Yas degradation yog hais txog qhov kawg ntawm lub neej voj voog ntawm siab -molecular- hnyav polymers, nrog rau qhov hnyav ntawm molecular, ua rau cov yas ua nkig, tawg, softening, hardening, poob txhua yam muaj zog, thiab lwm yam. Kev degradation ntawm cov hnab yas zoo tib yam feem ntau siv sijhawm ntau xyoo lossis ntau pua xyoo. Cov hnab yas uas tsis tuaj yeem muab pov tseg los ntawm qhov chaw pov tseg lossis kev ua kom tsis zoo tuaj yeem ua rau ib puag ncig. Txhawm rau tiv thaiv ib puag ncig, tsim cov hnab yas degradable.
Cov hnab yas biodegradable xa mus rau cov uas, thaum lub sij hawm tsim khoom, koom nrog qee cov khoom ntxiv (xws li cov hmoov txhuv nplej siab, hloov cov hmoov txhuv nplej siab lossis lwm yam cellulose, photosensitizers,
biodegradable agents, thiab lwm yam), txo lawv cov stability thiab ua rau lawv yooj yim rau degradation nyob rau hauv ib puag ncig ntuj.
Dab tsi ntawm cov hnab yas degradable muaj?
1. Photodegradation ntawm cov hnab yas
Ntxiv cov tshuaj photosensitive rau cov yas ua rau nws maj mam decompose nyob rau hauv tshav ntuj. Nws belongs rau ib tiam dhau los ntawm degradable plastics. Nws qhov tsis zoo yog tias lub sijhawm degradation yog qhov nyuaj rau kwv yees vim lub hnub ci thiab kev hloov pauv huab cua, thiab yog li lub sijhawm degradation tsis tuaj yeem tswj tau.
2. Biodegradable hnab yas
Cov yas uas tuaj yeem decomposed tag nrho rau hauv qis- cov tshuaj molecular nyob rau hauv kev ua ntawm cov kab mob. Nws cov yam ntxwv yog yooj yim khaws cia thiab kev thauj mus los. Tsuav nws qhuav qhuav, nws tsis tas yuav tiv thaiv lub teeb. Nws muaj ntau yam kev siv thiab tuaj yeem siv tsis tau tsuas yog hauv cov av ua liaj ua teb thiab cov hnab ntim khoom, tab sis kuj tau siv dav hauv kev kho mob. Nrog rau txoj kev loj hlob ntawm niaj hnub biotechnology, biodegradable plastics tau txais kev saib xyuas thiab tau dhau los ua kev tshawb fawb tshiab thiab kev loj hlob hotspot.
3. Kev tsim cov hnab yas ua los ntawm cov khoom siv lub teeb / Biodegradable
Ib hom yas uas ua ke nrog photodegradation thiab microbial degradation, nws muaj cov yam ntxwv ntawm ob qho tib si photodegradable thiab microbial-degradable plastics.
4. Dej-lub hnab yas degradable
Ntxiv cov khoom hygroscopic rau cov yas, lawv tuaj yeem yaj hauv dej tom qab siv. Qhov no tsuas yog siv rau hauv cov khoom siv kho mob thiab tu cev (xws li hnab looj tes kho mob), ua kom yooj yim rau kev pov tseg thiab tshuaj tua kab mob.
Yuav ua li cas txheeb xyuas cov hnab yas degradable
1. Kos npe ntawm cov khib nyiab degradable
Lub hnab yas biodegradable dais ib lub koom haum Suav ib puag ncig logo, uas yog lub cim ntsuab muaj xws li roob, dej, lub hnub thiab kaum lub nplhaib. Yog tias nws yog lub hnab yas rau zaub mov, nws yuav tsum tau cim nrog QS zaub mov kev nyab xeeb daim ntawv tso cai logo thiab sau tias "Rau Khoom Siv".
2. Lub sijhawm khaws cia
Lub txee lub neej ntawm cov hnab yas degradable tsuas yog li peb mus rau plaub lub hlis xwb. Txawm tias lawv tsis siv, lawv yuav pib degrade ib txwm tom qab tsib lub hlis. Txog rau lub hlis thib rau, cov hnab yas yuav npog nrog "snowflakes" thiab yuav tsis siv tau lawm. Nyob rau hauv cov xwm txheej composting, txawm tias cov hnab yas uas tau tsim tawm tshiab tuaj yeem degraded tag nrho hauv peb lub hlis xwb.
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