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A kind of flame-retardant pet and pc composite material and preparation method thereof

A composite material and flame retardant technology, which is used in the field of flame retardant PET and PC composite materials and their preparation, can solve the problem of the decline of mechanical properties of PET/PC composite materials, poor mechanical properties and heat resistance of products, and unfavorable large-scale industrial production. problems, to achieve the effect of reducing interface defects, good strength and rigidity, and improving toughness

Active Publication Date: 2019-05-07
NINGBO ZHETIE DAPHOON CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the use of brominated flame retardants has been restricted due to their high toxicity, and sulfonate flame retardants are expensive, which is not conducive to large-scale industrial production. Halogen-free and environmentally friendly phosphorus-based flame retardants are gradually being widely used. However, Halogen-free and environmentally friendly phosphorus-based flame retardants are in liquid form, which brings inconvenience to processing. When the amount added to the base material is high, the cost is high, and the mechanical properties and heat resistance of the product are poor. However, the use of a single-component silicon-based flame retardant It is difficult to prepare modified PC materials with both flame retardancy and mechanical properties
[0006] In summary, the deficiency of the existing technology is that the addition of flame retardants often leads to a decline in the mechanical properties of PET / PC composites.

Method used

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  • A kind of flame-retardant pet and pc composite material and preparation method thereof
  • A kind of flame-retardant pet and pc composite material and preparation method thereof
  • A kind of flame-retardant pet and pc composite material and preparation method thereof

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Experimental program
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Effect test

Embodiment 1-5

[0044] Embodiment 1-5: A flame-retardant PET and PC composite material, which is prepared by the following steps, and its components and contents are shown in Table 1:

[0045] S0: Treatment of inorganic powder: Dilute 1.5% of the total mass of inorganic powder with absolute ethanol in a water bath at 35-45°C for hydrolysis and dilution, the mass ratio of absolute ethanol to silane coupling agent 8:1, at 15-35°C, add the inorganic powder weighed in proportion while stirring the diluent, continue stirring for 5-10min after all the inorganic powder is added, and then dry at 80°C for more than 4h, Finally, place the dried powder in an airtight container for later use; the silane coupling agent is γ-(2,3-glycidoxy)propyltrimethoxysilane;

[0046] S1: Weigh each component according to the ratio in Table 1, wherein the inorganic powder has been treated in step S0 before use, and dry the weighed PC and PET at 120°C for at least 4 hours, and other components at 50- Dry at 80°C for 2 ho...

Embodiment 9

[0053] Embodiment 9: A composite material of flame-retardant PET and PC. The difference from Embodiment 2 is that the toughening compatibilizer is ethylene-methyl acrylate-glycidyl methacrylate copolymer.

Embodiment 10

[0054] Embodiment 10: A composite material of flame-retardant PET and PC. The difference from Embodiment 2 is that the flame retardant is 0.5 parts of octaphenylcyclotetrasiloxane.

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Abstract

The invention discloses a flame-retardant PET and PC composite material and a preparation method thereof. The composite material comprises the following raw materials, by weight part, 40-60 parts of polycarbonate, 25-45 parts of polyethylene glycol terephthalate, 5-15 parts of inorganic powder, 0.5-1.5 parts of a flame retardant, 3-15 parts of a toughening compatilizer, 0.5-1 part of an anti-oxidant, and 0.2-1 part of a lubricant. The toughening compatilizer is one of an ethylene-butyl acrylate-glycidyl methacrylate copolymer and an ethylene-methyl acrylate-glycidyl methacrylate copolymer. The flame-retardant PET and PC composite material is improved in toughening effect at a certain degree and is light in weight and good in flame retardance.

Description

technical field [0001] The invention relates to the technical field of thermoplastic polymer materials, in particular to a flame-retardant PET and PC composite material and a preparation method thereof. Background technique [0002] Polycarbonate (PC for short) is a general term for a class of polymer compounds containing carbonate in the molecular chain, among which bisphenol A polycarbonate is the polycarbonate with the largest output and the widest application. Bisphenol A polycarbonate not only has excellent impact strength, creep resistance, heat resistance, cold resistance and good transparency, but also has high tensile strength, flexural strength, elongation and rigidity , excellent aging resistance, electrical properties, low water absorption, but poor oil resistance, wear resistance and processing performance. [0003] Polyethylene terephthalate (polyethyleneterephthalate) is referred to as PET, which belongs to thermoplastic polyester. It has good thermal stabili...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L67/02C08L69/00C08L23/08C08K13/06C08K9/06C08K7/28C08K3/26C08K5/42C08K5/435C08K5/098B29C48/92
CPCB29C48/92B29C2948/9258B29C2948/92704C08L67/02C08L2201/02C08L2205/03C08L2205/06C08L2205/08C08L69/00C08L23/0884C08K13/06C08K9/06C08K7/28C08K5/42C08K5/435C08K5/098C08K2003/265
Inventor 施懿军邱琪浩王香香张豪杰郭新康周浩周志峰王晨晔
Owner NINGBO ZHETIE DAPHOON CHEM
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