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Glass-fiber-reinforced PA66/PBT (polyamide 66/polybutylene terephthalate) resin alloy material and preparation method thereof

A PBT resin and alloy material technology, applied in the field of glass fiber reinforced PA66/PBT resin alloy material and its preparation, can solve the problems of low notched impact strength and large molding shrinkage rate, and achieve improved performance indicators, improved water absorption, reduced Effects of Recipe Cost

Inactive Publication Date: 2013-04-03
CHENGDU SOLVER TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage is that the notched impact strength is low and the molding shrinkage is large

Method used

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  • Glass-fiber-reinforced PA66/PBT (polyamide 66/polybutylene terephthalate) resin alloy material and preparation method thereof
  • Glass-fiber-reinforced PA66/PBT (polyamide 66/polybutylene terephthalate) resin alloy material and preparation method thereof
  • Glass-fiber-reinforced PA66/PBT (polyamide 66/polybutylene terephthalate) resin alloy material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] The formula by mass percentage includes:

[0027] PA66 resin: 40%

[0028] PBT resin: 15%,

[0029] The relative viscosity of the PA66 resin is 2.7-2.9dl / g.

[0030] The PBT resin is polybutylene terephthalate, and its characteristic viscosity number is 0.8-1.2dl / g.

[0031] The alkali-free glass fiber is: 3 strands of ply roving for alkali-free thermoplastics (about 30%)

[0032] The short fiber is: CaCO 3 Whiskers 10%, diameter 5-10nm, aspect ratio 40-50,

[0033] The coupling agent is: 0.5% of 3-aminopropyltrioxysilane,

[0034] Hindered phenolic antioxidant 1076 (chemical name: β-(3,5-di-tert-butyl-4-hydroxyphenyl) propionate octadecanoic acid), 0.1%

[0035] Light and heat stabilizer: n-hexadecyl 3,5-di-tert-butyl-4-hydroxybenzoate, 0.1%,

[0036] Compatibilizers are: maleic anhydride (MAH) grafted ethylene-octene elastomer (POE-g-MAH), 2%, silane grafted polyethylene (sxPE), 1%, SEBS-g-MAH, 1% .

[0037] The preparation method is:

[0038] (1) Premixing:...

Embodiment 2

[0064] The formula by mass percentage includes:

[0065] PA66 resin: 45%

[0066] PBT resin: 10%,

[0067] The relative viscosity of the PA66 resin is 2.7-2.9dl / g.

[0068] The PBT resin is polybutylene terephthalate, and its characteristic viscosity number is 0.8-1.2dl / g.

[0069] The alkali-free glass fiber is: 3 strands of ply roving for alkali-free thermoplastics (about 30%)

[0070] The short fiber is: CaSO 3 Whiskers 10%, diameter 5-10nm, aspect ratio 40-50,

[0071] The coupling agent is: 0.5% of 3-aminopropyltrioxysilane,

[0072] Aromatic amine antioxidants: N-phenyl-α-naphthylamine, 0.1%

[0073] Light and heat stabilizer: n-hexadecyl 3,5-di-tert-butyl-4-hydroxybenzoate, 0.1%,

[0074] The compatibilizers are: maleic anhydride (MAH) grafted ethylene-octene elastomer (POE-g-MAH), 1%, silane grafted polyethylene (sxPE), 1%, SEBS-g-MAH, 1% , SMA1%

[0075] The preparation method is:

[0076] (1) Premixing: premix PA66 resin, PBT resin, inorganic short fibers, ...

Embodiment 3

[0079] The formula by mass percentage includes:

[0080] PA66 resin: 40%

[0081] PBT resin: 15%,

[0082] The relative viscosity of the PA66 resin is 2.7-2.9dl / g.

[0083] The PBT resin is polybutylene terephthalate, and its characteristic viscosity number is 0.8-1.2dl / g.

[0084] The alkali-free glass fiber is: 3 strands of ply roving for alkali-free thermoplastics (about 30%)

[0085] The short fiber is: silicon calcium magnesium whisker 10%, diameter 5-10nm, aspect ratio 40-50,

[0086] The coupling agent is: 3-aminopropyltrioxysilane 0.6%,

[0087] Hindered phenolic antioxidant 1076, 0.1%

[0088] Light and heat stabilizer: 2-(2'-hydroxy-5'methylphenyl)benzotriazole 0.15%,

[0089] Compatibilizers are: maleic anhydride (MAH) grafted ethylene-octene elastomer (POE-g-MAH), 2%, silane grafted polyethylene (sxPE), 1%, SEBS-g-MAH, 1%

[0090] The preparation method is:

[0091] (1) Premixing: premix PA66 resin, PBT resin, inorganic short fibers, coupling agent, compati...

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Abstract

The invention discloses a glass-fiber-reinforced PA66 / PBT (polyamide 66 / polybutylene terephthalate) resin alloy material and a preparation method thereof. The glass-fiber-reinforced PA66 / PBT resin alloy material comprises the following main raw materials: PA66 resin, PBT resin, alkali-free glass fiber, inorganic chopped fiber, coupling agent, compatilizer, antioxidant, photo-thermal stabilizer and the like. In the modified material, the alkali-free glass fiber and inorganic chopped fiber not only have the function of reinforcement, but also have the function of promoting uniform dispersion and mutual solubility among the PA66, PBT and compatilizer; the coupling agent and compatilizer in the material have the functions of performing surface treatment on the glass fiber and inorganic chopped fiber and enhancing the compatibility with PA66 / PBT alloy; thus, the aggregative state structure of the material is fundamentally changed, the compatibility and crystallinity are greatly changed, and various properties of the PA66 / PBT alloy are sufficiently displayed in deed; and meanwhile, the cost can be lowered, and the application range of PA66 can be widened.

Description

technical field [0001] The invention relates to a glass fiber reinforced PA66 / PBT resin alloy material and a preparation method thereof. Background technique [0002] Nylon (Nylon or PA) is a polymer material with the largest output, the most varieties and the widest application fields among the five major engineering plastics. Among them, the output of PA6 and PA66 is the largest, accounting for about 90% of the total output of nylon; the main reason is that nylon has excellent mechanical properties, thermal properties, chemical corrosion resistance and friction properties, as well as good processing properties and chemical activity. However, its disadvantages are strong water absorption, poor low temperature toughness, general flame retardancy, and relatively high price. If it is used in automotive materials, it needs to further improve its mechanical and heat resistance properties. Therefore, with the development of the automobile industry and the electronics industry, ...

Claims

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Application Information

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IPC IPC(8): C08L77/06C08L67/02C08K13/04C08K7/14C08K7/08C08K7/10B29B9/06B29C47/92B29C48/92
CPCB29C48/92
Inventor 雷文君陈德东
Owner CHENGDU SOLVER TECH
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