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Halogen-free flame retardant, and application and polycarbonate composition thereof

A polycarbonate and flame retardant technology, applied in the field of flame retardant products, can solve the problems of high use cost of phosphazene flame retardant, poor heat resistance, influence on thermal properties of substrates, etc. The effect of improving the flame retardant efficiency

Inactive Publication Date: 2013-02-20
江苏飞荣达新材料科技有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of the above-mentioned deficiencies in the prior art, the object of the present invention is to provide a halogen-free flame retardant and its application and polycarbonate composition, aiming at solving the problem of poor heat resistance of existing phosphate esters and serious impact on the thermal performance of the substrate , and the high cost of using phosphazene flame retardants

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0022] The preparation method of the halogen-free flame retardant is: mixing the above three components in proportion.

[0023] The application of the halogen-free flame retardant is also provided in the present invention, and the halogen-free flame retardant is used as a flame retardant for polycarbonate materials. The polycarbonate material can be polycarbonate or polycarbonate-ABS alloy. When in use, the mixed halogen-free flame retardant composition is directly added to polycarbonate or polycarbonate-ABS alloy, and used as a flame retardant for polycarbonate or polycarbonate-ABS alloy. The added amount of the halogen-free flame retardant is generally 5%-20% of the weight of the polycarbonate material.

[0024] The halogen-free flame retardant described in the present invention selects a flame retardant formula suitable for polycarbonate materials after screening various components, and solves the problem that traditional halogen-free flame retardants have a serious impact...

Embodiment 1

[0028] The following is the raw material composition of the polycarbonate composition added with the halogen-free flame retardant of the present invention:

[0029] Polycarbonate (1201-22,LG) 90.5%;

[0030] Polyphosphazene (Japan bus company) 6%;

[0031] Halogen-free phosphate flame retardant PX-220 (Zhejiang Wansheng Chemical) 3%;

[0032] PTFE 0.5%.

[0033] Prepare the polycarbonate composition of the present embodiment by above-mentioned ratio and raw material, carry out physical and chemical property test to it, test result is as follows:

[0034] Test items standard test international unit value Tensile Strength GB / T1040 MPa 61 Bending strength GB / T 9341 MPa 96 Flexural modulus GB / T 9341 GPa 2.5 Notched impact strength GB / T1043 kJ / m 2 23.5 Heat distortion temperature GB / T 1634.1-2004 ℃ 97 flame retardant UL 94 1.6mm V

Embodiment 2

[0036] The following is the raw material composition of the polycarbonate composition added with the halogen-free flame retardant of the present invention:

[0037] Polycarbonate (1201-22,LG) 68.5%;

[0038] ABS 757K (Taiwan Chi Mei) 10%;

[0039] KT-3 (Shenyang Ketong Plastic Material) 5%

[0040] Phenoxypolyphosphazene Zibo Lanyin Chemical 12%;

[0041] Halogen-free phosphate flame retardant (Tianjin Lianrui Chemical) 4%;

[0042] PTFE 0.5%.

[0043] Prepare the polycarbonate composition of the present embodiment by above-mentioned ratio and raw material, carry out physical and chemical property test to it, test result is as follows:

[0044] Test items standard test international unit value Tensile Strength GB / T1040 MPa 63 Bending strength GB / T 9341 MPa 97 Flexural modulus GB / T 9341 GPa 2.3 Notched impact strength GB / T1043 kJ / m 2 33 Heat distortion temperature GB / T 1634.1-2004 ℃ 88 flame retar...

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Abstract

The invention discloses a halogen-free flame retardant, and application and a polycarbonate composition thereof. The halogen-free flame retardant comprises the following components in parts by weight: 5-30 parts of polyphosphazene, 1-10 parts of phosphate and 1-5 parts of PTFE (polytetrafluoroethylene). According to the halogen-free flame retardant disclosed by the invention, the polyphosphazene flame retardant and the traditional phosphate flame retardant are matched to obtain the new halogen-free flame retardant; and the halogen-free flame retardant can be used as a polycarbonate or polycarbonate-ABS (acrylonitrile-butadiene-styrene) alloy flame retardant. The halogen-free flame retardant enhances the flame retarding efficiency of the phosphonitrile flame retardant, greatly reduces the consumption, and lowers the production cost; and meanwhile, the halogen-free flame retardant has favorable compatibility with high polymer materials, and does not lower the mechanical strength of the material, thereby having wide application prospects.

Description

technical field [0001] The invention relates to the field of flame retardant products, in particular to a halogen-free flame retardant, its application and a polycarbonate composition. Background technique [0002] Most of the organic phosphorus flame retardants are phosphoric esters, but most of them are liquid, and the process is complicated when used. Moreover, phosphate ester flame retardants have poor heat resistance and high volatility, which seriously affects the thermal performance of the substrate, which also limits the use of phosphate ester as a material for flame retardants. In view of the shortcomings of phosphate esters, new phosphorus and nitrogen flame retardants have been developed one after another, but affected by technology, most of them still have defects. Phosphazene flame retardant is a relatively successful new halogen-free flame retardant to replace phosphate ester flame retardants, but its price is relatively high, which is its biggest defect. The ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L85/02C08L27/18C08K5/521C08K5/523C08L69/00
Inventor 吴建龙蔡文廷
Owner 江苏飞荣达新材料科技有限公司
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