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A kind of elastomer material modified by amino silicone oil and preparation method thereof

An elastomer material and amino silicone oil technology, applied in polyurea/polyurethane coatings, coatings, etc., can solve the problem of inability to improve various properties of polyurea materials, poor compatibility of polyurea materials, and poor water and water resistance performance and other problems, to achieve the effect of mild conditions, improved wear resistance, and improved compactness

Active Publication Date: 2021-09-24
ZHEJIANG YUANRONG TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, in the current modification method, the compatibility between the filler and the polyurea material is poor, the binding force of the filler is weak, and it is easy to detach from the polyurea material, resulting in poor wear resistance, and thus resulting in a large number of pores in the polyurea material body. Poor performance of water and water resistance, etc.
Therefore, the prior art cannot take into account the various performances of polyurea materials

Method used

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  • A kind of elastomer material modified by amino silicone oil and preparation method thereof
  • A kind of elastomer material modified by amino silicone oil and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0053] The elastomer material in this embodiment includes A component and R component.

[0054] Component A includes an isocyanate prepolymer obtained by reacting polyether polyol with methyl isocyanate, p-phenylene diisocyanate, and triphenylmethane isocyanate, and the -NCO content of the isocyanate prepolymer is 25%;

[0055] The R component includes the following components in parts by weight: 12 parts of polyether triamine, 36 parts of polyether diamine, 3 parts of diethylmethylenediamine, 5 parts of polysulfide rubber, surface pretreated nano-dioxide 5 parts of silicon, 5 parts of amino silicone oil.

[0056] The preparation method of elastomeric material comprises the steps:

[0057] (1) Mix 30g of polyether triol and 100g of polyether diol evenly, heat to 100-120°C for dehydration for 2-3 hours, then lower the temperature to 70°C, add 1g of methyl isocyanate, 135g of p-phenylene diisocyanate, three 35g of phenylmethane isocyanate, heat preservation reaction for 2-3h, ...

Embodiment 2

[0062] This embodiment refers to the elastomeric material and its preparation method of Example 1, the only difference being that the -NCO content of the cyanate ester prepolymer of component A is 22%;

[0063] The preparation method of component A includes: mixing 30g of polyether triol and 100g of polyether diol evenly, heating to 100-120°C for dehydration for 2-3 hours, then cooling down to 70°C, adding 0.8g of methyl isocyanate, 110g of phenylene diisocyanate, 30g of triphenylmethane isocyanate, heat preservation reaction for 2-3h, defoaming and cooling down to obtain component A with -NCO content of 22±1%.

Embodiment 3

[0065] This embodiment refers to the elastomer material and its preparation method of Example 1, the only difference being that the -NCO content of the cyanate ester prepolymer of component A is 30%;

[0066] The preparation method of component A includes: mixing 30g of polyether triol and 100g of polyether diol evenly, heating to 100-120°C for dehydration for 2-3 hours, then cooling down to 70°C, adding 1.5g of methyl isocyanate, 200g of phenylene diisocyanate, 55g of triphenylmethane isocyanate, heat preservation reaction for 2-3h, defoaming and cooling down to obtain component A with -NCO content of 30±1%.

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Abstract

The invention relates to the technical field of polyurea materials, in particular to an amino silicone oil modified elastomer material and a preparation method thereof. Amino silicone oil-modified elastomer material, including A component and R component; A component includes isocyanate prepolymer obtained by reacting polyol and isocyanate, and the -NCO content of the isocyanate prepolymer is 22-30%; The R component includes the following components in parts by weight: 45-60 parts of polyetheramine, 1-6 parts of liquid amine chain extender, 1-10 parts of polysulfide rubber, 2-8 parts of nano silicon dioxide, amino 3-8 parts of silicone oil. The elastomer material of the present invention ensures the elasticity of the polymer while improving the mechanical properties. Moreover, the elongation rate, wear resistance and water-proof and water-proof performance of the polyurea material can be improved at the same time.

Description

technical field [0001] The invention relates to the technical field of polyurea materials, in particular to an amino silicone oil modified elastomer material and a preparation method thereof. Background technique [0002] Polyurea material has high impact and wear resistance, good anti-seepage effect, corrosion resistance and good comprehensive mechanical properties, and has been widely used in national defense, industrial and civil construction, and water conservancy and hydropower projects. In order to further improve the performance of the polyurea material, in the prior art, the polyurea material is modified by adding fillers and the like in a simple physical blending manner. [0003] However, in the current modification method, the compatibility between the filler and the polyurea material is poor, the binding force of the filler is weak, and it is easy to detach from the polyurea material, resulting in poor wear resistance, and thus resulting in a large number of pores...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D175/08C09D183/08C09D181/04C09D7/62C09D7/65C08G18/76C08G18/71C08G18/50C08G18/48C08G18/32
CPCC08G18/4825C08G18/4837C08G18/5024C08G18/10C08G18/4812C08G18/71C08G18/7614C08G18/7664C08L75/04C08L2205/05C08L2310/00C08L75/02C08G18/48C08G18/61C08K9/06C08L21/00C08L2205/03C08G18/4829C08G18/3819C08G18/52C08G18/3895C08G18/6685
Inventor 俞松茂肖吕明俞燕刚
Owner ZHEJIANG YUANRONG TECH
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