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Functions of Internal and External Lubrication of PVC Lubricant-3

Unbalanced External and Internal Lubrication Over and under lubrication affect the product quality as the processing suffers. Too much internal slippage results in large extrusion volumes and poor material plasticization. If the external slippage is too much, extrusion speed becomes fast, but plasticization is poor. It affects th…

more>>2023-08-12

Functions of Internal and External Lubrication of PVC Lubricant-2

Internal Lubrication of PVC Lubricant An internal lubricant for PVC plays the role of softening or plasticizing. However, it is similar to a plasticizer but is comparatively less compatible with PVC due to its longer carbon chain and lower polarity. As a result, only a small number of lubricant molecules are able to infiltrate in…

more>>2023-08-12

Functions of Internal and External Lubrication of PVC Lubricant-1

PVC needs different additives to prevent its degradation upon heating and shearing to get desired articles. Lubricants are crucial to add during the processing of rigid PVC. They can greatly influence the flow behavior and viscosity of PVC compositions in the processing machinery. Their role can be summarized as follows: PVC Lubr…

more>>2023-08-12

Why is Calcium Stearate So Significant in PVC? -3

Why Choose NOVISTA for Calcium Stearate?NOVISTA has been one leading exporter of integrated PVC & different polymer additives. We have a strong manufacturing and deep research base in PVC additives, including PVC impact modifiers, processing aids, Lubricants, stabilizers... And we can offer you customized PVC additives and CPVC …

more>>2023-06-02

Why is Calcium Stearate So Significant in PVC? -2

Calcium Stearate Uses in PVCThe chief uses of Calcium Stearate in PVC include the following:Calcium Stearate curtails friction between PVC grains during refining when used as an internal lubricant.

more>>2023-06-02

Why is Calcium Stearate So Significant in PVC? -1

Calcium stearate is a white waxy powder referred to as calcium soap. It remains insoluble in most solvents and is biologically safe to use. Unlike wax, it does not get greasy even at increased temperatures because of its comparatively higher softening point.Calcium stearate has numerous uses across several industries. Besides bei…

more>>2023-06-02

Introduction of NOVISA's PVC Heat Stabilizers-4

FAQSWHAT ARE THE BENEFITS OF USING ONE PACK PVC HEAT STABILIZERS?There are several benefits of using our one pack PVC Heat Stabilizers that include: reduced labour cost, reduced handling losses, reduced inventory, a better homogenous mixture from processing. We provide PVC Heat Stabilizers (one pack- lead-based) in powder and fla…

more>>2023-05-26

What are Optical Brightening Agents?

Optical brightening agents (OBAs) / Optical brightener, also known as fluorescent brightening agents (FBAs), are chemical compounds that give whitening effect to fabric. They do this by absorbing light in the ultraviolet and violet regionand re-emit the light in the blue region.This blue light reduces the yellow colour of the sub…

more>>2023-05-26

What Are The Difference Between OB and OB-1?

Optical brightener (OB) and Optical Brightener -1(OB-1) are brightening agents often confused with each other. Both are used for brightening but on different types of materials. Therefore, it is essential to understand the details and differences between them before selecting.What is Optical Brightener(OB)?

more>>2023-05-26

A Brief Introduction of Titanium dioxide (TiO2) -3

Crystal structure:Titanium dioxide has three crystalline forms in nature: rutile, anatase and plate titanium. Plate titanium type belongs to the orthorhombic system, which is an unstable crystal type. It is transformed into rutile type at above 650 ℃, so it has no practical value in industry. Anatase is stable at room temperatur…

more>>2023-05-19

A Brief Introduction of Titanium dioxide (TiO2) -2

6) Hygroscopicity:Although titanium dioxide has hydrophilicity, but its hygroscopicity not very strong, and rutile type is smaller than anatase type. The hygroscopicity of titanium dioxide is related to its surface area. The large surface area and high hygroscopicity are also related to surface treatment and properties.7) Thermal…

more>>2023-05-19

A Brief Introduction of Titanium dioxide (TiO2) -1

Titanium dioxide (TiO2), an important inorganic chemical pigment, is mainly composed of titanium dioxide. The production process of titanium dioxide includes sulfuric acid process and chlorination process. It is widely used in coating, ink, paper making, plastic rubber, chemical fiber, ceramics and other industries.TiO2 physical …

more>>2023-05-19

Introduction of NOVISA's PVC Heat Stabilizers-3

WHY CHOOSE US AS YOUR PVC HEAT STABILIZERS SUPPLIERS?NOVISTA has been a leading name as PVC heat stabilizer manufacturers in the world, known for providing products that are backed by a superior quality guarantee and that conform to international standards. We have a fully-equipped, in-house laboratory with trained and experience…

more>>2023-03-17

Introduction of NOVISA's PVC Heat Stabilizers-2

Conventionally, a combination of three chemicals, TBLS, DBLS, and LS (Tribasic lead sulphate, dibasic Lead stearate, and Lead stearate) were used as heat stabilizers along with Calcium Stearate as a co-stabilizer. NOVISTA Group is the leading manufacture of these single stabilizers in the highest purity and performance.Nowadays, …

more>>2023-03-17

Introduction of NOVISA's PVC Heat Stabilizers-1

NOVISTA is one leading PVC heat stabilizer manufacturers from China, involved in the production of PVC heat stabilizers of premium quality. Starting from a single reactor the company now has grown multi-fold to be the leading PVC additives manufacturer. One of the key players in the PVC additives industry, we have been the prefer…

more>>2023-03-17

Why is Calcium Stearate So Significant in PVC? -3

Why Choose NOVISTA for Calcium Stearate?NOVISTA has been one leading exporter of integrated PVC & different polymer additives.We have a strong manufacturing and deep research base in PVC additives, including PVC impact modifiers, processing aids, Lubricants, stabilizers... And we can offer you customized PVC additives and CPVC co…

more>>2023-02-25

Why is Calcium Stearate So Significant in PVC? -2

Calcium Stearate Uses in PVCThe chief uses of Calcium Stearate in PVC include the following:Calcium Stearate curtails friction between PVC grains during refining when used as an internal lubricant.

more>>2023-02-25

Why is Calcium Stearate So Significant in PVC? -1

Calcium stearate is a white waxy powder referred to as calcium soap. It remains insoluble in most solvents and is biologically safe to use. Unlike wax, it does not get greasy even at increased temperatures because of its comparatively higher softening point.Calcium stearate has numerous uses across several industries. Besides bei…

more>>2023-02-25

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more>>2022-12-10