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High-efficiency halogen -free flame retardation PTT polyester and preparation method therefor

A high-efficiency, polyester technology, applied in the field of polymer materials, can solve the problems of poor flame retardancy and limited application range, and achieve the effects of good dimensional stability, good impact resistance, and good flame retardancy

Inactive Publication Date: 2015-08-26
QINGDAO XINZHAN PLASTIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, PTT, like other engineering plastics, has the disadvantage of poor flame retardancy, which greatly limits its application range.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] A high-efficiency halogen-free flame-retardant PTT polyester, the composition of which is: PTT 71%, nano-flame retardant 15%, titanate coupling agent 0.5%, polydimethylsiloxane 3.5% , MBS 5%, polyethylene glycol 4%, antioxidant 1010 0.2%, pentaerythritol stearate 0.8%, wherein, the PTT is a polytrimethylene terephthalate resin with an intrinsic viscosity of 0.7-1.5dL / g , the nano-flame retardant is magnesium hydroxide with a particle size of 20-100 nm, and the MBS is a methyl methacrylate-butadiene-styrene block copolymer.

[0019] Preparation method: (1), put PTT in a forced air circulation oven, dry at 110°C-120°C for about 6-8 hours, and set aside; (2), weigh the nano flame-retardant The agent is added into the high-speed mixer with the cylinder temperature maintained at 80°C to 120°C and stirred for 10 to 30 minutes, then the titanate coupling agent weighed by weight is added, and the stirring is continued for 20 to 40 minutes to obtain surface modified The nano-fl...

Embodiment 2

[0021] A high-efficiency halogen-free flame-retardant PTT polyester, the components of which are: 80% PTT, 10% nano-flame retardant, 0.5% titanate coupling agent, polymethylphenylsiloxane 2 %, MBS 4%, polyethylene glycol 3%, antioxidant 1010 and antioxidant 168 compound 0.1%, pentaerythritol stearate 0.4%, wherein, the PTT is an intrinsic viscosity of 0.7-1.5dL / g Polytrimethylene terephthalate resin, the nano-flame retardant is aluminum hydroxide with a particle size between 20 and 100nm, and the MBS is a methyl methacrylate-butadiene-styrene block copolymer .

[0022] Preparation method: (1), put PTT in a forced air circulation oven, dry at 110°C-120°C for about 6-8 hours, and set aside; (2), weigh the nano flame-retardant The agent is added into the high-speed mixer with the cylinder temperature maintained at 80°C to 120°C and stirred for 10 to 30 minutes, then the titanate coupling agent weighed by weight is added, and the stirring is continued for 20 to 40 minutes to obta...

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Abstract

The invention discloses a high-efficiency halogen -free flame retardation PTT polyester and a preparation method therefor. The PTT polyester comprises the following ingredients, by weight, 70%-85% of PTT, 10%-15% of nano-flame retardant, 0.1%-1% of titanate coupling agents, 2%-5% of organosilicon flame retardants, 3%-8% of MBS, 2%-4% of polyethylene glycol, 0.1%-0.5% of anti-oxidants and 0.1%-1% of pentaerythritol stearate. The nano-flame retardant is one selected with magnesium hydroxide, aluminum hydroxide and organo montmorillonite with a particle size of 20-100nm. The beneficial effects are that the PTT polyester has good flame retardation performance and impact resistance, the flame retardation performance can meet high efficiency, halogen-free, low smoke and UL94V-0 level requirements, and the PTT polyester also has excellent chemical resistance, good dimension stability, low cost and the like.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to a high-efficiency halogen-free flame-retardant PTT polyester and a preparation method thereof. Background technique [0002] Polytrimethylene terephthalate (PTT), as a new type of polyester polymer material with excellent comprehensive properties, has been widely used in the fields of fibers, films, engineering plastics, etc., especially in engineering plastics, PTT also has polyparaphenylene The high performance of ethylene glycol diformate (PET) and the ease of processing of polybutylene terephthalate (PBT), and its price is much lower than that of PBT, so it has good practical value. However, PTT, like other engineering plastics, has the disadvantage of poor flame retardancy, which greatly limits its application range. Contents of the invention [0003] The object of the present invention is to provide a high-efficiency halogen-free flame-retardant PTT polyester a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/02C08L51/04C08L71/08C08L83/04C08K13/06C08K9/04C08K3/22C08K3/34C08K5/103
Inventor 不公告发明人
Owner QINGDAO XINZHAN PLASTIC
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