Cov iav fiber ntau PP-R (abbreviated li FR / PP-R) yeeb nkab yog cov yeeb nkab ua tau zoo uas tsim los ntawm ntau txheej txheej co-extrusion los ntawm cov cuab yeej tshwj xeeb thiab cov cuab yeej siv, tsis tshua muaj kub thiab kub ceev.
Raws li kev tswj hwm qhov zoo thiab lub hauv paus ntawm cov khoom qub PP-R, cov khoom no kuj muaj cov yam ntxwv tseem ceeb hauv qab no:
1. Lub coefficient ntawm linear expansion tsuas yog li ntawm 20 ~ 30 feem pua ntawm cov khoom PP-R zoo tib yam; nws tag nrho daws qhov teeb meem ntawm kev nthuav dav thiab kev cog lus ntawm cov kav dej yas.
2. Lub rigidity ntawm cov yeeb nkab yog txhim khu kev qha los tiv thaiv cov sagging ntawm cov yeeb nkab, thiab tib lub sij hawm, qhov ceev thiab tus naj npawb ntawm cov ntsiab lus ruaj khov yog txo, yog li txo tus nqi tag nrho ntawm qhov project.
3. Lub siab tiv thaiv qib siab dua, thiab lub neej kev pab cuam ntev dua nyob rau hauv cov qauv tsim kev vibration quab yuam.
4. Zoo dua kub ua hauj, pom tseeb nyhuv ntawm lub zog txuag thiab kev txo nqi; FR / PP-R yog siv rau hauv cov dej kub, thiab kev siv ib txwm kub tuaj yeem ncav cuag 95 ~ 100 degree, uas tsis tsuas yog nce qhov kub ntawm qhov nruab nrab siv, tab sis kuj txo cov thermal rwb thaiv tsev khoom. Thickness, nws cov nqi them nqi qis dua.
5. Cov dej ntws loj: Nyob rau hauv tib theem ntawm qhov siab, phab ntsa tuab ntawm FR / PP-R yeeb nkab ua kom lub puab txoj kab uas hla ntawm cov yeeb nkab, yog li ua kom cov dej ntws (nce 20 feem pua).
6. Qhov teeb meem ntawm oxygen permeability ntawm cov kav dej yog daws. Lub puab nto ncaj qha rau hauv kev sib cuag nrog dej yog huv si, tsis muaj tshuaj lom, thiab muaj kev sib khi zoo, thiab yuav tsis tsim cov dej moss. Cov muaj pes tsawg leeg ntawm nruab nrab txheej ntawm cov iav fiber reinforced FR / PP-R yeeb nkab kiag li cais cov huab cua sab nraud los ntawm infiltrating cov yeeb nkab, yog li inhibiting kev loj hlob ntawm algae thiab ua kom cov dej tshiab thiab ntshiab.