Inconsistent material quality leads to structural failure, acoustic leakage, or even safety risks—LIZHENG’s patented rigid PVC sheets provide a smart, performance-driven solution.
Rigid PVC sheets by Jiangxi Lizheng Environmental Protection Technology Co., Ltd. offer superior mechanical strength, sound insulation, anti-static functionality, and scalable production, redefining standards in construction, cleanrooms, and chemical systems.
Explore how Lizheng’s technical edge elevates rigid PVC sheet performance.
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Description Of Rigid PVC Sheets
Jiangxi Lizheng Environmental Protection Technology Co., Ltd. demonstrates its technical strengths in PVC sheet processing through innovations in raw material preprocessing, functional product development, scalable manufacturing, and environmental adaptation. The company’s edge is best understood through its patented technologies, production capacity, and product features:
1. Innovation in Raw Material Preprocessing: High-Efficiency Mixing and Sieving
1.1 Patented Mixing Device (CN118438559A)
Lizheng’s self-developed PVC mixing unit improves material uniformity through a dual-stage filtration and particle size separation system:
- Layered Sieving Design: A primary filter plate (coarse screen) and secondary filter plate (fine screen) enable automatic segregation based on particle size. Coarse particles exit through one discharge tube into a fixed barrel, while fine particles pass through a second outlet—eliminating density inconsistencies in finished sheets caused by uneven mixing.
- Dynamic Pushing System: A rotating shaft drives a slanted pushing rod, actively forcing material through the filter plates. This overcomes material build-up issues in traditional mixing and improves sieving efficiency by over 30%.
- Simultaneous Stirring and Heating: Blade-shaped scrapers rotate against the mixing chamber walls. Heating wires on the conveyor surfaces provide gentle preheating (to avoid PVC thermal decomposition), shortening downstream extrusion time.
1.2 Advantages Compared to Traditional Processes
| Metric | Lizheng Technology | Traditional Mixing |
|---|---|---|
| Raw Material Usage | ≥95% | 80%–85% |
| Mixing Uniformity | Particle size–layered control | Random mixing |
| Energy Consumption | Preheating reduces extrusion energy by 15% | Higher due to continuous high temperatures |
Features Of Rigid PVC Sheets
2. Development of Functional Sheets: Breakthroughs in Soundproofing and Anti-Static Properties
2.1 Multi-Layer Soundproof Structure (CN214090589U)
- Triple-layer design: Inner cavity + foam soundproof beads + insulating cotton:
- Foam beads in the inner cavity block high-frequency noise.
- Middle layer insulation cotton absorbs low-frequency noise.
- Measured sound insulation reaches 32 dB (40% higher than standard sheets).
- Enhanced Assembly: Fitted with positioning blocks and slots for seamless interlocking. Anti-wear protrusions prevent panel damage and acoustic leaks, ideal for high-quiet zones like hospitals and laboratories.
2.2 Anti-Static Sheets (CN214090716U)
- Achieves permanent anti-static performance via embedded conductive layer + protective outer film:
- Carbon fiber conductive mesh embedded in the cavity reduces surface resistance to 10⁶Ω (GB standard ≤10⁹Ω), preventing dust attraction and electrostatic hazards.
- Exterior wrapped in a hydrophobic protective film, combining moisture resistance and charge dissipation—perfect for electronics workshops and cleanroom settings.
Applications Of Rigid PVC Sheets
🏭 3. Scalable Manufacturing Capability and Production Line Configuration
3.1 Intelligent Production Line
- Phase I features a 10,000-ton annual capacity PPH/PVC sheet production line, supporting fully customized specifications (color, thickness, and functional modules).
- Integrated automatic temperature control system in the extrusion section offers ±1℃ precision, ensuring consistent density in high-performance materials like CPVC (Vicat softening point ≥100℃).
3.2 Dual Certifications in Quality and Environmental Management
- Certified under ISO 9001 (Quality) e ISO 14001 (Environmental) systems; meets chemical and medical-grade anti-corrosion and mildew standards.
- Upgraded emission permits: In 2024, fiberglass equipment lines were added, and PVC scrap reuse reached a 90% recycling rate.
Which PVC Is Most Rigid?
4. Expanding Use Scenarios: Integrated Advantages in Environmental Equipment
Lizheng deeply integrates rigid PVC sheets into downstream environmental protection equipment, forming a material–equipment–engineering closed-loop solution:
- High-end Anti-Corrosion Tanks: CPVC sheets serve as linings for PPH-wound storage tanks, resisting pH 1–14 environments and lasting twice as long as traditional PP materials.
- Modular Environmental Systems: Sheets are used directly in extraction boxes and oil removal systems. Welded joints provide sealed structures, replacing metal welds and cutting equipment weight by 40%.
Sintesi
Lizheng’s core competitiveness lies in:
👉 Proprietary raw material treatment technology ensuring sheet performance
👉 Functional innovation (soundproofing/anti-static) opening high-end markets
👉 In-house sheet and equipment integration driving cost-efficiency
Backed by a 46,000 m² facility in Chongren Industrial Park (25,000 m² of which is operational), Lizheng has established a full-cycle ecosystem in the specialty PVC sheet sector—from R&D to production to application. Future breakthroughs are expected in the field of CPVC high-temperature sheets (≥100℃).
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