2021-04
Txhawm rau ua kev zoo siab rau Hnub Ua Haujlwm yuav los, hnub no peb tau tuav lub rooj sib tham qhuas txog kev ua haujlwm, txhawm rau, lees paub cov neeg ua haujlwm zoo thiab pab pawg hauv 2020. Ua ntej tshaj plaws, Peb Tus Thawj Kav Tebchaws qhov chaw nyob.In 2020, peb tau siv xyoo tshwj xeeb, ua tsaug rau peb txhua tus neeg ua haujlwm h...
2021-04
Nyob rau lub Ib Hlis 2020, lub teb chaws txoj kev loj hlob thiab Reform Commission thiab Ministry of ecological ib puag ncig koom ua ke tshaj tawm "cov kev xav rau ntxiv dag zog rau kev tswj ntawm cov pa phem", uas yuav tsum tau hais tias nyob rau hauv lub kawg ntawm 2020, cov khoom, sal ...
2021-04
Polylactic acid (PLA) yog ib yam khoom tshiab uas yog tsim los ntawm cov polymerization ntxiv ntawm lactic acid los ntawm cov hmoov txhuv nplej siab los yog qab zib fermentation. Nws tsis siv roj av ua raw khoom, thiab muaj cov yam ntxwv ntawm kev tiv thaiv ib puag ncig, tsis muaj tshuaj lom ...
2021-04
Muaj ntau ntau hom non-woven fabrics nyob rau hauv kev ua lag luam. Koj puas tuaj yeem txheeb xyuas lawv tiag tiag?Cia peb kawm ua ke.Cov ntaub tsis yog ntaub yog tsim los ntawm polypropylene (PP) thiab polyester (PET). Tsis tas li ntawd, muaj nylon (PA), viscose fiber, acrylic fiber, p ...
2021-04
Tus neeg sau xov xwm pom hauv lub tsev loj loj hauv Beijing tias cov hnab yas degradable tau muag ntawm no. Cov hnab yas no yog ua los ntawm cov hmoov txhuv nplej siab thiab biodegradable resin, uas tuaj yeem degraded rau hauv dej thiab carbon dioxide hauv 180 mus rau 360 hnub. Tam sim no, lub ...
2021-03
Qhov ncauj qhov ntswg tseem yog ib yam khoom tseem ceeb rau cov pej xeem mus ncig. Feem ntau ntawm cov ntaub ntawv siv hauv kev tsim cov qhov ncauj qhov ntswg pov tseg nyob rau hauv kev ua lag luam tsis yog degradable kiag li. Qhov laj thawj tseem ceeb yog tias cov khoom tseem ceeb meltblown tsis tuaj yeem ua tiav ...
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