Composite soft heat insulating material, preparation method and applications thereof

A thermal insulation material and composite technology, applied in the field of thermal insulation materials, can solve the problems of corroding pipelines, harming the health of workers, and high price, so as to change chemical stability and thermal stability, ensure stable deformation resistance, thermal Small shrinkage and water absorption effect

Inactive Publication Date: 2009-10-07
JINAN UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] (7) Nanoporous silicon insulation material: Most of the pores of the constituent materials are smaller than 50nm, the price is high, and the application is not yet common
[0013] (1) Insulation materials such as perlite, rock wool, and calcium silicate have a high water absorption rate, and lose their thermal insulation effect after containing water, and will corrode pipelines; on-site operation is difficult, and powder and fibers will pollute the body and clothing
[0014] (2) Polystyrene insulation material is easy to soften and deform at high temperature, the safe use temperature is 70°C, the maximum use temperature is 90°C, the fire performance is poor, and it cannot be used in p

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] The weight ratio of the raw material components is as follows: 100 parts of natural rubber or latex (based on dry rubber), 1 part of modified pineapple leaf fiber micropowder, 1 part of kaolin, 0.5 part of sulfur, 1.2 parts of accelerator CZ, and 1 part of antioxidant MB .

[0046] Product preparation steps:

[0047] (1) Preparation of modified pineapple leaf fiber micropowder: add acetic anhydride of 5% fiber quality in pineapple leaf fiber, adopt ball milling method to process 0.5 hour then, then through microwave frequency 2450MHZ, power 300 watts, processing time 20 minutes, obtain Modified pineapple leaf fiber micropowder; the particle size of the obtained micropowder is controlled at 50 nanometers to 30 microns.

[0048] (2) Add the modified pineapple leaf fiber micro-powder, kaolin, sulfur, accelerator CZ and anti-aging agent MB in the above-mentioned raw material components into the concentrated natural latex according to the weight ratio, disperse them in the ...

Embodiment 2

[0050] The weight ratio of the raw material components is as follows: 100 parts of natural rubber or latex (calculated as dry rubber), 10 parts of modified pineapple leaf fiber micropowder, 10 parts of modified ramie fiber, 5 parts of kaolin, 10 parts of talc, 3.3 parts of sulfur, Accelerator CZ 2.3 parts, accelerator PX 2 parts, antioxidant MB 1 part, antioxidant PFC 2 parts.

[0051] Product preparation steps:

[0052] (1) Preparation of modified pineapple leaf fiber micropowder: add the composition (mass ratio 1: 1) of the acetic anhydride and maleic anhydride of 15% pineapple leaf fiber quality in pineapple leaf fiber, adopt colloid milling method to process 24 hours then , and then through a microwave frequency of 2450MHZ, a power of 1600 watts, and a treatment time of 1 minute, the modified pineapple leaf fiber micropowder is obtained; the particle size of the obtained micropowder is controlled at 50 nanometers to 30 microns.

[0053] The preparation of modified ramie f...

Embodiment 3

[0056] The weight ratio of the raw material components is as follows: 100 parts of natural rubber latex (calculated as dry rubber), 10 parts of modified bamboo fiber micropowder, 7 parts of bentonite, 2 parts of sulfur, 3 parts of accelerator ZDC, and 2 parts of antioxidant A.

[0057] Product preparation steps:

[0058] (1) Preparation of modified bamboo fiber micropowder: add the phthalic anhydride of 10% fiber quality in pineapple leaf fiber, then adopt sand milling method to process 12 hours, then through microwave frequency 2450MHZ, power 700 watts, processing time 10 Minutes to obtain modified bamboo fiber micropowder; the particle size of the obtained micropowder is controlled at 50 nanometers to 30 microns.

[0059] (2) Add the modified bamboo fiber micropowder, bentonite, sulfur, accelerator ZDC, anti-aging agent A in the above-mentioned raw material components in the weight ratio to the concentrated natural rubber latex, disperse evenly in the natural rubber latex, a...

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PUM

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Abstract

The invention discloses a composite heat insulating material of natural rubber-plant fiber-clay, a preparation method and applications thereof. The composite heat insulating material comprises the following components by weight portions: 100 portions of natural rubber or latex (according to dry glue), 1 to 20 portions of modified plant fiber micropowder, 1 to 15 portions of clay, 0.5 to 3.3 portions of sulfur, 1.2 to 4.3 portions of accelerator, 1 to 3 portions of antioxidant and the balance of processing assistants. The preparation method comprises the following steps of: using the natural rubber as material, going through the conventional raw material compounding operation, wherein adding the modified plant fiber micropowder, the clay and other ingredients into the natural rubber, preparing into natural rubber composite heat insulating material and products containing the modified plant fiber micropowder and the clay by procedures of foaming, forming, sulfurization and the like. The obtained composite heat insulating material and the products can be applied in the preparation of soft heat insulating material boards, soft heat insulating pipes, soft heat insulating sleeves and the like, and have the characteristics of environmental improvement, high heat insulating efficiency, softness with any folding, excellent performance and the like.

Description

technical field [0001] The invention relates to thermal insulation materials, in particular to environmentally friendly composite flexible thermal insulation materials using natural rubber, plant fiber, clay, etc. application in products. Background technique [0002] my country has become a big energy consumption country, but the problem of low energy utilization has not been solved. At present, my country's energy utilization rate is only 30%, and the energy consumption coefficient is 4-8 times higher than that of developed countries. The energy consumption of building materials and buildings in my country accounts for 47.3% of the total energy consumption. 2-3 times that of the country, plus the consumption of thermal equipment, pipelines, air conditioners, etc. in other sectors such as electric power, chemical industry, petroleum, metallurgy, textile, transportation, etc., the amount is huge. The country's "Medium and Long-term Special Plan for Energy Conservation" stip...

Claims

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Application Information

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IPC IPC(8): C08L7/00C08L7/02C08L97/02
Inventor 张渊明敖宁建未友国
Owner JINAN UNIVERSITY
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