A kind of protective paper and preparation method thereof

A technology of face-protecting paper and wood fiber, which is applied in papermaking, paper, textiles and paper-making, etc., can solve the problems of poor bonding between face-protecting paper and gypsum board, low paper strength, and easy delamination, so as to avoid air bubbles Effects of layering, strength improvement, and air permeability improvement

Active Publication Date: 2019-12-03
江苏源清环保科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention: Aiming at the problem that the existing face protection paper and gypsum board have poor bonding performance, easy to appear delamination, foaming, etc., and the paper strength is low, a face protection paper and gypsum board are provided. its preparation method

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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  • A kind of protective paper and preparation method thereof

Examples

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example 1

[0012] Take 500g of mustard seeds and 2L of water into a beaker, move the beaker into a water bath, control the temperature of the water bath at 40°C, keep warm and heat for 14 hours, take out the mustard seeds and put them in an oven, and dry them at 95°C until the mustard seeds contain water The rate is 8%. Put the dried mustard seeds in a pulverizer and pulverize them for 20 minutes to obtain pulverized products. Put the pulverized materials into an oil press and squeeze out the oil at 120°C to obtain crude mustard oil. Crude mustard seeds The oil was filtered to obtain the filtrate. Take 40mL of the filtrate and 200mL of absolute ethanol and add them to a three-necked flask equipped with a thermometer and a reflux device. Move the three-necked flask into a water bath, control the temperature of the water bath to 85°C, stir and mix for 5 minutes, and then add the three-necked flask to the three-necked flask. Add 3g of tert-butyl hydroperoxide into the flask, stir and react f...

example 2

[0014] Take 500g of mustard seeds and 2L of water into a beaker, move the beaker into a water bath, control the temperature of the water bath at 40°C, keep warm and heat for 14 hours, take out the mustard seeds and put them in an oven, and dry them at 95°C until the mustard seeds contain water The rate is 8%. Put the dried mustard seeds in a pulverizer and pulverize them for 20 minutes to obtain pulverized products. Put the pulverized materials into an oil press and squeeze out the oil at 120°C to obtain crude mustard oil. Crude mustard seeds The oil was filtered to obtain the filtrate. Take 40mL of the filtrate and 200mL of absolute ethanol and add them to a three-necked flask equipped with a thermometer and a reflux device. Move the three-necked flask into a water bath, control the temperature of the water bath to 85°C, stir and mix for 5 minutes, and then add the three-necked flask to the three-necked flask. Add 3g of tert-butyl hydroperoxide into the flask, stir and react f...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Abstract

The invention relates to protective covering paper and a preparation method thereof, belonging to the technical field of building materials. The protective covering paper is prepared from the following raw materials: 80-100 parts of modified wood fibers, 10-15 parts of polypropylene-based isothiocyanate, 5-8 parts of carboxymethyl cellulose, 3-5 parts of shell-lac and 60-70 parts of water. The modified wood fibers are prepared by the following steps: beating needle leaf wood fibers, mixing the pulp with a calcium chloride solution, adding a sodium carbonate solution dropwise, stirring for carrying out reaction, then filtering and washing to obtain the modified wood fibers. The polypropylene-based isothiocyanate is prepared by the following steps: mixing mustard seeds with water, heating the mixture, taking out and drying, crushing, squeezing, and filtering to obtain filtrate; mixing the filtrate with anhydrous ethanol, then adding a catalyst, stirring for carrying out reaction, and distilling. The protective covering paper prepared by the method is better in bonding property with a gypsum board, does not easily have the phenomena of layering and blistering, and is higher in strength.

Description

technical field [0001] The invention relates to a protective paper and a preparation method thereof, belonging to the technical field of building materials. Background technique [0002] Gypsum board is recognized as a green and environmentally friendly lightweight building material. Its production and application have been vigorously developed around the world. At the same time, people have put forward newer and higher requirements for the quality and performance of gypsum board. It has also become one of the important indicators to measure the gypsum board. The so-called gypsum board protective paper is to cover both sides of the gypsum core when producing the gypsum board, and can be firmly bonded with the gypsum core material. The two layers of cardboard that the core acts as protection. The partition wall made of paper-faced gypsum board has the characteristics of light weight, sound insulation, fire prevention, and easy decoration. It is an indispensable new building ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D21H11/20D21H17/54D21H13/10
CPCD21H11/20D21H13/10D21H17/54
Inventor 邱洪荣薛焱璟宋玲
Owner 江苏源清环保科技有限公司
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