Waterborne Polyurethane Hardener
Waterborne polyurethane hardener, also called as cross-linking agent is hydrophilic aliphatic polyisocyanate.
PU cross-linking agent,hydrophilic aliphatic polyisocyanate,waterborne PU hardener Shanghai Na Long Tech Co., Ltd , https://www.na-long.com
Decorating a home is a common practice, but the issue of indoor pollution is far from new. Many people who have been involved in home improvement believe they are experts in this area. The labels like "environmental materials" and "green building materials" seen in stores often give the impression that eco-friendly home improvement is achievable. However, the promises made by sales representatives may lead consumers to choose costly "green renovation programs." Yet, it's important to realize that simply choosing such products doesn’t guarantee a safe living environment.
There are several common misconceptions about indoor air pollution. One is the belief that eliminating indoor pollution means only removing formaldehyde. While formaldehyde is indeed a major pollutant—often coming from particle boards, furniture, adhesives, and synthetic fabrics—it’s not the only concern. Other harmful substances like benzene, toluene, and xylene can also be present, especially from paints, solvents, and thinners. Prolonged exposure to these chemicals can lead to serious health issues, including chronic poisoning, allergic reactions, and even more severe conditions like aplastic anemia.
Another misunderstanding is thinking that using standard materials automatically ensures safety. While standard materials meet certain national limits for harmful emissions, if used in large quantities within a confined space, their cumulative effect can still exceed safe levels. Ventilation alone isn’t enough either. Although it helps reduce some pollutants, formaldehyde can take over 15 years to fully dissipate, and benzene may linger for up to a year. Most people move into a newly renovated home after just three months of ventilation, which is insufficient.
Some people rely on plants to clean the air, but while plants can absorb small amounts of toxins, their effect is minimal in larger spaces. Furniture is another often-overlooked source of pollution. Materials used in furniture, such as adhesives and paints, can release formaldehyde and other harmful gases. It’s wise to avoid buying furniture with strong odors and instead go for reputable brands.
Air fresheners are often used to mask bad smells, but they don’t actually remove harmful chemicals—they just cover them up. Similarly, many people only address pollution after the renovation is complete, which makes remediation less effective. A better approach is to use specialized treatments during the process, such as formaldehyde scavengers and deodorizers, to ensure the environment meets safety standards.
Lastly, relying on smell to detect pollution is unreliable. Some toxic gases are odorless, and even those that do have a smell may not be detected until levels are dangerously high. The most accurate way to assess indoor air quality is through professional testing with scientific instruments.