Biodegradable yas
Biodegradable yas hais txog cov chav kawm ntawm cov yas uas tau ua xeb los ntawm kev ua ntawm cov kab mob me me xws li cov kab mob, cov pwm (fungi) thiab algae uas muaj nyob rau hauv cov xwm. Cov yas zoo nkauj biodegradable yog ib hom khoom siv high-molecular nrog kev ua tau zoo, uas tuaj yeem raug rhuav tshem los ntawm ib puag ncig cov kab mob me me tom qab tau muab pov tseg, thiab thaum kawg inorganicized los ua ib feem ntawm cov pa roj carbon puag ncig." Ntawv" yog cov khoom siv sib xyaw biodegradable, thaum" hluavtaws yas" yog cov khoom siv raug polymer. Yog li ntawd, biodegradable plastics yog cov ntaub ntawv polymer uas muaj cov yam ntxwv ntawm ob daim ntawv thiab hluavtaws plastics.
Suav lub npe Biodegradable yas Txawv Teb Chaws lub npe Biodegradable plastics Classification Ua tiav thiab rhuav tshem cov kab mob loj muaj xws li PBAT, PLA, thiab lwm yam Cov ntsiab lus tseem ceeb Ntuj polymer, aliphatic polyester, etc. Cov yam ntxwv zoo degradability
txheej txheem
1 Cov Lus Txhais
2 Daim Ntawv Thov
3 pawg
4 Keeb Kwm Kev Tsim Kho
5 Kev Khw Raws Li Cas
6 Lwm yam teeb meem muaj feem xyuam
7 Kev ntsuas tshwj xeeb
txhais tau
Biodegradable plastics tuaj yeem muab faib ua ob hom: tag nrho biodegradable plastics thiab puas biodegradable plastics. Kev puas tsuaj biodegradable plastics tam sim no feem ntau suav nrog cov hmoov txhuv nplej siab hloov (lossis puv) polyethylene PE, polypropylene PP, polyvinyl chloride PVC, polystyrene PS, thiab lwm yam.
Tiav biodegradable plastics yog mas ua los ntawm ntuj polymers (xws li cov hmoov txhuv nplej siab, cellulose, chitin) los yog cov khoom siv ua liaj ua teb thiab sideline los ntawm microbial fermentation lossis synthesis ntawm biodegradable polymers, xws li thermoplastic hmoov txhuv nplej ua kua, aliphatic polyesters, polylactic acid, Starch / polyvinyl cawv, thiab lwm yam. . rau qhov hom yas.
Biodegradable plastics raws cov khoom siv ntuj tsim xws li cov hmoov txhuv nplej siab muaj xws li cov khoom lag luam hauv qab no: polylactic acid (PLA), polyhydroxyalkanoate (PHA), plastics plastics, bioengineering plastics, plhom-generic plastics (polyolefins thiab polyvinyl chloride) Ethylene) [1].
Hmoov txhuv raws li biodegradable yas
Hmoov txhuv raws li biodegradable yas
daim ntawv thov
Biodegradable plastics yog tsuas yog siv ua khoom noj khoom haus muag muag thiab tawv ntim khoom ntim vim lawv qhov kev puas tsuaj zoo, uas tseem yog lawv qhov chaw thov loj tshaj plaws nyob rau theem no.
Cov hom lag luam tseem ceeb rau biodegradable plastics yog cov yas ntim ntim zaj duab xis, zaj duab xis ua liaj ua teb, cov hnab yas pov tseg thiab cov hnab yas siv pov tseg. Piv nrog cov ntaub ntawv qub ntim cov yas, cov nqi ntawm cov khoom siv tshiab kev cuam tshuam yog me ntsis siab dua. Txawm li cas los xij, nrog kev paub ntau ntxiv ntawm kev tiv thaiv ib puag ncig, tib neeg kam siv tus nqi me ntsis ntawm cov khoom siv tshiab kev xiam oob qhab kom tiv thaiv ib puag ncig. Cov kev paub txog ib puag ncig ib puag ncig tau coj cov kev loj hlob zoo rau biodegradable tshiab cov ntaub ntawv kev lag luam. Nrog rau kev txhim kho Tuam Tshoj' s kev lag luam, kev ua tiav muaj kev vam meej ntawm ntau yam kev ua yeeb yam xws li Olympic Games thiab World Expo, thiab xav tau kev tiv thaiv ntawm ntau yam ntiaj teb cov cuab yeej cuab tam thiab cov chaw zoo nkauj hauv teb chaws, kev ua qias tuaj ib puag ncig. tshwm sim los ntawm plastics tau los ua cov tseem ceeb dua tuaj. Kho cov pa phem dawb ua ib qho ntawm cov haujlwm tseem ceeb.
Cov teb chaws tsim thiab thaj chaw nyob hauv Tebchaws Europe, Tebchaws Asmeskas, Nyij Pooj thiab lwm lub tebchaws tau tsim thiab qhia cov kev cai uas tsim nyog, txwv tsis pub siv cov yas uas tsis muaj qhov puas tsuaj los ntawm kev ntsuas xws li qee qhov kev txwv, kev txwv, txoj cai yuav tsum sau thiab sau se ntawm cov pa phem, thiab siv zog txhim kho cov khoom siv tshiab tshiab kom tiv thaiv ib puag ncig. 2. Tiv thaiv cov av. Ntawm lawv, Fabkis tau tshaj tawm txoj cai tswjfwm xyoo 2005 uas tau sau tseg tias txhua lub hnab yas pov tseg yuav tsum tau hloov kho tom qab xyoo 2010.
Nyob rau tib lub sijhawm, Tuam Tshoj tseem tau tshaj tawm ntau txoj cai tswjfwm rau kev thov thiab txhawb kev lag luam biodegradable plastics. Thaum xyoo 2004, National People' s Congress tau tshaj tawm Txoj Cai Kev Rov Txuas Zog Zog (Cua Daj) thiab Txoj Cai Kev Ua Haujlwm Pov Tseg (Kev Hloov Kho) los txhawb kom siv cov kev siv hluav taws xob txuas ntxiv mus thiab kev txhawb nqa thiab daim ntawv thov ntawm cov roj av qog. Xyoo 2005, Lub Teb Chaws Kev Tsim Kho thiab Hloov Tebchaws Txoj Cai No. 40 qhia meej meej Txhawb kom siv thiab txhawb nqa ntawm biodegradable plastics; Hauv xyoo 2006, Lub Tebchaws Kev Tsim Kho thiab Hloov Tebchaws Ua Haujlwm tau pib ua haujlwm tshwj xeeb nyiaj txiag los txhawb kev txhim kho ntawm cov khoom siv biode biode los ua ke; qhov" Cov Lus Txhais, Kev Tshawb Fawb, Kev Sau Npe thiab Kev Tshawb Xyuas Txhaum Cai Yuav Tsum Tau Ua Txhaum Tau Phiaj Los Nqis" ua tiav thaum Lub Ib Hlis 1, 2007 tau Txais Kev sib nrig sib lees ntawm lub teb chaws xws li Tebchaws Europe, Tebchaws Asmeskas thiab Nyij Pooj tau txhawb kev xa khoom ntawm Suav cov khoom.
kev faib tawm
Qeb los ntawm cov khoom siv raw, muaj tsawg kawg ib hom biodegradable plastics:
Polycaprolactone (PCL)
Cov yas no muaj biodegradability zoo thiab muaj qhov chaw muaj qhov cim tseg ntawm 62 ° C. Cov kab mob me me uas tawg nws tawg tau muab faib thoob plaws hauv qab aerobic lossis anaerobic. Raws li cov khoom siv biodegradable, nws tuaj yeem tov nrog cov hmoov txhuv nplej siab thiab cellulose cov ntaub ntawv lossis polymerized nrog lactic acid.
Polybutylene succinate (PBS) thiab nws cov copolymer
Lub thev naus laus zis ntawm ntau cov txheej txheem molecular hnyav polyesters raws li PBS (melting point ntawm 114 ° C) tau mus txog theem ntawm kev lag luam kev lag luam. Nyiv' s Mitsubishi Tshuaj thiab Showa Polymer Corporation tau pib kev lag luam kev lag luam nrog teev ntawm txog 1,000 tons.
Lub koom haum ntawm Physics thiab Chemistry ntawm Suav Academy ntawm Kev Tshawb Fawb kuj tseem ua kev tshawb fawb ntawm cov hluavtaws polybutylene succinate copolyester. Lub koom haum ntawm Physics thiab Chemistry ntawm Suav Academy ntawm Kev Tshawb Fawb tau koom tes nrog Shandong Huiying Lub Tuam Txhab los tsim cov kab ntau lawm nrog cov txiaj ntsig txhua xyoo ntawm 25,000 tons ntawm PBS thiab nws cov polymers, thiab tuam txhab Guangdong Jinfa tau tsim cov kab ntau lawm nrog cov txiaj ntsig txhua xyoo ntawm 1,000 tons. Tsinghua University tau teeb tsa cov khoom lag luam nrog kev tsim tawm txhua xyoo ntawm 10,000 tons ntawm PBS thiab nws cov ntawv luam tawm hauv Anqing Hexing Chemical Co., Ltd.
Polylactic acid (PLA)
Cov haujlwm ua haujlwm hauv Tebchaws Meskas tau ua ib txoj haujlwm zoo thiab muaj txiaj ntsig zoo hauv kev txhim kho cov txheej txheem ntau lawm ntawm polylactic acid. Nws tau tsim fermentation ntawm qabzib los ntawm pob kws los tsim polylactic acid, nrog rau txhua xyoo muaj peev xwm ntau lawm ntawm 14,000 tons. Nyiv' s UNITIKA lub tuam txhab tau tsim thiab tsim ntau yam khoom, ntawm cov uas canvas, tais, tableware, thiab lwm yam tau siv dav hauv Aichi Expo hauv Nyij Pooj.
Tuam Tshoj' s industrialization suav nrog Zhejiang Haisheng Biodegradable Plastics Co., Ltd. (nplai 5000 kilotons / xyoo cov kab ntau lawm), thiab cov chaw sim yog Shanghai Tongjieliang Biomaterials Co., Ltd. thiab Jiangsu Jiuding Group.
Polyhydroxyalkanoate (PHA)
Kev lag luam kev lag luam tawm txawv teb chaws feem ntau yog Asmeskas thiab Brazil. Cov khoom lag luam hauv tsev suav nrog Tianjin Guoyun Biomaterials Co., Ltd. (teev 10,000 tons / xyoo) [2], Ningbo Tianan Biomaterials Co., Ltd. (teev 2,000 tons / xyoo), thiab cov chav nyob sim yog Jiangsu Nantian Group Co., Ltd Tos.
Biodegradable plastics tau los ntawm cov khoom siv txuas dua tshiab, aliphatic polyester thiab cov hmoov txhuv nplej tau sib xyaw ua ke, thiab thev naus laus zis los ua cov yas qias ua kom tiav kuj tau ua tiav kev tshawb nrhiav. Hauv Tebchaws Europe thiab Tebchaws Asmeskas, cov khoom sib txuas ntawm cov hmoov txhuv nplej siab thiab aliphatic polyesters yog dav siv los tsim cov khoom lag luam xws li hnab khib nyiab. Lub ntiaj teb' s lub tuam txhab loj tshaj plaws thiab zoo tshaj plaws yog Ltalis' s Novamont, nws lub npe lag luam yog Mater-bi. Lub tuam txhab' s cov khoom lag luam muaj ntau ntawm cov ntawv thov ntau hauv Tebchaws Europe thiab Tebchaws Asmeskas.
Muaj ntau cov kev tshawb fawb nyob hauv tsev thiab cov chaw tsim khoom, ntawm cov chaw tsim khoom lag luam yog Wuhan Huali Technology Co., Ltd. (teev 40,000 tons / xyoo), Zhejiang Huafa State Technology Co., Ltd. (8,000 tons / xyoo), Zhejiang Tianhe Ecological Tshuab Co., Ltd. (5,000 tons / xyoo), Fujian Beststar Biomaterials Co., Ltd. (teev 2,000 tons / xyoo), Zhaoqing Huafang Degradable Plastics Co., Ltd. (teev 5,000 tons / xyoo), thiab lwm yam.
Aliphatic uas muaj ntxhiab copolyester
Aliphatic aromatic random copolyester (Ecoflex) tsim los ntawm lub tuam txhab German BASF, nws cov monomers yog: adipic acid, terephthalic acid, 1,4-butanediol. Muaj peev xwm ntau lawm yog 140,000 tons / xyoo. Tib lub sijhawm, biodegradable yas khoom raws li polyester thiab hmoov txhuv nplej siab tau tsim.
Polyvinyl cawv (PVA) biodegradable plastics
Piv txwv, MaterBi ntawm Ltalis NOVMANT mas ntxiv PVA rau cov hmoov txhuv nplej siab xyoo 1990. Nws tuaj yeem tshuab zaj duab xis thiab txheej txheem lwm yam khoom. Polyvinyl cawv cov ntaub ntawv yuav tsum tau hloov kho kom muaj biodegradability zoo. Lub koom haum ntawm Lub Teeb Kev Lag Luam Plastics Txheej Txheem thiab Daim Ntawv Thov ntawm Beijing Technology thiab Kev Lag Luam Kev Ua Lag Luam tau ua tiav qee qhov txiaj ntsig hauv qhov no.
Luam dej carbon dioxide copolymer
Cov teb chaws txawv teb chaws, kev kawm ntxov tshaj plaws uas tau kawm txog carbon dioxide copolymer feem ntau yog Nyij Pooj thiab Asmeskas, tab sis tsis muaj kev tsim khoom lag luam. Lub teb chaws puab Tshaj plaws Mengxi Group Co., Ltd. tau saws cov cuab yeej technology ntawm Changchun Lub Koom Haum ntawm Kev Siv Tshuaj thiab tau tsim ib lub cuab yeej nrog cov zis txhua xyoo ntawm 3,000 tons ntawm carbon dioxide / epoxy compound copolymer cob. Cov khoom siv yog siv dav hauv kev ntim khoom thiab cov ntawv kho mob. Lub tshuab nqus cov pa roj carbon monoxide qis dua cov pa roj carbon dioxide copolymer thev naus laus zis tsim los ntawm Dr. Chen Liban ntawm Guangzhou Institute of Chemistry ntawm Suav Academy ntawm Science tau pib ntau lawm hauv Taixing, Jiangsu. Cov hom yog lub cev nyhav uas tsis tshua muaj roj carbon dioxide / epoxy compound copolymer, uas yog siv los ua cov khoom siv raw rau cov khoom ua npuas polyurethane thiab yog siv hauv cov khoom siv hauv tsev. Thiab lwm yam ntim. Kev siv tshuab thev naus laus zis Meng Yuezhong ntawm Sun Yat-sen University, Henan Tianguan Group tau tsim tsa cov qauv carbon dioxide copolymer cov kab ntau lawm.
Lwm yam xws li chitin, polyamide, polyaspartic acid, polysaccharides, thiab cellulose tab tom muaj kev loj hlob.
Poly-β-hydroxybutyrate (PHB)
Los ntawm kev pom thoob ntiaj teb, PHB thiab PHBV raug lees paub tias yog ib qho ntawm kev cog lus tshaj plaws biodegradable plastics, thiab lawv kuj yog cov khoom lag luam tshiab tau tsim. Kev sim cov nqi ntawm cov tog neeg yog txog RMB 40 / kg. Tom qab kev txhim kho kev lag luam, tus nqi ntawm cov khoom lag luam yuav raug txo nqi ntxiv, thiab tus nqi kom zoo dua yog pom tseeb. Tshwj xeeb tshaj yog rooj tog technical' s yooj yim ntau lawm txheej txheem thiab cov khoom siv yooj yim yog yooj yim rau kev nce qib thiab kev lag luam loj.
3000 tons ntawm tag nrho cov biodegradable yas
3000 tons ntawm tag nrho cov biodegradable yas
Keeb kwm kev loj hlob
Raws li Nyiv Biodegradable Plastics Research Association, Nyiv' s biodegradable plastics ntau lawm hauv xyoo 2002 yog txog 10,000 tons, kwv yees li 20,000 tons nyob rau xyoo 2003, kwv yees li 40,000 tons hauv xyoo 2005, thiab xav tias yuav txog txog li 100,000 txog 200,000 tons hauv xyoo 2010 Cov.
Raws li cov ntaub ntawv los ntawm European Bioplastics Association, cov ntaub ntawv los ntawm 2001 qhia tias kev noj haus ntawm cov khoom lag luam biodegradable hauv EU yog 25,000 txog 30,000 tons, thaum noj cov tsoos polymers yog li 35 lab tons. Lub Koom Haum European Bioplastics kwv yees hais tias cov nyiaj ntawm cov tsoos lis dej num yuav nce mus txog 55 lab tons hauv 2010, thaum tus nqi ntawm cov khoom lag luam biodegradable yuav nce mus txog 500,000 txog 1 lab tons. Cov khoom siv biodegradable yuav suav nrog 10% ntawm kev ua lag luam. Hauv cov khoom siv biodegradable, qhov feem ntawm cov khoom siv raw siv cov peev txheej txuas tau dua tshiab yuav suav rau ntau dua 90%.
Raws li kev txheeb cais los ntawm Tuam Tshoj Plastics Association' s Degradable Plastics Professional Committee, tus nqi ntawm cov khoom siv biodegradable hauv Suav teb xyoo 2003 txog 15,000 tons, ntawm uas kwv yees li 1,000 tons yog biodegradable polymers tsis muaj hmoov txhuv nplej siab. Nyob rau xyoo 2005, muaj txog 30 lub tuam txhab koom nrog biodegradable plastics, nrog cov peev txheej tsim ntau txog 60,000 tons / xyoo, kev tsim khoom tiag tiag txog 30,000 tons, kev ua lag luam hauv kev thov txog li 50,000 tons, kev lag luam txawv teb chaws tshaj 10,000 tons, thiab kev xa tawm ntawm 20,000 tons. Nws xav tias qhov peev xwm ntau lawm nyob rau xyoo 2010 yuav muaj txog 250,000 tons. Txog cov ntsiab lus, thov xa mus rau" Foreseeing Tuam Tshoj' s Biodegradable Plastics Kev Lag Luam Hauv Kev Tshawb Nrhiav Kev Tshawb Nrhiav thiab Kev Lag Luam Tswv Yim Npaj Txheeb Xyuas Daim Ntawv Qhia" ;.
Qee lub tebchaws tsim tseem siv lub tswv yim ntawm kev lag luam puag ncig kom siv cov khoom siv uas siv pov tseg, xws li Sweden' s kev sim cov qos thiab pob kws pov tseg cov khoom noj txom ncauj hauv lub xyoo 1980s, thiab Kaus Lim Qab Teb tau tso cai siv cov tshuaj txhuam hniav ua los ntawm cov nplaum. txhuv. Tos. Hauv Tebchaws Europe, tus txheej txheem EN13432 rau kev tsim kho cov kab mob ua kom cov plua av ntim tau, "Yuav Tsum Muaj Kev Ntsuas thiab Kev Ntsuam Xyuas Thaum Kawg ntawm Cov Khoom Ntim ntim los tsim kev cog lus los ntawm nplooj lwg thiab Biodegradation rau kev rov ua dua tshiab", thaum lwm cov kab ke los txhawb cov nplooj lwg ntawm cov organic pov tseg tau nquag ua qauv thiab npaj. Tsoomfwv Meskas tau tsim tsa Thawj Tsav Xwm' s Green Chemistry Challenge Award Tshaj Tawm txij li xyoo 1996 los txhawb kev txhim kho hauv kev lag luam biodegradable plastics. Lub xeev New York tau txwv tsis pub siv cov hnab ntim khoom tsis muaj kab rov ua lag luam hauv xyoo 1989, cov chaw tsim khoom lag luam muaj cov khoom lag luam qis, thiab cov pej xeem yuav tsum tau cais cov khoom siv hluav taws xob txuas ntxiv thiab tsis txuas ntxiv, txwv tsis pub nplua 500 duas las.
Lwm lub teb chaws tau siv cov kev ntsuas zoo sib xws: Is Nrias teb tau tsim kev cai lij choj tiv thaiv kev siv hnab ntim hauv kev lag luam mis nyuj; Txoj cai lij choj hauv South Africa tau txwv tsis pub siv cov hnab yas ntim khoom. Nrog rau kev txhim kho ntawm cov kev cai hauv tebchaws, cov khoom siv ntim tshiab ntawm biodegradable yuav tsum dhau los ua neeg nyiam.
Hauv Suav teb, nrog kev nkag siab tob tob ntawm kev txo qis ntawm cov plastics, peb tau paub tag nrho cov tswv yim lub luag haujlwm ntawm cov khoom siv no thiab nws cov kev lag luam ntawm Tuam Tshoj' s txoj kev txhim kho kom ruaj khov. Cov ntaub ntawv dav dav ntawm biodegradable plastics tau dav xav. Cov neeg Suav tau dhau los ntawm Txoj Cai Txuas Riswable Energy Law (Daim Qauv) thiab Txoj Cai Kev Ua Haujlwm Pov Tseg (Kev Kho Kom Zoo) xyoo 2004, txhawb kom siv cov kev siv hluav taws xob txuas ntxiv thiab kev txhawb nqa thiab siv thiab ua kom zoo ntawm plastics. Hauv National Development thiab Reform Commission' s No. 40 daim ntawv ntawm xyoo 2005, kev siv thiab txhawb nqa biodegradable plastics kuj tau qhia meej meej. Hauv xyoo 2006, Lub Tebchaws Kev Tsim Kho thiab Hloov Kho Kev Ua Haujlwm tau tsim ib qhov haujlwm tshwj xeeb nyiaj txiag hauv kev txhawb nqa kev txhim kho ntawm cov khoom siv biode biode.
qhov xwm txheej hauv khw
Thaum xyoo 2019, kev lag luam tus nqi ntawm kev lag luam biodegradable plastics yuav loj hlob mus rau qhov nruab nrab txhua xyoo kev loj hlob ntawm 13.01% rau $ 3.477 billion. Txij xyoo 2014 txog rau 2019, cov lag luam yas lag luam yas biodegradable yas tau cia siab tias yuav loj hlob ntawm qhov nruab nrab txhua xyoo tau nce ntawm 12%.
Biodegradable plastics tau ushered nyob rau hauv ib lub sijhawm ntawm kev txhim kho sai. Lub tswv yim dhau los ntawm biodegradable plastics tau muab rhaub, tab sis daim ntawv thov tsis tau hnyav rau qhov hnyav.
Biodegradable plastics yog tsuas yog siv hauv kev ntim, fiber ntau, kev ua liaj ua teb, txhaj tshuaj molding thiab lwm cov teb, cov uas siv ntau tshaj plaws hauv kev lag luam ntim, suav txog kwv yees li 60% ntawm tag nrho kev lag luam hauv xyoo 2013, thiab kev thov zaub mov ntim suav tau ntau dua 70 % ntawm biodegradable yas ntim lag luam; Kev txhaj tshuaj molding tshuab kev lag luam yog qhov tseem ceeb tsav rau kev loj hlob hauv kev thov rau biodegradable plastics.
Raws li qhov kawg ntawm xyoo 2013, Tebchaws Europe thiab Tebchaws Asmeskas yog cov kev lag luam tseem ceeb rau plasma biodegradable. Raws li kev txheeb cais, nyob rau hauv 2013, biodegradable plastics nyob rau hauv European thiab North American lag luam suav rau 54% thiab 28% ntawm lub ntiaj teb' s tag nrho, feem.
Pawg Thawj Tswj Haujlwm European' s Pawg Neeg Saib Xyuas ib puag ncig tau pom zoo ib daim qauv los txo cov kev siv cov hnab yas uas siv tas pov tseg. Cov kev tawm tswv yim pom zoo tias 28 lub xeev ntawm EU tau ua raws li ob-kauj ruam los txhim kho kev siv hnab yas kom ua tiav lub hom phiaj ntawm kev txo qis kev siv lub hnab yas ultra-thin los ntawm 80% hauv 2019 piv rau 2010. Qhov kev daws teeb meem no yog xav tias yuav zoo heev txhawb cov kev xav tau ntawm kev lag luam rau biodegradable plastics, thiab xav pom los tsim cov kev loj hlob loj rau cov lag luam cuam tshuam hauv 5 xyoos tom ntej. [3]
Cov lus nug ntsig txog
Txawm li cas los xij, txawm hais tias muaj ntau txoj kev tshawb fawb thiab tshaj tawm txog kev txo qis ntawm cov yas, ntau yam teeb meem tshwj xeeb tsis tuaj yeem daws teeb meem, kev tshaj tawm yog qhov nyuaj, thiab lub zeem muag tsis zoo. Cov laj thawj yog: ib qho yog tias lub hnab yas degradable muaj qhov tsis zoo thauj khoom thiab muaj peev xwm ua tsis tau raws li cov cai ntawm cov neeg yuav khoom thauj khoom ntau dua thiab siv dua; tus lwm yog tias cov hnab yas degradable muaj lub npov daj xim daj thiab tsis tshua muaj pob tshab, uas ua rau tib neeg zoo nkaus li tsis muaj kev huv thiab ugliness. , Tsis txhob txhawj xeeb txog nws; qhov thib peb, tus nqi nyob ntawm qhov chaw siab, vim tias cov tub lag luam tau muab pub dawb, yog li tus nqi nyuaj rau lees txais.
Ib qho piv txwv ntxiv yog daws cov teeb meem paug qias neeg ntawm EPS vas nthiv cov thawv noj su. Sim hloov nws nrog lub thawv ntawv noj su lossis lub thawv noj su yas degradable. Txawm li cas los xij, vim muaj cov hauv qab no, nws nyuaj heev los txhawb: thawj, lub zog siab, lub teeb yuag, thiab zoo thermal rwb thaiv tsev ntawm EPS; qhov thib ob, tus nqi ntawm cov ntawv thawv noj su yog 1.5 txog 2.5 npaug ntawm EPS; qhov thib peb, txawm hais tias degraded PP lub thawv noj su tau siv, lawv qhov kev ua tau zoo tsis zoo Ntawm On EPS. Cov tub ceev xwm Suav xav kom siv cov ntoo cog ua cov tais diav siv uas siv EPS. Txawm li cas los xij, vim kev siv cov thermosols lub cev nyhav-cov hnyav hauv cov txheej txheem molding ntawm xws li cov ntoo fiber ntau cov lus teeb, tseem muaj teeb meem hauv kev tswj thiab tswj cov tshuaj tua kab cov ntsiab lus uas tseem tshuav nyob hauv cov cog fiber ntau cov lus.
Yog li no, tseem tshuav ntev heev los mus tsim thiab tshawb fawb qog cov hnab yas. Kev nthuav dav ntawm kev lag luam yas biodegradable tau ntsib tsib qhov teeb meem loj. Qhov thib ib yog tias kev thev naus laus zis tsis txaus, thiab kev ua tau zoo ntawm cov khoom siv yas tsis zoo tuaj yeem tsis tuaj yeem ua tiav cov neeg xav tau ntau yam. Txawm hais tias muaj ntau ntau yam ntawm biodegradable plastics nyob rau hauv kev ua lag luam, cov neeg kho tshuab thiab kev tsim cov khoom ntawm txhua cov khoom tsuas yog tshwj xeeb hauv ib qho, thiab tseem muaj qee qhov tsis txaus nyob rau hauv kev ua tau zoo. Tam sim no, cov kev tshawb fawb hauv tsev ntawm kev lag luam ntawm cov khoom siv yas tsis zoo yog tseem muaj zog. Feem ntau cov tuam txhab lag luam tsom rau cov khoom coj los ua ke thiab tsis quav ntsej cov khoom ua khoom lag luam thiab kev txhim kho. Qee cov khoom noj thiab dej haus ua los ntawm cov yas biodegradable tiv taus thaum tshav kub, dej thiab tshuab siv. Hais txog lub zog, nws yog deb ntawm cov khoom lag luam yas ua qub.
Qhov teeb meem thib ob yog nqi. Tus nqi ntawm cov khoom lag luam yas biodegradable tseem nyuaj rau kev sib tw nrog cov khoom siv roj av, uas yuav tsum tau txo cov nqi txuas ntxiv thiab cov nqi khoom tsim los ntawm kev nce qib thev naus laus zis.
Thib peb yog qhov tsis muaj cov cai tswjfwm nruj lossis tsis muaj kev cai
peb muab patented puv biodegradable zaj duab xis thiab lub hnab PVA, tag nrho cov khoom yog tsim los ntawm cov cuab yeej siv casting, Nws txawv ntawm cov tshuab moulding khoom, tag nrho cov tshuab moulding khoom tsis puv biodegradable. Peb tuaj yeem tsim pva zaj duab xis thiab hnab hauv pob tshab thiab pob tshab xim. thiab PVA zaj duab xis yog du ntau dua li cov tsoos tshuab moulding khoom.
Peb kuj muab cov khoom siv organic puv ntim biodegradable zaj duab xis thiab hnab ntim nrog cov khoom muaj ntawv pov thawj muaj txheej txheem thiab cov txheej txheem.
Yog xav paub ntxiv PVA zaj duab xis thiab hnab khoom thov mus saib peb:
http://www.joyful-printing.net/pva-bag/
http://www.joyful-printing.com/pva-bag/