Product introduction
Aluminum hydroxide is a white powder, which has the characteristics of non-toxic, tasteless, good dispersibility, high whiteness and low iron content. Aluminum hydroxide has three functions: flame retardancy, smoke elimination and filling. It has no two times pollution during combustion. It does not produce toxic and corrosive gas when it burns. It also absorbs and releases water vapor. It has flame retardant and self extinguishing performance. It has good dispersion and is easy to produce synergistic effect with other additives, and has antistatic function. It can enhance the strength and toughness of polymers.
The active ATH is halogen-free, smoke suppression, non corrosion and high thermal stability flame retardant, white liquid powder, insoluble in water, acid or alkali decomposition. Activation through special processing of ATH, EVA, LDPE, LLDPE used for flame retardant cable material (coating layer and the insulating layer), also used for flame retardant PP and thermosetting polymers (such as unsaturated polyester, epoxy resin), flame retardant filler made of synthetic rubber and other polymeric materials, it can greatly improve the resistance and flame retardant products arc resistance, traces of.
Index name index index name index
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become
Al (OH) 3% attached water more than 99.6% = 0.3
Na 2 O% less than 0.15 the average particle size of M is less than or equal to 1-10
Fe 2 O 3% = 0.02 (whiteness degree = 95)
SiO 2% = 0.02 dense packing density g/cm3 0.45-1.4
PH (30% material 25 C) 9-10 absorption ml/100g 48
The proportion of true (g/cm 3) 2.42 surface area (2 /g m) 5


Performance comparison of modified and unmodified aluminum hydroxide
Resin
Unsaturated polyunsaturated polyester epoxy resin
Unmodified ATH modified ATH unmodified ATH modified ATH
match
Specific resin
glass fibre
ATH
SiO2 250
One hundred and sixty
600250
One hundred and sixty
800100
Curing agent 30
One hundred and forty
60100
Curing agent 30
One hundred and forty
Sixty
matter
reason
machine
Mechanical
nature
Bending strength Mpa
Impact strength Kj/m2
Dielectric strength KV/mm
Permittivity
Arc resistance (s)
Flame retardant grade
(1.26 seconds) of solder resistance
Twenty-three point four
Fifteen point nine
Four point three one
One hundred and ninety-one
V-O
28
Twenty-five point eight
Seventeen
Four point three two
Two hundred and thirty-two
V-O
0.96
-
-
Four point one one
-
V-1
169 (260 C)
42 (280 C) 0.98
-
-
Four point two three
-
V-O
300 (260 C)
120 (280 C)


Principle of flame retardant:
Aluminum hydroxide is decomposed by heat dehydration, and the amount of heat absorbs up to 1967.2J/kg, which can effectively inhibit the heating and thermal degradation of the polymer. A large amount of water vapor can be released by ATH decomposition to dilute the combustible gas and inhibit the spread of combustion. The tightly packed double layer crystal structure of aluminum hydroxide can capture the hydroxyl radical that triggering the combustion of the polymer and cut off the chain reaction. After ATH dehydration, high temperature resistant and dense Al2O3 protective film is formed on the surface of the polymer to prevent the air from spreading. High temperature resistant and dense Al2O3 protection film can also promote the carbonization of polymer, adsorb solid particles and inhibit the production of thick smoke.


Application areas:
1, aluminum hydroxide can prevent smoking, do not produce drops, do not produce toxic gases, easily decompose in strong alkali and strong acid solution, decompose and dehydrate into alumina by heating. It is suitable for molding materials, rubber and plastic foams, thermosetting plastics, thermoplastics, synthetic rubber, coatings, FRP, resins, electronics, ceramics, glass products, etc.
2, the active aluminum hydroxide is modified by many additives and coupling agents. It has high fineness, narrow particle size distribution, good flame-retardant effect, high whiteness and low bulk density, and can increase the addition amount.
3、氢氧化铝可做为各种铝化物原料、塑料、橡胶等易燃材料的阻燃添加剂、人造大理石填料、造纸、表面色料、涂料、牙膏基材、氟化盐、人造玛瑙、玻璃马赛克、建筑材料速凝填充剂、SMCBMC模塑材料填充、橡塑材料填充等用作铜板纸表面涂层和阻燃纸的填充料。 The surface of the paper is smooth and glossy, and it has a strong absorbability to the ink.
Binding and processing of aluminum hydroxide 4, can improve the activity of aluminum hydroxide and resin, flame retardant and filling has double properties, thus adding this product in plastic, rubber and other advanced composite materials, not only make products with flame retardant and smoke suppression effect, and anti leakage, arc resistance, abrasion resistance enhancement. It can be widely used in electrical LDPE cable material, rubber, wire and cable insulation layer, sheath layer, BMC molding material, rubber and plastic material, thermal insulation material, conveyor belt, copper clad laminate, base material and so on.


Packing：
Internal plastic package bags, each bag net weight 25Kg, after use in time seal.