In February 2026, a professional solution has emerged for the imbalance between flame retardancy and toughness in the resin modification field. It is found in the industry that the addition of flame retardants easily leads to a sharp increase in resin brittleness and a plummet in impact strength, which is even worse in low-temperature environments. The core reason is that most flame retardants are rigid particles with poor compatibility with resins, forming stress concentration points, while damaging the flexibility of molecular chains. The "freezing" of molecular chains at low temperatures will further amplify the embrittlement problem. Targeting this pain point, the industry has proposed a solution of scientific blending of tougheners and compatibilizers, achieving performance balance in three steps: selecting special tougheners matching the resin system to build an elastic protection zone, adding compatibilizers to eliminate interface gaps and reduce stress concentration, and adding low-temperature resistant tougheners in low-temperature working conditions to lower the glass transition temperature. This solution resolves the contradiction from the structural and molecular motion levels. Through precise additive selection and ratio control, flame-retardant resins balance safety and service performance, meeting the application requirements of multiple scenarios.
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