TPM Tripropylene glycol monomethyl ether CAS 20324-33-8

It is a water-soluble monomethyl ether that is low in toxicity and almost odorless.

About TPM tripropylene monomethyl ether  :

Chemical property

Structure: tripropylene glycol monomethyl ether is a compound obtained by esterifying tripropylene glycol and methacrylate. Its molecular formula is C15H22O5, and its molecular weight is 278.34.

Stability: tripropylene glycol monomethyl ether is stable at room temperature and is not easily hydrolyzed or oxidized. It has certain stability to acid, base and heat.

Reactivity: tripropylene glycol monomethyl ether has a high reactivity and can be polymerized with vinyl monomer to produce a polymer with a cross-linked structure.

Physical property

Boiling point and melting point: the boiling point of tripropylene glycol monomethyl ether is about 270 ° C, and the melting point is about 68 ° C.

Relative density: The relative density of tripropylene glycol monomethyl ether is about 1.06, slightly heavier than water.

Refractive index: The refractive index is about 1.46, similar to water.

Viscosity: The viscosity of tripropylene glycol monomethyl ether is low, similar to water.

Security

Tripropylene glycol monomethyl ether is a low-toxic chemical but may irritate the skin and eyes at high concentrations or prolonged exposure. Prolonged inhalation of its volatile gases may irritate the respiratory tract. Therefore, appropriate protective measures should be taken when using tripropylene glycol monomethyl ether, such as wearing chemical protective glasses, gloves, and chemical protective clothing. Good ventilation should be maintained during storage and use to avoid inhalation of volatile gases.

Technical Parameter of Tripropylene glycol Monomethyl Ether  :

Applications of TPM Tripropylene glycol monomethyl ether:

Coatings and inks

Inks: Inks, tripropylene glycol monomethyl ether is used as a thickener and binder to improve ink adhesion and printing performance. It helps the ink transfer smoothly in the printing process and maintains a good printing effect.

Adhesive field

Quick-drying glue: tri propylene glycol monomethyl ether can be used as the formula ingredient to improve the adhesion and curing speed.

Structural adhesives: In the manufacture of structural adhesives, tripropylene glycol monomethyl ether helps improve adhesive durability and adhesion, ensuring good bonding properties.

Special adhesive: In the need for special adhesion properties, such as glass, ceramics and other materials bonding, tripropylene glycol monomethyl ether can improve the adhesive adhesion and durability.

Sealant field

Building sealants: In building sealants, tripropylene glycol monomethyl ether can improve the durability and adhesion of sealing materials, ensuring the air tightness and water tightness of buildings.

Automotive sealant: The sealant used in the automotive industry requires excellent weather resistance and wear resistance, and tripropylene glycol monomethyl ether can improve the adhesion and durability of the sealant.

Electronic industry sealing: In the electronics industry, due to the high requirements for sealing materials, tripropylene glycol monomethyl ether can be used to improve the adhesion and temperature resistance of electronic component sealants.

Other areas

Textile treatment: In the textile industry, tripropylene glycol monomethyl ether can treat and finish textiles to improve their wear and wrinkle resistance.

Leather processing: In the process of leather processing, tripropylene glycol monomethyl ether can improve the hardness and water resistance of the leather coating, improving the feel and appearance of the leather.

Tobacco processing: In tobacco processing, tripropylene glycol monomethyl ether can be used as an additive to moisturize and enhance tobacco flavor.

Petroleum industry: In the petroleum industry, tripropylene glycol monomethyl ether can be used as a crosslinking agent to prepare oil well cement to improve its compressive strength and durability.

Cosmetics industry: In cosmetics, tripropylene glycol monomethyl ether can be used to formulate personal care products such as moisturizers and sunscreens to enhance moisturizing and moisturizing effects.

Medical device manufacturing: In the manufacturing process of medical devices, tripropylene glycol monomethyl ether can be used to improve the hardness and chemical resistance of medical device coatings.

Food packaging materials: In manufacturing food packaging materials, tripropylene glycol monomethyl ether can improve the barrier properties and heat resistance of food packaging coatings.

Solar energy industry: In the manufacturing process of solar panels, tripropylene glycol monomethyl ether can be used as a crosslinking agent to prepare EVA film to improve its heat resistance and stability.

Electronics industry: In electronics, tripropylene glycol monomethyl ether can improve the heat resistance and properties of electronic component insulation coatings.

Production Method of TPM Tripropylene glycol monomethyl ether:

Esterification process

Esterification is the most commonly used method for producing tripropylene glycol monomethyl ether. The method is to esterify tripropylene glycol with methacrylic acid under the action of a catalyst, then obtain tripropylene glycol monomethyl ether by refining and purifying. The specific steps are as follows:

Refining and purification: The resulting product may contain impurities such as unreacted raw materials, catalysts, and by-products. These impurities must be removed by refining and purification to obtain high-purity tri propylene glycol monomethyl ether. Common refining methods include washing, salting, crystallization, etc.

Separation and recovery: Some unreacted raw materials and catalysts remain in the product during esterification and refining. Common separation methods include filtration, centrifugation and evaporation.

The advantages of esterification are easy availability of raw materials, mature process, high purity and yield of products. However, this method needs to use a lot of organic solvents and catalysts, which may cause environmental pollution. Therefore, it is necessary to pay attention to environmental protection issues in the production process and strengthen the treatment and utilization of wastewater and waste residues.

Isomerization method

Isomerization is a method of converting other alcohols to tri propylene glycol monomethyl ether by isomerization reaction. The raw material for this process is usually tetrahydrofuran (THF) or ethylene oxide (EO), and tripropylene glycol monomethyl ether is obtained through a series of chemical reactions. The specific steps are as follows:

Isomerization reaction: tetrahydrofuran or ethylene oxide is isomerized under the action of an acidic catalyst to obtain the intermediate product 3-methyl-1, 5-pentanediol or 3-ethoxy-1, 2-pentanediol.

Oxidation reaction: The intermediate product is oxidized with oxygen at a certain temperature and pressure to produce the target product, tripropylene glycol monomethyl ether. This step usually requires a catalyst to speed up the reaction and increase the purity of the product.

Refining and purification: The resulting product may contain impurities such as unreacted raw materials, catalysts, and by-products. These impurities must be removed by refining and purification to obtain high-purity tri propylene glycol monomethyl ether. Common refining methods include washing, salting, crystallization, etc.

The advantage of isomerization is that it can start from relatively cheap raw materials and obtain high-value-added products through chemical reactions. At the same time, the method can avoid using many organic solvents and catalysts and reduce environmental pollution. However, the isomerization process is longer and requires multiple chemical reaction steps, so the production cost is higher. In addition, the limited availability of tetrahydrofuran and ethylene oxide feedstocks for the process may affect the ability to produce them on a large scale.

The synthesis method

The synthesis method is the direct synthesis of tripropylene glycol monomethyl ether. Tripropylene glycol monomer was prepared from formaldehyde, acrolein, and hydrogen through a catalytic addition reaction and then esterified with methacrylic acid to obtain tripropylene glycol monomethyl ether. The specific steps are as follows:

Preparation of tripropylene glycol monomer: formaldehyde, acrolein, and hydrogen are added under a catalyst to produce tripropylene glycol monomer. This step usually requires controlling the reaction temperature and pressure to ensure a high-purity product.

Esterification reaction: the tripropylene glycol monomer is mixed with methacrylic acid according to a certain molar ratio, and the catalyst is added, such as sulfuric acid, phosphoric acid, or sodium hydroxide, and the esterification reaction is carried out at a certain temperature. 

Refining and purification: The resulting product may contain impurities such as unreacted raw materials, catalysts, and by-products. These impurities must be removed by refining and purification to obtain high-purity tri propylene glycol monomethyl ether. Common refining methods include washing, salting, crystallization, etc.

The advantage of the synthesis method is that the target product of tripropylene glycol monomethyl ether can be directly obtained, which avoids the use of a lot of organic solvents and catalysts and reduces environmental pollution. At the same time, the raw material source of this method is wide, and the production cost is low. However, the synthesis process is long and requires multiple chemical reaction steps, making the technology more difficult. In addition, the method requires using hydrogen as a feedstock, requiring special attention to safety issues.

Shipping & Packing of TPM (Tripropylene glycol Monomethyl ether):  
 The packaging we offer is dependent on the TPM Tripropylene monomethyl ether (TPM) quantity.  
 TPM Packaging of Tripropylene glycol Monomethyl Ether: 1kg/bottle; 25kg/barrel or 200kg/barrel.  
 TPM shipping: Could be sent out by air, sea, or express as soon after payment receipt.

TPM Tripropylene monomethyl ether Properties    

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