Fiberglass! koj yog leej twg?

I. yog dab tsiFiberglass? Fiberglass yog ib qho khoom siv siab -kev ua haujlwm tsis muaj organic tsis yog- cov khoom siv hlau nrog ntau ntau yam. Txoj kab uas hla ntawm ib txoj kab nruab nrab ntawm ob peb micrometers mus rau ntau tshaj nees nkaum micrometers, sib npaug li 1/20 txog 1/5 ntawm txoj kab uas hla ntawm tib neeg cov plaub hau. Txhua pob ntawm fiber ntau muaj ntau pua lossis ntau txhiab tus tib filaments. 1. Raw Material Source: Iav spheres lossis khib nyiab iav, thiab lwm yam . 2. Cov Khoom Tseem Ceeb: Silica, aluminium oxide, calcium oxide, boron oxide, magnesium oxide, sodium oxide, thiab lwm yam . 3. Txheej Txheem: Siab - cua kub melting, thiab lwm yam. Qhov zoo: Cov rwb thaiv tsev zoo, muaj zog tiv thaiv tshav kub, zoo corrosion kuj, siab mechanical zog, tsis tshua muaj nqi . 5. Siv ceev: iav fiber ntau ntom 2.5 g / cm³

II. Kev faib tawm tseem ceeb ntawm Cov iav Fiber iav fiber ntau feem ntau txawv los ntawm cov ntsiab lus sib txawv alkali hlau. Alkali hlau oxides yog ib qho ntawm cov khoom tseem ceeb ntawm cov iav zoo tib yam, feem ntau txo qhov melting point ntawm iav. Qhov siab dua cov ntsiab lus hlau alkali, qhov qis dua cov tshuaj lom neeg ruaj khov, hluav taws xob rwb thaiv tsev, thiab lub zog ntawm cov iav fiber ntau.

1. Alkali-dawb iav fiber (E iav fiber): Alkali hlau oxide cov ntsiab lus<0.05%, good chemical stability, electrical insulation, and strength. Mainly used as electrical insulation material and reinforcing material for fiberglass. Alkali-free glass fiber is a major filler type for plastic modification, accounting for over 95% of the industry's production scale.

2. Nruab nrab-alkali iav fiber (C iav fiber ntau): Alkali hlau oxide cov ntsiab lus 11.5-12.5%, cov ntsiab lus siab alkali, tsis tuaj yeem siv los ua cov khoom siv hluav taws xob. Nws cov tshuaj ruaj khov thiab lub zog yog qhov zoo, feem ntau yog siv los ua cov ntaub latex, woven fabric substrate, acid filter fabric, window screen substrate, etc., thiab kuj tseem siv tau los ua kua qaub lim ntaub thiab qhov rais screen substrate (qis nqi, daim ntawv thov dav).

3. High-alkali glass fiber (A glass fiber): Alkali metal oxide content >15%. Cov iav fibers kos los ntawm crushed ca iav, crushed fwj iav, thiab lwm yam, nyob rau hauv qeb no. Nws tuaj yeem siv los ua cov khoom sib cais rau cov roj teeb cia, cov ntaub qhwv cov yeeb nkab, thiab muaj kev xav, thiab lwm yam., rau kev tiv thaiv dej thiab dej tsis zoo.

4. Tshwj xeeb iav Fiber (S- iav): Siab- lub zog iav fiber ntau (S- iav) muaj li ntawm cov ntshiab magnesium, aluminium, thiab silicon ternary cov ntaub ntawv. Nws feem ntau suav nrog magnesium-aluminium-silicon siab-lub zog, siab-elasticity iav fiber, silicon-aluminium-calcium-magnesium chemically resistant iav fiber, lead{12}}muaj fiber ntau, quatz fiber, high{13}. Yog tias cais raws li txoj kab uas hla monofilament, nws tuaj yeem muab faib ua tsib pawg: ultrafine fiber (<4µm), high-grade fiber (3-10µm), medium-grade fiber (10-20µm), primary fiber (>20µm), thiab coarse fiber (30µm). Kev hloov kho plastics feem ntau siv 10-14µm nruab nrab qib fiber ntau.

III.Lub luag haujlwm ntawm cov khoom sib txawv hauv iav Fiber

1. Silica (SiO2): Cov khoom siv hauv paus, lub moj khaum

2. Alumina (Al2O3): Txo crystallinity thiab expansion coefficient, txhim kho stability thiab lub zog

3. Boron oxide (Be2O3) thiab hlau oxide (Fe2O3): Fluxing, txhim kho fluidity

4. Calcium oxide thiab magnesium oxide: Txo viscosity ntawm qhov kub thiab txias, txhawb kev yaj, ua kom pom tseeb, thiab ua kom nrawm nrawm

IV. Lub luag haujlwm ntawm iav Fiber hauv kev hloov kho yas:

Ntxiv cov iav fiber ntau rau cov qauv kev hloov kho yas tuaj yeem txhim kho cov neeg kho tshuab lub zog, tiv thaiv tshav kub, qhov ruaj khov, thiab nplaim hluav taws kub ntawm cov yas. Piv txwv li, PP-GF/LGF yog siv nyob rau hauv tsheb pem hauv ntej bumpers, nrog ib tug lub zog - mus rau - luj piv plaub npaug ntawm cov hlau thiab ob zaug ntawm txhuas, thiab zoo heev corrosion kuj. Cov iav fiber ntau tuaj yeem sib xyaw nrog ntau yam resins (xws li PP, ABS, PC), thiab nws qhov kev ua tau zoo tuaj yeem hloov kho kom zoo los ntawm kev kho cov fiber ntau ntev (luv lossis ntev fibers) thiab qhov sib ntxiv (los ntawm 5% mus rau 60% +).

V. Yuav Ua Li Cas Tiv Thaiv Fiberglass Injuries 1. Txhim Kho Cov Txheej Txheem Zoo: Hauv cov yas hloov kho, fiberglass yog nruj nreem khi rau resin los ntawm dispersion thiab sib tov, tsim ib txheej tuab, txo qhov kev pheej hmoo ntawm fiber ntau detachment. Txhawm rau kom tsis txhob muaj fiber ntau ntab thaum lub sijhawm ua tiav, qhov sib xyaw ntawm fiberglass thiab resin tuaj yeem txhim kho. Piv txwv li, silane coupling agents tuaj yeem siv los txhim kho kev sib txuas ntawm cov fiberglass thiab matrix, suppressing lub "tseem ceeb wick effect" thaum xyuas kom meej tias txhua yam khoom tsis degrade . 2. Risk Management: Exposed fiberglass khoom nyob rau hauv lub tsev los yog cov khoom siv hauv tsev (xws li lub tsev pheebsuab thav ntawv thiab inferior encapsulation tsis muaj cov khoom siv hluav taws xob thiab cov umbrella) khib nyiab thaum laus los yog puas. Kev pheej hmoo yuav tsum raug txo los ntawm kev tswj hwm lub neej kev pabcuam (pom zoo Tsawg dua lossis sib npaug li 10 xyoo), daim ntawv thov scenarios (kev ntxhov siab), thiab kev ua kom zoo dua qub (xws li ntug passivation). Raws li kev tswj hwm kev tshawb fawb, cov kev pheej hmoo cuam tshuam nrog nws daim ntawv thov los ua cov khoom siv ntxiv hauv cov yas hloov kho yuav txawv heev ntawm cov duab "dab ntxwg nyoog" pom los ntawm pej xeem.

VI. Txoj Kev Ntsuab rau iav Fiber: Nyob rau hauv cov qauv ntawm kev tiv thaiv ib puag ncig ntsuab, kev ua tsis tiav thiab rov ua dua tshiab ntawm cov khoom siv iav fiber ntau yuav yog qhov kev sib tw tshiab uas cov kws kho mob xav tau los daws.