[Zita rechiLatin] Cinnamomun camphcra

[Chimiro Chekudyara] Inotorwa kubva kuGinkgo Biloba Leaf.

[Zvinodiwa]

1, Ginkgo Biloba Extract 24/6

Yese Ginkgo flavone glycosides 24%

Yese terpene lactones 6%

2, Ginkgo Biloba Extract 24/6

Yese Ginkgo flavone glycosides 24%

Yese terpene lactones 6%

Ginkgolic asidhi 5ppm

3,CP2005

Yese Ginkgo flavone glycosides 24%

Quercatin: kaemperol 0.8-1.5

Yese terpene lactones 6%

Ginkgolic acid

4.Germany Standard

Yese Ginkgo Flavone Glycosides 22.0% -27%

Yese Terpene Lactones 5.0% -7.0%

Bilobalides 2.6% -3.2%

Ginkgolic acid

5.Water-Soluble Ginkgo Biloba Extract 24/6

Kunyungudika kwemvura: 5g Ginkgo Biloba Extract ichanyungudutswa zvachose mu100g mvura.

Yese Ginkgo Flavone Glycosides 24.0%

Yese Terpene Lactones 6.0%

Ginkgolic acid

[Kuonekwa] Chiedza yero yakanaka poda

[Chikamu saizi] 80 Mesh

[Kurasikirwa pakuomeswa] £ 5.0%

[Heavy Metal] £10PPM

[Bvisa zvinonyungudutsa] Ethanol

[Kuchengeta] Chengetedza munzvimbo inotonhorera & yakaoma, chengetedza kure nechiedza chakananga uye kupisa.

[Package] Yakarongedzwa mumapepa-madhiramu uye maviri epurasitiki-mabhegi mukati.

[Basa]

Kuwedzera tsinga yeropa, kuramba kusakwana kweropa uye oksijeni kushomeka, kuwedzera kuyerera kweropa, kuvandudza cerebral arteries uye distal.

kubuda kweropa. Kukurudzira cerebral circulation metabolism, kuvandudza ndangariro basa, kuramba kuora mwoyo, kuramba lipidic overoxidation,

kudzivirira kukuvara kwechiropa.

Mukiriniki, kurapa kukwira kweropa, hyperlipoidemia, coronary heart disease, angina pectoris, arterial sclerosis, cerebral embolism,

senile dementia, primary and periodic dropsy, acute drumming munzeve, epicophosis, zvakasiyana-siyana zvekushanda kwemuviri mukusagadzikana, dzungu.

zvichingoenda zvakadaro.

Dzungu kumeso Mask

Dzungu kumeso Mask kumba

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Chemistry playlist: https://www.youtube.com/playlist?list=PL_hX5wLdhf_KyuOalV6rwHjo810Zaa6xq

zvimwe pa https://scitech.quickfound.net/

Mhedziso yekuti mapurasitiki & ekugadzira rubber anogadzirwa sei.

Kurodhazve firimu rakambokwidzwa nevhidhiyo yakagadziridzwa & ruzha.

Public domain firimu kubva kuLibhurari yeCongress Prelinger Archives, yakadzvanywa zvishoma kuti ibvise mipendero isina kuenzana, nechiyero chechikamu chakagadziriswa, uye imwe-pass kupenya-kusiyanisa-ruvara kururamisa & yakapfava vhidhiyo kuderedza ruzha yakashandiswa.
Mutsindo wacho wakagadziridzwawo nevhoriyamu normalization, kudzikisa ruzha, kuderedza kudonhedza, uye / kana kuenzana (iyo inobuda ruzha, kunyangwe isina kukwana, ine ruzha rushoma pane yekutanga).

https://creativecommons.org/licenses/by-sa/3.0/

https://en.wikipedia.org/wiki/Polymer

A polymer imorekuru hombe (macromolecule) inoumbwa nekudzokorora zvikamu zvezvimiro. Aya ma sub-units anowanzo kubatanidzwa necovalent kemikari zvisungo. Kunyangwe izwi rekuti polymer dzimwe nguva richitorwa kureva mapurasitiki, rinonyatso batanidza kirasi hombe yemakomponi anosanganisira ese echisikigo uye ekugadzira zvinhu ane akasiyana siyana ezvivakwa.

Nekuda kweiyo inoshamisa huwandu hwezvivakwa zvepolymeric zvinhu, ivo vanotamba yakakosha uye yakajairika basa muhupenyu hwezuva nezuva. Iri basa rinotangira kubva kuanozivikanwa ekugadzira mapurasitiki uye elastomers kune echisikigo biopolymers senge nucleic acids uye mapuroteni akakosha kuhupenyu.

Natural polymeric zvinhu zvakaita seshellac, amber, makushe, sirika uye rabha rechisikigo zvakashandiswa kwemazana emakore. Mamwe akasiyana emamwe mapolymer echisikigo aripo, senge cellulose, inova ndiyo huru inoumba huni nemapepa. Rondedzero yemapolymers ekugadzira anosanganisira synthetic rabha, Bakelite, neoprene, naironi, PVC, polystyrene, polyethylene, polypropylene, polyacrylonitrile, PVB, silicone, uye zvimwe zvakawanda.

Kazhinji kazhinji, iyo inoramba yakabatana musana wepolymer inoshandiswa kugadzira mapurasitiki inosanganisira kunyanya kabhoni maatomu. Muenzaniso wakapfava ndeye polyethylene ('polythene' muBritish English), iyo inodzokorodza unit inobva pa ethylene monomer. Zvisinei, zvimwe zvimiro zviripo; semuenzaniso, zvinhu zvakaita sesilicon zvinoumba zvinhu zvakajairika senge silicones, mienzaniso iri Silly Putty uye isina mvura yepombi sealant. Oxygen inowanikwawo mu polymer backbones, yakadai seye polyethylene glycol, polysaccharides (mu glycosidic bonds), uye DNA (mu phosphodiester bonds).

Mapolymers anodzidzwa muminda yepolymer chemistry, polymer fizikisi, uye polymer sainzi…

Polymerization inzira yekubatanidza akawanda mamorekuru madiki anozivikanwa semamonomers mune yakabatana yakasungwa cheni kana network. Munguva ye polymerization maitiro, mamwe mapoka emakemikari anogona kurasika kubva kune imwe neimwe monomer. Iyi ndiyo nyaya, semuenzaniso, mune polymerization yePET polyester. Iwo monomers ari terephthalic acid (HOOC-C6H4-COOH) uye ethylene glycol (HO-CH2-CH2-OH) asi iyo inodzokorora unit ndeye -OC-C6H4-COO-CH2-CH2-O-, iyo inoenderana nekubatanidzwa kweiyo maviri monomers nekurasikirwa kwemamorekuru maviri emvura. Iyo yakasarudzika chidimbu chemonomer yega yega iyo inosanganisirwa mupolymer inozivikanwa seyekudzokorora unit kana monomer yasara…

https://en.wikipedia.org/wiki/Synthetic_rubber

Synthetic rubber imhando ipi zvayo yeartificial elastomer, inogara iri polima. Elastomer chinhu chine mechanical (kana zvinhu) midziyo iyo inogona kuita zvakanyanya elastic deformation pasi pekunetseka kupfuura zvinhu zvakawanda uye ichiri kudzokera kuhukuru hwayo hwekare pasina deformation yekusingaperi. Makirogiramu bhiriyoni gumi nemashanu emarabha anogadzirwa gore rega, uye kubva ipapo. mari yezvikamu zviviri muzvitatu ndeyekugadzira…

Natural vs synthetic rubber

Rabha rechisikigo, rinobva ku latex, rinenge riri poly-cis-isoprene rine zvisaririra zvetsvina. Kunyangwe ichiratidzira zvinhu zvakawanda zvakanakisa, rabha rechisikigo rinowanzove rakaderera kune ekugadzira rubber, kunyanya maererano nekugadzikana kwayo kwekupisa uye kuenderana kwayo nemafuta epetroleum.

Synthetic rubber inogadzirwa nekupolymerization kweakasiyana petroleum-based precursors anonzi monomers. Iyo yakanyanya kupararira yekugadzira rubbers ndeye styrene-butadiene rubbers (SBR) yakabva kune copolymerization ye styrene uye 1,3-butadiene. Mamwe marabha ekugadzira anogadzirwa kubva kune isoprene (2-methyl-1,3-butadiene), chloroprene (2-chloro-1,3-butadiene), uye isobutylene (methylpropene) ine chikamu chidiki cheisoprene yekuyambuka-yakabatana. Aya uye mamwe mamonomers anogona kusanganiswa muzvikamu zvakasiyana kuti zviitwe copolymerized kugadzira zvigadzirwa zvine huwandu hwemuviri, mechaniki, uye makemikari zvimiro. Iwo monomers anogona kugadzirwa akachena uye kuwedzera kwetsvina kana zvekuwedzera zvinogona kudzorwa nedhizaini kuti ipe yakakwana zvivakwa. Polymerization yeakachena monomers inogona kudzorwa zvirinani kuti ipe chikamu chinodiwa checis uye trans maviri mabhondi…