Silicate modified polyurethane high molecular material and preparation method thereof

A polymer material and polyurethane technology, which is applied to silicate-modified polyurethane polymer material for leakage plugging and its preparation, and the field of coal and rock mass reinforcement, can solve the problem of not being able to reinforce at the same time, the consolidation body having no toughness, and the consolidation Weak body strength and other problems, to achieve the effects of excellent pumpability, good adhesion and good flame retardant performance

Inactive Publication Date: 2013-03-13
SHANDONG INOV NEW MATERIALS CO LTD
View PDF5 Cites 24 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] There have been many studies on commonly used water glass chemical grouting materials, most of which have the advantages of good permeability, non-toxicity, and simple composition. to the role of reinforcement

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Prepare 100 kg of component B: weigh 45 kg of polyphenyl polymethylene polyisocyanate (brand PM200, produced by Yantai Wanhua Polyurethane Co., Ltd.), 50 kg of modified MDI 5412 (produced by Shandong Dongdayi Nuowei Co., Ltd.), Viscosity reducer (propylene carbonate, produced by Shandong Senjie Chemical Co., Ltd.) 5kg, put it into the reaction kettle and stir, stir and mix evenly at room temperature, that is, the qualified product of component B, discharge the material from the reaction kettle and replace it with nitrogen encapsulation.

[0026] Take liquid sodium silicate water glass (component A) and component B according to the volume ratio of A:B=1:1 and use a double-liquid grouting pump to mix and grout to obtain the product.

[0027] The detection product indicators are as follows:

[0028] Consolidated body density: 1280kg / m 3

[0029] Expansion factor: 1.0

[0030] Compressive strength: 55mpa

[0031] Bond strength: 3mpa

Embodiment 2

[0033] Prepare 100 kg of component B materials: weigh 45 kg of polyphenyl polymethylene polyisocyanate A (brand PM200, Yantai Wanhua), 45 kg of modified MDI 5412 (Shandong Dongdayi Nuowei Co., Ltd.), viscosity reducer ( Propylene carbonate, produced by Shandong Senjie Chemical Co., Ltd.) 10kg, put into the reaction kettle and stir, and stir and mix evenly at room temperature, that is, the qualified product of component B, which is discharged from the reaction kettle and packed in barrels for nitrogen displacement packaging.

[0034] Take liquid sodium silicate water glass (component A) and component B according to the volume ratio of A:B=1:1 and use a double-liquid grouting pump to mix and grout to obtain the product.

[0035] The detection product indicators are as follows:

[0036] Consolidated body density: 1280kg / m 3

[0037] Expansion factor: 1.0

[0038] Compressive strength: 50mpa

[0039] Bond strength: 3mpa

Embodiment 3

[0041] Prepare 100 kg of component B: weigh 50 kg of polyphenyl polymethylene polyisocyanate (brand PM200, produced by Yantai Wanhua Polyurethane Co., Ltd.) and 50 kg of modified MDI 5412 (produced by Shandong Dongdayi Nuowei Co., Ltd.) Stir in the reaction kettle, stir and mix evenly at room temperature, and then get the qualified product of component B, discharge the material from the reaction kettle and fill it with nitrogen replacement packaging.

[0042] Take liquid sodium silicate water glass (component A) and component B according to the volume ratio of A:B=1:1, mix and grout with a double-liquid grouting pump to obtain the product.

[0043] The detection product indicators are as follows:

[0044] Consolidated body density: 1280kg / m 3

[0045] Expansion factor: 1.0

[0046] Compressive strength: 45mpa

[0047] Bond strength: 3mpa.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

PropertyMeasurementUnit
densityaaaaaaaaaa
compressive strengthaaaaaaaaaa
compressive strengthaaaaaaaaaa
Login to view more

Abstract

The invention belongs to the field of chemical synthesis, and particularly relates to a silicate modified polyurethane high molecular material for the reinforcing and plugging of coal-rock mass and a preparation method thereof. The silicate modified polyurethane high molecular material consists of a component A and a component B at a volume ratio of 1:1, wherein the component A is liquid sodium silicate water glass; and the component B consists of 40-50 parts of polyaryl polymethylene isocyanate, 40-50 parts of modified MDI and 0-10 parts of viscosity reducer by weight. The preparation method comprises the following steps of: adding the raw materials of the component B into a reaction kettle and stirring uniformly, and performing nitrogen displacement encapsulation; and mixing the component A and the component B and grouting by a double-liquid grouting pump to obtain the product. Through the invention, the product has good flame retardance; the raw material liquid has low viscosity and good permeability in the coal-rock mass; cohesiveness between the consolidating body and the coal-rock mass is good; the silicate modified polyurethane high molecular material is suitable for the quick reinforcing and plugging treatment of the broken coal bed and rock stratum in various coal mines and tunnels in poor ventilation; and the preparation method adopts the pressure grouting of a double-liquid grouting pump, realizes an excellent pumping property, and is convenient to use.

Description

technical field [0001] The invention belongs to the field of chemical synthesis, and in particular relates to a silicate-modified polyurethane polymer material for coal and rock mass reinforcement and plugging and a preparation method thereof. Background technique [0002] In the process of coal mine production, the compressive strength of coal seams and loose surrounding rocks is low, and the broken loose surrounding rock areas and fracture development zones are prone to safety hazards such as roof fall, subsidence, and underground water seepage under the condition of increased dynamic pressure. By injecting polymer reinforcement and plugging materials into the broken coal rock layer, cracks and cracks can be effectively blocked, and the broken coal rock mass can be bonded together to improve the overall supporting force of the coal rock mass, and finally achieve the goal of coal rock reinforcement and plugging. Purpose. [0003] Commonly used coal and rock mass strengthen...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): C08G18/76C08K3/34C08L75/04
Inventor 唐国涛张丽郝德开边宪磊王超
Owner SHANDONG INOV NEW MATERIALS CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap