The invention relates to a polymer modified asphalt waterproof roll and a production method thereof. The waterproof roll is a five-layer structure, and specifically includes, from top to bottom successively, an upper surface isolation layer, an upper polymer modified asphalt layer, a matrix layer, a lower polymer modified asphalt layer and a lower surface isolation layer. The upper polymer modified asphalt layer and the lower polymer modified asphalt layer are prepared from modified asphalt. According to the invention, through modification of asphalt with a polymer modifier, gamma-methacryloxypropyltrimethoxysilane, phenolated lignin, a tackifier and other substances, the obtained modified asphalt has stable properties, and the added modified nano calcium carbonate has high dispersibility,thus effectively improving the storage stability of the modified asphalt system. The waterproof roll prepared from the modified asphalt has improved tearing strength, cohesiveness, water resistance,aging resistance and the like, has high elongation at break, and has improved service life.

Polymer modified asphalt waterproof roll and production method thereof

The invention relates to an epoxy resin adhesive synthesized by alkali lignin through in-situ autocatalysis A preparation method comprises the following steps: step I, pickling a biomass raw material with sulfuric acid, and filtering and drying the pickled biomass raw material to obtain filter residues; step II, carrying out reaction on alkali liquor with the filter residues, and filtering a reactant to obtain an alkali lignin stock solution; step III, directly adding a phenolic compound in the alkali lignin stock solution, and carrying out in-situ phenolate modification; step IV, directly adding epoxy chloropropane or a derivative thereof in a phenolate lignin solution, and carrying out molecule in-situ polymerization; and step V, rapidly adding cold deionized water in reaction liquid, and brewing obtained precipitates with hot deionized water to obtain final residual viscous substances as the lignin modified epoxy resin adhesive Processes of alkali lignin molecule extraction, in-situ modification and epoxy resin adhesive synthesis, involved in the invention, are continuous, and the efficiency is greatly improved Meanwhile, in the alkali lignin in-situ modification and epoxy resin synthesis processes, a catalyst does not need to be added additionally, and autocatalytic reaction is realized

Epoxy resin adhesive synthesized by alkali lignin through in-situ autocatalysis and preparation method of epoxy resin adhesive

The invention relates to a modified asphalt waterproof coiled material with root penetration resistance. The waterproof coiled material has a five-layer structure, and the waterproof coiled material is sequentially provided with an upper surface isolation layer, an upper modified asphalt layer, a base material layer, a lower modified asphalt layer and a lower surface isolation layer from the top to the bottom; and the upper modified asphalt layer and the lower modified asphalt layer are separately prepared from a modified asphalt. The modified asphalt waterproof coiled material with root penetration resistance produced by the invention has greatly improved performance such as root penetration resistance, tear resistant strength, binding performance, water resistance and aging resistance, higher elongation at break, and a simple production process, and overcomes the disadvantages of tedious production, poor binding performance and the like of a traditional waterproof coiled material. According to the invention, the waterproof coiled material produced by the method is used in building, the binding strength of the waterproof coiled material and the base surface of a building is large,the waterproof and root penetration resistant effects are good, the phenomena of water seepage and water leakage of a waterproof coiled material are effectively prevented, and the product has dual functions of waterproofing and preventing plant root penetration.

Modified asphalt waterproof coiled material with root penetration resistance and production method of coiled material

The invention relates to a polyurethane modified asphalt waterproof roll. The polyurethane modified asphalt waterproof roll is of a five-layer structure which comprises, from top to bottom, a top isolating layer, an upper modified asphalt layer, a padding layer, a lower modified asphalt layer and a bottom isolating layer, wherein the upper modified asphalt layer and the lower modified asphalt layer are prepared from modified asphalt. The polyurethane modified asphalt waterproof roll is greatly improved in tearing strength, adhesion, water resistance, aging resistance and the like, has high elongation at break, and overcomes the disadvantages of tedious preparation, weak adhesion and the like of conventional waterproof rolls. A production method for the polyurethane modified asphalt waterproof roll is simple. As the polyurethane modified asphalt waterproof roll is applied to a building, a contact surface of the polyurethane modified asphalt waterproof roll and the base surface of the building has good bonding strength and waterproof effect, so the waterproof roll is effectively prevented from water seepage and water leakage.

Polyurethane modified asphalt waterproof roll and production method thereof

The invention relates to a flame-retardant type modified bituminous waterproof sheet material. The waterproof sheet material is of a five-layer type structure which sequentially comprises an upper surface isolating layer, an upper modified bitumen layer, a padding layer, a lower modified bitumen layer and a lower surface isolating layer from top to bottom. The upper modified bitumen layer and thelower modified bitumen layer are made of modified bitumen. According to the produced and obtained flame-retardant type modified bituminous waterproof sheet material, properties such as flame-retardantperformance, the tearing strength, the cohesive property, the water resisting property and ageing resistance are all improved greatly, the elongation at break is high, the manufacturing technology issimple, and the defects that in the prior art, manufacturing of waterproof sheet materials is cumbersome, and the cohesive property is poor are overcome. The prepared and obtained flame-retardant type modified bituminous waterproof sheet material is used for a building, the bonding strength between the waterproof sheet material and a building base surface is high, and the waterproof effect between the waterproof sheet material and the building base surface is good, and phenomena of water seepage and water leakage of the waterproof sheet material are effectively prevented.

Flame-retardant type modified bituminous waterproof sheet material and production method thereof

The invention discloses a preparation method of a phenolated lignin amine cationic emulsifier. The method comprises the following steps: heating an alkaline liquid of alkali lignin and a proper amount of phenol to 70-100 DEG C and reacting for 1-3h, then, acidizing a reaction liquid to realize pH=2.5 with 1 mol/L hydrochloric acid, performing suction filtration, washing with hot water at 80-100 DEG C until free phenol disappears completely, thus obtaining phenolated lignin; dissolving the phenolated lignin in a NaOH liquid with mass fraction of 10% and regulating pH to 10.5-12, then, further adding a mixed liquid of a certain amount of small molecule polyamine and 37% formaldehyde, reacting for 3-5h at 90 DEG C, then, introducing amine methyl hydrophilic groups into the phenolated lignin, thereby obtaining the cationic emulsifier which has positive electricity under the condition of diluted acid. In comparison with the cationic emulsifier modified by the lignin which is not phenolated, the emulsifier provided by the invention has higher surface activity, stronger Zeta potential and stronger emulsion stability, and can be widely used in the fields of road engineering, building waterproofing, material corrosion prevention, water conservancy construction, and so on.

Preparation method of phenolated lignin amine cationic emulsifier

The invention provides a method for one-step hydration synthesis of terpilenol by catalyzing turpentine through carbon-based solid acid. The method is characterized in that the turpentine is used as the raw material, isopropyl alcohol or butyl alcohol or isobutyl alcohol is used as the solvent, and the terpilenol is formed by means of one-step hydration synthesis through the turpentine under the catalytic action of a carbon-based solid acid catalyst. The carbon-based solid acid is prepared through a lignin gel method and has the advantages of developed micropores and mesopores, high catalytic activity, easy separation, good thermostability, repeatable utilization, easy regeneration, low preparation cost and the like; since the carbon-based solid acid is used for catalyzing the turpentine to form the terpilenol by means of one-step hydration synthesis, the conversion rate of the turpentine is up to 95-98 percent, and the yield of the terpilenol is 35-42 percent; besides, in the production process, no liquid waste acid or waste water is produced, pollution to the environment is greatly relieved, and the requirement for green chemistry is met.

Method for one-step hydration synthesis of terpilenol by catalyzing turpentine through carbon-based solid acid

The invention provides a method for preparing lignin carbon-based solid acid. The method is characterized by comprising the following steps: by taking alkali lignin as a main raw material, stirring and dissolving the alkali lignin, alkali and water at room temperature according to a certain mass ratio, adding epoxy chloropropane of a certain mass, stirring for a certain time, obtaining lignin gel at a proper temperature, soaking the gel in an aqueous solution of hydrochloric acid, washing to be neutral, performing vacuum drying, thereby obtaining the dried lignin gel; and carbonizing the dried gel at a certain temperature, sulfonating the gel by using a sulfonating agent, washing to be neutral after sulfonating, thereby obtaining the carbon-based solid acid; or directly sulfonating the dried gel by using the sulfonating agent, thereby obtaining the carbon-based solid acid. The preparation process is simple, the raw materials are cheap and readily available, and resource utilization of industrial waste residues is realized; and the prepared carbon-based solid acid is developed in a porous structure, high in acid amount and high in stability and reusability.

Cao Song

Papers

Preparation method of phenolated lignin amine cationic emulsifier

Method for one-step hydration synthesis of terpilenol by catalyzing turpentine through carbon-based solid acid

Method for preparing lignin carbon-based solid acid