CN107501753A - A kind of low temperature resistant PP R tubing and preparation method thereof - Google Patents
A kind of low temperature resistant PP R tubing and preparation method thereof Download PDFInfo
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- CN107501753A CN107501753A CN201710882495.9A CN201710882495A CN107501753A CN 107501753 A CN107501753 A CN 107501753A CN 201710882495 A CN201710882495 A CN 201710882495A CN 107501753 A CN107501753 A CN 107501753A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/10—Homopolymers or copolymers of propene
- C08L23/14—Copolymers of propene
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- 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
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- 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
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- 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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- 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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- 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
- C08L2205/24—Crystallisation aids
- C08L2205/242—Beta spherulite nucleating agents
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- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The invention discloses a kind of low temperature resistant PP R tubing and preparation method thereof, it is prepared from the following raw materials in parts by weight：50 70 parts of PP R, 10 15 parts of PP B, 23 parts of poly butylene succinates, 0.5 6 parts of egg-shell meal, 12 parts of starch, 67 parts of block copolymerization polypropylenes, 12 parts of maleic anhydride styrene copolymers, 45 parts of sorbierites, 12 parts of beta crystal-type nucleaters, 89 parts of phthalic acid dimethyl esters, 12 parts of formamides.The present invention is beta nucleater modified by carrying out area load to the inorganic particulate in color masterbatch, the PPR pipe that PP B induction crystallizations prepare high-beta crystal content is added simultaneously, compared with prior art, β crystalline substances crystallization effect significantly improves, the problem of can effectively solve the problem that PP R tubing black brittleness.
Description
Technical field
The present invention relates to plastic applications, specific a kind of low temperature resistant PP-R pipe and preparation method thereof.
Background technology
PP-R pipe has the advantages that heat preservation energy-saving, green and excellent heat-resisting, oxidative stability and sanitation performance, with
Other cold hot water pipings are compared, and PP-R pipelines are moderate, cost-effective, are adapted to the domestic market demand.
At present, the popularization of China PP-R pipes is restricted by several factors：(1) the resin dedicated performances of domestic PP-R are bad,
The domestic degree of raw material is not high.(2) low-temperature flexibility of PP-R pipes is poor.Because low-temperature impact-resistant performance is poor, in low temperature environment bar
Under part, low temperature brittleness can occur for PP-R pipe, therefore easily damage in transit.
The content of the invention
It is an object of the invention to provide a kind of low temperature resistant PP-R pipe and preparation method thereof.
The purpose of the present invention can be achieved through the following technical solutions：
A kind of low temperature resistant PP-R pipe, it is prepared from the following raw materials in parts by weight：50-70 parts PP-R, 10-15 part PP-
B, 2-3 part poly butylene succinate, egg-shell meal 0.5-6 parts, 1-2 part starch, 6-7 part block copolymerization polypropylenes, 1-2 parts Malaysia
Acid anhydrides-styrol copolymer, 4-5 part sorbierites, 1-2 part beta crystal-type nucleaters, 8-9 part phthalic acid dimethyl esters, 1-2 part first
Acid amides.
Preferably, described a kind of low temperature resistant PP-R pipe, it is prepared from the following raw materials in parts by weight：60 parts of PP-R,
12 parts of PP-B, 3 parts of poly butylene succinates, 3 parts of egg-shell meal, 2 parts of starch, 6 parts of block copolymerization polypropylenes, 2 parts of maleic anhydrides-
Styrol copolymer, 4 parts of sorbierites, 2 parts of beta crystal-type nucleaters, 9 parts of phthalic acid dimethyl esters, 1 part of formamide.
Preparation method comprises the following steps：Proportionally raw material is placed in mixer and is pre-mixed uniformly, in mixer
In uniform mixture is thoroughly mixed with 30-50rpm rotating speeds；Then, the mixture is carried out again with double screw extruder
Product is obtained after annealing.
Use double screw extruder at a temperature of 120-190 DEG C, with 20-80rpm to the mixture melt blending.
Beneficial effects of the present invention：The present invention is changed by carrying out area load nucleating agent to the inorganic particulate in color masterbatch
Property, while the PPR pipe that PP-B induction crystallizations prepare high-beta crystal content is added, compared with prior art, β crystalline substance crystallization effects are notable
Improve, the problem of can effectively solve the problem that PP-R pipe black brittleness.
Embodiment
The present invention is described in further detail with reference to specific embodiment.
Embodiment 1
A kind of low temperature resistant PP-R pipe, it is prepared from the following raw materials in parts by weight：50 parts of PP-R, 10 parts of PP-B, 2 parts poly-
Succinic acid-butanediol ester, 0.5 part of egg-shell meal, 1 part of starch, 6 parts of block copolymerization polypropylenes, 1 part of maleic anhydride-styrene copolymerization
Thing, 4 parts of sorbierites, 1 part of beta crystal-type nucleater, 8 parts of phthalic acid dimethyl esters, 1 part of formamide.
Preparation method comprises the following steps：Proportionally raw material is placed in mixer and is pre-mixed uniformly, in mixer
In uniform mixture is thoroughly mixed with 30-50rpm rotating speeds；Then, the mixture is carried out again with double screw extruder
Product is obtained after annealing.
Use double screw extruder at a temperature of 120-190 DEG C, with 20-80rpm to the mixture melt blending.
Embodiment 2
A kind of low temperature resistant PP-R pipe, include the raw material of following parts by weight：70 parts of PP-R, 15 parts of PP-B, 3 parts of poly-succinics
Butanediol ester, 6 parts of egg-shell meal, 2 parts of starch, 7 parts of block copolymerization polypropylenes, 2 parts of maleic anhydride-styrene copolymers, 5 portions of sorbs
Alcohol, 2 parts of beta crystal-type nucleaters, 9 parts of phthalic acid dimethyl esters, 2 parts of formamides.
Preparation method comprises the following steps：Proportionally raw material is placed in mixer and is pre-mixed uniformly, in mixer
In uniform mixture is thoroughly mixed with 30-50rpm rotating speeds；Then, the mixture is carried out again with double screw extruder
Product is obtained after annealing.
Use double screw extruder at a temperature of 120-190 DEG C, with 20-80rpm to the mixture melt blending.
Embodiment 3
A kind of low temperature resistant PP-R pipe, include the raw material of following parts by weight：60 parts of PP-R, 12 parts of PP-B, 3 parts of poly-succinics
Butanediol ester, 3 parts of egg-shell meal, 2 parts of starch, 6 parts of block copolymerization polypropylenes, 2 parts of maleic anhydride-styrene copolymers, 4 portions of sorbs
Alcohol, 2 parts of beta crystal-type nucleaters, 9 parts of phthalic acid dimethyl esters, 1 part of formamide.
Preparation method comprises the following steps：Proportionally raw material is placed in mixer and is pre-mixed uniformly, in mixer
In uniform mixture is thoroughly mixed with 30-50rpm rotating speeds；Then, the mixture is carried out again with double screw extruder
Product is obtained after annealing.
Use double screw extruder at a temperature of 120-190 DEG C, with 20-80rpm to the mixture melt blending.
Above content is only citing made for the present invention and explanation, and affiliated those skilled in the art are to being retouched
The specific embodiment stated is made various modifications or supplement or substituted using similar mode, without departing from the design of invention
Or surmount scope defined in the claims, protection scope of the present invention all should be belonged to.
Claims (4)
1. a kind of low temperature resistant PP-R pipe, it is characterised in that it is prepared from the following raw materials in parts by weight：50-70 part PP-R,
10-15 parts PP-B, 2-3 part poly butylene succinate, egg-shell meal 0.5-6 parts, 1-2 part starch, 6-7 part block copolymerizations poly- third
Alkene, 1-2 part maleic anhydride-styrene copolymers, 4-5 part sorbierites, 1-2 part beta crystal-type nucleaters, 8-9 parts phthalic acid two
Formicester, 1-2 part formamides.
A kind of 2. low temperature resistant PP-R pipe according to claim 1, it is characterised in that its by following parts by weight raw material
It is made：60 parts of PP-R, 12 parts of PP-B, 3 parts of poly butylene succinates, 3 parts of egg-shell meal, 2 parts of starch, 6 parts of block copolymerizations poly- third
Alkene, 2 parts of maleic anhydride-styrene copolymers, 4 parts of sorbierites, 2 parts of beta crystal-type nucleaters, 9 parts of phthalic acid dimethyl esters, 1 part
Formamide.
3. a kind of low temperature resistant PP-R pipe according to claim 1, it is characterised in that preparation method comprises the following steps：
Proportionally raw material is placed in mixer and is pre-mixed uniformly, is thoroughly mixed with 30-50rpm rotating speeds in mixer
It is even to obtain mixture；Then, product is obtained after the mixture is made annealing treatment again with double screw extruder.
4. preparation method according to claim 3, it is characterised in that using double screw extruder in 120-190 DEG C of temperature
Under, with 20-80rpm to the mixture melt blending.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710882495.9A CN107501753A (en) | 2017-09-26 | 2017-09-26 | A kind of low temperature resistant PP R tubing and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710882495.9A CN107501753A (en) | 2017-09-26 | 2017-09-26 | A kind of low temperature resistant PP R tubing and preparation method thereof |
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| CN107501753A true CN107501753A (en) | 2017-12-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710882495.9A Pending CN107501753A (en) | 2017-09-26 | 2017-09-26 | A kind of low temperature resistant PP R tubing and preparation method thereof |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103360686A (en) * | 2013-07-25 | 2013-10-23 | 杭州鸿雁管道系统科技有限公司 | Low-temperature impact resistance PP-R tubing and preparation method thereof |
| CN103709522A (en) * | 2013-12-11 | 2014-04-09 | 绵阳市鹏洋高分子材料有限公司 | Special material for high-toughness and high-water pressure resistance polypropylene randon copolymer (PPR) pipe material and preparation process thereof |
| CN103772823A (en) * | 2014-01-24 | 2014-05-07 | 南通红石科技发展有限公司 | Anti-impact composite plastic and preparation method thereof |
-
2017
- 2017-09-26 CN CN201710882495.9A patent/CN107501753A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103360686A (en) * | 2013-07-25 | 2013-10-23 | 杭州鸿雁管道系统科技有限公司 | Low-temperature impact resistance PP-R tubing and preparation method thereof |
| CN103709522A (en) * | 2013-12-11 | 2014-04-09 | 绵阳市鹏洋高分子材料有限公司 | Special material for high-toughness and high-water pressure resistance polypropylene randon copolymer (PPR) pipe material and preparation process thereof |
| CN103772823A (en) * | 2014-01-24 | 2014-05-07 | 南通红石科技发展有限公司 | Anti-impact composite plastic and preparation method thereof |
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