阅读说明：本技术 一种环保型全水发泡聚氨酯泡沫制备工艺 (Preparation process of environment-friendly all-water foaming polyurethane foam ) 是由 胡建明 高宗旺 于 2019-09-25 设计创作，主要内容包括：本发明公开了一种环保型全水发泡聚氨酯泡沫制备工艺,由如下工艺模块组合而成,其工艺模块包括第一原料模块、初步混合模块、发泡设备模块、进一步混合模块、加热混合模块、产品包装储存模块和第二原料模块,所述第一原料模块的物料的输送端为初步混合模块,本发明中通过将原先的生产的工艺更改为现有的通过生产第一原料模块与第二原料模块,之后将第一原料模块与第二原料模块按照一定的比例进行混合,这样可以使得得到的聚氨酯泡沫的稳定性更加的良好,通过采用第一原料模块与第二原料模块的混合,这样可以使得生产的工艺得到改善,并且改善之后的工艺的操作步骤更加的方便简易,从而可以使得生产的聚氨酯泡沫可以更好的进行生产。(The invention discloses a preparation process of environment-friendly all-water foaming polyurethane foam, which is formed by combining the following process modules, wherein the process modules comprise a first raw material module, a primary mixing module, a foaming equipment module, a further mixing module, a heating mixing module, a product packaging storage module and a second raw material module, the conveying end of the material of the first raw material module is the primary mixing module, the original production process is changed into the existing process of producing the first raw material module and the second raw material module, and then the first raw material module and the second raw material module are mixed according to a certain proportion, so that the stability of the obtained polyurethane foam is better, the first raw material module and the second raw material module are mixed, the production process can be improved, and the operation steps of the improved process are more convenient and simpler, thereby enabling the polyurethane foam produced to be better produced.)

1. The utility model provides an environment-friendly full water foaming polyurethane foam preparation technology, is formed by following process module combination, and its process module includes first raw materials module (1), preliminary mixing module (2), foaming equipment module (3), further mixing module (4), heating mixing module (5), product package storage module (6) and second raw materials module (7), its characterized in that: the conveying end of the material of the first raw material module (1) is a preliminary mixing module (2), the preliminary mixing module (2) receives the material from the first raw material module (1), the conveying end of the material of the preliminary mixing module (2) is a foaming equipment module (3), the foaming equipment module (3) receives the material from the preliminary mixing module (2), the conveying end of the material of the foaming equipment module (3) is a further mixing module (4), the further mixing module (4) receives the material from the foaming equipment module (3), the conveying end of the material of the further mixing module (4) is a heating mixing module (5), the heating mixing module (5) receives the material from the further mixing module (4), the conveying end of the material of the heating mixing module (5) is a product packaging storage module (6), the product packaging and storing module (6) receives materials from the heating and mixing module (5), the other material conveying end of the primary mixing module (2) is a second raw material module (7), and the second raw material module (7) conveys the materials inside to the primary mixing module (2).

2. The preparation process of the environment-friendly all-water foaming polyurethane foam as claimed in claim 1, wherein the preparation process comprises the following steps: the feed device is characterized in that the first raw material module (1) comprises a first sampling weighing module (11), a first reaction kettle module (12) and an additive mixing module (13), the conveying end of the material of the first sampling weighing module (11) is the first reaction kettle module (12), the first reaction kettle module (12) receives the material from the first sampling weighing module (11), the conveying end of the material of the first reaction kettle module (12) is the additive mixing module (13), the additive mixing module (13) receives the material from the first reaction kettle module (12), and the material conveying end of the first raw material module (1) is a primary mixing module (2).

3. The preparation process of the environment-friendly all-water foaming polyurethane foam as claimed in claim 1, wherein the preparation process comprises the following steps: the second raw material module (7) comprises a second sampling and weighing module (71), a raw material pretreatment module (72), a catalyst mixing module (73), a second reaction kettle module (74) and a neutralization layering module (75), wherein the conveying end of the materials of the second sampling and weighing module (71) is the raw material pretreatment module (72), the raw material pretreatment module (72) receives the materials from the second sampling and weighing module (71), the conveying end of the materials of the raw material pretreatment module (72) is the catalyst mixing module (73), the catalyst mixing module (73) receives the materials from the raw material pretreatment module (72), the conveying end of the materials of the catalyst mixing module (73) is the second reaction kettle module (74), and the second reaction kettle module (74) receives the materials from the catalyst mixing module (73), the material conveying end of the second reaction kettle module (74) is a neutralization layering module (75), the neutralization layering module (75) receives materials from the second reaction kettle module (74), and the material conveying end of the second raw material module (7) is a preliminary mixing module (2).

4. The preparation process of the environment-friendly all-water foaming polyurethane foam as claimed in claim 1, wherein the preparation process comprises the following steps: the main component of the first raw material module (1) is isocyanate, the first raw material module (1) is a general name of various esters of isocyanate, the esters in the first raw material module (1) comprise monoisocyanate, diisocyanate, polyisocyanate and the like, and common diisocyanates of the first raw material module (1) comprise toluene diisocyanate, isophorone diisocyanate, diphenylmethane diisocyanate, dicyclohexylmethane diisocyanate, hexamethylene diisocyanate and lysine diisocyanate.

5. The preparation process of the environment-friendly all-water foaming polyurethane foam as claimed in claim 1, wherein the preparation process comprises the following steps: the main component of the second raw material module (7) is polyether polyol, the polyether polyol in the second raw material module (7) is prepared by performing polyaddition reaction on a compound containing active hydrogen groups of a starter and ethylene oxide, propylene oxide, butylene oxide and the like in the presence of a catalyst, and the largest polyether yield in the second raw material module (7) is that glycerol is used as the starter and epoxide are used for producing various polyether polyols in common use by changing the feeding modes, the feeding ratio, the feeding sequence and the like of propylene oxide and ethylene oxide.

6. The preparation process of the environment-friendly all-water foaming polyurethane foam as claimed in claim 1, wherein the preparation process comprises the following steps: the foaming equipment module (3) realizes a contact surface of liquid and gas as large as possible by introducing air into a foaming agent aqueous solution to uniformly disperse the air, so that surface active substances in the foaming agent form an electric double layer on the surface of a liquid film and form bubbles by surrounding the air, the foaming equipment module (3) is a machine for injecting raw materials capable of generating plastic foam into a gap between a container and contents lined with a film when a product is packaged, the foaming equipment module (3) forms a foam buffer material tightly packed with the contents through a chemical reaction, and a technical system that a foaming machine and the foaming agent in the foaming equipment module (3) are matched with each other cannot play a role independently.

7. The preparation process of the environment-friendly all-water foaming polyurethane foam as claimed in claim 1, wherein the preparation process comprises the following steps: preliminary mixing module (2) is all the same with the theory of operation of the inside of further mixing module (4), preliminary mixing module (2) is all the same with the equipment that further mixing module (4) adopted, preliminary mixing module (2) all with switch electric connection with further mixing module (4), preliminary mixing module (2) is mixed with the main working method of further mixing module (4).

8. The preparation process of the environment-friendly all-water foaming polyurethane foam as claimed in claim 1, wherein the preparation process comprises the following steps: the first raw material module (1) and the second raw material module (7) are fully mixed and reacted in the reaction kettle according to a certain proportion, the first raw material module (1) and the second raw material module (7) are both semi-finished materials, and the first raw material module (1) and the second raw material module (7) need to be weighed when in use.

Technical Field

The invention belongs to the technical field of polyurethane material correlation, and particularly relates to a preparation process of environment-friendly all-water foaming polyurethane foam.

Background

The rigid polyurethane foam is a high molecular polymer prepared by mixing isocyanate and polyether serving as main raw materials through special equipment under the action of various auxiliary agents such as a foaming agent, a catalyst, a flame retardant and the like and performing high-pressure spraying and on-site foaming. Polyurethane has both soft and hard foams. The soft foam is in an open pore structure, the hard foam is in a closed pore structure, the soft foam is divided into a skinning foam and a non-skinning foam, and the main function of the polyurethane soft foam is buffering. Polyurethane flexible foams are commonly used in sofa furniture, pillows, cushions, toys, apparel and sound insulation liners.

The prior art for preparing polyurethane foam has the following problems: the existing polyurethane foam preparation process may cause that the stability of the produced polyurethane foam is not very good due to overactivity among various elements in the polyurethane foam, and the production process is complex when the polyurethane foam is produced, so that the produced polyurethane may have an unstable phenomenon.

Disclosure of Invention

The invention aims to provide an environment-friendly all-water foaming polyurethane foam preparation process, and aims to solve the problems that the existing polyurethane foam preparation process proposed in the background art is relatively complicated in production process and not quite good in stability of the produced cost.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides an environment-friendly full water foaming polyurethane foam preparation technology, is formed by following process module combination, and its process module includes first raw materials module, preliminary mixing module, foaming equipment module, further mixing module, heating mixing module, product package storage module and second raw materials module, the delivery end of the material of first raw materials module is preliminary mixing module, preliminary mixing module receives the material that comes from first raw materials module, the delivery end of the material of preliminary mixing module is foaming equipment module, foaming equipment module receives the material that comes from preliminary mixing module, the delivery end of the material of foaming equipment module is further mixing module, further mixing module receives the material that comes from foaming equipment module, the delivery end of the material of further mixing module is heating mixing module, heating mixing module receives the material that comes from further mixing module, the conveying end of the material of the heating and mixing module is a product packaging storage module, the product packaging storage module receives the material from the heating and mixing module, the other material conveying end of the primary mixing module is a second raw material module, and the second raw material module conveys the material inside to the primary mixing module.

Preferably, the first raw material module comprises a first sampling weighing module, a first reaction kettle module and an additive mixing module, the conveying end of the material of the first sampling weighing module is the first reaction kettle module, the first reaction kettle module receives the material from the first sampling weighing module, the conveying end of the material of the first reaction kettle module is the additive mixing module, the additive mixing module receives the material from the first reaction kettle module, and the material conveying end of the first raw material module is a preliminary mixing module.

Preferably, the second raw material module comprises a second sampling and weighing module, a raw material preprocessing module, a catalyst mixing module, a second reaction kettle module and a neutralization layering module, wherein the conveying end of the material of the second sampling and weighing module is the raw material preprocessing module, the raw material preprocessing module receives the material from the second sampling and weighing module, the conveying end of the material of the raw material preprocessing module is the catalyst mixing module, the catalyst mixing module receives the material from the raw material preprocessing module, the conveying end of the material of the catalyst mixing module is the second reaction kettle module, the second reaction kettle module receives the material from the catalyst mixing module, the conveying end of the material of the second reaction kettle module is the neutralization layering module, and the neutralization layering module receives the material from the second reaction kettle module, and the material conveying end of the second raw material module is a primary mixing module.

Preferably, the main component of the first raw material module is isocyanate, the first raw material module is a generic name of various esters of isocyanate, the ester in the first raw material module includes monoisocyanate, diisocyanate, polyisocyanate and the like, and the common diisocyanate of the first raw material module includes toluene diisocyanate, isophorone diisocyanate, diphenylmethane diisocyanate, dicyclohexylmethane diisocyanate, hexamethylene diisocyanate and lysine diisocyanate.

Preferably, the main component of the second raw material module is polyether polyol, the polyether polyol in the second raw material module is prepared by addition polymerization of a compound containing an active hydrogen group as a starter and ethylene oxide, propylene oxide, butylene oxide and the like in the presence of a catalyst, and the largest polyether yield in the second raw material module is various general polyether polyols produced by changing the feeding modes, the feeding ratio, the feeding sequence and the like of propylene oxide and ethylene oxide by using glycerol as the starter and epoxide.

Preferably, the foaming device module is a machine for forming a foam cushioning material for tight packing by chemical reaction, and a technical system in which a foaming machine and a foaming agent inside the foaming device module are matched with each other cannot function independently.

Preferably, the theory of operation of preliminary mixing module and the inside of further mixing module is the same, the preliminary mixing module is the same with the equipment that further mixing module adopted, preliminary mixing module and further mixing module all with switch electric connection, the preliminary mixing module is mixed with the main working method of further mixing module.

Preferably, the first raw material module and the second raw material module are fully mixed and reacted in the reaction kettle according to a certain proportion, the first raw material module and the second raw material module are both semi-finished materials, and the first raw material module and the second raw material module need to be weighed when in use.

Compared with the prior art, the invention provides a preparation process of environment-friendly all-water foaming polyurethane foam, which has the following beneficial effects:

(1) according to the invention, the original production process is changed into the existing process of producing the first raw material module and the second raw material module, and then the first raw material module and the second raw material module are mixed according to a certain proportion, so that the stability of the obtained polyurethane foam is better;

(2) according to the invention, the first raw material module and the second raw material module are mixed to be manufactured, so that the production process can be further improved, the operation steps of the improved process are more convenient and simpler, and the produced polyurethane foam can be better produced, thereby solving the problems that the production process of the existing polyurethane foam preparation process is more complicated and the stability of the produced cost is not very good.

Drawings

FIG. 1 is a schematic structural view of a polyurethane foam production process of the present invention;

FIG. 2 is a schematic structural diagram of a first feedstock module of the present invention;

FIG. 3 is a schematic structural view of a second feedstock module of the present invention;

in the figure: 1. a first feedstock module; 11. a first sampling and weighing module; 12. a first reactor module; 13. an additive mixing module; 2. a preliminary mixing module; 3. a foaming device module; 4. a further mixing module; 5. a heating and mixing module; 6. a product package storage module; 7. a second feedstock module; 71. a second sampling and weighing module; 72. a raw material pretreatment module; 73. a catalyst mixing module; 74. a second reaction kettle module; 75. and a neutralization layering module.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in 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, and not all of the 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.

Referring to fig. 1-3, the present invention provides a technical solution: an environment-friendly all-water foaming polyurethane foam preparation process is formed by combining the following process modules, wherein the process modules comprise a first raw material module 1, a primary mixing module 2, a foaming equipment module 3, a further mixing module 4, a heating mixing module 5, a product packaging storage module 6 and a second raw material module 7, the first raw material module 1 comprises a first sampling weighing module 11, a first reaction kettle module 12 and an additive mixing module 13, the conveying end of the material of the first sampling weighing module 11 is the first reaction kettle module 12, the first reaction kettle module 12 receives the material from the first sampling weighing module 11, the conveying end of the material of the first reaction kettle module 12 is the additive mixing module 13, the additive mixing module 13 receives the material from the first reaction kettle module 12, the material conveying end of the first raw material module 1 is the primary mixing module 2, the main component of the first raw material module 1 is isocyanate, the first raw material module 1 is a generic name of various esters of isocyanate, the esters in the first raw material module 1 comprise monoisocyanate, diisocyanate, polyisocyanate and the like, the common diisocyanate of the first raw material module 1 comprises toluene diisocyanate, isophorone diisocyanate, diphenylmethane diisocyanate, dicyclohexylmethane diisocyanate, hexamethylene diisocyanate and lysine diisocyanate, the conveying end of the materials of the first raw material module 1 is a primary mixing module 2, the primary mixing module 2 receives the materials from the first raw material module 1, the conveying end of the materials of the primary mixing module 2 is a foaming equipment module 3, the foaming equipment module 3 realizes the contact surface of liquid and gas as large as possible by introducing air into the foaming agent aqueous solution to be uniformly dispersed, so that surface active substances in the foaming agent form an electric double layer on the surface of a liquid film and surround the air to form bubbles,

an environment-friendly full-water foaming polyurethane foam preparation process comprises a foaming equipment module 3, a machine for injecting raw materials capable of generating plastic foam into a gap between a container and content lined with a film when the product is packaged, wherein the foaming equipment module 3 forms a foam cushioning material tightly packed with the content through a chemical reaction, so that better foaming effect can be realized, a foaming machine and a foaming agent in the foaming equipment module 3 cannot independently play roles due to a technical system in which the foaming machine and the foaming agent are matched with each other, the foaming equipment module 3 receives materials from a primary mixing module 2, the material conveying end of the foaming equipment module 3 is a further mixing module 4, the further mixing module 4 receives the materials from the foaming equipment module 3, the material conveying end of the further mixing module 4 is a heating mixing module 5, the heating mixing module 5 receives the materials from the further mixing module 4, the conveying end of the material of the heating and mixing module 5 is a product packaging and storing module 6, the product packaging and storing module 6 receives the material from the heating and mixing module 5, the first raw material module 1 and the second raw material module 7 are fully mixed and reacted in the reaction kettle according to a certain proportion, so that better mixing and reaction can be performed, the first raw material module 1 and the second raw material module 7 are both semi-finished materials, the first raw material module 1 and the second raw material module 7 need to be weighed when in use, the other material conveying end of the primary mixing module 2 is the second raw material module 7, the main component of the second raw material module 7 is polyether polyol, the polyether polyol in the second raw material module 7 is prepared by polyaddition reaction of a compound containing an active hydrogen group as an initiator and ethylene oxide, propylene oxide, butylene oxide and the like in the presence of a catalyst, the largest output of polyether in the second raw material module 7 is that various general polyether polyols are produced by using glycerol as an initiator and epoxide through changing the conditions of feeding modes, feeding ratios, feeding sequences and the like of propylene oxide and ethylene oxide,

an environment-friendly full-water foaming polyurethane foam preparation process comprises a second raw material module 7, wherein the second raw material module comprises a second sampling weighing module 71, a raw material pretreatment module 72, a catalyst mixing module 73, a second reaction kettle module 74 and a neutralization layering module 75, the conveying end of materials of the second sampling weighing module 71 is the raw material pretreatment module 72, the raw material pretreatment module 72 receives the materials from the second sampling weighing module 71, the conveying end of the materials of the raw material pretreatment module 72 is the catalyst mixing module 73, the catalyst mixing module 73 receives the materials from the raw material pretreatment module 72, the conveying end of the materials of the catalyst mixing module 73 is the second reaction kettle module 74, the second reaction kettle module 74 receives the materials from the catalyst mixing module 73, the conveying end of the materials of the second reaction kettle module 74 is the neutralization layering module 75, the neutralization layering module 75 receives the materials from the second reaction kettle module 74, the material transport end of second raw materials module 7 is preliminary mixing module 2, the theory of operation homogeneous phase of the inside of preliminary mixing module 2 and further mixing module 4, preliminary mixing module 2 is homogeneous phase with the equipment that further mixing module 4 adopted, preliminary mixing module 2 and further mixing module 4 all with switch electric connection, thereby can be so that mix through preliminary mixing module 2 with further mixing module 4 is better, preliminary mixing module 2 is mixed with the main working method of further mixing module 4, second raw materials module 7 carries the inside of preliminary mixing module 2 with the inside material.

The working principle and the using process of the invention are as follows: the first raw material is weighed by the first sampling and weighing module 11, and then is reacted by the first reaction kettle module 12, and the reacted raw material is mixed with the additive mixing module 13, so as to generate the first raw material module 1, the first raw material module 1 is directly prepared as a direct reactant, the main component of the first raw material module 1 is isocyanate, the first raw material module 1 is a general name of various esters of isocyanic acid, the esters in the first raw material module 1 comprise monoisocyanate, diisocyanate, polyisocyanate and the like, the common diisocyanates of the first raw material module 1 comprise toluene diisocyanate, isophorone diisocyanate, diphenylmethane diisocyanate, dicyclohexylmethane diisocyanate, hexamethylene diisocyanate and lysine diisocyanate, the synthesis of the second raw material generally needs to be firstly weighed by the second sampling and weighing module 71, allowing sufficient reaction, and then allowing the raw material pretreatment module 72 to react, wherein an initiator and a catalyst are usually premixed to generate an intermediate oxide, the intermediate oxide is vacuum-dehydrated and then added into a reaction kettle, the reaction kettle is generally a glass-lined or stainless steel reaction kettle, the catalyst and water are added into the reaction kettle under strong stirring, the second raw material module 7 is prepared after layering and neutralization, the main component of the second raw material module 7 is polyether polyol, the polyether polyol in the second raw material module 7 is prepared by carrying out polyaddition reaction on a compound containing active hydrogen groups as the initiator and ethylene oxide, propylene oxide, butylene oxide and the like in the presence of a catalyst, the polyether yield in the second raw material module 7 is the maximum polyether yield of various general polyether polyols by using glycerol as the initiator and an epoxide and changing the conditions of the feeding modes, the feeding ratio, the feeding order and the like of the propylene oxide and the ethylene oxide, then, the first raw material module 1 and the second raw material module 7 are preliminarily mixed under the action of the preliminary mixing module 2, then are mixed in a certain proportion under the action of the foaming equipment module 3, then the first raw material module 1 and the second raw material module 7 are further mixed under the action of the further mixing module 4, then are heated at a certain temperature under the action of the heating and mixing module 5, so that foaming is formed under uniform mixing to generate relatively good polyurethane foam, the density of the formed polyurethane foam is 4-30 kg/cubic meter, and the polyurethane foam can be better produced by adopting the mixing manufacture of the first raw material module 1 and the second raw material module 7, so that the production process can be further improved, and the operation steps of the improved process are more convenient and simpler, and the produced polyurethane foam can be better produced, this makes it possible to obtain polyurethane foam having a better stability, thus completing the use of the system.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.