Ndeapi marudzi emafiber anowanzoshandiswa mu polymer mortar?

Kuwedzera mafiibhi kudhaka repolymer kuvandudza mashandiro akazara edhaka yave nzira yakajairika uye inogoneka. Mafibhi anowanzo shandiswa ndeaya anotevera

Alkali-resistant fiberglass?

Girazi faibha inogadzirwa nekunyungudusa silicon dioxide, maokisisi ane aruminiyamu, calcium, boron nezvimwe zvinhu, uye shoma shoma yekubatsira kugadzirisa senge sodium oxide uye potassium oxide mumabhora egirazi, uyezve kunyunguduka nekudhirowa mabhora egirazi mucrucible. Tambo imwe neimwe inotorwa kubva mucrucible inonzi monofilament, uye ese monofilaments anotorwa kubva mucrucible anounganidzwa kuita shinda mbishi (tow) mushure mekupfuura nepakati petangi inonyura. Mushure mekucheka tambo, inogona kushandiswa mu polymer mortar.

Maitiro ekuita kwegirazi fiber isimba rakakura, yakaderera modulus, yakakwira elongation, yakaderera mutsara wekuwedzera coefficient, uye yakaderera thermal conductivity. Simba rekusimba regirazi fiber rinopfuura simba remhando dzakasiyana dzesimbi (1010-1815 MPa).

Velen fiber?

Chinhu chikuru chevinylon ndeye polyvinyl doro, asi vinyl doro haina kugadzikana. Kazhinji, vinyl doro acetate (vinyl acetate) ine yakagadzikana mashandiro inoshandiswa semonomer ku polymerize, uyezve inozobuda polyvinyl acetate inodhaka kuti iwane polyvinyl doro. Mushure mekunge siriki inobatwa ne formaldehyde, iyo inopisa mvura inodzivirira vinylon inogona kuwanikwa. Tembiricha yekunyunguduka (225-230C) yepolyvinyl doro yakakwirira kudarika tembiricha yekuora (200-220C), saka inorukwa nemhinduro kuruka.

Vinylon ine yakasimba hygroscopicity uye ndiyo yakanyanya hygroscopic siyana pakati pesynthetic fibers, iri pedyo nekotoni (8%). Vinylon yakasimba zvishoma kudarika donje uye yakasimba kudarika makushe. Corrosion resistance uye light resistance: inseluble in general organic acids, alcohols, esters uye petroleum rambi zvinonyungudutsa, hazvisi nyore kuumba, uye kurasikirwa kwesimba hakuna kukura kana kuratidzwa nechiedza chezuva. Izvo zvisingabatsiri ndezvokuti kupisa kwemvura inopisa hakuna kunaka zvakakwana uye elasticity haina kunaka.

Acrylic fiber?

Iyo inoreva iyo yakagadzirwa fiber yakagadzirwa nekunyorova kuruka kana yakaoma kuruka ine inopfuura 85% yecopolymer yeacrylonitrile uye yechipiri neyechitatu monomers.

Acrylic fiber ine yakanakisa mwenje kuramba uye kupikisa kwemamiriro ekunze, inova ndiyo yakanyanya kunaka pakati pezvakajairwa machira. Kana acrylic fiber inoratidzwa kuzuva kwegore rimwe chete, simba rayo rinongoderera ne20%. Acrylic fiber ine yakanaka kugadzikana kwemakemikari, acid kuramba, isina simba alkali resistance, oxidation resistance uye organic solvent resistance. Zvisinei, acrylic fibers inoshanduka yero mu lye, uye macromolecules achaputsa. Iyo quasi-crystalline chimiro che acrylic fiber inoita iyo fiber thermoelastic. Pamusoro pezvo, acrylic faibha ine yakanaka yekupisa inodzivirira, haina mildew, uye haityi zvipembenene, asi ine kushomeka kwekushomeka uye kusagadzikana kwechimiro.

Polypropylene fibers?

A polyolefin faibha yakagadzirwa kubva stereoregular isotactic polypropylene polymer nekunyunguduka kutenderera. Kuwanda kwehukama ndiko kudiki pakati pemafayibha ekugadzira, iyo yakaoma uye kunyorova simba yakaenzana, uye kemikari corrosion resistance yakanaka. Asi zuva kuchembera murombo. Kana iyo polypropylene mesh fiber yakaiswa mudhaka, panguva yekusanganiswa kwedhaka, iyo transverse yekubatanidza pakati pefiber monofilaments inoparadzwa nekukwesha uye friction yedhaka pachayo, uye iyo fiber monofilament kana network dhizaini inovhurwa zvizere, saka. sekuziva huwandu. Mhedzisiro yemafuta mazhinji epolypropylene akasanganiswa mukongiri.

Nylon fiber?

Polyamide, inowanzozivikanwa senaironi, izwi rinowanzo reva thermoplastic resins ine akadzokororwa amide mapoka-[NHCO]-pacheni huru yemamorekuru.

Nylon ine yakakwira mechani simba, yakakwira kunyorovesa poindi, kupisa kupisa, kudzika friction coefficient, kupfeka kuramba, self-lubrication, shock absorption uye kuderedza ruzha, mafuta kuramba, kusimba kweasidhi kuramba, alkali resistance uye general solvents, yakanaka magetsi ekudzivirira, ane Self- kudzima, kusiri muchetura, kusanhuwa, kuramba kwakanaka kwemamiriro ekunze, kusadhaya zvisina kunaka. Izvo zvisingabatsiri ndezvokuti ine mvura yakakwirira yemvura, iyo inokanganisa dimensional kugadzikana uye magetsi emagetsi. Fiber reinforcement inogona kuderedza kunyura kwemvura kweresin, kuitira kuti ishande pasi pekushisa kwepamusoro uye hunyoro hwepamusoro. Nylon ine hukama hwakanaka kwazvo negirazi fibers.

Polyethylene fiber?

Polyolefin faibha dzakarukwa kubva mumutsara we polyethylene (yakakwirira-density polyethylene) nekunyunguduka kuruka. Zvimiro zvemudziyo ndezvi:

(1) Simba reFaibha uye kurebesa zviri pedyo neaya epolypropylene;

(2) Hunyoro hwekutora hunyoro hwakafanana nehwepolypropylene, uye mwero wekuwanazve mwando uri zero pasi pemamiriro emuchadenga;

(3) Iine zvimiro zvemakemikari zvakadzikama, yakanaka makemikari kuramba uye kusagadzikana kwekuora;

(4) Kupisa kwekupisa kwakashata, asi kupisa nekunyorova kwekudzivirira kuri nani, nzvimbo yayo yekunyunguduka i110-120 ° C, iyo yakaderera kupfuura mamwe mafiibhi, uye kushorwa kwemakomba ekunyunguduka kwakashata kwazvo;

(5) Iine magetsi ekudzivirira zvakanaka. Chiedza chekudzivirira hachina kunaka, uye zviri nyore kukwegura pasi pekuvhenekera kwechiedza.

Aramid fiber?

Cheni huru yepolymer macromolecule inoumbwa neinonhuhwirira zvindori uye amide bond, uye inokwana 85% yemapoka emaamide akabatanidzwa zvakananga kune zvindori zvinonhuhwirira; maatomu enitrogen nemapoka ecarbonyl ari mumapoka emaamide echimwe nechimwe chinodzokorora chinosunganidzwa zvakananga kune zvindori zvinonhuhwirira Iyo polima umo maatomu ekabhoni akabatana uye anotsiva imwe yemaatomu ehydrogen anonzi aramid resin, uye mafiber akarukwa kubva mairi anodaidzwa pamwechete. aramid fibers.

Aramid fiber ine yakanakisa mechanicha uye inosimba zvimiro senge yakakwira tensile simba, yakakwira tensile modulus, yakaderera density, yakanaka kunyura simba uye kuvhunduka kubatwa, kupfeka kuramba, kukanganisa kuramba, kuneta kuramba, uye dimensional kugadzikana. Kemikari corrosion, kupisa kwakanyanya kupikisa, kuwedzera kwakaderera, kuderera kwekushisa kwekushisa, kusapisa, kusanyunguduka uye zvimwe zvakatanhamara zvinopisa zvinopisa uye zvakanakisa dielectric zvivakwa.

huni fiber?

Huni faibha inoreva ma mechanic tissue anoumbwa ne lignified thickened cell wall uye masero efiber ane akatsetseka semagomba, uye ndechimwe chezvinhu zvikuru zvinoumba xylem.

Huni faibha ndiyo yakasikwa fiber inotora mvura uye isinganyunguriki mumvura. Iyo ine yakanakisa kuchinjika uye dispersibility.