Functional additives to improve the durability of Roofing Tissue

1. Antioxidants: Delay material aging and improve durability
Mechanism of action
The main function of antioxidants is to prevent the material from oxidative degradation under long-term exposure to air, humidity and light, thereby reducing mechanical properties and service life. Under high temperature and high humidity environment, Roofing Tissue that has not been treated with antioxidants is prone to embrittlement, fracture and other problems.

Common antioxidants
Phenolic antioxidants (such as BHT, 2,6-di-tert-butyl-p-cresol): can effectively capture free radicals and delay material degradation.
Phosphite antioxidants: play a stabilizing role in high temperature environments to prevent high temperature oxidation.
Hindered amine light stabilizers (HALS): not only provide antioxidant effects, but also enhance UV resistance, especially suitable for Roofing Tissue used outdoors.
Optimization plan
Adding an appropriate amount of antioxidants during the production process of Roofing Tissue can significantly improve weather resistance, so that it can still maintain strength and stability under long-term outdoor exposure.

2. Anti-ultraviolet (UV) additives: prevent photoaging and improve outdoor durability
Mechanism of action
Ultraviolet rays are one of the main causes of aging of Roofing Tissue materials. Materials exposed to sunlight for a long time will break their molecular chains, leading to embrittlement, powdering and even structural damage. Anti-UV additives are essential to enhance the durability of Roofing Tissue.

Common anti-UV additives
UV absorbers (such as benzophenone, benzotriazole compounds): can absorb ultraviolet rays and convert them into harmless heat energy, thereby reducing damage to Roofing Tissue.
Light stabilizers (such as hindered amine HALS): can react with free radicals caused by ultraviolet rays to prevent material degradation.
Nano titanium dioxide (TiO₂) or nano zinc oxide (ZnO): Nanoparticles can effectively block ultraviolet rays while enhancing the mechanical strength and weather resistance of the material.
Optimization solution
The combination of UV stabilizers with other protective measures (such as surface coatings) can significantly improve the durability of Roofing Tissue in long-term outdoor use.

3. Anti-mildew and anti-bacterial additives: prevent microbial erosion and extend service life
Mechanism of action
In a humid environment, microorganisms, molds and algae can easily grow on the surface of Roofing Tissue, causing damage to the material structure and affecting the waterproof performance and mechanical strength. Adding antibacterial and anti-mildew agents can effectively prevent microbial erosion and improve product durability.

Common anti-mildew and anti-bacterial additives
Nanosilver (Ag⁺): Nanosilver ions can effectively destroy bacterial cell walls and prevent the growth of mold and algae.
Zinc oxide (ZnO): It has both antibacterial and anti-ultraviolet effects and can effectively extend the service life of Roofing Tissue.
Organic antimicrobial agents (such as quaternary ammonium salts, imidazoles): Broad-spectrum antibacterial, prevent mold erosion.
Optimization plan
For Roofing Tissue used in humid climates or rainy areas, it is recommended to use antibacterial and anti-mildew additives, and at the same time use waterproof coatings to achieve better protection.

4. Flame retardants: Improve fire safety
Mechanism of action
In the construction industry, fire safety is crucial. Ordinary roofing tissue is easy to burn under high temperature or fire environment, and flame retardants need to be added to improve the fire resistance of the material and reduce fire hazards.

Common flame retardant additives
Inorganic flame retardants (such as aluminum hydroxide Al(OH)₃, magnesium hydroxide Mg(OH)₂): decompose when exposed to high temperature, release water vapor, and reduce the risk of fire.
Phosphorus flame retardants (such as red phosphorus, phosphate esters): form a protective layer during combustion to prevent the spread of flames.
Bromine flame retardants (such as decabromodiphenyl ether): can release free radicals during combustion and inhibit the combustion process, but some products may be restricted by environmental regulations.
Optimization plan
For building roofing materials used in high temperature or fire protection requirements, it is recommended to use environmentally friendly halogen-free flame retardants, such as phosphorus-nitrogen composite flame retardants, to ensure the safety and durability of the material.

5. Elasticity enhancer: improve flexibility and reduce cracking risk
Action mechanism
Roofing tissue needs to have a certain degree of flexibility to adapt to the deformation and thermal expansion and contraction of the roof structure. If the material is too brittle, it may crack under temperature changes or external forces, affecting its waterproof performance. Adding elastic enhancers can improve the flexibility of the material and improve its impact resistance.

Common elastic enhancers
Thermoplastic elastomers (such as SBS, TPU, TPEE): can improve the elasticity and tear resistance of the material, making it more adaptable to roof deformation.
Plasticizers (such as DOP, DOA): Appropriate use can improve the softness of the material, but environmental protection needs to be ensured.
Nanocellulose: It has both high strength and high flexibility, which can improve weather resistance.
Optimization plan
Adding an appropriate amount of elastic enhancer to the formula design of Roofing Tissue can effectively prevent cracking and improve the stability of long-term use, especially suitable for areas with drastic climate changes.