Silicon Dioxide Used in Silicone Rubber

Silicon Dioxide Used in Silicone Rubber

Silica Filler for Silicone Rubber The use of silica filler for silicone rubber has countless advantages that make it a popular choice among manufacturers. Silica is a naturally occurring mineral that has been proven to be an effective reinforcing agent for elastomers like silicone rubber. It...

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Product Introduction

Jinsha Precipitated Silica Manufacturing Co., Ltd. is one of the leading manufacturers and suppliers of silicon dioxide used in silicone rubber in China. With abundant experience, we warmly welcome you to buy high quality products made in China here from our factory. Contact us for more details.

 

                                                                             Silicon Dioxide Used in  Silicone Rubber

 

The most widely used in rubber is silica, which mainly plays a reinforcing role in vulcanized silicone rubber. Due to the very flexible molecular chains of silicone rubber and the weak intermolecular interactions, the strength of unreinforced rubber is very weak and has no practical value. It must be reinforced before use.

PPT SILICA 2

 

 

Rubber reinforced with  silicon dichloride has good physical properties and is widely used in medical electronics. Its products involve various departments of medicine, such as craniocerebral surgery, facial features, anesthesia, digestive system, cardiac surgery, abdominal surgery, and urinary and reproductive systems.Rubber medical gloves and disposable rubber shuttle gloves, medical rubber hoses and medical silicone rubber catheters, medical bottle stoppers and artificial silicone rubber organs also belong to medical rubber products. As a medical rubber product, it must meet the requirements of non-toxic, chemically inert, non allergic, non pathogenic, non deformable, easy to process and good anti-aging performance. Silicone rubber can basically meet these requirements.

 

Specification:

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

 

Content of Fe

铁含量

Mg/kg

Max.200

145

 

 

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