Flame-retardant PVC wood-plastic profile and preparation method thereof

A technology of wood-plastic profiles and PVC resin, which is applied in the field of flame-retardant PVC materials, can solve the problems of polluting the environment, human body or equipment, loss of life and property, and difficulties in firefighting, and achieves the effects of reducing production costs and good flame retardancy

Inactive Publication Date: 2020-05-05
林铭昭
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although PVC itself is not easy to burn, PVC materials will produce a lot of black smoke during the combustion process, and will release gases such as HCI, CO 2 , CO, toluene and other corrosive poisonous and harmful gases, which pollute the environment and cause "secondary harm" to the human body or equipment. Huge loss of life and property

Method used

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  • Flame-retardant PVC wood-plastic profile and preparation method thereof
  • Flame-retardant PVC wood-plastic profile and preparation method thereof
  • Flame-retardant PVC wood-plastic profile and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0036] 1. Pretreatment:

[0037] Put the wood flour with a particle size of 60 mesh into the dryer at a temperature range of 200°C, heat it for 15 minutes for baking treatment, dry the water and evaporate the impurities. Add the baked wood flour to a high-speed mixer, stir and heat to 90°C, add a silane coupling agent of 2% of the total weight of the polishing slag, mix the silane coupling agent and absolute ethanol in a ratio of 1:1, and spray it on the polishing slag Surface, stir at high speed for 10 minutes to activate; discharge the material into the cold mixer and stir for 8 minutes, discharge after cooling to obtain surface activated wood powder, and set aside.

[0038] 2. Mixing:

[0039]The various raw material formulas that make up the flame-retardant PVC wood-plastic profile are weighed according to the following mass fractions respectively, and set aside.

[0040]

[0041] Put the PVC resin powder into the high-speed mixer, stir at high speed for 7 minutes to ...

Embodiment approach 2

[0046] 1. Pretreatment:

[0047] Add the wood powder with a particle size of 60 mesh into the dryer at a temperature of 210°C, heat it for 10 minutes for baking treatment, dry the water and evaporate the impurities. The wood flour after baking treatment is added to a high-speed mixer and heated to 100 ° C, and a titanate coupling agent of 1.5% of the total mass of the wood flour is added, and the titanate coupling agent and chlorinated paraffin are mixed in a ratio of 1:1. Spray on the surface of polishing slag, stir at high speed for 8 minutes to activate; discharge the material into the cold mixer and stir for 10 minutes, discharge after cooling to obtain activated wood powder, and set aside.

[0048] 2. Mixing:

[0049] The various raw material formulas that make up the flame-retardant PVC wood-plastic profile are weighed according to the following mass fractions respectively, and set aside.

[0050]

[0051] Put the PVC resin powder into the high-speed mixer, stir at ...

Embodiment approach 3

[0056] 1. Pretreatment:

[0057] Put the wood powder with a particle size of 60 mesh into the dryer at a temperature of 195°C, heat it for 10 minutes for baking treatment, dry the water and evaporate the impurities. The wood flour after baking treatment is added to a high-speed mixer and heated to 100 ° C, and a titanate coupling agent of 1.5% of the total mass of the wood flour is added, and the titanate coupling agent and chlorinated paraffin are mixed in a ratio of 1:1. Spray on the surface of polishing slag, stir and activate at high speed for 8 minutes; discharge the material into the cold mixer and stir for 10 minutes, discharge after cooling, and obtain activated wood powder.

[0058] 2. Mixing:

[0059] The various raw material formulas that make up the flame-retardant PVC wood-plastic profile are weighed according to the following mass fractions respectively, and set aside.

[0060]

[0061]

[0062] Put the PVC resin powder into the high-speed mixer, stir at ...

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Abstract

The invention discloses a flame-retardant PVC wood-plastic profile and a preparation method thereof. The flame-retardant and smoke-suppressing properties of various oxides and chlorides in stone, ceramic tiles and artificial stone polishing residues are fully utilized to replace expensive flame retardants in the prior art, and the flame-retardant PVC wood-plastic profile with good flame-retardantand smoke-suppressing properties for outdoor garden wood, fences, architectural decoration plates and doors and windows is prepared through the steps of pretreatment, mixing, extrusion and the like. In the formula, the polishing slag can replace calcium carbonate to serve as an inorganic filler to be filled into a large number of flame-retardant PVC wood-plastic profiles, so that the production cost can be reduced, the problems that stone, ceramic tiles and artificial stone polishing slag are difficult to recycle and environmental pollution is caused by waste landfill are solved, and waste isturned into wealth.

Description

technical field [0001] The invention relates to the technical field of flame-retardant PVC materials, and mainly relates to a flame-retardant PVC wood-plastic profile and a preparation method. Background technique [0002] Polyvinyl chloride PVC resin itself has good flame retardancy, and its chlorine content is as high as 56%. Due to the flame retardancy, wear resistance, chemical corrosion resistance and comprehensive mechanical properties of PVC plastic, it is a general-purpose material with the most superior performance-price ratio. It is widely used in the manufacture of pipes, plates and door and window profiles, especially in flame-retardant Demanding architectural decoration industry. Although PVC itself is not easy to burn, PVC materials will produce a lot of black smoke during the combustion process, and will release gases such as HCI, CO 2 , CO, toluene and other corrosive poisonous and harmful gases, which pollute the environment and cause "secondary harm" to t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/06C08L97/02C08K13/02C08K3/36C08K3/016
CPCC08K2201/014C08L27/06C08L2201/02C08L2203/18C08L2205/03C08L2205/035C08L2205/16C08L97/02C08K13/02C08K3/36C08K3/016
Inventor 林广成林铭昭
Owner 林铭昭
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