Polyvinyl Chloride Resin

  • Abbreviation: PVC Resin
  • Appearance: White Powder
  • Main Grade: SG3, SG5, SG7, SG8
  • K value: 72-71, 68-66, 59-55
  • CAS No.: 9002-86-2
  • HS Code: 3904109001
  • Molecular Formula: (C2H3CL)n

Polyvinyl chloride, referred to as PVC, is a thermoplastic resin polymerized by vinyl chloride monomer under the action of an initiator. It is a homopolymer of vinyl chloride. The appearance is white powder, non-toxic and odorless. As one of the important organic synthetic materials, PVC resin has good physical and chemical properties, such as heat resistance, cold resistance, corrosion resistance, insulation, and flame retardancy. Therefore, PVC resin is widely used in construction, electronics, automobiles, medical care, packaging and other fields.

As a leading PVC resin supplier in China, Fengbai can provide different grades of PVC resin for you, such as SG3, SG5, SG7 and SG8. However, their applications are different. For example, PVC SG3 is suitable for leathers, hoses, wire cables, shoes and other general purpose soft products. While PVC SG5 can be mainly used for pipes, profiles, fittings, panels, injection, moulding, sandals, hard tube and decorative materials, etc. Both PVC SG7 and PVC SG8 are for sheets, bottles, calendaring, rigid injection and moulding pipes. In addition to this, we also provide different PVC resin brands to meet many customers’ requirements,  such as XINFA, ZHONGTAI, SINOPEC, ERDOS, TIANYE,etc. Please check the following parameters and choose the right polyvinyl chloride resin brands you require.

PVC Resin Manufacturers in China

Item

SG3

SG5

SG7

SG8

Viscosity No. ml/g

135-127

118-107

95-87

86-73

K value

72-71

68-66

62-60

59-55

Polymerizing Index

1370-1251

1135-981

845-741

740-650

Number of impurity particles

16max

16max

20max

20max

Volatile Matter, %

0.3max

0.4max

0.4max

0.4max

Apparent Density, g/ml

0.45min

0.48min

0.50min

0.50min

Number of Fish Eye (/400 cm2)

20max

20max

30max

30max

Plasticizer absorption of 100g resin, g

26min

19min

12min

12min

VCM Residue, ppm

5max

5max

5max

5max

Whiteness(160°C,10min), %

78min

75min

75min

75min

Particle size

≥0.25mm

2.0max

2.0max

2.0max

2.0max

≥0.063mm

95min

95min

95min

95min

PVC resin is a very important plastic material, which is widely used in modern industry and life. PVC resin can be processed into various plastic products, which can be divided into soft and hard products according to their uses. They are mainly used for the production of transparent sheets, pipe fittings, gold cards, blood transfusion equipment, soft and hard pipes, plates, doors and windows, Profiles, films, electrical insulation materials, cable sheaths, blood transfusion materials, etc. The following are its specific applications:
  • In construction industry, polyvinyl chloride resin is widely used in heat insulation, sound insulation, waterproof, fire prevention, etc.
  • In the electronic field, PVC resin is used as an insulating material for wires and cables. Due to the excellent insulation performance of polyvinyl chloride resin, it can protect the wires and cables from the interference of the external environment, and at the same time prevent the current interference between the wires and cables to ensure the normal operation of electronic equipment.
  • PVC resin is widely used in automotive interior parts, exterior parts, pipes, fuel tanks, etc. For example, the manufacture of automotive dashboards, door panels, seats, steering wheels and other interior parts.
  • Used as materials for medical devices, infusion tubes, syringes, etc. Because polyvinyl chloride resin has excellent properties such as non-toxicity, corrosion resistance, and easy processing, it can ensure the quality and safety of medical devices.
  • PVC can be used as a material for food packaging, pharmaceutical packaging, cosmetic packaging, etc. Because polyvinyl chloride resin has good transparency, chemical resistance, heat resistance and other properties, it can ensure the quality and safety of packaged items.

Depending on the scope of application, pure PVC resin powder is divided into: General-purpose PVC resin, high-polymerization PVC resin, cross-linked PVC resin. 

  • General-purpose PVC resin is formed by polymerization of vinyl chloride monomer under the action of an initiator. 
  • High degree of polymerization PVC resin refers to the resin that is polymerized by adding a chain extender to the polymerization system of vinyl chloride monomer. 
  • Cross-linked PVC resin is a resin polymerized by adding a cross-linking agent containing diene and polyene to the vinyl chloride monomer polymerization system. 
According to the polymerization method, polyvinyl chloride can be divided into four categories: suspension method PVC, emulsion method PVC, bulk method PVC, solution method PVC. Among them, the suspension method PVC is the one with the largest output, accounting for about 80% of the total PVC output.
  • With more than 15+ years of export experience in plastic chemicals industry.
  • We can guarantee sufficient supply and fast delivery.
  • Free samples for testing and different packages to meet customers’ requirements.
  • Fengbai has a good cooperation with cargo agents and shipping companies.
  • Various certifications, good quality and services, competitive PVC resin price.

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