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Silicon boron polymer and preparation method therefor and application thereof

A silicon boron polymer and boron compound technology, applied in the field of silicone rubber, can solve the problems of fast reaction and increased viscosity, and achieve the effects of good reproducibility, cheap raw materials, and easy availability of raw materials

Active Publication Date: 2015-12-23
东莞九天量子科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the disadvantages that the viscosity of traditional silicon-boron polymers will be greatly increased at high temperature and need to be produced in a kneader
Using borated polyol ester to replace boric acid in the traditional method effectively solves the problem of too fast reaction between boric acid and hydroxyl silicone oil. By changing the amount of borated polyol ester, silicon boron polymers with different viscosities can be obtained at high temperature. , so that the production can be carried out in a large batch reactor to facilitate the production

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] In a 1000ml four-neck flask equipped with a stirrer, a thermometer and a condenser tube, add 40 parts of boric acid and 24 parts of glycerol by mass fraction, mix and stir at 50°C for half an hour, and then slowly drop 0.05 parts of The catalyst is p-benzenemethanesulfonic acid, heated to 70°C and stirred for 1 hour to obtain a white viscous liquid. The acid value of the product at this time was measured to be 10 mgKOH / l, and the desired borated polyol ester was obtained.

[0026] In a 1000ml four-necked flask equipped with a stirrer, a thermometer and a condenser tube, mix and stir 100 parts of hydroxyl silicone oil and 1 part of white carbon black evenly in terms of mass fraction, wherein the hydroxyl silicone oil is selected to have a hydroxyl-terminated viscosity of 750CP , white carbon black is prepared by gas phase method, the oil absorption value is 100g / g, and the specific surface area is 300m 2 / g, the particle size is 10nm. Add 8 parts of the above-mentioned ...

Embodiment 2

[0029] In a 1000ml four-necked flask equipped with a stirrer, a thermometer and a condenser, add 40 parts of sodium tetraborate and 24 parts of ethylene glycol by mass fraction, mix and stir at 60°C for half an hour, then slowly drop in 0.05 parts of catalyst p-benzenemethanesulfonic acid, heated to 60°C and stirred for 1.5 hours to obtain a white viscous liquid. The acid value of the product at this time was measured to be 20 mgKOH / l, and the desired borated polyol ester was obtained.

[0030] In a 1000ml four-neck flask equipped with a stirrer, a thermometer and a condenser tube, mix and stir 60 parts of hydroxyl silicone oil and 15 parts of white carbon black evenly in terms of mass fraction, wherein the hydroxyl silicone oil is selected to have a hydroxyl-terminated viscosity of 750CP , white carbon black is prepared by precipitation method, the oil absorption value is 200g / g, and the specific surface area is 200m 2 / g, the particle size is 100nm. Add 3 parts of the above...

Embodiment 3

[0033] In a 1000ml four-neck flask equipped with a stirrer, a thermometer and a condenser tube, add 30 parts of ammonium borate and 24 parts of diethylene glycol by mass fraction, mix and stir at 60°C for 1 hour, then slowly Add 0.05 part of the catalyst p-benzenemethanesulfonic acid dropwise, raise the temperature to 70°C and stir for 1 hour to obtain a white viscous liquid. The acid value of the product at this time is measured to be 10 mgKOH / l, and the desired borated polyol ester is obtained.

[0034] In a 1000ml four-necked flask equipped with a stirrer, a thermometer and a condenser tube, mix and stir 60 parts of hydroxyl silicone oil and 0.1 part of white carbon black according to the mass fraction, and the hydroxyl silicone oil is selected from hydroxyl end-capped viscosity of 750CP , white carbon black is prepared by gas phase method, the oil absorption value is 200g / g, and the specific surface area is 400m 2 / g, the particle size is 10nm. Add 20 parts of the above-m...

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Abstract

The invention discloses a silicon boron polymer and a preparation method therefor and an application thereof. The preparation method for the silicon boron polymer comprises two steps: firstly carrying out a reaction between 30-40 parts of a boron-containing compound and 20-30 parts of polyol to prepare a polyol ester; and then carrying out a reaction between 3-20 parts of the boronized polyol ester, 1-10 parts of methylsilicone oil, 60-100 parts of hydroxyl silicone oil, 0.1-15 parts of white carbon black and 0.01-0.5 part of a plasticizer unsaturated fatty acid to obtain the silicon boron polymer. Plasticine made from the synthetic silicon boron polymer has good bounce and stretchability; the elongation at break reaches 1000-2000%; the tensile strength is just 1-2 MPa; and the T type peel strength is just 0.1-1 kN / m. The preparation method disclosed by the invention is simple in process, short in preparation period and strong in operating controllablity; the stability of product performance can be improved; and the energy consumption is reduced, so that large-scale production is further facilitated. The prepared silicon boron polymer can be widely applied to the fields of toys for children, artistic molding, industrial molding and the like.

Description

technical field [0001] The invention relates to the technical field of silicon rubber, in particular to a silicon-boron polymer synthesis and a preparation method for mass production. Background technique [0002] Traditional playdough, or similar kneadable materials are previously known in the art and are used not only for artistic purposes but also for children's toys. Most require certain processing and reaction temperatures to obtain ideal plasticity and material strength. However, these kneadable materials are divided into oily plasticine and water-based plasticine. Oily plasticine is such as polymers or waxes, and water-based plasticine includes flour, PVA, etc. Oily plasticine has good plasticity and Reusability, while water-based plasticine has the characteristics of dry molding and light weight. But both lack good bounce and stretch. [0003] In addition to the advantages of plasticity, plasticine also needs to have excellent bounce, dryness without being too sti...

Claims

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Application Information

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IPC IPC(8): C08G77/398
Inventor 柯文皓廖显忠徐伯岳
Owner 东莞九天量子科技有限公司
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