Company Profile
Weifang Phoenix New Material Co., Ltd
Weifang Phoenix New Material Co., Ltd is a high-tech chemical enterprise integrating research and development,
production, sales and technical services. Headquartered in Weifang, Shandong Province. Its production facilities are
ocated in Weifang Binhai Chemical Industry Park, a state-approved chemical industry park.
Our mission is to be the leading sustainable "one-stop shop" chemical solutions company, providing customers
with innovative, science-led, differentiated products and solutions. To this end, we provide a safe and healthy working
environment for our employees and comply with all local, national and international regulations.
Product Parameters
| Parameter |
SG3 |
SG5 |
SG7 |
SG8 |
| Vloatile content incl.water (%≤) |
0.3 |
0.4 |
0.4 |
0.4 |
| Apparent density (≥) |
0.42 |
0.48 |
0.48 |
0.5 |
| Number of Fish Eye 1400cm2 (≤) |
20 |
20 |
30 |
30 |
| Plasticizer absorption of 100g resin(≥) |
26 |
19 |
12 |
22 |
| VCM Residue PPM (≤) |
5 |
5 |
5 |
5 |
| K-Value |
72-71 |
66-68 |
62-60 |
59-55 |
| Polymerizing Index |
1300+/-50 |
1000+/-50 |
800+/-50 |
700+/-50 |
Number of impurty particl
(≤) |
16 |
16 |
20 |
20 |
| Whiteness(160ºC after 10 min)(%≥) |
78 |
78 |
75 |
75 |
PVC - known as "China's No. 1 and the world's second largest general-purpose synthetic resin material", with its excellent flame retardancy, wear resistance, chemical corrosion resistance, as well as excellent comprehensive mechanical properties, product transparency, electrical insulation, and simple processing characteristics, PVC is the leader in the field of plastics. Next, we will conduct a comprehensive and in-depth interpretation of PVC from seven dimensions, including the overview of polyvinyl chloride, development history, type classification, synthesis process, performance modification, application field, and common problems of products.
1. Overview of polyvinyl chloride
Polyvinyl chloride, commonly known as PVC, is a common plastic material. Although I look similar to PE (due to chlorine atoms replacing hydrogen atoms), our sources are very different. I appear in a white powder state, with a mild personality, and can become soft at a temperature of 80-85ºC; when the temperature reaches 130ºC, I will become more active and present a viscoelastic state; once it exceeds 160-180ºC, I will enter a viscous flow state, as touching as pear blossoms with rain.
However, due to the "toxic gene" I was born with - chlorine atoms, my body is relatively fragile. Under the action of light and heat, chlorine atoms are easily replaced, which affects my performance. Therefore, since I was a child, I have needed to undergo a special operation to control the disease, that is, modification.
1. PVC molecular structure and basic properties
Figure: shows the molecular structure of PVC, its structural formula is -(CH2-CHCl)n-, showing a slightly yellow translucent state and a certain luster. This unique molecular structure gives PVC a series of basic physical and chemical properties.
2. The development history of PVC
With the revelation of the molecular structure of PVC, people have a strong interest in its development history. From its birth to its widespread application around the world today, the development history of PVC can be described as magnificent. Next, we will explore the development trajectory of PVC together, understand how it went from the laboratory to the market, and became an indispensable part of our lives.
3. Classification of PVC
Product Description
Polyvinyl Chloride (PVC) is a polymer material formed by free radical polymerization of vinyl chloride monomer (VCM). It is the third largest synthetic plastic in the world (after polyethylene and polypropylene) 35. Its molecular chain is mainly head-to-tail structure, with chlorine atoms replacing hydrogen atoms in polyethylene to form a stable chemical structure.
Detailed Photos
In the large family of PVC, different types of PVC have their own unique properties and applications. By changing its molecular structure, we can get several different types of PVC, including general-purpose PVC, high-polymerization PVC and cross-linked PVC. The differences between these PVCs are mainly due to the different initiators and cross-linkers used in the preparation process. Understanding these classifications will help us better select and apply PVC materials.
1. The classification of PVC can be divided into general-purpose PVC resin, high-polymerization PVC resin and cross-linked PVC resin according to its application range. General-purpose PVC is polymerized by vinyl chloride monomer under the action of a specific initiator; high-polymerization PVC is formed by adding a chain extender to increase the degree of polymerization during the polymerization of vinyl chloride monomer; as for cross-linked PVC, a cross-linking agent containing diene and polyene is introduced into the polymerization system to form a resin with a cross-linked structure.
2. Application of PVC in sports products
PVC, a plastic material widely used in many fields, also plays an important role in the field of sports products. Its unique physical and chemical properties make PVC an ideal choice for manufacturing sports products. Whether it is sports shoes, sportswear, or sports equipment, PVC plays an indispensable role. Through exquisite craftsmanship and design, PVC sports products are not only durable and have excellent functionality, but also provide athletes with excellent wearing and sports experience. According to the method of obtaining vinyl chloride monomer, PVC can be divided into two types: calcium carbide method and ethylene method.
3. In addition, PVC can also be classified according to the different plasticizer content. Specifically, PVC plastics are usually divided into the following types: non-plasticized PVC, whose plasticizer content is 0; rigid PVC, whose plasticizer content is less than 10%; semi-rigid PVC, whose plasticizer content is between 10-30%; soft PVC, whose plasticizer content is 30-70%; and polyvinyl chloride paste plastic, whose plasticizer content exceeds 80%.
Application and characteristics of PVC sheets
Among many PVC products, PVC sheets have attracted much attention for their unique properties and wide range of applications. It not only has good processing performance, but also has excellent physical and chemical stability. PVC sheets play an indispensable role in construction, home furnishing, packaging and other fields.
IV. Overview of the synthesis process and manufacturers of PVC sheets
The birth of PVC sheets is not easy, and its synthesis process varies depending on the family background (i.e. production conditions). In resource-scarce environments, such as poor families lacking coal and natural gas, calcium carbide method is usually used for production. This process route requires the collection of raw materials such as calcium carbide, coal and raw salt, but it also brings about greater environmental pollution. In contrast, families with better conditions and sufficient coal and natural gas resources are more inclined to choose the acetylene method for the synthesis of PVC sheets.
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