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Formulation of high-concentration ozone resistant rubber tube

A high-concentration, ozone-based technology, applied in the field of rubber hose, to achieve the effects of increased service life, stable extrusion process, and good resistance to gasoline and ethanol gasoline

Inactive Publication Date: 2011-01-26
TIANJIN PENGYI GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, a better fuel tank hose used in China can only meet the requirement of 50pphm ozone concentration resistance. With the rapid development of automobiles, the safety and environmental requirements of auto parts are becoming higher and higher. The fuel tank filler of some models The rubber hose must meet the ozone concentration requirement of 200pphm. Therefore, in order to improve the high-concentration ozone resistance of the rubber hose of the fuel tank of the automobile without changing the rubber material, this has become an urgent need to solve in the rubber hose industry, and many people are still studying it. A technical problem that can be effectively solved

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Nitrile PVC 100 parts

[0031] N550 20 copies

[0032] N990 40 copies

[0033] DOP 5 servings

[0034] MgO 5 parts

[0035] Zinc oxide 10 parts

[0036] DM 1.5 copies

[0037] BIPB 3 copies

[0038] TAIC-70 1.5 parts

[0039] Sulfur 0.2 parts

[0040] Coomalon 3 servings

[0041] 2 parts microcrystalline wax

[0042] 1 part stearic acid

[0043] 4010Na 1 part

[0044] RD 2 copies

[0045] The XK-160 open mixer produced by Shanghai Shuangyi Machinery Co., Ltd. is used to masticate nitrile PVC, and then mix it with other compounding ingredients in a conventional manner. After the mixed rubber was parked overnight, the GT-7014-A10C plate vulcanizing machine produced by Taiwan High Speed ​​Rail Testing Instrument Co., Ltd. was used to vulcanize and mold. The 3MR-3RV-140 dynamic ozone aging chamber produced in Germany was used for the ozone aging test. (The following examples all adopt the same method)

[0046] Oil resistance and ozone resistance are as follow...

Embodiment 2

[0051] Nitrile PVC 100 parts

[0052] N550 40 copies

[0053] N990 20 copies

[0054] DOP 15 servings

[0055] MgO 15 parts

[0056] Zinc oxide 4 parts

[0057] DM 3 copies

[0058] BIPB 1.5 copies

[0059] TAIC-70 2.5 parts

[0060] Sulfur 0.4 parts

[0061] Comerone 5 parts

[0062] 1 part microcrystalline wax

[0063] 3 parts stearic acid

[0064] 4010Na 2 parts

[0065] RD 1 copy

[0066]Oil resistance and ozone resistance are as follows:

[0067] Resistance to 93# gasoline (40℃×70h) volume change 17.58%

[0068] Ethanol-resistant modified fuel oil (40℃×70h) volume change 23.67%

[0069] Ozone resistance (200pphm 40℃×70h tensile 20%) no cracks

Embodiment 3

[0071] Nitrile PVC 100 parts

[0072] N550 30 copies

[0073] N990 30 copies

[0074] DOP 10 servings

[0075] MgO 10 parts

[0076] Zinc oxide 7 parts

[0077] DM 2 copies

[0078] 2 copies of BIPB

[0079] TAIC-70 2 copies

[0080] Sulfur 0.3 parts

[0081] Coumarone 4 servings

[0082] Microcrystalline wax 1.5 parts

[0083] Stearic acid 2 parts

[0084] 4010Na 1.5 parts

[0085] RD 1.5 parts

[0086] Oil resistance and ozone resistance are as follows:

[0087] Resistance to 93# gasoline (40℃×70h) volume change 18.26%

[0088] Ethanol-resistant modified fuel oil (40℃×70h) volume change 24.35%

[0089] Ozone resistance (200pphm 40℃×70h tensile 20%) no cracks

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PUM

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Abstract

The invention relates to a formulation of a high-concentration ozone resistant rubber tube, which comprises the following compositions by mass parts: 100 parts of butyronitrile PVC rubber, 20 to 40 parts of fast extruding furnace black (FEF), 20 to 40 parts of MT-N990, 5 to 15 parts of diphenyl octyl phosphate(DOP), 5 to 15 parts of light magnesium oxide, 4 to 10 parts of zinc oxide ( ZnO ), 1.5 to 3 parts of dibenzothiazyl disulfide, 1.5 to 3 parts of 1, 4-bis(tert-butyl peroxy diisopropyl) benzene, 1.5 to 2.5 parts of trially isocyanurate, 0.2 to 0.4 part of sulfur, 3 to 5 parts of coumarone, 1 to 3 parts of stearic acid, 1 to 2 parts of microcrystalline wax, 1 to 2 parts of N-isopropyl-N'-diphenyl-para-phenylene diamine, and 1 to 2 parts of 2, 2, 4-trimethyl-1, 2-dihyaroquinoline polymer. Compared with the traditional formulation, the formulation of the invention improves the function of high-concentration ozone resistance of butyronitrile PVC rubber and leads the butyronitrile PVCrubber to be suitable to the extrusion processing for producing the rubber tube of fuel tank filler, thereby improving the service life of the rubber tube of an automobile fuel tank filler and bettersatisfying the requirements of fuel resistance and ozone resistance of the rubber tube of the automobile fuel tank filler.

Description

technical field [0001] The invention relates to the technical field of rubber hoses, in particular to the formula of a nitrile PVC resistant to high-concentration ozone rubber hoses. Background technique [0002] High-concentration ozone-resistant hose mainly refers to the fuel tank filler hose used in automobiles. The hose is made of full rubber extrusion, and the material is nitrile PVC rubber. The ozone-resistant rubber hose of the car works in gasoline or ethanol gasoline medium, and is often placed in the air and exposed to sunlight. Due to the effect of sunlight and ultraviolet rays, the surface of the rubber hose will be cracked, causing the hose to rupture and leak oil and cannot work normally. These are all caused by ozone. According to the characteristics of rubber materials, rubbers that are both oil-resistant and ozone-resistant include fluorine rubber, chlorohydrin rubber, and nitrile PVC rubber. Since the first two rubbers are relatively expensive, nitrile PVC...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L9/02C08L27/06C08K13/02C08K3/04C08K3/22C08K5/47C08K5/14
Inventor 张洪起张瑞造
Owner TIANJIN PENGYI GRP CO LTD
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