Cov thawv ntim khoom noj ceev uas siv tau pov tseg tau hloov los ntawm cov thawv ua npuas ncauj rau cov thawv noj su uas zoo ib puag ncig. Thawj lub thawv ntim khoom noj khoom haus tau raug tshem tawm vim tias lawv tsis tiv taus qhov kub thiab txias thiab cov txheej txheem tsim khoom ua rau muaj kev puas tsuaj rau ib puag ncig. Cov thawv ntim khoom noj khoom haus, cov thawv ntawv noj su, cov thawv noj su ntoo, thiab cov thawv noj su uas degradable tau raug hloov. Thiab lwm yam. Ntawm lawv, yas muaj cov yam ntxwv ntawm cov tshuaj lom neeg tsawg, siab melting point, muaj zog plasticity, yooj yim tsim thiab tus nqi qis, yog li nws tau dhau los ua cov khoom siv tseem ceeb rau kev tsim cov thawv ntim khoom noj ceev.
Yog li dab tsi peb yuav tsum xyuam xim rau thaum siv cov khoom noj su uas siv tau pov tseg? Cia kuv qhia koj txog nws hauv qab no:
1. Ua tib zoo saib xyuas qhov kub thiab txias ntawm cov khoom noj su ua los ntawm cov khoom sib txawv. Cov thawv noj su ua los ntawm PP muaj qhov kub thiab txias thiab tuaj yeem siv los tuav cov zaub mov kub thiab tais diav. Cov thawv noj su ua los ntawm PS yog qhov nyuaj thiab yooj yim tawg. Lawv pib soften thaum qhov kev khiav hauj lwm kub nce mus txog 75 degree. Cov zaub mov yuav tsum tau txias rau chav sov ua ntej muab tso rau hauv PS noj su. Sim tsis txhob ua kom sov cov zaub mov hauv lub qhov cub microwave nrog lub thawv raws li nws cov khoom tsis muaj qhov kub thiab txias zoo heev rau tuav cov khoom noj hauv tub yees.
2. Cov khoom xyaw zaub mov txawv muaj qhov yuav tsum tau ua rau lub thawv noj mov. Cov khoom noj uas muaj roj ntau thiab qab zib tsis haum rau ntim rau hauv lub thawv noj su vim tias cov roj kub kub tau yooj yim tshaj qhov kub tsis kam ntawm cov yas. Roj, qab zib hauv cov zaub mov, thiab cov khoom siv yas thiab lwm yam tshuaj lom neeg hauv cov thawv noj su yog txhua yam organic. Raws li cov xwm txheej zoo sib xws, Vim yog lub hauv paus ntsiab lus ntawm kev sib cais, tshuaj lom neeg cov tshuaj tiv thaiv tuaj yeem tshwm sim nrog cov thawv noj su, ua rau muaj kev pheej hmoo rau pej xeem kev noj qab haus huv thiab kev nyab xeeb zaub mov.
