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Method for preparing organosilicon sealant for automobiles

A silicone and sealant technology, applied in the field of sealants, can solve the problems of sealant damage, high elongation, small elastic modulus, etc., and achieve the effects of enhanced mechanical strength, improved sealing performance, and long sealing time.

Inactive Publication Date: 2019-03-29
DONGZHI OASIS ENVIRONMENTAL PROTECTION CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Sealant is a commonly used rubber product in sealing devices. Due to its advantages of very small elastic modulus, high elongation and air resistance, it is widely used for installation on various mechanical equipment. Due to the harsh use environment, such as Affected by low temperature, etc., so that the sealant is damaged

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Embodiment 1: the preparation method of organosilicon sealant for automobile, specifically comprises the following contents:

[0017] (1) Weigh raw materials: 55 parts of silicone resin, 22 parts of acrylic emulsion, 6 parts of polyvinyl alcohol, 3 parts of sodium metaaluminate, 11 parts of glass fiber, 8 parts of butyl acrylate, 22 parts of nano-calcium carbonate, accelerator -3.5 parts of D, 6 parts of hexadecylamine, 8 parts of sodium lauryl sulfate and 110 parts of deionized water;

[0018] (2) Add appropriate amount of deionized water to the glass fiber first, grind for 35 minutes, and form a slurry, then add 3.8% cocoic acid monoethanolamide and 0.3% zinc oxide therein, heat to 60 ° C, stir and react for 25 minutes, and then Filter and take the filter residue, dry it at 100°C, and set it aside;

[0019] (3) Weigh silicone resin, acrylic acid emulsion and deionized water, pour it into the reaction kettle, stir and mix, the stirring rate is 600r / min, slowly add the...

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Abstract

The invention discloses a method for preparing an organosilicon sealant for automobiles. The organosilicon sealant is mainly prepared through mixing 50-60 parts of silicone resin, 20-25 parts of acrylic emulsion, 5-8 parts of polyvinyl alcohol, 2-4 parts of sodium metaaluminate, 10-12 parts of glass fibers, 6-9 parts of butyl acrylate, 20-25 parts of nano calcium carbonate, 3-4 parts of accelerant-D, 5-7 parts of cetylamine, 7-10 parts of sodium lauryl sulfate and 100-120 parts of deionized water. According to the organosilicon sealant prepared by the method, the silicone resin serves as a base material, and characteristics such as wear resistance, corrosion resistance and strength of the rubber are effectively enhanced by the glass fibers and the nano calcium carbonate; under the action of joint cooperation of all the ingredients, the sealant prepared by the method has the advantages that the mechanical strength is enhanced obviously, the frictional resistance of sealing is low, the lubricating effect is good, and the sealing performance of the sealant is greatly improved; and the sealant prepared by the method is long in sealing time and good in insulating property.

Description

technical field [0001] The invention relates to the field of sealant, in particular to a preparation method of organosilicon sealant for automobiles. Background technique [0002] 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. Dry or non-dry viscous substances such as synthetic rubber and asphalt are used as base materials, combined with inert fillers such as talcum powder, titanium dioxide, clay, carbon black and asbestos, and then added with solvents, plasticizers, curing agents, accelerators, etc. Made with additives such as additives. The sealants in the prior art are mostly used in the construction industry and the electronic industry, and have functions such as bonding, sealing, leak prevention, waterproof, vibration prevention, sound insulation, and heat insulation. [0003] Sealant ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J4/02C09J4/06C09J11/08C09J11/04C09J11/06
CPCC09J4/06C09J11/04C09J11/06C09J11/08
Inventor 陈建宇
Owner DONGZHI OASIS ENVIRONMENTAL PROTECTION CHEM
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