阅读说明：本技术 新型缓冲垫 (Novel buffer cushion ) 是由 唐帅 于 2019-11-29 设计创作，主要内容包括：本发明公开一种新型缓冲垫,从上往下依次包括：表层,所述表层包括聚四氟乙烯层、玻璃纤维布层以及内部含有气孔氟橡胶层；第一厚布层,所述第一厚布层由玻璃纤维布浸渍于液态氟橡胶中固化后制得；第一薄布层,所述第一薄布层为内部含有气孔的氟橡胶；第二厚布层；第二薄布层；第三厚布层；第三薄布层；第四厚布层；第四薄布层；第五厚布层；第五薄布层；第六厚布层。该新型缓冲垫由玻璃纤维和含气孔的氟橡胶组成,具有优良缓冲性能,良好耐热性(可在240℃高温下长期使用)和低形变率等突出优点,是超越传统压合垫和牛皮纸的高性能缓冲垫材。(The invention discloses a novel cushion pad, which sequentially comprises the following components from top to bottom: the surface layer comprises a polytetrafluoroethylene layer, a glass fiber cloth layer and a fluororubber layer with air holes inside; the first thick cloth layer is prepared by soaking glass fiber cloth in liquid fluororubber and curing; a first thin cloth layer which is made of fluororubber containing air holes inside; a second thick cloth layer; a second thin cloth layer; a third thick cloth layer; a third thin cloth layer; a fourth thick cloth layer; a fourth fabric layer; a fifth thick cloth layer; a fifth cloth layer; and a sixth thick cloth layer. The novel cushion pad is composed of glass fiber and fluororubber containing air holes, has the outstanding advantages of excellent cushion performance, good heat resistance (capable of being used at high temperature of 240 ℃ for a long time), low deformation rate and the like, and is a high-performance cushion pad material superior to the traditional press-fit pad and kraft paper.)

1. Novel blotter, its characterized in that down includes from last in proper order:

the surface layer (10), the said surface layer (10) includes polytetrafluoroethylene layer (11), glass fiber cloth layer (12) and the inside contains the fluoro-rubber layer (13) of the air pocket;

the first thick cloth layer (20), the first thick cloth layer (20) is prepared by dipping glass fiber cloth in liquid fluororubber and curing;

a first thin cloth layer (81), wherein the first thin cloth layer (81) is made of fluororubber containing air holes inside;

the second thick cloth layer (30), the said second thick cloth layer (30) is soaked in liquid fluororubber by the glass fibre cloth and solidified to get final product;

a second thin cloth layer (82), wherein the second thin cloth layer (82) is made of fluororubber containing air holes inside;

the third thick cloth layer (40), the third thick cloth layer (40) is prepared by dipping glass fiber cloth in liquid fluororubber and curing;

a third thin cloth layer (83), wherein the third thin cloth layer (83) is made of fluororubber containing air holes inside;

the fourth thick cloth layer (50) is prepared by soaking glass fiber cloth in liquid fluororubber and curing;

a fourth thin cloth layer (84), wherein the fourth thin cloth layer (84) is made of fluororubber containing air holes inside;

the fifth thick cloth layer (60) is prepared by soaking glass fiber cloth in liquid fluororubber and curing;

a fifth thin cloth layer (85), wherein the fifth thin cloth layer (85) is made of fluororubber containing air holes inside;

and the sixth thick cloth layer (70), wherein the sixth thick cloth layer (70) is prepared by soaking glass fiber cloth in liquid fluororubber and curing.

2. The new cushion as claimed in claim 1, wherein the polytetrafluoroethylene layer (11) is disposed above the fiberglass cloth layer (12), and a portion of the polytetrafluoroethylene penetrates into the fiberglass cloth layer (12).

3. The novel cushion pad as claimed in claim 1, wherein the internal air hole-containing fluororubber layer (13) is provided below the glass fiber cloth layer (12), and part of the air hole-containing fluororubber penetrates into the glass fiber cloth layer (12).

4. The novel cushion pad as claimed in claim 1, wherein the voids between the glass fiber cloths of the first thick cloth layer (20) are filled with the fluororubber having the pores therein, the voids between the glass fiber cloths of the second thick cloth layer (30) are filled with the fluororubber having the pores therein, the voids between the glass fiber cloths of the third thick cloth layer (40) are filled with the fluororubber having the pores therein, the voids between the glass fiber cloths of the fourth thick cloth layer (50) are filled with the fluororubber having the pores therein, the voids between the glass fiber cloths of the fifth thick cloth layer (60) are filled with the fluororubber having the pores therein, and the voids between the glass fiber cloths of the sixth thick cloth layer (70) are filled with the fluororubber having the pores therein.

5. The novel cushioning pad according to claim 1, characterized in that the weight ratio of the first thick cloth layer (20) to the first thin cloth layer (81) is 4:3, the weight of the second thick cloth layer (30), the third thick cloth layer (40), the fourth thick cloth layer (50), the fifth thick cloth layer (60) and the sixth thick cloth layer (70) is the same as the first thick cloth layer, and the weight of the second thin cloth layer (82), the third thin cloth layer (83), the fourth thin cloth layer (84) and the fifth thin cloth layer (85) is the same as the first thin cloth layer (81).

6. The novel crash pad as set forth in claim 1, wherein the crash pad has a ratio (a: b) of a compression thickness deformation (a) obtained by subtracting a compression thickness dimension (H2) when a predetermined extrusion pressure is applied from an initial thickness dimension (H1) to a rebound thickness deformation (b) obtained by subtracting the compression thickness dimension (H2) from a decompression thickness dimension (H3) when the extrusion pressure is removed, of 0.7 to 0.75.

7. The new cushion as claimed in claim 1, wherein the polytetrafluoroethylene layer (11) is provided above the fiberglass cloth layer (12), and a portion of the polytetrafluoroethylene penetrates into the fiberglass cloth layer (12); the internal air-hole-containing fluororubber layer (13) is arranged below the glass fiber cloth layer (12), and part of the internal air-hole-containing fluororubber permeates into the glass fiber cloth layer (12).

8. The new cushion as claimed in claim 7, wherein the polytetrafluoroethylene permeating the glass fiber cloth layer (12) and the fluororubber containing pores permeating the glass fiber cloth layer (12) are not in contact.

9. The new crash pad as claimed in claim 7, characterized in that the ratio of the porosity of the glass fiber cloth with polytetrafluoroethylene and fluororubber in the polytetrafluoroethylene layer (11) to the porosity without polytetrafluoroethylene and fluororubber is 20-50%.

Technical Field

The invention relates to the technical field of hot-pressing buffer materials, in particular to a novel buffer pad.

Background

In the process of manufacturing a laminate such as a printed circuit board, in the step of press forming and thermocompression bonding, a laminate material to be pressed is sandwiched between hot plates serving as a heating and pressing mechanism, and a certain pressure and heat are applied. In order to obtain a molded article with high accuracy, it is necessary to perform hot pressing by interposing a flat plate-like cushioning material between a hot plate and a laminate material in order to uniformize the heat and pressure applied to the laminate material over the entire surface in the hot pressing.

Disclosure of Invention

The invention aims to provide a novel cushion pad, which sequentially comprises the following components from top to bottom:

the surface layer comprises a polytetrafluoroethylene layer, a glass fiber cloth layer and a fluororubber layer with air holes inside;

the first thick cloth layer is prepared by soaking glass fiber cloth in liquid fluororubber and curing;

a first thin cloth layer which is made of fluororubber containing air holes inside;

the second thick cloth layer is prepared by soaking glass fiber cloth in liquid fluororubber and curing;

a second thin cloth layer which is made of fluororubber containing air holes inside;

the third thick cloth layer is prepared by soaking glass fiber cloth in liquid fluororubber and curing;

a third thin cloth layer which is made of fluororubber containing air holes inside;

the fourth thick cloth layer is prepared by soaking glass fiber cloth in liquid fluororubber and curing;

a fourth thin fabric layer which is made of fluororubber containing air holes therein;

the fifth thick cloth layer is prepared by soaking glass fiber cloth in liquid fluororubber and curing;

a fifth thin cloth layer, wherein the fifth thin cloth layer is made of fluororubber containing air holes inside;

and the sixth thick cloth layer is prepared by soaking glass fiber cloth in liquid fluororubber and curing.

In some embodiments, a polytetrafluoroethylene layer is disposed over the fiberglass cloth layer, and a portion of the polytetrafluoroethylene penetrates the fiberglass cloth layer.

In some embodiments, the internal air hole-containing fluororubber layer is arranged below the glass fiber cloth layer, and part of the air hole-containing fluororubber permeates the glass fiber cloth layer.

In some embodiments, the voids between the glass fiber cloths of the first thick cloth layer are filled with the internal porous fluororubber, the voids between the glass fiber cloths of the second thick cloth layer are filled with the internal porous fluororubber, the voids between the glass fiber cloths of the third thick cloth layer are filled with the internal porous fluororubber, the voids between the glass fiber cloths of the fourth thick cloth layer are filled with the internal porous fluororubber, the voids between the glass fiber cloths of the fifth thick cloth layer are filled with the internal porous fluororubber, and the voids between the glass fiber cloths of the sixth thick cloth layer are filled with the internal porous fluororubber.

In some embodiments, the weight ratio of the first thick cloth layer to the first thin cloth layer is 4:3, the second, third, fourth, fifth and sixth thick cloth layers have the same weight as the first thick cloth layer, and the second, third, fourth and fifth thin cloth layers have the same weight as the first thin cloth layer.

In some embodiments, the cushion pad has a ratio (a: b) of a compression thickness deformation (a) obtained by subtracting a compression thickness dimension (H2) when a predetermined extrusion pressure is applied from an initial thickness dimension (H1) to a rebound thickness deformation (b) obtained by subtracting the compression thickness dimension (H2) from a decompression thickness dimension (H3) when the extrusion pressure is removed, of 0.7 to 0.75.

In some embodiments, a polytetrafluoroethylene layer is disposed above the glass fiber cloth layer, and a portion of the polytetrafluoroethylene permeates the glass fiber cloth layer; the internal porous fluororubber layer is arranged below the glass fiber cloth layer, and part of the internal porous fluororubber is infiltrated into the glass fiber cloth layer.

In some embodiments, the polytetrafluoroethylene permeating the glass fiber cloth layer and the air-hole-containing fluororubber permeating the glass fiber cloth layer do not contact.

In some embodiments, the ratio of the porosity of the glass fiber cloth having polytetrafluoroethylene and fluororubber in the polytetrafluoroethylene layer to the porosity not having polytetrafluoroethylene and fluororubber is 20 to 50%.

Has the advantages that:

the novel cushion pad provided by the invention is composed of glass fiber and fluororubber containing air holes, has the outstanding advantages of excellent cushion performance, good heat resistance (capable of being used at a high temperature of 240 ℃ for a long time), low deformation rate and the like, and is a high-performance cushion pad material superior to the traditional press pad and kraft paper.

Drawings

FIG. 1 is a schematic view of a novel cushion according to an embodiment of the present invention;

FIG. 2 is a schematic view of the structure of the surface layer of the novel cushion pad according to one embodiment of the present invention;

FIG. 3 is a schematic view of a first thick cloth layer of the novel cushion pad according to an embodiment of the present invention;

FIG. 4 is a schematic illustration of the rebound of the novel cushion in accordance with an embodiment of the present invention;

FIG. 5 is a thickness variation of the novel cushion of one embodiment of the present invention;

FIG. 6 is a graph illustrating the cushioning properties of the novel cushion in accordance with one embodiment of the present invention.

Detailed Description

The following examples further illustrate the present invention in detail.