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Method for preparing heat-insulating hollow roof tile from basalt composite short fibers

A technology of short fiber and basalt, which is applied in the field of hollow roof tiles, can solve the problems of affecting the surface quality of products, increasing maintenance costs, and destroying the beauty of houses, etc., and achieves high dimensional stability, long service life, and guaranteed surface gloss.

Inactive Publication Date: 2020-11-06
合肥尚华新材料技术研究院有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] As the quality of life in today's society is getting higher and higher, people's requirements for houses are getting higher and higher, and the requirements for the appearance of houses and heat preservation and heat protection are also getting higher and higher. Traditional houses use heat-insulating hollow roof tiles. The material is often asbestos, glass or ceramics, which are prone to embrittlement and deformation during use, which not only destroys the beauty of the house, but also increases the maintenance cost, and it is even more difficult to meet the requirements of modern people for the quality of life
[0003] Existing heat-insulating hollow roof tiles can be made of resin, and the commonly used resin is polyvinyl chloride or ASA; ASA copolymer can provide the necessary strength and weather resistance for roof tiles, and the performance of roof tiles is generally enhanced by using glass fibers, but The surface of glass fiber reinforced is relatively rough, and its fluidity is poor. When it is applied to the preparation of roof tiles with a large aspect ratio, it is easy to appear the undesirable phenomenon of floating fibers, which affects the surface quality of the product.
[0004] At present, in insulating hollow roof tiles, it is necessary to improve its surface gloss on the basis of maintaining weather resistance, and improve its fluidity to meet the appearance requirements and processing requirements of resin tiles, but the existing technology fails to solve this technical problem

Method used

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  • Method for preparing heat-insulating hollow roof tile from basalt composite short fibers
  • Method for preparing heat-insulating hollow roof tile from basalt composite short fibers

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A method for preparing heat-insulating hollow roof tiles by using basalt composite short fibers, comprising the steps of:

[0024] S1. Mix 10kg basalt short fiber, 3kg coupling agent, and 80kg water, stir at 80°C for 2h, centrifuge, dry at 90°C for 10h, send it into a high-speed mixer, add 40kg of fluidity 3-4g / min, Vicat softening The point is 102-105°C, the notched impact strength is 12-15KJ / m 2 ASA copolymer, 2kg styrene-methyl methacrylate-maleic anhydride polymer, stirred at 200°C for 20min at a high speed, the stirring speed was 800r / min, cooled to room temperature, pulverized, and passed through a 60-mesh sieve to obtain fiber-reinforced ASA polymer thing;

[0025] S2, 60kg fiber-reinforced ASA polymer, 30kg polyamide resin, 5kg ASA-g-GMA resin, 1kg epoxy fatty acid methyl ester, 0.2kg dibutyltin dilaurate, 1kg epoxyacetyllinolenic acid methyl ester, 30kg two Titanium boride, 2kg oxidized polyethylene wax are dropped into a high-speed mixer and stirred for 15mi...

Embodiment 2

[0029] A method for preparing heat-insulating hollow roof tiles by using basalt composite short fibers, comprising the steps of:

[0030] S1. Mix 15kg basalt short fiber, 1kg coupling agent, and 100kg water, stir at 60°C for 5h, centrifuge, dry at 80°C for 20h, send it into a high-speed mixer, add 30kg of fluidity 3-4g / min, Vicat softening The point is 102-105°C, the notched impact strength is 12-15KJ / m 2 ASA copolymer, 4kg styrene-methyl methacrylate-maleic anhydride polymer, stirred at 185°C for 50min at a high speed, the stirring speed was 600r / min, cooled to room temperature, pulverized, and passed through a 60-mesh sieve to obtain fiber-reinforced ASA polymer thing;

[0031] S2, 80kg fiber reinforced ASA polymer, 20kg polyamide resin, 10kg ASA-g-GMA resin, 0.2kg epoxy fatty acid methyl ester, 1kg dibutyltin dilaurate, 0.2kg epoxyacetyllinolenic acid methyl ester, 50kg Calcined pottery clay and 1kg disproportionated rosin were put into a high-speed mixer and stirred for ...

Embodiment 3

[0035] A method for preparing heat-insulating hollow roof tiles by using basalt composite short fibers, comprising the steps of:

[0036] S1. Mix 12kg basalt short fiber, 2.5kg coupling agent, and 85kg water, stir at 75°C for 3h, centrifuge, dry at 88°C for 13h, send it into a high-speed mixer, add 37kg of Vicat with a fluidity of 3-4g / min The softening point is 102-105°C, the notched impact strength is 12-15KJ / m 2 ASA copolymer, 2.5kg styrene-methyl methacrylate-maleic anhydride polymer, stirred at 195°C for 30min at a high speed, with a stirring speed of 750r / min, cooled to room temperature, pulverized, and passed through a 60-mesh sieve to obtain fiber-reinforced ASA polymer;

[0037] S2, 65kg fiber reinforced ASA polymer, 28kg polyamide resin, 6kg ASA-g-GMA resin, 0.8kg epoxy fatty acid methyl ester, 0.4kg dibutyltin dilaurate, 0.8kg epoxyacetyllinolenic acid methyl ester, 25kg fly ash, 10kg polypropylene fiber, 1.7kg hydroxy silicone oil were put into a high-speed mixer...

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Abstract

The invention discloses a method for preparing a heat-insulating hollow roof tile from basalt composite short fibers. The method comprises the following steps: mixing basalt short fibers, a coupling agent and water, centrifuging, drying, adding an ASA copolymer and a styrene-methyl methacrylate-maleic anhydride polymer, stirring at the temperature of 185-200 DEG C for 20-50 minutes, cooling to room temperature, crushing and sieving to obtain a fiber-reinforced ASA polymer; stirring the fiber reinforced ASA polymer, polyamide resin, ASA-g-GMA resin, epoxy fatty acid methyl ester, dibutyltin dilaurate, epoxy acetyl methyl linoleate, a high-strength filler and a plasticizer to obtain a premix; uniformly mixing an antioxidant and an ultraviolet light absorber, adding from a side feeding hole of a double-screw extruder, adding the premix from a main feeding hole of the double-screw extruder, extruding, granulating, molding, demolding, and cooling to room temperature to obtain the heat-insulating hollow roof tile.

Description

technical field [0001] The invention relates to the technical field of hollow roof tiles, in particular to a method for preparing heat-insulating hollow roof tiles by using basalt composite short fibers. Background technique [0002] As the quality of life in today's society is getting higher and higher, people's requirements for houses are getting higher and higher, and the requirements for the appearance of houses and heat preservation and heat protection are also getting higher and higher. Traditional houses use heat-insulating hollow roof tiles. The material is often asbestos, glass or ceramics, which are prone to embrittlement and deformation during use, which not only destroys the beauty of the house, but also increases the maintenance cost, and it is even more difficult to meet the requirements of modern people for the quality of life. [0003] Existing heat-insulating hollow roof tiles can be made of resin, and the commonly used resin is polyvinyl chloride or ASA; AS...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L51/04C08L77/00C08K13/06C08K9/00C08K9/04C08K13/04C08K7/10
CPCC08L51/04C08L2205/035C08L2205/04C08L77/00C08K13/06C08K9/00C08K9/08C08K13/04C08K7/10
Inventor 黄瑛薛永杰
Owner 合肥尚华新材料技术研究院有限责任公司
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