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Production method of heat-insulating layer material for plastic pipes

A technology for plastic pipes and production methods, which is applied in the field of polyurethane material processing, can solve the problems of poor material performance such as thermal insulation and strength, and achieve the effects of easy promotion, simple process, and good mechanical quality

Inactive Publication Date: 2019-06-21
张宏春
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the specific use, it is found that the insulation and strength of the material produced by this method are not very good, and the quality needs to be further enhanced.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A method for manufacturing an insulating layer material for plastic pipes includes the following steps:

[0029] (1) Preparation of strengthening additives:

[0030] a. Put the attapulgite clay into the calcining furnace for high-temperature calcination, take it out after 1h, and then dry it for use after pickling, alkali washing, and deionized water washing;

[0031] b. Put the attapulgite treated by operation a into the electron beam irradiation box for irradiation treatment, and take it out after 10 minutes for use;

[0032] c. Put the soybean starch into a drying box for 2 hours, then mix it with anhydrous dimethyl sulfoxide in a weight-to-volume ratio of 1g:10ml and put it into the mixing tank, stir and dissolve to obtain mixed solution A spare;

[0033] d. Mix polycaprolactone and anhydrous dimethyl sulfoxide according to a weight-to-volume ratio of 1g:13ml and put them into a mixing tank, stir and dissolve to obtain mixed solution B for use;

[0034] e. Add the mixed solut...

Embodiment 2

[0048] A method for manufacturing an insulating layer material for plastic pipes includes the following steps:

[0049] (1) Preparation of strengthening additives:

[0050] a. Put the attapulgite into the calcination furnace for high-temperature calcination, take it out after 1.3h, and then dry it after pickling, alkali washing, and deionized water washing;

[0051] b. Put the attapulgite treated by operation a into the electron beam irradiation box for irradiation treatment, and take it out for use after 12 minutes;

[0052] c. Put the soybean starch into a drying box for 2.4 hours, then mix it with anhydrous dimethyl sulfoxide according to the weight-to-volume ratio of 1g:11ml and put it into the mixing tank, stir and dissolve to obtain a mixed solution A spare

[0053] d. Mix polycaprolactone and anhydrous dimethyl sulfoxide according to a weight-to-volume ratio of 1g:14ml and put them into a stirring tank, stir and dissolve to obtain mixed solution B for use;

[0054] e. Add the mix...

Embodiment 3

[0068] A method for manufacturing an insulating layer material for plastic pipes includes the following steps:

[0069] (1) Preparation of strengthening additives:

[0070] a. Put the attapulgite into the calcination furnace for high-temperature calcination, take it out after 1.5h, and then dry it after pickling, alkali washing, and deionized water washing;

[0071] b. Put the attapulgite treated by operation a into the electron beam irradiation box for irradiation treatment, and take it out for use after 15 minutes;

[0072] c. Put the soybean starch into a drying box for 2.5 hours, then mix it with anhydrous dimethyl sulfoxide according to a weight-volume ratio of 1g:12ml and put it into the mixing tank, stir and dissolve to obtain a mixed solution A spare

[0073] d. Mix polycaprolactone and anhydrous dimethyl sulfoxide according to a weight-to-volume ratio of 1g:15ml and put them into the mixing tank, stir and dissolve to obtain mixed solution B for use;

[0074] e. Add the mixed so...

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Abstract

The invention discloses a production method of a heat-insulating layer material for plastic pipes. The production method comprises the following steps: (1), preparing a reinforcing additive; (2), preparing a polyurethane recycled solution; (3), weighing reaction materials; (4), mixing and foaming. The invention provides the production method of the heat-insulating layer material for the plastic pipes. According to the preparation method, a technology is simple, popularization is convenient, waste rigid polyurethane foam plastic can be reasonably recycled, and the finally produced heat-insulating material has good mechanical quality, good heat-insulating performance and great production and application values.

Description

Technical field [0001] The invention belongs to the technical field of polyurethane material processing and treatment, and in particular relates to a method for manufacturing an insulating layer material for plastic pipes. Background technique [0002] With the continuous improvement of people's awareness of environmental protection, especially in today's sustainable development, the realization of rational use of resources has been mentioned as an important strategic height. Rigid polyurethane foam is a thermosetting material with a three-dimensional network structure. Because of its excellent performance, it has been widely used, resulting in waste rigid polyurethane foams that cause environmental pollution. One of the traditional treatment methods is soil burial and incineration. No matter which method it is, it pollutes the environment and wastes resources. If waste polyurethane foam is recycled and reused, environmental pollution can be reduced, resource recycling and gree...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L75/04C08K9/00C08K3/34C08K9/04C08J9/10C08G18/42C08G18/48B29C44/18
Inventor 张宏春
Owner 张宏春