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High-performance flame-retardant natural rubber (NR) and preparation method thereof

A natural rubber and high-performance technology, applied in the field of high-performance flame-retardant natural rubber and its preparation, to achieve the effect of improving flame retardancy, taking into account the properties of rubber and flame-retardant effect

Inactive Publication Date: 2016-06-08
QINGDAO TKS SEALING IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The invention provides a high-performance flame-retardant natural rubber and its preparation method, which solves the problem of the application of natural rubber in some special occasions, and takes into account the balance between the performance of the rubber material and the flame-retardant effect

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] A high-performance flame-retardant natural rubber, its raw material components include: NR (natural rubber) 70 parts, CPE (chlorinated polyethylene) 10 parts, zinc oxide 3 parts, stearic acid 0.5 part, antioxidant 0.5 parts of RD, 0.5 parts of anti-aging agent 4010NA, 0.5 parts of super tackifying resin, 0.5 parts of coumarone, 11520 parts of N23410 parts, 11655 parts of white carbon black, 0.3 parts of SI-690, 1.3 parts of insoluble sulfur, accelerator CZ0 .8 parts, 0.1 parts of CTP, 13 parts of decabromodiphenyl ether, 2 parts of antimony trioxide. The component content (weight component content) ratio of rubber type CPE (chlorinated polyethylene) and NR (natural rubber) is 10:90. The hardness (shoreA) of natural rubber is 65-70. The tensile strength (MPA) of natural rubber is 20-23. The elongation (%) of natural rubber is 450-550. The flame retardant rating of natural rubber (UL94 flame retardant standard) is v-0.

Embodiment 2

[0019] A high-performance flame-retardant natural rubber, its raw material components include: NR (natural rubber) 90 parts, CPE (chlorinated polyethylene) 30 parts, zinc oxide 6 parts, stearic acid 1.2 parts, antioxidant 1 part of RD, 1 part of anti-aging agent 4010NA, 1 part of super tackifying resin, 1 part of Coumarone, 1 part of N11535, 5 parts of N23425, 11658 parts of white carbon black, 0.5 parts of SI-690.5 parts, 2.2 parts of insoluble sulfur, 1.6 parts of accelerator CZ, 0.3 parts of CTP, 20 parts of decabromodiphenyl ether, 7 parts of antimony trioxide. The hardness (shoreA) of natural rubber is 65-70. The tensile strength (MPA) of natural rubber is 20-23. The elongation (%) of natural rubber is 450-550. The flame retardant rating of natural rubber (UL94 flame retardant standard) is v-0. The component content (weight component content) ratio of rubber type CPE (chlorinated polyethylene) and NR (natural rubber) is 10:90.

Embodiment 3

[0021] A high-performance flame-retardant natural rubber, its raw material components include: NR (natural rubber) 80 parts, CPE (chlorinated polyethylene) 20 parts, zinc oxide 5 parts, stearic acid 1 part, antioxidant 0.8 parts of RD, 0.8 parts of anti-aging agent 4010NA, 0.8 parts of super tackifying resin, 0.8 parts of coumarone, 8 parts of N11528, 8 parts of N23418, 11657 parts of white carbon black, 0.4 parts of SI-690, 2 parts of insoluble sulfur, accelerator CZ1 .2 parts, 0.2 parts of CTP, 17 parts of decabromodiphenyl ether, 5 parts of antimony trioxide. The hardness (shoreA) of natural rubber is 65-70. The tensile strength (MPA) of natural rubber is 20-23. The elongation (%) of natural rubber is 450-550. The flame retardant rating of natural rubber (UL94 flame retardant standard) is v-0. The component content (weight component content) ratio of rubber type CPE (chlorinated polyethylene) and NR (natural rubber) is 30:70.

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Abstract

The invention relates to a high-performance flame-retardant natural rubber (NR) and a preparation method thereof. The NR is prepared from the following raw materials in parts by weight: 70-90 parts of NR, 10-30 parts of CPE (chlorinated polyethylene), 3-6 parts of zinc oxide, 0.5-1.2 parts of stearic acid, 0.5-1 part of anti-aging agent RD, 0.5-1 part of anti-aging agent 4010 NA, 0.5-1 part of super tackifying resin, 0.5-1 part of coumarone, 20-35 parts of N115, 10-25 parts of N234, 5-8 parts of white carbon black 1165, 0.3-0.5 part of SI-69, 1.3-2.2 parts of insoluble sulfur, 0.8-1.6 parts of accelerator CZ, 0.1-0.3 part of CTP, 13-20 parts of decabromodiphenyl oxide and 2-7 parts of antimony trioxide. The method can solve the problem of application of NR in some special occasions, and can give consideration to the balance between rubber properties and flame retardancy. The method improves the flame retardancy of the compounded natural rubber on the premise of not damaging the physical properties of the natural rubber, so that the compounded rubber of the natural rubber can reach Grade V-0 in UL94 Flame Retardancy Standard and satisfies the flame-retardant requirements for part of mobile equipment transmission mechanisms for fire fighting rescue.

Description

technical field [0001] The invention belongs to the technical field of rubber raw materials and preparation, and relates to a high-performance flame-retardant natural rubber and a preparation method thereof. Background technique [0002] Natural rubber has the advantages of high strength, high elasticity, and high wear resistance, so it is widely used in tires, crawlers, conveyor belts, shock absorbers and other fields. However, since natural rubber is flammable, it will not Automatic extinguishing, thus hindering the application of natural rubber in some special occasions, such as the transmission mechanism of some mobile equipment used in the fire rescue field. Therefore, there is a need for a high-performance flame-retardant natural rubber and its preparation method, which can solve the application problems of natural rubber in some special occasions, and take into account the balance between the properties of the rubber material and the flame-retardant effect. Contents...

Claims

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Application Information

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IPC IPC(8): C08L7/00C08L23/28C08K13/02C08K3/36C08K3/22C08K5/06C08K3/04
CPCC08K2201/014C08L7/00C08L2201/02C08L2205/035C08L23/286C08K13/02C08K2003/2296C08K3/36C08K3/2279C08K5/06C08K3/04
Inventor 刘建强张波徐婷婷
Owner QINGDAO TKS SEALING IND
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