LFT Polymer yog dab tsi

LFT Polymer yog dab tsi?

 

LFT (Long-Fiber Reinforced Thermoplastic) polymer yog cov khoom sib xyaw ua ke uas cov fibers ntev dua 10mm-feem ntau yog iav, carbon, los yog basalt- yog embedded nyob rau hauv thermoplastic matrices xws li PP, PA, los yog PPS. Thawj qhov kev xav hauv xyoo 1980s, LFT thev naus laus zis tau txais lub zog nyob rau xyoo 2000s raws li cov neeg tsim khoom siv hluav taws xob nrhiav cov khoom siv hlau hnyav. Tsis zoo li cov tsoos luv luv-fiber composites, LFT khaws fiber ntau ntev thaum ua, xa 2-3x siab dua qhov cuam tshuam lub zog thiab 30% zoo dua qhov seem stability. Kev lag luam thoob ntiaj teb LFT tam sim no ua haujlwm rau tsheb, aerospace, thiab cov khoom siv hauv kev lag luam, nrog kev tsim kho tshiab xws li bio-based PA410 tsav kev tsim khoom lag luam.

Vim li cas LFT ua haujlwm zoo dua cov khoom siv?

Cov khawv koob ntawm LFT nyob hauv fiber ntau qhov ntev (L₀). For PP composites, fibers shorter than 3.1mm simply pull out under stress-like weak anchors. LFT maintains fibers >10mm los ntawm kev ua haujlwm tshwj xeeb:

• Direct Processing (LFT-D):Fibers yog impregnated nrog molten polymer nyob rau hauv -pwm, minimizing breakage.
• Granule Form (LFT-G):Ua ntej- txiav pellets khaws 5-25mm fibers rau kev txhaj tshuaj molding.

Qhov kev ntseeg ruaj khov no ua rau LFT ua tiav 500 MPa lub zog tensile-rivaling aluminium ntawm 1/3 qhov hnyav. Automotive pem hauv ntej-end modules siv LFT-PP txo qhov hnyav los ntawm 40% vs hlau thaum nqus 30% ntau dua lub zog sib tsoo.

LFT hauv Kev Ua Haujlwm: Daim Ntawv Thov Kev Lag Luam

Qhov tseem ceeb ntawm LFT Polymers

• ⏱️ 50% sai dua ntau lawm vs thermoset composites
• ♻️ 100% recyclable - regrind rau tsis yog - yam khoom
• 🌡️ Tiv thaiv -40 ° C txog 200 ° C (PA410 qib)
• 📉 0.2% molding shrinkage vs 1.5% rau SMC

Txhim kho koj tus qauv tsim nrog LFT Solutions