阅读说明：本技术 一种抗静电防油耐高温的特殊离型纸及其制备方法 (Antistatic oil-proof high-temperature-resistant special release paper and preparation method thereof ) 是由 於险峰 于 2020-03-24 设计创作，主要内容包括：本发明提供了一种抗静电防油耐高温的特殊离型纸及其制备方法,所述特殊离型纸包括干燥纸页、淋膜层,粘胶层、耐高温层、防油抗静电层和离型剂层；所述淋膜层和粘胶层分别在所述干燥纸页的两侧,所述粘胶层上依次为耐高温层、防油抗静电层和离型剂层；所述干燥纸页按重量份含有以下原料：原纸浆料80-90份、聚对苯二甲酸乙二醇酯10-20份,山梨糖醇5-10份。本发明公开的制备方法有效提高了离型纸的抗静电性能,耐高温性能以及柔韧性,适合化工领域和机电领域使用。(The invention provides antistatic oil-proof high-temperature-resistant special release paper and a preparation method thereof, wherein the special release paper comprises a dried paper sheet, a laminating layer, an adhesive layer, a high-temperature-resistant layer, an oil-proof antistatic layer and a release agent layer; the laminating layer and the adhesive layer are respectively arranged on two sides of the dried paper sheet, and the adhesive layer is sequentially provided with a high temperature resistant layer, an oil-proof antistatic layer and a mold release layer; the dry paper sheet comprises the following raw materials in parts by weight: 80-90 parts of base paper pulp, 10-20 parts of polyethylene terephthalate and 5-10 parts of sorbitol. The preparation method disclosed by the invention effectively improves the antistatic property, the high-temperature resistance and the flexibility of the release paper, and is suitable for the chemical field and the electromechanical field.)

1. The special anti-static oil-proof high-temperature-resistant release paper is characterized by comprising a dry paper sheet, a laminating layer, an adhesive layer, a high-temperature-resistant layer, an oil-proof anti-static layer and a release agent layer; the laminating layer and the adhesive layer are respectively arranged on two sides of the dried paper sheet, and the adhesive layer is sequentially provided with a high temperature resistant layer, an oil-proof antistatic layer and a mold release layer; the dry paper sheet comprises the following raw materials in parts by weight: 80-90 parts of base paper pulp, 10-20 parts of polyethylene terephthalate and 5-10 parts of sorbitol.

2. The special release paper with antistatic, oil-proof and high temperature resistance as claimed in claim 1, wherein the PE, PI and PET are used as the film coating layer.

3. The special release paper with the characteristics of static resistance, oil resistance and high temperature resistance according to claim 1, wherein the oil-resistant and static-resistant layer is prepared from the following raw materials in parts by weight:

acrylic UV resin 100 parts

20-40 parts of sodium p-styrene sulfonate

20-30 parts of potassium stearate stabilizer

15-25 parts of polyacrylate leveling agent

10-15 parts of nano titanium dioxide

5-10 parts of silicate ester

5-10 parts of silane coupling agent

3-8 parts of isopropanol

3-8 parts of dibutyl dilaurate.

4. The special release paper with the characteristics of static resistance, oil resistance and high temperature resistance according to claim 3, wherein the oil-resistant and static-resistant layer is prepared from the following raw materials in parts by weight:

acrylic UV resin 100 parts

30 portions of sodium p-styrene sulfonate

25 parts of potassium stearate stabilizer

20 parts of polyacrylate leveling agent

12 portions of nano titanium dioxide

Silicate ester 8 parts

Silane coupling agent 8 parts

5 portions of isopropanol

5 parts of dibutyl dilaurate.

5. The special release paper with the characteristics of static resistance, oil resistance and high temperature resistance according to claim 1, wherein the high temperature resistant layer is composed of a high temperature resistant auxiliary agent and aluminum phosphate powder; the high-temperature resistant auxiliary agent is one or two of nano silicon dioxide and nano calcium carbonate.

6. The special release paper with the characteristics of static resistance, oil resistance and high temperature resistance according to claim 4, wherein the mass ratio of the high temperature resistant auxiliary agent to the aluminum phosphate powder is 1: 5.

7. The special release paper with antistatic, oil-proof and high temperature resistance as claimed in claim 1, wherein the release agent layer is composed of 5-10 parts by weight of polyether modified silicone oil, 3-5 parts by weight of silicate ester, 3-5 parts by weight of magnesium stearate, and 2-4 parts by weight of chlorinated paraffin 70.

8. The preparation method of the antistatic oil-proof high temperature resistant special release paper according to any one of claims 1 to 7, characterized by comprising the following steps:

i: cutting the dried paper into a required size, and horizontally unfolding the dried paper;

II: a film coating machine is used for coating a film coating layer on the front surface of the dry paper sheet, and the dry paper sheet is turned over after the film coating layer is dried;

III: coating an adhesive layer on the other side of the dried paper sheet, and adding a high temperature resistant layer on the surface of the adhesive layer;

IV: coating an oil-proof antistatic layer on the high-temperature-resistant layer, and then performing corona treatment;

v: and (3) coating a layer of release agent on the surface of the oil-proof antistatic layer, and finally drying the coated paper at 40-60 ℃ for 1-2 minutes to obtain the special release paper.

9. The method for preparing the antistatic oil-proof high temperature resistant special release paper according to claim 8, characterized in that in the step III, an HDPE layer is further coated between the dried paper sheet and the adhesive layer.

10. The preparation method of the special release paper with the characteristics of static resistance, oil resistance and high temperature resistance according to claim 8, characterized in that the coating weight of the oil-resistant and antistatic layer is 0.3-0.5g/m²The thickness of the dry paper sheet is 65-120g/m²。

Technical Field

The invention relates to the field of release paper, in particular to antistatic oil-proof high-temperature-resistant special release paper and a preparation method thereof.

Technical Field

The release paper is anti-sticking paper which can prevent the adhesion of the prepreg and can also protect the prepreg from being polluted. The release paper should satisfy: the prepreg can be stuck, but the prepreg and the prepreg are easy to separate; does not chemically react with or contaminate the resin system; when the temperature and the humidity of the environment change, the length and the width of the release paper are kept unchanged so as to prevent the prepreg from wrinkling caused by wrinkling of the release paper; should be sufficiently dense to prevent moisture from entering the prepreg through it; the elongation of the release paper after being pulled is consistent with that of the fiber, so that the prepreg is prevented from deforming or distorting due to asynchronous drawing in the preparation process; the thickness and the mass per unit area of the device are not easy to be accurately controlled. At present, domestic release paper on the market has antistatic release paper, also has oil-proof release paper, also has high temperature resistant release paper, but has the above-mentioned function simultaneously from type paper but few, but in chemical industry or electromechanical field, because operational environment's is abominable, is very big to the demand that has the above-mentioned advantage simultaneously from type paper.

Disclosure of Invention

Aiming at the defects, the invention provides the antistatic oil-proof high-temperature-resistant special release paper and the preparation method thereof, which effectively improve the antistatic property, the high-temperature resistance and the flexibility of the release paper and are suitable for the chemical field and the electromechanical field.

In order to achieve the purpose, the invention provides the following technical scheme:

the special anti-static oil-proof high-temperature-resistant release paper comprises a dry paper sheet, a laminating layer, an adhesive layer, a high-temperature-resistant layer, an oil-proof anti-static layer and a release agent layer; the laminating layer and the adhesive layer are respectively arranged on two sides of the dried paper sheet, and the adhesive layer is sequentially provided with a high temperature resistant layer, an oil-proof antistatic layer and a mold release layer; the dry paper sheet comprises the following raw materials in parts by weight: 80-90 parts of base paper pulp, 10-20 parts of polyethylene terephthalate and 5-10 parts of sorbitol.

Further, the special release paper with antistatic property, oil resistance and high temperature resistance is characterized in that the laminating layer is made of one or more raw materials of PE, PI and PET.

Further, the antistatic oil-proof high temperature resistant special release paper comprises the following raw materials in parts by weight:

further, the antistatic oil-proof high temperature resistant special release paper comprises the following raw materials in parts by weight:

further, according to the antistatic oil-proof high-temperature-resistant special release paper, the high-temperature-resistant layer is composed of a high-temperature-resistant auxiliary agent and aluminum phosphate powder; the high-temperature resistant auxiliary agent is one or two of nano silicon dioxide and nano calcium carbonate.

Further, the antistatic oil-proof high-temperature-resistant special release paper has the advantages that the mass ratio of the high-temperature-resistant auxiliary agent to the phosphate aluminum powder is 1: 5.

Further, the special release paper with antistatic property, oil resistance and high temperature resistance is characterized in that the release agent layer is composed of 5-10 parts by weight of polyether modified silicone oil, 3-5 parts by weight of silicate ester, 3-5 parts by weight of magnesium stearate and 2-4 parts by weight of chlorinated paraffin 70.

Further, the preparation method of the antistatic oil-proof high-temperature-resistant special release paper comprises the following steps:

i: cutting the dried paper into required size, and horizontally spreading the dried paper

II: a film coating machine is used for coating a film coating layer on the front surface of the dry paper sheet, and the dry paper sheet is turned over after the film coating layer is dried;

III: coating an adhesive layer on the other side of the dried paper sheet, and adding a high temperature resistant layer on the surface of the adhesive layer;

IV: coating an oil-proof antistatic layer on the high-temperature-resistant layer, and then performing corona treatment;

v: and (3) coating a layer of release agent on the surface of the oil-proof antistatic layer, and finally drying the coated paper at 40-60 ℃ for 1-2 minutes to obtain the special release paper.

Further, in the preparation method of the antistatic oil-proof high-temperature-resistant special release paper, in the step III, an HDPE layer is further coated between the dried paper sheet and the adhesive layer.

Further, in the preparation method of the antistatic oil-proof high-temperature-resistant special release paper, the coating weight of the oil-proof antistatic layer is 0.3-0.5g/m²The thickness of the dry paper sheet is 65-120g/m²。

According to the technical scheme, the preparation method disclosed by the invention is simple and feasible, has low cost, and has good high-temperature resistance by adding the high-temperature-resistant auxiliary agent, and meanwhile, the product has antistatic and oil-proof properties by adding the composite antistatic and oil-proof layer, and meanwhile, the strength and the pulling force of the special release paper disclosed by the invention are unexpectedly found to be greatly improved, so that the special release paper is very suitable for being used in the fields of chemical industry and electromechanics.

Detailed Description

The invention will be further elucidated by means of several specific examples, which are intended to be illustrative only and not limiting.