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Foaming agent for producing polyurethane foamed plastic

A technology of foam plastics and blowing agents, which is applied in the field of foaming agents produced by polyurethane foam plastics, and achieves the effect of low cost

Inactive Publication Date: 2011-06-15
胥建中
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But it is still destructive to the ozone layer, so it is also facing the situation of being eliminated

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] Accurately weigh 45.6kg of vegetable oil, 2.8kg of catalyst, 23.5kg of flame retardant, 35.2kg of acetone, and 2.5kg of water, wherein the vegetable oil is soybean oil and rapeseed oil, the catalyst is triethylamine and dimethylethanolamine, and the flame retardant is Dimethyl methylphosphonate and dichloromethane, mixing soybean oil and rapeseed oil in the first reactor, then adding acetone, dimethyl methylphosphonate and dichloromethane into the second reactor, and then transferring Add triethylamine, dimethylethanolamine and water into the third reactor to carry out polymerization reaction to obtain the finished product.

Embodiment 2

[0015] Accurately weigh 32.1kg of vegetable oil, 2.6kg of catalyst, 12.8kg of flame retardant, 42.5kg of acetone, and 3.1kg of water, wherein the vegetable oil is soybean oil and peanut oil, the catalyst is triethylamine and triethylenediamine, and the flame retardant is formazan dimethyl phosphonate and methylene chloride, soybean oil and peanut oil are mixed in the first reactor, then added to the second reactor to add acetone, dimethyl methyl phosphonate and methylene chloride, and then transferred to the third reactor Add triethylamine, triethylenediamine and water to the reactor for polymerization to obtain the finished product.

Embodiment 3

[0017] Accurately weigh 25.6kg of vegetable oil, 2.4kg of catalyst, 8.5kg of flame retardant, 48.1kg of acetone, and 3.4kg of water, wherein the vegetable oil is palm oil and peanut oil, the catalyst is triethylenediamine and dimethylethanolamine, and the flame retardant is Dimethyl methylphosphonate and dichloromethane, palm oil and peanut oil are mixed in the first reactor, and then added to the second reactor to add acetone, dimethyl methylphosphonate and dichloromethane, and then transferred to the second reactor Add triethylenediamine, dimethylethanolamine and water to the three reactors to carry out polymerization reaction to obtain the finished product.

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PUM

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Abstract

The invention relates to a foaming agent for producing a polyurethane foamed plastic. The foaming agent is characterized by comprising the following components in part by weight: 25.6 to 45.6 parts of vegetable oil, 2.4 to 2.8 parts of catalyst, 8.5 to 23.5 parts of fire retardant, 25.2 to 48.2 parts of acetone and 2.4 to 3.4 parts of water. The foaming agent has the characteristics that: no toxicity and no harm are caused; the ozone layer is not damaged; production equipment and production process are not required to be replaced; and the cost is lower than that of other substitutes.

Description

technical field [0001] The invention relates to the technical field of foaming agents, in particular to a foaming agent used in the production of polyurethane foam plastics. Background technique [0002] Polyurethane (PU for short) has excellent properties and is widely used in electromechanical, marine, aviation, vehicle, civil engineering, light industry, and textile sectors. It has become one of the fastest-growing synthetic materials in the past decade, with an annual growth rate of 7% or so. PU foam is the main variety of PU resin, accounting for about 70% of its total. [0003] Blowing agent is the most important additive in PU foam plastics. The type and quantity of blowing agent have a direct impact on the physical and mechanical properties, foam density, and temperature resistance of PU foam. As a physical blowing agent, trichlorofluoromethane was widely used in the production of polyurethane foam, but because it would destroy the ozone layer, trichlorofluorometha...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J9/04C08L75/04C08K5/00C08K5/5333C08K5/02
Inventor 胥建中
Owner 胥建中