Polishing slag modified PVC (polyvinyl chloride) flame-retardant profile granules and preparation method thereof

A polishing slag and flame-retardant technology, which is applied in the field of polishing slag-modified PVC flame-retardant material pellets and its preparation, can solve problems such as loss of life and property, pollution of the environment, human body or equipment, and difficulties in firefighting, and achieve good flame retardancy and reduce The effect of production costs

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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  • Polishing slag modified PVC (polyvinyl chloride) flame-retardant profile granules and preparation method thereof
  • Polishing slag modified PVC (polyvinyl chloride) flame-retardant profile granules and preparation method thereof
  • Polishing slag modified PVC (polyvinyl chloride) flame-retardant profile granules and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0031] 1. Mixture:

[0032] The various raw material formulations that make up the polishing slag-modified PVC flame-retardant profile pellets are weighed according to the following mass fractions respectively, and set aside.

[0033]

[0034] Put the PVC resin powder into the high-speed mixer, stir at high speed for 7 minutes to dry the water; then add synthetic vegetable fatty acid ester, stir at high speed for 5-10 minutes; then add the rest of the raw materials, stir at low speed for 3 minutes; In the mixer, stir for another 10 minutes, discharge the material after cooling, and prepare the polishing slag modified PVC flame-retardant profile pellet mixture.

[0035] 2. Extrusion:

[0036] Put the mixture into the twin-screw extruder, and extrude it into a round rubber strip through the head die of the extruder. The temperature of each zone of the extruder is: zone 1 / 130°C, zone 2 / 160°C, zone 3 / 170°C , zone 4 / 175°C, handpiece / 180°C.

[0037] 3. Pelletizing:

[0038] T...

Embodiment approach 2

[0041] 1. Mixture:

[0042] The various raw material formulas that make up the marble polishing slag-modified PVC flame-retardant profile pellets are weighed according to the following mass fractions respectively, and set aside.

[0043]

[0044]

[0045] Put the PVC resin powder into the high-speed mixer, stir at high speed for 7 minutes to dry the water; then add the rest of the raw materials, stir at low speed for 3 minutes; discharge into the cold mixer, stir for another 10 minutes, discharge after cooling, and make The marble polishing slag modified PVC flame-retardant profile pellet mixture was obtained.

[0046] 2. Extrusion:

[0047] Put the mixture into the single-screw extruder, and extrude it into a round rubber strip through the head die of the extruder. The temperature of each zone of the extruder is: zone 1 / 145°C, zone 2 / 155°C, zone 3 / 165°C , Head / 175°C.

[0048] 3. Pelletizing:

[0049] The rubber strip extruded by the extruder through the head die is ...

Embodiment approach 3

[0052] 1. Mixture:

[0053] The various raw material formulas that make up the artificial stone polishing slag-modified PVC flame-retardant profile pellets are weighed according to the following mass fractions respectively, and set aside.

[0054]

[0055] Put the PVC resin powder into the high-speed mixer, stir at high speed for 7 minutes to dry the water; then add the rest of the raw materials, stir at low speed for 3 minutes; discharge into the cold mixer, stir for another 10 minutes, discharge after cooling, and make To obtain artificial stone polishing slag modified PVC flame retardant profile pellet mixture.

[0056] 2. Extrusion:

[0057] Put the mixture into the single-screw extruder, and extrude it into a round rubber strip through the head die of the extruder. The temperature of each zone of the extruder is: zone 1 / 135°C, zone 2 / 155°C, zone 3 / 165°C , Head / 175°C.

[0058] 3. Pelletizing:

[0059] The rubber strip extruded by the extruder through the head die is...

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Abstract

The invention discloses polishing slag modified PVC flame-retardant profile granules and a preparation method thereof. By adding stone, ceramic tiles and artificial stone polishing slag powder with flame retardance and smoke suppression performance into a formula, and through the steps of mixing, extruding, pelletizing and the like, the hard PVC profile granules with flame retardance and smoke suppression performance are prepared. The product is applied to manufacturing of pipes, plates and door and window profiles with good flame retardance and smoke suppression performance. In the formula, the flame-retardant and smoke-suppression characteristics of various oxides and chlorides in the polishing slag are fully utilized to replace expensive flame retardants in the prior art to prepare theflame-retardant and smoke-suppression hard PVC profile granules. Moreover, the polishing slag can replace calcium carbonate to serve as an inorganic filler to fill the hard PVC profile in quantity, sothat the production cost can be reduced, and the problems that the stone, ceramic tile and artificial stone polishing slag are difficult to recycle and environmental pollution is caused by waste landfill are solved.

Description

technical field [0001] The invention relates to the technical field of rigid PVC profiles, and mainly relates to a polishing slag-modified PVC flame-retardant profile pellet 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 har...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/06C08L23/28C08K13/02C08K3/36C08K3/016
CPCC08K2201/014C08L27/06C08L2201/02C08L2203/18C08L2205/03C08L2205/035C08L23/286C08K13/02C08K3/36C08K3/016
Inventor 林广成林铭昭
Owner 林铭昭
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