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Novel halogen-free flame-retardant thermoplastic polyester elastomer (TPEE) and preparation method thereof

A thermoplastic elastomer and modification technology, applied in the field of halogen-free flame retardant TPEE thermoplastic elastomer and its preparation, achieves the effects of simple and easy process, strong hydrolysis resistance and good flame retardant effect

Active Publication Date: 2012-10-24
5ELEM HI TECH CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the late start of TPEE research and development in my country, there is still a big gap between its modification, especially flame retardancy research and foreign countries.

Method used

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  • Novel halogen-free flame-retardant thermoplastic polyester elastomer (TPEE) and preparation method thereof
  • Novel halogen-free flame-retardant thermoplastic polyester elastomer (TPEE) and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] (1) Pretreatment of additives: The raw material TPEE (provided by China Textile Investment Development Co., Ltd.) was vacuum-dried at 100°C for 4 hours to obtain dry TPEE for use. After mixing cellulose (provided by Changzhou Lirdton New Material Technology Co., Ltd.) and acetic acid (analytical grade, Wuxi Jingke Chemical Co., Ltd.) at a mass-to-volume ratio (g:mL) of 1:3, the Acetylation in N-methyl-N-propenylmorpholine quaternary ammonium salt ionic liquid, wherein the mass volume ratio (g:mL) of cellulose to N-methyl-N-propenylmorpholine quaternary ammonium salt ionic liquid is 1:300, stir in a high-speed mixer at 60°C for 4 hours to obtain modified cellulose acetate for later use. The degree of acetylation of the obtained modified cellulose acetate is greater than 50%, and the degree of acetylation can be measured by measuring the ester value or alcohol content. Judgment, the specific method can refer to GB / T 14455.8-1993. Will D 98 Nanoclay in the range of 100-9...

Embodiment 2

[0030] (1) Pretreatment of additives: The raw material TPEE (provided by China Textile Investment Development Co., Ltd.) was vacuum-dried at 120°C for 2 hours to obtain dry TPEE for use. After mixing cellulose (provided by Changzhou Lirdton New Material Technology Co., Ltd.) and acetic acid (analytical grade, Wuxi Jinke Chemical Co., Ltd.) at a ratio of 1:4 by mass to volume (g:mL), the Acetylation in N-methyl-N-propenylmorpholine quaternary ammonium salt ionic liquid, wherein the mass volume ratio (g:mL) of cellulose to N-methyl-N-propenylmorpholine quaternary ammonium salt ionic liquid is 1:500, stir in a high-speed mixer at 80°C for 2 hours to obtain modified cellulose acetate for later use. The degree of acetylation of the obtained modified cellulose acetate is greater than 50%, and the degree of acetylation can be measured by measuring the ester value or alcohol content. Judgment, the specific method can refer to GB / T 14455.8-1993. Will D 98 Nanoclay in the range of 100...

Embodiment 3

[0034] (1) Pretreatment of additives: The raw material TPEE (provided by China Textile Investment Development Co., Ltd.) was vacuum-dried at 110°C for 3 hours to obtain dry TPEE for use. After mixing cellulose (provided by Changzhou Lirdton New Material Technology Co., Ltd.) and acetic acid (analytical grade, Wuxi Jingke Chemical Co., Ltd.) at a mass-to-volume ratio (g:mL) of 1:5, the Acetylation in chloroaluminate triethylamine hydrochloride ionic liquid, wherein the mass volume ratio (g:mL) of cellulose to chloroaluminate triethylamine hydrochloride ionic liquid is 1:400, mixed at 70°C at high speed Stir in the machine for 3 hours to obtain modified cellulose acetate for later use. The degree of acetylation of the obtained modified cellulose acetate is greater than 50%. The degree of acetylation can be judged by measuring the ester value or alcohol content. For specific methods, please refer to GB / T 14455.8 -1993. Will D 98 The nanoclay in the range of 100~900nm (provided ...

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Abstract

The invention discloses a halogen-free flame-retardant thermoplastic polyester elastomer (TPEE) and a preparation method thereof. The halogen-free flame-retardant TPEE comprises the following components in percentage by mass: 40 to 60 percent of TPEE, 10 to 30 percent of polypropylene (PPO), 5 to 15 percent of modified cellulose acetate, 10 to 20 percent of phosphonate ester flame retardant, 5 to10 percent of melamine, 3 to 5 percent of zinc borate, 2 to 10 percent of modified nano clay, 0.1 to 2 percent of silane coupling agent and 0 to 1 percent of other aids. The flame-retardant compound material which is prepared by the method has good comprehensive performance and application prospect. In the preparation method for the novel halogen-free flame-retardant TPEE, quaternary ammonium salt cation ionic liquid is used as a modified aid, the used raw materials do not have toxic or side effects, and the method can be operated safely and is simple and practicable.

Description

technical field [0001] The invention relates to a halogen-free flame-retardant TPEE thermoplastic elastomer and a preparation method thereof. Background technique [0002] Thermoplastic polyester elastomer (TPEE) is a block copolymer containing PBT hard segment and polyether glycol soft segment (mainly polytetramethylene glycol, PTMG), which has the softness, elasticity and Thermoplastics are rigid and easy to process, so they are also called polyester rubber. TPEE has the characteristics of high mechanical strength, good impact resistance, high elasticity, creep resistance, low temperature resistance, bending fatigue resistance, oil resistance, and chemical resistance, and has a wide temperature range (-70~200°C). Best heat resistance among elastomers. TPEE is easy to process and can be processed by injection molding, extrusion, blow molding and rotational molding. However, TPEE has higher hardness than ordinary rubber, poor acid resistance, and is also flammable. Theref...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L67/00C08L71/12C08L1/12C08K13/06C08K3/34C08K5/5397C08K5/3492C08K3/38B29C47/92B29C48/92
CPCB29C48/92
Inventor 丁文科沙月华
Owner 5ELEM HI TECH CORP
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