Glass fiber reinforced rigid-tough balance type polyester composition and preparation method thereof

A balanced and combined technology, applied in the field of engineering plastics, can solve problems such as poor effect, and achieve the effects of simple and easy process, improved processing fluidity, and improved finish.

Active Publication Date: 2017-01-04
HEFEI GENIUS NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although polyester has great advantages in tensile strength, flexural strength and flexural modulus, it cannot be used in some fields that require high strength and rigidity while having higher toughness
[0003] At present, the balance of rigidity and toughness of plastics is generally achieved through modification methods, and glass fibers are generally used for resin reinforcement, and ordinary tougheners are added to the composition of glass fibers to increase impact resistance, and the effect is very poor. of

Method used

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Examples

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Embodiment Construction

[0032] The methods and processes involved in the present invention are described below in conjunction with specific examples. The following examples are only used to illustrate the operation process and formula of the present invention, and do not limit the protection scope of the present invention.

[0033] In the following examples, the glass fiber is the 988A continuous glass fiber produced by Jushi Group;

[0034] The antioxidant is tetrakis[β-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate]pentaerythritol ester and tris[2.4-di-tert-butylphenyl]phosphite in a weight ratio of 1:1 compounded;

[0035] Lubrication modifier is SK20R silicone powder sold by Yuyao Kaimlihua Plastic Technology Co., Ltd.;

[0036] The coupling agent is γ-aminopropyltriethoxysilane (silane coupling agent KH550).

[0037] The formula of embodiment 1-9 is as shown in table 1, and its preparation method is as follows:

[0038] (1) Mixing of raw materials

[0039] After drying the polyester in an o...

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Abstract

The invention discloses a glass fiber reinforced rigid-tough balance type polyester composition and a preparation method thereof. The polyester composition is prepared from 100 parts of polyester, 0.5-5 parts of isopropyl palmitate, 20-100 parts of glass fibers, 0.1-0.5 part of an antioxidant, 1-3 parts of a lubricating modifier and 0.1-0.2 part of a coupling agent through mixing and extrusion granulating. Isopropyl palmitat has the effects of preventing glass fibers from being exposed, improving processing fluidity, reducing screw torque and improving the surface finish of a product; meanwhile, the problem of layering of a composition system can be solved, and the mechanical properties, especially, impact resistance of the composition can be substantially improved; the prepared polyester composition is an engineering plastic with good rigid-tough balance.

Description

technical field [0001] The invention belongs to the field of engineering plastics, and relates to a glass fiber-reinforced rigid-toughness balanced polyester composition and a preparation method thereof. Background technique [0002] Polyester is a material with excellent properties. Due to its good mechanical properties, good coloring properties, and chemical corrosion resistance, it is widely used in spinning and film packaging industries. As engineering plastics, the amount of polyester engineering plastics is less, the main application areas are electrical and electronic, machinery, automobile, light industry and building materials industry. Although polyester has great advantages in tensile strength, flexural strength and flexural modulus, it cannot be used in some fields that require high strength and rigidity while having higher toughness. [0003] At present, the balance of rigidity and toughness of plastics is generally achieved through modification methods, and gl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/02C08L83/04C08K13/04C08K7/14C08K5/101C08K5/544B29C47/92B29C48/92
Inventor 杨桂生方永炜
Owner HEFEI GENIUS NEW MATERIALS
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