CN111169121A - Rubber-like PVC hose and production method thereof - Google Patents

Rubber-like PVC hose and production method thereof Download PDF

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Publication number
CN111169121A
CN111169121A CN202010029287.6A CN202010029287A CN111169121A CN 111169121 A CN111169121 A CN 111169121A CN 202010029287 A CN202010029287 A CN 202010029287A CN 111169121 A CN111169121 A CN 111169121A
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pvc
parts
hose
resin
layer
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CN111169121B (en
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高云方
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Zhejiang Xinjie New Material Technology Co Ltd
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Zhejiang Xinjie New Material Technology Co Ltd
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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
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B1/00—Layered products having a non-planar shape
    • B32B1/08—Tubular products
    • 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
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • 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
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/12—Layered products comprising a layer of synthetic resin 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
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
    • 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
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
    • B32B27/20—Layered products comprising a layer of synthetic resin characterised by the use of special additives using fillers, pigments, thixotroping agents
    • 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
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
    • B32B27/22—Layered products comprising a layer of synthetic resin characterised by the use of special additives using plasticisers
    • 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
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
    • B32B27/304—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising vinyl halide (co)polymers, e.g. PVC, PVDC, PVF, PVDF
    • 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
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
    • 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
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/02—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by a sequence of laminating steps, e.g. by adding new layers at consecutive laminating stations
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/24—Acids; Salts thereof
    • C08K3/26—Carbonates; Bicarbonates
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L27/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers
    • C08L27/02—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L27/04—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment containing chlorine atoms
    • C08L27/06—Homopolymers or copolymers of vinyl chloride
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L11/00—Hoses, i.e. flexible pipes
    • F16L11/04—Hoses, i.e. flexible pipes made of rubber or flexible plastics
    • F16L11/08—Hoses, i.e. flexible pipes made of rubber or flexible plastics with reinforcements embedded in the wall
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L11/00—Hoses, i.e. flexible pipes
    • F16L11/04—Hoses, i.e. flexible pipes made of rubber or flexible plastics
    • F16L11/12—Hoses, i.e. flexible pipes made of rubber or flexible plastics with arrangements for particular purposes, e.g. specially profiled, with protecting layer, heated, electrically conducting
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L57/00—Protection of pipes or objects of similar shape against external or internal damage or wear
    • F16L57/06—Protection of pipes or objects of similar shape against external or internal damage or wear against wear
    • 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
    • B32B2262/02—Synthetic macromolecular fibres
    • B32B2262/0276—Polyester fibres
    • B32B2262/0284—Polyethylene terephthalate [PET] or polybutylene terephthalate [PBT]
    • 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
    • B32B2264/00—Composition or properties of particles which form a particulate layer or are present as additives
    • B32B2264/10—Inorganic particles
    • B32B2264/102—Oxide or hydroxide
    • 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
    • B32B2264/00—Composition or properties of particles which form a particulate layer or are present as additives
    • B32B2264/10—Inorganic particles
    • B32B2264/104—Oxysalt, e.g. carbonate, sulfate, phosphate or nitrate particles
    • 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
    • B32B2270/00—Resin or rubber layer containing a blend of at least two different polymers
    • 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
    • B32B2307/51—Elastic
    • 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
    • B32B2597/00—Tubular articles, e.g. hoses, pipes
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/24—Acids; Salts thereof
    • C08K3/26—Carbonates; Bicarbonates
    • C08K2003/265—Calcium, strontium or barium carbonate
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2203/00—Applications
    • C08L2203/18—Applications used for pipes
    • 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
    • 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
    • C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
    • C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)

Abstract

The invention discloses a rubber-like PVC (polyvinyl chloride) hose and a production method thereof, wherein the PVC hose comprises an inner layer, a net layer and an outer layer from inside to outside, wherein the inner layer and the outer layer are both made of PVC materials, and the PVC materials comprise the following components in parts by weight: 50 parts of HPVC resin; 50 parts of extinction PVC resin; 60-90 parts of DINCH; 4-6 parts of epoxidized soybean oil; 2-4 parts of a flatting agent; 8-14 parts of low temperature resistant modifier; 8-14 parts of tackifying resin; 1-1.4 parts of a stabilizer; 0-75 parts of calcium carbonate; 0.5-1.5 parts of lubricant. The formula of the PVC material is reasonably designed, so that the prepared PVC hose meets the international standard in environmental protection, has dry hand feeling, no oil stain precipitation, no odor and good sanitary performance, and can be used at the temperature of between 20 ℃ below zero and 80 ℃; on the other hand, the rubber hose has matte appearance, good rebound resilience, overall texture close to that of a rubber hose, easy acceptance by the old people and large market space.

Description

Rubber-like PVC hose and production method thereof
Technical Field
The invention relates to a PVC hose, in particular to an imitation rubber texture PVC hose and a production method thereof.
Background
In recent years, the rubber garden pipe suitable for farmland mining and water conservancy construction is large in usage amount and mainly comprises a drainage rubber pipe and a water pumping rubber pipe. The traditional rubber hose has the advantages of matte appearance, solid and heavy hand feeling, high elasticity, unobvious hardness change at high and low temperatures and high performance. However, the production process of the rubber hose is complex, the product is generally prepared by the procedures of preliminary rubber mixing, tabletting, extrusion, high-temperature vulcanization, core rod removal and the like, the high-temperature vulcanization procedure is complex, the energy consumption is high, the finished product has the odor of a vulcanizing agent which is difficult to avoid, the surface of the finished product is subjected to oil separation or frost spraying after the finished product is placed for a period of time, the hand feeling is poor, and the sanitation is poor.
Based on the problems, the conventional rubber hose is replaced by a high-performance PVC hose which is frequently prepared at present and is used in the fields of agricultural irrigation, industrial conveying and the like. However, the current PVC hose has the following technical drawbacks: the PVC hose is beautiful and has different appearance texture from the rubber hose. Because the rubber garden hose is earlier applied to garden glue, the feeling of matte and softness always exists in the memory of the aged people, particularly in the North American market, and many old people are the leading force of garden watering hose use. Therefore, the new PVC hose is not easily accepted by the elderly, and the market price is continuously lowered, and is considered as a low-end product.
Disclosure of Invention
Aiming at the technical defects, the invention aims to provide the rubber-like PVC hose which has an appearance similar to that of a rubber hose, is easily accepted by the old and has a large market space.
In order to achieve the purpose, the invention provides the following technical scheme:
the rubber-like PVC hose sequentially comprises an inner layer, a net layer and an outer layer from inside to outside, wherein the inner layer and the outer layer are both made of PVC materials, and the PVC materials comprise the following components in parts by weight:
50 parts of HPVC resin;
50 parts of extinction PVC resin;
60-90 parts of DINCH;
4-6 parts of epoxidized soybean oil;
2-4 parts of a flatting agent;
8-14 parts of low temperature resistant modifier;
8-14 parts of tackifying resin;
1-1.4 parts of a stabilizer;
0-75 parts of calcium carbonate;
0.5-1.5 parts of lubricant.
Through adopting above-mentioned technical scheme, the PVC hose is formed by three layer construction complex, feels thick and solid, and the setting of weaving the stratum reticulare can improve the structural strength of hose. The outer layer and the inner layer are made of self-made PVC materials, wherein HPVC and delustering PVC resin are blended to be used as matrix resin, and the HPVC, namely the polyvinyl chloride with high polymerization degree, not only maintains the original characteristics of the PVC, but also has the advantages of small compression permanent deformation and thermal deformation, high strength, good heat resistance and cold resistance, excellent electrical insulation performance and the like; the extinction PVC resin is a chemical micro-crosslinking structure PVC resin, and tiny concave-convex parts are formed on the surface of a product to form diffuse reflection, so that extinction performance is shown.
The epoxidized soybean oil and DINCH are compounded as a plasticizer, and the plasticizer has good compatibility with the PVC blend, low volatility, small migration, strong thermal stability and light stability, good water resistance and oil resistance, can enable the product to have good mechanical strength, weather resistance and electrical property, and is nontoxic. The addition of the flatting agent can reduce the glossiness of the surface of the hose and has matte texture. The low temperature resistance of the PVC hose can be improved by adding the low temperature resistant modifier, and the problem that the use range of the traditional PVC hose is limited to-5 ℃ to 65 ℃ is solved. The addition of tackifying resin, on the one hand make outer extrusion moulding in the time bond firmly with the inlayer to guarantee that finished product hose each item performance accords with the design requirement, on the other hand tackifying resin has and is similar to NBR, can improve PVC's resilience, improves PVC's high low temperature performance.
The formula of the PVC material is reasonably designed, so that the prepared PVC hose meets the international standard in environmental protection, has dry hand feeling, no oil stain precipitation, no odor and good sanitary performance, and can be used at the temperature of between 20 ℃ below zero and 80 ℃; on the other hand, the rubber hose has matte appearance, good rebound resilience, overall texture close to that of a rubber hose, easy acceptance by the old people and large market space.
The invention is further configured to: the flatting agent is silicon dioxide.
By adopting the technical scheme, a large number of silica particles with proper particle sizes are distributed in the PVC matrix, and the refractive index of the silica particles is close to that of the resin, so that a fine rough surface can be formed on the surface of the PVC hose, and the glossiness is effectively reduced.
The invention is further configured to: the tackifying resin is tall oil rosin.
By adopting the technical scheme, tall oil rosin also called liquid rosin plays a role in plasticizing and tackifying on one hand, and has a synergistic effect with a delustering agent on the other hand, so that the delustering effect is enhanced.
The invention is further configured to: the low temperature resistant modifier is DOA modifier.
By adopting the technical scheme, DOA (dioctyl adipate), namely dioctyl adipate, has good compatibility with PVC resin, and can improve the toughness and low-temperature performance.
The invention is further configured to: the low-temperature resistant modifier is nano styrene butadiene rubber particles.
By adopting the technical scheme, the nano styrene butadiene rubber particles are rubber elastomers, have excellent cold resistance at low temperature, can effectively improve the low temperature resistance of PVC plastics, and can not be agglomerated in a PVC matrix.
The invention is further configured to: the tackifying resin is maleic acid rosin.
Through adopting above-mentioned technical scheme, maleic acid rosin plays the effect of plastifying the increase viscosity on the one hand, and on the other hand further improves the compatibility of nanometer butadiene styrene rubber particle and PVC base member, and then improves its modification effect.
The invention is further configured to: the tackifying resin is any one of rosin and rosin derivatives.
By adopting the technical scheme, the rosin and the derivatives thereof have good cohesiveness, and particularly have good pressure sensitivity, fast viscosity and low-temperature viscosity.
The invention is further configured to: the outer layer outside is provided with the wearing layer, the wearing layer for crowded shaping altogether and by the PVC material is made.
Through adopting above-mentioned technical scheme, increase PVC hose's thickness makes feel more thick and more solid and wearability reinforcing.
The invention is further configured to: the inner layer is provided with an antibacterial layer which is formed by co-extrusion and is made of PTEE material.
By adopting the technical scheme, the PTEE layer, namely the thermoplastic polyester elastomer, also called polyester rubber, has excellent elasticity of rubber and easy processing performance of thermoplastic plastics.
The invention also aims to provide a production method of the rubber-like PVC hose.
A production method of an imitation rubber PVC hose comprises the following steps:
s1 granulation: mixing HPVC resin, extinction PVC resin, DINCH, epoxidized soybean oil, a stabilizer and calcium carbonate according to the weight parts required by the formula, continuously stirring for 8-12min, heating to 100-110 ℃, then adding a lubricant, tackifying resin, a low-temperature resistant modifier and a flatting agent, continuously stirring, continuously heating to 120-130 ℃, heating at the rate of 4-6 ℃/min, blanking and granulating to obtain PVC granules, and cooling for later use;
s2 extrusion of inner layer: putting the PVC particles into a pipe extruding machine, and extruding to obtain an inner layer;
s3 winding the net wire: winding the polyester braided wire on the outer side of the inner layer by using a winding machine;
s4 extrusion of outer layer: extruding the outer layer by a pipe extruding machine to obtain a PVC hose;
s5 cutting: and cutting the PVC hose to a required length.
Through adopting above-mentioned technical scheme, compare in rubber hose, need not the vulcanization in the PVC hose technology forming process, but direct processing finished product and can use repeatedly, simple process, the goods hygienic properties is better, and waste recycling is simple.
In conclusion, the invention has the following beneficial effects:
the formula of the PVC material is reasonably designed, so that the prepared PVC hose meets the international standard in environmental protection, has dry hand feeling, no oil stain precipitation, no odor and good sanitary performance, and can be used at the temperature of between 20 ℃ below zero and 80 ℃; on the other hand, the rubber hose has matte appearance, good rebound resilience, overall texture close to that of a rubber hose, easy acceptance by the old people and large market space.
Drawings
Fig. 1 is a schematic structural diagram of the first embodiment.
Description of reference numerals: 1. an antimicrobial layer; 2. an inner layer; 3. a mesh layer; 4. an outer layer; 5. and a wear-resistant layer.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
The first embodiment is as follows:
an imitation rubber PVC hose, as shown in figure 1, comprises an antibacterial layer 1, an inner layer 2, a net layer 3, an outer layer 4 and a wear-resistant layer 5 from inside to outside in sequence. The inner layer 2, the outer layer 4 and the wear-resistant layer 5 are all made of the same PVC material, and are only different from each other in that: calcium carbonate as a filler is added into the PVC material formulas of the inner layer 2 and the outer layer 4, and the calcium carbonate as the filler is not added into the PVC material formula of the wear-resistant layer 5. The PVC material has a specially designed formula, and has the advantages of matte surface, good rebound resilience, rubber texture and good high-low temperature performance. The antibacterial layer 1 and the wear-resistant layer 5 are both formed through a co-extrusion process, and the antibacterial layer 1 is made of a PTEE material. The net layer 3 is formed by winding 1000D terylene.
Example two:
in the first embodiment, the PVC material used for the inner layer and the outer layer comprises the following components in parts by weight:
50 parts of HPVC resin, the trade name is DH-3000, purchased from Hangzhou electrochemical new materials Co., Ltd;
50 parts of extinction PVC resin, the brand number PX-3000, purchased from Hangzhou electrochemical new materials Co., Ltd;
60 parts of DINCH, a Pasteur environment-friendly plasticizer, and a Chinese name cyclohexane 1, 2-dicarboxylic acid diisononyl ester;
4 parts of epoxidized soybean oil, and the brand CP Cizer B-22;
2 parts of a delustering agent, wherein the delustering agent is high-porosity silicon dioxide, the particle size is 3 mu m, and the porosity is 1.8 ml/g;
8 parts of low temperature resistant modifier, wherein the low temperature resistant modifier is DOA modifier, namely dioctyl adipate;
8 parts of tackifying resin, wherein the tackifying resin is gum rosin;
1 part of stabilizer, wherein the stabilizer is a calcium-zinc composite stabilizer;
50 parts of calcium carbonate with the granularity of 3000 meshes;
0.5 part of lubricant, wherein the lubricant is formed by mixing calcium stearate and PE wax with equal mass.
the PVC material ① for forming the inner layer and the outer layer, and the formula after removing the calcium carbonate ① for forming the wear-resistant layer.
A production method of an imitation rubber PVC hose comprises the following steps:
① S ① 1 ①, ① granulating ①, ① namely ① adding ① HPVC ① resin ①, ① extinction ① PVC ① resin ①, ① DINCH ①, ① epoxidized ① soybean ① oil ①, ① a ① stabilizer ① and ① calcium ① carbonate ① into ① a ① mixer ① according ① to ① the ① required ① weight ① parts ① of ① the ① PVC ① material ①, ① stirring ① at ① a ① high ① speed ① to ① obtain ① powder ①, ① mixing ① the ① materials ① by ① using ① a ① stirring ① friction ① heating ① mode ①, ① continuously ① stirring ① for ① 8 ① min ①, ① heating ① to ① 100 ① ℃ ①, ① then ① adding ① a ① lubricant ①, ① tackifying ① resin ①, ① a ① low ① - ① temperature ① resistant ① modifier ① and ① a ① flatting ① agent ①, ① continuously ① stirring ①, ① heating ① to ① 120 ① ℃ ①, ① heating ① at ① a ① speed ① of ① 4 ① ℃ ①/① min ①, ① blanking ① and ① granulating ① after ① heating ① to ① obtain ① PVC ① particles ①, ① and ① cooling ① for ① later ① use ①; ①
S2, extruding an inner layer, namely selecting a proper inner and outer pipe die according to the size of a pipe body with the specification of 16.5 multiplied by 22.5mm, loading 1000D terylene on a winding machine for later use, putting the PVC particles ① into an inner pipe machine and an outer pipe machine, extruding the inner layer by the inner pipe machine, and co-extruding and molding a PTEE material to obtain an antibacterial layer;
s3 winding the net wire: winding the polyester braided wire on the outer side of the inner layer by using a winding machine, wherein the number of nodes is 38 +/-1/100 mm;
s4, extruding an outer layer, namely extruding the outer layer by an outer tube machine, co-extruding PVC particles to obtain a wear-resistant layer, and obtaining a PVC hose;
s5 cutting: and cutting the PVC hose to a required length.
The inner pipe machine and the outer pipe machine are the pipe extruding machines.
Example three:
in the first embodiment, the PVC material used for the inner layer and the outer layer comprises the following components in parts by weight:
50 parts of HPVC resin, the trade name is DH-3000, purchased from Hangzhou electrochemical new materials Co., Ltd;
50 parts of extinction PVC resin, the brand number PX-3000, purchased from Hangzhou electrochemical new materials Co., Ltd;
DINCH 90 parts, basf environment-friendly plasticizer, Chinese name cyclohexane 1, 2-dicarboxylic acid diisononyl ester;
6 parts of epoxidized soybean oil, and the brand CP Cizer B-22;
4 parts of a delustering agent, wherein the delustering agent is high-porosity silicon dioxide, the particle size is 3 mu m, and the porosity is 1.8 ml/g;
14 parts of low temperature resistant modifier, wherein the low temperature resistant modifier is DOA modifier, namely dioctyl adipate;
14 parts of tackifying resin, wherein the tackifying resin is hydrogenated rosin;
1.4 parts of a stabilizer, wherein the stabilizer is a calcium-zinc composite stabilizer;
75 parts of calcium carbonate with the granularity of 3000 meshes;
1.5 parts of lubricant, wherein the lubricant is formed by mixing calcium stearate and PE wax with equal mass.
the PVC material ① for forming the inner layer and the outer layer, and the formula after removing the calcium carbonate ① for forming the wear-resistant layer.
A production method of an imitation rubber PVC hose comprises the following steps:
① S ① 1 ①, ① granulating ①, ① namely ① adding ① HPVC ① resin ①, ① extinction ① PVC ① resin ①, ① DINCH ①, ① epoxidized ① soybean ① oil ①, ① a ① stabilizer ① and ① calcium ① carbonate ① into ① a ① mixer ① according ① to ① the ① required ① weight ① parts ① of ① the ① PVC ① material ①, ① stirring ① at ① a ① high ① speed ① to ① pulverize ①, ① mixing ① the ① materials ① by ① using ① a ① stirring ① friction ① heating ① mode ①, ① continuously ① stirring ① for ① 12 ① min ①, ① heating ① to ① 110 ① ℃ ①, ① then ① adding ① a ① lubricant ①, ① tackifying ① resin ①, ① a ① low ① - ① temperature ① resistant ① modifier ① and ① a ① flatting ① agent ①, ① continuously ① stirring ①, ① continuously ① heating ① to ① 130 ① ℃ ①, ① heating ① at ① a ① speed ① of ① 6 ① ℃ ①/① min ①, ① blanking ① and ① granulating ① after ① heating ① to ① obtain ① PVC ① particles ①, ① and ① cooling ① for ① later ① use ①; ①
S2, extruding an inner layer, namely selecting a proper inner and outer pipe die according to the size of a pipe body with the specification of 16.5 multiplied by 22.5mm, loading 1000D terylene on a winding machine for later use, putting the PVC particles ① into an inner pipe machine and an outer pipe machine, extruding the inner layer by the inner pipe machine, and co-extruding and molding a PTEE material to obtain an antibacterial layer;
s3 winding the net wire: winding the polyester braided wire on the outer side of the inner layer by using a winding machine, wherein the number of nodes is 38 +/-1/100 mm;
s4, extruding an outer layer, namely extruding the outer layer by an outer tube machine, co-extruding PVC particles to obtain a wear-resistant layer, and obtaining a PVC hose;
s5 cutting: and cutting the PVC hose to a required length.
The inner pipe machine and the outer pipe machine are the pipe extruding machines.
Example four:
in the first embodiment, the PVC material used for the inner layer and the outer layer comprises the following components in parts by weight:
50 parts of HPVC resin, the trade name is DH-3000, purchased from Hangzhou electrochemical new materials Co., Ltd;
50 parts of extinction PVC resin, the brand number PX-3000, purchased from Hangzhou electrochemical new materials Co., Ltd;
DINCH 75 parts, a Pasteur environment-friendly plasticizer, and a Chinese name cyclohexane 1, 2-dicarboxylic acid diisononyl ester;
5 parts of epoxidized soybean oil, and the brand CP Cizer B-22;
3 parts of a delustering agent, wherein the delustering agent is high-porosity silicon dioxide, the particle size is 3 mu m, and the porosity is 1.8 ml/g;
10 parts of low temperature resistant modifier, wherein the low temperature resistant modifier is DOA modifier, namely dioctyl adipate;
10 parts of tackifying resin, wherein the tackifying resin is wood rosin;
1.2 parts of a stabilizer, wherein the stabilizer is a calcium-zinc composite stabilizer;
60 parts of calcium carbonate, and the granularity is 3000 meshes;
1 part of lubricant, wherein the lubricant is formed by mixing calcium stearate and PE wax with equal mass.
the PVC material ① for forming the inner layer and the outer layer, and the formula after removing the calcium carbonate ① for forming the wear-resistant layer.
A production method of an imitation rubber PVC hose comprises the following steps:
① S ① 1 ①, ① granulating ①, ① namely ① adding ① HPVC ① resin ①, ① extinction ① PVC ① resin ①, ① DINCH ①, ① epoxidized ① soybean ① oil ①, ① a ① stabilizer ① and ① calcium ① carbonate ① into ① a ① mixer ① according ① to ① the ① required ① weight ① parts ① of ① the ① PVC ① material ①, ① stirring ① at ① a ① high ① speed ① to ① obtain ① powder ①, ① mixing ① the ① materials ① by ① using ① a ① stirring ① friction ① heating ① mode ①, ① continuously ① stirring ① for ① 10 ① min ①, ① heating ① to ① 105 ① ℃ ①, ① then ① adding ① a ① lubricant ①, ① tackifying ① resin ①, ① a ① low ① - ① temperature ① resistant ① modifier ① and ① a ① flatting ① agent ①, ① continuously ① stirring ①, ① continuously ① heating ① to ① 125 ① ℃ ①, ① heating ① at ① a ① speed ① of ① 5 ① ℃ ①/① min ①, ① blanking ① and ① granulating ① after ① heating ① to ① obtain ① PVC ① particles ①, ① and ① cooling ① for ① later ① use ①; ①
S2, extruding an inner layer, namely selecting a proper inner and outer pipe die according to the size of a pipe body with the specification of 16.5 multiplied by 22.5mm, loading 1000D terylene on a winding machine for later use, putting the PVC particles ① into an inner pipe machine and an outer pipe machine, extruding the inner layer by the inner pipe machine, and co-extruding and molding a PTEE material to obtain an antibacterial layer;
s3 winding the net wire: winding the polyester braided wire on the outer side of the inner layer by using a winding machine, wherein the number of nodes is 38 +/-1/100 mm;
s4, extruding an outer layer, namely extruding the outer layer by an outer tube machine, co-extruding PVC particles to obtain a wear-resistant layer, and obtaining a PVC hose;
s5 cutting: and cutting the PVC hose to a required length.
The inner pipe machine and the outer pipe machine are the pipe extruding machines.
Example five:
the difference from example four is that the tackifying resin is tall oil rosin.
Example six:
the difference from the fourth embodiment is that the low temperature resistant modifier is selected from nano styrene butadiene rubber particles.
Example seven:
the difference from the fourth embodiment is that the low temperature resistant modifier is selected from nano styrene butadiene rubber particles, and the tackifying resin is maleic acid rosin.
Comparative example one:
the difference from the second embodiment is that no tackifying resin is included.
Comparative example two:
the difference from example two is that no low temperature resistance modifier is included.
Comparative example three:
common woven PVC hose is commercially available.
Comparative example four:
common rubber garden watering pipes are commercially available.
And (3) performance testing:
1. sensory testing
And (3) judging whether the second to fifth examples, the first comparative example and the third comparative example are close to the fourth comparative example by taking 20 ordinary people with normal sensory ability as test objects, appearance and touch as test directions and taking the fourth comparative example as a reference, performing scoring, wherein the score is 0-10, the score of 10 represents that the similarity degree is highest, and taking the average value to obtain the result shown in the table 1.
TABLE 1
Example two EXAMPLE III Example four EXAMPLE five Comparative example 1 Comparative example No. three
Degree of similarity 7.4 7.3 7.5 8.1 6.3 3.7
2. High and low temperature resistance test
The PVC hoses of examples two to seven, comparative example two and comparative example three were each subjected to the use test according to the following procedure: firstly, slowly raising the water pressure to 0.7MPa at normal temperature, keeping the water pressure for 1h, pressurizing to 2.0MPa, and keeping the water pressure for 1 min; then placing the PVC hose at a temperature of a ℃ for 2 h; then carrying out a hot water blasting test at 80 ℃, wherein the water pressure is 1.0MPa and lasts for 30 min; finally, the water pressure is slowly increased to 0.3MPa at normal temperature and kept for 1 min.
And observing whether each part of the PVC hose has cracks, leakage or other defects after the test is finished, and if not, determining that the test is qualified. And (3) performing primary test, wherein a is-10 ℃, if the PVC hose is qualified, a is reduced by-5 ℃, and then performing secondary test until the PVC hose is cracked, leaked or otherwise defected, and recording the minimum a value of the qualified state.
The test results were as follows: the a values of examples two to five were-20 deg.C, the a value of example six was-25 deg.C, the a value of example seven was-30 deg.C, the a value of comparative example two was-10 deg.C, and comparative example three was failed.
It can be seen that the PVC hose of the present invention can be used at-20 to 80 deg.C, and the preferred embodiment can be used at-30 to 80 deg.C.
3. Hardness test
The shore a of the PVC hose of examples two to seven was 70 ± 5 after 15 seconds of finger pressure at room temperature, and the hardness change was not more than 5 hardness values after 4 hours of storage at 23 ℃ and 0 ℃ respectively.
4. Aging resistance test
The PVC hoses of examples two to seven all passed the aging resistance test at 113 ℃ for 168h, and the strength and elongation at break before and after aging were not more than + -20%.
5. Environmental protection test
The PVC hoses of the second to seventh examples all meet the detection requirements of heavy metal lead and the phenol class in the 65 th proposal of California of the United states.
The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.

Claims (10)

1. The utility model provides an imitative rubber matter feels PVC hose, includes inlayer (2), stratum reticulare (3), skin (4) from inside to outside in proper order, inlayer (2) and skin (4) are made by the PVC material, its characterized in that, the PVC material includes the component of following part by weight:
50 parts of HPVC resin;
50 parts of extinction PVC resin;
60-90 parts of DINCH;
4-6 parts of epoxidized soybean oil;
2-4 parts of a flatting agent;
8-14 parts of low temperature resistant modifier;
8-14 parts of tackifying resin;
1-1.4 parts of a stabilizer;
0-75 parts of calcium carbonate;
0.5-1.5 parts of lubricant.
2. The PVC hose of claim 1, which is characterized in that: the flatting agent is silicon dioxide.
3. The PVC hose of claim 2, which is characterized in that: the tackifying resin is tall oil rosin.
4. The PVC hose of claim 1, which is characterized in that: the low temperature resistant modifier is DOA modifier.
5. The PVC hose of claim 1, which is characterized in that: the low-temperature resistant modifier is nano styrene butadiene rubber particles.
6. The PVC hose of claim 5, which is characterized in that: the tackifying resin is maleic acid rosin.
7. The PVC hose of claim 1, which is characterized in that: the tackifying resin is any one of rosin and rosin derivatives.
8. The PVC hose of claim 1, which is characterized in that: the outer layer (4) outside is provided with wearing layer (5), wearing layer (5) for crowded shaping altogether and by the PVC material is made.
9. The PVC hose of claim 1, which is characterized in that: the inner layer (2) is provided with an antibacterial layer (1), and the antibacterial layer (1) is formed by co-extrusion and is made of a PTEE material.
10. A method for producing a rubber-like PVC hose according to claim 1, comprising the steps of:
s1 granulation: mixing HPVC resin, extinction PVC resin, DINCH, epoxidized soybean oil, a stabilizer and calcium carbonate according to the weight parts required by the formula, continuously stirring for 8-12min, heating to 100-110 ℃, then adding a lubricant, tackifying resin, a low-temperature resistant modifier and a flatting agent, continuously stirring, continuously heating to 120-130 ℃, heating at the rate of 4-6 ℃/min, blanking and granulating to obtain PVC granules, and cooling for later use;
s2 extrusion of inner layer: putting the PVC particles into a pipe extruding machine, and extruding to obtain an inner layer;
s3 winding the net wire: winding the polyester braided wire on the outer side of the inner layer by using a winding machine;
s4 extrusion of outer layer: extruding the outer layer by a pipe extruding machine to obtain a PVC hose;
s5 cutting: and cutting the PVC hose to a required length.
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