Aluminum hydroxide

Aluminum hydroxide (also known as: hydrated alumina, abbreviated as: ATH) molecular formula: AL(OH)3 or AL2 · 3H2O molecular weight: 78 aluminum hydroxide is the largest and most widely used inorganic flame retardant additives. Flame retardant principle is endothermic decomposition into alumina and water, decomposition products are safe, non-toxic, non-corrosive substances, the endothermic reaction in the combustion process of the polymer to absorb a large amount of heat, so as to protect the polymer from rapid decomposition, delay the formation of flammable by-products, the resulting water vapor to replace oxygen, play a similar inert The role of the gas; the formation of a protective layer of alumina and carbonized products on the surface of the polymer to further inhibit combustion, this protective layer can also reduce the smoke density by adsorbing soot particles.

Key words:

Aluminum hydroxide

Classification:

Inorganic flame retardant

Product Description

　　Aluminum hydroxide (also known as hydrated alumina, abbreviated as ATH)
Molecular formula: AL(OH)3 or AL2 · 3H2O Molecular weight: 78
　　1. Technical indicators

Project Name		Indicators
Project Name		AH-1	AH-5	AH-8	AH-14	AH-100
chemical composition	AL(OH)3%≥	99.6	99.6	99.6	99.6	99.6
	SiO2 % ≤	0.02	0.02	0.02	0.02	0.02
	Fe2O3 % ≤	0.00	0.02	0.02	0.02	0.02
	Na2O % ≤	0.40	0.3	0.3	0.3	0.3
	L.O.I ≤	35	35	35	35	35
Attached alkali% ≤		0.03	0.015	0.007	0.015	0.2
Water% ≤		0.3	0.3	0.3	0.3	0.1
D50(μm)		1-2	4-6	7-9	10-12	80-120
Whiteness% ≥		98	97	97	96	90
Oil absorption ml/100g ≤		42	32	24	23	----
Refractive rate		1.57
CAS No.		21645-51-2

2.Flame retardant mechanism:

Aluminum hydroxide is the largest and most widely used inorganic flame retardant additives. Flame retardant principle is endothermic decomposition into alumina and water,The decomposition products are safe, non-toxic and non-corrosive substances, and the endothermic reaction absorbs a large amount of heat during the combustion of the polymer, thus preservingThe protective polymer avoids its rapid decomposition, delays the formation of flammable by-products, and the resulting water vapor replaces oxygen, playing a similar inert role.The role of sexual gas; the formation of a protective layer of alumina and carbonized products on the surface of the polymer, further inhibiting combustion, this layer of protectionThe layer can also reduce smoke density by adsorbing soot particles.

3. Purpose
Aluminum hydroxide is an inorganic flame retardant additive with large amount and wide application. Aluminum hydroxide as a flame retardant can not only flame retardant, but also can prevent smoke, do not produce dripping, do not produce toxic gases, therefore, access to a wider range of applications, the use is also increasing year by year. Scope of use: thermosetting plastics, thermoplastics, synthetic rubber, coatings and building materials and other industries.
4. Packaging, transportation and storage
Packing: inner plastic and outer woven coated bags, each bag has a net weight of 25kg or 40kg.
Transportation: This product is a non-hazardous product. It is protected from moisture, rain and packaging damage during transportation.
Storage: Store in dry and ventilated warehouse.

Zinc Borate

Modified magnesium hydroxide

Zinc Borate

Modified magnesium hydroxide

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Antimony trioxide (also referred to as antimony oxide, commonly known as antimony white) molecular formula: Sb2O3 molecular weight: 291.5 Antimony trioxide is one of the inorganic flame retardants that have been used for a long time. It is mainly used as a flame retardant synergist to cooperate with halogen-containing compounds. It plays a flame retardant role in their thermal decomposition process and can replace some halogen compounds. It can be applied to plastics, rubber, chemical fiber, enamel, pigment, paint, glass, glass, electronics and other industries.

Antimony trioxide

3.5 zinc borate water molecular formula: 2ZnO • 3B2O3 • 3.5H2O molecular weight: 434.51. Zinc borate is an inorganic additive flame retardant, which is characterized by good thermal stability, I .e. flame retardant and smoke elimination. It can replace antimony trioxide in some products and can also be used in conjunction with other inorganic flame retardants with better effect. Anhydrous zinc borate molecular structure formula is 2ZnO · 3B2O3, white powder, excellent fluidity, temperature resistance to 600 ℃, low heat release rate. Very low water solubility, no migration, and excellent charring performance, can be compounded with other additives into halogen-free expansion flame retardant, can be used as a high processing temperature polymer (polyether ketone, polyalum, polyester, nylon, fluorine-containing polymer, etc.) excellent flame retardant and smoke suppression agent.

Zinc Borate

Tris (2-chloroethyl) phosphate abbreviation: TCEP molecular formula: C 6 H 12O 4 CL 3 P molecular weight: 285.5 Tris (2-chloropropyl) phosphate abbreviation: TCPP molecular formula: C 9H 18C l3P O 4 molecular weight: 327.56

TCEP TCPP

Product Name: Aluminum Hydroxide CX-GL-B1 Description: Aluminum Hydroxide Flame Retardant with Surface Modification Treatment Modified magnesium hydroxide see product display (modified magnesium hydroxide)