Hengli PET Resin Supplier in China

Hengli PET is a high-performance polyester chips produced by Hengli Group. As a leading company in the chemical industry, Hengli Group has a strong track record in the chemical industry, encompassing a wide range of businesses, from solvents and plastics to specialty chemicals. Hengli Petrochemical, a subsidiary of Hengli Petrochemical, is dedicated to producing high-quality, safe, and reliable chemical products that meet customer needs and industry standards, and Hengli PET resin is one of its star products.

Performance Characteristics

Excellent mechanical properties. Hengli PET resin has high tensile strength, elastic modulus, and good toughness. In practical applications, such as the packaging industry, packaging films made with Hengli PET resin can withstand a certain degree of stretching and compression without breaking, effectively protecting the contents. In the electronics and electrical appliance sector, components made from it, such as coil bobbins, can resist deformation and damage caused by mechanical stress during long-term use due to its inherent mechanical properties.
Excellent thermal stability. This resin can withstand high temperatures, with a heat deflection temperature of approximately 210°C. This property makes it excellent in applications with high temperature requirements, such as food packaging, where it can be used as packaging containers for hot-filled foods. In the electronics and electrical appliance sector, it can withstand the heat generated by electronic products during operation, ensuring the proper functioning of components.
Strong chemical stability. Hengli PET resin has good resistance to weak acids and organic solvents. However, it is not resistant to immersion in hot water and may be affected to some extent in alkaline environments. In actual use, it is necessary to carefully select applications based on its chemical properties and avoid contact with chemicals that may degrade its performance.
Other properties. The products made by Hengli PET have a glossy surface and high transparency, finding application in optical materials. It also exhibits excellent electrical insulation properties, with minimal temperature impact, making it suitable for use in electronic and electrical insulation. Furthermore, this resin exhibits excellent oxygen and moisture barrier properties, making it widely used in industries requiring barrier properties for packaging materials, such as food and pharmaceuticals.

PET Fiber Grade

(1) Semi-dull PET Chips

TEST ITEM	UNIT	STANDARD	RESULT
Intrinsic Viscosity	DL/g	0.680 ± 0.010	0.680
Terminal Carboxyl Group	Mol/t	29.0 ± 4.0	29.5
The Colorimetric Value L	/	≥ 80	87.2
The Colorimetric Value B	/	4.5 ± 2.0	4.3
TiO₂ Content	%	0.29 ± 0.03	0.29
Melting Point	°C	260 ± 2.0	260.1
Diethylene Glycol	%	1.31 ± 0.10	1.31
Moisture	%	≤ 0.40	0.01
Ash Content	%	≤ 0.05	0.023
Fe Content	ppm	≤ 1.5	0.38
Abnormal	%	≤ 0.4	0
Powder	mg/kg	≤ 80	0
Grade	/	–	A

(2) Bright Fiber PET Chips

Analysis Item	Enterprise Standard	Analysis Results
Intrinsic Viscosity(dL/g)	0.678 ± 0.010	0.676
Melting Point (℃)	261 ± 2.0	260
Carboxy End Groups (mol/t)	26 ± 3.0	27
Color Values L	≥80	87.9
Color Values b	2 ± 2.0	0.9
Diethylene Glycol Content(%)	0.92 ± 0.10	0.94
Water Content(%)	≤ 0.4	< 0.1
Iron Content(mg/kg)	≤ 1.5	0.4
Ash Content(%)	≤ 0.05	0.02
Ash Content(mg/kg)	≤ 80	34
Abnormal Chip (%)	≤ 0.4	< 0.1
Chip Size, (g/100pcs)	1.9 ± 0.1	1.91

PET Bottle Grade

Main models: HL-BP01,HL-BP02,HL-BP03,HL-BP06,HL-BP07

Main Applications of Hengli PET

Packaging. Especially in food packaging, Hengli PET resin can be made into various food bags, boxes, and beverage bottles. Its excellent barrier properties effectively prevent food from oxidative spoilage, extending its shelf life; its high transparency allows consumers to visually see the condition of the food inside the package. In pharmaceutical packaging, Hengli PET resin containers meet the stability and safety requirements of pharmaceutical packaging materials, ensuring that drug quality is not compromised.
Electrical and Electronics. Due to its excellent mechanical and electrical insulation properties, Hengli PET resin is widely used in the manufacture of electronic and electrical components, such as transformer housings, television and tape recorder parts, connectors, and relays. In these applications, it not only ensures the proper operation of electronic equipment but also provides a certain degree of mechanical protection.
Automotive. Hengli PET also has numerous applications in the manufacture of automotive parts, such as switchboard covers, ignition coils, various valves, exhaust components, and distributor caps. Its excellent paintability, surface gloss, and rigidity can also be used in the manufacture of automotive exterior parts, enhancing the aesthetics and durability of the vehicle.
Other fields. Films and sheets can be used as packaging materials for various food, medical, and sterile products; high-end packaging materials for textiles, precision instruments, and electrical components; substrates for audio and video tapes, film, computer floppy disks, metallized films, and photosensitive films; and electrical insulation materials, capacitor films, flexible printed circuit boards, and membrane switches. In the mechanical equipment sector, they can be used to manufacture gears, cams, pump housings, pulleys, motor frames, and clock parts. They can also be used for microwave oven trays, various roofing systems, and outdoor billboards and models.

Production Process

Hengli PET resin is produced through the polymerization of purified terephthalic acid (PTA) and monoethylene glycol (MEG). Hengli Group utilizes advanced and proven technologies in the production process to ensure consistent and consistent quality across every batch. For example, precise control of temperature, pressure, and catalysts during the polymerization phase ensures orderly molecular chain growth, resulting in a well-defined molecular structure and properties for the PET resin.

In 2023, Hengli Group announced plans to build a PET production facility with an annual capacity of 1.2 million tons. This not only demonstrates its commitment to continued expansion in PET resin production, but also reflects its confidence in its advanced production processes, which enable large-scale, high-quality production.