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Anti-flaming anti-static polyurethane prepolymer and preparation method thereof

A technology of polyurethane and unglue, which is applied in the direction of polyurea/polyurethane adhesives, adhesives, adhesive types, etc., to achieve strong adhesion, prevent dumping damage, and good stickiness

Inactive Publication Date: 2017-05-31
SHENZHEN LIXIN LUNAN RUBBER & PLASTIC HARDWARE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The invention proposes a flame-retardant and antistatic polyurethane prepolymer, which solves the problem that the prepolymer in the prior art does not have good viscosity, strong adhesion, good elasticity, stable surface hardness, environmental protection and durability. , Flame retardant, anti-static, not easy to age, no chip, easy to clean, oil resistance, wear resistance and solvent corrosion resistance and other defects

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] A flame-retardant antistatic polyurethane prepolymer 1, comprising the following components in parts by weight: 25 parts of polyol 1000; 20 parts of polyol 2000; 15 parts of toluene diisocyanate; Combustion agent; 3 parts of vulcanizing agent; 10 parts of antistatic agent.

[0030] The preparation method of described flame-retardant antistatic polyurethane prepolymer 1 comprises the following steps:

[0031] Step 1, first add the weighed polyol 1000 into the reactor and heat it to 40°C, and then raise the temperature to 55°C in two stages;

[0032] Step 2, then add the weighed polyol 2000 into the reaction kettle at a constant temperature of 60°C and stir for 25 minutes;

[0033] Step 3, add weighed toluene diisocyanate, and then raise the temperature to 75°C and stir for 1 hour;

[0034] Step 4, finally lower the temperature to 60°C and add the weighed flame retardant, vulcanizing agent and antistatic agent to stir for 0.3 hours, then raise the temperature to 75°C an...

Embodiment 2

[0037] A flame retardant and antistatic polyurethane prepolymer, comprising the following components in parts by weight: 30 parts of polyol 1000; 25 parts of polyol 2000; 20 parts of toluene diisocyanate; 10 parts of flame retardant agent; 4 parts of vulcanizing agent; 11 parts of antistatic agent.

[0038] The preparation method of described flame-retardant antistatic polyurethane prepolymer, comprises the following steps:

[0039] Step 1, first add the weighed polyol 1000 into the reactor and heat it to 45°C, and then raise the temperature to 60°C in two stages;

[0040] Step 2, then add the weighed polyol 2000 into the reaction kettle at a constant temperature of 60°C and stir for 30 minutes;

[0041] Step 3, add weighed toluene diisocyanate, then heat up to 80°C and stir for 1.5 hours;

[0042] Step 4, finally lower the temperature to 65°C, add the weighed flame retardant, vulcanizing agent and antistatic agent and stir for 0.5 hours, then raise the temperature to 80°C a...

Embodiment 3

[0045] A flame retardant and antistatic polyurethane prepolymer 3, comprising the following components in parts by weight: 35 parts of polyol 1000; 30 parts of polyol 2000; 25 parts of toluene diisocyanate; 12 parts of polyol 2000; Combustion agent; 5 parts of vulcanizing agent; 12 parts of antistatic agent.

[0046] The preparation method of the flame-retardant antistatic polyurethane prepolymer 3 comprises the following steps:

[0047] Step 1, first add the weighed polyol 1000 into the reactor and heat it to 50°C, and then raise the temperature to 65°C in two stages;

[0048] Step 2, then add the weighed polyol 2000 into the reaction kettle at a constant temperature of 60°C and stir for 35 minutes;

[0049]Step 3, add weighed toluene diisocyanate, then heat up to 85°C and stir for 2 hours;

[0050] Step 4, finally lower the temperature to 70°C, add the weighed flame retardant, vulcanizing agent and antistatic agent and stir for 0.7 hours, then raise the temperature to 85°C...

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Abstract

The invention provides anti-flaming anti-static polyurethane prepolymer which is prepared from the following ingredients in parts by weight: 25 to 35 parts of polyhydric alcohols 1000, 20 to 30 parts of polyhydric alcohols 2000, 15 to 25 parts of toluene diisocynate, 8 to 12 parts of flame retardant, 3 to 5 parts of vulcanizing agent and 10 to 12 parts of antistatic agent. The anti-flaming anti-static polyurethane prepolymer disclosed by the invention does not contain any toxic and harmful substance and other filler materials and is a waterproof and oil-proof environment-friendly anti-static novel material; a hardness range is 0A to 98A; the anti-flaming anti-static polyurethane prepolymer has the excellent characteristics of good surface viscosity, strong adhesive power, good elasticity, stable surface hardness, environmental friendliness, durability, flame resistance, static resistance, difficulty in ageing, no scrap, easiness to clean, oil resistance, wear resistance, solvent corrosion resistance, non-decreasing use performance for a long time and the like. The invention further provides a preparation method of the anti-flaming anti-static polyurethane prepolymer, and the preparation method is simple and easy to implement and has high stability and high production efficiency.

Description

technical field [0001] The invention relates to a flame-retardant and antistatic polyurethane prepolymer and a preparation method thereof. Background technique [0002] Uniglue, also known as polyurethane PU elastomer, is a kind of rubber with good strength and small compression deformation. A new type of material between plastic and rubber, which has the rigidity of plastic and the elasticity of rubber. It is currently widely used to replace rubber. The preparation process of the unglue in the prior art is complicated and the stability is weak. The unglue prepolymer in the prior art cannot obtain the unglue by simply adding a curing agent, and does not have good viscosity, strong adhesion, Good elasticity, stable surface hardness, environmental protection, durability, flame retardant, anti-static, not easy to age, no chips, easy to clean, oil resistance, wear resistance and solvent corrosion resistance and other characteristics. Contents of the invention [0003] The i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J175/04C09J11/06C08G18/40
CPCC08K2201/017C09J11/06C09J175/04C08K5/521C08K5/42C08K5/053
Inventor 向欢
Owner SHENZHEN LIXIN LUNAN RUBBER & PLASTIC HARDWARE
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