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Zero-solvent polyurethane closed silane coupling agent

A primer and polyurethane technology, which is applied in the field of polyurethane, can solve problems such as inconsistent environmental protection policies, difficult construction, and volatilization of organic solvents, and achieve the effects of excellent environmental protection, excellent adhesion and permeability

Active Publication Date: 2018-07-06
山东扬名新材料技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The polymer synthesized by polyether and diphenylmethane diisocyanate (MDI-50) (excess MDI-50) can form a dense and waterproof coating film, which meets the conditions for a closed primer, but due to its high viscosity, it is difficult to apply difficulty
[0006] At present, most polyurethane primers are solvent-based products, with a solvent content of 40-50%. During the curing process of the primer, a large amount of organic solvents volatilize into the atmosphere, which leads to inconsistency with the environmental protection policy advocated by the state. Therefore, it is urgent to develop a solvent-free polyurethane primer.

Method used

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  • Zero-solvent polyurethane closed silane coupling agent
  • Zero-solvent polyurethane closed silane coupling agent
  • Zero-solvent polyurethane closed silane coupling agent

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Product formula and processing technology:

[0024] product ingredients

[0025] raw material name

Polyether 3050

palm oil

Trimethylolpropane

Dispersant YB201

Antioxidant Auxiliary B900

MDI-50

CDMDI-100L

Mass(Kg)

21.10

18.80

0.47

0.21

0.72

46.90

11.80

[0026] Product process:

[0027] 1. Add polyether 3050 (polyoxypropylene ether triol 3050), palm oil, trimethylolpropane, dispersant YB201 and antioxidant additive B900 into the reactor, at 120 degrees Celsius and -0.09MPA , vacuuming for 2 hours;

[0028] 2. Cool down to 60 degrees Celsius, add MDI-50( MDI-50 is a mixture of 2,4'-diphenylmethane diisocyanate and 4,4'-diphenylmethane diisocyanate, which is a colorless to pink liquid at room temperature) and CDMDI-100L( CDMDI-100L is carbodiimide modified 4,4'diphenylmethane diisocyanate-MDI), and stirred for 30 minutes, heated to 75-80 degrees Celsius, and kept for 2 hours;

[0029] 3. When ...

Embodiment 2

[0036] Product formula and processing technology:

[0037] product ingredients

[0038] raw material name

Polyether 3050

palm oil

Trimethylolpropane

Dispersant YB201

Antioxidant Auxiliary B900

MDI-50

CDMDI-100L

Mass(Kg)

19.00

16.00

0.30

0.15

0.60

42.00

10.00

[0039] Product process:

[0040] 1. Add polyether 3050 (polyoxypropylene ether triol 3050), palm oil, trimethylolpropane, dispersant YB201 and antioxidant additive B900 into the reactor, at 120 degrees Celsius and -0.09MPA , vacuuming for 2 hours;

[0041] 2. Cool down to 60 degrees Celsius, add MDI-50( MDI-50 is a mixture of 2,4'-diphenylmethane diisocyanate and 4,4'-diphenylmethane diisocyanate, which is a colorless to pink liquid at room temperature) and CDMDI-100L( CDMDI-100L is carbodiimide modified 4,4'diphenylmethane diisocyanate-MDI), and stirred for 30 minutes, heated to 75-80 degrees Celsius, and kept for 2 hours;

[0042] 3. When ...

Embodiment 3

[0048] Product formula and processing technology:

[0049] product ingredients

[0050] raw material name

Polyether 3050

palm oil

Trimethylolpropane

Dispersant YB201

Antioxidant Auxiliary B900

MDI-50

CDMDI-100L

Mass(Kg)

23.00

21.00

0.70

0.25

0.80

51.00

13.00

[0051] Product process:

[0052] 1. Add polyether 3050 (polyoxypropylene ether triol 3050), palm oil, trimethylolpropane, dispersant YB201 and antioxidant additive B900 into the reactor, at 120 degrees Celsius and -0.09MPA , vacuuming for 2 hours;

[0053] 2. Cool down to 60 degrees Celsius, add MDI-50( MDI-50 is a mixture of 2,4'-diphenylmethane diisocyanate and 4,4'-diphenylmethane diisocyanate, which is a colorless to pink liquid at room temperature) and CDMDI-100L( CDMDI-100L is carbodiimide modified 4,4'diphenylmethane diisocyanate-MDI), and stirred for 30 minutes, heated to 75-80 degrees Celsius, and kept for 2 hours;

[0054] 3. When ...

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PUM

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Abstract

The invention relates to a zero-solvent polyurethane closed silane coupling agent and a preparation method thereof, and belongs to the field of polyurethane. The silane coupling agent comprises or isprepared from the following components: polyether 3050 (polyoxypropylene trihydric alcohol 3050), palm oil, trimethylolpropane, a dispersing agent, an antioxidant, MDI-50 and CDMDI-100L. Through reasonable material selection and appropriate proportioning, the silane coupling agent is a zero-solvent polyurethane silane coupling agent which completely meets the environment-friendly requirement and is high in adhesive force.

Description

technical field [0001] The invention relates to a synthesis method of a zero-solvent polyurethane sealing primer, which belongs to the field of polyurethane. technical background [0002] Polyurethane, also known as polyurethane, is a general term for macromolecular compounds containing repeated carbamate groups on the main chain. It is usually polymerized from organic diisocyanate or polyisocyanate and dihydroxy or polyhydroxy compound. Polyurethane has a wide range of uses, for example, it can replace rubber, plastic and nylon, and is used in schools, airports, hotels, residential quarters, and landscaping. [0003] However, although polyurethane itself has high tensile strength, when it is applied to substrates with impermeable bonding surfaces, such as: cement-based, terrazzo, PVC substrates, etc., its bond strength is often lower than desired The safety index or structural index of the polyurethane material usually peels off from the substrate. Therefore, when using ...

Claims

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Application Information

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IPC IPC(8): C09D175/08C09D191/00C09D5/00C09D7/48C08G18/66C08G18/48C08G18/32
CPCC08G18/3206C08G18/48C08G18/6677C09D5/002C09D175/08C08L91/00
Inventor 李自升韦尚金
Owner 山东扬名新材料技术有限公司
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