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High-Quality PVC Compound Granule for Wire and Cable Sheath - China Suppliers & Factory

This high-quality PVC resin product, developed by one of the leading China suppliers, incorporates plasticizers, stabilizing agents, colorants, and special additives. Through a meticulous process of mixing, plasticizing, and granulation, we produce premium granular materials ideal for various applications, Our products boast excellent mechanical and physical properties, superior electrical performance, and remarkable processing capabilities. Adhering to RoHS, REACH, and UL standards, these materials meet all necessary production requirements for a wide range of cables. As a trusted factory, we ensure that all our offerings align with the highest industry standards, making us a reliable choice for your material needs

Product Detail

Product Description

PVC Sheath plays a crucial role in cable manufacturing. It is an insulation material mainly made of polyvinyl chloride resin, with stabilizers, lubricants, fillers and other additives added, processed through specific processes. It is widely used to wrap the conductor part of cables, forming a protective layer to improve the insulation performance, mechanical properties, and service life of cables.

The production process of PVC sheath material mainly includes steps such as raw material preparation, mixing, extrusion, cooling and solidification. Among them, mixing is to thoroughly mix PVC resin with other additives to form a uniform mixture; Extrusion is the process of melting a mixture in an extruder and subjecting it to high-pressure extrusion, forming the desired shape and size through a die; Finally, the extruded product is cooled and solidified through a cooling system to form the final PVC sheath material product.

PVC sheathing particles - Introductionuwo

Parameters

Common Specification Table 1

Oxygen Index	UNIT	Technical Requirements
Oxygen Index	UNIT	RW-7023	RW-7023-F5	RW-7023-F6	RW-7023-F7	RW-7023-F8
Oxygen Index	％	≥30	≥32	≥34	≥36	≥38
Tensile Strength	Mpa	≥15.0	≥15.0	≥15.0	≥15.0	≥15.0
Elongation at Break	％	≥180	≥180	≥180	≥180	≥180
Thermal Deformation	％	≤50	≤50	≤50	≤50	≤50
Brittle Temperature with Impact	℃	-20	-20	-20	-20	-20
200℃ Thermal Stability	min	≥50	≥50	≥50	≥50	≥50
20℃ Volume Resistivity	Ω.m	≥1.0X108	≥1.0X108	≥1.0X108	≥1.0X108	≥1.0X108
Dielectric Strength	MV/m	≥18	≥18	≥18	≥18	≥18
Thermal Aging	\	100±2℃ * 168h
Tensile Strength After Aging	Mpa	≥15.0	≥15.0	≥15.0	≥15.0	≥15.0
Tensile Strength Variation	％	±20	±20	±20	±20	±20
Elongation After Aging	％	≥180	≥180	≥180	≥180	≥180
Elongation Variation	％	±20	±20	±20	±20	±20
Mass Losses(100℃*168h)	g/㎡	≤23	≤23	≤23	≤23	≤23
HCI Gas Evolution	mg/g	≤100	≤100	≤100	≤100	≤100
Smoke Density-flame	Ds max	≤300	≤300	≤300	≤300	≤300

Common Specification Table 2

ITEM	UNIT	Technical Requirements
ITEM	UNIT	RW-7023	RW-7023-F5	RW-7023-F6	RW-7023-F7	RW-7023-F8
Oxygen Index	％	≥30	≥32	≥34	≥36	≥38
Tensile Strength	Mpa	≥15.0	≥15.0	≥15.0	≥15.0	≥15.0
Elongation at Break	％	≥180	≥180	≥180	≥180	≥180
Thermal Deformation	％	≤50	≤50	≤50	≤50	≤50
Brittle Temperature with Impact	℃	-20	-20	-20	-20	-20
200℃ Thermal Stability	min	≥50	≥50	≥50	≥50	≥50
20℃ Volume Resistivity	Ω.m	≥1.0X108	≥1.0X108	≥1.0X108	≥1.0X108	≥1.0X108
Dielectric Strength	MV/m	≥18	≥18	≥18	≥18	≥18
Thermal Aging	\	100±2℃ * 168h
Tensile Strength After Aging	Mpa	≥15.0	≥15.0	≥15.0	≥15.0	≥15.0
Tensile Strength Variation	％	±20	±20	±20	±20	±20
Elongation After Aging	％	≥180	≥180	≥180	≥180	≥180
Elongation Variation	％	±20	±20	±20	±20	±20
Mass Losses(100℃*168h)	g/㎡	≤23	≤23	≤23	≤23	≤23
HCI Gas Evolution	mg/g	≤100	≤100	≤100	≤100	≤100
Smoke Density-flame	Ds max	≤300	≤300	≤300	≤300	≤300

Customization Support

Support customizing other specifications based on your specific application requirements.

Detailed image

Frequently Asked Questions (FAQ)

What is the primary role of a PVC sheath in cables?

The PVC sheath serves as a critical protective layer wrapped around the conductor parts of cables. Its main purpose is to enhance insulation performance, protect against mechanical wear, and significantly extend the overall service life of the cables.

What are the main stages in the PVC sheath manufacturing process?

The production process consists of four primary stages: raw material preparation (mixing PVC resin with stabilizers, lubricants, and fillers), high-pressure extrusion through a shaping die, and cooling/solidification through a specialized cooling system to set the final product shape.

What is the significance of the Oxygen Index parameter?

The Oxygen Index measures the flame-retardant capacity of the PVC sheath. Higher values (ranging from ≥30% to ≥38% depending on the grade, such as RW-7023-F8) represent superior resistance to combustion, making the material safer for high-temperature and critical applications.

How does the PVC sheath material behave under thermal aging?

According to the technical specifications, when subjected to thermal aging at 100±2℃ for a continuous duration of 168 hours, the material maintains excellent structural integrity, retaining a tensile strength of ≥15.0 Mpa and an elongation rate of ≥180%.

Are custom specifications available for different cable projects?

Yes, we fully support the customization of other specifications. If your project has unique performance parameters or dimensions not listed in our standard specification tables, our team can tailor the formulation to suit your needs.