Dongxin Melamine (Xiamen) Chemical Co., Ltd.

Technical Advantages of Urea Moulding Compound: Why Is It an Alternative Material? 

• High adhesion and stability

  Urea formaldehyde moulding compound is formed by the condensation polymerization of urea and formaldehyde. It features excellent bonding strength and curing speed, and can effectively fix the insulating materials and housing components of switch panels. The "small hook" feature in its molecular structure (such as the introduction of flame-retardant components like phosphorus tetramethylmethyl chloride) can enhance the material's impact resistance and flame retardancy 18, making it suitable for electrical components that require long-term stability.

• Low cost and strong process adaptability

  As one of the cheapest synthetic resins, the production cost of urea-formaldehyde resin is only 1/37 of that of formaldehyde-free resins (such as MDI resins). In addition, its preparation process is mature, has strong compatibility with existing production lines, and can achieve large-scale production without the need for large-scale equipment transformation
  

Market trends and consumer choice suggestions

• Environmental protection demands drive industrial upgrading

    With the popularity of ENF-grade boards, consumers' preference for            "aldehyde-free" products is increasing day by day. Enterprises such as         Shuixing Ketian have achieved non-toxic boards through    formaldehyde-free glue technology and obtained the US EPA     certification 45, providing a reference for the upgrade of switch panel  materials.

• Rational purchasing strategy

  Recognize the test report: Ask the manufacturer to provide third-party formaldehyde emission test data, and give priority to choosing products with E0 grade or above.

• Pay attention to the edge banding process: Even if aldehyde-containing resin is used, good edge banding can reduce the release of formaldehyde.

• Support technological innovation: Encourage the use of environmentally friendly switch panels with modified urea-formaldehyde resin or mixed formaldehyde-free glue.
  

Technological Innovation: Breakthroughs in modified urea-formaldehyde Resin

• To balance performance and environmental protection, the industry is reducing the harm of formaldehyde through technological improvements: 1. Flame retardant and formaldehyde control technologies

• By adding flame retardants such as phosphorus tetramethylmethyl sulfate (THPS), or introducing melamine-modified resin during the synthesis stage, a continuous phase microstructure can be formed, reducing the release of free formaldehyde and enhancing the flame retardant efficiency. For instance, the synergistic flame-retardant urea-formaldehyde resin mentioned in the patent technology has a solid content of 58% to 62%, and its formaldehyde emission is significantly lower than that of traditional products

• Process optimization and formaldehyde-free substitution

  The structural units of degradable formaldehyde can be reduced by using processes such as hydroxymethyl rosin copolymerization and polyol etherification. Experiments show that the free formaldehyde content of the modified urea-formaldehyde resin can be reduced to 1.09%, and the pH value is stable at 6.8-7.2. In addition, some enterprises have attempted to use formaldehyde-free adhesives such as soy glue and MDI glue, but due to cost and weather resistance limitations, they have not yet been widely promoted