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Low-temperature resistant high-strength universal polyurethane elastomer pouring material for ground laying and preparing method thereof

A polyurethane elastomer and pouring material technology, which is applied in pavements, roads, roads, etc., can solve problems such as brittle cracks, site brittle cracks, and inability to use

Inactive Publication Date: 2004-09-22
孙贤育
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The main problem of this material is that the main mechanical properties under normal temperature conditions, such as the elongation at break is only 105%, barely reaching the national standard (GB / T14833-93)
However, at low temperatures, such as -20°C--30°C, it is more brittle and cracked. After one or two severe winters, the site will be brittle and broken in many places and cannot be used, not to mention that it can withstand gravity shoveling. Mechanical strength required for rolling

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0068] Example 1 Glue for laying ground with low hardness

[0069] 1) Preparation of component A

[0070] Weigh 130kg of PTG2000, 97kg of PTG1000, 194kg of N220, 146kg of N210, and 121kg of DOP into the reactor, stir and vacuum dehydrate at 80-85°C for 2 hours, fill with nitrogen to return to normal pressure, cool to 45°C, and under nitrogen protection , then add 312kg of MDI-50, react at 80-85°C for 2 hours, then cool to 50°C, measure and weigh, put it into an iron drum and seal it for use.

[0071] 2) Preparation of component B

[0072] Stir 36kg of pigment iron oxide red and 380kg of chlorinated paraffin in a stirring tank evenly and grind into a color paste through colloidal grinding, then add MOCA 22.5kg, N220 40kg, N330 100kg, castor oil 40kg and solid material MOCA 22.5kg, kaolin 124.5kg, talc powder 250kg, antioxidant 1010 2kg, anti-ultraviolet agent UV-327 2kg and antibacterial agent 8-hydroxyquinoline copper 3kg into the stirring tank, stir them together, and use t...

Embodiment 2

[0076] Embodiment 2 Low-hardness site laying glue

[0077] (1) Preparation of component A

[0078] Weigh 250kg of Ng215, 214kg of N220, 160kg of N210 and 133kg of chlorinated paraffin into the reaction kettle, stir evenly at 80-90°C, vacuum dehydrate for 2 hours, fill with nitrogen to return to normal pressure, cool to 45°C, Under protection, add TDI 242kg again, react at 80-85°C for 2 hours under nitrogen protection, cool to 50°C, under nitrogen protection, measure and put it into an iron drum and seal it for use.

[0079] (2) Preparation of component B

[0080] Mix 36kg of pigment chromium oxide green and 380kg of chlorinated paraffin in a stirring tank, stir evenly, and grind into a color paste through colloidal grinding, then add MOCA 19kg, N220 40kg, N330 100kg, castor oil 40kg, and add solid materials while stirring 19kg of MOCA, 126kg of kaolin, 252kg of talcum powder, 2kg of antioxidant 1010, 2kg of anti-ultraviolet agent UV-327 and 3kg of antibacterial agent 8-hydro...

Embodiment 3

[0083] Embodiment 3. Glue for laying high-hardness sites:

[0084] (1) Group A and preparation: Weigh PTG2000 137kg, PTG1000 103kg, N220 206kg, N210 155kg and chlorinated paraffin 86kg, add to the reaction kettle, stir evenly at 80-90°C, vacuum dehydrate for 2 hours, fill Nitrogen returns to normal pressure, after cooling to 45°C, add TDI 313kg, react for 2 hours under nitrogen protection and 80-85°C, cool to 50°C, measure and weigh under nitrogen protection, put it in an iron drum and seal it for waiting use.

[0085] (2) Preparation of component B:

[0086] Add 35kg of pigment iron oxide red and 380kg of chlorinated paraffin into the stirring tank, stir evenly, and after colloidal grinding into a color paste, then add N220 40kg, N330 100kg, castor oil 40kg, continue to add solid material MOCA while stirring 55kg, kaolin 110kg, talcum powder 220kg and antioxidant 1010 2kg, anti-ultraviolet agent uv-327 2kg, antibacterial agent 8 hydroxyquinoline copper 2kg in the stirring t...

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Abstract

A low temp-resistant high-strength universal pouring material of polyurethane elastomer laid on the ground surface is disclosed. During its preparing process, the new monomers, polytetrahydrofuran diol and tetrafuran-epoxy propane copolymer diol, are used to react on diisocyanate, and the cross-linking agent, filler and catalyst are newly designed. Its advantages are high versatility, high strength and high resistance to low temp.

Description

technical field [0001] The invention relates to polymer materials, in particular to polyurethane elastomer site laying pouring materials. Background technique [0002] With the rapid development of my country's economy, polyurethane elastomer site laying castable materials have been widely used in the laying of electronic instruments, home appliances, IT product manufacturing workshops and warehouses, outdoor sports venues, kindergarten activity venues, etc. , put forward new requirements for site paving materials. If it can still maintain high-strength mechanical properties at low temperatures, it can withstand the rolling of gravity forklifts on the above-mentioned warehouse site with high elasticity, high hardness, and paving materials with stronger mechanical properties. What is generally used now is the material polymerization system adopted by the Chinese invention patent application publication number CN1033639A, that is, the TDI (toluene diisocyanate)-PPG (hydroxyl p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L75/04E01C13/06
Inventor 孙贤育
Owner 孙贤育
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