The influence of typical layered inorganic compounds on the improved thermal stability and fire resistance properties of polystyrene nanocomposites

2015 ◽  
Vol 38 ◽  
pp. E320-E330 ◽  
Author(s):  
Jiajia Liu ◽  
Youji Tao ◽  
Keqing Zhou ◽  
Yongqian Shi ◽  
Xiaming Feng ◽  
...  
2016 ◽  
Vol 18 (31) ◽  
pp. 21903-21912 ◽  
Author(s):  
Alice S. Cattaneo ◽  
Chiara Ferrara ◽  
Adriana Mossuto Marculescu ◽  
Francesco Giannici ◽  
Antonino Martorana ◽  
...  

Hybrids obtained via intercalation of alkylamines or propanol show peculiar structure and thermal stability, which are influenced by the nature and the amount of the intercalated chains.


2017 ◽  
Vol 744 ◽  
pp. 27-31
Author(s):  
Anton Ustinov ◽  
Eugene Pitukhin ◽  
Alexander Pitukhin

The properties of “water glass – graphite microparticles” composite material (CM) have been researched and qualitative and quantitative phase analysis of the CM structure has been done. Experimental samples of the CM with filler particles (graphite) and a few micrometers in size have been studied with X–ray diffraction and electron microscopy. Fire–resistance test of the composition has been conducted. Fire–resistance limit for the test samples of composite material is determined by the loss of its insulating ability (I). Fire–resistance limit I15 equal to 15 minutes has been obtained in accordance with the requirements of regulatory documents. It is shown that the research material is characterized by thermal stability and maintains its composition and structure under high temperature exposure. Composite material with the obtained characteristics can be used as protective coatings for building structures to increase fire resistance and reduce fire hazard.


2019 ◽  
Vol 68 (1) ◽  
pp. 16-19
Author(s):  
Sandra Flinčec Grgac ◽  
Franka Žuvela Bošnjak ◽  
Boris Valečić ◽  
Jadranka Akalović

This paper aims to investigate fire resistance properties of two samples of fireproof bovine leather; both with smooth and perforated brushed surfaces. Apart from flammability and flame spreading, an important property is heat resistance and the development of gaseous products that occur during heat degradation. For the purpose of characterizing those properties, cowhide leather samples were exposed to thermogravimetric analysis (TGA) of monitoring gaseous degradation products (TG-IR) during decomposition. Considering the results of fire resistance, it can be concluded that tested samples of smooth bovine leather show satisfactory stability to the influence of flame and heat, while perforated brushed fireproof leather with artificial surface was partially pouched and gathered in the area of direct contact with flame. Both samples show similar behavior during TGA, but differences have been observed in the analysis of gaseous degradation products.


2013 ◽  
Vol 785-786 ◽  
pp. 729-734
Author(s):  
Hua Zhang ◽  
Jun Lai ◽  
Yan Gao ◽  
Kan Lai ◽  
Wei Shi

Based on the thermal stability test on the different fire resistance materials, this article study the Thermal protection property (TPP) of the different materials composite structure and analyses the effect that the materials changes on the TPP of the composite structure products. The results indicate that the thermal insulation batts made by Aramid fiber materials have excellent thermal stability, adding a certain percentage of Aramid fiber 1414 into the thermal insulation batts makes for the batts having stably insulation function, and it only needs 10% around additive amount to satisfy this demand, compared with polyimide and PPS, Aramid fiber 1414 have better thermal stability when encountered fire.


2017 ◽  
Vol 170 ◽  
pp. 133-139 ◽  
Author(s):  
Ying Pan ◽  
Wei Wang ◽  
Longxiang Liu ◽  
Hua Ge ◽  
Lei Song ◽  
...  

2021 ◽  
Vol 72 (3) ◽  
pp. 245-254
Author(s):  
Bita Moezzipour ◽  
Aida Moezzipour

Today, recycling is becoming increasingly important. In recycling process, the product performance should also be considered. In this study, manufacturing insulation fiberboard, as a practical wood product from recycled fibers, was investigated. For this purpose, two types of waste (MDF wastes and waste paper) were recycled to fibers and used for producing insulation fiberboards. The target fiberboard density was 0.3 g/cm3. The ratio of waste paper to MDF waste recycled fibers (WP/RF) was considered at two levels of 70/30 and 50/50. Polyvinyl acetate adhesive was used as a variable in the board manufacturing process. The mechanical properties, dimensional stability, thermal conductivity, and fire resistance of the boards were evaluated. Besides, the thermal stability of fiberboards was studied using thermal analysis including thermogravimetric analysis (TGA) and differential thermal analysis (DTA). The results showed that the insulation fiberboards had admissible mechanical properties and dimensional stability. The manufactured boards displayed low thermal conductivity, which proved to be well competitive with other insulation materials. The fiberboards manufactured with PVAc adhesive and WP/RF ratio of 50/50 had higher fire resistance compared to other treatments. Additionally, results of thermal analysis showed that the use of PVAc adhesive and WP/RF ratio of 50/50 leads to improved thermal stability. Overall, the recycled fibers from MDF and paper wastes appear to be appropriate raw materials for manufacturing thermal insulation panels, and use of PVAc adhesive can significantly improve thermal and practical properties of insulation fiberboards.


2021 ◽  
Vol 63 (11) ◽  
pp. 66-69
Author(s):  
Vu Thang Tran ◽  
◽  
Thi Phuong Hoang ◽  
Ngo Vu Duong ◽  
Thi Phuong Hong Dao ◽  
...  

In this paper, the effects of a flame retardant system combining ATH/MPP (aluminum hydroxide/melamine phosphate) and the other additives such as zinc stearate (ZnSt) on some properties of flame retardant PE compound based on LDPE were studied. The total flame retardant content was 35% by weight. Mechanical properties (tensile at break, elongation at break), thermal stability, and fire resistance were determined by the respective methods ASTM D638, thermogravimetric analysis (TGA), scanning electron microscope (SEM), and UL-94 test. The obtained results showed that using the combination of ATH/MPP has increased the fire resistance and thermal stability of the PE compound. The sample CT7 (15%ATH/20%MPP/2%ZnSt) achieved the best fire resistance. The mechanical properties increased slightly when increasing the content of MPP and reached the maximum for samples containing only MPP. The SEM micrographs showed that the addition of zinc stearate improved the dispersion of ATH and MPP in the PE matrix. The effect of flame retardant additives and zinc stearate on the melt index value of the PE compound was also surveyed.


2021 ◽  
Vol 320 ◽  
pp. 128729
Author(s):  
Xijin Zhang ◽  
Xudong Fan ◽  
Chanjuan Han ◽  
Yanjun Li ◽  
Erik Price ◽  
...  

Proceedings ◽  
2019 ◽  
Vol 29 (1) ◽  
pp. 70
Author(s):  
George Mihail Teodorescu ◽  
Zina Vuluga ◽  
Mihai Cosmin Corobea ◽  
Cristian Andi Nicoale ◽  
Augusta Raluca Gabor ◽  
...  

In specific fields of the industry (e.g., aircraft and automotive industry), plastic materials with high performance (improved scratch resistance, fire resistance, thermal stability, and high mechanical properties) are required. [...]


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