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Flame-retardant master batch, preparation method and application thereof

A technology of flame retardant masterbatch and synergistic flame retardant, which is applied in the field of flame retardant masterbatch and its preparation, and can solve the problems of unsatisfactory flame retardant effect and poor compatibility

Inactive Publication Date: 2020-07-24
SHANDONG UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the poor compatibility between the additive flame retardant and the matrix polymer, the flame retardant effect is not very ideal

Method used

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  • Flame-retardant master batch, preparation method and application thereof
  • Flame-retardant master batch, preparation method and application thereof
  • Flame-retardant master batch, preparation method and application thereof

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preparation example Construction

[0062] The present invention also provides a preparation method of the flame retardant masterbatch described in the above technical solution, comprising the following steps:

[0063] (1) mixing carrier resin, diphenylphosphine oxide derivatives, antioxidant and synergistic flame retardant to obtain a mixture;

[0064] (2) Granulating the mixture obtained in the step (1) to obtain flame retardant masterbatches.

[0065] The invention mixes carrier resin, diphenylphosphine oxide derivative, antioxidant and synergistic flame retardant to obtain a mixture. In the present invention, there is no special regulation on the mixing operation, as long as the obtained dry raw materials are uniformly mixed.

[0066] In the present invention, the carrier resin, the diphenylphosphine oxide derivative, the antioxidant and the synergistic flame retardant are preferably mixed before the carrier resin, the diphenylphosphine oxide derivative, the antioxidant and the synergistic flame retardant ...

Embodiment 1

[0086] Preparation of compound 1,2-bis(diphenylphosphinoxy)ethane (EDPO) with structure II

[0087]

[0088] Put 200ml of toluene into a single-necked flask with a stirrer, first add 22.6g of diphenylphosphine oxide DPO, then add 15g of NaOH dissolved in aqueous solution, then add 5.5g of dichloroethane, and react at 20°C for 2h, After the reaction is completed, filter with suction, wash with water, and dry at last. Finally, 17.508g of product EDPO was obtained, the yield reached 81.3%, and the phosphorus content was 14.2%.

[0089] The TGA test result of the prepared compound EDPO with formula II is shown in figure 1 , its weight loss is 5% at 372.2°C, it has high thermal stability, and the final carbon residue is 3.97%; its DSC melting point test see figure 2 , and its melting point is 272°C.

[0090] Preparation of flame retardant masterbatch FRM-1

[0091] Use blast oven to dry EDPO, PET, antioxidant (1010 and S9228) at 150 ℃ for 3.5h to fully dry, the raw material...

Embodiment 2

[0093] Preparation of compound 1,4-bis(diphenylphosphinoxy)butane (BDPO) with structure III

[0094]

[0095] Put 800ml of toluene into a single-necked flask with a stirrer, first add 118g of diphenylphosphine oxy DPO, then add 70g of NaOH dissolved in aqueous solution, add 35.5g of dichlorobutane, and react for 2 hours at a temperature of 20°C. After the reaction is completed, filter with suction, wash with water, and finally dry to obtain the product BDPO115..8g with a yield of 91% and a phosphorus content of 13.5%.

[0096] The TGA test result of the prepared compound BDPO with formula III structure is shown in image 3 , its weight loss is 5% at 347 ° C, it has high thermal stability, and the final carbon residue is 1.2%; its DSC melting point test see Figure 4 , and its melting point is 263°C.

[0097] Preparation of flame retardant masterbatch FRM-2

[0098] BDPO, PET and antioxidant (1010 and S9228) were fully dried at 120°C for 3.5 hours in a blast oven, and the...

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Abstract

The invention relates to the field of macromolecule materials, and provides a flame-retardant master batch. According to the invention, a diphenyl phosphine oxide derivative with a specific structureand high thermal stability is used as a flame retardant and also has a melting point similar to that of a resin, so that the dispersity of the diphenyl phosphine oxide derivative in a high polymer processing process is improved, and the influence of the flame retardant on melt fluidity is reduced; an antioxidant is used for preventing a macromolecule polymer from becoming sticky, discolored, embrittled or broken due to decomposition; loading of the diphenyl phosphine oxide derivative and the antioxidant is achieved through a carrier resin while the dispersity and the compatibility of the diphenyl phosphine oxide derivative and the antioxidant are improved; and the results of the embodiment show that the flame-retardant master batch provided by the invention shows good compatibility when applied to resin products, and the flame-retardant effect can reach the V-0 level.

Description

technical field [0001] The invention relates to the field of polymer materials, in particular to a flame-retardant masterbatch and its preparation method and application. Background technique [0002] Due to its good mechanical strength, insulation, corrosion resistance, plasticity and high elasticity, polymer materials can be used in different fields such as fibers, containers, films, coatings, engineering plastics, and rubber. Most polymer materials have a certain degree of flammability. With the improvement of fire safety requirements, higher and higher requirements for flame retardancy and comprehensive performance are put forward for polymer materials in the application fields of electronics, automobiles, and textiles. . Adding flame retardants to polymer materials is one of the effective methods to improve the flame retardancy of polymer materials. [0003] At present, the commonly used flame retardants for polymer materials are mainly reactive flame retardants and a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/02C08L77/06C08L23/12C08L53/02C08L77/02C08L71/12C08L77/00C08J3/22C08K5/134C08K5/3492C08K5/527C08K5/5313C08K5/5397C08K7/10C08K7/14
CPCC08J3/226C08J2467/02C08J2367/02C08J2477/06C08J2423/12C08J2453/02C08J2477/02C08J2471/12C08J2477/00C08K5/5397C08K5/1345C08K5/527C08K5/5313C08K7/10C08K7/14C08K5/34928
Inventor 王忠卫武军尹淑君于青侯计金曾冲段好东王庆坤马玉涵
Owner SHANDONG UNIV OF SCI & TECH
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