MHE153 - Hydroxy propyl methyl cellulose special for grouting

Use of hydroxypropyl methylcellulose

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 methyl cellulose make the slurry not crack after smearing and enhance the strength after hardening.
2. Paint industry: In the paint industry as thickener, dispersants, and stabilizers, in water or organic solvents have good miscibility. As a paint stripping agent.
3. Plastic: As forming release agent, softening agent, lubricant and so on.
4. Other: This product is also widely used in leather, paper products industry, fruit and vegetable preservation and textile industry.

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 MHE153

Item	Required Specifications	Test Result
Appearance	White free flowing power	White free flowing power
Hydroxypropoxy(WT%)	7.0-12.0	8.53
Methoxy(WT%)	28.0-30.0	28.78
Gel Temperature (℃)	58-64	59.5-61.0
Ash Content (%)	≤5	0.70
Moisture Content (%)	≤5	3.77
pH	5.0-8.0	6.48
Partical Size	Mesh 80	100% through
Viscosity (NDJ-1)	400-600	535
Viscosity (Brookfield)	535

2 % solution; Brookfield, on dry basis,20℃

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.

Water retention mechanism: it is generally believed that the water conservation mechanism of cellulose ether is: the oxygen atoms on the hydroxyl and ether bonds on the cellulose ether molecule will synthesize the hydrogen bond with the water molecule, so that the free water becomes the binding water, which plays a good role in water conservation; some people think that The interaction between water molecule and cellulose ether molecule chain allows the water molecule to enter the cellulose ether macromolecular chain and is strongly bound, thus improving the water retention of the slurry. Good water retention can keep the mortar homogeneous, not easy to isolate and get good stirring performance while reducing the mechanical wear, increase mortar spraying machine life.