TWI238767B - Continuous foaming method for producing thermoplastic elastomer composite material with sandwiched structure - Google Patents

Abstract

A continuous foaming method for producing a thermoplastic elastomer composite material with a sandwiched structure comprises: separately adding different functional additives, such as compatilizer, foaming agent, cross-linking agent, etc., into a composite material using a thermoplastic elastomer as a matrix; performing kneading and sheeting treatments on the resulting mixture to produce a first sheet material with an external layer and a specified width and thickness; cooling the first sheet material; separately adding different functional additives, such as compatilizer, foaming agent, cross-linking agent, etc., into another composite material using a thermoplastic elastomer as a matrix; performing same kneading and sheeting treatments on the resulting mixture to produce a second sheet material with an external layer, while simultaneously laminating a reinforcing layer and the first sheet material thereon to form a sandwiched structure; subjecting the composite structure to a brief calendering process by calenders to form an integral body; feeding the resulting integral body into an oven to receive a foaming treatment in a normal pressure environment; upon completion of foaming, performing a cooling treatment on the foamed material; and winding the cooled material by a roller to produce a continuous foamed sheet material.

Description

1238767 Amendment ----- MM 92123. ^ 9 V. Description of the invention (!) [Invention: The technical field of the invention] This ^ Ming is about a kind of foaming; phase _-,: traditional rubber continuous relay method; : Kind of continuous foaming with sandwich sandwich structure: = made with [prior art] in plastic 'hair: bismuth package: materials can be roughly divided into materials according to the different materials used = materials and rubber foam materials Wait two, because the application fields of these foamed plastic foams are also different. Based on the conventional ene-vinegar in its foaming process technology, the general is based on the plastic foaming material that is easy to make after the body = !, in addition to the advantages: "Youxian will be formed into other Finished products with complex shapes are made of foam: easy to color, etc. In addition, the application of ρΐ in daily life is quite mature, so shoe materials or floor mat materials visible at Ik in Japan and China are made of ::, , Its disadvantage lies in this kind of plastic hair; G poor elasticity and slip resistance. # 心 何 科 itself, in the conventional rubber continuous foaming process (atmospheric pressure), the conventional rubber produced in: gas: pvc / _ blend or other rubber materials, for its :: Although the plastic foaming material can make up for the lack of pads, insoles, or some floor mats of the aforementioned plastic foaming materials, the mouse—such as miscellaneous—is very easy to lose due to manufacturing. " 5 pages 1238767

^ ----- 92123532 发明, description of the invention 衣 Yi brother Qiao Bing. In addition to this, the finished material 胗 praise material > is too large, which causes its tensile strength to decrease, so it cannot be applied to? In the case of tensile force, its application range is limited. And so the same, 'how to change the process' under normal pressure to continuously produce foaming materials with high tensile force characteristics' to effectively improve the characteristics and application fields of foaming materials, which is the purpose of the present invention. Explore an important topic. [Summary of the Invention] In view of the problems existing in the conventional rubber and plastic foam materials for a long time, the inventor has developed the invention with a sandwich structure of Meiji based on many years of practical experience and research. Continuous foaming manufacturing method of thermoplastic elastomer composite material. An object of the present invention is to knead and extrude a composite material based on a thermoplastic elastomer as a base material, and after adding components such as a complexing agent, a foaming agent, and a bridging agent with different functions, And after making one of the first outer layer sheet body with a predetermined width and thickness, 'the first outer layer sheet body is cooled and reserved; 嗣, then another composite material based on a thermoplastic elastomer is added separately After different ingredients such as the compounding agent, foaming agent, and bridging agent, the same kneading treatment is performed, and when the sheet is rolled out to form a second outer layer sheet body, a reinforcing layer and the first The outer surface sheet body is aligned and stacked on the second outer surface sheet body in the output film to form a sandwich sandwich structure, and is slightly pressed by a roller to be pressed into one body, and then sent to the baking phase. Under the pressure environment, the foaming treatment is performed. After the foaming is completed, it is cooled and taken up by a shaft to produce a continuous sheet of continuous foamed material.

Page 1238767 No. 3 V. Description of the invention (3) After the present invention, the foaming material with special appearance can be rolled out, and the foaming material properties and anti-slip properties of the structure of the present invention have high tensile strength, which is a noble principle , There is a formula, detailed description 92123532

Another purpose is to perform embossing treatment on the surface of the sandwich descaling wheel: to complete the surface anti-slip property of the foamed thermoplastic elastomer. The material slab, for the purpose of effectively improving yet another purpose, is based on the following features: not only the general rubber foam material / σ interlayer yttrium, but also the high elasticity of the fiber in the reinforcing layer. beer,,,. Structure, so that its review committee can have a clearer understanding and understanding of the purpose of the present invention, and here are the concepts and techniques of each Erming: In the production of an outer layer type] The Ming system is a three-structured thermal method. Different Meiji sandwich methods will be added. After the separation, they are kneaded and plasticized. Cooperate with 1 li to teach a supplementary two-year-old interlayer sheet body, an elastomer complex plastic elastic compounding agent, and treatment, and foam the primary elastomer agent and a rolling layer and the surface layer structure. One of the components of the sandwich continuous foaming manufacturing material, such as the composite material bridging agent, has a predetermined width and speed, and the first outer layer sheet is cooled to prepare the standby composite material, agent, and other components; To form a second outer surface sheet body, a first outer surface sheet body, aligned and stacked on top of each other to form a sandwich sandwich structure, that is, the first outer surface sheet body, the reinforcing layer, and the first The substrate with the bridging agent in the kneading ^ another function of the different, sequentially a film of the outer skin of the sandwich

—〆 Case No. 92123M2 1238767 on page 7 Amendment V. Description of the invention (4) ^ layer structure and a slight pressure by a roller, pressed into a body, sent into a baking = medium, 'under normal pressure environment, the development After the foaming process, the foaming is completed, and then it is cooled and taken up by the axle to continuously produce the material of the present invention. The foaming material not only has the properties of ordinary rubber foaming materials = elasticity and Anti-slip properties and better tensile strength due to the structural characteristics of the reinforcing layer. In the present invention, the first and second outer surface sheet bodies are mainly thermoplastic elastomers (styrenic thermoplastic materials for women and children), including styrene-butadiene ~ stupid S, Styrene-ethylene / butylene-styrene (SEBS), or styrene-styrene-ethyl ethene) and other materials in the base material, such as plastic, etc .: Add other rubber, thermoplastic elastomer wooden bridge Scrapers and other compounding agents, preparations of composite materials, Xi = β Hai thermoplastic elasticity is the same as or different from this month, bu = = material formula used on the surface sheet, comparable fabrics; ;: Surface layer: the body, the reinforcing layer is made of woven fabrics such as fibers, other artificial fiber cloth, or other high-group synthesis Hii; ::: ': the two outer surface sheets and the reinforcing layer Thermoplastic elastomer human μ — fiber gap, to ensure that it is accompanied by 1 smoke, white J ° J 枓: the reinforcing layer penetrated into the fabric is tightly combined with each other. The surface layer sheet can be combined with the & in a preferred embodiment of the present invention, it is completely transferred according to the Tianxi μ. Continuous foaming method 1 uses traditional kneading 丄; traditional rubber | 1 (^ ~; ---- --- The thermoplastic elastomer compounded by the shoulder 1238767 Amendment No. 92123532 V. Description of the invention (5) The materials are sequentially kneaded, extruded, and foamed. (101) First, the present invention is Each component of the thermoplastic elastomer composite material is put into a kneader, a roll mill, a double-roller mill (atw0-roll mill) or a 10,000 horsepower kneader at a predetermined weight percentage, respectively. In a device such as a Banbury mixer, the components can be mixed uniformly in the device at a temperature of about 90 to 130X: (102) the thermoplastic elastomer composite material after uniform mixing, Feed into a three-roller film ejection device, roll it, and control its width and thickness to form the first outer layer sheet with a continuous length and the required width and thickness, and 俟 the first outer layer sheet After cooling down, it can be used for further processing; (103) 嗣, and then heat Each component of the plastic elastomer composite material is placed into a device such as a kneader or kneading machine with the same or different formula according to the same manufacturing procedure, and the second outer layer sheet material 2 is mixed and processed; 1 04) 俟 After the mixing is completed, the material of the second outer layer sheet is placed in a three-roller sheet ejection device. When the sheet is rolled out, the reinforcing layer and the first outer layer sheet are sequentially , Aligned and superimposed on the second outer surface sheet body in the output sheet to form a sandwich sandwich structure. The combined structure is slightly pressed by two rollers and pressed into one to form an unfoamed sandwich ^ (105) 嗣, and then the continuous sandwich sandwich structure is sent into the supply box 'make the oven at a temperature of about 150 to 180 ° c, in an atmosphere of atmospheric pressure The sandwich delamination structure is subjected to foaming treatment,

1238767 ___Case No. 92123532 _Year Month _Amendment __ V. Description of the invention (6) After an appropriate time in the oven, depending on the size and thickness of the continuous sheet, it generally takes about 10 to 30 minutes The sandwich sandwich structure that has been foamed can be sent out of the oven; (106) Finally, the continuous sandwich sandwich structure that has been foamed is cooled and taken up by an axle to produce Roll of continuous foamed material sheet. In this embodiment of the present invention, the thermoplastic elastomer composite material used for the two outer-layer sheet bodies includes the following components, but in actual application, the material composition can be changed according to actual needs to make the two-layer sheet body It has different physical characteristics: (1) styrene-based thermoplastic elastomer: This component is the base material of the composite material, accounting for about 50% to 100% of the total weight, which can be § β s, Materials such as SEBS, SIS or hydrogenated styrene-isoprene-styrene block copolymer (SEPS). (2) Chemical foaming agent: The percentage of this ingredient in the total weight is about 1% to 15%. 'It can be an azo chemical foaming agent, or a physical foaming agent such as baking soda powder. 0 (3) Bridge Agent · The percentage of this ingredient in the total weight is about 0% to 1%. 'It can be dicumyl peroxide (dicumyi peroxide &gt; 5 peroxotributyl-2,5-dimethylhexyl) Materials such as alkane <2, 5- (tert- 'buty 1 per oxide) -2, 5-dime thy 1 hexane> or sulfur. In this embodiment, the material used for the reinforcing layer may be based on actual needs, Use gauze, non-woven fabrics of various thicknesses, denier numbers, and other: two &amp; fiber = or other polymer materials, where the polymer materials can be styrene-ethylene series

1238767 _ Case No. 92123532 V. Description of the invention (7) In addition, when the present invention is actually applied, the composite material is not limited to the month! I described wounds, but can also be achieved according to the desired function, characteristics, or actual As required, in the composite material of the thermoplastic elastomer, the following components are selected to be added to make the two outer-layer sheet bodies referred to in the present invention: (1) Other polymer materials ... The component is the base of the composite material Material, about 0% to 50% of the total weight, can be styrene-butadiene rubber (SBR), polystyrene (ps), polyethylene-vinyl acetate (eva), polyethylene (jDPE) ), Ethylene-propylene _ non _ conjugated diene rubber (EpD about #material ', 俾 to change the material characteristics of the foaming material, so that it can meet the real (2) functional compounding agent: This component accounts for the main polymer material Ethylene-based thermoplastic elastomers and other polymer materials) weigh about 0% to 50%, and can be antistatic agents, flame retardants, etc. to improve the physical properties of foamed materials. Μ (3) Foaming Aid ·· This component accounts for 3% to 3% of the main polymer material. Urea 4 material family, hunting to promote the effect of foaming (4) Other additions Qi ij, ▼ Recording ingredients include 彳:, stearic acid or zinc stearate and other materials, or as a processing agent; And sawdust and other materials, so as to change the color of j, the visual effect presented. The material characteristics of the material department or / In summary, the one-star foaming material produced by the present invention not only has general rubber foaming ^ ~ interlayer junction; f and anti-slip characteristics, but also because of the structure of the reinforcing layer [ ^ Have high elasticity, 丨 Tensile strength, In addition, the foamed material can roll even after it has better foaming.

Embossing treatment is performed on the surface, and it is coiled after cooling, that is, π speed is continued to produce foaming begging with tensile strength and special texture on the appearance to effectively wipe out the surface of the foamed material. Sex. The above description is only a preferred embodiment of the present invention. However, the present invention m! 1! ® is not limited to this. According to the familiarization of the technology, it should belong to the protection scope of the present invention. Change of work efficiency 1238767

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Claims (1)

1238767 _ Case No. 92123532 6. Scope of patent application 1. A continuous foaming manufacturing method of a thermoplastic elastomer with an Ermeiji sandwich structure. The method includes the following steps: First, a composite using a thermoplastic elastomer as a substrate After adding ingredients such as foaming agent and bridging agent, the materials are mixed and kneaded and processed to produce a first outer layer sheet having a predetermined width and thickness, and then the first outer layer sheet is formed. The body is cooled and ready for use; then another composite material based on a thermoplastic elastomer is added with components with different functions, such as a compounding agent, a foaming agent and a bridging agent, and then it is kneaded and mixed. When rolling out a sheet to form a second outer layer sheet, a reinforcing layer and the first outer layer sheet are sequentially aligned and superimposed on the second outer layer sheet in the sheet to form— Sandwich sandwich structure, that is, the sandwich sandwich structure is the first outer layer sheet body, the reinforcing layer and the second outer layer sheet body in this order. The sandwich sandwich structure is slightly pressed by a roller and pressed into one body. That is, an unfoamed sandwich layer structure is formed; ^ 嗣, and then the sandwich sandwich structure is sent to an oven, and the Ermeiji sandwich structure is subjected to foaming treatment under normal pressure% disturbance. After the time, the sandwich sandwich structure that has been foamed can be taken out of the oven; '^ finally', the continuous sandwich sandwich structure that has been foamed is cooled and taken up by an axle to make a roll. Continuous foamed material sheet, 2. The method described in item 1 of the scope of patent application, wherein the heat-resistant Hi 'raw elastic system is styrene (styren ^ c thermoplastic 1238767 case number 92123532, amendment 6), patent application Range elastomer) material is the base material, and the thermal plastic elastomer can be styrene-butyl styrene-butyl styrene-butyl styrene (SBS), styrene-ethyl benzene-ethyl benzene / butyl benzene-diethyl benzene (SEBS), or Materials such as styrene-isoprene-styrene (SIS) or hydrogenated styrene-isoprene-styrene block copolymer (SEPS) have a weight percentage of about 50% to 100%. 3. The method as described in item 2 of the scope of the patent application, wherein each component of the thermoplastic elastomer composite material is placed in a traditional kneading and kneading device according to a predetermined weight percentage, so that these components can be used. Knead and knead in these devices at a temperature of about 90 to 130 ° C, and mix uniformly. 4. The method as described in item 3 of the scope of patent application, wherein the oven is subjected to foaming treatment at a temperature of about 150 to 180 ° C under normal pressure, and after an appropriate time, The required foaming material can be made. 5. The method as described in item 2 of the scope of patent application, wherein the foaming agent may be an azo-based chemical foaming agent or a physical foaming agent such as baking soda powder, and its weight percentage is about 1% to 15% . 6. The method as described in item 5 of the scope of patent application, wherein the bridging agent may be dicumyl peroxide, 2,5-peroxotributyl-2,5-difluorene 1% 至 1 ° / 〇。 Hexane <2,5-Uert-butylperoxide) -2,5-dimethylhexane> or sulfur and other materials, its weight percentage is about 0.1% to 1 ° / 〇. 7. The method according to item 6 of the scope of patent application, wherein the thermoplastic elastomer composite material further comprises other polymer materials, and the polymer material Page 15 1238767 Case No. 92123532 Amendment VI. The scope of patent application can be styrene-butadiene rubber (SBR), polystyrene (PS), polyethylene-vinyl acetate (EVA), low density polyethylene ( LDPE), ethylene-propylene-non-conjugated diene rubber (EPDM) and other materials, the weight percentage of which is about 0% to 50% 〇8, the method described in the sixth item of the patent application, wherein the thermoplastic The elastomer composite material also contains a foaming aid, which may be zinc oxide or urea, and its weight percentage is about 0% to 3% by weight of the styrene-based thermoplastic elastomer and other polymer materials. 9. The method as described in item 6 of the scope of the patent application, wherein the thermoplastic elastomer composite material further contains other stearic acid as a processing aid. 10. The method as described in item 6 of the scope of the patent application, wherein the thermoplastic elastomer composite material further comprises other materials such as colorants, calcium, wood and the like as extenders. I ^ • 1 j. The method as described in item 6 of the scope of patent application, wherein the heat-curable elastomer composite material still contains a functional compounding agent, which is functionally formulated with eight :: f resistance! Electric agent, flame retardant or reinforcing agent, etc., whose weight accounts for stupid ethylene; The weight percentage of w 2 elastomer and other polymer materials is about to ', the heart of the layer: the method described in the first item of the scope, • The reinforcements include ^ 'gauze of various thicknesses, Denny number, non-woven fabric = other man-made fiber cloth or other polymer materials. The sub-material may be the method described in item 12 above, &quot; the high-scoring G lung polymer material. Page 16 1238767 _Case No. 92123532_Year Month Date__ VI. Application for Patent Scope 1 4. The method described in Item 1 of the Patent Application Scope, where the foamed material can still be rolled on it after the foaming is completed. The surface is embossed, and then cooled, and then taken up by a wheel to produce a continuous sheet of continuous foam material. Page 17