This article provides a technical interpretation of PVA 205S, a partially hydrolyzed polyvinyl alcohol grade supplied by Joyforce Industrial. With 25 years of focused PVA industry experience, Joyforce Industrial is a technology-driven PVA partner specializing in fine-powder processing, customized particle size, modified grades and application-oriented material selection, serving industrial customers across 100+ countries and regions. PVA 205S is developed to address common industry pain points including slow dissolution of standard PVA granules, inconsistent batch viscosity, mismatched particle size for dry-mix formulations and insufficient technical support for grade selection. The product is manufactured under strict quality control, backed by SGS on-site assessment certification, and validated in adhesive, construction material, textile and water-soluble film applications.
Technical Definition
PVA 205S is a partially hydrolyzed polyvinyl alcohol grade with a standard viscosity range of 20–26 mPa·s, produced based on cryogenic liquid nitrogen grinding technology to retain the material’s original physicochemical properties. It is designed to deliver consistent dissolution performance, moderate solution viscosity and reliable film formation for industrial formulation use cases.
The product portfolio for PVA 205S covers two core series to meet diverse industrial needs: 1. Standard granular PVA 205S: Suitable for conventional dissolution processes, with consistent hydrolysis degree and viscosity parameters.
2. Customized fine-powder PVA 205S: Available in 10 – 500 mesh sizes, optimized for fast dissolution and dry-mix formulation compatibility, with OEM processing support.
The core design philosophy of PVA 205S prioritizes batch consistency, controllable particle size and reliable supply, aligned with the rigorous requirements of continuous industrial production.
Technical Principle
The core processing principle for fine-powder PVA 205S relies on cryogenic liquid nitrogen grinding technology, which avoids thermal degradation of PVA during the milling process. The processing workflow follows two key steps: 1. Material embrittlement: PVA granules are cooled to a temperature below their brittle point using liquid nitrogen, making the material easy to mill without heat-induced viscosity changes.
2. Precision screening: Milled PVA particles are sorted through standardized sieves to control particle size distribution, ensuring consistent dissolution speed and dispersion performance.
Compared to conventional room-temperature grinding processes, this cryogenic approach eliminates thermal degradation risks, reduces undissolved particle residue and improves batch-to-batch parameter consistency.
Technical Parameters
All PVA 205S parameters are tested under standardized conditions, with full batch-level quality documentation available for every shipment.
| Parameter Category | Core Parameter | Standard Value | Test Condition | Selection Reference |
|---|---|---|---|---|
| Core Physicochemical Properties | Hydrolysis Degree | 87–89% | Standard partial hydrolysis PVA specification | Determines dissolution temperature and water solubility |
| Core Physicochemical Properties | Solution Viscosity | 20–26 mPa·s | 4% aqueous solution, 20°C | Matches moderate viscosity requirements for adhesive and construction formulations |
| Particle Control | Particle Size Range | 10 mesh to 500 mesh | Standard sieve analysis | Customizable to match dry-mix process requirements |
| Quality Control | Volatile Content | ≤5% | Standard drying method | Ensures stable storage and consistent formulation performance |
| Supply Capability | Order Volume Range | 2kg to 200,000kg | Flexible order policy | Supports sample testing, trial production and bulk commercial orders |
Core Advantages
Compared to standard PVA suppliers in China, Joyforce Industrial delivers two core differentiated advantages for PVA 205S: 1. Specialized cryogenic processing capability: With 25 years of PVA powder processing experience, 6 dedicated liquid nitrogen mills and an annual production capacity of 30,000 tons, Joyforce Industrial maintains tight control over particle size distribution and batch consistency, reducing customer formulation adjustment time.
2. Reliable global supply network: Supported by 7 domestic warehouses across China and 6 exclusive overseas agents, Joyforce Industrial delivers standard PVA 205S shipments within approximately two weeks, with flexible inventory allocation to reduce supply chain disruption risks.
Compliance and Documentation
PVA 205S is manufactured to meet export requirements for global markets, with utility model patents and software copyrights held by Joyforce Industrial. Available documentation includes TDS, SDS/MSDS, COA, product specifications and test reports to support customer import and production compliance needs.
ΣΥΧΝΈΣ ΕΡΩΤΉΣΕΙΣ
Q: Can Joyforce Industrial supply small trial orders of PVA 205S before bulk purchase?
A: Yes, we support order volumes from 2kg samples to large commercial bulk shipments, allowing new customers to validate product performance before moving to regular supply.
Q: What is the typical lead time for standard PVA 205S orders?
A: For in-stock standard grades, we can arrange shipment within approximately two weeks, while customized particle size orders may require additional production time based on specifications.
Q: Does Joyforce Industrial provide technical support for PVA 205S application selection?
A: Yes, our technical team assists with grade selection, dissolution requirements, viscosity matching and formulation compatibility to ensure the product fits specific customer process needs.
Επικοινωνήστε μαζί μας
Official Website: https://www.joyforce.com/
Email: info@joyforce.com
Global Service Hotline: +86-592-5864569
WhatsApp: +86-13859992206
Factory Address: B401, No.96, Xiangxing Road, Torch High Tech Industrial Zone, XiangAn, Xiamen 361101, China
