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Method for preparing modified asphalt by one-step method using discarded transfusion bag film

A technology of modified asphalt and infusion bags, applied in building components, building insulation materials, buildings, etc., can solve problems such as harming human health, violating the sustainable development of solid waste, waste of "urban mineral" resources, etc. performance, cost reduction

Active Publication Date: 2016-01-06
FUJIAN NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, as a disposable multi-layer co-extruded film infusion bag produced from petroleum resources, direct incineration is a great waste of "urban mineral" resources and violates the principle of sustainable development of comprehensive utilization of solid waste resources
[0004] In 2005, the Ministry of Health's "Notice on Clarifying Issues Related to the Classification of Medical Waste" (Weiban Yifa (2005) No. 292) stipulated that disposable infusion bags (bottles) that are not contaminated by blood, body fluids, and excreta of patients , does not belong to medical waste and does not need to be managed as medical waste, but this kind of waste cannot be used for the original purpose when it is recycled, and it should comply with the principle of not endangering human health when used for other purposes
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 100 kg

[0034] Infusion bag film 4.5 kg

[0035] Nano montmorillonite 2 kg

[0036] POE-g-MAH1.5kg

[0037] 2. Preparation

[0038] Heat and melt the base asphalt, keep the temperature at 170°C, add the compatibilizer POE-g-MAH, and mechanically shear at a speed of 500rpm / min for 5min; then add discarded disposable multi-layer co-extruded infusion bag film fragments, 10 minutes of mechanical shearing at a rotating speed of 1 min; then adding nano-montmorillonite, and sending the mixture into a high-speed shearing machine, and mechanically shearing for 90 minutes at a rotating speed of 2000 rpm / min; Obtain the modified asphalt described in the present invention and prepare 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 according to GB / T0605-1993, and use the AR-2000 ...

example 2

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

[0043] Base bitumen 100 kg

[0044] Infusion bag film 7kg

[0045] Nano montmorillonite 2 kg

[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 9 kg

[0055] Nano montmorillonite 2 kg

[0056] POE-g-MAH1.5 kg

[0057] 2. Preparation

[0058] Heat and melt the base asphalt, keep the temperature at 190°C, add compatibilizer POE-g-MAH, and mechanically shear at a speed of 400rpm / min for 25min; 25 minutes of mechanical shearing at a rotational speed of 1 min; then adding nano-montmorillonite, and sending the mixture into a high-speed shearing machine, and mechanically shearing and processing 70 min at a rotational speed of 4000 rpm / min; Obtain the modified asphalt of 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 the complex viscosity at 65°C, this example The specific data of the prepared modified asphalt are as follows:

[0060] ...

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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 pollution...

Claims

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Application Information

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Patent Type & Authority Patents(China)
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