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Environment-friendly high and low temperature resistant and oil resistant flame-retardant nano-composite thermoplastic elastomer and preparation process thereof

A thermoplastic elastomer and nano-composite technology is applied in the field of environment-friendly, high-low-temperature-resistant, oil-resistant, flame-retardant nano-composite thermoplastic elastomer and its preparation technology, and can solve the problems affecting the composite resilience, mechanical and mechanical properties, electrical properties, temperature resistance, oil resistance and resistance. Grinding and other properties, affecting the final properties of the product, low NBR content and other issues, to achieve the effect of good dispersion and peeling performance, reduced halogen content, and improved flame retardancy

Active Publication Date: 2015-12-30
CHANGSHU INSTITUTE OF TECHNOLOGY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Chinese patent ZL201110392602.2 environment-friendly high and low temperature resistant oil-resistant wear-resistant flame-retardant rubber and plastic composition invented a NBR / PVC / polyamide (PA) composite system, the NBR content in the system is relatively low, and the water absorption rate of PA is high. It is a crystalline high polymer, which has poor compatibility with amorphous PVC, which affects the resilience, mechanical properties, electrical properties, temperature resistance, oil resistance and wear resistance of the compound. The system has no effect on NBR / PVC / The further dynamic vulcanization of the polyamide (PA) composite system affects the final performance of the product

Method used

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  • Environment-friendly high and low temperature resistant and oil resistant flame-retardant nano-composite thermoplastic elastomer and preparation process thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028]1) Preparation of NBR nanocomposite powder: Weigh 100 parts of NBR with an acrylonitrile content of 40wt%, 1.0 part of activator stearic acid, 0.2 part of vulcanizing agent sulfur, anti-aging agent N-isopropyl-N'-phenyl 1.0 part of p-phenylenediamine, 0.5 part of accelerator tetramethylthiuram disulfide, 10 parts of organically modified montmorillonite Nanomer1.44PSS; put into internal mixer together and carry out mixing and shearing, and the mixing temperature is 165°C , the mixing time is 10 minutes, and 1.0 parts of release agent PVC resin is added after discharging to obtain semi-crosslinked NBR nanocomposite powder containing montmorillonite.

[0029] 2) Preparation of PVC pre-plastic powder: Weigh 100 parts of PVC resin S-1000, 0.3 parts of tetrakis[?-(3,5-di-tert-butyl-4-hydroxyphenyl)propionic acid] pentaerythritol, calcium Add 2.0 parts of zinc stabilizer and 10 parts of plasticizer diisodecyl phthalate into a high-speed mixer, knead to 120°C, then cold mix to 5...

Embodiment 2

[0032] The composition of the nano-composite thermoplastic elastomer of the present embodiment is: 65 parts of NBR nano-composite powder, 25 parts of PVC preplastic powder, 12 parts of ABS843412, 12 parts of magnesium hydroxide, 7.0 parts of antimony trioxide, 1.2 parts of stearic acid, 0.3 parts of sulfur, 1.2 parts of N-isopropyl-N'-phenyl-p-phenylenediamine, 0.8 parts of tetramethylthiuram disulfide, 0.4 parts of UV-5310, and 1.5 parts of polyethylene wax.

[0033] The weight ratio of the powdered NBR is: 100 parts of NBR with an acrylonitrile content of 42wt%, 0.3 parts of sulfur, 1.2 parts of stearic acid, 1.2 parts of N-isopropyl-N'-phenyl-p-phenylenediamine, and four parts of tetrasulfide 0.8 parts of methyl thiuram, 8 parts of montmorillonite Nanomer I.44PSS. The composition weight ratio of PVC preplastic powder is: PVC resin S-1000100 parts, antioxidant tetrakis [?-(3,5-di-tert-butyl-4-hydroxyphenyl) propionic acid] pentaerythritol 0.3 parts, calcium zinc 5.0 parts o...

Embodiment 3

[0036] The composition of the nanocomposite thermoplastic elastomer of this embodiment is: 75 parts of NBR nanocomposite powder, 35 parts of PVC preplastic powder, modifier ABS843415 parts, magnesium hydroxide 15 parts, antimony trioxide 5 parts, stearic acid 0.8 parts, 0.4 parts of sulfur, 0.8 parts of N-isopropyl-N'-phenyl-p-phenylenediamine, 1.0 parts of tetramethylthiuram disulfide, 10.5 parts of ultraviolet absorber UV-53, processing aid polyethylene wax 2.0 copies.

[0037] The weight ratio of the powdered NBR is: 100 parts of NBR with an acrylonitrile content of 36wt%, 0.8 parts of stearic acid, 0.4 parts of sulfur, 0.8 parts of N-isopropyl-N'-phenyl-p-phenylenediamine, tetrasulfide disulfide 1.0 parts of methyl thiuram, 8 parts of montmorillonite NanomerI.44PSS. The composition weight ratio of PVC premolded powder is 100 parts of PVC resin S-1000, 0.5 parts of tetrakis [?-(3,5-di-tert-butyl-4-hydroxyphenyl) propionic acid] pentaerythritol, stable calcium 8.0 parts of...

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Abstract

The invention provides an environment-friendly high and low temperature resistant and oil resistant flame-retardant nano-composite thermoplastic elastomer and a preparation process thereof. The nano-composite thermoplastic elastomer is prepared from the following components in parts by weight: 60 to 75 parts of NBR (Nitrile-Butadiene Rubber) nano-composite particles, 25 to 40 parts of PVC (polyvinyl chloride) premolding powder, 10 to 15 parts of modifier ABS (Acrylonitrile Butadiene Styrene), 10 to 15 parts of first flame retardant, 5.0 to 10 parts of second flame retardant, 0.8 to 1.2 parts of activating agent, 0.2 to 0.4 part of vulcanizing agent, 0.8 to 1.2 parts of anti-aging agent, 0.5 to 1.0 part of accelerator, 0.3 to 0.5 part of ultraviolet light absorber and 1.0 to 2.0 parts of processing aid. The thermoplastic elastomer provided by the invention is green and environment-friendly, resistant to ozone and excellent in mechanical property, high and low temperature resistance, oil immersion resistance and flame retardance and can be used for sheaths and shoes of flame-resistant, oil-resistant and heat-resistant flexible wires, elastomer cables, oil-resistant heavy flexible wires, movable cables and the like, as well as oil pipes and the like.

Description

technical field [0001] The invention relates to a nanocomposite thermoplastic elastomer and its preparation process. The elastomer can be used for flame-retardant, oil-resistant and heat-resistant flexible wires, elastomer cables, oil-resistant heavy-duty flexible wires, sheaths for mobile cables, etc., and can also be used for shoes and boots , tubing, etc. Background technique [0002] Flame-retardant wires and cables, and fire-fighting personnel's shoes and boots are often used in harsh environmental conditions, such as high temperature, strong ultraviolet radiation, high ozone concentration, chemical corrosion, oil pollution and other conditions. Harsh use environment will lead to the melting and decomposition of cable insulation layer and sheath layer, shoes and boots, which may easily cause short circuit, fire or casualties. Nitrile-butadiene rubber (NBR), as a copolymer rubber of butadiene and acrylonitrile, has the advantages of excellent oil resistance, aging resis...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L9/02C08L27/06C08L55/02C08K13/06C08K9/06C08K9/04C08K3/34C08K5/09C08K3/06C08K3/22B29B7/02
Inventor 张建耀左晓兵
Owner CHANGSHU INSTITUTE OF TECHNOLOGY
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