yuav tsum tau ua ke ntau ntau yam, xws li radiators, headlights thiab crash beams. Cov qauv hlau tsoos yog lub teeb yuag thiab muaj cov txheej txheem sib dhos nyuaj. Hloov kho PP nplooj ntawv, los ntawm iav fiber ntau qhov cuab yeej siv ntev, ua tiav ib qho kev txhaj tshuaj molding, yooj yim rau kev sib dhos. Ib tus qauv pem hauv ntej-end module nta 30% ntev fiberglass reinforced PP khoom uas hnyav 40% tsawg dua cov qauv hlau, txo cov khoom ntawm 12 mus rau 4 thiab txo lub sij hawm sib dhos los ntawm 60%. Nws kuj ua tau raws li qhov yuav tsum tau siv sijhawm ntev - ntawm 100℃.
2. Cov Khoom Siv Hluav Taws Xob: cov neeg saib xyuas kev nyab xeeb ntawm lub zog tshiab
Roj teeb lub tais ntawm lub tsheb hluav taws xob yuav tsum tau tiv taus qhov hnyav thiab kev co ntawm cov roj teeb pob thaum muab rwb thaiv tsev. Hloov kho PP nplooj ntawv ua tiav lub zog siab, modulus thiab nplaim retardants sib npaug los ntawm kev ntxiv fiberglass thiab nplaim hluav taws. roj teeb tais ntawm ib tug qauv yog ua los ntawm 40% iav fiber ntau -reinforced + halogen- dawb nplaim taws- PP khoom, uas muaj aa flexural zog ntawm ntau tshaj 300 MPa thiab ib tug nplaim retardant khoom ntawm UL94 V-0. Nws kuj tseem muaj qhov ruaj khov ntau dua li cov khoom siv hlau hauv qhov -40℃txog 120℃qhov kub thiab txias.
3. Lub Cev Lub Cev Muaj Zog: Qhov Kev Sib Tw Ob Qhov Kev Tiv Thaiv Kev Tiv Thaiv thiab Kev Nyuaj Siab
Lub hauv paus npog yuav tsum tau tiv thaiv qhov cuam tshuam ntawm pob zeb, dej ntsev corrosion, thiab kev vibrational qaug zog. Hloov kho cov ntawv PP, los ntawm kev sib ntxiv ntawm silicone khawb tus neeg saib xyuas thiab tiv thaiv - tus neeg saib xyuas kev laus, ua tiav 10 xyoo ntawm kev siv tsis yog - corrosive sab nraum zoov. Lub npog hauv qab ntawm lub tsheb yog ua los ntawm 20% talc- puv + POE- cov khoom siv PP toughened, uas txhim kho kev cuam tshuam los ntawm 30%, txhawb nqa cov txheej txheem lacquerfree thiab txo cov nqi tsim khoom los ntawm 20%.

1. Cov tshuab roj: cov ntaub ntawv tseem ceeb rau Chemical Corrosion Resistance
Cov kav dej roj yuav raug mus ntev - yaig los ntawm roj av, ethanol thiab lwm yam xov xwm. Los ntawm kev ntxiv fluoride roj hmab los yog nitrile butadiene roj hmab (NBR), cov roj kuj ntawm Hloov PP nplooj ntawv tuaj yeem nce 50%. Cov yeeb nkab roj ntawm ib tus qauv, ua los ntawm NBR- hloov kho cov khoom PP, tsis o tom qab 1,000 teev ntawm immersion hauv roj av ntawm 120℃thiab dhau SAE J1737 permeation test, ua tau raws li cov kev cai nruj tshaj plaws hauv ntiaj teb.
2. Intake Manifolds: Ntsuas kub ua haujlwm thiab txo suab nrov
Intake manifolds yuav tsum tiv taus qhov kub thiab txias ntawm lub cav thiab txo cov suab nrov. Hloov kho cov ntawv PP tuaj yeem siv tau ntev ntawm 150℃los ntawm kev ntxiv cov cua sov thiab cov suab nrov txo. Cov khoom noj khoom haus ntawm ib tus qauv tshwj xeeb yog tsim los ntawm cov qauv tshwj xeeb polypropylene, uas yog 30% sib zog dua li cov nylon ib txwm, thiab muaj 5 dB txo cov suab nrov, raws li Euro VI emission qauv.
3. Cov Cuab Yeej Siv Hluav Taws Xob: lub teeb yuag thiab qis qis VOC Optimization
Cov cua txias ducts yuav tsum ua kom tau raws li qhov xav tau ntawm qhov hnyav, tsis muaj ntxhiab tsw thiab tsis kub tsis kam. Hloov kho cov ntawv PP tuaj yeem txo VOC emissions los ntawm 80% los ntawm kev ntxiv cov nroj tsuag fibers thiab sorbent. Cov cua txias ducts ntawm ib qho qauv yog ua los ntawm cov khoom siv fiber ntau ntxiv PP, uas txo qhov hnyav los ntawm 25% piv rau cov khoom siv ib txwm muaj, thiab muaj qhov ntsuas tsis zoo txog li 3, uas ua tau raws li cov qauv sab hauv siab -kawg qauv.

1. Kev Ua Tau Zoo: Los ntawm "Peb Siab thiab Ib Qis" mus rau "Tsib-Txoj Kev Txhim Kho"
Tam sim no, tsheb PP kev hloov kho thev naus laus zis tau hloov kho rau "siab txaus, siab modulus, siab cuam tshuam, tsis tshua muaj VOC, tus nqi qis." Piv txwv li, ib lub tuam txhab tsim supercritical fluid foaming technology uas tsim nanopores ntawm polypropylene los xij, ua tiav 30% poob phaus thaum tswj cov khoom siv kho tshuab, thiab txo cov kev txhaj tshuaj molding los ntawm 40%.
2. Kev ua haujlwm: los ntawm ib qho kev ua tau zoo mus rau Multi-Scenario Adaptation
Los ntawm kev ntxiv cov khoom siv hluav taws xob, cov khoom sib nqus lossis cov khoom siv photosensitive, PP cov ntawv tuaj yeem ua haujlwm tshwj xeeb xws li electromagnetic shielding, sib nqus teb lossis photochromism. Piv txwv li, ib lub tuam txhab tsim cov khoom siv hluav taws xob PP qhov chaw tiv thaiv tsawg dua 106 Ω / sq, haum rau electromagnetic shielding nyob rau hauv hluav taws xob tsheb roj teeb packs, uas yog 60% sib dua li tsoos hlau shielding txheej.
3. Cycling: los ntawm Linear Economy mus kaw - voj
Nrog rau kev ua raws li EU Scrap Car Directive, daim ntawv thov ntawm cov khoom siv polypropylene tau dhau los ua qhov tseem ceeb ntawm kev lag luam. Lub tuam txhab tau tsim 65% recyclable + 30% fiberglass reinforced PP composites siv AI pab sorting thiab chemical recycling technologies. Siv rau lub hauv paus ntawm lub tsheb qhov chaw console, nws txo nws cov pa roj carbon hneev taw los ntawm 50%, piv rau qhov ua tau zoo ntawm cov khoom siv qub qub.
Xaus:
Polypropylene board tau dhau los ua qhov tseem ceeb ntawm kev tsim kho tshiab hauv kev lag luam tsheb vim nws lub teeb yuag, kev ua haujlwm siab thiab tsim qauv. Los ntawm kev nplij siab ntawm sab hauv mus rau kev zoo nkauj ntawm sab nrauv, los ntawm kev sib xyaw tsim ntawm cov khoom siv rau cov khoom siv sib txawv ntawm cov khoom siv ua haujlwm, polypropylene panels tau tsav tsheb kev lag luam hauv kev ua haujlwm zoo dua, ib puag ncig tus phooj ywg thiab kev txawj ntse los ntawm kev siv thev naus laus zis txuas ntxiv. Nyob rau hauv lub neej yav tom ntej, polypropylene panels yuav ua lub luag haujlwm tseem ceeb hauv kev lag luam automotive, pab txhawb cov kev daws teeb meem tseem ceeb rau txoj kev loj hlob ntawm kev lag luam tsheb thauj mus los thoob ntiaj teb, vim cov ntaub ntawv kev tshawb fawb thiab kev tsim khoom siv tau txuas ntxiv.