Introduction
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Redispersible polymer powder is an essential component in the construction industry, particularly in mortar applications. With a wide range of options available in the market, it can be daunting to select the ideal polymer powder that suits your project requirements. In this blog post, we will guide you how to choose the right redispersible polymer powder for mortar. And provide insights on how to determine whether a polymer powder is flexible or rigid.
1. Assessing Flexibility or Rigidity of Polymer Powder
Determining the flexibility or rigidity of a redispersible polymer powder for mortar is crucial. Here's how you can judge whether a polymer powder is flexible or rigid:
1. Elasticity
A flexible polymer powder will exhibit good elasticity, allowing the mortar to withstand slight movement without cracking. A rigid polymer powder lacks elasticity and may lead to reduced flexibility in the mortar.
Elasticity is a key characteristic in determining the flexibility of a redispersible polymer powder for mortar. To assess the elasticity, consider the following:
Tackiness: A flexible polymer powder will exhibit some degree of tackiness when touched, indicating its ability to deform without cracking. In contrast, a rigid polymer powder will feel dry and lacking in tackiness.
Stretchability: A flexible polymer powder can be easily stretched, showing its capacity to accommodate movement without breaking. This can be evaluated by gently pulling or stretching the polymer powder, noting the degree of elongation before it tears.
Recovery: After stretching a polymer powder, observe how well it returns to its original shape. A flexible polymer powder will have good recovery, bouncing back to its original form. Conversely, a rigid polymer powder will show minimal elasticity and struggle to regain its shape.
2. Tensile strength
A flexible polymer powder will have relatively lower tensile strength, enabling the mortar to accommodate slight deformations. In contrast, a rigid polymer powder will have higher tensile strength, making the mortar more resistant to deformations.
Tensile strength is an essential property to consider when judging the flexibility or rigidity of a redispersible polymer powder for mortar. Follow these steps to assess tensile strength:
Preparation: Prepare a test specimen by mixing the polymer powder with water according to the recommended guidelines. Allow the mixture to dry and solidify.
Testing: Use a tensile testing machine to apply forces to the specimen until it breaks. A flexible polymer powder will exhibit lower tensile strength, indicating its ability to deform under stress. A
rigid polymer powder will demonstrate higher tensile strength, reflecting its resistance to deformations.
3. Film Formation
Flexible polymer powders tend to form thin, deformable films, while rigid polymer powders form thicker and less deformable films. These films influence the overall flexibility or rigidity of the mortar.
The film formed by a redispersible polymer powder is another indicator of flexibility or rigidity. Consider the following aspects when assessing film formation of redispersible polymer powder for mortar:
Thickness: A flexible polymer powder will form a thin film that allows for some deformations without cracking. On the other hand, a rigid polymer powder will create a thicker and less flexible film. Compare the thickness of films formed by different polymer powders to determine their flexibility.
Appearance: A flexible polymer powder will produce a film that appears smooth and pliable. It will not show signs of stiffness or brittleness. In contrast, a rigid polymer powder may create a film with rough or brittle characteristics.
Judging the flexibility or rigidity of a redispersible polymer powder for mortar is crucial. By evaluating elasticity, film formation attributes, and tensile strength, you can gain valuable insights and make an informed decision. Keep in mind that the flexibility or rigidity of the polymer powder will directly impact the performance and durability of mortar.
2. Factors to Consider when Choosing Redospersible Polymer Powder for mortar
Now that you understand how to assess the flexibility or rigidity of RDP powder. Let's discuss the factors when selecting the right redispersible polymer powder for mortar:
Application: Depending on the specific application of the mortar, such as external rendering, tile adhesives, or self-leveling compounds, certain polymer powders may be more suitable. Consider the requirements of your project and choose a polymer powder that matches the intended application.
Compatibility: Ensure the compatibility of the polymer powder with other constituents of the mortar system, such as cement, aggregates, and chemical admixtures. Compatibility issues may lead to reduced performance and even failure of the mortar.
Incompatibility can lead to issues such as poor dispersion, reduced performance, and decreased overall quality of the end product.
Performance: Evaluate the performance attributes offered by different polymer powders, such as improved workability, water resistance, impact resistance, and improved adhesion. Select a polymer powder that aligns with the desired performance characteristics of your mortar.
Some key performance factors to consider include:
Workability: Look for redispersible polymer powder for mortar that enhance the workability of your product, making it easier to mix, spread, and apply. Good workability allows for better control and smooth application.
Water Resistance: If your application will be exposed to moisture or water, choose a redispersible polymer powder for mortar that provides excellent water resistance. This will help prevent degradation, cracking, and other water-related damages.
Adhesion: Consider the adhesion properties of the polymer powder. A good polymer powder should improve the bonding strength between different materials, such as concrete, tiles, or wood, ensuring long-lasting adhesion.
Impact Resistance: For applications that are prone to impact or mechanical stress, select a polymer powder with high impact resistance. This will provide added durability and protection against damage.
Glass transition temperature&#;Amorphous polymers have three mechanical states, which are glassy, highly elastic, and viscous.
When the temperature is low, the material is a rigid solid, similar to glass, and only a very small deformation will occur under the action of external force, this state is the glass state
When the temperature continues to rise to a certain range, the deformation of the material increases significantly, and the deformation is relatively stable in the subsequent certain temperature range. This state is the high elastic state.
As the temperature continues to rise, the amount of deformation increases gradually, and the material gradually becomes a viscous fluid. At this time, the deformation cannot be recovered, and this state is a viscous fluid state.
We usually refer to the transition between the glassy state and the high elastic state as the glass transition, and the corresponding transition temperature is the glass transition temperature, or glass transition temperature.
If the glass transition temperature is above 0 degrees, the adhesion is strong, but the flexibility is not good. If the glass transition temperature is below 0 degrees, the flexibility is good, and the adhesion is not good. Now the lowest glass transition temperature on the market should be -15 &#;, and the highest is generally Domestic products are all around 5°C, and better brands generally control it at around 3°C. Therefore, if you want to make adhesive mortar, you should choose latex powder with strong adhesion, and you should choose latex powder with good flexibility for plastering mortar.
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Manufacturer Reputation: If you want good redispersibler polymer powder for mortar, Consider the reputation and history of the polymer powder manufacturer. Opt for reliable and well-established manufacturers who have a proven track record in supplying high-quality polymer powders. Consider factors such as product certifications, technical support, and customer reviews before making a final decision. Research their certifications, product testing methods, and customer reviews to ensure they meet industry standards. Additionally, consider their technical support and customer service, as this can be valuable if you have questions or need assistance during your project.
Conclusion
Choosing the right redispersible polymer powder for mortar applications is a critical step to ensure the long-term durability and performance of your construction projects. By assessing the flexibility or rigidity of the polymer powder, considering factors such as application, compatibility, performance, and manufacturer reputation, you can make an informed decision. Remember, selecting the right polymer powder will contribute significantly to the overall quality and success of your mortar application.
Melacoll&#;-06-10 11:40
When buying cellulose ether HPMC HEMC HEC and redispersible polymer powder, you may have a lot of questions, such as product quality, annual production capacity, delivery time, payment term, samples, shifts, etc... Mikem provides customers with cellulose ether and redispersible polymer powder.
So the annual capacity of our cellulose ether is 50 000 per year. And for RDP, it is about 12 000 per year.
Well, our factory with 13 horizontal reactors and three vertical reactors. The output of each reactor is about seven tons per time per hour. So with all the reactors in operation, we have a daily output of about 200 tons per day. But actually, in a practice, it is 130 tons. So on average, it is about 55 tons of each grade of HEMC, HPMC, and HEC. And for RDP, we have a daily output of an estimated 20 tons.
For more information about Mikem chemical brands and their production capacity, please click here.
So we will start stocking our production, stocking our inventory after we receive your 30% prepayment.
And to contact the shipping company to book a proper vessel for you. It has an estimated departure time of two weeks after your payment. so you can get your products as soon as possible. Right. The production time of our factory is about 7 days.
We only need 7 days to prepare all your cargo and deliver it to the Qingdao port.
The ash content of our RDP MIKRANT ET is, for example, about 18% ash content.
What does it mean? It means that during the production process of VAE RDP, we need to put it into an addict named Calcium silicate. Calcium silicate is a very necessary step in the VAE RDP production process.
The ash content of 18% is among the middle-class to the upper class on the quality in the Chinese market.
Even Wacker VINNAPAS RDP will reach 12% ash in the addition of this agent. Our RDP MIKRANT ET products include three different series according to different levels. If you request for ash content of less than 12%, we may recommend to you the MIKRANT ET. Its counterpart is Wacker VINNAPAS N with an ash content of 12%.
So our payment term is 30% T/T payment as a deposit. And 70% balance T/T against the B/L copy or L/C at sight.
Well, we are investing in two Chinese factories for our Exclusive OEM manufacturing. it makes us more competitive with United States manufacturing standards and China's local economic raw materials or labor resources. Like WACKER, they also have two or three local Chinese OEM manufacturing plants under their brand's name.
One more independent MIKRTANT RDP factory is under construction. and it will be put into mass production this September .
Well, how ensure our quality? Our happy customers say everything. The customers will establish a long-term relationship with us. and they always. And our repurchase rate is very high. Plus the supervisor from the United States headquarters will give QC inspectors to supervise our production line. We have had a quality prosecutor who resident long in china. And they will be very strict on every level.
But recently considering the situation of the pandemic in Chinese markets, all the quality inspections are carried out by local reports. And we will conduct online meetings to report our batch quality certificate to our headquarters. But there still was no slack. we never slack. We will send the samples randomly as an inspection for them. If it fails, we will be required by our headquarters to limit our output.
So don't worry about the qualities. we are the best.
Of course, we welcome your business trip or business building trip for your from your side. And we expect that we are also willing to provide free samples for your testing.
If you have worked with, you know, the third party in china, welcome.
Yeah, we provide free samples ( 200g to 800g) for your lab texting.
And after that, we will be appreciated it if you can give us some feedback so that we can make better improvements and supply better products.
Well, to get the sample first, you need to find out your sales team in MIKEM Chemical (www.mikem.com). And you can send an inquiry asking for a sample.
You can detail how many samples you need and what is your target industry and which grade you need. You can tell all this information to our sales group. And we will have a sales group to contact you within 20 hours, yeah, within, sorry, 12 hours. And after that, you can get your sample. We will send the sample through FedEx or DHL. You will get the sample in estimated 20 days next.
Okay, for C1 standard concrete, we suggest you add 2 kg to 2.5 kg of HPMC per ton.
And for C2 standard concrete, our suggestion is to add more volume, say, 2.5kg to 3kg.
HPMC Dosage (KG) C1 2-2.5 C2 2.5 - 3Well, because MELACOLL and the rest of the cellulose ether suppliers adopt different production processes and different raw materials.
First, let's talk about the HPMC MHEC HEC raw material.
Walocel or the product from Lotte or Ashland or DOW, use the fine wood pulp. It determines that their products might have better water retention.
Well, MELACOLL HPMC production process, we're using refined cotton. this will determine that our products will have better workability and thicking property. The thick property is twice than that of the ordinary products in the market. So the intention we are designing our product is like this, say, high viscosity products for saving our customers' budget. Because of the higher viscosity, the dosage, for example, for tile adhesive, is lower than the normal products in the market.
So with our high-viscosity product, in some way, you can save your dosage, so you need less volume of our products. So in some way, you can save your budget.
Before load cellulose ether and RDP, first, we ensure our quality is the same as the samples we have sent to you for Lab testing, and we're open here. We're open to any inspection audition from your side. I mean if you have any good relationship with a third party from another plant or companies in China, you can send them to our plant. And they can involve in the loading during the day of loading. And they can actually involve in it and they can take some samples. They can send to the lab anything.
We also have a whole after-sale and QC group to make sure that our product is according to the standard.
Also, we have established companies seeking long-term relationships with our customers. So it is very important that we will value our reputation and the good procurement experiences from our customers like you.
We will keep on dozens of inventory in the peak season like in the middle of the year March, May, June, July.
And that is why our salesperson always needs our esteemed customer to provide your PO several days in advance. Because we need to tell our factory to put it into mass production or batch production. Especially in the peak season, our inventory will go out and will consume very fast.
Well, the vessel to your country.
I mean the date of the vessel and the lead time they all depend whether your countries are in Latin America. because, for example, to India and Chennai, we have four voyages per month and the lead time is about 15 to 20 days. For example, it would, the lead time will take will be longer because the distance is long right? So the lead time to Latin America would be 20 to 45 days. And the voyage mostly it would be four voltages per month.
The company is the world’s best RDP Polymer supplier. We are your one-stop shop for all needs. Our staff are highly-specialized and will help you find the product you need.