Difunctional mold lubricating adhesive containing molybdenum disulfide

A molybdenum disulfide, dual-function technology, applied in the field of rubber composite materials, can solve the problem of not being able to prevent the mold ejector from being stuck, and achieve the effect of preventing the stuck and prolonging the life of the mold.

Pending Publication Date: 2021-03-02
西安科悦电子材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is that the existing mold cleaning glue and mold moistening glue can only prevent the plastic seal from sticking to the mold after mold cleaning, but cannot prevent the jamming of the ejector pin of the mold.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Step 1: First put 5 parts of molybdenum disulfide powder and 15 parts of mold release agent into a stirring tank and stir and mix to make a prepolymer; Step 2: Mix 100 parts of unvulcanized rubber in an internal mixer, an open mill, an extruder Plasticize in the middle for 2-5 minutes, then add reinforcing filler, namely 30 parts of silicon dioxide, 15 parts of release agent, 0.3 parts of processing aid and 1 part of coloring agent, and add molybdenum disulfide powder after mixing for 5 minutes pre-polymer; Step 3: Finally, add 0.5 parts of vulcanizing agent and 1 part of vulcanization accelerator, control the temperature at 80-110°C and mix for 15-30 minutes to obtain a uniform rubber compound; Step 4: Reuse Forming machine forming sheet or strip mold washing initial raw materials are kneaded in a closed kneader, pressed into sheet materials, and finally cut into strip products.

Embodiment 2

[0023] Step 1: First put 13 parts of molybdenum disulfide powder and 19 parts of mold release agent into a stirring tank and stir and mix to make a pre-polymer; Step 2: Then put 100 parts of unvulcanized rubber in an internal mixer, open mill, Plasticize in the machine for 2-5 minutes, then add reinforcing filler, namely 43 parts of silicon dioxide, 19 parts of release agent, 3.2 parts of processing aid and 5 parts of coloring agent, and add molybdenum disulfide after mixing for 5 minutes. Prepolymer of powder; Step 3: Finally, add 4.3 parts of vulcanizing agent and 2 parts of vulcanization accelerator, control the temperature at 80-110°C and mix for 15-30 minutes to obtain a uniform rubber compound; Step 4: Then Forming with a molding machine to obtain sheet or strip-shaped mold washing raw materials, after kneading in a closed kneader, pressed into sheet-shaped materials, and finally cut into strip-shaped products.

Embodiment 3

[0025] Step 1: First put 20 parts of molybdenum disulfide powder and 22 parts of mold release agent into a stirring tank and stir and mix to make a pre-polymer; Step 2: Then put 100 parts of unvulcanized rubber in a ban Plasticize in the machine for 2-5 minutes, add reinforcing filler, namely 55 parts of silicon dioxide, 22 parts of release agent, 6 parts of processing aid and 8 parts of coloring agent, and add molybdenum disulfide after mixing for 5 minutes. Prepolymer of powder; Step 3: Finally, add 8 parts of vulcanizing agent and 3 parts of vulcanization accelerator, control the temperature at 80-110°C and knead for 15-30 minutes to obtain a uniform rubber compound; Step 4: Then Forming with a forming machine to obtain a sheet or strip as the initial raw material for mold washing, kneading in a closed kneader, pressing into a sheet material, and finally cutting into a strip product.

[0026] Finally, after the operator completes the mold cleaning, he puts the rubber strip ...

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PUM

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Abstract

The invention discloses a difunctional mold lubricating adhesive containing molybdenum disulfide. The difunctional mold lubricating adhesive is used for solving the problem that an existing mold lubricating adhesive can only prevent mold sticking caused by plastic package after mold cleaning but cannot prevent mold ejector rod blockage. The difunctional mold lubricating adhesive containing molybdenum disulfide is prepared from the following components in parts by mass: 100 parts of unvulcanized rubber, 30-55 parts of silicon dioxide, 5-20 parts of molybdenum disulfide powder, 15-22 parts of arelease agent, 1-8 parts of a coloring agent, 0.3-6 part of a processing aid, 1-3 parts of a vulcanization accelerator and 0.5-8 part of a vulcanizing agent. According to the difunctional mold lubricating adhesive containing molybdenum disulfide, the surface of a mold is lubricated to prevent mold sticking caused by plastic package after mold cleaning, and molybdenum disulfide particles and wax inthe mold release agent generate a synergistic effect to lubricate and protect an ejector rod of the mold, so that the problem of blockage of the ejector rod is prevented, and the service life of themold is prolonged.

Description

technical field [0001] The invention relates to the field of rubber synthetic materials, in particular to a rubber synthetic material containing molybdenum disulfide, which has lubricating protection and prevents plastic sealing from sticking to molds. Background technique [0002] Injection molding is a method of producing shapes for industrial products. Products usually use rubber injection molding and plastic injection molding. Injection molding can also be divided into injection molding molding method and die casting method. Injection molding machine (referred to as injection machine or injection molding machine) is the main molding equipment for making thermoplastics or thermosetting materials into plastic products of various shapes using plastic molding molds. Injection molding is realized through injection molding machines and molds. Injection mold is a tool for producing plastic products, and it is also a tool for giving plastic products complete structure and prec...

Claims

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Application Information

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IPC IPC(8): C08L23/16C08L9/00C08L9/06C08L7/00C08L23/06C08L91/06C08L83/04C08K13/02C08K3/22C08K5/544C08K3/36C08K3/30C08K5/3492
CPCC08L23/16C08L9/00C08L9/06C08L7/00C08L23/06C08K2003/3009C08K2201/011C08L2205/035C08K2003/2241C08K2003/2296C08K2201/014C08L91/06C08L83/04C08K13/02C08K3/22C08K5/544C08K3/36C08K3/30C08K5/34924
Inventor 王刚
Owner 西安科悦电子材料有限公司
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