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PET (polyethylene terephthalate) engineering plastic and preparation method and application thereof

An engineering plastic, selected technology, applied in the field of plastics, can solve the problems of slow crystallization rate of PET materials, weak flame retardancy and tracking resistance, low crystallinity, etc., to achieve suppression of tracking, good stretching, Excellent heat deflection performance

Inactive Publication Date: 2012-06-20
惠州市沃特新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of this, the present invention provides a PET engineering plastic, which solves the technical problems of

Method used

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  • PET (polyethylene terephthalate) engineering plastic and preparation method and application thereof
  • PET (polyethylene terephthalate) engineering plastic and preparation method and application thereof
  • PET (polyethylene terephthalate) engineering plastic and preparation method and application thereof

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Experimental program
Comparison scheme
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preparation example Construction

[0033] see figure 1 , figure 1 Show the above-mentioned PET engineering plastics preparation method flowchart of the embodiment of the present invention, comprise the following steps:

[0034] Step S01, providing raw materials:

[0035] Get the components of following parts by weight:

[0036]

[0037] Step S02, preparing the first mixture:

[0038] Drying the PET, mixing the dried PET, a compatibilizer, a bromine-containing flame retardant, a flame retardant synergist, a nucleating agent, a nucleating synergist, and an antioxidant to obtain a first mixture;

[0039] Step S03, melt extrusion:

[0040] The first mixture is extruded, and the glass fiber is added in the extruding step to obtain PET engineering plastics.

[0041] Specifically, in the preparation method of PET engineering plastics in the embodiment of the present invention, the PET (resin), brominated flame retardant, flame retardant synergist, nucleating agent, nucleating synergist, antioxidant, other addi...

Embodiment 1

[0050] Embodiments of the present invention PET engineering plastics include the following components in parts by weight:

[0051]

[0052]

[0053] The preparation method of PET engineering plastics of the embodiment of the present invention comprises the following steps:

[0054] step 1,

[0055] Get the components of following parts by weight:

[0056]

[0057]

[0058] Step 2,

[0059] The above PET resin was air-dried at 100°C for 3 hours, and the dried PET resin and the above-mentioned brominated polystyrene, antimony trioxide, zinc borate, kaolin, melamine cyanurate, talcum powder, aromatic Sodium phosphate group, polyethylene glycol, 1010, and 168 are sequentially added to the mixer, and stirred and mixed for 5 minutes at a speed of 200 rpm to obtain a uniformly mixed first mixture;

[0060] Step 3,

[0061] Add the obtained first mixture into the twin-screw extruder, and then add the above-mentioned glass fiber from the side feed port of the twin-screw...

Embodiment 2

[0063] Embodiments of the present invention PET engineering plastics include the following components in parts by weight:

[0064]

[0065]

[0066] The preparation method of PET engineering plastics of the embodiment of the present invention comprises the following steps:

[0067] step 1,

[0068] Get the components of following parts by weight:

[0069]

[0070] Step 2,

[0071] The above-mentioned PET resin was air-dried at 130°C for 5 hours, and the dried PET resin and the above-mentioned pentabromobenzyl polyacrylate, antimony trioxide, zinc borate, kaolin, melamine cyanurate, talcum powder, Aromatic sodium phosphate, polyethylene glycol, 1010, and 168 were sequentially added to the mixer, and stirred and mixed for 4 minutes at a speed of 300 rpm to obtain a uniformly mixed first mixture;

[0072] Step 3,

[0073] Add the obtained first mixture into the twin-screw extruder, and then add the above-mentioned glass fiber from the side feed port of the twin-screw...

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Abstract

The invention is applicable to the technical field of engineering plastic and provides a PET (polyethylene terephthalate) engineering plastic and a preparation method and application thereof. The PET engineering plastic comprises PET, compatilizer, bromine flame retardant, flame-retardant synergist, nucleating agent, nucleating synergist, oxidation inhibitor and glass fibers and the like. Crystallization density and crystallization rate of PET composite materials are increased and excellent tension, bending, impacting and thermal-deformation performances and excellent injection molding processing performances of the PET engineering plastic are realized by the aid of compounding of the nucleating agent, the nucleating synergist, the flame retardant and the flame retardant synergist. Flame retardant of the PET engineering plastic is improved by compounding of the flame retardant and the flame retardant synergist, tracking of the PET engineering plastic is suppressed or alleviated and CTI (comparative tracking index) value of the PET engineering plastic is increased.

Description

technical field [0001] The invention belongs to the technical field of plastics, and in particular relates to a PET engineering plastic, its preparation method and application. Background technique [0002] Polyethylene terephthalate (PET) is a thermoplastic semi-crystalline engineering plastic with excellent electrical properties, mechanical properties, solvent resistance, heat resistance, and high cost performance, but due to the rigidity of the main chain Larger, the chain segment moves slowly, so there are disadvantages such as high crystallization temperature, slow crystallization speed, high mold temperature (120-140°C) for molding processing, easy burning, low notched impact strength, and low heat distortion temperature, so it greatly limits Its application in the field of engineering plastics. Only through proper modification can its molding performance be improved, molding cycle shortened, mold temperature lowered (75-85°C), mechanical properties improved, heat dis...

Claims

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Application Information

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IPC IPC(8): C08L67/02C08K13/04C08K7/14C08K3/22C08K3/38C08K5/3492C08K3/34
Inventor 陶德良杨永佳何征
Owner 惠州市沃特新材料有限公司
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