Thermal insulation energy-saving environmentally friendly plant fiber cement composite plate and producing method thereof

Abstract

The present invention discloses a thermal insulation energy-saving environmentally friendly plant fiber cement composite plate and a producing method thereof, the thermal insulation energy-saving environmentally friendly plant fiber cement composite plate comprises the following raw materials by weight: 27-37 parts of vegetable fibers, 28-35 parts of Portland cement, 45-50 parts of fly ash, 10-20 parts of abandoned concrete, 1.3-2.7 parts of nano-titanium dioxide, 0.2-0.4 part of calcium fluoride, 0.3-0.6 part of calcium chloride, 0.6-0.9 part of magnesium oxide, 4-7 parts of hollow fiber, 12-15 parts of styrene-acrylic emulsion, 4-7 parts of linseed oil, 9-11 parts of rosin acid polyoxyethylene ester, and proper amount of water; the thermal insulation energy-saving environmentally friendly plant fiber cement composite plate has the advantages of thermal insulation, fire-retardance and the like, the comprehensive utilization level of plant fiber can be improved, and serious damage caused by improper handling of waste resources can be reduced.

Description

technical field [0001] The invention relates to the technical field of building materials, in particular to a heat-insulating, energy-saving and environment-friendly plant fiber cement composite strip and a manufacturing method thereof. Background technique [0002] Since the 1990s, in terms of the choice of living environment, people are no longer satisfied with ordinary housing, but are pursuing building materials with natural characteristics, that is, environment-friendly new materials. Environmentally harmonious building materials must meet the characteristics of heat preservation and energy saving, sound absorption and sound insulation, water resistance and fire prevention, non-toxic and tasteless, light weight, high strength, and safety. Plant fiber cement composite slats are a new type of environmentally harmonious building materials. Fiber refers to annual plant fibers, mainly crop straws such as corn stalks, wheat stalks, cotton stalks, hemp stalks, etc. [0003] T...

AI Technical Summary

Problems solved by technology

[0004] However, the anti-coagulation effect of plant fiber extracts on cement and the alkaline erosion of cement hydrates limit the application of plant fiber cement composite strips. The performance is: the highly alkaline liquid in the pores of the cement substrate has an erosion effect on the plant fibers. effect, thus affecting the durability of the composite slats; plant fibers have a high water absorption rate, which will cause volume changes, resulting in a significant decrease in the bending and tensile strength and elastic modulus of the plant fiber cement composite slats after being damp, causing the composite slats to be twisted Deformation, even cracking; plant fibers depolymerize under the action of microorganisms, resulting in a decrease in the degree of polymerization and a corresponding decrease in their tensile strength