20 Result(s)
within
**anchun Li
Chemistry
Polymer Sciences
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Article
Crystallization kinetics of a commercial poly(lactic acid) based on characteristic crystallization time and optimal crystallization temperature
A model is proposed to fit differential scanning calorimetry (DSC) isothermal crystallization curves obtained from the molten state at different temperatures. A commercial 3D printing polylactic acid (PLA) sam...
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Article
Boron/potassium nitrate microspheres fabricated by electrostatic spraying and their combustion characteristic as pyrotechnic ignitor
Boron/potassium nitrate (B/KNO3) microspheres are fabricated by electrostatic spraying to enhance their combustion efficiency and capability of igniting target materials. Varying composition’s effect on reactivit...
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Article
Thermal analysis and decomposition kinetics of the dehydration of copper sulfate pentahydrate
The thermal decomposition kinetics of individual stages of copper sulfate pentahydrate (CuSO4·5H2O) was investigated by TG–DSC, and the kinetic parameters were calculated by Ozawa method and multivariate nonlinea...
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Article
Thermal analysis and crystallization kinetics of polyurethane
Non-isothermal crystallization kinetics of polyurethane was investigated by differential scanning calorimetry at different cooling rates. Various macro-kinetic models, including Ozawa, Jeziorny, and Mo models,...
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Article
Electrospun nanofiber-based nanoboron/nitrocellulose composite and their reactive properties
Nanometal fuels have a great potential in energetic field for their high reactivity and their low ignition temperature. However, their high surface energy makes them aggregate. In this work, the electrospinnin...
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Article
Nitroglycerine migration to polyurethane used for inhibition of double-base propellants through thermal analysis techniques
Nitroglycerine (NG) migration in polyurethane (PU) inhibitor, which leads to ballistic malfunctions or tearing-down of the rockets for double-base rocket propellants, is investigated by thermal analysis–thermo...
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Article
Thermal reaction properties of aluminum/copper (II) oxide/poly(vinylidene fluoride) nanocomposite
The thermal reaction properties of the aluminum nanoparticles/copper (II) oxide nanoparticles/poly(vinylidene fluoride) (Al-NPs/CuO-NPs/PVDF) nanocomposite (mass ratio of Al-NPs/CuO-NPs/PVDF = 20/60/20) were i...
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Article
Design and study of ADC/BCN/metal oxide gas-generating agents
Characterized with low burning temperature and low concentration of toxic gases, the azodicarbonamide (ADC), basic cupric nitrate (BCN) and 10 % metal oxide (CuO, ZnO, MnO2, Fe2O3) gas-generating agents have been...
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Article
The effect of 5-amino-1H-tetrazole on the combustion performance and ignition capability of boron/potassium nitrate igniter
The performance of boron/potassium nitrate/5-amino-1H-tetrazole-based pyrotechnic igniter, used as an initiator in airbag gas generators, was investigated. It was found that 5-amino-1H-tetrazole could signific...
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Article
Effect of the antioxidants on the stability of poly(vinyl butyral) and kinetic analysis
The effect of several kinds of antioxidants on the stability of poly(vinyl butyral) (PVB) under air atmosphere is studied by thermogravimetry–differential scanning calorimetry method and kinetic analysis. Afte...
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Article
A model-free method for evaluating theoretical error of Kissinger equation
Kissinger equation is widely used to calculate the activation energy. However, since a number of assumptions and approximations are introduced in the derivation, the activation energy resolved by this method w...
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Article
Thermal decomposition properties of double-base propellant and ammonium perchlorate
The thermal decomposition properties and the heat of combustion (ΔH) of samples with different ammonium perchlorate (AP)/double base propellant (DB) mass ratios under argon atmosphere were studied by the thermogr...
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Article
Thermal decomposition properties of guanidine nitrate and basic cupric nitrate
Characterized with a large gas production and low combustion temperature, the guanidine nitrate (GN) gas-generating agents are studied and applied widely. The determination factors of thermal decomposition pro...
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Article
Effect of MnC2O4 nanoparticles on the thermal decomposition of TEGDN/NC propellant
The effect of MnC2O4 nanoparticles on the thermal decomposition of double-base propellant composed of nitrocellulose (NC) and triethylene glycol dinitrate (TEGDN) has been investigated by TG/DSC–MS–FTIR coupling ...
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Article
Supplement on applicability of the Kissinger equation in thermal analysis
The relative errors (e%) in the determination of the activation energy from the slope of the Kissinger straight line ln(β/βT p 2 ) vs. ...
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Article
Investigation on the thermal stability of nitroguanidine by TG/DSC-MS-FTIR and multivariate non-linear regression
Thermal behavior of nitroguanidine (NQ) has been investigated by TG/DSC-MS-FTIR simultaneous analysis performed under both isothermal and nonisothermal conditions. The isothermal test at 230 °C indicated that ...
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Article
Thermal and Infrared Spectroscopic Studies on Hydrogen-Bonding Interaction between Poly(3-hydroxybutyrate) and Catechin
The effects of catechin on the properties of bacterially synthesized isotactic poly[(R)-3-hydroxybutyrate] (i-PHB) and chemosynthesized highly-syndiotactic poly[(R,S)-3-hydroxybutyrate] (s-PHB) were investigated ...
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Article
The Effect of Crystallization on the Thinning-Thickening Phenomena of Plastic Blend Film in Water Media
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Article
The Hydrogen-Bonding Interactions between 4,4’-Thiodiphenol and Some Poly(hydroxyalkanoic acid)s Revealed by DSC and FT-IR Spectroscopic Analysis
The specific intermolecular hydrogen-bonding interaction between some poly(hydroxyalkanoic acid)s (PHAs) and 4,4’-thiodiphenol (TDP) were studied by DSC and FT-IR. Chemosynthetic poly(3-hydroxypropionate), bac...
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Article
Study on Thermal and Mechanical Properties of Biodegradable Blends of Poly(ε-caprolactone) and Lignin
The phase structure and physical property were investigated for blends of poly(ε-caprolactone) (PCL) and lignin, both of which were biodegradable polymers. The blend was prepared by mechanical mixing and solut...
