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Production process of degradable sealant

A production process and technology of sealant, applied in the field of sealant, can solve the problems that the sealant cannot well meet the sealing effect and the difficulty of natural degradation, and achieve the effects of fast degradation rate, non-toxic stability and good stability

Pending Publication Date: 2021-04-09
李想
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the above-mentioned technical problems, the object of the present invention is to provide a kind of degradable sealant production process: by preparing modified rubber, photocatalyst, degradable material, then by plasticizing modified rubber and chlorinated polyethylene to obtain Plasticizing material, then mixing the plasticizing material, calcium stearate, antioxidant, plasticizer, photocatalyst, and degradation material evenly, after cooling, chop into granules to obtain the mixing material, and adding the mixing material to acetic acid The mixture of butyl ester and methylcyclohexane is evenly dispersed to obtain a degradable sealant, which solves the problem that the existing sealant cannot meet the sealing effect well and is difficult to degrade naturally

Method used

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  • Production process of degradable sealant

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Effect test

Embodiment 1

[0039] This embodiment is a production process of degradable sealant, comprising the following steps:

[0040] Step 1: Weigh 40 parts by weight of modified rubber, 4 parts of chlorinated polyethylene, 0.2 part of calcium stearate, 0.02 part of antioxidant, 2 parts of plasticizer, 0.1 part of photocatalyst, 3 parts of degradation material, acetic acid 15 parts of butyl esters and 12 parts of methylcyclohexane are set aside;

[0041] Step 2: masticating the modified rubber and chlorinated polyethylene to obtain the plasticizing material, then mixing the plasticizing material, calcium stearate, antioxidant, plasticizer, photocatalyst, and degradation material evenly, and cooling Chopped into granules to obtain the mixed material;

[0042] Step 3: Add the mixing material to the mixed solution of butyl acetate and methylcyclohexane, and disperse evenly under the condition of rotating speed of 500-800r / min to obtain the degradable sealant.

[0043] The antioxidant is antioxidant 1...

Embodiment 2

[0065] This embodiment is a production process of degradable sealant, comprising the following steps:

[0066] Step 1: Weigh 50 parts of modified rubber, 6 parts of chlorinated polyethylene, 0.3 part of calcium stearate, 0.03 part of antioxidant, 3 parts of plasticizer, 0.3 part of photocatalyst, 4 parts of degradation material, acetic acid 20 parts of butyl ester and 16 parts of methylcyclohexane, spare;

[0067] Step 2: masticating the modified rubber and chlorinated polyethylene to obtain the plasticizing material, then mixing the plasticizing material, calcium stearate, antioxidant, plasticizer, photocatalyst, and degradation material evenly, and cooling Chopped into granules to obtain the mixed material;

[0068] Step 3: Add the mixing material to the mixture of butyl acetate and methylcyclohexane, and disperse evenly under the condition of rotating speed of 650r / min to obtain the degradable sealant.

[0069] The antioxidant is antioxidant 1010; the plasticizer is epoxi...

Embodiment 3

[0091] This embodiment is a production process of degradable sealant, comprising the following steps:

[0092] Step 1: Weigh 60 parts of modified rubber, 8 parts of chlorinated polyethylene, 0.4 part of calcium stearate, 0.04 part of antioxidant, 5 parts of plasticizer, 0.5 part of photocatalyst, 5 parts of degradation material, acetic acid 25 parts of butyl esters and 20 parts of methylcyclohexane are set aside;

[0093] Step 2: masticating the modified rubber and chlorinated polyethylene to obtain the plasticizing material, then mixing the plasticizing material, calcium stearate, antioxidant, plasticizer, photocatalyst, and degradation material evenly, and cooling Chopped into granules to obtain the mixed material;

[0094] Step 3: Add the mixing material to the mixed solution of butyl acetate and methylcyclohexane, and disperse evenly under the condition of rotating speed of 800r / min to obtain the degradable sealant.

[0095] The antioxidant is antioxidant 1076; the plastic...

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Abstract

The invention discloses a production process of a degradable sealant. The production process comprises the following steps: plastifying modified rubber and chlorinated polyethylene to obtain a plastified material, uniformly mixing the plastified material, calcium stearate, an antioxidant, a plasticizer, a photocatalyst and a degradable material, conducting cooling, and conducting chopping to form particles to obtain a mixed material; and adding the mixed material into a mixed solution of butyl acetate and methylcyclohexane, and conducting uniform dispersing to obtain the degradable sealant. In the production process, urea is added to modify titanium dioxide, so that the photocatalytic effect of the photocatalyst is improved; the degradable material is prepared by taking corn fiber as a main raw material, can be decomposed into water, carbon dioxide and inorganic small molecules by microorganisms in the nature, is high in biodegradation efficiency and does not cause environmental pollution; by using the photocatalyst and the degradation material, the degradation rate of the degradable sealant is high; and the modified montmorillonite and the modified nylon staple fibers are added into the rubber, so that the sealant added with the modified rubber has excellent mechanical properties.

Description

technical field [0001] The invention relates to the field of sealants, in particular to a production process for degradable sealants. Background technique [0002] Sealant is a material used to fill gaps, and liquid sealant is one of the main ones. Neoprene, chlorosulfonated polyethylene, and nitrile rubber have the characteristics of fast drying, cheap price, and easy use, and are widely used in Make a liquid sealant. [0003] However, the mechanical properties of the existing rubber materials are not good enough, so that the prepared sealants cannot meet the sealing effect well. Moreover, with the continuous improvement of social environmental awareness, the treatment of solid waste should be low-carbon, environmentally friendly and harmless However, it is difficult to reuse the rubber sealant after it is used for the first time, and the waste rubber after dismantling cannot be effectively recycled and discarded in the environment. Because it is difficult to degrade natur...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L7/00C08L9/06C08L77/00C08L23/28C08L23/12C08L67/04C08K13/06C08K9/04C08K3/22C08K3/34C08K5/09C08K5/098
CPCC08L7/00C08K2003/2241C08K2003/2296C08L2205/035C08L2205/16C08L2201/06C08L9/06C08L77/00C08L23/286C08L23/12C08L67/04C08K13/06C08K9/04C08K3/22C08K3/346C08K5/09C08K5/098
Inventor 李想马丹丹王洋
Owner 李想
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