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Black flame-retardant silicon rubber material and preparation method thereof

A silicone rubber and black technology, which is applied in the field of materials, can solve the problems of black flame-retardant silicone rubber materials such as no relevant reports, and achieve the effects of easy industrialization, simple preparation method, and realization of reuse

Inactive Publication Date: 2012-08-22
SHANGHAI UNIV OF ENG SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] To sum up, it can be seen that the current utilization of waste tires is limited to the refurbishment of old tires and as a lightweight filler for building materials, and the technology of using waste tires to prepare black flame-retardant silicone rubber materials has not been reported so far.

Method used

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  • Black flame-retardant silicon rubber material and preparation method thereof
  • Black flame-retardant silicon rubber material and preparation method thereof
  • Black flame-retardant silicon rubber material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Cut 80 grams of discarded tires into flakes and mix them evenly with 20 grams of dodecylamine; put the mixture into a crucible, put it in a muffle furnace, and bake it at 400°C for 6 hours; stop heating, seal it for cooling, and take it out after cooling. Crushed through a 200-mesh sieve to obtain a powdery charred residue.

[0035] Add 33.7 grams of diamine hydrogen phosphate and 11.2 grams of the above-mentioned powdery carbonization residue to 50 grams of component A, stir at room temperature for 40 minutes to mix the flame retardant and component A evenly; then add 5 grams of component B and 0.1 gram of catalyst , stirred at room temperature for 20 minutes to make it evenly mixed with flame retardant and component A; pour the obtained mixed material into the ball mill tank of the ball mill, and ball mill at room temperature for 0.5 hour; take it out, pour it into the mold, Vacuum pumping at room temperature to discharge the air bubbles therein; curing reaction at 20...

Embodiment 2

[0042] Cut 85 grams of discarded tires into flakes and mix them evenly with 15 grams of dodecylamine; put the mixture into a crucible, put it in a muffle furnace, and bake it at 500°C for 5 hours; stop heating, airtightly cool it, and take it out after cooling. Crush through a 250 mesh sieve to obtain powdery charred residue.

[0043] Add 27.6 grams of diamine hydrogen phosphate and 9.2 grams of the above-mentioned powdery carbonization residue to 55 grams of component A, stir at room temperature for 50 minutes, and mix the flame retardant and component A evenly; then add 8 grams of component B and 0.2 grams of catalyst , stirred at room temperature for 25 minutes to make it evenly mixed with the flame retardant and component A; pour the obtained mixed material into the ball mill tank of the ball mill, and ball mill at room temperature for 1 hour; take it out, pour it into the mold, Vacuum pumping at room temperature to discharge the air bubbles; curing reaction at 30°C for 36...

Embodiment 3

[0050] Cut 90 grams of discarded tires into slices and mix them evenly with 10 grams of dodecylamine; put the mixture into a crucible, put it in a muffle furnace, and bake it at 600 ° C for 4 hours; stop heating, seal it for cooling, and take it out after cooling. Crushed through a 300-mesh sieve to obtain a powdery charred residue.

[0051] Add 22.3 grams of diamine hydrogen phosphate and 7.4 grams of the above-mentioned powdery carbonization residue to 60 grams of component A, stir at room temperature for 60 minutes, and mix the flame retardant and component A evenly; then add 10 grams of component B and 0.3 grams of catalyst , stirred at room temperature for 30 minutes to make it evenly mixed with the flame retardant and component A; pour the obtained mixture into the ball mill tank of the ball mill, and ball mill at room temperature for 1.5 hours; take it out, pour it into the mold, Vacuum pumping at room temperature to discharge the air bubbles; curing reaction at 40°C fo...

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Abstract

The invention discloses a black flame-retardant silicon rubber material and a preparation method thereof. The silicon rubber material is prepared by mixing and curing the following components in parts by mass: 50-60 parts of component A, 5-10 parts of component B, 0.1-0.3 part of catalyst and 29.7-44.9 parts of flame retardant. The component A is unvulcanized silicon rubber containing vinyl or propenyl terminal group; the component B is hydrogen-containing polysiloxane; the catalyst is a soluble platinic compound; and the flame retardant is a carbonized residue-diammonium hydrogen phosphate mixture obtained by pyrolyzing scrap tires. The carbonized residue-diammonium hydrogen phosphate mixture obtained by pyrolyzing scrap tires is used as the flame retardant to generate a synergic flame-retardant effect, thereby achieving the goal of preparation of the excellent-performace black flame-retardant silicon rubber material from the environment-friendly flame retardant, and more importantly, reutilizing the scrap tire resources; and thus, the invention has an important meaning for environmental protection business.

Description

technical field [0001] The invention relates to a black flame-retardant silicone rubber material and a preparation method thereof, in particular to a black flame-retardant silicone rubber material made from waste tires and a preparation method thereof, belonging to the field of material technology. Background technique [0002] With the rapid development of the transportation industry and the automobile industry, the production volume of tires and the demand for rubber are increasing day by day, and the generation speed of waste tires is also rapidly accelerating. Waste tires are difficult to decompose under natural conditions, and a large amount of accumulation will bring a series of problems, such as: a large number of storage yards are required; it is easy to spontaneously ignite and difficult to extinguish under natural conditions; it is easy to form a mosquito breeding ground and cause epidemic diseases, etc., causing secondary public hazards . It is reported that in 2...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L83/07C08L83/05C08K3/32C08K3/04
Inventor 郭曦吴鼎汤丽娟王锦成郝文莉
Owner SHANGHAI UNIV OF ENG SCI