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High-flame-retardancy soft PVC antistatic material and preparation method thereof

A high flame retardant and antistatic technology, applied in the field of graphene/polymer composite materials, can solve the problems of difficult dispersion, large amount of plasticizer and flame retardant, and poor coordination effect, so as to reduce the amount of plasticizer, The effect of reducing the amount of flame retardants and blocking the entry of heat and oxygen

Pending Publication Date: 2020-11-20
上海烯古能源科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention aims at the mutual restriction among antistatic properties, flame retardancy and softness in antistatic and flame retardant soft PVC, the more the amount of conductive filler is, the greater the amount of plasticizer and flame retardant is, and the emerging material graphene The problem of difficult dispersion and poor compounding effect encountered in soft PVC provides a new type of high flame retardancy soft PVC antistatic material and its preparation method

Method used

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Effect test

preparation example Construction

[0022] A method for preparing a highly flame-retardant soft PVC antistatic material provided by an aspect of the embodiments of the present invention includes:

[0023] Mix graphene, carbon nanotubes, oxidized polyethylene wax, polyethylene wax, EBS wax, and stearic acid evenly to form a graphene masterbatch material;

[0024] The graphene masterbatch material, PVC resin, plasticizer, heat stabilizer, impact modifier, and flame retardant are uniformly mixed, and then melted to obtain a soft PVC antistatic material with high flame retardancy.

[0025] In some embodiments, the preparation method of the novel high flame-retardant soft PVC antistatic material includes: using graphene and carbon nanotubes as conductive fillers and synergistic flame retardants, supplemented with composite dispersant oxidized polyethylene Wax, polyethylene wax, EBS wax and stearic acid are prepared as graphene masterbatch, and graphene masterbatch, PVC resin, plasticizer, heat stabilizer, impact modi...

Embodiment 1

[0063] Weigh 0.5 parts by weight of graphene with a sheet diameter of 10-15 μm, 2 parts by weight of multi-wall carbon nanotubes with a length of 20-30 μm, 0.2 parts by weight of oxidized polyethylene wax with a number average molecular weight of 5000-6000, 0.2 parts by weight Number average molecular weight is the polyethylene wax of 3000-4000, the EBS wax of 0.3 weight part, the stearic acid of 0.2 weight part are mixed and prepared to form graphene masterbatch material;

[0064] Weighing 100 parts by weight of PVC resin with a degree of polymerization of 1200, 40 parts by weight of DOP, 6 parts by weight of dibutyltin dilaurate, 4 parts by weight of ACR, 2 parts by weight of antimony trioxide, 3 parts by weight of ammonium polyphosphate, 5 parts by weight of graphene masterbatch material, the above raw materials were mixed at 165°C for 5 minutes, then taken out and pressed into tablets to obtain a soft PVC antistatic material with high flame retardancy. The performance test ...

Embodiment 2

[0066] Weigh 0.8 parts by weight of graphene with a sheet diameter of 10-15 μm, 3 parts by weight of multi-wall carbon nanotubes with a length of 20-30 μm, 0.5 parts by weight of oxidized polyethylene wax with a number average molecular weight of 5000-6000, 0.3 parts by weight Number average molecular weight is the polyethylene wax of 3000-4000, the EBS wax of 0.6 weight part, the stearic acid of 0.3 weight part are mixed and prepared to form graphene masterbatch material;

[0067] Take by weighing 100 parts by weight of PVC resin with a degree of polymerization of 1500, dimethyl phthalate of 50 parts by weight, dioctyltin maleate of 7 parts by weight, ACR of 4.5 parts by weight, antimony trioxide of 2.5 parts by weight, 4 Parts by weight of ammonium polyphosphate and 7 parts by weight of graphene masterbatch material, the above raw materials were mixed at 170°C for 2 minutes, then taken out and pressed into tablets to obtain a soft PVC antistatic material with high flame retar...

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Abstract

The invention discloses a soft PVC antistatic material with high flame retardancy and a preparation method thereof. The preparation method comprises the following steps: uniformly mixing graphene, carbon nanotubes, oxidized polyethylene wax, polyethylene wax, EBS wax and stearic acid to form a graphene master batch material; and uniformly mixing the graphene master batch material, PVC resin, a plasticizer, a heat stabilizer, an impact modifier and a flame retardant, and carrying out a melting treatment to obtain the soft PVC antistatic material with high flame retardancy. According to the preparation method, the multi-element space synergistic flame-retardant effect among graphene, carbon nanotubes, a flame retardant and PVC is fully exerted, the dosage of the flame retardant is greatly reduced, and the flame-retardant effect is improved. In addition, due to the synergistic conductive effect of graphene and carbon nanotubes, on the basis of achieving an antistatic effect, the use amount of a conductive filler can be greatly reduced, the material hardness is reduced, the use amount of the plasticizer is further reduced, the use amount of the flame retardant is further reduced, the flame retardance is improved, and the application range is expanded.

Description

technical field [0001] The invention relates to an antistatic material, in particular to a novel high flame-retardant soft PVC antistatic material and a preparation method thereof, belonging to the technical field of graphene / polymer composite materials. Background technique [0002] PVC has long been one of the most important polymer products in people's production and life, and has become the second largest plastic consumer product in the world after polyethylene. Among them, soft PVC is mainly used to prepare pipes, sheets and membranes. With the development of society, people have higher and higher performance requirements for soft PVC. Although soft PVC has outstanding performance, it loses the original flame retardancy advantage of PVC due to the addition of a large amount of plasticizers, and its Surface resistance up to 10 14 -10 17 Ω, prone to electrostatic hazards, which seriously limits the further development of soft PVC. [0003] The PVC composite antistatic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/06C08L23/30C08L23/06C08K13/02C08K3/04C08K5/09C08K5/20C08K3/22C08K3/32C08K5/12C08J3/22
CPCC08L27/06C08J3/223C08L2201/02C08L2201/04C08L2205/035C08L2205/02C08K2201/001C08K2003/323C08J2327/06C08J2423/30C08J2423/06C08L23/30C08L23/06C08K13/02C08K3/042C08K3/041C08K5/09C08K5/20C08K3/2279C08K3/32C08K5/12
Inventor 庄鹏程张凌李怡霏
Owner 上海烯古能源科技有限公司
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