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Preparation method of ultra-soft polyurethane foam plastics

A technology of foamed plastics and polyurethane, applied in the field of plastics, can solve problems such as unreasonable, insufficient resilience of polyurethane foam products, and difficulty in wide application

Inactive Publication Date: 2016-07-27
SUZHOU YAKE PLASTIC RUBBER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, due to the unreasonable design of the process formula of many flexible polyurethane foams, the polyurethane foam products produced are not good enough in resilience and softness, and cannot meet various needs well, so it is difficult to popularize and apply them on a large scale.

Method used

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  • Preparation method of ultra-soft polyurethane foam plastics

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] The specific preparation method is as follows:

[0018] a) Prepare various materials and weigh them according to the following proportions in parts by weight: 100 parts of polyether polyol, 39.5 parts of toluene diisocyanate, 0.26 parts of catalyst stannous octoate, 0.38 parts of additive triethylenediamine, 5 Parts of softener dichloromethane, 1.2 parts of surfactant silicone oil, 2.8 parts of deionized water.

[0019] b) High-speed mixing treatment, input the weighed reactant polyether polyol and toluene diisocyanate, catalyst stannous octoate, additive triethylenediamine, softener dichloromethane, surfactant silicone oil and deionized water into multiple Premixing is carried out in the interface square tube mixer, and the mixed material enters the mixing head, and is stirred at a high speed of 5500r / min for 6s, and then the stirring is stopped.

[0020] c) Shaping and post-processing, the mixed material prepared in step b) is quickly sent to the reaction device thro...

Embodiment 2

[0022] The specific preparation method is as follows:

[0023] a) Prepare various materials and weigh them according to the following proportions in parts by weight: 100 parts of polyether polyol, 42 parts of toluene diisocyanate, 0.22 parts of catalyst stannous octoate, 0.36 parts of auxiliary agent triethylenediamine, 1 Parts of softener Ortegol310, 1.35 parts of surfactant silicone oil, 3 parts of deionized water.

[0024] b) High-speed mixing treatment, input the weighed reactant polyether polyol and toluene diisocyanate, catalyst stannous octoate, additive triethylenediamine, softener dichloromethane, surfactant silicone oil and deionized water into multiple Premixing is carried out in the interface square tube mixer, and the mixed material enters the mixing head, and is stirred at a high speed of 5500r / min for 8s, and then the stirring is stopped.

[0025] c) Shaping and post-processing, the mixed material prepared in step b) is quickly sent to the reaction device throu...

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Abstract

The invention provides a preparation method of ultra-soft polyurethane foam plastics. The preparation method comprises the following steps: (a) preparing various materials; (b) mixing and stirring at a high speed; (c) sizing and post-treating. The invention discloses the preparation method of the ultra-soft polyurethane foam plastics. The preparation method adopts a unique technological formula, polyurethane is modified by changing the structure of a polyurethane molecular chain, and the prepared polyurethane foam plastics is excellent in resilience, very soft in hand touch and very wide in use.

Description

technical field [0001] The invention relates to a plastic, in particular to a preparation method of a supersoft polyurethane foam, and belongs to the technical field of plastics. Background technique [0002] Plastic is a very important organic synthetic polymer material with a wide range of applications. Plastics are formulated from many materials, among which high molecular polymers, also known as synthetic resins, are the main components of plastics. In addition, in order to improve the performance of plastics, various auxiliary materials must be added to high molecular compounds, such as fillers, extenders, etc. Plasticizers, lubricants, stabilizers, colorants, antistatic agents, etc., can become plastics with good performance. my country is a big producer of plastic raw materials. As one of the pillar industries of the light industry, the plastic industry has always maintained a relatively fast development speed, and at the same time, its economic benefits have also be...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G18/48C08J9/14C08G101/00
CPCC08G18/48C08G2101/00C08J9/145C08J2203/142C08J2375/08
Inventor 刘永清
Owner SUZHOU YAKE PLASTIC RUBBER CO LTD