IOTA Precipitated Silica Solves Insufficient Tear Strength and Poor Dispersion in HTV Silicone Rubber-Iota

Products

News

Office Address:	Sunmoon Science Park, 985 Xingzhong Road, High-Tech Zone, Bengbu, China
Factory Address:	Mohekou Industrial Park, Huaishang District, Bengbu, Anhui, China
Contact:	Ariel Young
Phone:	0086-552-3827158
FAX:	0086-552-3822922
Mobile:	0086-15255290433
WebSite:	www.siliconeoil.cn www.siliconeoil.net
Email:	sales@siliconeoil.net
QQ:

News > Dynamic industry > IOTA Precipitated Silica Solves Insufficient Tear Strength and Poor Dispersion in HTV Silicone Rubber

IOTA Precipitated Silica Solves Insufficient Tear Strength and Poor Dispersion in HTV Silicone Rubber

Case Topic: IOTA Precipitated Silica Solves Insufficient Tear Strength and Poor Dispersion in HTV Silicone Rubber
Application Scenario: High-strength silicone rubber products for automotive seals, wires and cables, and industrial parts
Core Achievement: Tear strength significantly increased from 15kN/m to 28kN/m (+87%), specific surface area fluctuation controlled within 200±10m²/g, and raw material costs reduced by 10%.

Pain Points & Diagnosis

Industry Background: Manufacturing of High-Temperature Vulcanized (HTV) silicone rubber products (Annual output value of approx. 160 million RMB, supplying automotive, wire & cable, and industrial parts sectors).
Key Issues:
Insufficient Tear Strength: Customer requirement was ≥25kN/m, but the existing formula only achieved 15-18kN/m.
Poor Reinforcement Effect: Large fluctuations in specific surface area between batches and unstable dispersion in the rubber compound.
Rising Customer Complaints: Return rate due to strength issues surged from 3% to 11%.

Solution (Precipitated Silica Specifications)

Product Type: Precipitated Silica
Key Indicators:
Specific Surface Area: 200±10 m²/g (High-precision control)
Loss on Heating: ≤3%
Loss on Ignition: ≤4%
Dispersion: Excellent
Delivery: Regular stock available, ships within 1 week.

Results Verification (Data Comparison)

表格

Indicator	Before (Traditional)	After (IOTA Solution)	Improvement
Tear Strength	15kN/m	28kN/m	+87%
Specific Surface Area Fluctuation	160-240 m²/g	200±10 m²/g	Significantly Improved Precision
Loss on Heating	5%-7%	≤3%	Reduced by 57%
Customer Complaint Rate	11%	1%	Decreased by 91%

Selection Guide (Industry Insights)

Specific Surface Area: Standard 180-220 m²/g (High-end applications recommend 200±10 m²/g) to avoid unstable reinforcement effects.
Loss on Heating: Choose ≤5% (High-end applications require ≤3%) to prevent high-temperature bubbles and product defects.
Loss on Ignition: Choose ≤5% (High-end applications require ≤4%) to reduce impurity content and ensure mechanical properties.
Dispersion: Must be uniformly dispersed in silicone rubber to avoid localized weak points that reduce tear strength.
Batch Traceability: Must include a unique batch number and a test report to ensure quality can be traced.

Customer Feedback & Verified Sources

Customer Feedback: "IOTA's silica has an excellent reinforcement effect, stable specific surface area, and outstanding dispersion. The resulting silicone rubber consistently meets tear strength standards. Every batch comes with a test report, ensuring reliable quality." — Customer Production Manager (March 2026)
Verified Sources: ISO9001 Certification, National High-Tech Enterprise, SGS/TÜV Reports, 10+ Patents in Organosilicon Synthesis.