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Polyurethane acid imide foam material and preparation thereof

A technology for polyurethane imide and foam material, applied in the field of polyurethane imide foam material and its preparation, can solve the problems of lack of modern production mature technology, achieve good thermal stability and flame retardant performance, simple process and easy industrialization Effect

Inactive Publication Date: 2009-01-28
BEIJING RADIATION APPL RES CENT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, at present, in the development and research of polyurethane imide foam, its synthesis, foaming process and related technologies are all in the exploratory stage, and there is still a lack of mature technology for modern production.

Method used

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  • Polyurethane acid imide foam material and preparation thereof
  • Polyurethane acid imide foam material and preparation thereof
  • Polyurethane acid imide foam material and preparation thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Embodiment 1, prepare polyurethane imide foam material

[0025] As shown in Table 2, each component was weighed respectively to prepare sample 1#-sample 6# of polyurethane imide foam material: pyromellitic dianhydride (PDMA) and tris (β-chloroethyl) phosphate (TCEP) is mixed and stirred to form a paste, and then the paste and polyphenyl polymethylene polyisocyanate (PAPI) are added to component B at one time, and after mixing, follow the conventional one-step foaming process. The mixed material is poured into a mold for foaming, matured, and then released from the mold to obtain a polyurethane-imide foam material.

[0026] The consumption list of each component in the table 21#-6# sample

[0027]

[0028] The performance of 3# and 4# polyurethane imide foam material that present embodiment makes is as shown in table 3, and the thermogravity curve that measures by thermogravimetry (TG) is as follows figure 2 shown.

[0029] Table 33# and 4# performance list of sam...

Embodiment 2

[0032] Embodiment 2, prepare polyurethane imide foam material

[0033] Weigh each component respectively according to the consumption shown in table 4, prepare the sample 7#-sample 15# of polyurethane imide foam material: combine pyromellitic dianhydride (PDMA) and tris (beta-chloroethyl) phosphoric acid After the ester (TCEP) is mixed and stirred to form a paste, the paste and polyphenyl polymethylene polyisocyanate (PAPI) are added to component B at one time, and after mixing, follow the conventional one-step foaming process. The mixed material is poured into a mold for foaming, matured, and then released to obtain a polyurethane-imide foam material.

[0034] The dosage list of each component in the table 47#-15# sample

[0035]

[0036] The performance of the polyurethane imide foam material (sample 10#, sample 11# and sample 12#) that present embodiment makes is as shown in table 5, and the thermal weight loss curve measured by thermogravimetric analysis (TG) is as fol...

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Abstract

The invention discloses a foaming material of polyurethane-imide and a preparation method thereof. In the method, after a component A, a component B and a component C are uniformly mixed, a one-trip foaming technique is adopted to carry out preparation and obtain the foaming material of polyurethane-imide, wherein, the component A consists of pyromelliticdianhydride and triguaiacyl ( Beta-chloroethyl) phosphate; the component B includes hydroxyl terminated polysiloxane, PCDL, benzoic anhydride polyester polyols, tributyl amine, the dipropylene glycol liquid of DABCO, water, silicon oil and DMMP; the component C is WDP. The method selects a liquid compound with the effect of a solvent as a special functional addition agent to solve the technical problem of uneven material mixing in the existing preparation method, thus being suitable for the one-trip foaming technique; in addition, the technique is simple and easy to be industrialized. The method can be utilized to prepare the foaming material with excellent thermal stability and flame retardance. The working temperature of the foaming material can achieve more than 150 DEG C; and the oxygen index can reach 30 to 40.

Description

technical field [0001] The invention relates to a polymer foam material and a preparation method thereof, in particular to a polyurethane imide foam material and a preparation method thereof. Background technique [0002] Polyurethane (PU) foam is made of polyether polyol, polyester polyol or other polyol compounds as the main raw material, quantitatively mixed with polyisocyanate, and foamed under the action of foaming agent, catalyst, crosslinking agent, etc. A kind of foam plastic. According to the soft and hard properties of the product, it can be divided into soft foam, rigid foam and semi-rigid foam. Polyurethane foam has excellent characteristics such as light weight, porosity, non-toxicity, not easy to deform, softness, good elasticity, good heat insulation, good air permeability, dustproof, sound absorption, etc. Therefore, the application of polyurethane foam is quite extensive at present. . Soft polyurethane foam is mainly used for various pads and sound-absorb...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G18/65C08G18/66C08G73/10C08L75/04C08K5/521C08G101/00
Inventor 周成飞曾心苗曹巍郭建梅翟彤
Owner BEIJING RADIATION APPL RES CENT
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