Foaming mold cleaning adhesive tape without carcinogenic, mutagenic or reproductive toxic components

A reproductive toxicity and mutagenic technology, applied to other household appliances, household appliances, household components, etc., can solve the problems of not clearly avoiding the use of CMR substances, safety, and easy to fly into the air, so as to achieve good mold cleaning effect and increase rubber Effect of internal pressure and easy ejection

Active Publication Date: 2021-05-28
TECORE SYNCHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, other components such as fillers, etc., are also easy to fly into the air during the production process of the mold cleani

Method used

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  • Foaming mold cleaning adhesive tape without carcinogenic, mutagenic or reproductive toxic components

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0051]A second aspect of the invention provides a method of preparing a foaming cleaning strip such as carcinogenic, mutant or reproductive die agents as described above, comprising the steps of:

[0052](1) Put the three-membered ethylene ethylene rubber and the tenthrote rubber to the mesh for 2 minutes, then add a filler, cleaner, release agent and auxiliary mix for 3 minutes;

[0053](2) Add a foaming agent, a curing agent, and a bubble agent to 100 ° C to obtain a mixed glue.

[0054](3) The above-mentioned mixed rubber is extruded, caulced, and cropped the clemper strip.

Example Embodiment

[0055]Example

[0056]The present invention will be specifically described by way of examples. It is necessary to indicate here that the following examples are intended to be further illustrated by the present invention, and cannot be understood to limit the scope of the invention, and some non-essential improvements made by the present invention according to the above-described present invention And adjust, still belong to the scope of the present invention. The following is the example form, which is prepared according to the following method: putting the raw gum into the mesh for 3 minutes, add filler, cleaner, release agent, pigment mixed 3 min, foaming agent, vulcanizing agent mixture Refine to 100 ° C splitting and get the mixture. Further, the mixture is extruded, caulded, and the cleaning strip is made.

[0057]Table 1 Embodiment Table (in the table in the table in kilograms)

[0058] raw material name Example 1 Example 2 Example 3 Example 4 Example 5 Example 6 Contrast 1 Contrast...

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PUM

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Abstract

The invention relates to the technical field of electronic packaging mold cleaning, in particular to a foaming mold cleaning rubber strip free of carcinogenic, mutagenic or reproductive toxic components. Preparation raw materials do not belong to CMR components; The preparation raw materials comprise, by weight, 20-40 parts of ethylene propylene diene monomer, 50-80 parts of butadiene rubber, 0.5-6 parts of a foaming agent, 40-85 parts of a filler, 3-10 parts of a mold cleaning agent, 0-15 parts of a mold release agent, 1-5 parts of an auxiliary foaming agent and 1-3 parts of a curing agent; and the preparation raw materials do not belong to the CMR components. The preparation raw materials of the foaming mold cleaning rubber strip do not contain the components belonging to CMR, and contain the foaming agent, so that the internal pressure of rubber can be increased during mold pressing and mold cleaning, seepage of the mold cleaning agent is facilitated, and a vulcanized rubber sheet is high in shrinkage rate and easy to separate from a mold. In addition, by regulating and controlling components and proportions of the mold cleaning agent, the mold release agent, the foaming agent and the like, the foaming mold cleaning rubber strip which is good in mold cleaning effect and good in mold release operability is prepared.

Description

technical field [0001] The invention relates to the technical field of electronic packaging mold cleaning, in particular to a foam mold cleaning adhesive strip that does not contain carcinogenic, mutagenic or reproductive toxic components. Background technique [0002] During injection molding or compression molding of plastics, rubber, epoxy resins, composite materials, etc., residues generated by heating molding materials are easy to adhere to the surface of the mold, such as exudates on the surface of the product, release agents, volatiles, etc. Classification, the mold often produces different degrees of pollution due to repeated operations on the working surface, which not only damages the appearance quality of the product, but also affects the output, and also causes mold corrosion. Regularly clean the mold and develop efficient, cheap, and pollution-free mold cleaning Technology is increasingly necessary. [0003] Due to the adhesion of epoxy resin to the metal layer...

Claims

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Application Information

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IPC IPC(8): B29C33/72B29C69/00C08L9/00C08L23/16C08K13/04C08K7/26C08K5/09C08K5/5425C08K5/20C08J9/10B29L31/34
CPCB29C33/72B29C48/0012B29C48/0011B29C48/0022C08J9/103C08J9/0061C08J9/0066C08J9/0023C08J9/0028C08J9/0042C08J9/0095B29L2031/34C08J2203/04C08J2309/00C08J2423/16C08K13/04C08K7/26C08K5/09C08K5/5425C08K5/20
Inventor 胡肖霞杜茂松
Owner TECORE SYNCHEM
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