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Polyphthalamide reinforced material and preparation method thereof

A technology of polyphthalamide and reinforcing materials, which is applied in the chemical industry and can solve the problems of low flame retardant efficiency and unfavorable mechanical properties of materials

Inactive Publication Date: 2011-07-27
SHENZHEN KEJU NEW MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, its flame retardant efficiency is not high, and it has a great adverse effect on the mechanical properties of the material.

Method used

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  • Polyphthalamide reinforced material and preparation method thereof
  • Polyphthalamide reinforced material and preparation method thereof
  • Polyphthalamide reinforced material and preparation method thereof

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preparation example Construction

[0039] The present invention also provides the above-mentioned polyphthalamide reinforcing material preparation method, its technical process is as follows figure 1 shown. The method comprises the steps of:

[0040] S1: Weigh each component according to the formula of the above-mentioned polyphthalamide reinforcing material;

[0041] S2: mixing the polyphthalamide, modified red phosphorus, and additives to form a mixed material;

[0042] S3: extruding the mixed material;

[0043] S4: adding a filling reinforcing agent during the extrusion process, continuing to extrude and granulate to obtain the polyphthalamide reinforcing material.

[0044] Specifically, in the step S1 of the preparation method of the above-mentioned polyphthalamide reinforcing material, the formula components included in the polyphthalamide reinforcing material are:

[0045] Polyphthalamide 48~58%

[0046] Modified red phosphorus 6-15%

[0047] Filling enhancer 35~45%

[0048] Additive 1~2%.

[0049...

Embodiment 1

[0061] The formula composition of polyphthalamide reinforcing material mass percentage is as follows:

[0062] Polyphthalamide 48%, filling enhancer 45%, modified red phosphorus 6%, ester lubricant 0.3%, non-polar lubricant 0.3%, antioxidant 0.2%, coupling agent 0.2%.

[0063] Among them, the above-mentioned non-polar lubricant is siloxane; the ester lubricant is pentaerythritol stearate; the filling enhancer is alkali-free glass fiber; the antioxidant is N, N-hexamethylene-1,6-di[3 -(3,5-di-tert-butyl-4-hydroxyphenyl)propionamide] 0.1% and tris(2,4-di-tert-butylphenyl)phosphite 0.1%; coupling agent is γ-aminopropyl base triethoxysilane; modified red phosphorus acquisition method is as follows:

[0064] SA1: Mix red phosphorus with ethanol solution of γ-glycidoxypropyltrimethoxysilane to form a solid-liquid mixture, wherein the mass ratio of red phosphorus to γ-glycidoxypropyltrimethoxysilane is 3:1 ;

[0065] SA2: Heat the solid-liquid mixture to 55°C and perform ultrasoni...

Embodiment 2

[0073] The formula composition of polyphthalamide reinforcing material mass percentage is as follows:

[0074] Polyphthalamide 51%, filling enhancer 40%, modified red phosphorus 7%, ester lubricant 0.5%, non-polar lubricant 0.5%, antioxidant 0.4%, coupling agent 0.6%;

[0075] Among them, the above-mentioned non-polar lubricant is siloxane; the ester lubricant is pentaerythritol stearate; the filling enhancer is alkali-free glass fiber; the antioxidant is N, N-hexamethylene-1,6-di[3 -(3,5-di-tert-butyl-4-hydroxyphenyl)propionamide]0.2% and tris(2,4-di-tert-butylphenyl)phosphite 0.2%; coupling agent is γ-aminopropyl base triethoxysilane; modified red phosphorus acquisition method is as follows:

[0076] SA1: Red phosphorus is mixed with an acetone solution of γ-aminopropyltriethoxysilane to form a solid-liquid mixture, wherein the mass ratio of red phosphorus to γ-aminopropyltriethoxysilane is 3:1;

[0077] SA2: Heat the solid-liquid mixture to 45°C and perform ultrasonic tre...

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Abstract

The invention discloses a polyphthalamide reinforced material and a preparation method thereof. The polyphthalamide reinforced material comprises the following formula components in percentage by mass: 48 to 58 percent of polyphthalamide, 6 to 15 percent of modified red phosphorus, 35 to 45 percent of filler intensifier and 1 to 2 percent of additive. The polyphthalamide reinforced material disclosed by the invention tales polyphthalamide as a basic component, and as the polyphthalamide acts with the modified red phosphorus, the filler intensifier, the additive and other components in an extrusion process, the polyphthalamide reinforced material has high flame-retarding performance and mechanical properties such as tensile strength and impact strength. Meanwhile, the production cost of the polyphthalamide reinforced material is low. The preparation method of the polyphthalamide reinforced material comprises: mixing the components according to a formula; and performing segmental feeding and extrusion. The preparation method adopts a simple process, and is low in cost and suitable for industrial production.

Description

technical field [0001] The invention belongs to the technical field of chemical industry, and in particular relates to a polyphthalamide reinforcing material and a preparation method thereof. Background technique [0002] Polyphthalamide (PPA) is a semi-crystalline thermoplastic aromatic polyamide, commonly known as aromatic high-temperature nylon. PPA has excellent heat resistance, the long-term working temperature can be as high as 180°C, and the short-term temperature resistance can reach 290°C; at the same time, PPA has high modulus, high hardness, high cost performance, dimensional stability, low water absorption, etc. In view of the further improvement of the market's environmental protection requirements for materials, more and more applications require halogen-free flame-retardant materials. At present, the flame retardancy of PPA is mainly achieved by halogen, and its halogen-free flame retardancy has the disadvantages of high cost, low efficiency, and great influe...

Claims

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Application Information

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IPC IPC(8): C08L77/10C08K13/06C08K9/06C08K3/02C08K7/14C09C3/12B29C47/92B29C48/92
CPCB29B7/38B29B7/90C09K21/00C09K21/14C08K9/06C08K5/526C08K5/544C08K7/14C08K9/04C08J3/201C08J2377/10B29C48/92B29C2948/92704B29C48/04B29C2948/92514B29C2948/92561B29C2948/92895C08L77/06
Inventor 徐东徐永马百钧
Owner SHENZHEN KEJU NEW MATERIAL
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