High-temperature-resistant high-moisture-resistant halogen-free flame-retardant polyester type polyurethane thermoplastic elastomer composition

A technology of thermoplastic elastomer and flame-retardant polyester, which is applied in the direction of conductors, insulated conductors, electrical components, etc., to achieve good flame-retardant performance and improve the effect of high-temperature and high-humidity precipitation resistance

Active Publication Date: 2011-07-13
HANGZHOU JLS FLAME RETARDANTS CHEM
View PDF7 Cites 20 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The key technology of the present invention is to solve the problem of the precipitation of halogen-free flame-retardant polyester polyurethane elastomers in high-temperature and high-humidity environments, and maintain the flexibility

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • High-temperature-resistant high-moisture-resistant halogen-free flame-retardant polyester type polyurethane thermoplastic elastomer composition
  • High-temperature-resistant high-moisture-resistant halogen-free flame-retardant polyester type polyurethane thermoplastic elastomer composition
  • High-temperature-resistant high-moisture-resistant halogen-free flame-retardant polyester type polyurethane thermoplastic elastomer composition

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0035] Example 1:

[0036] The weight ratio of flame-retardant polyester thermoplastic polyurethane composition is as follows:

[0037] Aluminum diethylphosphinate 20.0%,

[0038] Melamine urethane cyanate 5.0%,

[0039] Viscosity modifier 8.0%,

[0040] 0.5% of a mixture of antioxidants and UV absorbers,

[0041] Polyester polyurethane elastomer (Shore A 85, tensile strength is about the remaining amount.

[0042] 35MPa)

[0043] The viscosity modifier is an oil-extended styrene / conjugated diene copolymer, and the mineral oil processing oil filling ratio is 100:100.

[0044] After mixing The twin-screw extruder is mixed and pelletized at a temperature range of 120-200°C to obtain a high-temperature, high-humidity, halogen-free, flame-retardant polyester polyurethane thermoplastic elastomer.

Example

[0045] Examples 2-7: The other ingredients and processing methods are the same as in Example 1.

[0046] Serial number

Example Embodiment

[0047] Examples 8-9: Other ingredients and processing methods are the same as in Example 1.

[0048]

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

PropertyMeasurementUnit
Tensile strengthaaaaaaaaaa
Login to view more

Abstract

The invention relates to a high-temperature-resistant high-moisture-resistant halogen-free flame-retardant polyester type polyurethane thermoplastic elastomer composition. The invention aims to solve the technical problem of precipitation of the halogen-free flame-retardant polyester type polyurethane elastomer in a high-temperature high-moisture environment, maintain the softness and mechanical strength of the elastomer and conform to the RoHS instruction, thereby satisfying the requirements for high-performance electronic/electric appliance materials and the development characteristics of no halogen and flame retardancy. The invention is characterized in that the high-temperature-resistant high-moisture-resistant halogen-free flame-retardant polyester type polyurethane thermoplastic elastomer composition is prepared from the following components in percentage by weight: 5.0-40.0% of organic phosphonate flame retardant, 0.0-15.0% of nitrogen-containing compound, 1.0-15.0% of viscosity modifier, 0.1-1.5% of antioxidant and ultraviolet absorbent, and the balance of polyether type polyurethane thermoplastic elastomer. The components are premixed, extruded and granulated to obtain the product.

Description

technical field [0001] The invention relates to the preparation of a high-temperature-resistant, high-humidity, halogen-free, flame-retardant polyester polyurethane thermoplastic elastomer (TPU). Organic phosphonates and nitrogen-containing compound flame retardants are used to maintain the high mechanical properties and flexibility of the TPU. No migration and precipitation under high temperature and high humidity environment (85°C, relative humidity 95%, cycle 96 hours), Shore hardness ranges from 72A to 95A, halogen-free flame retardant, meets RoHS2.0 requirements, no dripping, and can pass UL1581VW -1 and UL94V0 flame retardant test, suitable for wire and cable sheath materials and electronic plug connector materials. Background technique [0002] At present, halogen-free flame-retardant polyester thermoplastic TPU products are mainly made by adding phosphorus-nitrogen intumescent halogen-free flame retardant (IFR) of ammonium polyphosphate, melamine cyanurate (melamine ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): C08L75/06C08K5/5313C08K5/3492C08K5/3472H01B7/17
Inventor 朱峰戚巧红王益锦刘君锭胡燕
Owner HANGZHOU JLS FLAME RETARDANTS CHEM
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap