Yuav ua li cas mus xaiv cov kua nplaum rau polyethylene: lub tswv yim thiab xyuas

Polyethylene - ib qho ntawm feem nrov thiab zoo-paub cov ntaub ntawv. Tsis kim heev thiab, nyob rau hauv Feem ntau, unpretentious. Polyethylene yog feem ntau siv nyob rau hauv kev tsim kho ntawm greenhouses thiab greenhouses rau rwb thaiv tsev thiab phuam-proofing ntawm ntau yam khoom. Thaum lub sij hawm ntawm lub chaw ua hauj lwm ntawm ntau masters ntsib qhov yuav tsum tau muab nplaum cov khoom. Qhov no yog qhov chaw uas cov teeb meem pib. Qhov tseeb hais tias polyethylene yog tsis zoo kev twb kev txuas. Tab sis luag nws yog tseem tau nrog kev pab los ntawm cov kua nplaum. Nws yog tseem tau mus ua nyob rau hauv qhov kev txiav txim ntawm tshav kub. Yuav ua li cas los xaiv tus txoj cai nplaum rau lub polyethylene thiab hais tias nws yog tsim nyog them sai sai thaum ua hauj lwm? Cov lus teb rau cov no thiab lwm cov lus nug yuav tsum nyob hauv qab no.

thaj chaw ntawm polyethylene

Qhov no zoo kawg li cov ntaub ntawv uas muaj ntau yam interesting zog. Polyethylene yog siv los tiv thaiv tiv thaiv dej yog ib qho zoo heev hluav taws xob insulator thiab muaj peev xwm sawv ntawm absorbing ib tug ntawm cov feem ntau txaus ntshai ntaub ntawv ntawm hluav taws xob. Nws yog yuav luag tag resistant mus rau lub tshuaj. Nws yog ib qhov kawg zoo tej zaum ntawm meej mom dhau mus ua ib tug disadvantage. Lub foob tej khoom thiab yuav ua li cas los xaiv nplaum polyethylene?

Interestingly, lub ua ke - tsis yog tsuas yog ib tug tshuaj, tab sis rau ib co raws li qhov hluav taws xob txheej txheem. Molecules kev cob cog rua tshuaj yog attracted rau txhua lwm yam vim qhov txawv nyob rau hauv lawv cov nqi. Yog li ntawd nws yog heev yooj yim mus nrhiav tau ib yam khoom uas adheres zoo mus rau lub polyethylene yog, thiab tom qab so qhuav nrees tuas ua ke lub sib raug zoo daim. Txij li thaum lub lwg me me ntawm cov khoom yog heev "kuas", ces muab nws yuav ua tau heev yooj yim nrog rau lwm cov ntsiab. Tseem, cov tshuaj lag luam muaj tsim ib tug kua nplaum rau tsevneeg polyethylene. Thiab tsis yog ib tug. Tej nplaum yuav tsum tau muaj tej yam khoom. Cia saib nws yog dab tsi.

Yuav tsum muaj rau cov nplaum khoom

Yog hais tias koj txiav txim siab los lo polyethylene los yog penofenol (nws zoo ntawm npaus) mus rau ib tug qhob los yog av ci nto, lub fastening nplaum txheej yuav tsum tau muaj ib tug xov tooj ntawm cov khoom:

• Nyob ruaj khov rau cov teebmeem ntawm weathering.
• Tsis txhob ua kom puas lub abraded khoom.
• Muaj ib tug high degree ntawm hygroscopicity thiab adhesion.
• Nco resistant kom tsawg kub.
• Muaj antiseptic thiab fungistatisticheskie zoo.
• Kom lawv lub zog rau ib ntev lub sij hawm.

Consumer xyuas hais tias nws yog tseem tsim nyog them xim rau cov ib puag ncig ruaj ntseg ntawm cov nplaum. Qhov no yog tshwj xeeb tshaj yog ib qho tseem ceeb thaum uas siv cov ntaub ntawv rau sab hauv kho kom zoo nkauj. Yog hais tias koj txiav txim siab siv polyethylene (penofenol) nyob rau hauv lub lwm saunas los yog da, peb yuav tsum them kom ntxiv thaum tshav kub kub resistant nplaum thiab nws kuj mus dej kub vapor.

Yuav ua li cas mus xaiv cov kua nplaum?

Yog hais tias koj tsis paub dab tsi zoo ntawm nplaum polyethylene yog txoj cai rau koj, nug tus neeg muag khoom yuav tau saib ib tug uas muaj xws li cov methyl acrylate. Qhov no cov ntaub ntawv uas muab ceev softening polyethylene thiab high-zoo tsevneeg. Tsis tas li ntawd cov txhais tau tias tej zaum yuav muaj xws li chromic anhydride, ntau yam acids thiab xylene. Lub undeniable kom zoo dua ntawm no nplaum yog tias thaum twg koj siv nws koj tsis tas yuav ntxiv nto kev kho mob. Tab sis cov neeg siv hais tias nws muaj ib tug khuam. Tej nplaum polyethylene yog heev tshuaj lom. Yog li ntawd, tag nrho cov ua hauj lwm yog zoo tshaj plaws ua si nraum zoov. Zoo, los yog tsawg kawg yuav tsum muab zoo chaw dim pa. Nws yog qhov zoo tshaj plaws rau muab "tej hauj lwm" rau ntawm ib tug kub ntawm +35 c. Nws yeej tsis ntshai ntawm dej, tab sis yog yooj yim cig.

Tsis tas li ntawd nyob rau hauv cov khw yuav nrhiav tau ib tug txhais tau tias rau txuas lub polymers. Lawv muag nyob rau hauv daim ntawv ntawm ib tug tuab muab tshuaj txhuam. Cov muaj lub kuab feem ntau txuas. Tom qab kev twb kev txuas ntawm ob lub Cheebtsam, lub nplaum acquires yam qauv. Raws li cov kuab suab sai sai, siv ib tug sib tov ntawm yuav tsum tau sai sai. Yog li ntawd tsis txhob cia li yug tau ib tug ntau.

Tab sis neoprene cov nplaum rau cov polyethylene yog zoo dua tsis siv. Xws li ib tug nyob tus yeees yog tsim rau txuas roj hmab los yog rubberized qhov chaw neoprene ntaub, tawv, muaj, tej hub, hlau, nyob rau hauv tej thaum lawv tseem. Tab sis rau polystyrene, txhab polypropylene, polyethylene, thiab plasticized PVC nws yog zoo dua tsis mus thov. Tsis muaj dab tsi yuav.

Acrylic nplaum nrog ib tug tub lim

Yog hais tias koj tsis paub dab tsi los muab polyethylene ua npuas ncauj, sim siv ob-tivthaiv rau lub hauv paus ntawm lub tib lub methyl. Xwb, koj yuav tau sim cov yooj yim-Mix PE-PP Hom Weicon. Nws muaj zoo heev adhesion zog. Nws yog siv rau tsevneeg polypropylene, polyvinylchloride thiab lwm yam polymeric cov ntaub ntawv. Thaum ua hauj lwm nrog rau qhov no nplaum yuav tau maj nrawm nroos. Nws khaws nws cov khoom nyob rau hauv lub qhib huab cua yog tsis ntau tshaj li peb feeb.

Ib qho yooj yim-Mix PE-PP muaj ib tug additive muaj me me iav hlaws dai. Qhov no muab tub lim tsis tawm hauv lub scene ntawm cov kua nplaum daim ntawv cog lus. Yog li ntawd, cov leeg puv muaj zog txaus. Tej cov nplaum rau cov polyethylene ua npuas ncauj yuav tsum tau ua ntawv thov tsuas yog los ntawm cov thawj lub ntim ntawm tus tov khoom. Ua hauj lwm nrog nws yog zoo tshaj plaws ntawm ib tug kub ntawm +22 ° C. Tag nrho cov hardening yog ensured tsis ntxov tshaj li 5-6 xuab moos.

epoxy nplaum

Ntawm cov hoob kawm, nws tsis yog heev haum cov nplaum rau cov tsevneeg polyethylene. Tiam sis yog tias koj nrhiav tsis tau lwm yam, koj yuav tau sim. Cia li muaj ua ntej npaj rau qhov chaw:

1. Cov npoo ntawm cov sib raug zoo qhov chaw "ntxuav" fine Emery daim ntaub. Ces kom huv si degrease lawv.
2. Ob qhov chaw ntawm tus txheej txheem ib tug 20% cov kua ntawm chromic anhydride los yog ib tug 25% tshuaj ntawm poov tshuaj dichromate. Yog hais tias cov tshuaj yuav tsis tsum pom, koj yuav siv tau ib tug muaj zog tshuaj ntawm poov tshuaj permanganate.
3. Tom qab nto kho qhuav.
4. Dilute lub nplaum raws li cov lus qhia. Thov ib nyias txheej ntawm lub ua ke chaw. Tam sim ntawd dock cov lus.
5. Sawv rau ob peb teev, thiab zoo dua hnub - txog li ua kom tiav solidification leeg.

Neeg xyuas qhia tau tias cov phenol-formaldehyde cob muaj zoo heev adhesion rau polyethylene. Yog li ntawd, yog hais tias koj ua raws li no kom zoo zoo cov lus qhia, koj yuav kawm tau ntawv zoo.

So polyethylene: kev qhia

Raws li koj tau pom, muab nplaum polyethylene, ib co kev txawj ntse koj tsis xav tau. Tus txheej txheem ua hauj lwm tam sim ntawd paub:

• ntxuav;
• degrease
• qhuav;
• kis tau tus nplaum muaj pes tsawg leeg;
• foob qhov chaw;
• xovxwm;
• tawm mus rau qhuav kiag li.

Nyob rau tib lub sij hawm, raws li koj yuav nrog lwm yam tshuaj lom, yuav tsum tau muaj kev txhawj xeeb txog cov nyob ntawm kev tiv thaiv tsom iav, hnab looj tes thiab qhov ncauj.