CN102585308A

CN102585308A - Wear-resistant inner layer rubber of dichotomanthes rubber hose

Info

Publication number: CN102585308A
Application number: CN2012100568684A
Authority: CN
Inventors: 张鸿鸣
Original assignee: KUNMING CAILILAI TRADE CO Ltd
Current assignee: KUNMING CAILILAI TRADE CO Ltd
Priority date: 2012-03-06
Filing date: 2012-03-06
Publication date: 2012-07-18

Abstract

The invention belongs to the technical field of formulas of rubber products as wear-resistant inner layer rubber of dichotomanthes rubber hoses, and discloses wear-resistant inner layer rubber of a dichotomanthes rubber hose. A dichotomanthes rubber hose is utilized for adsorbing sand and mud and conveying solids or a mixture of solids and a liquid, and thus inner layer rubber of the dichotomanthes rubber hose needs good wear resistance. The wear-resistant inner layer rubber provided by the invention comprises 2.1 to 2.3g of sulphur, 6.9 to 7.1g of basic zinc sulfate, 29 to 31g of BR, 19 to 21g of SBR, 49 to 51g of NR, 2.7 to 2.9g of stearic acid, 79 to 81g of light calcium, 29 to 31g of white carbon black, 9 to 11g of transformer oil, 2.9 to 3.1g of glycerin, 1.1 to 1.3g of lemon yellow, 0.5 to 0.7g of medium chrome yellow, 0.7 to 0.9g of promoter C: E 0.8, DM: 0.6 and TMTD: 0.1, and 2.1 to 2.3g of an antioxidant 2264. The wear-resistant inner layer rubber of a dichotomanthes rubber hose can greatly improve mechanical property indexes such as wear resistance and the like, has the low abrasion less than or equal to 0.42/mm<2>, has a vulcanization rate the same as a vulcanization rate of a common rubber hose, has a uniform color and does not change after sunlight aging.

Description

Cowhells rubber hose wear resistant inner layer glue

Technical field

The invention belongs to the formula technique field of rubber item, be specifically related to a kind of rubber hose wear resistant inner layer glue.

Background technology

Rubber hose is by inner glue layer, and fiber (steel wire) enhancement layer is formed with outer glue-line.The Cowhells rubber hose is used to inhale sand and inhales mud, belongs to the rubber hose of conveying solid substance or solid and liquid mixture, therefore requires the rubber material (being the internal layer sizing material) of its inner glue layer to have good wear resistance.Because the color and luster of this kind rubber hose inner glue layer exactly likes the muscle of cooked beef, transparently be isabelline, so be called the Cowhells rubber hose.

Summary of the invention

The standard that Cowhells rubber hose internal layer sizing material is pressed GB/T-2009, its abrasion should be not more than 0.45/mm ²(Akron), tensile strength should be not less than 10MPa, and elongation rate of tensile failure is not less than 300%.The used sizing compound formula gum content 35% of original production adopts NR (natural) and BR (along fourth), though price is low; But physical and mechanical properties indexs such as its wear resistance, tensile strength, elongation rate of tensile failure are low; The daylight weather stain is remarkable, and result of use is poor, and the user is scarcely satisfied; Sulfuration connects than common slow 2 times in addition.

The object of the present invention is to provide a kind of sizing compound formula that is used for Cowhells rubber hose inner glue layer, improving the physical and mechanical properties indexs such as wear resistance of this kind rubber hose inner glue layer, and accelerate vulcanization rate.

The prescription of wear resistant inner layer glue of the present invention is:

Sulphur 2.1～2.3 grams,

Basic zinc sulfate 6.9～7.1 grams,

BR 29～31 grams,

SBR 19～21 grams,

NR 49～51 grams,

Triple Pressed Stearic Acid 2.7～2.9 grams,

Fine particle calcium carbonate 79～81 grams,

WHITE CARBON BLACK 29～31 grams,

Transformer oil 9～11 grams,

Glycerine 2.9～3.1 grams,

Lemon yellow 1.1～1.3 grams,

Medium chrome yellow medium yellow 0.5～0.7 gram,

Short C:E0.8, DM:0.6, TMTD:0.1 0.7～0.9 gram,

Anti-aging agent 2,264 2.1～2.3 grams.

More than prescription is that the applicant gets through TE institute.Three-glue combination in the prescription has increased SBR (butyl) glue of antiwear heat resisting; Vulcanization system is taked four kinds of accelerator combinations, improves vulcanization rate; Adopt two kinds of tinting material complementations on the color and luster.

Beneficial effect of the present invention: can significantly improve the physical and mechanical properties indexs such as wear resistance of sizing material, and accelerate vulcanization rate.

Embodiment

Embodiment.Sizing compound formula is following:

Sulphur 2.2 grams,

Basic zinc sulfate 7 grams,

BR 30 grams,

SBR 20 grams,

NR 50 grams,

Triple Pressed Stearic Acid 2.8 grams,

Fine particle calcium carbonate 80 grams,

WHITE CARBON BLACK 30 grams,

Transformer oil 10 grams,

Glycerine 3.0 grams,

Lemon yellow 1.2 grams,

Medium chrome yellow medium yellow 0.6 gram,

Short C:E0.8, DM:0.6, TMTD:0.1 0.8 gram,

Anti-aging agent 2,264 2.2 grams.

Above sizing material gum content 42%, proportion 1.2, its physical and mechanical properties is undertaken by the current standards TP, and the result shows its tensile strength greater than 10MPa, and elongation rate of tensile failure is not less than 350%, and abrasion are not more than 0.42/mm ², viscosity increases substantially.In addition, the sulfuration of vulcanization rate and conventional hoses quite; Color even does not have change after day photoaging.Cowhells rubber hose product gives very high evaluation after the user uses, the life-span improves more than 3 times with original comparing.Though price increases, it is more than in the past to order goods, and has improved economic benefit, has promoted the development of enterprise.

Above embodiment has been merely the present invention has been described further, and scope of the present invention does not receive the limitation of the embodiment that lifts.

Claims

1. Cowhells rubber hose wear resistant inner layer glue is characterized in that prescription is: