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Enhancing Silicone Rubber Performance with Precipitated Silica: A Key to Stability and Strength
Product:Precipitated silica(SiO2) for food grade silicone rubber
Item No.:JS-130
CAS. NO.:7631-86-9
Delivery time:20days after receipt of your payment
HS CODE:281122
Silicone rubber, with its exceptional properties like heat resistance and oxidation resistance, has carved a niche for itself in industries ranging from aviation to automotive. Yet, the integration of precipitated silica takes this material's performance to unprecedented heights. This article explores the transformative role of precipitated silica in silicone rubber applications.
The function of precipitated silica in silicone rubber:
1.Harnessing the Power of Silicone Rubber
Silicone rubber, a polymer with methylvinylsiloxane units, boasts an array of superior attributes such as its remarkable high-temperature resistance), oxidation resistance, and radiation resistance. These properties have solidified its status in high-stakes sectors like aerospace, automotive, and mechanical engineering.
2.The Role of Precipitated Silica
The incorporation of precipitated silica into silicone rubber formulations is a strategic move to bolster the material's stability and aging resistance. Here's how it contributes:
3.Enhanced Physical Properties: By increasing the hardness and tensile strength, precipitated silica fortifies the silicone rubber's structural integrity.
4.Improved Anti-Aging Performance: It provides a shield against oxidation and UV rays, ensuring the longevity and reliability of silicone rubber products.
5.Regulated Rheological Properties: Adjusting the viscosity and flow characteristics, precipitated silica ensures the silicone rubber's processability aligns with manufacturing needs.
Our precipitated silica is meticulously produced to meet the stringent requirements of the silicone rubber industry. It's more than a filler-it's a catalyst for performance enhancement.
While precipitated silica offers numerous benefits, the method of addition and the quantity used can significantly affect the final product's quality. For expert guidance on integrating precipitated silica into your silicone rubber production, consult with our technical team.

JS-160
|
Test Methods |
Properties |
Units |
Target Values (Spec Limits) |
Actual Values |
|
HG/T3065-2008 |
Loss on drying (2Hrs,105℃)加热减量 |
% |
Max.6.0 |
5.15 |
|
HG/T3066-2008 |
Ignition loss 1000℃ 灼烧减量 |
% |
Max.6.0 |
3.90 |
|
HG/T3072-2008 |
DBP absorption value DBP吸收值 |
cm3/g |
2.3-2.6 |
2.48 |
|
HG/T3067-2008 |
pH value (10%aqueous suspension) pH值 |
- |
6.0-8.0 |
6.58 |
|
HG/T3062-2008 |
SiO2 (Dry Basis) 二氧化硅(干基) |
% |
Min.96 |
98.4 |
|
HG/T3073-1999 |
BET specific surface area BET比表面积 |
m2/g |
140-170 |
148 |
|
Soluble salt (Na2SO4) 可溶性盐 |
% |
Max.0.5 |
0.25 |
Q&A
The Art of Adding Precipitated Silica
Precipitated silica is typically added to silicone rubber in either a precipitated or dried form, with the precipitated method being the most widely adopted. This method allows for precise control over particle size and distribution, which is paramount for tailoring the silicone rubber's physical and rheological properties.
Precipitated silica is not just an additive; it's an essential component that enhances the capabilities of silicone rubber. By improving its stability, physical strength, and processability, it ensures silicone rubber remains a top choice for demanding applications.
Elevate your silicone rubber products with the incorporation of precipitated silica. Contact us to learn how our precipitated silica can fortify your formulations and meet the rigorous demands of your industry.
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