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Preparation method of anti-sticking asphalt isolation agent

A technology of release agent and asphalt, which is applied in the direction of coating, etc., can solve the problems of poor stability of asphalt release agent, high consumption of diesel or bio-oil, lack of isolation and anti-sticking, etc., and achieve good stability, broad application prospects, anti-corrosion good sticky effect

Inactive Publication Date: 2017-06-16
戴琪
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention: in view of the poor stability of the traditional asphalt release agent, which cannot achieve the effect of isolation and anti-sticking, and needs to consume a large amount of diesel oil or bio-oil at the same time, and the problem of high cost, the present invention first uses dodecylbenzene Sodium sulfonate and Span 80 are used to modify talcum powder under oil bath conditions to obtain modified talc powder, and waste engine oil is used as raw material, after impurity removal treatment, mixed with activated clay and sodium carbonate solution for deacidification to obtain Pretreat waste engine oil, then compound emulsifiers such as Span 60 and Tween 60 to form a compound emulsifier, and finally mix it with pretreated waste engine oil, waste oil, modified talcum powder, etc. Adhesive asphalt release agent

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0017] First, weigh 300g of talc powder, put it into a pulverizer and crush it, pass through a 100-mesh sieve, add the sieved talc powder into 3L of deionized water, stir and mix at 400r / min for 20min, and then add 50g of dodecylbenzenesulfonate Sodium bicarbonate, 30g Span 80, continue to stir in 100°C oil bath for 40min to obtain a mixture, filter the mixture with suction, wash the filter cake with deionized water for 5 times, transfer to a 110°C drying oven and dry to constant weight , to obtain modified talcum powder, set aside; then measure 600mL of waste engine oil, filter, remove filter residue, add 50g of activated clay to the filtrate, stir at 400r / min for 3h, then add 200mL of 1% sodium carbonate solution, continue Stir for 2 hours, let stand to separate layers, collect the upper oil phase to obtain pretreated waste engine oil, and set aside; by weight fraction, weigh 5 parts of Span 60, 15 parts of Tween 60, 25 parts of Tween 80, 10 parts of OP- 10. Add 20 parts of ...

example 2

[0020] First, weigh 200g of talc powder, put it into a pulverizer and crush it, pass through a 100-mesh sieve, add the sieved talc powder into 2L of deionized water, stir and mix at 300r / min for 15min, and then add 30g of dodecylbenzenesulfonate Sodium bicarbonate, 20g Span 80, continue stirring for 30min under 90°C oil bath to obtain a mixture, filter the mixture with suction, wash the filter cake with deionized water for 3 times, then transfer to a 105°C drying oven to dry to constant weight , to obtain modified talcum powder, set aside; then measure 500mL of waste engine oil, filter, remove the filter residue, add 30g of activated clay to the filtrate, stir at 300r / min for 1h, then add 100mL of 1% sodium carbonate solution by mass fraction, continue Stir for 1 hour, let stand to separate layers, and collect the upper oil phase to obtain pretreated waste engine oil for later use; by weight fraction, weigh 3 parts of Span 60, 12 parts of Tween 60, 20 parts of Tween 80, and 8 p...

example 3

[0023]First, weigh 250g of talc powder, put it into a pulverizer and crush it, pass through a 100-mesh sieve, add the sieved talc powder into 3L of deionized water, stir and mix at 350r / min for 17min, and then add 40g of dodecylbenzenesulfonate sodium nitrate, 25g Span 80, and continued stirring for 35min in an oil bath at 95°C to obtain a mixture, which was suction-filtered, and the filter cake was washed with deionized water for 4 times, then transferred to a drying oven at 107°C and dried to constant weight , to obtain modified talcum powder, set aside; then measure 550mL of waste engine oil, filter, remove filter residue, add 40g of activated clay to the filtrate, stir at 350r / min for 2h, then add 150mL of 1% sodium carbonate solution by mass fraction, continue Stir for 2 hours, let stand to separate layers, collect the upper oil phase to obtain pretreated waste engine oil, and set aside; by weight fraction, weigh 4 parts of Span 60, 13 parts of Tween 60, 22 parts of Tween ...

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Abstract

Belonging to the technical field of preparation of asphalt isolation agents, the invention relates to a preparation method of an anti-sticking asphalt isolation agent. The method includes: firstly utilizing sodium dodecyl benzene sulfonate and span 80 to modify talcum powder under an oil bath condition to obtain modified talcum powder, then using waste engine oil as the raw material, conducting impurity removal treatment, then performing mixing with activated clay and a sodium carbonate solution, then conducting deacidification to obtain pretreated waste engine oil, then compounding span 60, Tween 60 and other emulsifiers to obtain a compound emulsifier, and finally mixing the compound emulsifier with the pretreated waste engine oil, illegal cooking oil, modified talcum powder and other substances, thus obtaining the anti-sticking asphalt isolation agent. The anti-sticking asphalt isolation agent prepared by the method provided by the invention has good stability performance, is free of oil-water separation phenomenon in 72h, and has good isolation and anti-sticking effects, when a road roller works for 1.5-2.0h, asphalt adhesion starts to appear on tire surfaces.

Description

technical field [0001] The invention relates to a preparation method of an asphalt release agent for anti-sticking, and belongs to the technical field of asphalt release agent preparation. Background technique [0002] In the construction process of asphalt pavement, rolling is the last process. The quality of rolling effect directly affects the mechanical properties and functional characteristics of asphalt concrete pavement. High-quality rolling can make the asphalt pavement layer achieve a high degree of compaction. , and can make it have a good balance to ensure that the service life of the pavement meets or exceeds the design requirements. In order to prevent and reduce the bonding of asphalt mixture with transport vehicles and road roller machinery, release agents are used during construction. [0003] At present, in domestic asphalt mixture transportation and asphalt pavement construction, diesel oil, vegetable oil, emulsified bio-oil, etc. are generally used as rele...

Claims

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Application Information

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IPC IPC(8): C09D191/00C09D183/04C09D129/04C09D7/12
CPCC09D191/00C08L2205/02C08L2205/025C08L2205/035C09D7/61C09D7/62C09D7/63C09D7/65C08L91/00C08L83/04C08L71/02C08L91/06C08L29/04C08K13/06C08K9/08C08K9/04C08K3/34C08K5/098
Inventor 戴琪薛红梅张潇
Owner 戴琪
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