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发布时间:2019-08-13 00:00:00
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HB-152

HB-152 is hydrophobic fumed silica which is produced by HL-200 after chemical post-treatment with DDS ( Dimethyldichlorosilane ).
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Product description

Characteristics

HB-152 is hydrophobic fumed silica which is produced by HL-200 after chemical post-treatment with DDS ( Dimethyldichlorosilane ).

 

Applications

RTV silicone rubber,especially RTV-T

Adhesives & Sealants

Coatings & Printing ink

Powder Coating

Properties

Good hydrohpobicity, thixotropy, thickening, transparency and reinforcement performance

Anti-settling and anti-sagging agent

Free flow aid and anti-caking aid for powders

Thixotropy and reinforcement in RTV silicone sealants, the hydrophobic feature gives RTV silicone sealants a long shelf-life

 

Physical & Chemical Data

Properties Unit Typical Value Testing Method
pH value in 4% dispersion (H2O:Ethanol=1:1) - 3.7~4.5 GB/T 20020
Loss on drying(2 hours at 105℃) % ≤0.7 GB/T 20020
Loss on ignition(2 hours at 1000℃ based on material dried for 2 hours at 105℃) % ≤2.5 GB/T 20020
Silica Content(Based on ignited material) % ≥99.8 GB/T 20020
Tamped Density(Based on material dried at 105℃ for 2 hours) g/dm² 40~60 GB/T 20020
Carbon Content (Based on material dried at 105℃ for 2 hours) % 0.8~1.6 GB/T 20020

 

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