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Engineering plastic raw material, engineering plastic and engineering plastic preparation method

A technology of engineering plastics and raw materials, which is applied in the field of engineering plastic raw materials, engineering plastics and engineering plastics preparation, can solve the problems of low thermal deformation temperature of engineering plastics, achieve high bending strength and flexural modulus, high thermal deformation temperature, and resistance The effect of high impact strength

Active Publication Date: 2012-09-26
BYD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problem that the thermal deformation temperature of the engineering plastics prepared by the existing engineering plastics raw materials is not high, the present invention provides a kind of engineering plastics raw materials with higher thermal deformation temperature and better mechanical properties for preparing engineering plastics, including matrix materials, Strengthening agent, flame retardant and cross-linking agent, wherein, the matrix material is polyamide, and the cross-linking agent is a compound shown in formula I, wherein, R 1 , R 2 independently selected from 1,4-phenylene, 4,4'-biphenylene, 2,6-naphthylene, 1,4-cyclohexylene, 1,2-ethylene, 1,3- One or more of propylene or 1,4-butylene, R 3 , R 4 Independently selected from one of vinyl, allyl, n-butyl, isobutenyl or pentenyl

Method used

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  • Engineering plastic raw material, engineering plastic and engineering plastic preparation method
  • Engineering plastic raw material, engineering plastic and engineering plastic preparation method
  • Engineering plastic raw material, engineering plastic and engineering plastic preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] The mass fraction is 46.5% polyhexamethylene adipate (model PA66 27AE1 is purchased from Rhodia company), 25% glass fiber (model EC10-4.5mm-983 is purchased from Vetrotex company), 18.5% phosphorus-based halogen-free Flame retardant Exolit OP1312 (purchased from Clariant Company) and 10.0% of 1,2,4,5-pyrellitic acid-bis(4-pentenylphenyl)imide crosslinking agent represented by the following formula ( It is obtained by dehydration condensation of one mole of pyromellitic dianhydride and two moles of 4-pentenyl aniline) in a high-speed mixer and mixed uniformly, and the mixture is passed through a twin-screw extruder at 270 ° C at 200 Extrude and pelletize under the extrusion speed per minute, the obtained pellets are dried at 100°C to remove residual water, and finally injection molded, at room temperature in vacuum (1 × 10 -2 torr) with an irradiation dose of 100kGy 60 Co gamma rays were irradiated for 1 h, and the irradiated samples were annealed in vacuum at 120° C. f...

Embodiment 2

[0040]Adopt the same method as Example 1 to prepare engineering plastics, the crosslinking agent in the raw material of different engineering plastics is 1,2,4,5-pyrellitic acid-bis(3,3-dimethylenepentyl) amine.

Embodiment 3

[0042] The same method as in Example 1 is used to prepare engineering plastics. The raw materials of different engineering plastics are 51.5% polyhexamethylene adipate, 25% glass fiber, and 18.5% phosphorus-based halogen-free flame retardant Exolit OP1312 and 5% of 1,2,4,5-pyrelliticoyl-bis(4-pentenylphenyl)imide cross-linking agent represented by formula II.

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Abstract

The invention provides an engineering plastic raw material, which comprises a basis material, an intensifier, a fire retardant and a cross-linking agent. The basis material is polyamide. The cross-linking agent is a compound represented by a formula I, wherein R1 and R2 are one from 1,4-phenylene, 4,4'-bisphenlene, 2,6-naphthalene, 1,4-cyclohexylene, 1,2-ethylene, 1,3-propylene or 1,4-butylene respectively and independently; and R3 and R4 are one from vinyl, allyl, n-butenyl, isobutenyl or tertpentyl respectively and independently. Meanwhile, the invention also provides engineering plastic, and a preparation method thereof. The prepared engineering plastic has the advantages of high thermal deformation temperature, high tensile strength, high bending strength and modulus, high impact strength and the like. The formula I is shown below.

Description

technical field [0001] The invention belongs to the field of engineering plastics, and in particular relates to an engineering plastic raw material, an engineering plastic and a preparation method of the engineering plastic. Background technique [0002] Polyamide material, because it contains highly polar amide groups, can form hydrogen bonds, and has: 1. High crystallinity, obvious melting point, high surface hardness, wear resistance, small friction coefficient, self-lubrication and noise reduction . 2. Good low temperature performance and certain heat resistance. 3. Non-toxic, odorless, mildew-free, good weather resistance. 4. Good chemical stability, seawater resistance, solvent resistance and oil resistance. 5. The advantages of good electrical insulation, its excellent wear resistance, chemical resistance, high impact, excellent thermal stability and good processing performance make it widely used in process manufacturing, such as in automobiles, instruments and me...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L77/00C08L77/06C08K5/3417C08J3/28
Inventor 贾健勇
Owner BYD CO LTD