Mixed neoprene sealant

A technology of sealant and neoprene, applied in the field of sealant, can solve the problems of many ingredients and complex production process, and achieve the effect of simple production, easy availability of raw materials, and improved fluidity

Inactive Publication Date: 2014-08-20
TIANCHANG YONG TAI SEALING MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The sealants in the prior art are mostly used in the construction industry and the electronics industry, and have the functions of bonding, sealing,

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0019] Example 1

[0020] A chloroprene hybrid sealant, the raw materials of which by weight include: chloroprene CR244216 parts, natural rubber 12 parts, low-cis butadiene rubber 8 parts, terpene resin 18 parts, xylene 125 parts, and magnesium oxide 6 parts , 75 parts of talc powder, 11 parts of thickener; firstly mix the neoprene rubber, natural rubber and butadiene rubber in the above raw materials and knead it in an open rubber mixer for 20 minutes, cut the material to obtain flakes, and move the flakes to Soak in 80wt% xylene solution based on the weight of total xylene to obtain a glue solution, the immersion time is not less than 84h; put the glue solution into the kneader and stir evenly, add terpene resin and stir for 15min, then add total talc Stir 50wt% of talc by weight, then add the remaining talc and stir evenly, continue to add magnesium oxide and thickener and stir for 20 minutes to obtain a mixed glue; add the remaining xylene to the mixed glue to adjust the cons...

Example Embodiment

[0021] Example 2

[0022] A chloroprene hybrid sealant, the raw materials of which by weight include: 20 parts of neoprene, 15 parts of natural rubber, 10 parts of butadiene rubber, 20 parts of terpene resin, 150 parts of xylene, 9 parts of magnesium oxide, and talc 85 parts, thickener 13 parts; firstly mix the neoprene rubber, natural rubber and butadiene rubber in the above raw materials and knead in an open rubber mixer for 15 minutes. Soak the glue in 83wt% xylene solution based on the weight of toluene, and the immersion time is not less than 72h; put the glue into the kneader and stir evenly, add the terpene resin and stir for 10 minutes, and then add the glue based on the total talc weight. Stir 45wt% talc powder evenly, then add the remaining talc powder and stir evenly, continue to add magnesium oxide and thickener and stir for 15 minutes to obtain a mixed glue; add the remaining xylene to the mixed glue to adjust the consistency of the glue to 0.45L / min to obtain a ne...

Example Embodiment

[0023] Example 3

[0024] A chloroprene hybrid sealant, the raw materials of which by weight include: 14 parts of neoprene, 10 parts of natural rubber, 7 parts of butadiene rubber, 16 parts of terpene resin, 110 parts of xylene, 4 parts of magnesium oxide, and talc 69 parts and 9 parts of diatomaceous earth; firstly mix the neoprene, natural rubber and butadiene rubber in the above raw materials and knead in an open rubber mixer for 23 minutes. Soak the glue in 78wt% xylene solution based on the weight of toluene to obtain a glue solution, the soaking time is not less than 90h; put the glue into the kneader and stir evenly, add the terpene resin and stir for 18 minutes, and then add the glue based on the total talc weight. Stir the 52wt% talc evenly, then add the remaining talc and stir evenly, continue to add magnesium oxide and diatomaceous earth and stir for 23 minutes to obtain a mixed glue; add the remaining xylene to the mixed glue to adjust the consistency of the glue to 0...

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PUM

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Abstract

The invention discloses a mixed neoprene sealant comprising the following raw materials by weight: 12-20 parts of neoprene, 9-15 parts of natural rubber, 6-10 parts of butadiene rubber, 15-20 parts of terpene resin, 110-140 parts of xylene, 3-9 parts of magnesium oxide, 70-80 parts of talcum powder and 8-13 parts of a thickening agent; the neoprene, natural rubber and butadiene rubber are mixed and then put in an open rubber mixing mill for mixing and blanking to obtain a thin sheet, the thin sheet is moved to part of xylene solution for soaking to obtain a rubber solution; the rubber solution is poured into a kneader for mixing evenly, then the terpene resin is added and mixed, part of the talcum powder is added and mixed evenly, then the rest of the talcum powder is added and mixed evenly, and the magnesium oxide and the thickening agent are added and mixed to obtain a mixed rubber solution; the thickness of the mixed rubber solution is adjusted to 0.2-0.45L / min by use of the rest of the xylene to obtain the mixed neoprene sealant. The mixed neoprene sealant ensures the adhesion ability and sealing effect, and has the advantages of easily obtained raw materials and simple production.

Description

technical field [0001] The invention relates to the technical field of sealants, in particular to a chloroprene hybrid sealant. Background technique [0002] Neoprene rubber, also known as chloroprene rubber, is an elastomer produced by α-polymerization of chloroprene as the main raw material, and is formed by homopolymerization or copolymerization of a small amount of other monomers. Chloroprene rubber has high tensile strength, and its rubber products have excellent heat resistance, light resistance, and aging resistance, and its oil resistance is better than natural rubber, styrene-butadiene rubber, and butadiene rubber. Flammability, high chemical stability, good water resistance. [0003] Sealant is a kind of sealing material that deforms with the shape of the sealing surface, is not easy to flow, and has a certain degree of cohesion. It is an adhesive used to fill the gap in the configuration to play a sealing role. Usually, natural resin, synthetic resin, natural ru...

Claims

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Application Information

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IPC IPC(8): C08L11/00C08L7/00C08L9/00C08L45/00C08K3/22C08K3/34
Inventor 刘晓朋
Owner TIANCHANG YONG TAI SEALING MATERIAL
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