Flame-retardant fiber sheet and formed article thereof
A fiber sheet, flame retardant technology, which is applied in the field of flame retardant fiber sheet and its molded products, can solve the problems of high price and inability to obtain flame retardancy, and achieve the effect of high water resistance and durable flame retardancy
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0115] By mixing 80% by mass of polyester fiber (denier: 12.5dtex, fiber length: 55mm) and 20% by mass of low-melting polyester fiber (softening point: 110°C, finer: 15dtex, fiber length: 50mm) The web of fibers is needle-punched to make a weight per unit area of 120g / m 2 fiber sheet. Next, after coating the phenol-formaldehyde initial condensate (aqueous solution of 45% by mass of solid content) as a synthetic resin binder with a coating roller so as to reach a coating amount of 30% by mass with respect to the fiber sheet, thereafter Sprinkle ammonium polyphosphate (particle size: 50-75 μm) with an average degree of polymerization of n=10, 30, and 40 on the back surface of the fiber sheet so as to reach 20% by mass, and dry it at a temperature of 130-140° C. 3 minutes. A flame-retardant fiber sheet is produced by precuring the fiber sheet while fixing the ammonium polyphosphate attached to the back of the fiber sheet. The resulting flame-retardant fiber sheet was then he...
Embodiment 2
[0119] Raised cotton is obtained by carding the regenerated fiber scraps composed of polyester or cotton into cotton form through a carding machine. Next, 50 parts by mass of novolac resin powder (particle diameter: 20 to 30 μm, melting point: 78 to 85° C.) and 50 A mixture of ammonium polyphosphate (particle size: 50-75 μm) with an average degree of polymerization of n=10, 30, and 40 in parts by mass, and then carded and mixed with the fluffed cotton to form long staples, then hot air at 150°C Pre-cured both sides of the plush to obtain a thickness of 15mm and a weight per unit area of 800g / m 2 flame retardant fiber sheet. Finally, the obtained flame-retardant fiber sheet was hot-press molded at a temperature of 200° C. for 60 seconds to obtain a molded product with a thickness of 5 mm.
Embodiment 3
[0123] Raised cotton is obtained by carding the regenerated fiber scraps composed of polyester or cotton into cotton form through a carding machine. Next, 50 parts by mass of novolak resin powder (particle diameter: 20 to 30 μm, melting point: 78 to 85° C.) and 5 Parts by mass of expanded graphite (particle size: 70-80 μm, expansion start temperature: 300°C, expansion rate: 300ml / g), and 45 parts by mass of ammonium polyphosphate (particles) with an average degree of polymerization of n=10, 30, 40 Diameter: 50-75μm), and then carded and mixed with the fluffed cotton to form a long pile, and the two sides of the long pile were pre-cured with hot air at 150°C to obtain a thickness of 15mm and a weight per unit area of 600g / m 2 flame retardant fiber sheet. Finally, the obtained flame-retardant fiber sheet was hot-press molded at a temperature of 200° C. for 60 seconds to obtain a molded product with a thickness of 5 mm.
PUM
| Property | Measurement | Unit |
|---|---|---|
| melting point | aaaaa | aaaaa |
| particle diameter | aaaaa | aaaaa |
| diameter | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More