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Preparation method of foam plastic for solar water heater

A technology of solar water heaters and foam plastics, applied in the field of foam plastics, can solve the problems of long demoulding time, increased cost, waste of electric energy, etc., and achieve improved thermal insulation performance, waterproof and impermeable performance, wide application fields, and strong corrosion resistance. Effect

Inactive Publication Date: 2019-03-19
安徽兆拓新能源科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The biggest shortcoming of rigid foamed plastics in the prior art is that the average core density is high, at 35~40Kg / m 3 , and the high average core density will lead to the deficiencies in the following three aspects: First, the consumption of raw materials such as polyurethane rigid foam composites and isocyanates for the production of foamed plastics is large, which not only causes unreasonable waste of raw materials, but also It leads to an ineffective increase in cost; the second is that the high average core density will produce high thermal conductivity, so that the foamed foam has poor thermal insulation performance and serious waste of electric energy; Causes the problem of long demoulding time, affects production efficiency, and restricts production capacity
The invention uses rice husks to prepare polyurethane foams, which improves the utilization rate of rice husks and reduces the production cost of polyurethane foams; this kind of polyurethane foams has better buffering energy absorption performance and thermal insulation performance, but its compressive strength is relatively low. Poor, it is difficult to meet the requirements when applied to solar water heaters

Method used

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  • Preparation method of foam plastic for solar water heater
  • Preparation method of foam plastic for solar water heater
  • Preparation method of foam plastic for solar water heater

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] This embodiment relates to a kind of foamed plastics for solar water heaters, which is composed of the following raw materials in parts by weight:

[0049] 82 parts of combined polyols;

[0050] 87 parts of combined isocyanates;

[0051] 8 parts of polyethersulfone resin superfine powder;

[0052] Sea pumice powder 7 parts;

[0053] 5 parts of seaweed charcoal fiber;

[0054] 3 parts of dipropylene glycol;

[0055] 1 part of MPS emulsion;

[0056] 10 parts of pearlite;

[0057] 0.9 part of sodium dioctyl sulfosuccinate;

[0058] Butanone 2 parts;

[0059] 1.5 parts of trihydroxymethyl phosphine oxide;

[0060] 1 part foaming agent;

[0061] 0.6 parts of coupling agent;

[0062] 0.8 parts of crosslinking agent;

[0063] Catalyst 0.3 parts.

[0064] The selection and preparation of some raw materials in the present embodiment are shown in Table 1 below:

[0065] Table 1

[0066]

[0067]

[0068] The preparation method of foamed plastics generally carr...

Embodiment 2

[0074] This embodiment relates to a kind of foamed plastics for solar water heaters, which is composed of the following raw materials in parts by weight:

[0075] 88 parts of combined polyols;

[0076] 94 parts of combined isocyanates;

[0077] 9 parts of polyethersulfone resin superfine powder;

[0078] Sea pumice powder 9 parts;

[0079] 6 parts of seaweed charcoal fiber;

[0080] 4 parts of dipropylene glycol;

[0081] 1.5 parts of MPS emulsion;

[0082] 13 parts of pearlite;

[0083] 1.1 parts of sodium dioctyl sulfosuccinate;

[0084] Butanone 3 parts;

[0085] 2 parts of trihydroxymethyl phosphine oxide;

[0086] 1.2 parts of blowing agent;

[0087] 0.8 parts of coupling agent;

[0088] 1 part of cross-linking aid;

[0089] Catalyst 0.75 parts.

[0090] The selection and preparation of some raw materials in this embodiment are shown in Table 2 below:

[0091] Table 2

[0092]

[0093] The preparation method of foamed plastics generally carries out accord...

Embodiment 3

[0099] This embodiment relates to a kind of foamed plastics for solar water heaters, which is composed of the following raw materials in parts by weight:

[0100] 94 parts of combined polyols;

[0101] 101 parts of combined isocyanates;

[0102] 10 parts of polyethersulfone resin superfine powder;

[0103] Sea pumice powder 11 parts;

[0104] 7 parts of seaweed charcoal fiber;

[0105] 5 parts of dipropylene glycol;

[0106] 2 parts of MPS emulsion;

[0107] 15 parts of pearl sand;

[0108] 1.3 parts of sodium dioctyl sulfosuccinate;

[0109] Butanone 3.5 parts;

[0110] 2.5 parts of trihydroxymethyl phosphorus oxide;

[0111] 1.5 parts of blowing agent;

[0112] 1 part of coupling agent;

[0113] 1.2 parts of crosslinking agent;

[0114] Catalyst 1.2 parts.

[0115] The selection and preparation of some raw materials in the present embodiment are shown in Table 3 below: Table 3

[0116]

[0117] The preparation method of foamed plastics generally carries out a...

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Abstract

The invention discloses a preparation method of foam plastic for a solar water heater and relates to the technical field of foam plastics. The preparation method includes the steps of 1) weighing a combination polyol, a combination isocyanate, polyether sulfone resin superfine powder, sepiolite powder, algal carbon fiber, dipropylene glycol, MPS (modified polyethoxylated silicone) emulsion, perlite, dioctyl sodium sulfosuccinate, butanone, tris(hydroxymethyl)phosphine oxide, a foaming agent, a coupling agent, a crosslinking aid, and a catalyst; 2) subjecting perlite to surface treatment; 3) mixing; 4) curing. The foam plastic prepared herein has good mechanical strength, thermal insulation, water repellence and dimensional stability, is well applicable and long in service life and has a good market prospect.

Description

technical field [0001] The invention relates to the technical field of foam plastics, in particular to a preparation method of foam plastics for solar water heaters. Background technique [0002] Polyurethane foam is made of isocyanate and hydroxyl compound through polymerization and foaming. According to its hardness, it can be divided into two types: soft and hard. As known in the industry, polyurethane rigid foam is widely used in water heaters, refrigerators, pipes and buildings, etc., and plays the role of heat insulation and sound resistance, while polyurethane rigid foam is formed by the reaction of polyurethane rigid foam composite material and isocyanate People are also used to refer to polyurethane rigid foam as polyurethane foam or polymer synthetic material. The biggest shortcoming of rigid foamed plastics in the prior art is that the average core density is high, at 35~40Kg / m 3 , and the high average core density will lead to the deficiencies in the following ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J9/14C08L75/04C08G18/40C08G18/42C08G18/48C08K13/06C08K9/02C08K3/34C08K7/06C08K5/5397C08L81/06
CPCC08G18/4018C08G18/4208C08G18/4829C08G18/4854C08J9/0033C08J9/0038C08J9/0066C08J9/009C08J9/0095C08J9/141C08J9/144C08J9/146C08J2203/14C08J2203/142C08J2203/202C08J2375/04
Inventor 陆志鹏
Owner 安徽兆拓新能源科技有限公司
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