Examples of application of polyurethane composite anti-heartburn agent in papermaking process

Date：2025-03-16 Categories：News

Polyurethane composite anti-heartburn agent: the “guardian” in papermaking process

In the modern industry, various chemical additives are like little heroes hidden behind the scenes, silently protecting the performance improvement of the product. In the papermaking process, polyurethane composite anti-living agent is such an indispensable “guardian”. With its unique performance and wide application, it has become a shining star in the paper industry.

1. Definition and function of polyurethane composite anti-heartburn agent

Polyurethane composite anti-heartburn agent is a chemical preparation composed of polyurethane substrate and other functional materials. It is mainly used to improve the heat resistance and stability of paper in high temperature environments. Its main functions can be summarized as follows:

Enhanced Heat Resistance: By forming a stable protective layer, it reduces deformation and damage of paper under high temperature conditions.
Improving dimensional stability: Effectively control the shrinkage and expansion of paper during processing to ensure the quality of the final product.
Improving surface performance: Give paper a smoother and more wear-resistant surface properties, suitable for high-end printing and packaging needs.
Environmentally friendly: Use biodegradable or low-volatility raw materials to reduce the impact on the environment.

These functions make polyurethane composite anti-heartburns play a crucial role in the papermaking process, not only improving the quality of the paper, but also extending its service life.

2. Product parameters and technical indicators

In order to better understand the performance of polyurethane composite anti-heartburn agents, the following are its main technical parameters and indicators:

parameter name	Unit	Indicator Value
Density	g/cm³	1.05-1.15
Viscosity	mPa·s	500-1000
Solid content	%	≥45
Heat resistance temperature	°C	180-220
pH value	–	6.5-7.5

These parameters not only reflect the physical and chemical properties of the product, but also provide a basis for its choice in different application scenarios.

3. Current status of domestic and foreign research

Domestic research progress

In recent years, significant progress has been made in domestic research on polyurethane composite anti-heartburn agents. For example, a research team successfully developed a new composite anti-heartburn agent by optimizing the molecular structure of polyurethane, whose heat resistance temperature can reach more than 220°C, far exceeding the performance of traditional products. In addition, the team also introduced bio-based raw materials to make the product more environmentally friendly and sustainable.

Foreign research trends

In foreign countries, especially in Europe and the United States, the research on polyurethane composite anti-living agents is more in-depth. Some multinational companies have achieved industrial production of products and applied them to high-end paper manufacturing. For example, a German chemical company has developed a composite anti-heartburn agent with self-healing function, which can automatically restore performance after minor damage, greatly extending the service life of the paper.

IV. Application case analysis

Example 1: High-grade printing paper

In the production of high-grade printing papers, polyurethane composite anti-living agents are widely used to improve the flatness and gloss of paper. By adding an appropriate amount of composite anti-heartburn agent, the paper can not only enhance the heat resistance, but also enable it to show excellent operating performance on high-speed printing machines.

Example 2: Food packaging paper

For food packaging paper, safety is the primary consideration. Polyurethane composite anti-heartburn agents are ideal for their good stability and low mobility. It effectively prevents grease penetration while maintaining the strength and toughness of the paper.

5. Future development prospect

With the advancement of technology and changes in market demand, the development prospects of polyurethane composite anti-heartburn agents are very broad. Future research directions may include:

Multifunctionalization: Develop products with multiple functions such as antibacterial and mildew to meet the special needs of different fields.
Intelligent: Use intelligent material technology to realize real-time monitoring and self-regulation of composite anti-heartburn agents.
Greenization: further reduce the environmental impact of products and promote sustainable development.

In short, polyurethane composite anti-heartburn agent, as an important additive in the papermaking process, is contributing to the progress of the industry with its outstanding performance and continuous technological innovation. As a poet said: “Small details make the big world”, these seemingly inconspicuous chemical substances actually carry the hope and future of the development of the entire industry.

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