Shanghai ShiCi International Trading Co., LTD.
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    The company mainly produces and sells "HUAMAO" as well as "SANWEI" two major brand products. Products covered three series: One is polyvinyl alcohol (PVA) series of products with an annual capacity of 100,000 tons; the second is dispersible polymer powder can be 85,000 tons per year; the last is the cellulose products annual capacity of 60,000tons. 
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    Shanghai shici International Trading Co.Ltd is a professional company which contain enterprise sales, warehousing, distribution, technical services. Shanghai Shici in view of the new market situation and customer demand, the establishment of raw material supply as the core, formulation research, technical support, such as supporting the "integration, one-stop" service marketing model. 
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    Our polyvinyl alcohol (PVA) series of products, dispersible polymer powder, hydroxy propyl methyl cellulose and other related products are well applied in many fields such as paper, adhesives and emulsion, textiles, barrier films, tec,.
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MHK284S - Cold Soluble Hydroxy Propyl Methyl Cellulose
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MHK284S - Cold Soluble Hydroxy Propyl Methyl Cellulose

Hypromellose (INN), short for hydroxypropyl methylcellulose (HPMC), is a semisynthetic, inert, viscoelastic polymer used as eye drops, as well as an excipient and controlled-delivery component in oral medicaments, found in a variety of commercial products.

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 MHK284S

Item

Required Specifications

Test Result

Appearance

White free-flowing power

White free-flowing power

hydroxypropoxy(WT%)

4.0-12

9.25

Methoxy(WT%)

19-24

22.03

Gel Temperature (℃)

70-90

72.0-73.5

Ash Content (%)

≤5

3.57

Moisture Content (%)

≤5

4.20

pH

5.0-8.0

7.05

Partical Size

Mesh 80

100% through

Viscosity (NDJ-1)

85000-100000

96000

Viscosity (Brookfield)

45000

2 % solution; on dry basis,20℃

Viscosity test methods

Because hypromellose solution is a non-Newtonian solution and exhibits pseudoplastic, more specifically, thixotropic behavior, various test methods are available, and the results of different methods and viscosimeters do not necessarily correspond to each other. Also, due to viscometer acceptable ranges of error, the viscosity is typically given as a mean, or as a range. Typical viscosity test will specify the following:
  • Solution concentration (1%, 2%, 1.9% bone dry, etc.)
  • Viscometer (RheoSense m-VROC and microVISC, Brookfield LV or RV, Höppler falling ball, Haake Rotovisco, etc.)
  • Viscometer spindle number (1 ~ 4 for Brookfield LV, 1 ~ 7 for Brookfield RV, etc.)
Solution Temperature (20 °C, 25 °C, etc.)

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.

As the most important part of the commercialization of domestic mortar products, China's premixed mortar industry has gradually transited from the market to the rapid growth period under the dual impetus of market promotion and policy support. Whether it is for new buildings or renovation of buildings, ready-mixed mortar is an essential ingredient. The use of premixed mortar is an effective means to improve engineering quality and civilized construction level, and it is an important measure to make full use of industrial waste, which is sustainable development and development of circular economy, and can greatly reduce construction rate of two times, improve construction mechanization degree and construction efficiency, and reduce labor intensity. While increasing the comfort of people's living environment, reduce the total energy consumption of buildings.

In the process of commercialization of ready-mixed mortar, the cellulose ether plays a milestone role, the rational application of cellulose ether makes the mechanized construction of the premixed mortar possible, and the cellulose ether products with good performance can improve the construction performance, spraying and pumping performance of mortar. Its thickening ability can improve wetting ability of wet mortar on the base surface. The bond strength, adjustable time and dry shrinkage ability of mortar are improved so that the hydration of cement is more complete and the structural strength is improved.

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