Vim li cas't PPR tube yug cov kab mob thiab nplai?
PPR yeeb nkab khoom yog random copolymer polypropylene, uas yog ib tug tsawg-polar saturated aliphatic hydrocarbon ntev-chain polymer. Cov khoom PPR yeeb nkab muaj qhov qis qis, yog li cov dej tsis tuaj yeem nkag mus rau phab ntsa yeeb nkab. Txawm tias nyob rau qhov kub siab dua, dej tsis tuaj yeem nkag mus rau qhov chaw ntawm cov yeeb nkab. Cov khoom siv PPR nws tus kheej yog qhov nyuaj heev los ua cov khoom noj rau cov kab mob, yog li nws nyuaj rau cov kab mob ua raws li cov kav dej, thiab nws nyuaj rau cov calcium thiab magnesium ions hauv cov dej kom sib sau thiab teev ntawm cov yeeb nkab. phab ntsa.
Cov khoom siv PPR yeeb nkab yog hloov kho polypropylene. Vim li cas nws tsis muaj tshuaj lom thiab tsis qab?
Cov khoom siv tshwj xeeb rau cov kav dej PP-R yog ib qho me me ntawm ethylene thiab propylene, uas yog randomly polymerized los ntawm roj theem copolymerization. Nws yog kev hloov kho tshuaj, uas txawv ntawm qhov kev hloov kho lub cev ntawm kev ntxiv lwm yam khoom ntxiv. Nws cov saw ntev molecular yog tsim los ntawm ob lub ntsiab lus, C thiab H, thiab tsis muaj cov tshuaj lom thiab tsis tso cov tshuaj phem.
