CN109334167A - Silicagel pad and preparation method thereof - Google Patents

Silicagel pad and preparation method thereof Download PDF

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Publication number
CN109334167A
CN109334167A CN201811100439.6A CN201811100439A CN109334167A CN 109334167 A CN109334167 A CN 109334167A CN 201811100439 A CN201811100439 A CN 201811100439A CN 109334167 A CN109334167 A CN 109334167A
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China
Prior art keywords
silicagel pad
glass fibre
base fabric
fibre base
silica gel
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Pending
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CN201811100439.6A
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Chinese (zh)
Inventor
张彩盼
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SUZHOU AOKE RUBBER TECHNOLOGY Co Ltd
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SUZHOU AOKE RUBBER TECHNOLOGY Co Ltd
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Priority to CN201811100439.6A priority Critical patent/CN109334167A/en
Publication of CN109334167A publication Critical patent/CN109334167A/en
Pending legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00—Mixing; Kneading
    • B29B7/002—Methods
    • B29B7/005—Methods for mixing in batches
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00—Mixing; Kneading
    • B29B7/02—Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type
    • B29B7/06—Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type with movable mixing or kneading devices
    • B29B7/10—Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type with movable mixing or kneading devices rotary
    • B29B7/18—Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type with movable mixing or kneading devices rotary with more than one shaft
    • B29B7/183—Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type with movable mixing or kneading devices rotary with more than one shaft having a casing closely surrounding the rotors, e.g. of Banbury type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
    • B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
    • B29C35/04—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould using liquids, gas or steam
    • B29C35/045—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould using liquids, gas or steam using gas or flames
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/22—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of indefinite length
    • B29C43/24—Calendering
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/28—Shaping operations therefor
    • B29C70/40—Shaping or impregnating by compression not applied
    • B29C70/42—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
    • B32B17/063—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of rubber
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B25/00—Layered products comprising a layer of natural or synthetic rubber
    • B32B25/10—Layered products comprising a layer of natural or synthetic rubber next to a fibrous or filamentary layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B25/00—Layered products comprising a layer of natural or synthetic rubber
    • B32B25/20—Layered products comprising a layer of natural or synthetic rubber comprising silicone rubber
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
    • B32B3/10—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material
    • B32B3/12—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material characterised by a layer of regularly- arranged cells, e.g. a honeycomb structure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B38/00—Ancillary operations in connection with laminating processes
    • B32B38/14—Printing or colouring
    • B32B38/145—Printing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B38/00—Ancillary operations in connection with laminating processes
    • B32B38/16—Drying; Softening; Cleaning
    • B32B38/164—Drying
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L83/00—Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon only; Compositions of derivatives of such polymers
    • C08L83/04—Polysiloxanes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
    • B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
    • B29C35/04—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould using liquids, gas or steam
    • B29C35/045—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould using liquids, gas or steam using gas or flames
    • B29C2035/046—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould using liquids, gas or steam using gas or flames dried air
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B38/00—Ancillary operations in connection with laminating processes
    • B32B38/16—Drying; Softening; Cleaning
    • B32B38/164—Drying
    • B32B2038/166—Removing moisture
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/10—Inorganic fibres
    • B32B2262/101—Glass fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B32B2307/54—Yield strength; Tensile strength
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B32B2307/582—Tearability
    • B32B2307/5825—Tear resistant
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
    • C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Thermal Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Composite Materials (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Laminated Bodies (AREA)

Abstract

The invention discloses a kind of silicagel pad and preparation method thereof, including glass fibre base fabric, layer of silica gel is attached in the glass fibre base fabric, the glass fibre base fabric is grid cloth structure, and the size of its mesh is 18-30 mesh, and production method includes a) being coated with；B) it is kneaded；C) roll；D) vulcanize；F) silk-screen printing；G) side is sprayed；H) it toasts.Using the glass fibre base fabric of the mesh of 18-30 mesh in the present invention, while capable of having support inside silicagel pad, solid-state silica gel can be such that as far as possible layer of silica gel is interspersed in glass fibre base fabric by way of cooperation calendering, inseparable with glass fibre base fabric is integrally formed, to be avoided that delamination, and tear-resistant is set to break, tearing strength raising.

Description

Silicagel pad and preparation method thereof
Technical field
The present invention relates to a kind of silicagel pads and preparation method thereof.
Background technique
In traditional food cooking, baking operation, common paper or aluminium foil are generallyd use as boiling and baking Food it is rebasing；Or any rebasing and boiling, baked goods directly on baking tray is not added.The former is after use, as pad The paper at bottom is often bonded together almost inseparablely with food and is difficult to strip it from food, and even if rebasing Paper be stripped, as a result can on paper subsidiary food, cause unnecessary waste；The latter on baking tray then due to seriously leaving The residues such as grease stain cause to clean brought trouble.
To solve the above problems, anti-sticking, the high-temperature stability that silicon rubber has just is utilized in people, it is processed into silica gel paper work To be rebasing on baking tray, this can be seen in disclosed document.Such as: China Patent Publication No. CN1435533A discloses silicon Gummed paper, the technical solution of preparation method and its purposes in boiling and baked goods are to reinforce silicon rubber system with glass fibre At silica gel paper replace traditional paper as rebasing.It substantially can solve deficiency above-mentioned, but there are still have following shortcoming: Firstly, its recommended glass layer be it is close knit plain cloth, thread count is very high, via press by two layers silastic-layer with The constituted structure of toasted molding shows sandwich formats (Instructions Page 9 and embodiment 1- again after glass layer fitting 4), delamination is be easy to cause under long-term high-temperature baking repeatedly and cleaning；Secondly, the production work instructed by its patent specification Skill, the glass fibre that will lead to four sides in the cutting process to manufactured goods are completely exposed, and glass fibers can be made in practical process Dimension is detached from, and not only causes food pollution, but also in human body nocuousness；Third, tear-resistant is disconnected, tearing strength is low；4th, by machine pressure in a manner of by Piece production, does not have continuous production, causes production efficiency low.
Summary of the invention
To overcome disadvantages mentioned above, one of the objects of the present invention is to provide one kind will not delamination, tear-resistant split, tearing strength it is excellent Different silicagel pad.The second object of the present invention is to provide a kind of production method matched with the first purpose.
One of in order to reach the goals above, the technical solution adopted by the present invention is that: a kind of silicagel pad, including it is fiberglass-based Cloth, is attached with layer of silica gel in the glass fibre base fabric, and the glass fibre base fabric is grid cloth structure, and the size of its mesh For 18-30 mesh.
Preferably, the layer of silica gel uses food-grade solid-state silica gel.
Preferably, frosted layer is equipped on the outside of the layer of silica gel.
In order to reach the goals above two, the technical solution adopted by the present invention is that: a kind of production method of silicagel pad, including Following steps:
A) it is coated with, is coated with setting agent on the two sides of glass fibre base fabric, is dried for standby；
B) it is kneaded, is kneaded out solid-state silica gel；
C) roll, the two sides that solid-state silica gel is attached to the glass fibre base fabric for coating adhesive by calender pressure is formed into silicon Rubber mat semi-finished product；
D) vulcanize, silicagel pad semi-finished product are put into drying tunnel drying；
F) silk-screen printing prints out the pattern and frame of needs on the silicagel pad semi-finished product through over cure；
G) side is sprayed, sprays upper liquid-state silicon gel at the edge of the silicagel pad semi-finished product Jing Guo silk-screen printing；
H) it toasts, the silicagel pad semi-finished product for having sprayed liquid-state silicon gel is put into oven and are dried.
Preferably, it is 100 parts of methyl vinyl silicone rubber, gas that the solid-state silica gel in the step b), which is with parts by weight, 30-70 parts of phase method white carbon black, α, obtain melting silicone rubber by mixer mixing, then mix by 6-15 parts of alpha, omega-dihydroxy dimethyl siloxane The 1% linear methyl containing hydrogen silicone oil and Pt catalyst for refining silicon rubber weight are obtained by mixer mixing.
Preferably, 0.01%-0.5% pigment can also be added in the step b).
Preferably, the roller of calender described in the step c) is processed into the frosting of needs by texture.
Preferably, direct hot-air cure is used in the step d)；Curing temperature is 150-200 in the step d) ℃；Silicagel pad semi-finished product pass through drying tunnel with the speed of 0.3-2.0m/s in the step d).
Preferably, the baking temperature in the step h) is 150-250 DEG C；Baking time in the step h) is 1.5- 2.5h。
Beneficial effects of the present invention: using the glass fibre base fabric of the mesh of 18-30 mesh, first with setting agent to glass fibre Base fabric sizing makes can have support inside silicagel pad, then makes food-grade solid-state silica gel as far as possible by way of cooperation calendering Layer of silica gel is interspersed in glass fibre base fabric, and inseparable with glass fibre base fabric is integrally formed, so that it is avoided that delamination, and And tear-resistant is set to break, tearing strength raising.
Detailed description of the invention
Fig. 1 is main view of the invention.
In figure:
1- glass fibre base fabric；2- layer of silica gel.
Specific embodiment
The preferred embodiments of the present invention will be described in detail with reference to the accompanying drawing, so that advantages and features of the invention energy It is easier to be readily appreciated by one skilled in the art, so as to make a clearer definition of the protection scope of the present invention.
[embodiment one]:
A) it is coated with, is coated with liquid-state silicon gel on the two sides for the glass fibre base fabric 1 that the size of mesh is 24 mesh, dries standby With；
B) it is kneaded, is 100 parts of methyl vinyl silicone rubber, 50 parts of fume colloidal silica, 10 parts with parts by weight α, alpha, omega-dihydroxy dimethyl siloxane obtain melting silicone rubber, then 0.8 part of line of melting silicone rubber weight by mixer mixing Property Methyl Hydrogen Polysiloxane Fluid and 0.8 part of Pt catalyst (the sum of linear methyl containing hydrogen silicone oil and Pt catalyst are silicon rubber weight 1%) food-grade solid-state silica gel is obtained by mixer mixing；
C) roll, the two sides that solid-state silica gel is attached to the glass fibre base fabric 1 for coating adhesive by calender pressure is formed Silicagel pad semi-finished product；
D) vulcanize, by silicagel pad semi-finished product with the speed of 1.5m/s by drying tunnel, using direct hot-air cure, vulcanization temperature Degree is 175 DEG C；
F) silk-screen printing prints out the pattern and frame of needs on the silicagel pad semi-finished product through over cure；
G) side is sprayed, sprays upper liquid-state silicon gel at the edge of the silicagel pad semi-finished product Jing Guo silk-screen printing；
H) it toasts, the silicagel pad semi-finished product for having sprayed liquid-state silicon gel is put into oven and are dried, baking temperature is 200 DEG C；It is described Baking time in step h) is 2h, and baking completes that silicagel pad is made after taking out, as shown in Figure 1, include glass fibre base fabric 1, Layer of silica gel 2 is attached in the glass fibre base fabric 1, the glass fibre base fabric 1 is grid cloth structure.
In order to make silicagel pad stack place when will not stick to each other, the roller of calender is processed into needs by texture Frosting so that the surface for the silicagel pad being made into is frosted shape, while keeping finished product more good-looking and rich in feel.
[embodiment two]:
A) it is coated with, is coated with liquid-state silicon gel on the two sides for the glass fibre base fabric 1 that the size of mesh is 18 mesh, is dried for standby；
B) it is kneaded, is 100 parts of methyl vinyl silicone rubber, 70 parts of fume colloidal silica, α, alpha, omega-dihydroxy with parts by weight 6 parts of dimethyl siloxane, melting silicone rubber is obtained by mixer mixing, then 0.4 part of linear methyl of melting silicone rubber weight contains (quality sum of linear methyl containing hydrogen silicone oil and Pt catalyst is silicon rubber weight for hydrogen silicone oil and 1.36 parts of Pt catalyst 1%) food-grade solid-state silica gel is obtained by mixer mixing；
C) roll, the two sides that solid-state silica gel is attached to the glass fibre base fabric 1 for coating adhesive by calender pressure is formed Silicagel pad semi-finished product；
D) vulcanize, by silicagel pad semi-finished product with the speed of 0.3m/s by drying tunnel, using direct hot-air cure, vulcanization temperature Degree is 200 DEG C；
F) silk-screen printing prints out the pattern and frame of needs on the silicagel pad semi-finished product through over cure；
G) side is sprayed, sprays upper liquid-state silicon gel at the edge of the silicagel pad semi-finished product Jing Guo silk-screen printing；
H) it toasts, the silicagel pad semi-finished product for having sprayed liquid-state silicon gel is put into oven and are dried, baking temperature is 150 DEG C；It is described Baking time in step h) is 1.5h, and baking completes that silicagel pad is made after taking out, as shown in Figure 1, including glass fibre base fabric 1, layer of silica gel 2 is attached in the glass fibre base fabric 1, the glass fibre base fabric 1 is grid cloth structure.
In order to there is finished product, color is more good-looking, when mixing in 0.0176 part of pigment being also added (account for total solid-state silica gel The 0.01% of amount).
[embodiment three]:
A) it is coated with, is coated with liquid-state silicon gel on the two sides for the glass fibre base fabric 1 that the size of mesh is 30 mesh, is dried for standby；
B) it is kneaded, is 100 parts of methyl vinyl silicone rubber, 30 parts of fume colloidal silica, α, alpha, omega-dihydroxy with parts by weight 15 parts of dimethyl siloxane, melting silicone rubber is obtained by mixer mixing, 1.05 parts of linear methyl of melting silicone rubber weight contains (quality sum of linear methyl containing hydrogen silicone oil and Pt catalyst is silicon rubber weight for hydrogen silicone oil and 0.4 part of Pt catalyst 1%) food-grade solid-state silica gel is obtained by mixer mixing；
C) roll, the two sides that solid-state silica gel is attached to the glass fibre base fabric 1 for coating adhesive by calender pressure is formed Silicagel pad semi-finished product；
D) vulcanize, by silicagel pad semi-finished product with the speed of 2.0m/s by drying tunnel, using direct hot-air cure, vulcanization temperature Degree is 200 DEG C；
F) silk-screen printing prints out the pattern and frame of needs on the silicagel pad semi-finished product through over cure；
G) side is sprayed, sprays upper liquid-state silicon gel at the edge of the silicagel pad semi-finished product Jing Guo silk-screen printing；
H) it toasts, the silicagel pad semi-finished product for having sprayed liquid-state silicon gel is put into oven and are dried, baking temperature is 250 DEG C；It is described Baking time in step h) is 2.5h, and baking completes that silicagel pad is made after taking out, as shown in Figure 1, including glass fibre base fabric 1, layer of silica gel 2 is attached in the glass fibre base fabric 1, the glass fibre base fabric 1 is grid cloth structure.
In order to there is finished product, color is more good-looking, when mixing in 0.725 part of pigment being also added (account for total solid-state silica gel amount 0.5%).
By the silicagel pad in embodiment 1-3 according to the requirement of GB4806.1-1994 " foodstuff rubber products sanitary standard " Carry out following test:
Above-listed result proves: silicagel pad of the invention meets the safety requirements of foodstuff rubber products sanitary standard.Therefore Silicagel pad of the invention can be widely used in the field that food has contact.
Silicagel pad in embodiment 1-3 has been carried out to the survey of following tearing strength according to the requirement of GB/T 3917.1 1 199 It tries and zonal testing is carried out using microwave:
Serial number Tearing strength (N) Layering
Embodiment 1 902 Without layering
Embodiment 2 850 Without layering
Embodiment 3 809 Without layering
It is above-listed the results show that silicagel pad of the invention has extraordinary tearing strength, tear-resistant is split beneficial, will not be taken off Layer.
The technical concepts and features of embodiment of above only to illustrate the invention, its object is to allow be familiar with technique People understands the contents of the present invention and is implemented, and it is not intended to limit the scope of the present invention, all spiritual according to the present invention The equivalent change or modification that essence is done, should be covered by the scope of protection of the present invention.

Claims (8)

1. a kind of silicagel pad, including glass fibre base fabric (1), it is characterised in that: be attached with silicon on the glass fibre base fabric (1) Glue-line (2), the glass fibre base fabric (1) is grid cloth structure, and the size of its mesh is 18-30 mesh.
2. silicagel pad according to claim 1, it is characterised in that: the layer of silica gel (2) uses food-grade solid-state silica gel.
3. the production method of silicagel pad described in claim 1, it is characterised in that include the following steps:
A) it is coated with, is coated with setting agent on the two sides of glass fibre base fabric (1), is dried for standby；
B) it is kneaded, is kneaded out solid-state silica gel；
C) roll, the two sides that solid-state silica gel is attached to the glass fibre base fabric (1) for coating adhesive by calender pressure forms silicon Rubber mat semi-finished product；
D) vulcanize, silicagel pad semi-finished product are put into drying tunnel drying；
F) silk-screen printing prints out the pattern and frame of needs on the silicagel pad semi-finished product through over cure；
G) side is sprayed, sprays upper liquid-state silicon gel at the edge of the silicagel pad semi-finished product Jing Guo silk-screen printing；
H) it toasts, the silicagel pad semi-finished product for having sprayed liquid-state silicon gel is put into oven and are dried.
4. the production method of silicagel pad according to claim 3, it is characterised in that: the solid-state silica gel in the step b) is It is 100 parts of methyl vinyl silicone rubber, 30-70 parts of fume colloidal silica, α, alpha, omega-dihydroxy dimethyl siloxane with parts by weight 6-15 parts, melting silicone rubber is obtained by mixer mixing, then the 1% linear methyl containing hydrogen silicone oil and Pt of melting silicone rubber weight are urged Agent is obtained by mixer mixing.
5. the production method of silicagel pad according to claim 4, it is characterised in that: can be also added in the step b) 0.01%-0.5% pigment.
6. the production method of silicagel pad according to claim 3, it is characterised in that: calender described in the step c) Roller is processed into the frosting of needs by texture.
7. the production method of silicagel pad according to claim 3, it is characterised in that: empty using directly heat in the step d) Gas vulcanization；Curing temperature is 150-200 DEG C in the step d)；Silicagel pad semi-finished product are in the step d) with 0.3-2.0m/s's Speed passes through drying tunnel.
8. the production method of silicagel pad according to claim 3, it is characterised in that: the baking temperature in the step h) is 150-250℃；Baking time in the step h) is 1.5-2.5h.
CN201811100439.6A 2018-09-20 2018-09-20 Silicagel pad and preparation method thereof Pending CN109334167A (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110819112A (en) * 2019-11-12 2020-02-21 庄加松 Preparation method of heat-resistant and aging-resistant silica gel baking pad with frosted surface
CN110948968A (en) * 2019-11-12 2020-04-03 王宁宁 Silica gel glass fiber frosted baking pad and preparation method thereof
CN112810288A (en) * 2021-01-15 2021-05-18 江苏彩阳环保科技有限公司 Bonding forming preparation process of grid glass fiber silica gel adhesive tape
CN113215826A (en) * 2021-04-09 2021-08-06 佛山道格科技有限公司 Silica gel fiber and preparation method and application thereof
CN113440356A (en) * 2021-07-26 2021-09-28 山东斐时文化科技有限公司 Preparation process and application of medical isolation pad filling material

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CN1435533A (en) * 2002-01-30 2003-08-13 Sar控股国际有限公司 Silicone rubber paper, method for making same and use thereof for cooking and baking food
CN1826906A (en) * 2006-02-10 2006-09-06 常熟市新华化工厂 Oven pad and its manufacturing process

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CN1435533A (en) * 2002-01-30 2003-08-13 Sar控股国际有限公司 Silicone rubber paper, method for making same and use thereof for cooking and baking food
CN1826906A (en) * 2006-02-10 2006-09-06 常熟市新华化工厂 Oven pad and its manufacturing process

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110819112A (en) * 2019-11-12 2020-02-21 庄加松 Preparation method of heat-resistant and aging-resistant silica gel baking pad with frosted surface
CN110948968A (en) * 2019-11-12 2020-04-03 王宁宁 Silica gel glass fiber frosted baking pad and preparation method thereof
CN112810288A (en) * 2021-01-15 2021-05-18 江苏彩阳环保科技有限公司 Bonding forming preparation process of grid glass fiber silica gel adhesive tape
CN113215826A (en) * 2021-04-09 2021-08-06 佛山道格科技有限公司 Silica gel fiber and preparation method and application thereof
CN113440356A (en) * 2021-07-26 2021-09-28 山东斐时文化科技有限公司 Preparation process and application of medical isolation pad filling material

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Application publication date: 20190215