Hydroxypropyl Methyl Celluloes (HPMC)

Hydroxypropyl Methyl Celluloes (HPMC) 1.non-anioc surfactant 2.PH stability 3.good wettability,emulsification

Hydroxypropyl Methyl Celluloes (HPMC) 

Synonyms: 2-hydroxypropyl methyl ether Cellulose;

1.Product properties

1).Appearance : It is white or off-white crystalline powder,odorless,non-poisonous,tasteless.

2).Water solubility & thickening ability: It is a water souluble ether,with thermal gelation properties,which has excellent cold-water soluble and hot water insoluble properties, and form transparent and viscous solution.

3).Solubility in organic solvents: It is soluble in some of the organic solvents as well as in the mixture of water and some organic solvents. 4).Salt resistance: It is fairly stable in metal salts or organic electrolyte water solution5).Surface activity: Its water solution is surface active, thus it has emulsifying ability and is relatively stable, it also can be used as the protection colloid.6).Low ash content: It is non-ionic and has very low ash content.7).Water retention property: It has excellent water retention performance. 8).Film-forming property: It has good toughness,flexibility,can form transparent film which is solid, pliant, having good ability of resisting oil and grease,

9).PH stability:It has PH stability, strong enzyme resistance and metabolic inertia,the viscosity of its water solution is stable when PH is 3.0—11.0. 10).It has a good wettability, dispersion, emulsification, thickening, adhesiveness, water-retention and film formation,and impermeability for oil grease.

2. Specifications

		Index
		MC	HPMC
Item		MA	HG	HF	HJ	HK
Gel Temp , oC		50-55	58-64	62-68	68-75	70-90
Methoxy	Content ,%	27.0-32.0	27.0-30.0	28.0-30.0	16.5-20.0	19.0-24.0
	Degree of substitution	1.7-1.9	1.7-1.9	1.8-2.0	1.1-1.6	1.1-1.6
Hydroxyl propoxy	Content ,%		4.0-7.5	7.5-12.0	23.0-32.0	4.0-12.0
	Degree of substitution		0.1-0.2	0.2-0.3	0.7-1.0	0.1-0.3
Water content (Wt %)		≤5.0
Ash content (Wt %)		≤2.0
PH		5.0~8.5
Viscosity (mPa.s)		4-180000

Note: Viscosity values in this chart are of 2% water solutions, 20°C, detected by NDJ viscometer. “S”means surface treatment, that is retarded solution product.

3.Applications :

widely used in construction, construction material, dispersive paint,ink, make papering,

synthetic resin, varnish remover,wallpaper pastes, additive in polymerization  ceramics, textile, leather,daily chemical, petrochemical and electronics industries.

4.Package, transport, storage :

Net weight is 25Kg per bag or according to customized

it should store in room which is ventilate, dry, notice damp proof. When transporting, pay much attention to the rain, sunshine.

Hydroxypropyl Methyl Celluloes (HPMC)