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Friday 5 August 2011

Melamine Fiber | Properties of Melamine Fiber | Manufacturing Process of Melamine Fiber | Applications of Melamine Fiber | Uses of Melamine Fiber

Melamine fiber is a manufactured fiber in which the fiber-forming substance is a synthetic polymer composed of at least 50% by weight of a cross-linked melamine polymer. Melamine fiber is a cost effective heat resistant fiber based on melamine chemistry, with a 400°F (200°C) continuous operating temperature. Melamine fibers are flame resistant, have outstanding heat/dimensional stability, and are self-extinguishing. EFT’s WF series of melamine fibers have a fiber length distribution tailored for use in wet-laid nonwovens. Typical fiber lengths are in the 1-12mm range, and they show excellent dispersion and formation in wet-laid processes. 

Flame Resistance of Melamine Fiber




Characteristics of Melamine Fiber 
  • Chars without shrinking 
  • Naturally flame retardant 
  • Low thermal conductivity 
  • Non-toxic / No VOC release
  • White and dyeable 
  • Flame resistance and low thermal conductivity 
  • High heat dimensional stability 
  • Processable on standard textile equipment
Typical Properties of Melamine Fiber

Measurement

Units
Typical Values

Color
Ivory white

Average Diameter
µm

15
Average Denier

g/9000m
2.4

Specific Gravity
1.4

Tensile Strength
ksi

36
Tenacity

g/den
2.0

Modulus
Msi
g/den

1.0
55
Elongation at Break

%
11

Moisture Regain (23°C, 65% RH)
%

5
Shrinkage at 200°C (1hr exposure)

%
Limiting Oxygen Index

%
32

Maximum Continuous Operating Temperature
°C

200
Melting Temperature

°C
Does not melt or drip

Resistance to Mildew, Aging, Sunlight
Excellent

Resistance to Solvents, Alkalis
Excellent



Production Process of Melamine Fiber

The production process is proprietary. It is based on a unique melamine chemistry that results in a cross-linked, non-thermoplastic polymer of melamine units joined by methylene and dimethylene ether linkages. In the polymerization reaction, methylol derivatives of melamine react with each other to form a three-dimensional structure. This structure is the basis for the fiber’s heat stability, solvent resistance, and flame resistance.

Applications of Melamine Fiber
  • Mattresses, Home Furnishings / Nonwovens
  • (Compliant with 16CFR1633)
  • Specialty flame resistant papers
  • Firefighting apparel
  • Electrical papers
  • Transmission / friction papers
  • Filtration media
  • Engineered materials / Short-fiber composites
  • Adhesives / Fillers
  • Tire sealants
  • Truck / Rail brakes
Besides Melamine fiber has Potential use which are given below :

Fire Blocking Fabrics: Aircraft seating, fire blockers for upholstered furniture in high-risk occupancies (e.g., to meet California TB 133 requirements)

Protective Clothing: Firefighters’ turnout gear, insulating thermal liners, knit hoods, molten metal splash apparel, heat resistant gloves.

Filter Media: High capacity, high efficiency, high temperature baghouse air filters.



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