Shandong Novista Chemicals Co.,Ltd (Novista Group)

News

Home > News > The growth of demand for PVC additives industry​

The growth of demand for PVC additives industry​

2019-01-02

With the development of PVC industry, especially the rapid development of plastic profile and plastic pipe industry, the demand for processing aids has also increased rapidly. At present, the PVC auxiliary industry is developing rapidly. Today, we will look at PVC processing aids and make major breakthroughs in the following four directions.

(1) Super plasticizing Processing Aid
It is suitable for large amount of filler, large external sliding dose, weak shearing force of equipment, need to greatly increase shearing force, increase the viscosity of melt strong body, and can make up for the weak shearing force of equipment and the large amount of filler in the formula. The melt viscosity is reduced, which breaks through the defects of the conventional processing aid when the plasticization speed is fast, the melt viscosity is low, and the plastic viscosity is slow when the melt viscosity is large.
(2) Super melt strength processing aid
It is suitable for use when the amount of filler is large, the shearing force of the equipment is strong, and the melt strength needs to be greatly increased. The processing aids are characterized by a general plasticizing speed, but a high melt viscosity, which is more than three times that of the conventional processing aid AcR-401.
(3) Lubricating Processing Aid
Lubricants, especially external lubricants, can reduce the external friction of the melt and metal surfaces, prevent the surface of the melt from rupturing, and improve the surface finish of the product. However, if the shearing force of the equipment is weak, the addition of the external slip agent may cause the plasticization of the product. The mechanical properties are degraded, and the addition of a low molecular weight lubricant causes precipitation, which shortens the driving time. In order to avoid precipitation and plasticization defects caused by excessive use of the external slip agent, a lubricating type processing aid can be used.
(4) ACR for pipe fittings
The processing of PVC pipe fittings requires that the PVC melt must have sufficient plasticization, high melt strength and good fluidity. However, good fluidity and high melt strength are contradictory. Generally, the fluidity is poor when the melt strength is large. Conventional processing aids over-emphasize the melt strength and neglect the fluidity, making the surface gloss of PVC pipe parts poor, and butterfly spots appear in serious cases. Pipe fitting manufacturers have added plasticizers to solve the above problems, although the gloss of the pipe fittings has been significantly improved.
The above 4 points are the direction of the development of the PVC processing aids industry. Novista is constantly researching and developing the processing aids for PVC, CPVC and UPVC processing industry and obtain great progress.


Send Inquiry

Tel:86-536-8206760

Fax:86-536-8206750

Mobile Phone:+8615336365800

Email:manager.han@novistagroup.com

Address:RM1232-1233,#4 Building No.4778 Shengli East Street, Weifang, Shandong

Mobile Site

Home

Product

Phone

About Us

Inquiry

We will contact you immediately

Fill in more information so that we can get in touch with you faster

Privacy statement: Your privacy is very important to Us. Our company promises not to disclose your personal information to any external company with out your explicit permission.

Send