阅读说明：本技术 一种冷链车专用保温板制备工艺及配方 (Preparation process and formula of special insulation board for cold chain vehicle ) 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链车专用保温板配方,包括：聚苯乙烯泡沫颗粒、粘结剂、硅质物、阻燃剂、发泡剂、泡沫稳定剂、色母、滑石粉、石墨、苯丙乳液和增强纤维；具体配方由以下重量的原料制成：聚苯乙烯泡沫颗粒1000kg、粘结剂15-25kg、硅质物60-80kg、阻燃剂18-22kg、发泡剂6-8kg、泡沫稳定剂16-20kg、色母3kg、滑石粉15kg、石墨10-14kg、苯丙乳液16-20kg和增强纤维18-22kg。本发明在保温板中增加苯丙乳液大大提高了产品自身的抗拉强度,使板材内部各材料间紧密粘接,延长建筑寿命,造价低,经济性好。(The invention provides a formula of a special insulation board for a cold chain vehicle, which comprises the following components: polystyrene foam particles, a binder, a siliceous substance, a flame retardant, a foaming agent, a foam stabilizer, color master batch, talcum powder, graphite, styrene-acrylic emulsion and reinforcing fibers; the specific formula is prepared from the following raw materials in parts by weight: 1000kg of polystyrene foam particles, 15-25kg of binder, 60-80kg of siliceous material, 18-22kg of flame retardant, 6-8kg of foaming agent, 16-20kg of foam stabilizer, 3kg of color master, 15kg of talcum powder, 10-14kg of graphite, 16-20kg of styrene-acrylic emulsion and 18-22kg of reinforcing fiber. The styrene-acrylic emulsion is added in the heat insulation board, so that the tensile strength of the product is greatly improved, the materials in the board are tightly bonded, the service life of the building is prolonged, the manufacturing cost is low, and the economical efficiency is good.)

1. The formula of the special insulation board for the cold chain vehicle is characterized in that: comprises polystyrene foam particles, a binder, a siliceous substance, a flame retardant, a foaming agent, a foam stabilizer, color master batch, talcum powder, graphite, styrene-acrylic emulsion and reinforcing fiber; the specific formula is prepared from the following raw materials in parts by weight: 1000kg of polystyrene foam particles, 15-25kg of binder, 60-80kg of siliceous material, 18-22kg of flame retardant, 6-8kg of foaming agent, 16-20kg of foam stabilizer, 3kg of color master, 15kg of talcum powder, 10-14kg of graphite, 16-20kg of styrene-acrylic emulsion and 18-22kg of reinforcing fiber.

2. The formula of the insulation board special for the cold chain vehicle according to claim 1, wherein the formula comprises the following components in percentage by weight: by weight, 1000kg of polystyrene foam particles, 20kg of binder, 70kg of siliceous matter, 20kg of flame retardant, 7kg of foaming agent, 18kg of foam stabilizer, 3kg of color master batch, 15kg of talcum powder, 12kg of graphite, 18kg of styrene-acrylic emulsion and 20kg of reinforcing fiber.

3. The formula of the insulation board special for the cold chain vehicle according to claim 1, wherein the formula comprises the following components in percentage by weight: the binder is calcium oxide or calcium hydroxide.

4. The formula of the insulation board special for the cold chain vehicle according to claim 1, wherein the formula comprises the following components in percentage by weight: the siliceous matter active silicon micro powder, micro silicon powder, fly ash, slag micro powder, quartz powder and kaolin.

5. The formula of the insulation board special for the cold chain vehicle according to claim 1, wherein the formula comprises the following components in percentage by weight: the foaming agent is a fluorine-free aqueous solution, and the foam stabilizer is dimethyl silicone oil.

6. The formula of the insulation board special for the cold chain vehicle according to claim 1, wherein the formula comprises the following components in percentage by weight: the reinforcing fiber is one or more of glass fiber, carbon fiber and metal fiber with the length of 0.5-10 mm.

7. The formula of the insulation board special for the cold chain vehicle according to claim 1, wherein the formula comprises the following components in percentage by weight: the graphite is ultrafine graphite.

8. The formula of the insulation board special for the cold chain vehicle according to claim 1, wherein the formula comprises the following components in percentage by weight: the flame retardant is one of sodium tungstate and water glass.

9. A preparation method of a special insulation board for a cold chain vehicle 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, 16-20kg of foam stabilizer and 60-70 times of water into a foaming machine, and uniformly stirring the foaming agent and the pre-foamed polystyrene foam particles obtained in the step 1 to obtain a foaming raw material;

and step 3: taking 15-25kg of binder, 60-80kg of siliceous material, 3kg of color master, 15kg of talcum powder, 10-14kg of graphite, 16-20kg of styrene-acrylic emulsion, 18-22kg of reinforcing fiber and the foaming raw material obtained in the step (2), putting the raw materials into a stirrer, stirring at a constant speed of 70r/min for 30 minutes, adding 18-22kg of flame retardant, stirring at a constant speed of 50r/min for 50 minutes, and uniformly forming the pasty raw material of the insulation board;

and 4, step 4: and (3) allowing the raw stock in the stirrer to flow into a fireproof plate making machine below the stirrer through a funnel, paving a layer of alkali-resistant cloth on a conveying belt of the fireproof plate making machine, and performing compression molding and slitting to obtain the insulation board.

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 cold chain vehicle.

Background

Cold chain logistics generally refers to a system project of producing, storing, transporting and selling refrigerated and frozen foods, and keeping the refrigerated and frozen foods in a specified low-temperature environment in all links before consumption so as to ensure the quality of the foods and reduce the loss of the foods. Since the new century, the agricultural product storage, transportation and preservation technology is rapidly developed, the development environment and conditions of cold-chain logistics are continuously improved, and domestic cold-chain logistics are rapidly developed. The cold chain car is an indispensable tool in cold chain logistics and is mainly responsible for the transportation of frozen foods. The inside heat preservation sheet layer that is equipped with of cold chain car for keep the low temperature in the car, thereby guarantee the new freshness of food, the quality of consequently heated board is closely relevant with the quality of freezing food. However, the strength of the existing heat insulation plate of the cold chain vehicle is not enough, and the cold chain vehicle is easily damaged when running on bumpy road conditions.

Disclosure of Invention

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

The invention solves the technical problem that the formula of the special insulation board for the cold chain vehicle is realized by adopting the following technical scheme, and the formula comprises the following components: polystyrene foam particles, a binder, a siliceous substance, a flame retardant, a foaming agent, a foam stabilizer, color master batch, talcum powder, graphite, styrene-acrylic emulsion and reinforcing fibers; the specific formula is prepared from the following raw materials in parts by weight: 1000kg of polystyrene foam particles, 15-25kg of binder, 60-80kg of siliceous material, 18-22kg of flame retardant, 6-8kg of foaming agent, 16-20kg of foam stabilizer, 3kg of color master, 15kg of talcum powder, 10-14kg of graphite, 16-20kg of styrene-acrylic emulsion and 18-22kg of reinforcing fiber.

Preferably, by weight, 1000kg of polystyrene foam particles, 20kg of binder, 70kg of siliceous material, 20kg of flame retardant, 7kg of foaming agent, 18kg of foam stabilizer, 3kg of color master batch, 15kg of talcum powder, 12kg of graphite, 18kg of styrene-acrylic emulsion and 20kg of reinforcing fiber.

Preferably, the binder is calcium oxide or calcium hydroxide.

Preferably, the silica matter is one of active silica micropowder, micro silica powder, fly ash, slag micropowder, quartz powder and kaolin.

Preferably, the foaming agent is a fluorine-free aqueous solution, and the foam stabilizer is dimethyl silicone oil.

Preferably, the reinforcing fiber is one or more of glass fiber, carbon fiber and metal fiber with the length of 0.5-10 mm.

Preferably, the graphite is ultrafine graphite.

Preferably, the flame retardant is one of sodium tungstate and water glass.

A preparation method of a special insulation board for a cold chain vehicle 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, 16-20kg of foam stabilizer and 60-70 times of water into a foaming machine, and uniformly stirring the foaming agent and the pre-foamed polystyrene foam particles obtained in the step 1 to obtain a foaming raw material;

and step 3: taking 15-25kg of binder, 60-80kg of siliceous material, 3kg of color master, 15kg of talcum powder, 10-14kg of graphite, 16-20kg of styrene-acrylic emulsion, 18-22kg of reinforcing fiber and the foaming raw material obtained in the step (2), putting the raw materials into a stirrer, stirring at a constant speed of 70r/min for 30 minutes, adding 18-22kg of flame retardant, stirring at a constant speed of 50r/min for 50 minutes, and uniformly forming the pasty raw material of the insulation board;

and 4, step 4: and (3) allowing the raw stock in the stirrer to flow into a fireproof plate making machine below the stirrer through a funnel, paving a layer of alkali-resistant cloth on a conveying belt of the fireproof plate making machine, and performing compression molding and slitting to obtain the insulation board.

Compared with the prior art, the invention has the following advantages: according to the invention, the styrene-acrylic emulsion is added in the heat insulation board, so that the tensile strength of the product is greatly improved, all materials in the board are tightly bonded, the service life of the building is prolonged, the manufacturing cost is low, and the economical efficiency is good; the silicon substance and the adhesive enable the heat-insulating plate to have higher strength and toughness; the graphite and the talcum powder are uniformly distributed in the system, so that the stability of the shape of the product and the mechanical properties such as compressive strength, tensile strength and the like can be effectively improved; the random flow of the reinforcing fibers in the matrix forms non-directional distribution, and the pore structure and the number in the material are optimized, so that the strength of the material 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.