Premium PVC Resins SG3, SG5, SG7: Yinginiya atuukira ddala ku nkomerero okuva ku nkomerero okutuuka ku nkomerero y’okugonjoola ebizibu by’amakolero

Enteekateeka ya Molekyulu & Ebintu Ebikwata ku Mubiri

SG3 (Ekigero kya waggulu - Okukyukakyuka) .
Yinginiya nga erina diguli ya polimeeri eya 1300 - 1500 ne K - value ya 70 - 72, grade eno erimu enjegere za molekyu empanvu ezitumbula okukwatibwa kwa pulasitiika. Ensaasaanya yaayo ey’obutundutundu bwa 60 - 250μm ekakasa okusaasaana okwa kimu mu nsengeka z’ebirungo ebigonvu, okusobozesa 25 - 35g ez’okunyiga obuveera buli 100g resin. Ensengekera evuddemu etali ya kifaananyi egaba okuwanvuwa okw’enjawulo mu kumenya, ekigifuula ennungi eri ebintu ebyetaagisa okufukamira enfunda eziwera awatali kwatika.

SG5 (Ebikozesebwa mu ngeri ey’enjawulo Medium - Ekibiina) .
Okugerageranya diguli ya polimeeri eya 1000 - 1100 n’omuwendo gwa K - ogwa 65 - 67, SG5 egaba ekifo eky’omu makkati ekikyukakyuka. Densite yaayo ey’obutundutundu erongooseddwa (0.45 - 0.58g/mL) eyamba okutambula obulungi mu kusaanuuka mu byombi extrusion ne injection molding, ate nga okunyiga pulasitiizi okw’ekigero (20 - 28g/100g) kusobozesa okukyusa okuva ku semi - rigid cable sheaths okudda ku low - flexibility profiles. Obutereevu bw’olujegere lwa molekyu bukendeeza ku bulema mu kukola, okukakasa obuwanvu bw’ekisenge obutakyukakyuka mu kufulumya payipu.

SG7 (Ekigero kya Yinginiya ekikalu) .
Nga erina diguli ya polimeeri ya 700 - 850 ne K - omuwendo gwa 60 - 62, SG7 ekulembeza obulungi bw’okupakinga molekyu okusobola okukaluba. Ensengekera yaayo ey’obutundutundu 40 - 180μm (density 0.50 - 0.62g/mL) ekendeeza ku buziba mu bitundu ebibumbe, okutumbula okuziyiza okukubwa mu bifaananyi by’ebizimbe. Okunyiga kwa pulasitiika okutono (15 - 22g/100g) kusobozesa okukola ensengeka ezikaluba mu bujjuvu, ate vinyl monomer esigaddewo ≤3μg/g etuukana n’omutindo gw’obukuumi bw’emmere - okukwatagana n’okukozesa okupakinga.

Enkola y’okukozesa obutonde bw’ensi

SG3: Omukugu mu by’okukyukakyuka
Mu bitundu by’ebyobulimi, firimu ezisinziira ku SG3 nga ziriko obuveera bwa phr 40 - 50 zikola ebibikka ku girinaawuzi ebinywevu (UV - stabilized greenhouse covers), nga zitebenkeza okutambuza ekitangaala n’amaanyi agaziyiza amaziga. Ku by’obujjanjabi, monomer yaayo entono esobozesa ebyuma ebigonvu (soft tubing) ku byuma ebikuba omusaayi, ate mu ngatto, ekola ensowera ezisiba (elastic soles) ezikuuma ekifaananyi mu nkyukakyuka z’ebbugumu.

SG5: Embalaasi y’emirimu mu makolero
Abakola waya bakozesa obuveera bwa SG5 obwa 10 - 20 phr okukola ebisenge ebiziyiza ennimi z’omuliro ku mikutu gy’amasannyalaze, nga bagatta okuziyiza amasannyalaze n’okuwangaala mu byuma. Mu kuzimba, efuluma mu bifo ebisiba amadirisa ebiziyiza embeera y’obudde, ng’obukaluba bwayo obw’ekigero buziyiza okuvunda kwa ozone. Ebitundu by’emmotoka ebibumbe mu mpiso, gamba ng’okusiba enzigi, baganyulwa mu mugerageranyo gwayo ogw’okukuba - amaanyi - n’obuzito.

SG7: Nnantameggwa wa Rigidity
Enkola za payipu z’amakolero zeesigamye ku modulus ya SG7 eya waggulu ku payipu z’emyala ezigumira eddagala n’emikutu gy’amazzi egy’omutindo gwa puleesa. Ebifaananyi by’amadirisa ebifulumiziddwa, bwe bitabuddwamu titanium dioxide, biraga obutakwatagana bwa langi obw’enjawulo mu mbeera ez’ebweru. Abakola ebyuma bakikozesa mu nnyumba z’ebyuma ebibumbe mu mpiso, nga bakozesa obugumu bw’obutebenkevu bwayo mu bipimo mu kiseera ky’okukuŋŋaanya ebbugumu eringi.

Ekitabo ky’okulongoosa enkola

Ebintu ebitonotono ebikwata ku nzirukanya y’ebbugumu
SG3 yeetaaga okufuga ennyo ebbugumu (160 - 180°C) okuziyiza okuvunda nga tekunnabaawo; ne bwe kiba nga kisukkiridde ku 10°C kiyinza okuvaako asidi wa hydrochloric okufulumya, ekivaako okufuuka ekya kyenvu. Okwawukana ku ekyo, SG7 egumiikiriza okulongoosa 180 - 200°C, okusobozesa emiwendo gy’okufulumya amangu ku payipu ennene - eza dayamita, wadde ng’okusukka 210°C kiri mu bulabe bw’okusalasala kw’olujegere lwa molekyu.

Enteekateeka y’enkola y’okugatta
Okutebenkeza: SG3 yeetaaga 1 - 2 phr ya calcium - zinc composite stabilizers okusobola okuziyiza okuvunda kw’ebbugumu mu kiseera ky’okukola ku pulasitiika eya waggulu, ate SG7 yeetaaga 0.5 - 1 phr zokka olw’okukendeeza ku situleesi ereetebwa pulasitiika.
Okusiiga: Ebika byonna biganyulwa mu 0.2 - 0.5 phr ya polyethylene wax, naye SG3 eyinza okwetaaga dose ezisingako okukendeeza ku kusikagana okw’omunda mu bikozesebwa ebigonvu.
Functional Additives: Antioxidants mu SG7 formulations byongera ku bulamu bw’okuweereza ebweru, ate impact modifiers mu SG5 byongera ku notch resistance for cold - climate applications.

Obukugu mu by’obuyinginiya mu Resin Design

Nga tugatta yinginiya wa molekyu omutuufu n’okugezesa okuvugibwa okukozesebwa, ekifo kyaffe ekya SG3, SG5, SG7 kiwa abakola amaanyi okusukkuluma ku bukwakkulizo bwa PVC obw’ennono. Okuva ku kukyukakyuka okwetaagisa ku bintu eby’obujjanjabi ebisuulibwa okutuuka ku bunywevu bw’enzimba obwetaagisa okuzimba ebizimbe ebiwanvu, ebiwujjo bino birimu okuyungibwa kw’obukakafu bwa ssaayansi n’enkola y’amakolero —okuteekawo ebipimo ebipya ku bigonjoola bya polimeeri ebivugibwa omulimu.

Ebikwata ku nsonga eno

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