Emulsion polymerization is the second most popular polymerization method after suspension polymerization. The advantages including fast emulsion polymerization, high product molecular weight, stable dispersion system, controllable and easier to achieve continuous operation, and the latex can be directly used as the final product.
Hydroxypropyl methyl cellulose (HPMC)
HPMC has excellent dispersibility and thickening properties, and its aqueous solution has surface activity and can protect colloids.Recommend grade: Celopro®MK100, Celopro®MF50, Celopro®ME50, Celopro®ME15
Celopro® cellulose ether has high mechanical strength, flexibility, heat resistance and cold resistance, and has good compatibility with various resins and plasticizers.
1. Dispersibility
Celopro®Cellulose ether can reduce the interfacial tension between VCM and water, making the VCM uniformly and stably dispersed in the water medium to prevent the droplets from merging.
2. Thickening
Celopro®Cellulose ether can form a transparent viscous solution, increase the viscosity of the system, and contribute to the stable polymerization of PVC emulsion.
3. Thermal stability
Celopro®Cellulose ether has good thermal stability and can adapt to temperature changes during the polymerization of PVC emulsion.
4. Surface activity
The water solution of Celopro®Cellulose ether has delayed soluble property and can be used as a colloid protective agent to prevent polymer particles from agglomerating.
5. Lubricity
Celopro®Cellulose ether can increase the flexibility and plasticity of the polymer, and reduce the friction resistance between PVC particles, and then improve the solubility and processing performance.
Typical Properties of Celopro® Cellulose Ethers
| Product | MeO (%) | HPO (%) | Viscosity (mPas) | NaCl (%) | Fe (ppm) | H2O (%) |
| Celopro MK100 | 22-23 | 6-7 | 80 – 120 | <2.0 | <150 | <5.0 |
| Celopro MF50 | 28-29 | 6-7 | 40 – 60 | <1.5 | <150 | <5.0 |
| Celopro ME50 | 29-30 | 11-12 | 45 – 55 | <1.5 | <150 | <5.0 |
Solution Properties of Celopro® Cellulose Ethers
| Product | Gel Temp. | Extractable Cellulose Ethera (%) | IFTb (dyne/cm) | Viscosityc (mPas) | Application |
| Celopro MK100 | 72 | 0.42 | 15.6 | 100 | Rigid PVC, low porosity, high bulk density |
| Celopro MF50 | 67 | 1.58 | 11.2 | 50 | General purpose suspending agent |
| Celopro ME50 | 60 | 2.46 | 8.6 | 50 | Flexible PVC, high porosity, low VCM residuals |
| Celopro ME15 | 62 | 3.2 | 7.5 | 15 | Flexible PVC, high porosity, low VCM residuals |
“Professional technical team to create high-quality cellulose ethers”
Our professional technical team consists of industry experts and senior engineers with rich production experience and expertise.
Through continuous research and development, we have launched a variety of new cellulose ether products, such as highly modified HPMC/MHEC/HEC, etc., to meet the application needs of different fields.
Our R&D team is also committed to optimizing production processes and reducing costs to provide you with more competitive product solutions.
“Comprehensive Technical Support”
Our services are not limited to product supply. We provide comprehensive technical support, including product application guidance, process optimization suggestions, and on-site technical support. Our technical team is always ready to answer your questions and ensure that your production process runs smoothly.
“Long-term Relationship Starting With a Sample”
At Celotech, we firmly believe that “seeing is believing”. In order to let you feel the excellent quality and performance of our cellulose ether products, we have specially offered you a free sample experience. Please contact our professional sales staff, we will provide detailed product usage guidelines and performance testing suggestions to help you better understand and apply our products!
Our Celotech Application Lab usually prepares free samples weighing less than 1.0kg, but the freight delivery fees from my lab to consignee should be on consignee’s account.
