How to set material param for Particle System?

Development Programming & Scripting C++
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1

Hi! I need change material parameter value for Particle System (mesh emitter, with 1 material on it) this code invoke when Projectile hit some thing, and it do not work((

  UParticleSystemComponent* PS = UGameplayStatics::SpawnEmitterAtLocation(GetWorld(), ExplosionEffectExplosion, pos, GetActorRotation(), true);
  
  if (PS)
  {
    UMaterialInterface* Material = PS->GetMaterial(0);
    if (Material)
    {
      UMaterialInstanceDynamic* MatInstance = UMaterialInstanceDynamic::Create(Material, PS);

      MatInstance->SetScalarParameterValue("MAT_TIME_NORMALIZED", 0.1f);

      if (MatInstance)
        PS->SetMaterialParameter("MAT_TIME_NORMALIZED", MatInstance);
    }
  }

how to change params for PS any ideas about this ?