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High-strength and high-toughness flame retardant and smoke suppressing PVC wood-plastic foaming composite building template and preparation method thereof

A high-strength and high-toughness building formwork technology, which is applied in the field of wood-plastic foamed composite building formwork, can solve the problems of restricting the large-scale use of wood-plastic composite foamed building formwork, poor weather resistance, flammability and smoke generation, etc., and achieve improved flame retardancy Effects of smoke suppression, impact resistance improvement, and lattice integrity

Inactive Publication Date: 2016-07-20
蒙城县欣瑞特建材有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Wood-plastic composite foam composite building formwork combines the dual advantages of wood and plastic. It has smooth surface, high strength, low density, light and easy to install, moisture-proof and insect-proof, stable weather resistance, clean and environmentally friendly, and can be nailed and sawed like a wooden board. It has been widely used in many aspects, especially in building formwork, but the traditional wood-plastic composite foam composite building formwork has the disadvantages of poor weather resistance, low toughness and flammability and smoke, which limits the use of wood-plastic composite foam. Large-scale use of plastic composite foam building formwork

Method used

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  • High-strength and high-toughness flame retardant and smoke suppressing PVC wood-plastic foaming composite building template and preparation method thereof
  • High-strength and high-toughness flame retardant and smoke suppressing PVC wood-plastic foaming composite building template and preparation method thereof
  • High-strength and high-toughness flame retardant and smoke suppressing PVC wood-plastic foaming composite building template and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Each component is weighed in parts by weight, respectively weighing 100 parts of SG7 type PVC resin, particle size 200 mesh; 30 parts of poplar wood powder and soybean straw powder mixture, the mass ratio of the two is 1:1; flame retardant alkali 23 parts of magnesium sulfate whiskers; 0.53 parts of coupling agent (γ-propyl methacrylate trimethoxysilane); 3 parts of foaming agent, the foaming agent is AC, NaHCO 3 Mixed blowing agent, NaHCO 3 : AC mass ratio is 2:1; foam regulator ZnO2.5 parts; rare earth composite stabilizer 2.5 parts; lubricant stearin 1.5 parts; plasticizer DOP1 part; ACR processing modifier 8 parts; 8 parts of toughening agent MBS resin; 0.015 parts of a mixture of ultraviolet absorber UV-P and ultraviolet absorber UV-O, and the mass ratio of the two is 1:1.

[0036] Step (1): First dilute the γ-propylmethacrylate trimethoxysilane coupling agent with xylene as a solvent, and couple the plant fiber powder mixture in a jet mixer at a temperature of 65...

Embodiment 2

[0042] Each component is all to be weighed according to weight part, weighs 100 parts of SG8 model resin respectively, particle size 200 meshes; Poplar wood powder 35 parts; Flame retardant basic magnesium sulfate whisker 18 parts; Propyl acrylate trimethoxysilane) 0.53 parts; Foaming agent 3 parts, foaming agent is AC, NaHCO 3 Mixed blowing agent, its NaHCO 3: AC mass ratio is 2:1; foam regulator PbO2.8 parts; barium zinc composite stabilizer 3 parts; lubricant chlorinated paraffin 1.8 parts; plasticizer DOP0.7 parts; processing modifier ACR6 parts; 10 parts of toughening agent MBS resin; 0.01 part of the mixture of ultraviolet absorber UV-P and ultraviolet absorber UV-O, and the ratio is 1:1.

[0043] Step (1): First use xylene as a solvent to dilute the γ-propylmethacrylate trimethoxysilane coupling agent at a temperature of 65-80°C, place the poplar wood powder in a jet mixer, and dilute the The coupling agent is evenly sprayed on the surface of the poplar wood powder to...

Embodiment 3

[0049] Each component is weighed in parts by weight, respectively weighing 100 parts of SG8 type resin, particle size 200 mesh; 30 parts of wood flour and rice husk powder mixture, the mass ratio of the two is 1:1; 23 parts of magnesium whiskers, 0.53 parts of coupling agent (γ-propyl methacrylate trimethoxysilane); 3.5 parts of foaming agent, of which NaHCO 3 : AC mass ratio is 2:1; 3 parts of foam regulator zinc stearate; 2.8 parts of lead salt composite stabilizer; 1.9 parts of lubricant, which is the mixture of zinc stearate and polyethylene wax, zinc stearate: The mass ratio of polyethylene wax is 2:1; 1.3 parts of plasticizer DOP, 9 parts of processing modifier ACR, 11 parts of toughening agent MBS resin, the mixture of ultraviolet absorber UV-P and ultraviolet absorber UV-O is 0.008 and The ratio is 1:1.

[0050] Step (1): First dilute the γ-propylmethacrylate trimethoxysilane coupling agent with xylene as a solvent, and couple the plant fiber powder mixture in a jet m...

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Abstract

The invention discloses a high-strength and high-toughness flame retardant and smoke suppressing PVC wood-plastic foaming composite building template and a preparation method thereof. The high-strength and high-toughness flame retardant and smoke suppressing PVC wood-plastic foaming composite building template is prepared from PVC resin, an organic filler, a flame retardant, a coupling agent, a foaming agent, a foaming adjuster, a composite stabilizer, a lubricant, a plasticizer, a processing modifier, a flexibilizer MBS resin and an ultraviolet absorbent. By the adoption of the MBS flexibilizer, the impact strength of a product is enhanced, and the compatibility and the processability of the product are further improved. The high-strength and high-toughness flame retardant and smoke suppressing PVC wood-plastic foaming composite building template is prepared by a one-time forming process which is simple and feasible; an experiment shows that the performance of the prepared high-strength and high-toughness flame retardant and smoke suppressing PVC wood-plastic foaming composite building template is much higher than that required by a common building template, can meet the standard of grade I in China on wood-plastic building templates, and can be recycled for 30 times, and wastes can be recycled and remolded to achieve the effects of recycling and zero loss; furthermore, the requirements on energy conservation and environment protection in China are met, and the PVC wood-plastic foaming composite building template has considerable economical benefits.

Description

technical field [0001] The invention relates to the technical field of wood-plastic foamed composite building formwork, in particular to a high-strength, high-toughness, flame-retardant and smoke-suppressing PVC wood-plastic foamed composite building formwork and a preparation method thereof. Background technique [0002] Wood-plastic composite foam composite building formwork combines the dual advantages of wood and plastic. It has smooth surface, high strength, low density, light and easy to install, moisture-proof and insect-proof, stable weather resistance, clean and environmentally friendly, and can be nailed and sawed like a wooden board. It has been widely used in many aspects, especially in building formwork, but the traditional wood-plastic composite foam composite building formwork has the disadvantages of poor weather resistance, low toughness and flammability and smoke, which limits the use of wood-plastic composite foam. Large-scale use of plastic composite foam...

Claims

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Application Information

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IPC IPC(8): C08L27/06C08L97/02C08L51/04C08K13/06C08K9/06C08K7/08C08K5/12C08J9/10C08J9/08
CPCC08L27/06C08J9/08C08J9/103C08J2203/02C08J2203/04C08J2203/18C08J2327/06C08J2497/02C08L2201/02C08L2203/14C08L2205/035
Inventor 任军郭知理邹虎唐龙样郁建华
Owner 蒙城县欣瑞特建材有限公司
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