HDPEthiab PVC

Cov khoom yas muaj zog heev thiab yooj yim hloov pauv. Lawv tuaj yeem pwm, nias lossis pov rau hauv ntau yam duab sib txawv. Lawv feem ntau yog ua los ntawm roj thiab roj av. Muaj ob hom yas; thermoplastics thiab thermoset polymers.

Txawm hais tias cov thermoset polymers tsuas yog yaj thiab ua tau ib zaug xwb thiab tseem khov kho thaum txias, cov thermoplastics tuaj yeem yaj thiab ua tau ntau zaus thiab yog li ntawd rov ua dua tshiab.

Cov thermoplastics yog siv los ua cov thawv, lub raj mis, cov thoob roj, cov rooj thiab cov rooj zaum uas quav tau, cov tsev me, cov hnab yas, cov khoom rwb thaiv hluav taws xob, cov vaj huam sib luag tiv thaiv mos txwv, cov khoom ua si hauv pas dej, cov rooj zaum, khaub ncaws thiab cov kav dej.

Muaj ntau hom thermoplastics, thiab lawv raug cais ua amorphous lossis semi-crystalline. Ob ntawm lawv yog amorphousPVC(polyvinyl chloride) thiab semi-crystalline HDPE (high density polyethylene). Ob qho tib si yog cov khoom lag luam polymers.

Polyvinyl chloride (PVC) yog ib hom vinyl polymer pheej yig thiab ruaj khov siv rau hauv cov haujlwm tsim kho. Nws yog cov yas thib peb uas siv dav tshaj plaws tom qab polyethylene thiab polypropylene thiab siv dav hauv kev tsim cov kav dej. Nws tsis hnyav thiab muaj zog, ua rau nws nrov heev rau kev siv cov kav dej saum av thiab hauv av. Nws ruaj khov heev thiab tsim nyog rau kev faus ncaj qha thiab kev teeb tsa tsis muaj qhov.

Ntawm qhov tod tes, polyethylene siab ntom (HDPE) yog polyethylene thermoplastic ua los ntawm roj av. Nws muaj zog dua, tawv dua, thiab tuaj yeem tiv taus qhov kub siab.
Cov kav dej HDPE yooj yim siv rau hauv cov kav dej hauv av, vim lawv tau pom tias ua rau cov dej noo thiab nqus tau cov nthwv dej poob siab, yog li txo cov nthwv dej uas tuaj yeem cuam tshuam rau lub kaw lus. Lawv kuj muaj qhov tiv taus qhov sib koom ua ke zoo tshaj plaws thiab tiv taus kev sib txhuam thiab cua sov ntau dua.

Txawm hais tias ob qho khoom siv muaj zog thiab ruaj khov, lawv sib txawv hauv lub zog thiab lwm yam. Ntawm ib sab tes, lawv tau tsim los kom tiv taus ntau yam kev ntxhov siab. Yuav kom ua tiav qhov ntsuas siab zoo ib yam li PVC yeeb nkab, HDPE yeeb nkab phab ntsa yuav tsum tuab dua 2.5 npaug ntawm PVC yeeb nkab.

Txawm hais tias ob qho tib si cov ntaub ntawv kuj siv los ua hluav taws xob,HDPEtau pom tias siv tau zoo dua thiab muaj kev nyab xeeb dua vim nws tuaj yeem tua cov foob pob hluav taws kom siab. Yog tias nws tsis pib hauv lub thawv thiab tawg, lub thawv HDPE yuav tsis tawg nrog lub zog ntau npaum li lub thawv PVC.

Yuav kom xaus lus luv luv:

1. Polyvinyl Chloride (PVC) yog ib hom vinyl polymer pheej yig thiab siv tau ntev uas siv rau hauv kev tsim kho, thaum High Density Polyethylene (HDPE) yog ib hom polyethylene thermoplastic ua los ntawm roj av.
2. Polyvinyl chloride yog cov yas thib peb uas siv dav tshaj plaws, thiab polyethylene yog ib qho ntawm cov yas uas siv dav tshaj plaws.
3. PVC yog amorphous, thaum HDPE yog semi-crystalline.
4. Ob leeg muaj zog thiab ruaj khov, tab sis muaj zog sib txawv thiab kev siv sib txawv. PVC hnyav dua thiab muaj zog dua, thaum HDPE nyuaj dua, tiv taus kev txhuam ntau dua thiab tiv taus cua sov ntau dua.
5. Cov kav dej HDPE tau pom tias tswj thiab nqus cov nthwv dej poob siab, yog li ntawd txo cov nthwv dej uas tuaj yeem cuam tshuam rau lub kaw lus, thaum PVC ua tsis tau.
6. HDPE zoo dua rau kev teeb tsa qis siab, thaum PVC zoo dua rau kev faus ncaj qha thiab kev teeb tsa tsis muaj qhov.