From April 21 to 24, Zhiyi Chemicals will showcase its innovations at CHINAPLAS 2026 International Rubber & Plastics Fair. Gathering with global partners in Shanghai, and centering on the exhibition theme "Transformation, Collaboration & Shaping a Sustainable Future Together", the company will jointly explore new opportunities for the development of stabilization technologies and applications in rubber and plastic materials.
As the global materials industry continues to move toward high performance and sustainable development, the rubber and plastics sector is embracing new technological breakthroughs and industrial transformations. Innovative materials, green manufacturing, and industrial collaboration are reshaping the future of the industry.
Innovative Additives for a Sustainable Material Future
Zhiyi will present its high-efficiency, eco-friendly antioxidants, UV absorbers, and light stabilizers. Committed to technological innovation, the company helps customers enhance material performance and extend product service life, providing reliable support for the rubber and plastics industry to advance toward high quality and sustainable development.
Featured Products (Partial)
YISORB® UV-571 UV Absorber
Physical Properties
Appearance: Yellow or yellowish-brown transparent liquid
Assay: ≥98.0%
Color (Gardner): ≤6.0
Specific Gravity (25℃): 0.980–1.100
Refractive Index (25℃): 1.5550–1.5750
Light Transmittance: ≥90.0% at 450 nm, ≥95.0% at 500 nm
Thermal Gravimetric Analysis (TGA): 2% weight loss at 253℃, 5% weight loss at 231℃, 1% weight loss at 214℃
Application Description
A liquid benzotriazole UV absorber that absorbs UV light in the 300–400 nm range. It features excellent compatibility with various polymers, low volatility, and high absorption efficiency. Suitable for thermoplastic PUR coatings and integral foams, rigid plasticized PVC, PVB, PMMA, EVA, high-temperature cured unsaturated polyesters, as well as PA, PET, and PP fiber spinning additives. Also applicable in latexes, waxes, adhesives, styrene homo-/copolymers, elastomers, and polyolefins.
YISORB® UV-1 UV Absorber
Physical Properties
Appearance: Pale yellow transparent liquid
Assay: ≥98.5%
Color (Gardner): ≤2.5
Specific Gravity (25℃): 1.127
Thermal Gravimetric Analysis (TGA): 1% weight loss at 177℃, 2% weight loss at 200℃, 5% weight loss at 228℃
Application Description
A liquid formamidine-based UV absorber that effectively absorbs UV light from 240 to 350 nm, with a maximum absorption peak at 308 nm and nearly complete absorption in the 300–330 nm band. It delivers outstanding light stability to polyurethane products (flexible/rigid foams, elastomers, leather, textile coatings, adhesives, coatings), inhibiting photo-oxidative degradation, preventing aging, enhancing color stability, and extending service life. It exhibits remarkable synergistic effects when combined with antioxidants and light stabilizers.
YIPHOS® 4025 Antioxidant
Physical Properties
Appearance: Pale yellow transparent liquid
Phosphorus Content: 4.8%
Color (APHA): <100
Acid Value: ≤0.10 mgKOH/g
Refractive Index (25℃): 1.4880–1.4950
Specific Gravity (25℃): 0.940–0.960
Thermal Gravimetric Analysis (TGA): 5% weight loss at 260℃, 10% weight loss at 296℃, 50% weight loss at 371℃
Application Description
A high-efficiency aryl alkyl phosphite antioxidant. When used with metal stabilizers or epoxy stabilizers, it effectively improves the thermal stability, initial color, and transparency of polymers such as PVC, ABS, polyurethane, and thermoplastics. It features excellent hydrolysis resistance and heat resistance, providing superior thermal stability at one-third the dosage of antioxidant TNPP. It enhances product weatherability and offers good UV resistance at low addition levels. Recommended dosage: 0.05–1.0%.
YINOX® 1520 Antioxidant
Physical Properties
Appearance: Pale yellow transparent liquid
Assay: ≥96.0%
Melting Point: ≥14℃
Volatile Matter: ≤0.5%
Thermal Gravimetric Analysis (TGA): 2% weight loss at 253℃, 5% weight loss at 269℃, 25% weight loss at 298℃
Application Description
A multifunctional liquid thiophenol antioxidant with dual functions as a free radical scavenger and hydroperoxide decomposer. It provides thermal-oxidative protection during processing and effectively improves product weatherability. Mainly used in synthetic rubbers including butadiene rubber, styrene-butadiene rubber, EPDM, and nitrile rubber, as well as thermoplastic elastomers, delivering strong antioxidant performance with low dosage and enhancing the stability of plastics and synthetic polymers. As an eco-friendly antioxidant, it promotes the green transformation of rubber products. It is also applicable in lubricants, plastics, and other polymer materials with excellent antioxidant efficiency.
YIPACK® PUB-670 Composite Anti-Yellowing Agent
Physical Properties
Appearance: Pale yellow transparent liquid
Color (APHA): <2.5
Refractive Index (25℃): 1.5610–1.5850
Specific Gravity (25℃): 0.998–1.125
Application Description
Combines excellent heat resistance and UV absorption, effectively absorbing most UVB radiation to inhibit photodegradation of polymer materials and enhance color stability of finished products. Widely used in polyurethane shoe sole systems, polyurethane resins, leather, flexible/rigid foams, elastomers, adhesives, and textile coatings, reducing yellowing and physical property degradation caused by UV exposure. Particularly suitable for polyurethane shoe soles based on polyester polyol-MDI systems, improving the yellowing resistance grade of shoe materials. It has good compatibility in polyurethane materials without discoloration. Recommended dosage: 0.5–3.0%.
We sincerely invite you to visit us at Booth 8.2D92 to exchange ideas. Together with Zhiyi, let us collaborate amid transformation, innovate through collaboration, and shape a sustainable future for the rubber and plastics industry.
About Zhiyi
Zhiyi Chemicals is a national high-tech enterprise specializing in the R&D, production, and sales of polymer weatherability additives, focusing on anti-aging technologies for polymer materials. Its product portfolio covers three series: antioxidants, UV absorbers, and light stabilizers, widely applied in polyurethane, coatings, plastics, rubber, resins, lubricants, and other fields.
The company operates two production bases in Nanxiong (Guangdong) and Lanzhou (Gansu), as well as three R&D centers in Nanxiong, Qingdao, and Lanzhou, equipped with comprehensive anti-aging testing facilities to provide customers with full-range anti-aging solutions. It has passed ISO 9001 Quality Management System Certification and ISO 14001 Environmental Management System Certification, with some products obtaining quality certifications including SGS, REACH, and K-REACH. Adhering to scientific management, the company strictly controls R&D, procurement, production, and quality inspection in accordance with management system requirements.
Market-oriented and technology-driven, Zhiyi has established the "Guangdong Provincial Engineering Technology Research Center for Polymer Stabilization" and "Zhiyi Fine Chemicals Qingdao R&D Center". It has carried out technical cooperation with multiple research institutes and universities, giving full play to the synergy of industry-university-research collaboration. The company continues to focus on product innovation and process optimization, enriching and upgrading its product system to provide customers with advanced anti-aging solutions.