トリイソプロパノールアミン 化学特性,用途語,生産方法
外観
白色～わずかにうすい 黄色 または 融解時 無色 - わずかにうすい黄色澄明塊 または融解時液体
定義
TIPAは、トリイソプロパノールアミンの表示名称である。本品は、次の化学式で表されるアルカノールアミンである。
溶解性
エタノール及び塩酸に溶け、水にほとんど溶けない。
用途
繊維助剤、乳化剤
用途
界面活性剤(乳化剤、可溶化剤) 架橋剤(ゴム)
化粧品の成分用途
pH調整剤、腐蝕防止剤
使用上の注意
不活性ガス封入
説明
Triisopropanolamine (TIPA), a tertiary alkanolamine, is majorly used as a grinding chemical that reduces agglomeration in the ball milling process and changes the particle distribution of the finished cement.
化学的特性
Triisopropanolamine is a white to slightly yellow crystalline that is almost odorless. It is fully soluble in water. It is a corrosive and hygroscopic solid.
使用
Triisopropanolamine is an amine used for a variety of industrial applications including as an emulsifier, stabilizer, and chemical intermediate. It is also used to neutralize acidic components of some herbicides. It is majorly used as a grinding chemical that reduces agglomeration in the ball milling process and changes the particle distribution of the finished cement.
製造方法
The process involves preparing raw materials with a molar ratio of 1:3.00 to 3.05 using liquefied ammonia (pure ammonia) and propylene oxide. The reactor is decompressed to -0.098Mpa to remove oxygen, then deionized water is added to achieve a 28-60% concentration of ammoniacal liquor. The ammonia and propylene oxide are introduced in two batches: first, half the weight of liquefied ammonia is pumped into the still, followed by half the weight of propylene oxide at 20-50°C, maintaining an internal pressure below 0.5Mpa and a reaction temperature of 20-75°C. After adding propylene oxide, the mixture is kept for 1.0-3.0 hours. Then, under the same conditions, the second half of the liquefied ammonia and propylene oxide are added, and the reaction continues for another 1.0-3.0 hours at 20-120°C. After the reaction, the pressure in the reactor is reduced to remove moisture and low-boiling impurities, resulting in a Triisopropanolamine product with less than 5% water content.
主な応用
Triisopropanolamine (TIPA) can act as an interfacial transition zone (ITZ) to improve the mechanical properties of the mortar and the concrete. It can also be used to increase the compressive strength of the cement-fly ash system by accelerating the hydration of both the compounds.
1. Cement industry - TIPA is commonly used a cement grinding additives. It increases the strength of cement and other mixtures for cement.
2. Metallurgy - TIPA is used as antioxidants and coolant and prevent corrosion in metals.
3. Polyurethane industry - preliminary usage as a agent and catalyst to improve PU quality.
4. Textile industry - TIPA is used as refining agent and other dye specific agent properties.
一般的な説明
White solid with slight odor of ammonia. Denser than water .
空気と水の反応
Water soluble
反応プロフィール
Triisopropanolamine neutralizes acids to form salts plus water in exothermic reactions. May be incompatible with isocyanates, halogenated organics, peroxides, phenols (acidic), epoxides, anhydrides, and acid halides. Flammable gaseous hydrogen is generated by combination with strong reducing agents, such as hydrides.
危険性
Irritant to skin and eyes.
健康ハザード
Irritation of eyes and skin. May cause slight corneal injury or burn. Repeated contact may cause skin burn. Heated vapor may cause moderate respiratory irritation. Low to moderately toxic by oral routes.
予防処置
Hygroscopic. Store away from oxidizing agents, water/moisture. Keep the container tightly closed and place it in a cool, dry and well ventilated condition. Store under inert gas.
参考文献
Pensri Piboonchaisit, et al. Novel Route to Tris(silatranyloxy-i-propyl)amine Directly from Silica and Triisopropanolamine, Part I.ScienceAsia.1999,25113-119.
Paul J. Sandberg.; F. Doncaster. On the mechanism of strength enhancement of cement paste and mortar with triisopropanolamine.Cem. Concr. Res.2004,34(6), 973-976.
トリイソプロパノールアミン 上流と下流の製品情報
原材料
準備製品