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Halogen-free flame-retardant polypropylene master batch and preparation method thereof

A flame retardant masterbatch and polypropylene technology, which is applied in the field of polymer material processing aids and their preparation, can solve the problems of low flexibility and high production cost of polypropylene products, achieve good water resistance and desorption performance, and improve the flame retardant effect. , the effect that the flame retardant performance is not affected

Active Publication Date: 2017-10-20
南通顺裕包装材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, modified halogen-containing or halogen-free flame-retardant polypropylene materials are mainly used in the market. The production cost is high, and the flexibility of polypropylene products meeting different flame-retardant requirements is low.

Method used

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  • Halogen-free flame-retardant polypropylene master batch and preparation method thereof
  • Halogen-free flame-retardant polypropylene master batch and preparation method thereof
  • Halogen-free flame-retardant polypropylene master batch and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0026] The polypropylene halogen-free flame retardant masterbatch of this embodiment is made of the following components by weight:

[0027] 20.72kg of polypropylene resin, 74kg of halogen-free composite flame retardant (composed of 40kg of piperazine diphosphate, 20kg of pentaerythritol diphosphate melamine salt, 10kg of melamine cyanurate, 4kg of triphenyl phosphate), dispersed Antioxidant 5kg, compound antioxidant 0.28kg (made up of the antioxidant DLTDP of the antioxidant 1076 of 0.2kg and 0.08kg);

[0028] The preparation method of the above-mentioned polypropylene halogen-free flame retardant masterbatch has the following steps:

[0029] (1) The above-mentioned components will be weighed according to the formula, and mixed in a high-speed mixer until the friction heat generated by the mixing makes the temperature of the material rise to 80 ° C ~ 90 ° C, and the material is discharged to cool;

[0030] (2) Feed the cooled mixed material into the twin-screw extruder for m...

Embodiment 2～ Embodiment 6

[0032] The preparation method of the halogen-free flame-retardant polypropylene material of each example is the same as that of Example 1, the difference lies in the weight ratio of each component, see Table 1 for details.

[0033] Table 1: each component formula of embodiment

[0034]

[0035]

[0036] Mix the polypropylene halogen-free flame retardant masterbatch prepared in Examples 1 to 6 with the copolymerized polypropylene resin in a ratio of 35:65, and use an injection molding machine to inject a standard sample, and the standard sample according to the national standard The mechanical properties and flame retardant properties were tested, and the test results are shown in Table 2.

[0037] Table 2: Test results of mechanical properties and flame retardant properties of Examples 1 to 6

[0038]

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Abstract

The invention discloses a halogen-free flame-retardant polypropylene master batch and a preparation method thereof. According to the halogen-free flame-retardant polypropylene master batch, a halogen-free composite flame retardation system is composed of piperazine diphosphate, a melamine salt of pentaerythritol diphosphate, melamine cyanurate and triphenyl phosphate; and the flame retardation system has good flame retardation synergism and good high temperature resistance and can obtain good resistance to hydrolysis precipitation without any treatment, so the flame retardation system is not prone to hydrolysis precipitation in the forming process of the master batch.

Description

technical field [0001] The invention relates to a polymer material processing aid and a preparation method thereof, in particular to a polypropylene halogen-free flame-retardant masterbatch and a preparation method thereof. Background technique [0002] Polypropylene is widely used in the manufacture of components such as electronic appliances, auto parts, and modern office supplies due to its good heat resistance, low water absorption, and high comprehensive mechanical properties. However, due to the disadvantage of flammability of polypropylene, its application in some fields is limited. [0003] Currently used flame retardant polypropylene materials include halogen / antimony flame retardant polypropylene and halogen-free flame retardant polypropylene materials. The former type of flame-retardant polypropylene is prone to secondary disasters due to thermal cracking and a large amount of corrosive toxic gases and smoke generated during combustion. Therefore, according to t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12C08K5/00C08K5/3492C08K5/523C08K5/134C08K5/3462C08K5/521C08L23/14
CPCC08K5/00C08K5/1345C08K5/3462C08K5/34928C08K5/521C08K5/523C08L23/14C08L2201/02C08L2201/08C08L2201/22C08L2205/02C08L23/12
Inventor 周健
Owner 南通顺裕包装材料有限公司
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