A kind of halogen-free flame-retardant pc/pet alloy and preparation method thereof

A technology of alloy and phosphorus-nitrogen flame retardant, which is applied in the field of halogen-free flame-retardant PC/PET alloy and its preparation, can solve the problems of poor mechanical properties and flame-retardant properties, achieve low cost, improve mechanical properties, prevent The effect of oxidation

Inactive Publication Date: 2016-04-06
东莞市松燊塑料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the current PC / PET alloy still has problems such as poor mechanical properties and poor flame retardancy. Therefore, how to prepare PC / PET alloys with good mechanical properties and good flame retardancy by adding various additives has important practical applications. value

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0061] A halogen-free flame-retardant PC / PET alloy, which consists of the following raw materials in parts by weight:

[0062] PC resin 25 parts

[0063] 15 copies of recycled PET

[0064] Phosphorus nitrogen flame retardant 10 parts

[0065] Nano calcium carbonate 1 part

[0066] 3 parts heavy calcium carbonate

[0067] 3 parts of ethylene-butyl acrylate

[0068] Ethylene-acrylate-maleic anhydride terpolymer 5 parts

[0069] Phosphorous acid 0.2 parts

[0070] 0.2 parts of pentaerythritol stearate

[0071] Dilauryl thiodipropionate 0.2 parts.

[0072] Wherein, the PC resin adopts the product of BAYER company model 2805.

[0073] Among them, the viscosity of recycled PET is 0.7dl / g.

[0074] Wherein, the phosphorus-nitrogen-based flame retardant is a product of Kaifeng Huashun Company whose model number is HS-PNA-8.

[0075] Wherein, the particle diameter of described nano-calcium carbonate is 160 nanometers, and the particle diameter of described heavy calcium carbona...

Embodiment 2

[0084] A halogen-free flame-retardant PC / PET alloy, which consists of the following raw materials in parts by weight:

[0085] PC resin 56 parts

[0086] 25 copies of recycled PET

[0087] Phosphorus nitrogen flame retardant 15 parts

[0088] Nano calcium carbonate 3 parts

[0089] 5 parts of heavy calcium carbonate

[0090] 6 parts of ethylene-butyl acrylate

[0091] 6 parts of ethylene-acrylate-maleic anhydride terpolymer

[0092] Phosphorous acid 0.4 parts

[0093] 0.5 parts of pentaerythritol stearate

[0094] Dilauryl thiodipropionate 0.5 part.

[0095] Wherein, the PC resin adopts the product of BAYER company model 2805.

[0096] Among them, the viscosity of recycled PET is 0.8dl / g.

[0097] Wherein, the phosphorus-nitrogen-based flame retardant is a product of Kaifeng Huashun Company whose model number is HS-PNA-8.

[0098] Wherein, the particle diameter of described nano-calcium carbonate is 220 nanometers, and the particle diameter of described heavy calcium...

Embodiment 3

[0107] A halogen-free flame-retardant PC / PET alloy, which consists of the following raw materials in parts by weight:

[0108] PC resin 55 parts

[0109] 28 copies of recycled PET

[0110] Phosphorus nitrogen flame retardant 17 parts

[0111] Nano calcium carbonate 1 part

[0112] 3 parts heavy calcium carbonate

[0113] Ethylene-butyl acrylate 10 parts

[0114] 7 parts of ethylene-acrylate-maleic anhydride terpolymer

[0115] Phosphorous acid 0.4 parts

[0116] 0.8 parts of pentaerythritol stearate

[0117] 0.7 parts of dilauryl thiodipropionate.

[0118] Wherein, the PC resin adopts the product of BAYER company model 2805.

[0119] Among them, the viscosity of recycled PET is 0.8dl / g.

[0120] Wherein, the phosphorus-nitrogen-based flame retardant is a product of Kaifeng Huashun Company whose model number is HS-PNA-8.

[0121] Wherein, the particle diameter of described nano-calcium carbonate is 200 nanometers, and the particle diameter of described heavy calcium c...

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Abstract

The invention relates to the technical field of PC / PET (polycarbonate / polyethylene terephthalate) alloy, and particularly relates to halogen-free flame retardant PC / PET alloy and a preparation method thereof. According to the preparation method, ethylene-butyl acrylate and an ethylene-acrylate-maleic anhydride terpolymer are used as compatible reagents so as to draw on advantages to make up for disadvantages and give play to a synergistic effect, so that the compatibility of the PC / PET alloy is improved, thus the mechanical property of the PC / PET alloy is improved. As a phosphorous-nitrogen fire retardant adopted in the PC / PET alloy has high stability, the forming temperature requirements can be completely satisfied, and the flame retardancy effect is excellent. According to the preparation method, phosphorous acid is added so as to prevent ester exchange of PC and PET in an alloying process. In short, the good mechanical property and the flame retardant property of the halogen-free flame retardant PC / PET alloy are realized through a perfect formula system; the preparation technology is simple and low in cost.

Description

technical field [0001] The invention relates to the technical field of PC / PET alloys, in particular to a halogen-free flame-retardant PC / PET alloy and a preparation method thereof. Background technique [0002] Polyethylene terephthalate (PET) is a thermoplastic semi-crystalline engineering plastic. Due to the high rigidity of the main chain and the slow movement of the chain segments, there are disadvantages such as slow crystallization rate and low crystallization degree, which greatly limits Its application in the field of engineering plastics. Only through proper modification can its crystallization properties and mechanical strength be improved. PC has excellent transparency, mechanical strength and thermal stability, and is one of the five general-purpose engineering plastics. However, PC has disadvantages such as high melt viscosity, difficult molding and processing, and resistance to oil and solvents. Therefore, PC / PET alloy appeared. [0003] The Chinese inventio...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L69/00C08L67/02C08L23/08C08K13/02C08K3/26C08K3/32C08K5/103C08K5/372B29C47/92B29C48/92
CPCB29C48/04B29C48/40B29C48/911B29C48/92B29C2948/9259B29C2948/92704B29C2948/92885B29C2948/92895
Inventor 刘福军
Owner 东莞市松燊塑料科技有限公司
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