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Polytetrafluoroethylene modified asphalt waterproof coiled material and preparation method thereof

A technology of polytetrafluoroethylene and modified asphalt, which is applied in building insulation materials, building components, buildings, etc., can solve the problems of low tensile strength, poor bonding performance, and poor weather resistance of asphalt, and achieve large friction coefficient and deformation Strong adaptability and wide temperature range

Inactive Publication Date: 2012-11-14
天津市耀新科技发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the low tensile strength of asphalt, poor weather resistance, poor bonding performance, poor aging resistance, poor durability, etc., it is easy to pollute the environment

Method used

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  • Polytetrafluoroethylene modified asphalt waterproof coiled material and preparation method thereof
  • Polytetrafluoroethylene modified asphalt waterproof coiled material and preparation method thereof
  • Polytetrafluoroethylene modified asphalt waterproof coiled material and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Recipe and preparation method:

[0024] 1. Formulation:

[0025]

[0026] 2. Preparation method:

[0027] (1) Measure all the raw materials according to the formula ratio and put them into the high-speed mixer for mixing evenly, then put them into the hopper of the twin-screw extruder, and follow the instructions in the accompanying drawings figure 1 The technical process for the preparation of PTFE modified bitumen waterproofing membrane is extrusion granulation.

[0028] (2) Throw the prepared polytetrafluoroethylene modified bitumen pellets into the barrel of the extruder calendering unit for extrusion and calendering to make polytetrafluoroethylene modified bitumen waterproofing membrane.

[0029] The main properties of the polytetrafluoroethylene modified asphalt waterproof membrane prepared by the present invention:

[0030] serial number

[0031] 4

Embodiment 2

[0033] formula:

[0034]

[0035] Preparation method is identical with embodiment 1

Embodiment 3

[0037]

[0038] Preparation method is identical with embodiment 1

[0039] The measured performance comparison table of three kinds of embodiments

[0040] performance

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Abstract

The invention discloses a polytetrafluoroethylene modified asphalt waterproof coiled material and a preparation method thereof. Petroleum asphalt is used as a base material, then polytetrafluoroethylene, a filler and an auxiliary agent are added, and the above-mentioned materials are subjected to extrusion, calendering and molding so as to prepare the polytetrafluoroethylene modified asphalt waterproof coiled material. The polytetrafluoroethylene modified asphalt waterproof coiled material provided by the invention has a great number of excellent comprehensive economic and technical characteristic indicators such as excellent weatherability, high tensile strength, high elongation percentage, aging resistance, strong adaptability to deformation, a wide temperature adaptation range, strong and high bonding performance, a long service life, no pollution, easy construction and low cost, and can be used in waterproof projects like passenger dedicated line bridge deck concrete, subways, roads, ports and wharfs and large-scale underground projects.

Description

technical field [0001] The invention belongs to the field of waterproof material preparation, and in particular relates to a polytetrafluoroethylene modified asphalt waterproof coiled material and a preparation method thereof. Background technique [0002] Polytetrafluoroethylene (PTFE) is a polymer polymerized from tetrafluoroethylene monomer. It is a transparent or opaque waxy substance similar to PE with a density of 2.2g / cm 3 , The water absorption rate is less than 0.01%. PTFE is known as the "King of Plastics" for its excellent high and low temperature resistance, chemical stability, good electrical insulation, non-adhesion, weather resistance, flame retardancy and good self-lubricating properties. , petroleum, textile, electrical and electronic, medical, machinery and other fields have been widely used. [0003] With the rapid development of highway construction in our country, a large number of high-grade highways are paved and the construction of long-span bridges...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L95/00C08L27/18C08K13/02C08K3/26C08K3/30B29B9/06B29C43/24
Inventor 刘耀俭魏文秀
Owner 天津市耀新科技发展有限公司
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