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Flame-retardant reinforced PET/PBT/LDPE alloy material and preparation method thereof

A technology of alloy materials and raw materials, applied in the field of polymer engineering plastic modification, can solve the problems of easy transesterification, deterioration of material properties, long processing cycle, etc. The effect of reducing alloy cost

Inactive Publication Date: 2015-05-20
福建奥峰科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a flame-retardant reinforced PET / PBT / LDPE alloy material, focusing on solving the problems of long processing cycle and high-temperature processing in the alloy, which easily cause transesterification of the product, which leads to deterioration and instability of material properties.

Method used

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  • Flame-retardant reinforced PET/PBT/LDPE alloy material and preparation method thereof
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  • Flame-retardant reinforced PET/PBT/LDPE alloy material and preparation method thereof

Examples

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Comparison scheme
Effect test

Embodiment 1

[0034] 10% by weight of PET, 35% by weight of PBT, 5% by weight of LDPE, 0.2% of 3-(2,3-epoxypropoxy)propyltrimethoxysilane, nitrogen-phosphorus composite flame retardant The total amount is 15%, the total amount of 1010 and 168 compound is 0.5%, the total amount of sodium carboxylate and talcum powder is 1%, TAF is 0.5%, ethylene-acrylate-glycidol is 1%, first mix 7 Minutes into the main feeding barrel, and then add 30% of glass fiber, the extrusion temperature is 220 ° C in the first zone, 230 ° C in the second area, 235 ° C in the third area, 235 ° C in the fourth area, 240 ° C in the fifth area, and 240 ° C in the fifth area. The sixth zone is 235°C, the seventh zone is 235°C, the eighth zone is 240°C, the ninth zone is 240°C, and the tenth zone is 250°C to granulate the finished product.

Embodiment 2

[0036] 10% by weight of PET, 35% by weight of PBT, 5% by weight of LDPE, 0.2% of 3-(2,3-epoxypropoxy)propyltrimethoxysilane, nitrogen-phosphorus composite flame retardant The total amount is 15%, the total amount of 1010 and 168 compound is 0.5%, the total amount of sodium carboxylate and talcum powder is 1%, TAF is 0.5%, ethylene-acrylate-glycidol is 1%, calcium phosphate is 1%, mix it for 7 minutes and put it into the main feeding tank, then add 30% glass fiber, the extrusion temperature is 220°C in the first zone, 230°C in the second zone, 235°C in the third zone, 235°C in the fourth zone, and 235°C in the fourth zone. The fifth zone is 240°C, the sixth zone is 235°C, the seventh zone is 235°C, the eighth zone is 240°C, the ninth zone is 240°C, and the tenth zone is 250°C to granulate the finished product.

Embodiment 3

[0038] 15% by weight of PET, 30% by weight of PBT, 5% by weight of LDPE, 0.2% of 3-(2,3-epoxypropoxy)propyltrimethoxysilane, nitrogen-phosphorus composite flame retardant The total amount is 13%, the total amount of 1010 and 168 compound is 0.7%, the total amount of sodium carboxylate and talcum powder is 1%, TAF is 0.6%, ethylene-acrylate-glycidol is 2%, calcium phosphate is 1.5%, mixed for 7 minutes and put into the main feeding tank, then added 30% glass fiber, the extrusion temperature was 220°C in the first zone, 230°C in the second zone, 235°C in the third zone, 235°C in the fourth zone, and 235°C in the fourth zone. The fifth zone is 240°C, the sixth zone is 235°C, the seventh zone is 235°C, the eighth zone is 240°C, the ninth zone is 240°C, and the tenth zone is 250°C to granulate the finished product.

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Abstract

The invention discloses a flame-retardant reinforced PET / PBT / LDPE alloy material and a preparation method thereof. The alloy material comprises the following main raw materials (by weight): 10 to 20 parts of polyethylene glycol terephthalate, 25 to 35 parts of polybutylene terephthalate, 4 to 6 parts of low density polyethylene 0.2 to 0.4 part of a coupling agent, 28 to 32 parts of a reinforcing agent, 15 parts of a halogen-free fire retardant, 0.5 to 1 part of a composite anti-oxidant, 1 part of a composite nucleating agent, 0.5 to 1 part of a lubricant, 1 to 3 parts of a compatilizer and 1 to 2 parts of an inhibitor. The raw materials are extruded by a twin-screw extruder so as to obtain a finished product; and the finished product, i.e., the flame-retardant reinforced PET / PBT / LDPE alloy material, has high temperature resistance and yellowing resistance and good mechanical properties and can totally replace PBT flame-retardant reinforced materials with higher cost and be used in fields like connector assemblies of electric appliances and fittings of energy saving lamps.

Description

technical field [0001] The invention belongs to the field of modification of polymer material engineering plastics, in particular to a flame-retardant reinforced PET / PBT / LDPE alloy material and a preparation method thereof Background technique [0002] Polyethylene terephthalate (PET) resin is the thermoplastic polyester with the largest output today, and the price is the cheapest among the five general-purpose engineering plastics. It has the advantages of high modulus, high heat distortion temperature, excellent insulation performance, good color, etc. However, its slow crystallization speed and brittleness after crystallization make its use in engineering plastics far lower than polybutylene terephthalate Esters (PBT). Polybutylene terephthalate (PBT) resin is a commonly used injection molding engineering plastic. It has the characteristics of fast crystallization, small shrinkage, yellowing resistance, weather resistance, excellent insulation performance, and good mecha...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L67/02C08L23/06C08L23/08C08K13/04C08K7/14C08K3/34C08K5/098C08K3/32B29C47/92B29C48/92
CPCB29C48/022B29C48/92B29C2948/92514B29C2948/9259B29C2948/92704B29C2948/92885B29C2948/92895
Inventor 汪泳洋赵勤宽
Owner 福建奥峰科技有限公司