CN105295608A - Sound-proof thermal-insulation wallpaper containing modified acrylic resin emulsion coating - Google Patents

Abstract

The invention discloses a sound-proof thermal-insulation wallpaper containing a modified acrylic resin emulsion coating. In a thick coating liquid used by the wallpaper, an resin binding agent adopts an aqueous acrylic resin emulsion modified through copolymerization with cellulose acetate. The emulsion is stable in stability and is free of slowly-volatile toxic compounds, such as formaldehyde. The coating formed by the emulsion is smooth and elastic, and has functions of water resistance, stain resistance, and antibiosis. In comparison with conventional PVC paste, the plasticizing temperature of the coating is reduced to as low as 120-150 DEG C. Polylactic acid porous fiber containing glass beads can be uniformly dispersed in the emulsion; an efficient sound-proof thermal-insulation effect is achieved; and use property of the coating is improved. The novel wallpaper is smooth to touch, is light, air-permeable, fire-resistant, and safe, and has extremely high application value.

Description

A kind of sound-insulating type wallpaper containing modified acrylic resin emulsion coating

Technical field

The present invention relates to wallpaper technical field, particularly relate to a kind of sound-insulating type wallpaper containing modified acrylic resin emulsion coating.

Background technology

Wallpaper has another name called wallpaper, because of it, to have color various, pattern enriches, the advantage such as luxurious style, safety and environmental protection, easy construction, affordable is applied more and more extensive in house ornamentation, common wallpaper is greatly using the material such as pure paper, non-woven fabrics as base material, at its surface-coated resin slurry, make through operations such as high temperature plasticizing, printing embossing.

Modal coating paste is mainly made up of polyvinyl chloride resin and filler in the market, although this coated material has the advantages such as attractive and durable waterproof, but its poor air permeability, and containing organic solvent, long-time use can pollute room air, along with the raising of people's environmental consciousness, require also more and more higher to the feature of environmental protection of wallpaper, this needs to use new coated material to replace polyvinyl chloride resin undoubtedly.In recent years market emerges the water-base resin coated material of a collection of environmental protection, although this kind of material is not containing volatile organic solvent, but its ventilation property, plasticization temperature, additional functional and with the stickiness of base material etc. in still Shortcomings.

Summary of the invention

The object of the invention is exactly the defect in order to make up prior art, provides a kind of sound-insulating type wallpaper containing modified acrylic resin emulsion coating.

The present invention is achieved by the following technical solutions:

A kind of sound-insulating type wallpaper containing modified acrylic resin emulsion coating, this wallpaper is made up after super-dry, plasticizing, embossing of non-woven fabrics base material and the coating paste being coated on substrate surface, and described coating paste is made up of the raw material of following weight part: the aqueous polyethylene wax emulsion 3-5 that the hollow glass micropearl 3-4 that composite water soluble Emulsion acrylic resin 80-100, polylactic acid slice 8-10, granularity are 10-20 μm, solid content are 30-35%, vinyl two stearic amide 0.1-0.2, silane coupling agent kh5500.1-0.2.

Described coating paste preparation method is:

(1) hollow glass micropearl-polylactic acid porous fiber preparation: first polylactic acid slice, hollow glass micropearl, the two stearic amide of vinyl, silane coupling agent kh550 are carried out melt-spinning after being uniformly mixed, making length is 80-100 μm, and diameter is the porous staple fibre of 30-50 μm;

(2) hollow glass micropearl-polylactic acid porous fiber is dropped in composite water soluble Emulsion acrylic resin, add other leftover materials after being uniformly mixed 30-50min, strong stirring mixing 4-5h, leave standstill after placing 30-40min subsequently and get final product.

Described composite water soluble Emulsion acrylic resin is made up of the raw material of following weight part: nano silicon 0.5-0.8, cellulose acetate 4-5, N, dinethylformamide 12-15, butyl acrylate 18-25, methyl methacrylate 15-20, vinylformic acid 10-15, ammonium persulphate 5-8, emulsifier op-10 2-3, sodium lauryl sulphate 1-3, ammoniacal liquor are appropriate, deionized water 50-60, and preparation method is:

(1) first drop in DMF by cellulose acetate, be stirred to it and dissolve completely, drop in solution subsequently by nano silicon, closed ultrasonic dispersed with stirring 3-4h, the cellulose acetate solution obtaining blending nano silicon is for subsequent use;

(2) emulsifier op-10, sodium lauryl sulphate are dropped in reactor, add the deionized water of 10-15 weight part subsequently, be stirred to after dissolving completely, material prepared by input step (1) and butyl acrylate, methyl methacrylate, vinylformic acid, be warming up to 70-75 DEG C, be uniformly mixed 2-3h, obtain pre-emulsion for subsequent use;

(3) seed emulsion preparation: ammonium persulphate and appropriate ammoniacal liquor are dissolved in the deionized water of surplus, regulator solution pH value is 6.0-7.5, and be heated to 65-75 DEG C, then pre-emulsion prepared by this solution of 2/3 weight part and 1/4 weight part step (2) is got respectively, be added drop-wise in reaction vessel simultaneously, rate of addition is that 45-60 drips/min, stops dripping, obtain seed emulsion when question response system is blue-fluorescence;

(4) gained seed emulsion drips ammonium persulfate solution and the pre-emulsion of residual content again after leaving standstill 15-20min, after dropping terminates under 70-75 DEG C of condition constant temperature 50-60min, be heated to 75-80 DEG C subsequently, strong stirring mixing 1.5-2h under constant temperature, stop subsequently stirring, when emulsion naturally cools to below 50 DEG C, ammoniacal liquor regulator solution pH value is 7.0, subsequent filtration discharging and get final product.

The resin adhesive adopted in the coating paste that wallpaper of the present invention uses is cellulose acetate modification by copolymerization water-borne acrylic resin emulsion, this emulsion property is stablized, not containing chronic volatility toxic compounds such as formaldehyde, the coating formed is smooth flexible, possesses water resistant, anti-soil, the function such as antibacterial, than traditional PVC paste material not only plasticization temperature can be low to moderate 120-150 DEG C, polylactic acid porous fiber containing hollow glass micropearl can be dispersed in emulsion, reach efficient insulation, soundproof effect, improve the use properties of coating, this Novel wall paper feel is smooth, lightweight breathable, fire safety, using value is high.

Embodiment

This embodiment wallpaper is made up after super-dry, plasticizing, embossing of non-woven fabrics base material and the coating paste being coated on substrate surface, and wherein coating paste is made up of the raw material of following weight part: the aqueous polyethylene wax emulsion 3 that the hollow glass micropearl 3 that composite water soluble Emulsion acrylic resin 80, polylactic acid slice 8, granularity are 10 μm, solid content are 30%, vinyl two stearic amide 0.1, silane coupling agent kh5500.1.

This coating paste preparation method is:

(1) hollow glass micropearl polylactic acid porous fiber preparation: first polylactic acid slice, hollow glass micropearl, the two stearic amide of vinyl, silane coupling agent kh550 are carried out melt-spinning after being uniformly mixed, making length is 80 μm, and diameter is the porous staple fibre of 30 μm;

(2) polylactic acid porous for hollow glass micropearl fiber is dropped in composite water soluble Emulsion acrylic resin, add other leftover materials after being uniformly mixed 30min, strong stirring mixing 4h, leave standstill after placing 30min subsequently and get final product.

Wherein composite water soluble Emulsion acrylic resin is made up of the raw material of following weight part: nano silicon 0.5, cellulose acetate 4, N, dinethylformamide 12, butyl acrylate 18, methyl methacrylate 15, vinylformic acid 10, ammonium persulphate 5, polyoxyethylene nonylphenol ether 2, sodium lauryl sulphate 1, ammoniacal liquor are appropriate, deionized water 50, and preparation method is:

(1) first drop in DMF by cellulose acetate, be stirred to it and dissolve completely, drop in solution subsequently by nano silicon, closed ultrasonic dispersed with stirring 3h, the cellulose acetate solution obtaining blending nano silicon is for subsequent use;

(2) polyoxyethylene nonylphenol ether, sodium lauryl sulphate are dropped in reactor, add the deionized water of 10 weight parts subsequently, be stirred to after dissolving completely, material prepared by input step (1) and butyl acrylate, methyl methacrylate, vinylformic acid, be warming up to 70 DEG C, be uniformly mixed 2h, obtain pre-emulsion for subsequent use;

(3) seed emulsion preparation: ammonium persulphate and appropriate ammoniacal liquor are dissolved in the deionized water of surplus, regulator solution pH value is 6.0, and be heated to 65 DEG C, then pre-emulsion prepared by this solution of 2/3 weight part and 1/4 weight part step (2) is got respectively, be added drop-wise in reaction vessel simultaneously, rate of addition is 45/min, stops dripping, obtain seed emulsion when question response system is blue-fluorescence;

(4) gained seed emulsion drips ammonium persulfate solution and the pre-emulsion of residual content again after leaving standstill 15min, after dropping terminates under 70 DEG C of conditions constant temperature 50min, be heated to 75 DEG C subsequently, strong stirring mixing 1.5h under constant temperature, stop subsequently stirring, when emulsion naturally cools to below 50 DEG C, ammoniacal liquor regulator solution pH value is 7.0, subsequent filtration discharging and get final product.

Coating paste is coated in nonwoven fabric base paper surface, control glue spread is 15g/m ², after its drying, plastify embossing under 135 DEG C of conditions, carry out performance test to product according to relevant criterion after cooling forming, test result is:

Soundproof effect is tested: detected by ND10 sound-level meter, noise on average reduces 25dB.

Moisture regain: 0.60%; Gas permeability: 9.5L/(m ²s); Tensile strength: 3215N/m, bursting strength: 174.8KPa.

Antibacterial and mouldproof: can 95.5% be reached to streptococcus aureus bacteriostasis rate; Can 97.0% be reached to intestinal bacteria bacteriostasis rate; It is 0 grade to the antibacterial grade of aspergillus niger, chaetomium globosum, green sticky broom bacterium.

Wallpaper prepared by this embodiment meets the regulation of GB18585-2001, the heavy metal antimony, arsenic, barium, cadmium, chromium, lead, mercury, the selenium that prohibit the use not containing national regulation, not containing formaldehyde, not containing vinyl chloride monomer.

Claims (3)

1. the sound-insulating type wallpaper containing modified acrylic resin emulsion coating, this wallpaper is made up after super-dry, plasticizing, embossing of non-woven fabrics base material and the coating paste being coated on substrate surface, it is characterized in that, described coating paste is made up of the raw material of following weight part: the aqueous polyethylene wax emulsion 3-5 that the hollow glass micropearl 3-4 that composite water soluble Emulsion acrylic resin 80-100, polylactic acid slice 8-10, granularity are 10-20 μm, solid content are 30-35%, vinyl two stearic amide 0.1-0.2, silane coupling agent kh5500.1-0.2.

2. a kind of sound-insulating type wallpaper containing modified acrylic resin emulsion coating as claimed in claim 1, it is characterized in that, described coating paste preparation method is:

(1) hollow glass micropearl-polylactic acid porous fiber preparation: first polylactic acid slice, hollow glass micropearl, the two stearic amide of vinyl, silane coupling agent kh550 are carried out melt-spinning after being uniformly mixed, making length is 80-100 μm, and diameter is the porous staple fibre of 30-50 μm;

(2) hollow glass micropearl-polylactic acid porous fiber is dropped in composite water soluble Emulsion acrylic resin, add other leftover materials after being uniformly mixed 30-50min, strong stirring mixing 4-5h, leave standstill after placing 30-40min subsequently and get final product.

3. a kind of sound-insulating type wallpaper containing modified acrylic resin emulsion coating as claimed in claim 1 or 2, it is characterized in that, described composite water soluble Emulsion acrylic resin is made up of the raw material of following weight part: nano silicon 0.5-0.8, cellulose acetate 4-5, N, dinethylformamide 12-15, butyl acrylate 18-25, methyl methacrylate 15-20, vinylformic acid 10-15, ammonium persulphate 5-8, emulsifier op-10 2-3, sodium lauryl sulphate 1-3, ammoniacal liquor are appropriate, deionized water 50-60, and preparation method is:

(1) first drop in DMF by cellulose acetate, be stirred to it and dissolve completely, drop in solution subsequently by nano silicon, closed ultrasonic dispersed with stirring 3-4h, the cellulose acetate solution obtaining blending nano silicon is for subsequent use;

(2) emulsifier op-10, sodium lauryl sulphate are dropped in reactor, add the deionized water of 10-15 weight part subsequently, be stirred to after dissolving completely, material prepared by input step (1) and butyl acrylate, methyl methacrylate, vinylformic acid, be warming up to 70-75 DEG C, be uniformly mixed 2-3h, obtain pre-emulsion for subsequent use;

(3) seed emulsion preparation: ammonium persulphate and appropriate ammoniacal liquor are dissolved in the deionized water of surplus, regulator solution pH value is 6.0-7.5, and be heated to 65-75 DEG C, then pre-emulsion prepared by this solution of 2/3 weight part and 1/4 weight part step (2) is got respectively, be added drop-wise in reaction vessel simultaneously, rate of addition is that 45-60 drips/min, stops dripping, obtain seed emulsion when question response system is blue-fluorescence;

(4) gained seed emulsion drips ammonium persulfate solution and the pre-emulsion of residual content again after leaving standstill 15-20min, after dropping terminates under 70-75 DEG C of condition constant temperature 50-60min, be heated to 75-80 DEG C subsequently, strong stirring mixing 1.5-2h under constant temperature, stop subsequently stirring, when emulsion naturally cools to below 50 DEG C, ammoniacal liquor regulator solution pH value is 7.0, subsequent filtration discharging and get final product.