A kind of preparation method of biomass-based combined wall
A biomass and combined technology, applied in the direction of building materials, etc., can solve the problems of environmental pollution, waste of resources, low energy utilization rate of straw burning, etc., and achieve the effect of high economic benefits and high tensile strength
Active Publication Date: 2020-08-11
北京禾木之家科技发展有限公司
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Problems solved by technology
At present, most areas rely on straw as fuel, or directly burn it in the field, which not only pollutes the environment, but also causes a serious waste of resources due to the low utilization rate of straw burning energy.
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[0029] The present invention will be further described below in conjunction with accompanying drawing.
[0030] The present invention proposes a preparation method of a biomass-based combined wall, which comprises the following steps:
[0031] Take 75-90 parts by mass of dry lignin, 5-20 parts of PVC resin, and 5 parts of lubricant and mix them into a high-temperature twin-screw thermoplastic extruder for thermoplastic extrusion. A hollow-core wall profile mold is provided to obtain a hollow-core biomass-based thermoplastic wall profile;
[0032] Take 40-50 parts of polyethylene glycol 400, 20-25 parts of glycerol, 25-40 parts of lignin and 0.5-1 part of concentrated sulfuric acid in parts by mass and put them into the reactor for stirring. to 140-160°C, and carry out atmospheric pressure liquefaction at this temperature, and the liquefaction time is 60-90 minutes to obtain liquefaction products of biomass-based polyols; add sodium hydroxide in an amount chemically equivalent...
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Abstract
The invention discloses a preparation method of a biomass base combined-type wall. The preparation method comprises the following steps that a hollow biomass base thermoplastic wall profile is prepared, a biomass base polyurethane rigid foam material is prepared, a solid core biomass base wall profile is prepared, and the biomass base combined-type wall is prepared. According to the provided preparation method of the biomass base combined-type wall, biomass serves as a raw material, lignin after the biomass raw material is subjected to enzymolysis and fermentation separation serves as a raw material for producing a thermoplastic material, the good polymerization property is achieved, and after the lignin, PVC resin and a lubricant are mixed and subjected to thermoplastic extrusion, the obtained biomass base thermoplastic material is made to still have high tensile strength and have the non-water-absorbent property. The lignin serves as the raw material, and is transformed into the biomass base thermoplastic material with the high additional value and the biomass base polyurethane rigid foam plastic, and the high economic benefits are achieved.
Description
technical field [0001] The invention relates to the field of building decoration industry, in particular to a method for preparing a biomass-based combined wall. Background technique [0002] With the development of modern industry and the surge of world population, energy crisis, food crisis and environmental crisis are getting worse day by day. The current world economy is overly dependent on petroleum, coal and other fossil resources, and its non-renewability is causing the gradual depletion of such resources, and the price is rising steadily. The burning of such resources produces a large amount of carbon dioxide, sulfur dioxide and other gases and suspended particles, which has caused climate change. The environment is deteriorating day by day. Finding renewable clean energy to replace them has become the focus of scientific research departments in various countries. Among them, biomass energy has become the most potential energy source because of its advantages such ...
Claims
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IPC IPC(8): C08L97/00E04C2/02C08L27/06C08G18/66C08G18/48C08G18/64C08G18/32
CPCC08G18/3206C08G18/4081C08G18/4833C08G18/6492C08G18/6677C08L97/00E04C2/02C08L27/06
Inventor 生晓东何雨飞李学业
Owner 北京禾木之家科技发展有限公司