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High-toughness and flame-retardant PC/PBT alloy material and preparation method

An alloy material and high toughness technology, applied in the field of high toughness flame retardant PC/PBT alloy materials and preparation, can solve the problems of unsatisfactory flame retardant properties of alloy materials, limit the application range of alloy materials, and cannot prevent burning, etc. Excellent halogen-free smoke suppression and flame retardant properties, low cost of raw materials, good processability

Inactive Publication Date: 2017-07-21
STARWAY INTERNATIONAL HOME LIVING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

For example, a Chinese invention patent application discloses a halogen-free flame-retardant PC / PBT composite material [Application No.: 201310252577.7], which adds boron carbide-coated boron fiber and flame retardant HT-202A and other additives to enhance the performance of alloy materials, but from the experimental data provided, the flame retardancy of the prepared alloy materials is not satisfactory. It is conceivable that once a fire occurs, the material will not be as ideal. same stop burning
[0005] Another Chinese invention patent discloses a high-toughness flame-retardant PBT / PC composite material [application number: 201310252887.9]. The PC / PBT alloy material provided by this invention has a higher heat distortion temperature and better flame-retardant properties , but its tensile strength is too low, which greatly limits the application range of alloy materials

Method used

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  • High-toughness and flame-retardant PC/PBT alloy material and preparation method

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Effect test

Embodiment 1

[0028] The present embodiment provides a PC / PBT alloy material component. Specifically, the PC / PBT alloy material component includes 80 parts by mass of PC, 20 parts of PBT, 15 parts of toughening agent and 3 parts by mass. of flame retardants.

[0029] The toughening agent is ACR, and the flame retardant is a mixture of nano-magnesium hydroxide, nano-montmorillonite and organic silicon flame retardant with a mass ratio of 1:1:1.

[0030] The mass fraction ratio of PC and PBT contained in the PC / PBT alloy material has a great influence on the properties of the alloy material. With the increase of PC content, the tensile strength, flexural strength and heat deflection temperature of the alloy material increase, and the solvent resistance decreases. This is because the toughness, tensile modulus and heat deflection temperature of PC are higher than PBT, solvent resistance is lower than PBT. The notched impact strength of alloy materials increases first and then decreases with ...

Embodiment 2

[0038] The present embodiment provides a PC / PBT alloy material component. Specifically, the PC / PBT alloy material component includes 90 parts by mass of PC, 10 parts of PBT, 10 parts of toughening agent and 5 parts by mass. of flame retardants.

[0039] The toughening agent is MBS, and the flame retardant is a mixture obtained by uniformly mixing nano-magnesium hydroxide and nano-montmorillonite at a mass ratio of 1:1.

[0040] MBS is a typical particle-dispersed toughening modifier. It is a functional polymer material synthesized on the basis of the concept of particle design. It is a ternary polymer prepared by emulsion graft polymerization. It has a typical core-shell in submicroscopic form. Structure, the core of the particle is lightly cross-linked styrene-butadiene rubber core with low shear modulus, and the outer shell is a hard shell layer formed by grafting styrene and methyl methacrylate. The principle of toughening and modifying PC / PBT alloy materials is exactly th...

Embodiment 3

[0042] The present embodiment provides a PC / PBT alloy material component. Specifically, the PC / PBT alloy material component includes 70 parts by mass of PC, 30 parts of PBT, 20 parts of toughening agent and 1 part of flame retardants.

[0043] The toughening agent is ACR and MBS with a mass ratio of 1:1, and the flame retardant is nano-magnesium hydroxide.

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Abstract

The invention belongs to the technical field of high polymer material modification and processing and relates to a high-toughness and flame-retardant PC / PBT alloy material and a preparation method. The high-toughness and flame-retardant PC / PBT alloy material contains a polymer and additives, wherein the polymer contains PC and PBT, the additives include a toughening agent and flame retardant, and the polymer and the additives are blended to prepare the PC / PBT alloy material. The high-toughness and flame-retardant PC / PBT alloy material has the advantages of high strength and good processability while having excellent flame retardancy and impact resistance, and the alloy material preparation method is simple, process conditions are easy to control, the used materials are low in cost, and the alloy material is suitable for industrialized production.

Description

technical field [0001] The invention belongs to the technical field of polymer material modification and processing, and relates to a high-toughness flame-retardant PC / PBT alloy material and a preparation method. Background technique [0002] Polycarbonate (PC) is an amorphous polymer with excellent performance and tough and rigid mechanical properties. Its outstanding features are high impact resistance and creep resistance, good dimensional stability, and good cold resistance. High unnotched impact strength ranks first among engineering plastics, high glass transition temperature, continuous use in the range of 120-130 ° C, good electrical insulation and dimensional stability; however, PC also has many shortcomings, such as poor fluidity and difficult Processing into thin-walled parts is prone to stress cracking, poor solvent resistance and wear resistance, and low notched impact strength. Therefore, it is very necessary to improve the performance of plastic products that ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L69/00C08L67/02C08L83/04C08K13/02C08K13/04C08K7/14C08K3/22C08K3/34
CPCC08K2201/011C08L69/00C08L2201/02C08L2201/22C08L2205/03C08L2205/035C08L67/02C08L83/04C08K13/02C08K13/04C08K7/14C08K3/22C08K3/34
Inventor 叶根林
Owner STARWAY INTERNATIONAL HOME LIVING CO LTD
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