Cable material flame retardant and smoke suppression filler 2335 is a high-end specialized functional filler developed and produced by Taixing. It is designed to solve the industry pain points of cable insulation layer and sheath material, such as "flame retardancy not meeting standards, smoke emissions exceeding standards, mechanical performance degradation, and high processing precipitation risks". Different from the shortcomings of general fillers such as "heavy filling, light function", this product achieves a quadruple core breakthrough of efficient flame retardancy, ultimate smoke suppression, mechanical enhancement, and process adaptation. It can be compounded with magnesium hydroxide, aluminum hydroxide, and phosphorus nitrogen flame retardants and is widely used in the fields of medium and low voltage power cables, mining cables, rail transit cables, etc. It is the core supporting material for cable enterprises to overcome global environmental barriers, reduce costs and increase efficiency.
By using the hydrothermal method for precise temperature control of sheet-like crystal cultivation technology, low aspect ratio sheet-like zinc borate crystals adapted to the molecular chain structure of cable substrates are directionally synthesized. The sheet-like crystals can form a "layered barrier network" inside the cable material, which not only improves flame retardant and smoke suppression efficiency, but also avoids damage to the flexibility of the material; The supporting epoxy amino bifunctional grafting modification process is used to construct an active functional group layer on the crystal surface that is highly compatible with substrates such as PE, PVC, XLPE, etc., strengthening the interfacial bonding force and completely solving the industry problems of uneven dispersion of inorganic fillers, processing precipitation, and large loss of mechanical properties. The particle size of the product is precisely controlled within 2-5 μ m, and its compatibility with cable substrates is improved by 65% compared to general fillers. The smoke suppression efficiency is increased by more than 70% compared to traditional flame retardant systems.
1. Melt film-forming barrier flame retardant: During the combustion stage of cable materials, the filler 2335 is dehydrated step by step to absorb heat, and the boronic ester components released by decomposition crosslink with the pyrolysis products of the substrate, forming a dense glassy flame retardant carbon layer that covers the surface of the cable material to block oxygen and heat transfer, while suppressing melt dripping, helping the cable material easily pass the UL 1581 VW-1 vertical combustion test and GB/T 18380 bundled combustion standard, eliminating the risk of flame spread.
2. Targeted smoke suppression, toxicity reduction, and deodorization: Boron containing gas-phase components can accurately capture toxic gases such as hydrogen chloride and carbon monoxide produced during the combustion of cable materials, as well as the core components of smoke particles (carbon black, polycyclic aromatic hydrocarbons), cutting off the path of toxic smoke generation; At the same time, it suppresses the release of odors during the substrate pyrolysis process, reducing the smoke density (SDR) of cable materials by more than 70%, and the concentration of toxic gases meets the EN 50265 low smoke halogen-free standard, greatly improving visibility and safety during fire evacuation.
3. Interface compatibility enhancement mechanics: The dual functional group modified layer forms physical entanglement and chemical cross-linking with the molecular chain of the cable substrate, filling the interface gap between the inorganic filler and the organic substrate, and improving the tensile strength and elongation at break of the cable material; The tensile strength retention rate of the added PE sheath material is ≥ 92%, and the elongation at break of the PVC sheath material is ≥ 300%, solving the problems of material brittleness and easy cracking caused by traditional fillers.
4. Anti precipitation and stable processing adaptation: The modified filler 2335 is evenly dispersed in the cable material, without agglomeration or migration, and can adapt to the conventional extrusion processing temperature of 160-220 ℃ for cable material. It will not cause production defects such as additive precipitation, rough product surface, and broken wires due to high temperature processing, improving cable production efficiency and finished product qualification rate.
1. Accurately adapt to cable standards
-Double standard for flame retardancy and smoke suppression: When combined with aluminum hydroxide for PVC cable materials, the addition amount is only * * 8% -12% * *, which can replace 30% -50% antimony oxide, making the material achieve UL 1581 VW-1 flame retardant level and reducing smoke density (SDR) by 70%; When used for PE cable materials, it can increase the oxygen index by 3-5 units and easily pass the IEC 60332-1-2 single burning standard.
-Zero halogen, environmentally friendly, and non-toxic: 100% halogen-free, antimony free, and heavy metal free, with no corrosive gas emissions during combustion
-Excellent special performance: outstanding aging resistance, after 1000 hours of UV aging test, the decay rate of flame retardant and smoke suppression performance is ≤ 5%; The anti-static performance meets the standard and can be used for the production of mining cables, complying with the MT 818 mining cable safety standard.
2. Improve the mechanical performance of cables
-Improve the flexibility and bending resistance of cable materials, avoid sheath damage during cable laying, dragging, and low temperature environments, and reduce safety hazards such as leakage and short circuits.
-Excellent compatibility with plasticizers, stabilizers, and other additives in cable substrates, without affecting the material's weather resistance and acid alkali corrosion resistance, extending the service life of cables to more than 15 years.
3. Process friendly and efficient, reducing cable production costs
-Excellent compatibility with cable substrates such as PE, PVC, XLPE, etc., without the need for additional dispersants or lubricants, reducing the comprehensive procurement cost of additives by 10% -15%.
-The decomposition temperature can reach up to 310 ℃, far exceeding the processing temperature of cable materials. It will not cause product bubbles or yellowing due to premature decomposition, improving production efficiency and reducing waste loss.
-Supports packaging forms such as 25kg paper plastic composite bags and 500kg ton bags, meeting the dual needs of small batch trial production and large-scale procurement for cable enterprises.
Scenario 1: High performance halogen-free low smoke (LSZH) communication and power cables
·Challenge: EVA/PE based LSZH material needs to be filled with a large amount of ATH (>60%) to achieve V-0, resulting in high material density, rigidity, difficulty in extrusion, and possible decrease in water resistance.
·Solution: Partially replace ATH with 10-20% (e.g. add 6-12phr ZB-2335 to 60phr ATH). The synergistic effect of its system can reduce system density, improve processing fluidity and extrusion surface quality, and enhance the environmental stress cracking resistance of the sheath while maintaining or even improving the flame retardant level (through IEC 60332-3), comprehensively improving cable performance and cost-effectiveness.
Scenario 2: Environmentally friendly (antimony free, lead-free) PVC building cables
·Challenge: After fully replacing lead salts with calcium zinc stabilizers, it is necessary to simultaneously solve three major problems: flame retardancy (replacing antimony), smoke suppression, and long-term thermal aging stability, without compromising electrical performance.
·Solution: As the core flame retardant synergistic effect and smoke suppression partner of the calcium zinc system. Its chemical synergy with calcium and zinc enhances thermal stability; Its efficient HCl synergistic and catalytic char formation mechanism achieves high oxygen index and extremely low smoke emission without antimony; Its high purity ensures electrical performance. It is the key to achieving high-performance green PVC cables that comply with RoHS/REACH.
Scenario 3: Oil resistant and weather resistant special cable sheath
·Challenge: TPU, CPE or special PVC sheaths need to maintain flexibility, flame retardancy and color stability in complex chemical and climatic environments.
·Solution: Its stable chemical properties and optimized interface combination can reduce the erosion of the filler matrix interface by oil agents and climate aging factors.
Q1: What is the core difference between cable material flame retardant and smoke suppressing filler 2335 and universal filler?
A1: General fillers only play a filling role, with poor flame retardant and smoke suppression effects, and can easily lead to a decrease in material mechanical properties; This product is a specialized formula for cables, using a sheet-like crystal structure and dual functional group modification, which combines the triple effects of efficient flame retardancy, ultimate smoke suppression, and mechanical enhancement, and has no risk of precipitation.
Q2: Is there any risk in introducing it into an already mature and stable cable formula? How to control?
A2: Any change carries potential risks, but can be minimized through scientific methods. The risk mainly stems from disturbances to the existing precision balance. Our suggestion is "gradual substitution and systematic monitoring":
1. Starting with a small proportion: Replace an equal amount of inert filler or part of the main flame retardant with a small proportion of 3-5 phr.
2. Iterative optimization: Based on the results of the pilot test, fine tune the lubrication system or the proportion of the main flame retardant to find a new optimization balance point.
Q3: How does the value of pursuing extremely low-cost formulas manifest?
A3: Under the extreme cost orientation, its value is reflected in "unit cost efficiency" and "systematic cost savings".
·Efficiency: Its efficient synergistic effect may allow for a reduction in the use of more expensive primary flame retardants (such as specific encapsulated ATHs) or smoke suppressants.
·Systematic savings: Its improved processing fluidity may increase extrusion speed (yield increase), its enhanced thermal stability may reduce scrap rate, and its enhanced weather resistance may reduce customer complaints. The savings in these implicit costs are of great significance in large-scale production. Total Cost of Ownership (TCO) analysis is often positive.
Q4: Do you provide formula recommendation packages for specific cable standards (such as UL 94, IEC 60332-3, EN 50399)?
A4: Yes. We not only provide products, but also offer solution packages based on target authentication. We have developed an internally validated basic formula framework and key process window recommendations for common certification targets, such as PVC wires passing UL VW-1 and IEC 60332-1, or LSZH cables passing EN 50399 CA S1 level. Customers can use this as a foundation to quickly adapt and optimize their own raw materials and equipment, significantly reducing the R&D and certification cycle.
If you are looking for cable material flame retardant and smoke suppression filler 2335, cable material special functional filler, Taixing will be your best partner, and we will offer the most favorable cooperation price. Welcome to negotiate!
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