Effects of an intercalating agent on the morphology and thermal and flame-retardant properties of low-density polyethylene/layered double hydroxide nanocomposites prepared by melt intercalation

2011 ◽  
Vol 123 (1) ◽  
pp. 316-323 ◽  
Author(s):  
Lei Ye ◽  
Qianghua Wu
Keyword(s):  
Flame Retardant ◽  
Layered Double Hydroxide ◽  
Low Density Polyethylene ◽  
Low Density ◽  
Melt Intercalation ◽  
Flame Retardant Properties ◽  
Double Hydroxide

The synthesis of organically modified layered double hydroxide and its effect on the structure and physical properties of low-density polyethylene/ethylene–vinyl acetate blends

2019 ◽  
Vol 27 (5) ◽  
pp. 287-298
Author(s):  
Xincheng Guo ◽  
Mengqi Tang ◽  
Na Wang ◽  
Lingtong Li ◽  
Yifan Wu ◽  
...  
Keyword(s):  
Vinyl Acetate ◽  
Layered Double Hydroxide ◽  
Organic Anion ◽  
Ethylene Vinyl Acetate ◽  
Degree Of Crystallinity ◽  
Low Density Polyethylene ◽  
Low Density ◽  
Organically Modified ◽  
The Matrix ◽  
Double Hydroxide

Organically modified layered double hydroxide (OM-LDH) was synthesized via anion exchange reaction and potassium monolauryl phosphate (MAPK) was used as an intercalator. The OM-LDH nanofillers were embedded into low-density polyethylene/ethylene–vinyl acetate (LDPE/EVA) via melt blending process which provided LDPE/EVA/OM-LDH nanocomposites. The structure and properties of the fabricated samples were characterized through Fourier transform infrared spectroscopy, X-ray diffraction techniques, scanning electron microscopy, thermogravimetric analysis, differential scanning calorimetry, and tensile testing. The results showed that the organic anion was intercalated into the interlayer region of LDH and enlarged the interlayer distance. The TGA results of the nanocomposites showed significantly improved thermal stability at a higher temperature when containing 6 wt% OM-LDH due to the good dispersion of OM-LDH in the matrix. The DSC data indicated that the degree of crystallinity was increased obviously due to the incorporation of OM-LDH in the matrix. The formation of organic side chains on the OM-LDH surface also contributed to an improvement in the interfacial adhesion, resulting in enhanced tensile strength and elongation at break compared with LDH.

Synergistic flame retardant properties of a layered double hydroxide in combination with zirconium phosphonate in polypropylene

RSC Advances ◽  
2016 ◽  
Vol 6 (94) ◽  
pp. 91720-91727 ◽  
Author(s):  
Ting Jiang ◽  
Changhua Liu ◽  
Li Liu ◽  
Jing Hong ◽  
Ming Dong ◽  
...  
Keyword(s):  
Flame Retardant ◽  
Layered Double Hydroxide ◽  
High Performance ◽  
Zirconium Phosphonate ◽  
Flame Retardant Properties ◽  
Synergistic Flame Retardant ◽  
Double Hydroxide

High-performance flame retardant nanocomposites were prepared for polypropylene (PP).

Investigation on Flame Retardant and Thermal Properties of Novel Intumescent Flame Retardant Low-Density Polyethylene Composites

2012 ◽  
Vol 548 ◽  
pp. 64-67 ◽  
Author(s):  
Xue Li Liu ◽  
Shi Bin Nie ◽  
Guang Long Dai
Keyword(s):  
Thermal Properties ◽  
Flame Retardant ◽  
Synergistic Effects ◽  
Weight Ratio ◽  
Intumescent Flame Retardant ◽  
Low Density Polyethylene ◽  
Low Density ◽  
Flame Retardant Properties ◽  
Ldpe Composites ◽  
Microencapsulated Ammonium Polyphosphate

A novel intumescent flame retardant low-density polyethylene (LDPE) composite was prepared based on bamboo fiber (BF) and silica-gel microencapsulated ammonium polyphosphate (MCAPP). The synergistic effects between BF and MCAPP on the flame retardant and thermal properties of flame retardant LDPE composites were investigated. The results show that the flame retardant properties of LDPE composites are influenced by the weight ratio of BF and MCAPP. The higher content of MCAPP, the better flame retardant property can be obtained. When the ratio of BF/MCAPP is 1:1, the flame retardant LDPE composite shows excellent flame retardant properties.

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