Difference Between Urea Formaldehyde and Melamine Formaldehyde

Thekey difference between urea formaldehyde and melamine formaldehydeis that urea formaldehyde is made using urea and formaldehyde monomers, whereas melamine formaldehyde is made from the combination of melamine and formaldehyde monomers.

尿素甲醛和三聚氰胺甲醛都是由不可逆硬化（也称为固化）获得的热固性聚合物prepolymer.

CONTENTS

1.Overview and Key Difference
2.What is Urea Formaldehyde
3.What is Melamine Formaldehyde
4.Urea Formaldehyde vs Melamine Formaldehyde in Tabular Form
5.Summary – Urea Formaldehyde vs Melamine Formaldehyde

What is Urea Formaldehyde?

Urea formaldehyde or尿素 - 甲烷is a non-transparent thermosetting resin or polymer. We can abbreviate it as UF, and it is known as urea formaldehyde because of its common synthesis pathway and overall structure. This resin is important in adhesives, finishes, particleboards, medium density fiberboards, and moulded objects.

The refractive index of urea formaldehyde is 1.55. There are several important properties of urea formaldehyde which include the following:

1. High tensile strength
2. Flexural modulus
3. 高热失真温度
4. Low water absorption
5. Mould shrinkage
6. High surface hardness
7. Elongation at break
8. Volume resistance

When considering the chemical structure of urea formaldehyde, it contains [(O)CNHCH₂NH]_nas the repeating unit. Usually, this resin occurs as chain polymers but depending on thepolymerizationconditions; there can be branched structures as well. Annually, manufacturers produce about 20 million metric tons of UF. More than 70% of this production is used in the forest-products industry for the bonding particleboard, MDF hardwood plywood, and laminating adhesives.

该树脂通常普遍存在。尿素甲醛有许多不同的应用，包括装饰层压板，纺织品，纸张，铸造砂霉，抗皱纹的织物，棉花混合物，人造丝等。此外，还有一些农业用途，其中包括其主要用作氮的缓释来源。此外，自早期以来，该树脂被用作泡沫绝缘材料。

What is Melamine Formaldehyde?

Melamine formaldehyde is a resin having melamine rings terminated with multiplehydroxyl groups来自甲醛。它是一个热setting plastic material consisting of melamine and formaldehyde. This resin material was introduced by William F. Talbot in 1936.

这种树脂材料可以通过加热轻松治愈。在这里，发生脱水和交联。我们可以通过用任何类型的多元元处理来治愈三聚氰胺甲醛树脂或该树脂材料的单体。

The major application of melamine-formaldehyde resin is the production of high-pressure laminates. The laminate types that we can produce using this resin include Formica and Arborite. Furthermore, we can use the tile wall panels of this resin as whiteboards. In addition, there are some other applications of melamine-formaldehyde resin, including the use of the resin in kitchen utensils and plates. It is also important for saturating decorative paper that is laminated under heat and pressure where it becomes easy to be pasted on particle boards.

What is the Difference Between Urea Formaldehyde and Melamine Formaldehyde?

尿素甲醛和三聚氰胺甲醛是热固性聚合物。Urea-formaldehyde or urea-methanal is a non-transparent thermosetting resin or polymer, whereas melamine formaldehyde is a resin having melamine rings terminated with multiple hydroxyl groups that are derived from formaldehyde. The key difference between urea formaldehyde and melamine formaldehyde is that urea-formaldehyde is made using urea and formaldehyde monomers whereas melamine formaldehyde is made from the combination of melamine and formaldehyde monomers.

以下信息图总结了表格形式的尿素甲醛和三聚氰胺甲醛之间的差异。

Summary – Urea Formaldehyde vs Melamine Formaldehyde

尿素甲醛和三聚氰胺甲醛是热固性聚合物。尿素甲醛和三聚氰胺甲醛之间的关键区别在于，尿素甲醛是使用尿素和甲醛单体制成的，而三聚氰胺甲醛是由三聚氰胺和甲醛和甲醛单体组合制成的。

Reference:

1. “Melamine Formaldehyde Resins.”ScienceDirect主题.

Image Courtesy:

1. “UFresinSyn” By Smokefoot – Own work(CC BY-SA 4.0)via Commons Wikimedia
2. “Piatto in melammina” By User:Luigi Chiesa – Own work(CC BY 3.0)via Commons Wikimedia