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Reinforced flame-retardant PBT/PET alloy and preparation method thereof

An alloy and flame retardant technology, which is applied in the field of reinforced flame retardant PBT/PET alloy and its preparation, can solve the problems of extremely limited application and no flame retardant performance requirements, and achieves low cost, stable mechanical properties and stable mechanical properties. high sex effect

Inactive Publication Date: 2020-08-14
浙江钧科新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Neither of the above two technologies provides flame retardant performance requirements and corresponding formula design, which greatly limits the application of this material

Method used

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  • Reinforced flame-retardant PBT/PET alloy and preparation method thereof
  • Reinforced flame-retardant PBT/PET alloy and preparation method thereof
  • Reinforced flame-retardant PBT/PET alloy and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Reinforced flame-retardant PBT / PET alloy, comprising the following components by weight:

[0033] PBT, 70 parts by weight, said PBT intrinsic viscosity≤0.82DL / g;

[0034] PET, 30 parts by weight, said PET intrinsic viscosity≤0.8DL / g;

[0035] Glass fiber, wire diameter 13 μm, 43 parts by weight.

[0036] Flame retardant, the main flame retardant is brominated polystyrene, 13 parts by weight, and the auxiliary flame retardant is antimony trioxide, 4 parts by weight.

[0037] Compatibilizer, SEBS-g-MAH, 3 parts by weight;

[0038] Modifier, CPE, 5 parts by weight;

[0039] Nucleating agent, precipitated barium sulfate, 0.6 parts by weight;

[0040] Antioxidant N,N'-bis-(3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionyl)hexamethylenediamine, 0.15 parts by weight; tri[2.4-di-tert-butylphenyl ] Phosphite, 0.15 parts by weight;

[0041] Lubricant, pentaerythritol stearate, 0.2 parts by weight;

[0042] Stabilizer, calcium stearate, 0.1 weight part; Zinc stearate, 0.06 wei...

Embodiment 2

[0063] On the basis of Example 1, the preparation method remains unchanged, and the flame-retardant PBT / PET alloy is strengthened, including the following components by weight:

[0064] PBT, 60 parts by weight, said PBT intrinsic viscosity≤0.82DL / g;

[0065] PET, 40 parts by weight, said PET intrinsic viscosity≤0.8DL / g;

[0066] Glass fiber, wire diameter 13 μm, 43 parts by weight.

[0067] Flame retardant, the main flame retardant is brominated polystyrene, 13 parts by weight, and the auxiliary flame retardant is antimony trioxide, 4 parts by weight.

[0068] Compatibilizer, SEBS-g-MAH, 3 parts by weight;

[0069] Modifier, CPE, 5 parts by weight;

[0070] Nucleating agent, precipitated barium sulfate, 0.6 parts by weight;

[0071] Antioxidant N,N'-bis-(3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionyl)hexamethylenediamine, 0.15 parts by weight; tri[2.4-di-tert-butylphenyl ] Phosphite, 0.15 parts by weight;

[0072] Lubricant, pentaerythritol stearate, 0.2 parts by weight;...

Embodiment 3

[0081] On the basis of Example 1, the preparation method remains unchanged, and the flame-retardant PBT / PET alloy is strengthened, including the following components by weight:

[0082] PBT, 70 parts by weight, said PBT intrinsic viscosity≤0.82DL / g;

[0083] PET, 30 parts by weight, said PET intrinsic viscosity≤0.8DL / g;

[0084] Glass fiber, wire diameter 13 μm, 53 parts by weight.

[0085] Flame retardant, the main flame retardant is pentabromobenzyl polyacrylate, 11 parts by weight, and the auxiliary flame retardant is antimony trioxide, 3.5 parts by weight.

[0086] Compatibilizer, PE-g-GMA, 2.5 parts by weight;

[0087] Modifier, CPE, 8 parts by weight;

[0088] Nucleating agent, precipitated barium sulfate, 0.6 parts by weight;

[0089] Antioxidant N,N'-bis-(3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionyl)hexamethylenediamine, 0.15 parts by weight; tri[2.4-di-tert-butylphenyl ] Phosphite, 0.15 parts by weight;

[0090] Lubricant, montan wax, 0.21 parts by weight;

...

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Abstract

The invention discloses a reinforced flame-retardant PBT / PET alloy and a preparation method thereof. The reinforced flame-retardant PBT / PET alloy comprises the following components in parts by weight:60-70 parts of PBT; 30 to 40 parts of PET; 30 to 80 parts by weight of glass fiber; 10 to 15 parts by weight of a flame retardant; 2-3 parts by weight of a compatilizer; 5-10 parts by weight of a modifier; 0.3-1 part by weight of a nucleating agent; 0.2 to 0.4 part by weight of an antioxidant; 0.15 to 0.25 part by weight of a lubricating agent; 0.15 to 0.35 part by weight of a stabilizing agent;0.15 to 0.3 part by weight of an ester inhibitor and 0.15 to 0.3 part by weight of a chain extender; the reinforced flame-retardant PBT / PET alloy has the characteristics of stable mechanical property,low cost, low VOC (volatile organic compound), high heat-resistant temperature, high wear resistance, high strength, creep resistance, fatigue resistance, high glossiness, high flowability, high stability, long service life and the like, and can be widely applied to the fields of automobiles, household appliances, illumination and the like.

Description

technical field [0001] The invention relates to the technical field of polymer material processing, in particular to a reinforced flame-retardant PBT / PET alloy widely used in the fields of automobiles, household appliances and lighting and a preparation method thereof. Background technique [0002] At present, in the field of automobiles, home appliances and lighting, PBT and its modified materials are widely used due to their high strength, high hardness, high gloss, low creep and other characteristics, and the production of PBT and its modified materials is generally parallel and in the same direction. Building block extruder, the screw and barrel adopt "building block" structure, which has good interchangeability and can be used in any combination according to different material processing techniques. The length-to-diameter ratio of the extruder generally adopts L / D=36 ~44, using additive side feeding, the natural exhaust port is the fifth barrel, the side feeding port is...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/02C08L25/06C08L33/16C08L63/00C08L51/00C08L51/06C08K13/04C08K7/14C08K3/22B29B9/06B29C48/92
CPCC08L67/02B29B9/06B29C48/92C08L2201/02C08L2203/20C08L2201/08C08L2205/025C08L2205/035C08L2205/08C08K2201/003B29C2948/92704B29C2948/9259C08K2201/014
Inventor 杜华董广杰钟周阳葛晨童陈小杰杨根旺罗红军
Owner 浙江钧科新材料有限公司