Advantages of Trimethylolethane (TME) in Organic Treatment of Titanium Dioxide- Jiangxi Keding Chemical Materials Co., Ltd.

Advantages of Trimethylolethane (TME) in Organic Treatment of Titanium Dioxide

Release time：

2019-06-13

1. Comparison of basic characteristics of trimethylolethane (TME) and trimethylolpropane (TMP)
1. Trimethylolethane (TME)
English name: Trimethylolethane
Molecular formula: C5H12O3
Molecular weight: 120.15
Melting point: 185~203℃
Toxicity: non-toxic
Physical and chemical properties: white crystalline solid
Solubility: easily soluble in water and low-carbon fatty alcohols, slightly soluble in ketones, esters and ethers (solubility in some solvents: water 140, methanol 75.2, ethanol 27.9.g/100g solvent, 25℃).
2. Trimethylolpropane (TMP)
English name: Trimethylolproane
Molecular formula: C6H14O3
Molecular weight: 134.18
Melting point: 58~60℃
Toxicity: Toxic
Physical and chemical properties: white flaky crystal
Solubility: easily soluble in water, low-carbon alcohol, glycerin. Partially soluble in acetone and ethyl acetate. Slightly soluble in ether, chloroform and carbon tetrachloride.
TME is a classical neopentyl structure compound. The three hydroxyl groups of TME are only connected to one carbon atom, and the hydroxyl group at the α position tightly surrounds the carbon atom in the middle, blocking its way of participating in external reactions, that is to say, the hydroxyl group at the α position puts the easily attacked position It is occupied in advance, and there are no β-hydrogen bonds (hydrogen bonds are prone to thermal reactions). Therefore, TME is structurally stable, has good temperature resistance, weather resistance and superior resistance to light, thermal decomposition, antioxidants and chemicals.
When used in the field of synthetic resin, compared with TMP, the resin synthesized with TME has higher hardness, better temperature resistance and weather resistance, and has good salt spray resistance, corrosion resistance and non-toxicity. And the resin synthesized by TME can still maintain the stability of color and luster in harsh weather environment, especially the yellowing resistance of TME is much better than TMP.
When used in the field of titanium dioxide coating, TME has better film-forming hardness than TMP, which makes the coated titanium dioxide particles easier to be crushed. TME has excellent initial gloss, good pigment wetting and adhesion, strong versatility, does not affect the crosslinking of downstream coatings, plus its non-toxic and environmentally friendly properties, TME is undoubtedly a very good titanium dioxide Organic surface treatment agent.