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Method for preparing modified asphalt by utilizing waste transfusion bag film in one step

A technology of modified asphalt and infusion bag, which is applied to building components, building insulation materials, buildings, etc., can solve the problem that the low-temperature performance of modified asphalt has not been studied, and achieve the effect of improving comprehensive performance and reducing costs.

Active Publication Date: 2013-07-10
FUJIAN NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this method effectively improves the high-temperature performance and deformation resistance of the base asphalt while solving the "white pollution", the main component of the packaging waste is polyethylene, and the low-temperature performance of the modified asphalt has not been studied.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] 1. Formula according to the mass ratio:

[0033] Base bitumen 100kg

[0034] Infusion bag film 4.5 kg

[0035] Nano montmorillonite 2kg

[0036] POE-g-MAH 1.5 kg

[0037] 2. Preparation

[0038]Heat and melt the base asphalt, keep the temperature at 170°C, add compatibilizer POE-g-MAH, mechanically shear at 500 rpm / min for 5 minutes; then add discarded disposable multi-layer co-extruded infusion bag film fragments, 500 Mechanically shear at a rotational speed of rpm / min for 10 minutes; then add nano-montmorillonite, send the mixture into a high-speed shearer, and mechanically shear at a rotational speed of 2000 rpm / min for 90 minutes; finally cool down to 130°C and place it for 40 minutes to prepare Obtaining the modified asphalt described in the present invention to obtain the modified asphalt described in the present invention.

[0039] Test the penetration according to GB / T0604-2000, test the softening point according to GB / T0606-2000, test the ductility accordi...

example 2

[0042] 1. Formula according to the mass ratio:

[0043] Base bitumen 100 kg

[0044] Infusion bag film 7kg

[0045] Nano montmorillonite 2kg

[0046] PP-g-(GMA-co-St) 2kg

[0047] 2. Preparation

[0048] Take base asphalt and heat and melt, keep the temperature at 210°C, add compatibilizer POE-g-MAH, and manually stir for 15 minutes; then add discarded disposable multi-layer co-extruded infusion bag film fragments, and manually stir for 10 minutes; then add nano-montmorillonite soil, the mixture was sent to a high-speed shearing machine, and mechanically sheared at a speed of 6000 rpm / min for 30 minutes; finally, the temperature was lowered to 100°C and left for 60 minutes to obtain the modified asphalt of the present invention.

[0049] Test the penetration according to GB / T0604-2000, test the softening point according to GB / T0606-2000, test the ductility according to GB / T0605-1993, use the AR-2000 rotational rheometer to test the complex viscosity at 65°C, this example ...

example 3

[0052] 1. Formula according to the mass ratio:

[0053] Base bitumen 100 kg

[0054] Infusion bag film 9kg

[0055] Nano montmorillonite 2kg

[0056] POE-g-MAH 1.5 kg

[0057] 2. Preparation

[0058] Take base asphalt and heat it to melt, keep the temperature at 190°C, add compatibilizer POE-g-MAH, mechanically shear at 400 rpm / min for 25 minutes; then add discarded disposable multi-layer co-extruded infusion bag film fragments, 100 Mechanically shear at a rotational speed of rpm / min for 25 minutes; then add nano-montmorillonite, send the mixture into a high-speed shearing machine, and mechanically shear at a rotational speed of 4000 rpm / min for 70 minutes; finally cool down to 100°C, place for 30 minutes, and Obtain the modified bitumen described in the present invention.

[0059] Test the penetration according to GB / T0604-2000, test the softening point according to GB / T0606-2000, test the ductility according to GB / T0605-1993, use the AR-2000 rotational rheometer to test...

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PUM

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Abstract

The invention relates to a method for preparing modified asphalt by utilizing waste transfusion bag film in one step. The invention adopts the technical scheme that 1, the modified asphalt comprises the following compositions in parts by mass: 100 parts of base asphalt, 2 to 60 parts of transfusion bag film, 1 to 10 parts of nano montmorillonoid and 1 to 10.2 parts of a compatilizer. The base asphalt is heated and molten, the compatilizer is added in the base asphalt to be mechanically sheared at a high rotation speed or manually stirred; then the transfusion bag film fragments are added to be mechanically sheared at a high rotation speed; and the nano montmorillonoid is added to be mechanically sheared at a high rotation speed, the waste recycled disposable multilayer coextrusion transfusion bag film is enabled to be used as the modifier, and the base asphalt is modified by adopting a one-step technology. The prepared modified asphalt is low in cost and high in comprehensive performance, the high temperature resistance is good, and a reliable way for comprehensively utilizing the medical waste can be provided.

Description

technical field [0001] The invention belongs to the technical field of building materials, and relates to the preparation of a modified asphalt, in particular to a method for preparing the modified asphalt in one-step composite modification by using discarded multi-layer co-extruded transfusion bag film. technical background [0002] Multi-layer co-extruded film infusion bag is a new type of medical packaging material that entered our country in the 1990s. It has the following advantages: 1) Wide application range - due to the good heat sealing performance of the membrane material, it is suitable for a variety of filling equipment, such as electrolyte infusion, nutrient infusion and therapeutic infusion, etc. 2) Safe and non-toxic - membrane material Using inert materials, it has good barrier performance to water vapor, oxygen, and nitrogen. It does not need to add air during injection, and directly uses atmospheric compression bag body to eliminate plunger and air pollu...

Claims

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Application Information

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IPC IPC(8): C08L95/00C08L23/06C08L23/12C08L67/00C08L51/06C08K3/34C08K9/04
Inventor 夏新曙陈庆华钟韬应祎钱庆荣肖荔人李欣萍许兢黄宝铨
Owner FUJIAN NORMAL UNIV