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Inorganic composite plate and preparation and use thereof

An inorganic composite and plate technology, applied in wood treatment, impregnated wood, manufacturing tools, etc., can solve the problems of floor performance limitations, increased costs, and unfavorable environmental protection, etc., to achieve improved mechanical properties, uniform distribution of powder particles, and reduced quality Effect

Inactive Publication Date: 2008-10-08
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the bonding force between the synthetic fibers and the wood chips prevents the fibers from being fully utilized, so the performance of the bottom plate is greatly limited, and their amount is limited by the International Table Tennis Federation and the international standards for table tennis rackets: Natural wood should account for 85% of the bottom plate, and the total thickness of synthetic fibers should not exceed 15% of the total thickness and 0.35mm
And the above improvements are not conducive to environmental protection, but also increase the cost
[0003] It is also proposed to transform the structure of the table tennis racket base plate. For example, someone proposes to use the slab of honeycomb composite structure to make the table tennis racket base plate, and someone proposes a bridge pier type table tennis racket base plate, etc. These methods make the racket lighter. , the dredging of the airflow is also very good, but the feeling is not strong enough, and it is not very easy to adjust the defense and offense

Method used

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  • Inorganic composite plate and preparation and use thereof
  • Inorganic composite plate and preparation and use thereof
  • Inorganic composite plate and preparation and use thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Use basswood as raw material to make composite panels: The first step: Take 49.69 grams of solid NaOH and 14.91 grams of solid Na 2 SO 3 Mix and add water to prepare 1632mL alkaline cooking liquor; take 4 pieces of linden wood with a total dry mass of 496.87g and a volume of 320mm×170mm×5mm, and put them in the cooking liquor at 120℃ and cook for 3 hours; the second step : Put the boiled linden wood pieces in clean water and fully soak them at room temperature for 48 hours; the third step: vacuum-dry the soaked linden wood pieces at 90℃ to a moisture content of 12%; the fourth step : Dilute the above silica sol solution into a silica sol solution with a mass percentage concentration of 12%, take out 1632 mL, add 6.55 g of solid penetrant sodium dodecylbenzene sulfonate, so that the solid penetrant sodium dodecylbenzene sulfonate is in The mass percentage concentration in the silica sol solution is 0.4%; the fifth step: immerse the dried basswood monolith in the silica sol s...

Embodiment 2

[0031] Use basswood as raw material to make composite boards: The first step: take 39.74 grams of solid NaOH and 9.94 grams of solid Na 2 SO 3 Mix and add water to prepare 2176mL alkaline cooking liquor; take 4 pieces of linden wood with a total dry mass of 496.87g and a volume of 320mm×170mm×5mm, and put them in the cooking liquor at 130℃ and cook for 1.5 hours; the second step : Put the boiled linden wood pieces in clean water and fully soak them at room temperature for 36 hours; the third step: vacuum-dry the soaked linden wood pieces at 80°C to a moisture content of 15%; the fourth step : Dilute the above silica sol solution into a silica sol solution with a concentration of 10% by mass, take out 2176 mL, add 13.13 grams of solid penetrant sodium dodecyl benzene sulfonate, so that the solid penetrant sodium dodecyl benzene sulfonate is in The mass percentage concentration in the silica sol solution is 0.6%; the fifth step: immerse the dried basswood monolith in the silica sol ...

Embodiment 3

[0033] Use basswood as raw material to make composite panels: The first step: Take 44.72 grams of solid NaOH and 12.42 grams of solid Na 2 SO 3Mix and add water to prepare 1959mL alkaline cooking liquor; take 4 pieces of linden wood with a total dry mass of 496.87g and a volume of 320mm×170mm×5mm, and put them in the cooking liquor at 100℃ and cook for 2.5 hours; the second step : Put the boiled linden wood pieces in clean water and fully soak them at room temperature for 24 hours; the third step: vacuum-dry the soaked linden wood pieces at 80℃ to a moisture content of 10%; the fourth step : Dilute the above silica sol solution into a silica sol solution with a concentration of 20% by mass, take out 1959 mL, add 11.82 grams of solid penetrant sodium dodecyl benzene sulfonate to make the solid penetrant sodium dodecyl benzene sulfonate in The mass percentage concentration in the silica sol solution is 0.5%; the fifth step: immerse the dried basswood monolith in the silica sol solut...

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Abstract

The invention provides a method for preparing inorganic composite plates. The invention includes the steps that: the plates are put into alkaline cooking liquor with the temperature ranging from 100 to 130 DEG C and taken out after being steamed and cooked for 1.5 to 3 hours; the processed plates are put into clear water for an immersion lasting for 24 to 48 hours at room temperature and dried in vacuum to reach the water content ranging from 10 percent to 15 percent so as to obtain the delignification plates; the delignification plates are then put into silicasol solution with a quality percentage concentration ranging from 10 percent to 20 percent for an immersion lasting for 20 to 26 hours and takes out to rest for 20 to 26 hours; the process is repeated for 3 to 5 times and finally the delignification plates are dried in vacuum at the temperature ranging from 60 to 110 DEG C till the water content of plates reaches 10 to 15 percent. The inorganic composite plates prepared according to the preparation method can be used for making bottom plates of table tennis bats which have the advantages of adjustable service performance, stable ball control, good rebound force, etc.

Description

Technical field [0001] The invention relates to an inorganic composite board, a preparation method thereof, and a table tennis racket bottom board. Background technique [0002] The general table tennis racket bottom plate is glued by several layers of wood veneer. The type and thickness of the veneer can be glued into the table tennis racket bottom plate with different properties, which determines its elasticity, ball speed, rotation, control, unit weight, and thickness. And other performance indicators are different. Since October 2000, table tennis has ushered in the era of the big ball. The big ball has obvious changes in speed, elasticity, rotation, volume, weight, etc., resulting in a sharp decrease in the running speed and rotation speed of the table tennis. The surface area of ​​the ball in contact with the racket becomes larger, resulting in a decrease in elasticity. In response to these problems, various manufacturers have also made corresponding adjustments to the bott...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B27K5/04B27K3/20B27K3/16A63B59/04A63B59/42A63B102/08
CPCA63B59/04A63B2209/00A63B2102/16A63B59/40
Inventor 卢原秋谢平波宗伟马德煊李竟先
Owner SOUTH CHINA UNIV OF TECH
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