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Intermediate rubber for aviation retreaded tire and preparation method thereof

A technology for retreading tires and intermediate rubber, which is applied in the field of intermediate armor composite resin, which can solve the problems of airline losses and impact on aviation safety, and achieve the effects of optimizing cord bonding, prolonging scorch time, and improving aging resistance

Inactive Publication Date: 2012-07-25
无锡翼龙航空设备有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the retreaded tires used by various foreign tire companies in China's civil aviation will experience one or two tire flips every year, which will affect aviation safety and cause great losses to airlines.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Embodiment 1 A kind of preparation method of aviation retreading tire intermediate rubber adopts the following steps, and its formula ratio is counted by weight parts:

[0017] a. Preparation of one-stage rubber: 1.5 parts of anti-aging agent 7F (4020), 2.0 parts of anti-aging agent RD, 2.5 parts of rubber adhesive RF-90, 2.5 parts of stearic acid SA, 2.5 parts of tackifying resin TKM-M, vulcanized 1.0 parts of active agent Z311, 5 parts of zinc oxide are fully mixed; then add 20 parts of carbon black N330 and 100 parts of natural smoked rubber NR1, put them into the internal mixer for mixing; keep the wind pressure of the top bolt at 0.60±0.05Mpa, press After 60 seconds of pushing the top bolt, raise the top bolt; then add 25 parts of carbon black N330 and 5 parts of aromatic oil, press the top bolt for 40 seconds, then raise the top bolt for cleaning; Open the door to unload after 40 seconds of top bolting, and get a section of glue; the hanging temperature of a sect...

Embodiment 2

[0021] Embodiment 2 A kind of preparation method of aviation retreading tire intermediate rubber adopts the following steps, and its formula ratio is counted in parts by weight:

[0022] a. Preparation of one-stage rubber: 2.0 parts of anti-aging agent 7F (4020), 2.5 parts of anti-aging agent RD, 3.0 parts of rubber adhesive RF-90, 3 parts of stearic acid SA, 3 parts of tackifying resin TKM-M, vulcanized 1.5 parts of active agent Z311, 7 parts of zinc oxide are fully mixed; then add 23 parts of carbon black N330 and 100 parts of natural smoked rubber NR1, put them into the internal mixer for mixing; keep the wind pressure of the top bolt at 0.60±0.05Mpa, press After 80 seconds of the top bolt, lift the top bolt; add 22 parts of carbon black N330 and 7 parts of aromatic oil, press the top bolt for 60 seconds, then raise the top bolt for cleaning; Open the door to unload after 60 seconds on the top bolt, and get a section of glue; the hanging temperature of a section of glue is ...

Embodiment 3

[0026] Embodiment 3 A kind of preparation method of aviation retreading tire intermediate rubber adopts the following steps, and its formula ratio is counted in parts by weight:

[0027]a. Preparation of one-stage rubber: 1.7 parts of anti-aging agent 7F (4020), 2.3 parts of anti-aging agent RD, 2.7 parts of rubber adhesive RF-90, 2.7 parts of stearic acid SA, 2.7 parts of tackifying resin TKM-M, vulcanized 1.3 parts of active agent Z311, 6 parts of zinc oxide are fully mixed; then add 21 parts of carbon black N330 and 100 parts of natural smoked rubber NR1, put them into the internal mixer for mixing; keep the wind pressure of the top bolt at 0.60±0.05Mpa, press Lift the top bolt after 70 seconds; then add 22 parts of carbon black N330 and 6 parts of aromatic oil, press the top bolt for 50 seconds, then raise the top bolt for cleaning; Open the door to unload after 50 seconds on the top bolt, and get a piece of glue; the glue hanging temperature of the piece of glue is less t...

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Abstract

The invention relates to an intermediate rubber for an aviation retreaded tire and a preparation method thereof. The preparation method is characterized by comprising the following steps: mixing natural bacon rubber NR1, carbon black N330, aromatic hydrocarbon oil, anti-aging agent 4020, anti-aging agent RD, rubber adhesive RF-90, stearic acid SA, tackifying resin TKM-M, cure activator Z311 and zinc oxide to obtain a primary rubber; refining the primary rubber into a secondary rubber; adding adhesive CS-964, scorch retarder CPT, insoluble sulfur IS-6005, accelerator MOR and accelerator TT into the secondary rubber, and carrying out secondary refining to obtain a tertiary rubber; and cooling the tertiary rubber, rubberizing, and discharging to obtain the intermediate rubber for an aviationretreaded tire. The intermediate rubber is prepared by using the TKM-M adhesive in the super tackifier TKM series as well as other novel materials, thereby enhancing the adhesive strength between theoriginal tire body and retreaded tire surface of the aviation retreaded tire, so that the adhesive strength is more than 13.66 KN / m and is more than twice of the standard specified by GB13651 in China and AC-145 in America.

Description

technical field [0001] The invention relates to an aviation retreading tire intermediate rubber and a preparation method thereof. The intermediate rubber is used to enhance the adhesive performance between the original carcass of the aviation retreading tire and the retreaded tread, and belongs to the technical field of intermediate nail composite resin in petrochemical industry. Background technique [0002] The original carcass and the retreaded tread of aviation retreaded tires are bonded with intermediate glue. High-strength bonding is an important safety guarantee for retreaded tires. The centrifugal force of the rotation and fall off. Its bonding strength is 6.83KN / m according to the standards stipulated by China's GB13651 and American AC-145. Domestic and foreign aviation retreaded tires can meet this standard, and most of its bonding strength is between 7-8 KN / m. Due to the provisions of the International Civil Aviation Convention Organization, domestic and foreign ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L7/00C08K13/02C08K3/04C08K5/09C08K3/22C08K3/06B29B7/28
Inventor 苏仁然唐新升李洪祥陈丽艳平振伟宫济群
Owner 无锡翼龙航空设备有限公司
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