B2 grade low smoke halogen-free flame retardant polyolefin insulation material

low smoke zero halogen B2 grade Cable Insulation Material

B2 grade insulation material is made of high purity resin as base material, with halogen-free flame retardant, antioxidant, etc. mixed and extruded into granules. It has excellent performance such as halogen-free, heat-resistant, and weather-resistant, has no precipitation pollution, meets the relevant requirements of Rohs, and is easy to extrude and process.

Application

Related cables of GB/T 31247 standard

B2-grade low-smoke halogen-free flame-retardant polyolefin insulation material is a special type of cable material. It produces less smoke when burning and does not contain halogen, so it does not produce toxic gases. It is particularly suitable for occasions with high safety and environmental protection requirements, such as high-rise buildings, subways, power plants, nuclear power plants, rail transit and other important departments and public places.

The preparation of this material usually includes the following steps

Raw material mixing: polyolefin blended resin, inorganic flame retardants such as aluminum hydroxide and magnesium hydroxide, and antioxidants are mixed evenly in a certain proportion.

Extrusion processing: The mixed raw materials are melted and extruded through an extruder to form a cable insulation layer.

Irradiation cross-linking: The polyolefin material is cross-linked by electron beam irradiation or chemical cross-linking agents to improve its mechanical properties and heat resistance.

The characteristics of B2-grade low-smoke halogen-free flame-retardant polyolefin insulation material include

Low smoke and halogen-free: less smoke is produced during combustion, no halogen, and the generation of toxic gases is reduced.

Flame retardant properties: The flame retardant properties of the material are improved by adding inorganic flame retardants such as aluminum hydroxide and magnesium hydroxide.

Mechanical properties: The cross-linked polyolefin material has high tensile strength and elongation at break, which improves the mechanical properties of the cable.

Heat resistance: The cross-linked insulation material can withstand high operating temperatures and is suitable for a variety of environmental conditions.

In practical applications, B2-grade low-smoke halogen-free flame-retardant polyolefin insulation materials need to meet relevant national standards, such as GB/T 18380, to ensure that they can provide adequate safety performance in the event of a fire. With the increasing requirements for environmental protection and safety, the application prospects of this material are expected to increase further.

Testing items	VALUE	Typicalvalue	UNIT	Method
Density	≤1.65	1.62	g/cm3	GB/T1033
Low-temperature brittle temperature	≤15/30	0/30	个	GB/T5470
Environmental stress cracking resistance	≥96	108	F0/h	GB/T2951
Thermal stress cracking resistance	Uncracked	Uncracked	一	GB/T32129
Tensile strength before aging	≥10	11.8	MPa	GB/T2951
Elongation at break before aging	≥150	180	%	GB/T2951
Performance after aging110℃×168h
Change rate of tensile strength	≤±30	10	%	GB/T2951
Change rate of elongation at break	≤±30	-9	%	GB/T2951
Volume resistivity at 20℃	≥1.0×1012	5.6×1012	Q.m	GB/T1410
Dielectric strength	≥18	20	MV/m	DIN EN 6024
Oxygen index	≥35	37	%	GB/T2406
Smoke density flame method	≤100	80	/	GB/T8323
Smoke density flameless method	≤350	200	/	GB/T8323
Hydrogen halide gas content	≤5	0	m/g	GB/T17650
Combustion gas pH value	≥4.3	5.9	/	GB/T17650
Combustion gas conductivity	≤10	6	μs/mm	GB/T17650
Water absorption test70℃×24h
Maximum weight gain	≤10	5	mg/cm²	GB/T32129
Peak heat release rate	≤180	100	kW/m2	lS0/5660
Total heat release	≤180	110	MJ/m2	IS0/5660
Average heat release rate	≤100	80	kW/m2	1S0/5660

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FAQS

What are your main products?

Angreen Main Products
Angreen's main products include cross-linked polyolefins (XLPO), cross-linked polyethylene (XLPE) of various types of cross-linked materials, low smoke zero halogen (LSZH) series materials, thermoplastic polyurethane (TPU), thermoplastic elastomers (TPEs), silicone, EPDM, PVC and other materials.
Widely used in various wires, cables, optical fiber cables, UL cables, TUV cables and other fields, covering new energy vehicles, artificial intelligence, robots, rail transit, high-speed rail subways, equipment, ships, 5G optical communications, building decoration, photovoltaics, electricity, power generation, wind energy, mining, medical, ocean and other professional fields.
Do you have a research and development team?

Angreen Has A Senior And Professional R&D Team.
Yes, Angreen has a senior and experienced R&D team, including 3 PhDs in polymer materials, 1 postdoctoral fellow in chemistry and chemical engineering, and 2 specially appointed professors. It has strong experimental R&D capabilities and independent patented technologies, and has multiple R&D divisions, each of which is led by PhD leaders.
R&D departments include:
Low smoke and halogen-free materials division
TPE materials division
TPU materials division
New energy materials division
Silicone products division
Angreen has established in-depth cooperation with key universities and research institutions such as the University of Science and Technology of China, and has established a basic R&D laboratory in the laboratory of USTC. PhDs from USTC and corporate R&D technicians conduct preliminary research and development of various new products at home and abroad for various cutting-edge technologies, providing reliable R&D technical support for leading technologies.
At the same time, the company has a senior and experienced R&D team with strong experimental R&D capabilities and independent patented technologies, and has multiple R&D divisions, each of which is led by PhD leaders. In addition, we have established close cooperative relations with many national key laboratories of key universities and scientific research institutions such as the University of Science and Technology of China, and can provide comprehensive combustion experiments including large-scale combustion, B1, CPR, etc., a full range of performance and R&D demonstration tests, and all-round product R&D solutions.
Angreen is also a designated postdoctoral research workstation of the Ministry of Human Resources and Social Security, Anhui Province Wire and Cable Materials Engineering Technology Research Center, New Product and New Technology Cooperation Base of East China University of Science and Technology, Graduate Internship Base of University of Science and Technology of China, Polymer Materials Laboratory Base of Tongji University, and Industry-University-Research Transformation Base of Wire and Cable Materials of Zhejiang University.
Can you produce custom products?

Yes, all of Angreen's products can be custom-designed and manufactured to meet your application needs and product directions effectively and reasonably.
The Process Of Customizing Products Is As Follows.
1. Customer Demand
Customers provide product requirements and technical parameters.

2. Customized R&D
Our R&D team develops products according to customer needs and provides corresponding physical properties and quotations.

3. Sample Production
If the physical properties and quotations meet customer expectations, our company will produce samples and send them to customers.

4. Customer Testing
Customers take samples for testing to check whether relevant performance meets product requirements.

5. Customer Confirmation
Customer test samples meet the requirements. If not, our company will continue to adjust parameters.

6. Mass Production
After obtaining customer confirmation, we immediately start mass production of products to ensure timely delivery.

7. Logistics Coordination
After the product is produced，we will ensure that the product is delivered safely and on time through professional logistics services.

8. Full Tracking
We monitor the entire logistics process to ensure that customers are aware of product dynamics at any time.

9. Professional Suggestions
Provide customers with the best manufacturing suggestions to improve their production efficiency and product quality.

B2 grade low smoke halogen-free flame retardant polyolefin insulation material

low smoke zero halogen B2 grade Cable Insulation Material

The preparation of this material usually includes the following steps

The characteristics of B2-grade low-smoke halogen-free flame-retardant polyolefin insulation material include

Angreen Main Products

Angreen Has A Senior And Professional R&D Team.

The Process Of Customizing Products Is As Follows.