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Covering rubber compound for food grade white conveyer belt and production technology thereof

A technology of rubber composition and conveyor belt, which is applied in the field of covering rubber composition for food-grade white conveyor belt and its production process, to achieve the effects of expanding the scope of use, reasonable design, and reducing costs

Inactive Publication Date: 2017-07-07
青岛六特橡胶有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to provide a food-grade white conveyor belt covering rubber composition and its production process in view of the defects that the above-mentioned existing conveyor belts do not meet the requirements of the industry

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] A food-grade white conveyor belt covering rubber composition is prepared from the following raw materials:

[0019] 100 parts of white zou sheet natural rubber or 1# smoked sheet rubber, 4 parts of zinc oxide, 1.5 parts of stearic acid

[0020] Anti-aging agent paraffin 0.8 parts, anti-aging agent MB 2 parts,

[0021] Fumed silica Degussa A200 20 parts, barium sulfate 55 parts,

[0022] 0.5 parts of sulfur,

[0023] Accelerator TETD 0.6 parts, TMTD 0.6 parts, DTDM 1.3 parts

Embodiment 2

[0025] A food-grade white conveyor belt covering rubber composition is prepared from the following raw materials:

[0026] 100 parts of white zou sheet natural rubber or 1# smoked sheet rubber, 4 parts of zinc oxide, 1.5 parts of stearic acid

[0027] Anti-aging agent paraffin 0.8 parts, anti-aging agent MB 2 parts,

[0028] Precipitated white carbon black HD165M 25 parts, barium sulfate 58 parts,

[0029] 0.5 parts of sulfur,

[0030] Accelerator TETD 0.6 parts, TMTD 0.6 parts, DTDM 1.3 parts

Embodiment 3

[0032] A kind of food-grade white conveyer belt is used for covering rubber composition processing technology, mixes according to the formula of embodiment 1, embodiment 2, and its steps are as follows:

[0033] A Cleaning of internal mixer and calendering equipment: take spare natural rubber, use internal mixer and open mixer to masticate the natural rubber, and bring out impurities in the equipment during the mastication process, until the equipment is masticated again, the rubber There are no impurities visible to the naked eye in the material. The raw rubber used for cleaning processing equipment is used for the production of other rubber products without environmental protection requirements after mastication.

[0034] B. Mixing: Set the temperature of the mixer to 90°C and the speed to 60r / min, put in white Zou flakes of natural rubber or 1# smoked rubber for pressure mastication, and add zinc oxide, stearic acid, anti-aging Add paraffin wax, MB, etc., and then banbury ...

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PUM

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Abstract

The invention belongs to the technical field of covering rubber production, and in particular relates to a covering rubber composition for a food-grade white conveyor belt and a production process thereof; the rubber formula is reasonably designed and meets the requirements of national industry standards through various tests; the technical scheme It makes up for the shortage of the conveyor belt use place in the existing national standards and industry standards, meets the needs of the food industry for conveyor belts, and achieves great results for enterprises in reducing costs and meeting customer requirements; the invention expands It widens the scope of use of the conveyor belt and is suitable for the use environment with large transportation volume and contact with food.

Description

technical field [0001] The invention belongs to the technical field of covering rubber production, and in particular relates to a covering rubber composition for a food-grade white conveyor belt and a production process thereof. Background technique [0002] At present, there are no requirements for food-grade conveyor belts in national standards (GB / T7984) and chemical industry standards (HG / T3782, HG / T3714), and food-grade conveyor belts are involved in HG / T2818 "Light Conveyor Belts". However, the specific hygienic requirements for food-grade conveyor belts are not mentioned, and there are cases where food-grade conveyor belts are used in practical applications (such as salt factories, etc.). The existing standard GB / T7984 "General Purpose Fabric Core Conveyor Belt" does not apply to food conveyor belts, and other special requirements for conveyor belts such as GB / T10822 "General Purpose Fabric Core Flame Retardant Conveyor Belt", GB / T20021 "Canvas Core Resistance Heat C...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L7/00C08L91/06C08K13/02C08K3/22C08K5/09C08K3/36C08K3/30B29B7/28B29B7/00
CPCC08L7/00B29B7/002B29B7/28C08L91/06C08K13/02C08K2003/2296C08K5/09C08K3/36C08K2003/3045
Inventor 唐春峰马永开郭忠凤
Owner 青岛六特橡胶有限公司