阅读说明：本技术 一种冷库专用保温板制备工艺及配方 (Preparation process and formula of special insulation board for refrigeration house ) 是由 陆道虎 荆赣 陈召永 于 2020-07-21 设计创作，主要内容包括：本发明提供了一种冷库专用保温板配方,包括：聚苯乙烯泡沫颗粒、可分散乳胶粉、天然乳胶、阻燃剂、发泡剂、泡沫稳定剂、纳米二氧化硅、氢氧化钙、增塑剂、云母粉、成膜剂、色母；具体配方由以下重量的原料制成：聚苯乙烯泡沫颗粒1000kg、可分散乳胶粉8-12kg、天然乳胶8-12kg、阻燃剂18-22kg、发泡剂6-8kg、泡沫稳定剂16-20kg、纳米二氧化硅10-22kg、氢氧化钙20kg、增塑剂4-6kg、云母粉45-55kg、成膜剂60-70kg、色母3kg。本发明在发泡过程中加入纳米二氧化硅,增加其微孔量,使其表面紧密排列的泡孔,降低它的导热系数,从而提高保温板的防火功能。(The invention provides a formula of a special insulation board for a refrigeration house, which comprises the following components: polystyrene foam particles, dispersible latex powder, natural latex, a flame retardant, a foaming agent, a foam stabilizer, nano silicon dioxide, calcium hydroxide, a plasticizer, mica powder, a film forming agent and color master batch; the specific formula is prepared from the following raw materials in parts by weight: 1000kg of polystyrene foam particles, 8-12kg of dispersible latex powder, 8-12kg of natural latex, 18-22kg of flame retardant, 6-8kg of foaming agent, 16-20kg of foam stabilizer, 10-22kg of nano silicon dioxide, 20kg of calcium hydroxide, 4-6kg of plasticizer, 45-55kg of mica powder, 60-70kg of film forming agent and 3kg of color master batch. According to the invention, the nano silicon dioxide is added in the foaming process, so that the micropore amount of the nano silicon dioxide is increased, the cells are tightly arranged on the surface of the nano silicon dioxide, the heat conductivity coefficient of the nano silicon dioxide is reduced, and the fireproof function of the insulation board is improved.)

1. The formula of the insulation board special for the refrigeration house is characterized in that: the method comprises the following steps: polystyrene foam particles, dispersible latex powder, natural latex, a flame retardant, a foaming agent, a foam stabilizer, nano silicon dioxide, calcium hydroxide, a plasticizer, mica powder, a film forming agent and color master batch; the specific formula is prepared from the following raw materials in parts by weight: 1000kg of polystyrene foam particles, 8-12kg of dispersible latex powder, 8-12kg of natural latex, 18-22kg of flame retardant, 6-8kg of foaming agent, 16-20kg of foam stabilizer, 10-22kg of nano silicon dioxide, 20kg of calcium hydroxide, 4-6kg of plasticizer, 45-55kg of mica powder, 60-70kg of film forming agent and 3kg of color master batch.

2. The formula of the insulation board special for the refrigeration house according to claim 1, wherein the formula comprises the following components in percentage by weight: by weight, 1000kg of polystyrene foam particles, 10kg of dispersible latex powder, 10kg of natural latex, 20kg of flame retardant, 7kg of foaming agent, 18kg of foam stabilizer, 16kg of nano-silica, 20kg of calcium hydroxide, 5kg of plasticizer, 50kg of mica powder, 65kg of film forming agent and 3kg of color master batch.

3. The formula of the insulation board special for the refrigeration house according to claim 1, wherein the formula comprises the following components in percentage by weight: the flame retardant is a tungstate inorganic flame retardant.

4. The formula of the insulation board special for the refrigeration house according to claim 1, wherein the formula comprises the following components in percentage by weight: the foaming agent is a fluorine-free aqueous solution.

5. The formula of the insulation board special for the refrigeration house according to claim 1, wherein the formula comprises the following components in percentage by weight: the foam stabilizer is dimethyl silicone oil.

6. The formula of the insulation board special for the refrigeration house according to claim 1, wherein the formula comprises the following components in percentage by weight: the plasticizer is dioctyl phthalate.

7. The formula of the insulation board special for the refrigeration house according to claim 1, wherein the formula comprises the following components in percentage by weight: the film forming agent is one or more of acrylic emulsion, pure lactic acid, phenylpropyl lactic acid and fluorocarbon lactic acid.

8. A preparation method of a special insulation board for a refrigeration house is characterized by comprising the following steps: the method specifically comprises the following steps of,

step 1: placing the polystyrene foam particles into a prefoamer with vapor pressure of 0.25-0.35MPa and preheated to 75-85 ℃ for prefoaming, and curing for 6-7h to obtain prefoamed polystyrene foam particles;

step 2: putting 6-8kg of foaming agent and 60-70 times of water into a foaming machine, and stirring the foaming agent and the pre-foamed polystyrene foam particles together to obtain a foaming raw material;

and step 3: mixing 16-20kg of foam stabilizer and 10-22kg of nano silicon dioxide, preheating at 75-85 ℃ for 45-80min, and cooling to 20 ℃;

and 4, step 4: putting 8-12kg of dispersible latex powder, 8-12kg of natural latex, 4-6kg of plasticizer, 3kg of color master batch and the raw materials obtained in the step (2) and the step (3) into a stirrer, uniformly stirring, adding 18-22kg of flame retardant and 20kg of calcium hydroxide, and uniformly stirring to form a paste-like raw stock material of the insulation board;

and 5: the method comprises the following steps of enabling primary pulp in a stirrer to flow into a fireproof plate making machine below the stirrer through a funnel, coating saponified oil on the inner surface of the fireproof plate making machine, which is in contact with an insulation board, paving a layer of alkali-resistant mesh cloth on a conveying belt of the fireproof plate making machine, pressing the alkali-resistant mesh cloth into fireproof insulation boards with different thicknesses as required, and cutting the fireproof insulation boards into fireproof insulation boards with different lengths;

step 6: 45-55kg of mica powder is taken and poured into a container, then 60-70kg of film forming agent is added for stirring, and the mixture is smeared on the surface of a heat preservation plate by a brush after being stirred uniformly, so that the sun-proof and anti-aging performance of the heat preservation plate is improved.

Technical Field

The invention relates to the technical field of insulation boards, in particular to a preparation process and a formula of an insulation board special for a refrigeration house.

Background

Since the new century, the agricultural product storage, transportation and preservation technology is rapidly developed, and the development environment and conditions of cold-chain logistics are continuously improved. However, in China, a cold-chain logistics system is not formed yet, the proportion of cold-chain circulation of fresh agricultural products is still low, and the capacity of cold-chain logistics infrastructure is seriously insufficient. In more areas, particularly poor areas, over the years, the problems of serious market lag of various agricultural products occur due to the lack of basic facilities such as refrigerators, fresh-keeping warehouses, refrigerated trucks and the like, and huge economic losses are caused. At present, most of the refrigerator body panels of the cold storage adopt organic polymer foaming heat-insulating materials, but the organic heat-insulating materials have a fatal defect and are combustible.

Disclosure of Invention

The invention aims to provide a preparation process and a formula of a special insulation board for a refrigeration house, so as to solve the problems in the background technology.

The invention solves the technical problem by adopting the following technical scheme to realize a formula of the special insulation board for the refrigeration house, which comprises the following steps: polystyrene foam particles, dispersible latex powder, natural latex, a flame retardant, a foaming agent, a foam stabilizer, nano silicon dioxide, calcium hydroxide, a plasticizer, mica powder, a film forming agent and color master batch; the specific formula is prepared from the following raw materials in parts by weight: 1000kg of polystyrene foam particles, 8-12kg of dispersible latex powder, 8-12kg of natural latex, 18-22kg of flame retardant, 6-8kg of foaming agent, 16-20kg of foam stabilizer, 10-22kg of nano silicon dioxide, 20kg of calcium hydroxide, 4-6kg of plasticizer, 45-55kg of mica powder, 60-70kg of film forming agent and 3kg of color master batch.

Preferably, by weight, 1000kg of polystyrene foam particles, 10kg of dispersible latex powder, 10kg of natural latex, 20kg of flame retardant, 7kg of foaming agent, 18kg of foam stabilizer, 16kg of nano-silica, 20kg of calcium hydroxide, 5kg of plasticizer, 50kg of mica powder, 65kg of film forming agent and 3kg of color master batch.

Preferably, the flame retardant is a tungstate inorganic flame retardant.

Preferably, the blowing agent is a fluorine-free aqueous solution.

Preferably, the foam stabilizer is dimethicone.

Preferably, the plasticizer is dioctyl phthalate.

Preferably, the film forming agent is one or more of acrylic emulsion, pure lactic acid, phenylpropyl lactic acid and fluorocarbon lactic acid.

A preparation method of a special insulation board for a refrigeration house specifically comprises the following steps:

step 1: placing the polystyrene foam particles into a prefoamer with vapor pressure of 0.25-0.35MPa and preheated to 75-85 ℃ for prefoaming, and curing for 6-7h to obtain prefoamed polystyrene foam particles;

step 2: putting 6-8kg of foaming agent and 60-70 times of water into a foaming machine, and stirring the foaming agent and the pre-foamed polystyrene foam particles together to obtain a foaming raw material;

and step 3: mixing 16-20kg of foam stabilizer and 10-22kg of nano silicon dioxide, preheating at 75-85 ℃ for 45-80min, and cooling to 20 ℃;

and 4, step 4: putting 8-12kg of dispersible latex powder, 8-12kg of natural latex, 4-6kg of plasticizer, 3kg of color master batch and the raw materials obtained in the step (2) and the step (3) into a stirrer, uniformly stirring, adding 18-22kg of flame retardant and 20kg of calcium hydroxide, and uniformly stirring to form a paste-like raw stock material of the insulation board;

and 5: the method comprises the following steps of enabling primary pulp in a stirrer to flow into a fireproof plate making machine below the stirrer through a funnel, coating saponified oil on the inner surface of the fireproof plate making machine, which is in contact with an insulation board, paving a layer of alkali-resistant mesh cloth on a conveying belt of the fireproof plate making machine, pressing the alkali-resistant mesh cloth into fireproof insulation boards with different thicknesses as required, and cutting the fireproof insulation boards into fireproof insulation boards with different lengths;

step 6: 45-55kg of mica powder is taken and poured into a container, then 60-70kg of film forming agent is added for stirring, and the mixture is smeared on the surface of a heat preservation plate by a brush after being stirred uniformly, so that the sun-proof and anti-aging performance of the heat preservation plate is improved.

Compared with the prior art, the invention has the following advantages: the fireproof board adopts polystyrene, has the best functions of weight reduction, sound insulation and heat preservation, and has the characteristics of light weight, sound insulation and heat preservation; the adhesive powder, the milk white adhesive and other adhesives are adopted, so that the tensile strength of the product is greatly improved, the materials in the plate are tightly adhered, the service life of the building is prolonged, the manufacturing cost is low, and the economical efficiency is good; the tungstate inorganic flame retardant is adopted, so that the fireproof and flame-retardant performance of the material is effectively improved; the nano silicon dioxide is added in the foaming process, so that the micropore amount of the nano silicon dioxide is increased, the cells are tightly arranged on the surface of the nano silicon dioxide, the heat conductivity coefficient of the nano silicon dioxide is reduced, and the fireproof function of the insulation board is improved.

Detailed Description

In order to make the technical means, the creation features, the work flow and the using method of the present invention easily understand and understand the purpose and the efficacy, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.