English
Konsumabbli tal-laboratorju huma l-għodod li jiġu kkunsmati matul l-esperiment. Hemm ħafna tipi minnhom. Skont il-materjali tal-konsum, huma maqsuma fi tliet kategoriji: ħġieġ, plastik u metall. Fost dawn, il-plastik kiseb aktar u aktar vantaġġi minħabba l-prestazzjoni eċċellenti tiegħu u l-iffurmar konvenjenti. Aktar u aktar użati. Materjali komuni jinkludu l-kategoriji li ġejjin:
PP (polypropylene): l-istabbiltà trasluċida, kimika u tat-temperatura hija aħjar, is-sensazzjoni tal-idejn hija aktar b'saħħitha minn PE, u tista 'tintuża f' madwar 100 grad, iżda ssir fraġli f'temperatura baxxa, mhux reżistenti għall-brix, faċli biex tixjieħ, reżistenti għall-korrużjoni, aċidu komuni, Solventi organiċi alkalini għandhom ftit effett fuqha.
PE (polyethylene): opak, toughness qawwija, anti-aging, piż ħafif, mingħajr tnixxija, tessut artab, u ma jirreaġixxix ma 'aċetun, aċidu aċetiku, aċidu idrokloriku, eċċ., relattivament stabbli, u faċli biex ittaffi f'temperaturi għoljin.
PS (polistirene): trasparenti , ebusija għolja, b'temperatura ta 'transizzjoni tal-ħġieġ ogħla minn 100 ℃, stabbli għall-biċċa l-kbira tas-soluzzjonijiet milwiema, iżda se tkun imsadda minn varjetà ta' sustanzi organiċi.
PC (polikarbonat): Għandu qawwa għolja u elastiċità, saħħa ta 'impatt għoli, trasparenza tajba, ebusija għolja, u tista' tkun sterili zed f'temperatura għolja, iżda mhuwiex reżistenti għal aċidi u alkali qawwija u xi solventi organiċi bħall-alkoħol.
PETG (polyethylene terephthalate): il-prodotti tiegħu huma trasparenti ħafna, toughness tajba, adattati għal forming prodotti trasparenti b'ħitan ħoxnin, PETG għandu eċċellenti prestazzjoni tal-ipproċessar u l-iffurmar, u jistgħu jiġu ddisinjati fi kwalunkwe forma skond l-intenzjonijiet tad-disinjatur's. Metodi ta 'estrużjoni tradizzjonali, iffurmar ta' injezzjoni, iffurmar blow u molding tal-folji.
Dawn ta 'hawn fuq huma materjali konsumabbli tal-laboratorju komuni. Bit-titjib tal-għarfien tan-nies dwar l-awto-protezzjoni, konsumabbli tal-ħġieġ fraġli jiġu sostitwiti gradwalment b'materjali tal-plastik u jsiru materjali komuni għall-konsumabbli.
The FAI climbed 5.9 percent year-on-year in the first 11 months of 2018, quickening from the 5.7-percent growth in Jan-Oct, the National Bureau of Statistics (NBS) said Friday in an online statement.
The key indicator of investment, dubbed a major growth driver, hit the bottom in August and has since started to rebound steadily.
In the face of emerging economic challenges home and abroad, China has stepped up efforts to stabilize investment, in particular rolling out measures to motivate private investors and channel funds into infrastructure.
Friday's data showed private investment, accounting for more than 60 percent of the total FAI, expanded by a brisk 8.7 percent.
NBS spokesperson Mao Shengyong said funds into weak economic links registered rapid increases as investment in environmental protection and agriculture jumped 42 percent and 12.5 percent respectively, much faster than the average.
In breakdown, investment in high-tech and equipment manufacturing remained vigorous with 16.1-percent and 11.6-percent increases respectively in the first 11 months. Infrastructure investment gained 3.7 percent, staying flat. Investment in property development rose 9.7 percent, also unchanged.