Kev faib khoom ntawm cov khoom ntim khoom

Yas

Lub hnab ntim khoom yas yog cov khoom ntim khoom ua los ntawm polyolefin ua cov khoom siv tseem ceeb, thiab lwm yam khoom siv ntxiv kom tsim nyog. Cov polyolefins siv feem ntau yog polyethylene (PE), feem ntau hu ua nplaum nplaum. Cov khoom tseem ceeb muaj xws li polyethylene low-density polyethylene (LDPE), high-density polyethylene los yog low-pressure polyethylene (HDPE), linear low-density polyethylene (LLDPE) thiab metallocene polyethylene (mLLDPE). Txhawm rau txo nws cov nqi, feem ntau cov lag luam ntxiv txog 30 feem pua ​​​​calcium carbonate los ua cov hnab yas ntim khoom ntim khoom yas. Xws li cov hnab yas khw yuav tsis tawm cov pa phem thaum hlawv hauv cov khib nyiab pov tseg. Cov txheej txheem tshiab tshaj tawm hauv lub tebchaws rau cov hnab ntim khoom yas faib cov hnab yas ntim khoom rau hauv peb pawg hauv qab no:

Cov hnab yas ntim khoom zoo tib yam - polyolefin thiab cov khoom ntim khoom siv los ua cov khoom siv raw. Xws li cov hnab yas khw muag khoom tsis muaj kev ua haujlwm degradation thiab yuav tsis degraded txawm tias muab pov tseg rau hauv cov tsiaj qus. Xws li cov hnab yas yuav khoom siv tau zoo heev thiab tuaj yeem siv tau ntau zaus. Cov khoom ntawm cov khoom siv rov ua dua tau txo qis me ntsis, tab sis lawv tuaj yeem siv rau cov khw muag khoom lossis cov hnab khib nyiab nrog cov kev ua haujlwm tsawg thiab cov xim tsis tshua muaj. Qhov teeb meem tseem ceeb yog seb nws puas tuaj yeem rov ua dua.

Starch raws li lub hnab yas khw - hom khoom no siv cov hmoov txhuv nplej siab hloov raws li cov khoom siv tseem ceeb, thiab cov khoom me me ntawm lwm cov khoom siv degradable yog tsim nyog ntxiv los txhim kho nws cov kev ua tau zoo. Lub hnab yas yuav khoom tuaj yeem raug degraded tom qab muab pov tseg rau hauv cov tsiaj qus.

Degradable yas khw hnab - xws li lub hnab yuav khoom yog ua los ntawm cov yas degradable thiab muaj tiav degradability. Cov khoom pov tseg nyob rau hauv lub tshav pob tuaj yeem degraded tag nrho rau hauv cov kab mob me me uas tsis muaj kuab paug ib puag ncig. Xws li cov hnab yas khw muag khoom tau txhawb nqa txawv teb chaws. Raws li qhov tshwj xeeb muaj pes tsawg leeg ntawm tag nrho cov yas degradable, lawv tuaj yeem muab faib ua peb pawg hauv qab no:

(1) PLA thiab PHA biodegradable plastics, uas yog synthesized los ntawm cov hmoov txhuv nplej siab los ntawm cov roj ntsha fermentation, yuav tsum tau noj zaub mov ntau, yog li qhov chaw loj hlob yog txwv.

(2) Cov aliphatic polycarbonate (APC) cov yas degradable tau tsim los ntawm cov pa roj carbon dioxide siv cov pa roj carbon dioxide, cov khoom lag luam uas txhua tus neeg hu rau, ua cov khoom siv raw, uas tsis tsuas yog tsis haus zaub mov, tab sis kuj tuaj yeem txo cov pa roj carbon monoxide thiab tshem tawm. ntiaj teb no ua kom sov los ntawm lub tsev xog paj gases, tua ob tug noog nrog ib lub pob zeb, yog li kev lag luam zeem muag yog dav.

(3) Cov khoom lag luam degradable tag nrho nrog cov tsis muaj hmoov txhuv nplej siab ntxiv rau cov yas zoo tib yam yog nyob rau theem kev lag luam. Yog hais tias cov degradability ntseeg tau, lawv yuav muaj lub neej yav tom ntej.

Non-woven npuag

Cov hnab ntim khoom tsis-woven yog cov ntaub tsis-woven ua los ntawm cov yas. Ntau tus neeg xav tias daim ntaub yog cov khoom siv ntuj tsim. Qhov tseeb, nws yog kev nkag siab yuam kev. Cov khoom siv tsis-woven feem ntau yog polypropylene (PP luv luv, feem ntau hu ua polypropylene fiber) lossis polyethylene terephthalate (PET luv luv, feem ntau hu ua polyester). Tshwj xeeb, PP, zoo li PE rau cov hnab yas yuav khoom, yog rau tsib hom yas, uas tsis tuaj yeem degraded tom qab 50 xyoo ntawm kev siv. Piv txwv li, cov hnab ntim khoom tsis zoo tib yam, uas peb txhua tus hu ua ib puag ncig kev tiv thaiv lub hnab ntim khoom, yog ua los ntawm polypropylene fibers los ntawm cov txheej txheem tshwj xeeb. Hauv cov ntsiab lus, polypropylene (PP) yog ib hom yas thiab tseem yog cov hnab yas. Yog li ntawd, zoo li cov hnab yas khw muag khoom zoo tib yam, nws cov kev tiv thaiv ib puag ncig tsis tuaj yeem ua kom puas tag.

Hais txog kev ua tau zoo ntawm tus nqi tshwj xeeb, lub zog ntawm cov hnab ntim tsis-woven nyob rau hauv tib lub sijhawm tsis zoo li cov hnab yas, thiab lawv tsis muaj dej tsis zoo, thiab lawv cov nqi yog ob peb zaug siab dua li cov hnab yas. Nws yuav tsum tau hais tias nws yog qhov nyuaj dua rau rov ua dua lub hnab ntim khoom uas tsis yog woven ua los ntawm ntau tshaj ob cov ntaub ntawv dua li cov hnab yas khw muag khoom.

Ntawv

Peb txhua tus paub tias lub zog thiab dej tsis kam ntawm daim ntawv tsis zoo. Ntau cov khoom lag luam hauv dej, xws li cov nqaij nruab deg, tsis tuaj yeem ntim tau, thiab cov khoom siv hlau hnyav tsis tuaj yeem nqa qhov hnyav. Ua ntej tshaj plaws, ntoo yog cov khoom siv tseem ceeb rau kev ua ntawv, thiab lub ntiaj teb cov kev pabcuam hav zoov yog qhov tsis tshua muaj, uas yog cov khoom pov tseg loj tshaj plaws ntawm ib puag ncig; Qhov thib ob, cov txheej txheem ntawm kev ua ntawv yuav ua rau muaj kuab paug dej ntau. Cov ntawv zeb thoob plaws lub tebchaws raug ntaus txhua qhov chaw, zoo li nas ntawm txoj kev. Yog li ntawd, siv cov hnab ntawv hauv ntau qhov ntau yog qhov pov tseg loj tshaj plaws ntawm ib puag ncig cov peev txheej thiab cov pa phem tshaj plaws rau ib puag ncig.

Paj rwb thiab flax

Lub zog ntawm paj rwb thiab linen khw hnab yog zoo dua li cov hnab ntawv. Lawv tuaj yeem siv tau ntau zaus, tab sis lawv cov dej tsis kam kuj tseem tsis zoo. Paj rwb thiab linen khw hnab muaj qhov zoo ntawm kev rov ua dua tshiab, tab sis yuav ua li cas yog tias cov hnab ntim khoom qias neeg? Kev ntxuav nrog dej yog txoj kev siv ntau tshaj plaws, tab sis nws nkim cov peev txheej dej. Ntxuav nrog xab npum uas muaj phosphorus yuav ua rau cov av tsis zoo. Tib lub sijhawm, kev ntxhua khaub ncaws tsis tuaj yeem tua cov kab mob.

Pov tseg daim ntawv

1. Rau cov khoom qhuav qhuav, nws raug nquahu kom siv cov khib nyiab Asmeskas lossis European pov tseg, thiab tswj kev tsim cov ntawv hauv paus raws li cov kev qhia ntawm qib A lossis B kraft linerboard. Cov txheej saum npoo tuaj yeem dai cov noodles los yog tsis, nyob ntawm seb puas yuav luam cov qauv nyuaj thiab kev tshaj tawm. Cov ntawv hnyav tuaj yeem yog 135 ~ 150g / m2. nees nkaum tsib × nees nkaum × Lub 15cm ntawv lub hnab tuaj yeem dais 8 ~ 15kg.

2. Rau cov khoom uas yuav tsum tau dais ib tug npaum li cas ntawm noo noo, tag nrho cov ntaub ntawv pov tseg kuj siv tau. Tsuas yog raws li cov qauv saum toj no, ntxiv ib qho nyiaj ntawm tus neeg sawv cev ntub dej 0.5 ~ 1.0 feem pua ​​, thiab lub zog ntub dej tuaj yeem ncav cuag 10 ~ 15 feem pua ​​​​ntawm lub zog qhuav.

3. Rau cov nqaij los yog lwm yam khoom ntub, koj tuaj yeem siv tag nrho cov ntawv pov tseg los ua cov hnab ntim khoom. Qhov no yuav tsum tau ntxiv ntawm ib puag ncig-phooj ywg roj repellent nyob rau hauv lub pulp los yog txheej rau saum npoo thaum lub sij hawm papermaking txheej txheem. Dej soluble lossis degradable resin tuaj yeem txau ob zaug ntawm kraft liner board nrog lub zog zoo.

4. Ntau lub tuam txhab nyob rau hauv Suav teb mainland tau tsim tag nrho cov ntawv khib nyiab sandwich ntawv. Uas yog hais tias, thaum ua ntawv, dej soluble yarn yog ntxiv ntawm ob txheej ntawm loj nyob rau hauv ua ke nrog nrog rau lub hauv paus ntsiab lus ntawm textile. Ib txheej ntawm daim ntawv no tuaj yeem ncav cuag lub zog ntawm plaub txheej ntawm kraft daim ntawv, uas tuaj yeem hloov pauv cov hnab ntawv cement zoo tib yam. Ib yam li ntawd, ib txheej ntawv tuaj yeem siv rau ntawm lub hnab yuav khoom.

5. Cov khoom no muaj kev nyab xeeb thiab ib puag ncig zoo.