Hydroxypropyl methylcellulose-6 common questions and ...

Industrial grade hydroxypropyl methylcellulose for mortar is classified by its viscosity. Generally, the following grades are commonly used (in terms of viscosity).

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Low viscosity: 400, mainly used for self-leveling mortar

Reasons: The viscosity is low, although the water retention is poor, the leveling is good and the mortar has a high density.

Medium and low viscosity: -, mainly used for tile adhesive, caulking agent, anti-cracking mortar, thermal insulation mortar and so on.

Reasons: Good construction, less water, high density of mortar.

Medium viscosity: -, mainly used for putty.

Reason: Good water retention.

High viscosity: -, mainly used for polyphenyl granular thermal insulation mortar powder and glass bead thermal insulation mortar.

Reasons: High consistency, not easy to drop mortar, hanging, improve the construction.

Generally speaking, the higher the viscosity, the better the water retention, so many dry mortar factories consider the cost, using medium viscosity cellulose (-) instead of medium and low viscosity cellulose (-) to reduce the amount of added.

Let&#;s move on to today&#;s theme.

6 Questions on Hydroxypropyl Methyl Cellulose

1  How many types of hydroxypropyl methylcellulose (HPMC) are there, and what is the difference in their use?

HPMC can be divided into fast-dissolving type and hot-dissolving type.

The fast-dissolving type is rapidly dispersed in cold water and disappears into the water. At this time, the liquid has no viscosity because HPMC is only dispersed in water and there is no real dissolution. After about 2 minutes, the viscosity of the liquid gradually increased to form a transparent viscous colloid. It can be used in a wide range of applications, in putty powder and mortar, as well as in liquid glues and coatings.

The hot- dissolving type, in the case of cold water, can be quickly dispersed in hot water and disappear in hot water. When the temperature drops to a certain temperature, the viscosity gradually appears until a transparent viscous colloid is formed. The hot-dissolved type can only be used in putty powder and mortar. In liquid glue and paint, there will be a phenomenon of clumping, which cannot be used.

2 How to judge the quality of hydroxypropyl methylcellulose (HPMC) simply and intuitively?

Click &#; 4 ways to teach you to identify &#;white powder&#; hydroxypropyl methylcellulose residue is not a slag!

3 What is the amount of hydroxypropyl methylcellulose (HPMC) in putty powder?

The amount of HPMC used in practical applications varies depending on the climate, temperature, local ash calcium quality, formula of putty powder, and &#;quality required by customers.&#; In general terms, between 4 kg and 5 kg.

4 What is the viscosity of hydroxypropyl methylcellulose (HPMC)?

Wall putty powder is generally 100,000, the mortar is required to be higher, it is necessary to use 150,000. Moreover, the most important role of HPMC is to retain water, followed by thickening.

In the putty powder, as long as the water retention is good, the viscosity is lower (70,000-80,000), it is also possible. Of course, the viscosity is larger, and the relative water retention is better. When the viscosity exceeds 100,000, the viscosity has an influence on the water retention. Not too big.

5 The application of HPMC in putty powder, what is the cause of foam in putty powder?

In the putty powder, HPMC plays the role of thickening, water retention in the construction. Do not participate in any reaction.

The reason for the bubble: 1, the water is too much. 2, the bottom layer is not dry, just scrape a layer on the top, it is also easy to foam.

6 What is the relationship between viscosity and temperature of HPMC? What should be paid attention to in practical application?

The viscosity of HPMC is inversely proportional to temperature, that is, the viscosity increases with decreasing temperature. The viscosity of a product we usually refer to is the result of a 2% aqueous solution at a temperature of 20 degrees Celsius.

In practical applications, in areas with large temperature differences between summer and winter, it should be noted that it is recommended to use a relatively low viscosity during the winter, which is more conducive to construction. Otherwise, when the temperature is low, the viscosity of cellulose will increase, and when it is scraped, the hand feel will be heavy.

Strong recommend our HPMC 75MP100M

This hydroxypropyl methylcellulose is mainly used in the construction industry &#; dry powder building materials such as water-resistant putty powder, putty paste, steel putty, paint glue, and thermal insulation mortar.

 Four major applications:

1 Water retention

It is a water retaining agent and a retarder for cement mortar to make the mortar pumpable. The water retention of HPMC enables the slurry to not crack too quickly after application and enhances the strength after hardening.

2  Cohesiveness

In the plaster, gypsum, putty powder or other building materials as a binder, improve the spreadability and extend the operation time. Used as a paste tile, marble, plastic decoration, paste enhancer, can also reduce the amount of cement.

3 Thickening

Improve uniformity, easy to apply plaster, improve sag resistance, enhance fluidity, improve pumping capacity, and improve work efficiency. Adjust the consistency of the mortar to form a high-quality surface floating layer, promote the strength of the mortar, improve the lubricity and plasticity, and thus improve the overall construction progress.

4 Customization

DOOLCELL hydroxypropyl methylcellulose can be tailored to customers according to the viscosity and gel time required by customers, thus improving the quality of customers&#; products.

What can DOOLCELL solve for you?

Improve product system viscosity to achieve desired physical properties

Change product fluidity to achieve the desired appearance

Improve product solids and reduce material costs

Prevent paint from sagging, ensuring mechanical properties and stability

       
                                                           

                    ------Hydroxy Propyl Methyl Cellulose------

Hydroxypropyl Methyl Celluloseare types of non-ionic cellulose ether, which are a powder of white to off white color, that 

function as a thickener, binder, film-former, surfactant, protective colloid, lubricant, emulsifier and suspension and water 

retention aid. In addition, there types of cellulose ethers exhibit properties of thermal gelation, metabolic inertness, enzyme resistance, low odor and taste, and PH stability.

Due to the myriad of properties, HPMC is often used to substitute many other additives with lower concentration, making HPMC an incredibly efficient and effective additive in area of adhesives, construction, foods, household products, pharmaceuticals and etc.

PHYSICAL AND CHEMICAL PROPERTIES:

* Particle size: 98.5% passes through 100 mesh; 100% passes through 80 mesh.

* Charring temperature: 280-300ºC.

* Bulk density: 0.25-0.70 g/cm3 (Usually around 0.5 g/cm3 )

* Real specific gravity: 1.26-1.31.

* Browning temperature: 190-200ºC.

* Surface tension: (2% water solution) 42-56dyn.cm.

* Properties: Dissolved in water and some organic solvent such as ethanol. propyl alcohol. ethylene chloride, the water solution is of surface activity. It is a nonionic surface active agent. Gelation temperature is different for different grades. For example, among 60RT Hydroxypropyl Methylcellulose, 60 is gelation temperature, Namely, 2% water solution will form gelation at 60%.

Contact us to discuss your requirements of Hydroxypropyl Methylcellulose (HPMC) For Gypsum Plasters. Our experienced sales team can help you identify the options that best suit your needs.

                                                                                                  ------Application------

Tile Adhesive

Promises the high performance and excellent working efficiencies for attachment of tiles to various substrates. Being slip resistance and better open time is the key to better adhesive requirements.

 

Skim Coat/Wall putty
Skim Coat/Wall putty offer smooth wall surface. It ensures easy workability, long pot life, excellent water retention and more.

 

Home Care and Industrial Cleaner

widely used as a thickener, rheology modifier, emulsifier, and dispersing agent in home care products thanks to pseudoplastic and shear-thinning properties. Home care products can be formulated with HPMC which improve not only the thickening effect of the products but also provides improved solution stability.

                                                                                                   ------Why Choose Us-----

 

Environmentally friendly

Cellulose and its derivatives are produced from natural renewable materials, mainly cotton pulp or wood pulp. We constantly strive to optimize the process flow, and ensure that products and services have the minimum risk to human beings and the environment in their life cycle, while meeting the needs of customers in the best way.

Quality Control

We have adopted DCS automatic control system and installed semi-finished product storage bin to ensure that the whole mixing process is safely closed, including 30 sets of laboratory testing equipment including Brookfield viscometer.

Fast delivery

The product models are complete and the inventory is sufficient. Customers' demands can be met by delivery within 5 days for regular orders and 10 days for orders larger than 50 tons.

 

Laboratory

We have a product application laboratory with high standard preparation to shorten the production process and improve existing products. Besides, we also conduct physical and chemical tests on raw materials and finished products, and constantly develop new products and applications.

                                                                                             ------P

acking & Delivery-----
  

acking & Delivery-----

Standard Packing: In 25kg PP bags inner with PE bags

Big bags or other special packages as required

Store in cool and dry environment, keep away from moisture

Transport as non-danger goods

                                                                                                         ----- Company Profile -----

QINGDAO NEWSANDA INDUSTRY CO.,LTD

is a chemical company integrating research, development, production and sales of cellulose ether products and related services. The enterprise development focuses on the cellulose ether industry, focusing on the research, development, manufacturing and sales of methyl hydroxyethyl cellulose (MHEC), hydroxyethyl cellulose (HEC), hydroxypropyl methylcellulose (HPMC), carboxymethyl cellulose (CMC) and functional cellulose ether. The enterprise adheres to independent research, development The business philosophy of creating high-quality products and brands is to form a complete business system characterized by scientific research and development of cellulose ether, large-scale production, extension of application technology industry chain and technical services.

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