1) thermal degradation
热降解
1.
Study on the thermal degradation of anhydride cured epoxy resin by TGA-FTIR;
TGA-FTIR研究环氧/酸酐固化物热降解行为
2.
Study on flame retardant and thermal degradation behavior of phosphorus-containing copolyester fiber;
含磷共聚酯纤维的阻燃及热降解性能研究
3.
Study on thermal degradation process and mechanism of PA 1111;
PA1111的热降解过程和机理研究
2) thermal decomposition
热降解
1.
To develop thermally stable flavor,the thermal decomposition process and pyrolysis products of the leaf alcohol-β-D-glucopyranoside(LGLY) were investigated by thermo-gravimetric and simultaneous differential thermal analysis(TGA/SDTA),differential scanning calorimeter(DSC) and on-line pyrolysis-gas chromatography-mass spectroscopy(Py-GC-MS).
为了开发热稳定型香原料,采用热重分析/同步差热分析法(TGA/SDTA)、差示扫描量热法(DSC)和在线热裂解气相色谱质谱法(Py-GC-MS)对叶醇糖苷的热降解行为及产物进行了研究。
2.
The effects of nano-LDHs on the thermal decomposition behavior and smoke density of UPVC were studied.
实验表明,LDHs对于PVC脱除HCl的起始温度影响不大,但减少了脱除HCl的质量损失,提高了碳骨架分解的起始温度,明显增加了PVC热降解的残炭量,降低了PVC燃烧烟密度;说明LDHs分解产生的LDO在PVC的热分解过程中起着重要的稳定作用。
3.
The thermal decomposition of polystyrene was characterized with the experiential intrinsic viscosity equation, and this method could greatly simplify the experiment process.
采用经验特性粘度方程表征聚苯乙烯(PS)的热降解可以大大简化试验过程。
3) heat degradation
热降解
1.
： The effect of light， heat， PH on the stability of grape pigment was investigated and the quantitative analysis for the heat degradation of grape pigment in different temperature was studied． the result shows that the grape pigment is unstable to PH， heat and light． The heat degradation of grape pigment is a first order reacton kinetics and the degradation reaction activated enerny is 62．6KJ／mol
考察了pH值、光照、温度对葡萄皮色素稳定性的影响，对不同温度下葡萄皮色素的热降解进行了定量分析。
2.
Study on synthesis and heat degradation behavior of poly(L-lactide);
研究了聚乳酸在0~120min和180~210℃的条件下热降解后的相对分子质量与端羧基含量的变化。
4) thermooxidative degradation
热氧降解
1.
Study on the crosslinking level of vulcanization of peroxide prevulcanized natural rubber latex and thermooxidative degradation of its medical latex products;
过氧化物预硫化天然胶乳硫化反应的交联度及其医用胶乳制品热氧降解的研究
2.
To explore the effect of water-soluble matter and acetone-soluble matter on the thermal stability of the skim rubber, the thermooxidative degradation of the skim rubbers in air were studied by the thermogravimetric analysis.
为探讨水溶物和丙酮溶物对胶清橡胶的热稳定性的影响,采用热重分析法研究了胶清橡胶在空气气氛中的热氧降解行为。
3.
This paper deals with the study of the thermooxidative degradation reaction mechanism and ultrastructure of the medical natural rubber latex tubes prepared with peroxide prevulcanized natural rubber latex(PPVL) by the thermogravimetric analysis(TGA) and SEM.
本文使用过氧化物预硫化天然胶乳(PPVL)制备医用天然胶乳胶管,并采用热重分析法(TGA)和扫描电镜(SEM)研究胶管试样的热氧降解机理和超微结构的变化。
5) thermal oxidation
热氧降解
1.
The results showed that POM follows the first-order kinetic relationship at the first stage of thermal oxidation.
通过等温热失重(TG)和残留物红外光谱(FTIR)研究了聚甲醛(POM)在空气条件下的热氧降解动力学及机理,讨论了温度对聚甲醛初始降解速率以及热老化寿命的影响。
6) thermal oxidative degradation
热氧降解
1.
Thermal degradation and thermal oxidative degradation will take place during PET manufacturing.
聚酯生产中会发生热降解和热氧降解等副反应 ,聚酯合成中需加入稳定剂抑制副反应。
2.
The kinetics of the thermal oxidative degradation of FR-TPEE blends were investigated by non-isothermal thermogravimetric analysis in air.
为了考察自制膦酸酯阻燃剂(DP-FR)对热塑性聚酯弹性体(TPEE)热性能的影响,测得了阻燃TPEE(FR-TPEE)共混材料空气气氛下非等温热重(TG)数据,利用Kissinger和Flynn-Wall-Ozawa两种动力学方法,分别求得了FR-TPEE热氧降解反应活化能Ea。
补充资料：热降解
分子式：
分子量：
CAS号：
性质：聚合物在加热时所发生的降解反应。热降解反应有三种：（1）加热时侧基消除，如聚氯乙烯受热脱HCl，聚乙酸乙烯酯脱乙酸等，其特点是随加热温度的增高或时间的延长，消除反应加剧、颜色变褐，但一般主链不断裂，对性能影响不大；（2）无规降解，加热时聚合物主链从中部弱键处断裂，如聚乙烯、聚丙烯的热降解。其特点是分子量下降、状态变粘、力学性能大幅度下降，但质量变化不大；（3）拉锁降解，从聚合物的链端开始降解，像拉锁一样一个一个地降解为单体。如聚甲基丙烯酸甲酯和聚四氟乙烯的热降解均属此类。
分子量：
CAS号：
性质：聚合物在加热时所发生的降解反应。热降解反应有三种：（1）加热时侧基消除，如聚氯乙烯受热脱HCl，聚乙酸乙烯酯脱乙酸等，其特点是随加热温度的增高或时间的延长，消除反应加剧、颜色变褐，但一般主链不断裂，对性能影响不大；（2）无规降解，加热时聚合物主链从中部弱键处断裂，如聚乙烯、聚丙烯的热降解。其特点是分子量下降、状态变粘、力学性能大幅度下降，但质量变化不大；（3）拉锁降解，从聚合物的链端开始降解，像拉锁一样一个一个地降解为单体。如聚甲基丙烯酸甲酯和聚四氟乙烯的热降解均属此类。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条