Musiyano pakati pePLA neCPLA

PLA ipfupi yePolylactic acid kana polylactide.
Irudzi rutsva rwezvinhu zvinoodza, izvo zvinobva kune zvinogonesa kugadzirwa sitachi, sechibage, mufarinya nezvimwe zvirimwa.Inoviriswa uye inotorwa nema microorganisms kuti iwane lactic acid, uye yobva yanatswa, yakapera mvura, yakanatswa, oligomerized, pyrolyzed, uye polymerized.

Zvigadzirwa zvePLA zvinogona kuderedzwa zvachose nehutachiona muvhu mukati memwedzi gumi nemiviri mushure mekuraswa, kugadzira CO2 nemvura, uye pasina kusvibiswa kune zvakatipoteredza.PLA mbishi zvinhu zvinoshandiswa zvakanyanya mukugadzira zvinhu zvekurongedza, zvinoraswa tableware, magomba emidziyo, fiber, 3D zvinodyiwa, nezvimwe.

Sezvo PLA ichitorwa kubva kune zvinogonekazve chirimwa zviwanikwa, pane petroleum-yakavakirwa echinyakare mapurasitiki, inogona zvechokwadi kuwana kuchengetedza kwesimba uye kuchengetedzwa kwezvakatipoteredza, uye inoonekwa seyakavimbisa nyowani "ecological material".

PLA's Molecular formula: (C3H4O2)n
PLA's Density: 1.21 kusvika 1.43 g/cm³
PLA's Melting point: 175 kusvika 178 ℃
PLA's Mvura solubility: isingagadzirike

PLA's Physical properties
Density: 1.20-1.30 kg/L
Kunyungudika: 155-185°C,
Intrinsic viscosity IV: 0.2-8 dL/g
Girazi shanduko tembiricha: 60-65°C,
Kutamisa kupisa kwepakati: 0.025 λ(w/m*k)

PLA's Mechanical Properties
Kusimba kwesimba: 40-60 MPa
Elongation panguva yekuzorora: 4% -10%
Modulus ye elasticity: 3000-4000 MPa
Flexural modulus: 100-150 MPa
Izod kukanganisa simba (isina kunyorwa): 150-300 J/m
Izod kukanganisa simba (notched): 20-60 J/m
Rockwell kuoma: 88

image1

SPI Chiratidzo chePLA
Sosaiti yePlastiki Indasitiri (SPI) inotaura kuti kodhi yedhijitari yepolylactic acid ndeye "7".Belgium yatanga kushandisa recycled polylactic acid senyika yekutyaira.Kudzokororwa kwepolylactic acid hakuna kufanana nemamwe mapolymers.Iyo tsvina polylactic acid epurasitiki ichaunganidzwa mumudziyo unokosha, yakasvibiswa kuva mamorekuru maduku monomers kuburikidza nepyrolysis, hydrolysis nedzimwe nzira, uye ipapo monomer ichashandurwa nemugadziri.Lactic acid inogadzirwa kuita polylactic acid raw material ine zvimwe zvivakwa, iyo inozoshandiswa zvakare mumusika.

image2

Chii chinonzi CPLA uye TPLA?
CPLA iCrystallized PLA, inogadzirwa kune yakakwira kupisa zvigadzirwa.
Sezvo PLA iine nzvimbo yakaderera yekunyungudika, saka zvakanakira kushandiswa kutonhora kusvika ku40ºC kana 105ºF.Nepo kuwedzera kupisa kuri kudiwa senge mukucheka, kana mavharo ekofi kana muto, tobva tashandisa Crystallized PolyLactic Acid ine zvimwe zvinoomesa biodegradable additives.Saka tinowana zvigadzirwa zveCPLA zvine yakakwirira-yekudzivirira kupisa kusvika ku80ºC kana 176ºF.
Inogadziriswa nekuisa kumanikidza kwakanyanya uye kupisa kuPLA, choko, uye zvimwe zvinoora uye bio-based additives.Izvi zvinoita kuti zvinhu zvinyanye kupenya, zvichikonzera chigadzirwa chakaomarara chisingatapurwe nekudzikira kwekupisa.CPLA lids inowanzoshandiswa kugadzira soup ndiro uye makofi ekofi.

TPLA zvinoreva Talc-yakawedzerwa PLA.
Talc imhando yemaminerari echisikigo anobatsira PLA kuumbwa kuita zvinhu zvakaomarara.Kazhinji, zvinhu zviviri izvi zvakabatanidzwa pachiyero chakakomberedza 70% PLA uye 30% talc.
Ose CPLA neTPLA anogona compostable muindasitiri composting nzvimbo, uye kazhinji, zvinotora 3 kusvika 6 mwedzi kuti TPLA iite manyowa, nepo 2 kusvika 4 mwedzi yeCPLA.
Ose maviri PLA neCPLA anogadzirwa zvakachengetedzeka uye 100% biodegradable uye compostable.


Nguva yekutumira: Feb-12-2022