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2MgO.B2O3.H2O/RGO nano-composite flame retardant

A composite flame retardant, 2·6H2O technology, applied in the field of flame retardant, can solve the problems of material mechanical properties reduction, etc., and achieve the effect of improved mechanical properties, good flame retardant effect, and simple preparation method

Inactive Publication Date: 2019-04-05
SHAANXI NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

A large number of flame retardant experiments in our research group have shown that even if the alkaline earth metal borate nano flame retardant material is added to the polypropylene substrate, although the flame retardant effect has been greatly improved, the mechanical properties of the material are significantly reduced, which still limits its application.

Method used

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  • 2MgO.B2O3.H2O/RGO nano-composite flame retardant
  • 2MgO.B2O3.H2O/RGO nano-composite flame retardant
  • 2MgO.B2O3.H2O/RGO nano-composite flame retardant

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] 3.71g (14mmol) Mg(NO 3 ) 2 ·6H 2 O, 1.73g (28mmol) H 3 BO 3 , 1.60g (40mmol) NaOH and 0.1g GO were added to 10mL deionized water, and ultrasonically dispersed at room temperature for 30 minutes at a power of 100W and a frequency of 60kHz with an ultrasonic cleaner, and then transferred to a PTFE-lined container with a volume of 50mL. In a stainless steel reaction kettle, put the reaction kettle in an oven at 240°C for 24 hours, take out the reaction kettle, and cool it to room temperature naturally in the air. °C for 12 hours to obtain 2MgO·B 2 o 3 ·H 2 O / RGO nanocomposite flame retardant.

[0027] The inventor adopts X-ray diffractometer, scanning electron microscope and transmission electron microscope to carry out structure and morphology characterization to the sample obtained in embodiment 1 respectively, and the results are shown in Figure 1~4 . Depend on figure 1 It can be seen that the XRD pattern of the sample contains 2MgO·B 2 o 3 ·H 2 Diffractio...

Embodiment 2

[0032] 3.71g (14mmol) Mg(NO 3 ) 2 ·6H 2 O, 1.73g (28mmol) H 3 BO 3 , 1.60g (40mmol) NaOH and 0.1g GO were added to 10mL deionized water, and ultrasonically dispersed at room temperature for 30 minutes at a power of 100W and a frequency of 60kHz with an ultrasonic cleaner, and then transferred to a PTFE-lined container with a volume of 50mL. In a stainless steel reaction kettle, put the reaction kettle in an oven at 200°C for 18 hours, take out the reaction kettle, and cool it to room temperature naturally in the air. °C for 12 hours to obtain 2MgO·B 2 o 3 ·H 2 O / RGO nanocomposite flame retardant. Depend on Figure 6 and Figure 7 It can be seen that the obtained sample can be assigned as 2MgO·B 2 o 3 ·H 2 The complex of O and RGO.

Embodiment 3

[0034] 3.71g (14mmol) Mg(NO 3 ) 2 ·6H 2 O, 1.20g (19mmol) H 3 BO 3 , 0.95g (24mmol) NaOH and 0.2g GO were added to 10mL deionized water, and ultrasonically dispersed at room temperature for 30 minutes at a power of 100W and a frequency of 60kHz with an ultrasonic cleaner, and then transferred to a PTFE-lined container with a volume of 50mL. In a stainless steel reaction kettle, put the reaction kettle in an oven at 240°C for 24 hours, take out the reaction kettle, and cool it to room temperature naturally in the air. °C for 12 hours to obtain 2MgO·B 2 o 3 ·H 2 O / RGO nanocomposite flame retardant. Depend on Figure 8 and Figure 9 It can be seen that the obtained sample can be assigned as 2MgO·B 2 o 3 ·H 2 The complex of O and RGO.

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Abstract

The invention discloses a 2MgO.B2O3.H2O / RGO nano-composite flame retardant. The composite flame retardant is prepared by loading 2MgO.B2O3.H2O nano-ribbons on the surface of RGO (Reduced Graphene Oxide); and the mass content of the RGO is 5 to 20 percent. According to the 2MgO.B2O3.H2O / RGO nano-composite flame retardant, GO is added in the process of preparing the 2MgO.B2O3.H2O nano-ribbons by a hydrothermal method; the nano-composite flame retardant of the RGO loaded with 2MgO.B2O3.H2O nano-ribbons is prepared by reacting in situ; the preparation method is simple and low in cost; and the prepared 2MgO.B2O3.H2O / RGO nano-composite flame retardant material is good in disparity and small in particle size, moreover, has good flame retarding effect and mechanical properties, and has a potentialapplication prospect.

Description

technical field [0001] The invention belongs to the technical field of flame retardancy, in particular to a 2MgO·B with excellent flame retardancy and mechanical properties 2 o 3 ·H 2 O / RGO nanocomposite flame retardant material. Background technique [0002] With the increase in the number of major fires and the emergence of secondary pollution caused by plastic incineration, the application of flame retardants has received extensive attention. Magnesium borate is a new type of high-efficiency inorganic flame retardant. It has high thermal stability, fine particle size, small volume and mass, easy to disperse, and non-toxic. It can not only flame-retardant but also suppress smoke and eliminate arcs. It has a good market prospect and is widely used in flame retardant of various fibers, resins, rubber products, electrical insulation materials, wires, cables, antirust paint, etc. However, the relatively large particle size of magnesium borate is difficult to disperse in th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08K9/12C08K3/22C08K3/38C08K3/04C08L23/12
CPCC08K3/22C08K3/38C08K9/12C08K2003/222C08K2003/387C08K2201/011C08L2201/02C08K3/042C08L23/12
Inventor 刘志宏郭睿凤
Owner SHAANXI NORMAL UNIV
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