Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

A kind of thermoplastic composite elastomer material and preparation method thereof

An elastomer material and thermoplastic technology, applied in the field of thermoplastic composite elastomer materials and their preparation, can solve the problems of insufficient elasticity, difficulty, loss of beneficial properties of materials, etc., and achieve comprehensive performance improvement, excellent cold resistance, and excellent water resistance. Effect

Active Publication Date: 2021-02-26
SUZHOU HENGLI COMM MATERIAL +1
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, CN105255158A discloses a precursor of an elastomer composition with improved properties. The hardness, elasticity, and rheological properties of the elastomer material are superior to those of rubber or TPV alone, but this superiority is not obvious. The obtained elastomer The mechanical properties of the material cannot meet the high-strength and high-elasticity requirements of practical applications. The elasticity at room temperature is insufficient, and the elastic properties at low temperatures cannot be guaranteed. The composite material has undergone secondary cross-linking or multiple cross-linking. , the unvulcanized part of the cross-linked TPV is cross-linked again, the "sea-island" structure of TPV is destroyed, the plastic phase of the material is difficult to be compatible with more rubber phases, and the new "sea-island" structure is difficult formed, causing serious loss of beneficial properties of the material

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
  • A kind of thermoplastic composite elastomer material and preparation method thereof
  • A kind of thermoplastic composite elastomer material and preparation method thereof
  • A kind of thermoplastic composite elastomer material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] Prepare thermoplastic composite elastomer material 1 by following steps:

[0053] Step (1), take by weighing the antioxidant B225, 1.8kg lubricant silicone and Put 0.2kg of anti-aging agent 4,4'-bis(α,α-dimethylbenzyl)diphenylamine into the internal mixer, melt and blend at 190°C for 5min, then add 2kg of vulcanization aid to the internal mixer Di-o-toluene guanidine, add 1kg vulcanizing agent hexamethylene diamino formate after banburying for 2min, and carry out dynamic vulcanization for 20min to obtain polyamide / acrylate rubber dynamic vulcanizate;

[0054] Step (2), the polyamide / acrylic ester rubber dynamic vulcanizate obtained in the step (1) is mixed with the thermoplastic polyurethane elastomer in a weight ratio of 7:3, and the above-mentioned mixture is extruded using a twin-screw extruder for melt blending, by Set the shear section of the twin-screw extruder to the length ratio of the conveying section to be 1:9 to control the shear rate of the twin-screw extr...

Embodiment 2

[0057] The thermoplastic composite elastomer material 2 is prepared by the following steps:

[0058] Step (1), take by weighing 25kg nylon 11, 25kg nylon 1212, 50kg carboxyl type acrylate rubber, 0.8kg anti-hydrolysis agent polycarbodiamide, 0.5kg BASF's production of antioxidant B225, 0.5kg Lianlong company's production Antioxidant 1035, 0.5kg silicone, 1.5kg sodium stearate and 0.8kg antiaging agent 4,4'-bis(α,α-dimethylbenzyl)diphenylamine were put into the internal mixer, at 190°C Down melt blending 5min, add 5kg vulcanization aid di-o-toluene guanidine in banbury afterwards, add 10kg vulcanizing agent hexamethylene diamino formate after banburying 2min, carry out dynamic vulcanization 20min, obtain polyamide / Acrylic rubber dynamic vulcanizate;

[0059] Step (2), the polyamide / acrylic ester rubber dynamic vulcanizate obtained in the step (1) is mixed with the thermoplastic polyurethane elastomer in a weight ratio of 5:5, and the above-mentioned mixture is extruded using ...

Embodiment 3

[0062] The thermoplastic composite elastomer material 3 is prepared by the following steps:

[0063] Step (1), take by weighing 35kg nylon 1010, 75kg carboxyl type acrylate rubber, 1.6kg anti-hydrolysis agent polycarbodiamide, 1kg BASF's antioxidant B225, 1kg Lianlong's antioxidant 1035, 1.9 kg silicone, 1kg sodium stearate and 0.5kg anti-aging agent 4,4'-bis(α,α-dimethylbenzyl)diphenylamine were put into the internal mixer, melt blended at 190°C for 5min, and then Add 10 kg of vulcanizing aid di-o-toluene guanidine to the internal mixer, add 3 kg of vulcanizing agent hexamethylene diamino formate after banburying for 2 minutes, and perform dynamic vulcanization for 20 minutes to obtain polyamide / acrylate rubber dynamic vulcanizate;

[0064] Step (2), the polyamide / acrylic ester rubber dynamic vulcanizate obtained in the step (1) is mixed with the thermoplastic polyurethane elastomer in a weight ratio of 7:3, and the above-mentioned mixture is extruded using a twin-screw extru...

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
melting pointaaaaaaaaaa
decomposition temperatureaaaaaaaaaa
heat deflection temperatureaaaaaaaaaa
Login to View More

Abstract

The invention provides a thermoplastic composite elastomer material and a preparation method thereof. The thermoplastic composite elastomer material comprises polyamide / acrylate rubber dynamic vulcanizate and thermoplastic polyurethane elastomer in a weight ratio of (3-9):( 1~7) the composite elastomer material obtained by blending in the ratio; the overall performance of the thermoplastic composite elastomer material obtained by the present invention has significantly improved compared with the two materials before blending, especially low temperature elastic performance, low temperature Tensile strength and low-temperature brittleness, the low-temperature tensile strength can reach 26MPa at ‑35°C, the elongation can reach 402%, and the low-temperature brittleness temperature can be as low as ‑45°C. The material also has excellent water resistance, Long-term high-temperature service performance, high-temperature oil resistance, high elasticity and good repeated processing performance, the use of it to prepare materials such as wires and cables, seals, rubber hoses can fill the technical gap in the application of the above materials in high-end technical fields in my country.

Description

technical field [0001] The invention belongs to the field of elastomer composite materials, and in particular relates to a thermoplastic composite elastomer material and a preparation method thereof. Background technique [0002] In recent years, thermoplastic dynamic vulcanizate (TPV) materials have been developed rapidly. Because of their high elasticity of rubber and excellent processing characteristics of thermoplastics, they are widely used in wire and cable, auto parts, various sealing materials, civil engineering, medical equipment, etc. It is widely used in fields such as TPV, especially in the field of high-end manufacturing. The excellent heat resistance, oil resistance and high elasticity of TPV materials usually make it used to prepare products with high added value. [0003] The dynamic vulcanization rubber obtained by dynamic vulcanization of acrylate rubber (ACM) and polyamide (PA) is a new type of TPV material. Since the surface energy of PA is relatively clo...

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
Patent Type & Authority Patents(China)
IPC IPC(8): C08L33/04C08L77/02C08L79/00C08L83/04C08L75/04C08K5/18C08K5/31
CPCC08L33/04C08L2201/08C08L2205/035C08L77/02C08L79/00C08L83/04C08L75/04C08K5/18C08K5/31
Inventor 郭清明石凯凯任小伟程晓松计瑶佳沈晓香
Owner SUZHOU HENGLI COMM MATERIAL
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com