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Whisker material modified polyurethane ground-paving material and preparation process thereof

A paving material and polyurethane technology, applied in the field of polyurethane floor paving materials and their preparation, can solve the problems of reducing the dispersibility of nano-montmorillonite in polyurethane, affecting the mechanical properties of polyurethane paving materials, etc., and achieve excellent semiconductor conductivity, Excellent antistatic properties and microwave absorption properties, improving stability and wear resistance

Inactive Publication Date: 2003-10-22
HONGFU LAIYIN SCI & TECH DEV BEIJING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there are also nano-materials to prepare polyurethane elastic materials in China, such as CN1352213A Chinese Invention Patent Specification, which discloses a sports field paving material prepared by polyurethane / nanometer montmorillonite and its preparation method prepared by nano-materials, but due to Nano-scale layered montmorillonite is very easy to agglomerate due to van der Waals force, which greatly reduces the dispersion of nano-montmorillonite in polyurethane, thus affecting the mechanical properties of polyurethane paving materials

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] 1) Preparation of component A: Add 70% of polyether diol with a molecular weight of 2000 based on the total amount of component A into the reaction kettle, stir at 80-100°C, vacuumize and dehydrate for 1-3 hours, Cool to 40-60°C, add 30% diisocyanate, react at 70-90°C for 2-3 hours, vacuumize and degas, cool to room temperature for later use.

[0024] 2) Preparation of component B: take 40% of polyether triol with a molecular weight of 3000 based on the total amount of component B, vacuumize and dehydrate at 95-105°C for 1-3 hours, and add zinc oxide treated with coupling agent Whisker material 3%, ultrasonic treatment for 30 minutes in stirring state, add 3,3'-dichloro-4,4'diaminodiphenylmethane 4.0%, dioctyl phthalate 25%, talc powder 20% , 3% of silicon dioxide powder, 4.0% of iron red and 1% of lead naphthenate, stirred and mixed, heated to 80-95° C., vacuumed, dehumidified for 1-2 hours, cooled to room temperature for later use.

[0025] 3) Preparation of polyuret...

Embodiment 2

[0027] 1) Preparation of component A: Add 40% of polyether diol with a molecular weight of 2000 and 32% of polyether diol with a molecular weight of 1000 based on the total amount of component A into the reaction kettle, at 80-100°C Stir, vacuum dehydrate and degas for 1-3 hours, cool to 40-60°C, add 28% diisocyanate, react at 70-90°C for 2-3 hours, then vacuumize and degas, cool to room temperature for later use.

[0028] 2) Preparation of component B: Based on the total amount of component B, polyoxypropylene-refined castor oil polyol with a molecular weight of 3000 is 34%, vacuum dehydrated at 95-105°C for 1-3 hours, and treated with a coupling agent After 5% of the potassium hexatitanate whisker material was stirred and treated with ultrasonic waves for 40 minutes, 2.5% of 3,3'-dichloro-4,4'diaminodiphenylmethane and dioctyl phthalate were added 18%, kaolin 35%, silica powder 1%, tartrazine-phthalocyanine green 4.0% and lead isooctanoate 0.5%, stir and mix, heat up to 80-9...

Embodiment 3

[0031] 1) Preparation of component A: 34% of polyoxypropylene-refined castor oil polyol with a molecular weight of 2000 and 36% of polyether diol with a molecular weight of 1000 based on the total amount of component A were added to the reaction kettle, and at 80 Stir at -100°C, vacuum dehydrate and degas for 1-3 hours, cool to 40-60°C, add 30% diisocyanate, react at 70-90°C for 2-3 hours, then vacuumize and degas, cool to room temperature for later use .

[0032] 2) Preparation of component B: take 32% polyether triol with a molecular weight of 3000 based on the total amount of component B, dehydrate under vacuum at 95-105°C for 1-3 hours, add calcium sulfate treated with coupling agent Whisker material 5%, after ultrasonic treatment for 40 minutes under stirring, add 3,3'-dichloro-4,4'diaminodiphenylmethane 3.0%, chlorinated paraffin oil 26%, talcum powder 26%, di 3% of silicon oxide powder, 4.0% of iron red and 1% of lead naphthenate are stirred and mixed, heated to 80-95°...

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PUM

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Abstract

The present invention provides a polyurethane floor paving material modified by whisker material and its preparation method. Said method includes the following steps: evacuating polyether dihydric alcohol, dewatering, deaerating, adding diisocyanate and evacuating, deaerating so as to obtain component A of polyurethane elastomer; evacuating polyether trihydric alcohol, dewatering, adding whisker material, 3,3'-dichloro-4,4'-diaminodiphenyl methane, plasticizer, ihorganic filler, iron red or lemon-yellow-phthalocyanine green mixed body and metal carboxylate catalyst, stirring them, mixing and evacuating, eliminating moisture so as to obtain component B or polyurethane elastomer; uninformly mixing the above-mentioned two components according to the ratio of 1:3-1:5.

Description

Technical field [0001] The invention relates to polymer composite materials, in particular to a polyurethane ground pavement material modified with whisker materials and a preparation method thereof. Background technique [0002] Existing polyurethane elastomers are usually made by mixing polyurethane prepolymers (commonly known as component A) and curing agents (commonly known as component B), and then polymerizing them with catalysts. At present, there are also nano-materials to prepare polyurethane elastic materials in China, such as CN1352213A Chinese Invention Patent Specification, which discloses a sports field paving material prepared by polyurethane / nanometer montmorillonite and its preparation method prepared by nano-materials, but due to Nano-scale layered montmorillonite is very easy to agglomerate due to van der Waals force, which greatly reduces the dispersion of nano-montmorillonite in polyurethane, thus affecting the mechanical properties of polyurethane pavin...

Claims

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Application Information

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IPC IPC(8): C08L75/08E04F15/12
Inventor 黄广清宋广清张霞王亚峰
Owner HONGFU LAIYIN SCI & TECH DEV BEIJING
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