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Novel halogen-free flame-retardant reinforcing polyester alloy (ETP)

A polyester alloy, a new type of technology, applied in the field of modified polymer materials, can solve the problems of unreachable, poor flame retardant effect, etc., and achieve high environmental protection level, good flame retardant effect, and excellent mechanical properties.

Inactive Publication Date: 2010-08-18
苏州兰特纳米材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are also phosphorus-nitrogen flame retardants that are compatible with each other, but the flame retardant effect is very poor, and it does not meet the UL94 0.8mm V-0 level generally required by the electrical and electronic industry.

Method used

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  • Novel halogen-free flame-retardant reinforcing polyester alloy (ETP)

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] New halogen-free flame retardant reinforced polyester alloy (ETP) formula (weight percent):

[0053] Ingredients:

[0054] (1) Polyethylene terephthalate (PET) 48%;

[0055](2) Polytrimethylene terephthalate (PTT) 16%;

[0056] Accessories:

[0057] (1) Halogen-free flame retardant

[0058] PDPTP 20%;

[0059] (2) Antioxidant

[0060] Antioxidant 1010 0.2%;

[0061] Antioxidant 168 0.2%;

[0062] (3) lubricant

[0063] TAF 0.4%;

[0064] (4) Nucleating agent

[0065] Nano bentonite 2%;

[0066] (5) Crystallization accelerator

[0067] Polyether 4%;

[0068] (6) enhancer

[0069] E-glass fiber 10%.

[0070] The performance of this embodiment is as follows: tensile strength=121Mpa, notched impact strength=60J / m, bending strength=180Mpa, flame retardant UL94 V0 level.

Embodiment 2

[0072] New halogen-free flame retardant reinforced polyester alloy (ETP) formula (weight percent):

[0073] Ingredients:

[0074] (1) Polyethylene terephthalate (PET) 40%;

[0075] (2) Polytrimethylene terephthalate (PTT) 15%;

[0076] Accessories:

[0077] (1) Halogen-free flame retardant

[0078] PDPTP 12%;

[0079] (2) Antioxidant

[0080] Antioxidant 1010 0.2%;

[0081] Antioxidant 168 0.2%;

[0082] (3) lubricant

[0083] TAF 0.6%;

[0084] (4) Nucleating agent

[0085] Nano bentonite 1%;

[0086] (5) Crystallization accelerator

[0087] Polyether 2%;

[0088] (6) enhancer

[0089] E-glass fiber 30%.

[0090] The performance of this embodiment is as follows: tensile strength=132Mpa, notched impact strength=75J / m, bending strength=212Mpa, flame retardant UL94 V0 level.

Embodiment 3

[0092] New halogen-free flame retardant reinforced polyester alloy (ETP) formula (weight percent):

[0093] Ingredients:

[0094] (1) Polyethylene terephthalate (PET) 45%;

[0095] (2) Polytrimethylene terephthalate (PTT) 16%;

[0096] Accessories:

[0097] (1) Halogen-free flame retardant

[0098] PDPTP 14%;

[0099] (2) Antioxidant

[0100] Antioxidant 1010 0.2%;

[0101] Antioxidant 168 0.2%;

[0102] (3) lubricant

[0103] TAF 0.5%;

[0104] (4) Nucleating agent

[0105] Nano bentonite 2%;

[0106] (5) Crystallization accelerator

[0107] Polyether 3%;

[0108] (6) enhancer

[0109] E-glass fiber 20%.

[0110] The performance of this embodiment is as follows: tensile strength=126Mpa, notched impact strength=68J / m, bending strength=195Mpa, flame retardant UL94 V0 level.

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Abstract

A novel halogen-free flame-retardant reinforcing polyester alloy (ETP) is characterized in that the prescription (weight percent) of raw materials comprises the following main materials and auxiliary materials, wherein the main materials comprise (1) 40-50% of polyethylene glycol terephthalate (PET) and (2) 15-20% of polytrimethylene terephthalate (PTT), and the auxiliary materials comprise (1) 12-20% of halogen-free flame retardant (PDPTP), (2) 0.2% of antioxidant 1010 / 168, (3) 0.4-0.6% of lubricating agent (TAF), (4) 1-3% of nucleating agent (nano-bentonite), (5) 2-4% of crystallization accelerating agent (polyether), and (6) 10-30% of reinforcing agent (alkali-free glass fiber). The polyester alloy is prepared by taking PET / PTT polyester as main material, taking PDPTP as halogen-free flame retardant, using polymerizing technology, crystallization accelerating technology and nucleating technology, adding auxiliary material, and using a double-screw extruder for plastifying and pelleting. Through the synergistic effect of each component of the system and the unique processing technique, the product has excellent comprehensive performance; the environmental index meets European Union RoHS, IEC halogenation-free and Reach requirements; the flame-retardant grade reaches to UL94, 0.8mm V-0 level; the leakage tracking index (CTI) reaches to 425V; the test temperature of scorching wire reaches to 750 DEG C; both the intensity and the toughness can meet the requirement of products in electronic industry.

Description

technical field [0001] The invention relates to the field of modified polymer materials, in particular to a novel halogen-free flame-retardant reinforced polyester alloy (ETP) and a preparation method thereof. The material is completely halogen-free in terms of environmental protection, has excellent mechanical properties, flame retardant properties, electrical properties, and high molding efficiency. It is widely used in industries and fields such as electronics, automobiles, and household appliances. Background technique [0002] PET is a crystalline polymer with high melting temperature (Tm) and glass transition temperature (Tg). It appeared earlier and is cheap. Although it has high rigidity, high strength and excellent dimensional stability, it is resistant to Comprehensive properties such as thermal properties are widely used in synthetic fibers, films and other fields, but due to the rigidity of PET, the crystallization speed is slow and injection molding is difficult...

Claims

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Application Information

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IPC IPC(8): C08L67/02C08L71/00C08K13/04C08K7/14C08K3/34C08K5/20
Inventor 孟繁茂王彦林李宝荣李志
Owner 苏州兰特纳米材料科技有限公司
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