MHK284 - Hydroxy Propyl Methyl Cellulose Special For Wood Putty

Physico-chemical properties

Typical viscosity range of HUAMAO® HPMC products with NDJ-1 rotary viscometer at 20℃ with 2% solution.

Type	Typical viscosity
040	3-9
067	10-20
079	20-30
096	40-60
114	80-120
148	300-800
153	400-600
165	700-900
180	1200-2000
205	3500-5500
222	7000-9000
227	9000-11000
237	13000-17000
244	18000-22000
261	35000-45000
271	55000-65000
277	65000-85000
284	85000-130000
294	130000-180000
301	180000-230000
307	＞230000

*The above specifications have grade that disperses in cold water, such as MHE 227S, ”S” stands for dispersing in cold water

Physico-chemical properties of MHK284

Item	Required Specifications	Test Result
Appearance	White free-flowing power	White free-flowing power
Hydroxypropoxy(WT%)	4.0-12	9.5
Methoxy(WT%)	19-24	21.93
Gel Temperature (℃)	70-90	71.5-73.0
Ash Content (%)	≤5	4.63
Moisture Content (%)	≤5	3.59
pH	5.0-8.0	7.64
Partical Size	Mesh 80	100% through
Viscosity (NDJ-1)	85000-100000	89000
Viscosity (Brookfield)	45000

2 % solution; on dry basis,20℃

Uses

There are many fields of application for hypromellose, including:

• Tile adhesives
• Cement renders
• Gypsum products
• Pharmaceutical
• Paints & coatings
• Food
• Cosmetics
• Detergents & cleaners
• Eye drops
• Contact lenses

Use in construction materials

1. Construction industry: As water and sediment slurry agent, retarder so that mortar with pump-delivery. In plaster, gypsum material, putty powder or other building materials as binders, to improve the smearing and prolong the operation of time. Used as paste tiles, marble, plastic decoration, paste enhancer, but also can reduce the amount of cement. The water retention properties of hydroxypropyl methylcellulose make the slurry not crack after smearing and enhance the strength after hardening.
2. Paint industry: In the paint industry as thickeners, dispersants, and stabilizers, in water or organic solvents have good miscibility. As a paint stripping agent.

Customization

HUAMAO® can customize according to customer demand, production of goods.
1. HUAMAO® can customize the packaging according to the customer's requirements.
2. HUAMAO® can produce HPMC which is the special technical index, according to the customer's demand.

The buildings give us most of the aesthetic feeling is passed through the walls, walls, and ceilings, in the Oriental People's aesthetic view, usually with the wall of the building surface smooth, smooth for the United States, so the appearance of putty this widely used in Asia wall material department.

Putty is a thin layer of plastering materials and is a kind of powdered cellulose, in Asia for more than 30 years of application history, putty for wall decoration and functional aspects has a very important role.

As a coating of three layers: wall, putty layer and coating layer, because of the difference of the deformation coefficient, when the ambient temperature changes, the deformation of the three-layer material is also different, which leads to stress concentration, which requires the putty layer with its own flexibility to take up the task of eliminating stress concentration, so as to resist the grassroots cracking, coating layer peeling. A good performance putty not only enables the wall to achieve smooth and seamless effect can also make various shapes to achieve the concept of designers.

This kind of construction thickness is generally in the thin layer of the millimeter of the construction material can be easily applied, and achieve the function of eliminating stress, cellulose ether for the realization of putty function has played a decisive role:

Cellulose ether provides enough operation time for putty and guarantees the wettability and the coating properties of the putty on the base surface, and the existence of cellulose ether makes the putty easy to be processed on various base surfaces.

Modern people for living environment Green environmental protection requirements more and higher, powder coating as a real realization of the VOC-free wall surface materials timely appearance, compared to the traditional liquid coating, powder coating production and application are very convenient, just add water mixing evenly can be used in its formula, The cellulose ether provides a good suspension effect, a high-efficiency base surface wettability, a coating property and a high-efficiency water retention capability for powder coatings.