In this study, an analysis was carried out of the mechanical, thermal, and morphological characteristics of Polybutylene Terephthalate (PBT) and Polyamide (PA6) matrix composites containing ...

2022年11月5日 · In this work, a series of poly (butylene terephthalate-co-glycolic acid) (PBTGA) copolyesters with high molecular weights and different glycolic acid content were synthesized via bulk melt polycondensation.

2009年11月1日 · To assess the condensed phase during pyrolysis, this study presents thermal (by TGA in nitrogen) and condensed phase analyses of the residue (by FTIR–ATR) of PBT modified by a phosphinate FR and/or nanoparticles (sepiolite).

2021年1月15日 · Titanium dioxide (TiO 2) in PBT matrix can shield for UV light, but it triggers further photo-degradation of PBT via a photocatalytic effect. In this work, both toughness and against prolonged UV radiation of PBT from recycled source are significantly improved by reactive compounding with ethylene-vinyl acetate-glycidyl methacrylate copolymer ...

采用热失重仪分别测定PET和PBT在不同扫描速率下的起始分解温度、最大分解温度、失重百分率随温度的变化。 扫描温度范围：PET为50～700 ℃，PBT为50～600 ℃；扫描速率为5、10、20、40 ℃/min；气体流量为20 mL/min。

用热重分析法（tga）探讨聚对苯二甲酸丁二醇酯（pbt）热降解的动力学，揭示了pbt的热稳定性、热解反应级数和热解活化能。 以高纯度氮气为载气，在不同载气流量、不同升温速率下对PBT进行降解，通过失重曲线和微商曲线分析其结构的稳定性，建立反应动力学 ...

2005年1月18日 · The kinetics of the forward polycondensation reaction of polybutylene terephthalate (PBT) has been investigated using thermogravimetric analysis (TGA). PBT - prepolymer with an initial degree of polymerization of 5.5 was used as starting material.

TGA curves for thermo-oxidative decomposition of all materials under synthetic air are presented in Figure 2, and the analysed results are summarised in Table 2. PBT HB decomposed in a two-step...

PBT的热失重标准曲线是指在进行TGA测试时，观察PBT材料的质量变化随温度的变化而得到的曲线。 该曲线通常显示材料的质量百分比随温度的变化。 1. 起始重量损失：在较低温度下，PBT材料可能会发生一些物理或化学变化，导致初始质量损失。 这可能是由于挥发性成分的蒸发或溶解等原因引起的。 2. 主要失重阶段：随着温度的升高，PBT材料会发生主要的质量损失。 这是由于聚合物链的裂解、分解或氧化等反应引起的。 失重速率取决于材料的化学结构和热稳定性。 3. …

A tremendous effect of fusion temperature on the crystallization kinetics of poly(butylene terephthalate) (PBT) was discovered. The crystallization peak shifted 22°C towards lower temperatures ...