1、超韧阻燃PBT材料的制备与性能研究_朱明源_百度文库

然而，PBT 虽综合性能优良，但仍存在对缺口敏感和 缺口冲击强度不足等问题，从而限制其在某些领域的 应用。 对 PBT 进行增韧改性是扩大其应用领域的重 要途径。

2、Effect of phosphorous

As presented in Fig. 7, for PBT composites, all points are shifted from the line R1 = R2, which means that the improvement of fire retardancy of PBT containing silica and more particularly modified silica, is due to physical barrier effect.

3、Novel sustainable biobased flame retardant from functionalized

It was found that the incorporation of only 7.5 wt% of PLO was sufficient to change the UL-94 fire class of PBT from non-rating to V-0. The flame-retardancy mechanism of the PBT/PLO blends...

4、Frontiers

In this study, reactive epoxy groups were introduced onto the surface of the flame retardant (FR) using a simple method. The resulting encapsulated flame retardant (EP@FR) was then incorporated into PBT via a twin-screw extruder.

Study on the Properties of Flame

The ball-milled modified attapulgite (mp-ATP) as synergetic flame-retardant was added together with IFR to prepare PBT-based flame-retardant composites. Result that mp-ATP as synergetic flame-retardant improved the flame-retardant effect of IFR to PBT.

Modified reinforced flame

The invention discloses a modified reinforced flame -retardant PBT material and a preparation method thereof, and belongs to the technical field of polymer engineering plastic modification.

Effect of addition of aluminum phosphinate as fire retardant in a PBT

The vitrimers were synthesized and compounded in a single step by reactive extrusion from commercially available PBT, an epoxy resin, a zinc-based transesterification catalyst, and aluminum phosphinate (AlPi) as a conventional flame retardant additive.

Flame retardancy of basalt fiber

Phosphorus-based FR agents can be one of the effective solutions to improve the flame retardancy properties of highly flammable poly (butylene terephthalate) (PBT) and its composites reinforcing with various high-performance fibers.

Preparation and Characterization of Flame

Hence, the aim of this work is to develop novel materials with excellent fire retardant performance based on the PBT/PET blends and the fire retardant system of TAD and EG.

PBT/flame retardant compositions

This review provides a comprehensive description of the flame retardant effect of boron compounds with general flame retardant mechanisms in natural polymers, biocomposite applications ...

In today’s society, with the continuous advancement of technology and rapid industrial development, the demands for material performance have become increasingly stringent. Particularly in fields such as electronics, automotive manufacturing, and aerospace, the fire resistance of materials directly affects the safety and service life of products. developing high-performance flame-retardant resins has become a critical topic. This article introduces a high-performance modified formula for PBT (polybenzoxazole) fire-retardant resin, aiming to enhance its stability and flame-retardant properties under high-temperature environments.

I. Overview of PBT Resin

Polybenzoxazole (PBZ), also known as polyphenylene oxide, is a thermoplastic polymer with excellent mechanical properties, electrical insulation, chemical stability, and dimensional stability. Due to its comprehensive performance, PBT is widely used in electronics, automotive, and aerospace industries. a significant drawback of PBT is its flammability, which limits its application in scenarios requiring high fire resistance.

II. Necessity of Modification

Due to the inherent flammability of PBT, it must undergo flame-retardant treatment for specific applications. Traditional flame-retardant methods involve adding halogenated or phosphorus-based flame retardants, but these approaches often entail toxic substances or environmental concerns. developing a novel, eco-friendly flame-retardant method has become an urgent priority.

III. Innovation of the Modified Formula

To address the flammability of PBT, this paper proposes a new modified formula for PBT fire-retardant resin. The core innovation lies in the use of a special inorganic nanofiller. During combustion, this filler forms an isolation layer that effectively blocks oxygen contact with the PBT resin, thereby reducing the burning rate and achieving flame retardation.

IV. Composition of the New Modified Formula

1. PBT Resin Matrix: As the primary resin component, PBT provides good mechanical properties and electrical insulation.
2. Inorganic Nanofiller: Materials such as zinc oxide (ZnO) or aluminum hydroxide (Al₂O₃) with high thermal and chemical stability are selected. These fillers form a dense barrier to block heat and oxygen.
3. Flame-Retardant Synergist: Small amounts of synergists like borates or phosphates are added to enhance flame-retardant efficiency when combined with organic flame retardants.
4. Additives: Plasticizers, lubricants, and other additives are incorporated to improve processing and physical properties.

V. Advantages of the Modified Formula

Compared to traditional flame-retardant methods, this new formula offers the following advantages:

1. Eco-Friendly: Eliminates the use of toxic halogenated and phosphorus-based flame retardants, reducing environmental and health impacts.
2. High Efficiency: The isolation layer formed by inorganic nanofillers rapidly inhibits flame spread, improving flame-retardant performance.
3. Durability: The modified PBT retains its mechanical and electrical properties at high temperatures, avoiding failure due to heat.
4. Cost-Effective: Lower production costs and scalability compared to traditional methods.

This paper presents a new modified formula for PBT fire-retardant resin, achieving efficient flame retardation through the introduction of inorganic nanofillers. Compared to traditional methods, this formula demonstrates higher safety, lower environmental impact, and economic viability. In the future, with technological advancements and growing market demand, this innovative formula is expected to find broader applications and development opportunities.