Xov xwm

Lub hnab ua tshuab yog lub tshuab ua txhua yam ntawm cov hnab yas lossis lwm lub hnab ntim khoom. Nws cov kev ua haujlwm yog txhua yam ntawm cov yas lossis lwm yam khoom siv hnab nrog ntau qhov sib txawv, thicknesses thiab specifications. Feem ntau hais lus, hnab yas yog cov khoom tseem ceeb.

Lub hnab yas ua tshuab

1. Kev faib tawm thiab kev siv cov hnab yas

1. Hom hnab yas
(1) Kev kub siab polyethylene hnab yas
(2) Tsis tshua muaj siab polyethylene hnab yas
(3) Polypropylene hnab yas
(4) PVC hnab yas

2. Siv cov hnab yas

(1) Lub hom phiaj ntawm kev kub siab polyethylene hnab yas:
A. Kev ntim khoom noj: ncuav mog qab zib, khoom qab zib, khoom kib, biscuits, mis hmoov, ntsev, tshuaj yej, thiab lwm yam;
B. Fiber ntim: tsho, khaub ncaws, koob paj rwb khoom, tshuaj fiber ntau khoom;
C. Ntim cov khoom siv tshuaj txhua hnub.
(2) Lub hom phiaj ntawm lub hnab yas tsis tshua muaj siab polyethylene:
A. Lub hnab khib nyiab thiab lub hnab lim;
B. Lub hnab ntim khoom yooj yim, lub hnab ntim khoom, hnab tes, hnab tsho khuam;
C. Lub hnab ntim khoom tshiab;
D. Woven hnab sab hauv
(3) Daim ntawv thov ntawm polypropylene hnab yas: feem ntau yog siv rau ntim textiles, koob paj rwb khoom, khaub ncaws, tsho, thiab lwm yam.
(4) Siv cov hnab yas PVC: A. hnab khoom plig; B. Lub hnab ntim khoom, koob paj rwb khoom ntim hnab, hnab ntim tshuaj pleev ib ce;

C. (zipper) cov ntaub ntawv hnab thiab cov ntaub ntawv hnab.

2.Kev sib xyaw ntawm cov yas

Cov yas peb feem ntau siv tsis yog cov khoom ntshiab. Nws yog ua los ntawm ntau yam ntaub ntawv. Ntawm lawv, siab molecular polymer (los yog hluavtaws cob) yog lub ntsiab ntawm cov yas. Tsis tas li ntawd, txhawm rau txhim kho kev ua tau zoo ntawm cov yas, nws yog ib qho tsim nyog yuav tsum tau ntxiv ntau yam khoom siv, xws li muab tub lim, plasticizers, lubricants, stabilizers thiab colorants, thiaj li ua tau plastics nrog kev ua tau zoo.

1. Synthetic resin
Synthetic resin yog cov khoom tseem ceeb ntawm cov yas, thiab nws cov ntsiab lus hauv plastics feem ntau yog 40% ~ 100%. Vim hais tias ntawm nws cov ntsiab lus siab thiab qhov xwm ntawm cov resin feem ntau txiav txim siab qhov xwm ntawm plastics, tib neeg feem ntau suav hais tias resin yog ib lub ntsiab lus ntawm plastics. Piv txwv li, PVC resin thiab PVC yas, phenolic resin thiab phenolic yas tsis meej pem. Qhov tseeb, resin thiab yas yog ob lub ntsiab lus sib txawv. Resin yog ib qho tsis tau ua tiav thawj polymer. Nws tsis yog tsuas yog siv los ua cov yas, tab sis kuj yog siv los ua cov khoom siv raw rau txheej, nplaum thiab hluavtaws fibers. Ntxiv rau ib feem me me ntawm cov yas uas muaj 100% resin, feem ntau ntawm cov yas yuav tsum tau ntxiv lwm yam khoom ntxiv rau cov khoom tseem ceeb.

2. Filler
Fillers, tseem hu ua fillers, tuaj yeem txhim kho lub zog thiab kub tsis kam ntawm cov yas thiab txo cov nqi. Piv txwv li, qhov sib ntxiv ntawm cov hmoov ntoo rau phenolic resin tuaj yeem txo tus nqi zoo heev, ua phenolic yas yog ib qho ntawm cov yas pheej yig tshaj plaws, thiab txhim kho cov neeg kho tshuab lub zog. Fillers tuaj yeem muab faib ua cov organic fillers thiab inorganic fillers, cov qub xws li ntoo hmoov, rags, ntawv thiab ntau yam ntaub fibers, thiab tom kawg xws li iav fiber, diatomite, asbestos, carbon dub, thiab lwm yam.

3. Plasticizer
Plasticizers tuaj yeem ua kom cov yas thiab softness ntawm cov yas, txo cov brittleness thiab ua kom cov yas yooj yim rau kev ua thiab cov duab. Plasticizers feem ntau yog kub boiling organic tebchaw uas yog miscible nrog resin, non-toxic, tsw thiab ruaj khov rau lub teeb thiab kub. Phthalates feem ntau yog siv. Piv txwv li, hauv kev tsim cov yas PVC, yog tias muaj cov yas ntxiv ntxiv, cov yas mos PVC tuaj yeem tau. Yog tias tsis muaj los yog tsawg dua cov yas yas ntxiv (ntau npaum li cas <10%), cov yas PVC tawv tuaj yeem tau.

4. Stabilizer
Txhawm rau tiv thaiv cov khoom siv hluavtaws los ntawm kev decomposed thiab puas los ntawm lub teeb thiab cua sov hauv cov txheej txheem ntawm kev ua thiab siv, thiab ua kom lub neej ua haujlwm ntev, lub stabilizer yuav tsum tau ntxiv rau cov yas. Feem ntau siv yog stearate, epoxy resin, thiab lwm yam.

5. Xim xim
Colorants tuaj yeem ua cov yas muaj ntau yam xim ci thiab zoo nkauj. Organic dyes thiab inorganic pigments feem ntau yog siv los ua cov xim.

6. Lubricant
Lub luag haujlwm ntawm lubricant yog los tiv thaiv cov yas los ntawm kev ua raws li cov hlau pwm thaum lub sij hawm molding, thiab ua kom cov yas nto du thiab zoo nkauj. Cov roj nplua nyeem muaj xws li stearic acid thiab nws cov calcium magnesium ntsev.

Ntxiv nrog rau cov khoom siv saum toj no, cov nplaim hluav taws kub, cov tshuaj ua npuas dej thiab cov tshuaj tiv thaiv kab mob kuj tuaj yeem muab ntxiv rau cov yas kom tau raws li cov ntawv thov sib txawv.

Hnav khaub ncaws hnab ua tshuab

Lub hnab ris tsho yog hais txog lub hnab ua los ntawm OPP zaj duab xis lossis PE, PP thiab CPP zaj duab xis, tsis muaj cov nplaum nplaum ntawm qhov nkag thiab kaw rau ob sab.

Lub hom phiaj:

Peb feem ntau yog siv los ntim cov khaub ncaws lub caij ntuj sov, xws li lub tsho, tiab, ris tsho, buns, phuam da dej, khob cij thiab hnab nyiaj. Feem ntau, hom hnab no muaj nws tus kheej-nplaum rau nws, uas tuaj yeem raug kaw ncaj qha tom qab thauj khoom rau hauv cov khoom. Hauv kev ua lag luam hauv tsev, hom hnab no yog nrov heev thiab siv dav. Vim nws cov pob tshab zoo, nws kuj yog qhov kev xaiv zoo tshaj plaws rau kev ntim khoom plig.