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Method for preparing coating from biomass, coating and sizing material

A biomass and biomass powder technology, applied in lignin coatings, paper coatings, fire retardant coatings, etc., can solve the problems of serious chemical consumption and cumbersome preparation process, and achieve simple methods, good coating performance and high barrier properties. Effect

Active Publication Date: 2020-12-08
QILU UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the biological substrate used in the above patent documents is a post-processing product, that is, the wood raw material needs to be chemically pretreated to separate the cellulose and lignin before it can be used, and the preparation process is cumbersome and the consumption of chemicals is serious.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] Get 5.5kg of poplar wood powder with a diameter of 1mm, 0.05kg of 1,1,3,3-tetramethylguanidine, 43kg of ethylene glycol, and use a double planetary ball mill for 8 hours at room temperature (turn for 5 minutes, stop for 5 minutes), The rotating speed is 500rmp, and then stand at room temperature for 4 hours. Add 1.0kg of thoroughly gelatinized starch, 0.05kg of sodium hydroxymethylcellulose, 0.02kg of calcium stearate lubricant, 0.03kg of tributyl phosphate foam inhibitor, and finally add water to make the solid content of the material 30%, stir to form Uniform and stable paper size with a viscosity of 28mPa·s (measured at 50°C and 100rpm). Use a membrane sizing machine for paper sizing, the speed is 800min / min, and the amount of sizing is 8.0g / m 2 , the drying temperature is 110°C and the drying time is 5min. Finally, it is calendered with a calender, the linear pressure is 120N, the calendering speed is 500m / min, and the calendering temperature is 170°C.

[0048] T...

Embodiment 2

[0051] 30kg of wood powder, 0.5kg of 1,1,3,3-tetramethylguanidine, 140kg of ethylene glycol, ball milled with a double planetary ball mill for 8 hours at room temperature (turning for 5 minutes, stopping for 5 minutes) at a speed of 500rmp, and then standing at room temperature Run up 4h. Add 50kg of china clay, 10kg of calcium carbonate, 5kg of thoroughly gelatinized starch, 8kg of styrene-butadiene latex, 1kg of sodium hydroxymethyl cellulose, 0.2kg of calcium stearate lubricant, 0.3kg of tributyl phosphate antifoam agent, and finally add water to make The solid content of the material is 60%, and it is stirred to form a uniform and stable coating with a pH of 8.2 and a viscosity of 1342mPa·S. The front and back sides are coated with a doctor blade coating method at a quantitative rate of 36g / m 2 On the original paper, the speed is 1600m / s, and the double-sided coating amount is 20g / m 2 . After coating, the smoothness increased from 35s to 361s, the whiteness increased fr...

Embodiment 3

[0053] Take 50kg of pine wood powder with a diameter of 1mm, add 250kg of ethylene glycol and 0.4kg of slaked lime, and use a double planetary ball mill for 8 hours at room temperature (rotate for 5 minutes, stop for 5 minutes), and the speed is 500rmp. After standing still for 2 hours, add 6kg calcium carbonate, 8kg antimony oxide, 0.5kg gypsum, 2kg hydroxymethyl cellulose, 1.0kg melamine resin, and finally add water to make the solid content of the material 50%, stir evenly to form a uniform and stable coating , the coating is sprayed on the interior and exterior walls of buildings to obtain an excellent fireproof coating.

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Abstract

The invention relates to a method for preparing a coating from biomass, the coating and a sizing material, and belongs to the field of biomass refining. The method for preparing the coating comprisesthe following steps: adding a certain amount of ethylene glycol and alkali into the biomass powder, uniformly mixing the components and carrying out ball milling in a ball mill to obtain the uniform and stable coating with favorable coating properties. The coating can be used as a paper coating, can also be used for architectural decoration, is completely composed of biomass, belongs to an environment-friendly material, and has very good resource utilization benefits and environmental benefits.

Description

technical field [0001] The invention discloses a method for directly using biomass to prepare paint, paint and glue, and belongs to the field of biomass refining. Background technique [0002] Biomass refining refers to the collection of technologies and equipment for converting biomass into various chemicals, fuels and bio-based materials by developing new chemical, biological and mechanical means. Traditional coatings are mostly made from petroleum-based non-renewable resources such as olefins, polyurethanes and polyesters. However, at present, petroleum resources are scarce, and it is difficult to degrade in the natural environment, which eventually leads to serious white pollution. As human beings pay more and more attention to the environment and energy, bio-based coatings have gradually attracted people's attention. Bio-based coatings are derived from nature, have low toxicity, large amount, good biocompatibility and biodegradability, and can be widely used in constr...

Claims

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Application Information

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IPC IPC(8): D21H19/14D21H19/34D21H19/20D21H21/14C09D197/02C09D7/61C09D7/63C09D7/65C09D5/18
CPCD21H19/14D21H19/34D21H19/20D21H21/14C09D197/02C09D7/61C09D7/63C09D7/65C09D5/18C08L2205/03C08L2201/02C08K2003/265C08K2003/3045C08K2003/2241C08L2201/08C08L1/284C08L61/28C08K13/02C08K3/26C08K3/34C08K5/521C08K5/053C08K3/2279C08K3/30C08L61/24C08K3/22C08K3/36
Inventor 田国钰周浩王兆江
Owner QILU UNIV OF TECH
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