High temperature thermo-acoustic barrier material with low smoke and odor
A thermal barrier material for use in shielding components of a vehicle from hot exhaust surfaces includes 35 to 53% of a plurality of clays by weight and a remainder including magnesium silicate, alumina trihydrate, alumino-borosilicate glass, rock wool, basalt fiber, acrylamide copolymer coagulant, acrylic latex, fatty alcohol alkoxylate, or anionic polyacrylamide. A sample of the thermal barrier material, when exposed to a temperature of 400° Celsius, produces smoke having a density less than 5 g/cm 3 as measured according to the ISO 5659-2:2006(E) standard.
1. A thermal barrier material for use in shielding components of a vehicle from hot surfaces comprising:
35 to 53% of a plurality of clays by weight; and
a remainder comprising one or more of:
magnesium silicate, alumina trihydrate, alumino-borosilicate glass, rock wool, basalt fiber, acrylamide copolymer coagulant, acrylic latex, fatty alcohol alkoxylate, or anionic polyacrylamide, wherein
a sample of the thermal barrier material, when exposed to a temperature of 400° Celsius, produces smoke having a density less than 5 g/cm 3 as measured according to the ISO 5659-2:2006(E) standard, and
organic components of the thermal barrier material are limited to between 1.11% and 7.55% by weight.
2. The thermal barrier material of claim 1 , wherein the remainder comprises:
8 to 23% of magnesium silicate by weight;
17 to 43% of alumina trihydrate by weight;
2 to 6% of alumino-borosilicate glass by weight;
6 to 8.5 of rock wool by weight;
1 to 7% of basalt fiber by weight;
0.05 to 1.5% of, acrylamide copolymer coagulant by weight;
0.05 to 1.2% of acrylic latex by weight;
0.01 to 0.05% of fatty alcohol alkoxylate by weight; and
0.5 to 1.5% of anionic polyacrylamide by weight.
3. A thermal barrier material for use in shielding components of a vehicle from hot surfaces comprising:
26% to 42% of a plurality of clays by weight; and
a remainder comprising one or more of:
magnesium silicate, alumina trihydrate, alumino-borosilicate glass, rock wool, basalt fiber, acrylamide copolymer coagulant, acrylic latex, fatty alcohol alkoxylate, or anionic polyacrylamide, wherein
a sample of the thermal barrier material, when exposed to a temperature of 400° Celsius, produces smoke having a density less than 5 g/cm 3 as measured according to the ISO 5659-2:2006(E) standard, and
organic components of the thermal barrier material are limited to between 1.11% and 7.55% by weight.
4. The thermal barrier material of claim 3 , wherein the remainder comprises:
8 to 23% of magnesium silicate by weight;
17 to 43% of alumina trihydrate by weight;
2 to 6% of alumino-borosilicate glass by weight;
6 to 8.5 of rock wool by weight;
1 to 7% of basalt fiber by weight;
0.05 to 1.5% of, acrylamide copolymer coagulant by weight;
0.05 to 1.2% of acrylic latex by weight;
0.01 to 0.05% of fatty alcohol alkoxylate by weight; and
0.5 to 1.5% of anionic polyacrylamide by weight.