chemical gypsum 中文意思是什麼
chemical gypsum
解釋
化學石膏-
Through the analyzing the macro - structure to micro - structure, the author considers that retarding mechanism of citric acid is that citric acid and ca in the gypsum form the complexant ion, and hinder the crystallization center of dihydrate crystal bigger ; that of sodium tripolyphosphate is that it combined with ca, hinders the dissolve of hemihydrate. formation and growth of crystallization center ; that of bone glue is the glue - protection and chemical absorption action of active group, which also retards the formation and growth of crystallization center
通過宏觀到微觀的分析，筆者認為，檸檬酸的緩凝作用的原因主要在於檸檬酸與鈣形成絡合離子，影響了二水石膏晶體的晶核長大過程；多聚磷酸鈉與鈣形成某種復鹽，對于石膏晶體的溶解、成核和長大過程均有強烈的阻礙影響；骨膠則在於膠體對半水石膏的包裹和活性基團的化學吸附，使二水石膏晶體的成核和長大困難。 -
Paper faced gypsum board is mainly made of construction plaster ( calcined with natural gypsum of chemical by product ) and protective paper, mixing with appropriate fiber, modified starch, coagulant agent, vesicant and water
紙面石膏板是以建築石膏（利用天然石膏或化學副產品石膏煅燒制得）和護面紙為主要原料，摻加適量纖維、改性澱粉、促凝劑、發泡劑和水，經混合、成型、凝固、切斷、烘乾、切邊等工藝製成的輕質建築板材。 -
Paper faced gypsum board is mainly made of construction plaster calcined with natural gypsum or chemical by - product and protective paper, mixing with fiber, modified starch, coagulant agent, vesicant and water. which are mixed, formed, coagulated, cut, dryed and sliced into light construction material. they have advantages of light weight, fire resistance, soundproof, damp proof, heat insulation, easy to operate sawn, nailed or milled an disassemble. it s widely applied in industrial and civil constructions, especially widely used as interior wall, less loading wall, ceiling etc in high buildings
紙面石膏是以建築石膏利用天然石膏或化學副產品石膏煅燒制得和護面紙為主要原料，摻加適量纖維改性澱粉促凝劑發泡劑和水，經混合成型凝固切斷烘乾切邊等工序製成的輕質建築板材。 -
Methods for chemical analysis of gypsum
石膏的化學分析方法 -
Standard test methods for chemical analysis of gypsum and gypsum products metric
石膏和石膏製品的化學分析標準試驗方法
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